• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    17 TOGETHER TOGETHER Machine for driving nails into workpieces, comprising: - a reversible drive motor (3) with an output shaft (5), - an axially displaceable nail drive means (6), which is intended to be pressed against a nail for driving in the nail in a workpiece, and - a motion conversion mechanism for converting a rotational movement of the output shaft of the drive motor into an axial translational movement of the nail drive means, this movement conversion mechanism comprising a screw rod (9) and a co-screw rod (10). The nut is axially fixed in a holder unit (11) and prevented from displacing in axial drawing by a mutual rotation between the screw rod and the nut, the screw rod being displaced relative to the nut and the holder unit in the axial direction when the screw rod and nut were subjected to the drive motor. rotation. The nail drive means is connected to the screw rod to be displaced together with it in the axial direction. (Pig 4c)
    公开号:SE1000438A1
    申请号:SE1000438
    申请日:2010-04-30
    公开日:2011-10-31
    发明作者:Leif Davidsson
    申请人:Swans Mek Verkst I Gagnef Ab；
    IPC主号:
    专利说明:

    OBJECT OF THE INVENTION The object of the present invention is to provide a machine of the type initially introduced with a new and advantageous design.
    SUMMARY OF THE INVENTION According to the present invention, said object is achieved by means of a machine having the features defined in claim 1.
    The machine according to the invention comprises: - a reversible drive motor with an output shaft, - an axially displaceable nail drive means, which is intended to be pressed against a nail to drive the nail into a workpiece, - a motion conversion mechanism for converting a rotational movement of the output motor output shaft to an axial translational movement of the nail drive means, this movement conversion mechanism comprising a screw rod and a nut cooperating with the screw rod, and - a holding unit, here called first holding unit, in which the nut is arranged.
    The nut is axially fixed in said holding unit so that the nut is prevented from displacing in axial drawing by a mutual rotation between the screw rod and the nut and so that the screw rod is displaced relative to the nut and this holding unit in the axial direction when the screw rod and nut are subjected to a drive motor. mutual rotation. Furthermore, the nail drive means is connected to the screw rod to be displaced together with it in the axial direction when the screw rod and the nut are subjected to a relative rotation under the action of the drive motor.
    In the machine according to the invention, it is thus not the nut cooperating with the screw rod but instead the screw rod which is displaced in its axial direction during a mutual rotation between the screw rod and the nut. This represents a completely new operating principle for a machine of the type in question and gives, among other things, the advantage that the nail drive means can be connected directly to the screw rod, concentric with it. As a result, the machine becomes well-balanced with respect to the power transmission from the screw rod to the nail drive means, at the same time as the power transmission mechanism between the screw rod and the nail drive means can be designed in a particularly simple manner.
    According to an embodiment of the invention, the machine comprises a second holding unit, which has a guide groove for receiving a nail, the nail driving means being slidably received in this guide groove to be displaced downwards therein and pushing a nail received in the guide groove out of the guide groove and into a workpiece when the screw rod and the nut are subjected to a mutual rotation in a first direction under the action of the drive motor.
    Another embodiment of the invention is characterized by: - that the machine comprises a support member arranged above the first holder unit, which is connected to the screw rod to be displaced together therewith when the screw rod and the nut are subjected to a mutual rotation under the action of the drive motor, the holding unit is connected to the support means via one or more elongate connecting elements, the respective connecting elements extending along the screw rod and being supported by the support means and slidably mounted at the other holding unit, - that each connecting element has at its lower end a shoulder which is arranged for engagement with a corresponding shoulder of the second holding unit, - that the respective connecting element is displaceable downwards relative to the second holding unit when the second holding unit is in a lowered position in abutment against a workpiece and the screw rod and nut are subjected to a bend under the action of the drive motor. rotation in said first direction, and - that the second holding unit, while being supported by said connecting element via said shoulders, is displaceable upwards in the direction of the first holding unit from said lowered position to a raised position when the screw rod and the nut are subjected to a mutual rotation in a second direction under the action of the drive motor.
    As a result, the second holding unit during the initial part of a nail drive process can be displaced downwards together with the screw rod to abut against a workpiece and then remain in this position while the screw rod and the nail drive means are moved further downwards to drive one into the other. the holding unit holds nails into the workpiece. When the screw rod is then displaced upwards, it lifts the second holding unit away from the workpiece via said connecting element so that a feed of the workpiece is allowed. With the aid of said connecting element, the displacement movements of the second holding unit are thus automatically coordinated with the axial displacement movements of the screw rod and the nail drive means in a simple and functional manner.
    According to another embodiment of the invention, the machine comprises a spring means acting between the first holding unit and the second holding unit, against the action of which the second holding unit is displaceable in the direction of the first holding unit.
    This spring means ensures that the second holding unit is pressed with a suitable force against a workpiece when this holding unit is lowered to abutment against the workpiece under the action of the screw rod.
    According to another embodiment of the invention, the screw rod is connected to the output shaft of the drive motor to be rotated therefrom, the nut being rotatably arranged in the first holding unit so that the screw rod is displaced relative to the nut and the first holding unit in axial direction with the drive rod when the screw rod under the action of the drive motor, the nut is rotated relative. In the latter case, the nail drive means is suitably rotatably mounted at the lower end of the screw rod. This avoids the transmission of torque from the screw rod to the nail drive means, and when the nail drive means is pressed against a nail head to drive a nail into a workpiece, the nail drive means will therefore not rotate relative to the nail head.
    According to another embodiment of the invention, the nut is rotatably mounted in the first holder unit and connected to the output shaft of the drive motor to be rotated therefrom, the screw rod being rotatably arranged so that the screw rod is caused to be displaced relative to the nut and the first the holder unit in the axial direction when the nut is rotated relative to the screw rod under the action of the drive motor.
    Other advantageous features of the machine according to the invention appear from the dependent claims and the description below.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail below with the aid of exemplary embodiments, with reference to the accompanying drawings.
    It is shown in: Fig. 1 a schematic front view of a machine according to a first embodiment of the present invention, Fig. 2 a partially cut side view according to the line II-II in Fig. 1, Fig. 3 a schematic side view of the machine according to Fig. 1, and Figs. 4a-4c partially cut-away front views along the line IV-IV in Fig. 3, with the machine shown in different positions during a process for driving a nail into a workpiece, Fig. 5 a schematic side view of a machine according to a second embodiment of the present invention, and Fig. 6 is a cut front view along the line VI-VI in Fig. 5.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Figs. 1-6 show machines 1, 1 * according to various embodiments of the present invention for driving nails into a workpiece 2.
    The respective machine 1, 1 'comprises a reversible drive motor 3 with a motor housing 4 and an output shaft 5. The drive motor 3 is suitably constituted by an electric motor. The machine further comprises an axially displaceable nail drive means 6, which is intended to be pressed against a nail 7 to drive the nail into a workpiece 2.
    A rotational movement of the output shaft 5 of the drive motor is converted into an axial translational movement of the nail drive means 6 by means of a motion conversion mechanism 8, so that the nail drive means 6 is displaced in the vertical direction downwards in a rotation of the output shaft 5 in a first direction of rotation upward direction during a rotation of the output shaft 5 in the opposite direction of rotation. The movement conversion mechanism 8 comprises a screw rod 9 and a nut 10 cooperating with the screw rod. The nut 10 is axially fixed in a first holding unit 11 so that the nut is prevented from being displaced in axial drawing by a mutual rotation between the screw rod 9 and the nut 10 and so that the screw rod is displaced relative to the nut and the holding unit 11 in the axial direction when the screw rod and the nut are subjected to a mutual rotation under the action of the drive motor 3. The holder unit 11 is immovably clamped in a machine frame 12.
    The screw rod 9 is preferably a ball screw and the nut 10 a ball nut. The screw rod could alternatively be a sliding screw.
    The nail drive means 6 is attached to the lower end of the screw rod 9 to be displaced together with the screw rod in the axial direction when the screw rod 9 and the nut 10 are subjected to a mutual rotation under the action of the drive motor 3. In the illustrated embodiments, the nail drive member 6 is suspended in the screw rod 9 via a sleeve-shaped connecting member 13, which is attached at one end to the lower end of the screw rod. The connector 13 has an interior space, which is accessible via an opening at the other end of the connector. The nail drive means 6 extends into the inner space of the connecting means 13 via said opening and has at its upper end a fastening portion 15 which is received in this space. The nail drive means 6 further has an elongate portion 16, which has the shape of a pin and extends vertically downwards from the fastening portion 15 in line with the center axis of the screw rod.
    This elongate portion 16 and the screw rod 9 are thus concentric.
    Each machine 1, 1 'further comprises a second holding unit 17, which is displaceable in the vertical direction relative to the first holding unit 11 and which has a guide groove 18 for receiving a nail 7. The elongate portion 16 of the nail driving means is slidably received therein. guide groove 18 for sliding downwards therein and pushing a nail 7 received in the guide groove out of the guide groove and into a workpiece 2 when the screw rod 9 and the nut 10 are subjected to a mutual rotation in a first direction under the action of the drive motor 3, as illustrated in Fig. 4a -4c.
    A nail magazine 19 is attached to the second holder unit 17. Nails 7 can be fed one by one into the guide groove 18 by means of feed means arranged in the nail magazine 19.
    Above the first holding unit 11 a support member 20 is arranged. In the illustrated embodiments, this support member 20 is constituted by a plate. The support member 20 is connected to the screw rod 9 to be displaced together with it in the axial direction when the screw rod 9 and the nut 10 are subjected to a mutual rotation under the action of the drive motor 3. The second holding unit 17 is connected to the support member 20 via a number of elongate connecting elements 22, for example in the form of rods, which extend along the screw rod 9. Respective connecting elements 22 are attached to and supported by the support member 20 and slidably mounted at the second holding unit 17. In the illustrated embodiments, the connecting elements 22 are also slidably mounted at the first holding unit 11. The connecting elements 22 are suitably two in number and arranged parallel to each other on opposite sides of the screw rod 9, as illustrated in Fig. 1. , 4a-4c and 6.
    Each connecting element 22 has at its lower end a shoulder 23 (see Figs. 4c and 6), which is arranged for engagement with a corresponding shoulder 24 of the second holding unit 17. In the illustrated embodiments, the first-mentioned shoulder 23 is formed by a washer 25, which is attached to the lower end of the connecting member 22 and projects radially therefrom.
    Respective connecting element 22 is displaceable downwards relative to the second holding unit 17 when the second holding unit is in a lowered position in abutment against a workpiece (see Fig. 4b) and the screw rod 9 and the nut 10 under the action of the drive motor 3 are subjected to a mutual rotation in a first direction, as illustrated in Figs. 4b and 4c. Furthermore, the second holding unit 17, while being supported by the connecting elements 22 via the shoulders 23, 24, is displaceable upwards in the direction of the first holding unit 11 from said lowered position (see Fig. 4b) to a raised position (see Fig. 4a) when the screw rod 9 and the nut 10 are subjected to a mutual rotation in a second direction under the action of the drive motor 3. By means of the connecting elements 22, the second holder unit 17 can thus be lifted up from a workpiece 2 after a nail 7 has been driven into it, in order thus to allow a feed of the workpiece 2.
    A spring member 26, for example in the form of a compression spring, is arranged to act between the first holding unit 11 and the second holding unit 17. The second holding unit 17 is displaceable in the direction of the first holding unit 11 against the action of this spring means 26. In the illustrated embodiments, the spring member 26 consists of a coil spring clamped between the holding units 11, 17, which at one end abuts against a downwardly facing support surface of the first holding unit 11 and at its other end an end. It abuts an upwardly facing support surface of the second holder unit 17. This coil spring 26 surrounds the screw rod 9 and is received in an interior space 27 of the second holder unit 17.
    In the embodiment illustrated in Figs. 1-4, the screw rod 9 is connected to the output shaft 5 of the drive motor to be rotated therefrom. The nut 10 is in this case rotatably arranged in the first holder unit 11, so that the screw rod 9 is caused to move relative to the nut 10 and this holder unit 11 in the axial direction together with the drive motor 3 when the screw rod is rotated relative to the nut under the action of the drive motor. . The drive motor 3 is supported by the screw rod 9, which in turn is supported by the machine frame 12 via the nut 10 and the holder unit 11. The drive motor 3 thus accompanies the screw rod 9 in a vertical displacement relative to the nut 10, the holder unit 11 and the machine frame 12 when the screw rod 9 is rotated about its longitudinal axis under the action of the drive motor. The support member 20 is in this case arranged between the drive motor 3 and the first holding unit 11 and the screw rod 9 is rotatably mounted at the support member 20. The support member 20 is connected to the motor housing 4 to be displaced together with the drive motor 3 and the screw rod 9 in the axial direction when the screw rod under the action of the drive motor 3 is rotated relative to the nut 10. In the illustrated example, the support member 20 is connected to the motor housing 4 via a number of connecting rods 21, which extend between the motor housing 4 and the support member 20 parallel to the drive shaft output shaft 5.
    In the embodiment illustrated in Figs. 1-4, the nail drive means 6 is rotatably mounted at the screw rod 9 so that a mutual rotation between the nail drive means and the screw rod is allowed.
    In the embodiment illustrated in Figs. 1-4, the screw rod 9 is connected to the output shaft 5 of the drive motor via a safety coupling 28, which is arranged to disengage the output shaft 5 of the drive motor from the screw rod 9 and thereby allow mutual rotation between them when the torque between the drive motor output shaft and the screw rod exceed a given limit value.
    This limits the compressive force that can be exerted by the nail drive means 6 against a workpiece 2, thereby ensuring that the nail drive means 6 is not pressed too hard against the workpiece. This makes it possible to avoid overloading the machine and damage to the workpiece.
    In the embodiment illustrated in Figs. 5 and 6, the nut 10 is rotatably mounted in the first holder unit 11 and connected to the output shaft 5 of the drive motor to be rotated therefrom. The drive motor 3 is in this case supported by the machine frame 12 by being attached to it either directly or via the first holding unit 11. In the illustrated example the drive motor 3 is attached to the holding unit 11 via a holding means 32. In the illustrated example the drive motor extends output shaft 5 parallel to the screw rod 9 and the nut 10. A first pulley 33 is rotatably connected to the output shaft 5 of the drive motor and a second pulley 34 is rotatably connected to the nut 10. A drive belt 35 is arranged around these pulleys 33 , 34 and engages therewith to transmit a rotational movement of the output shaft 5 of the drive motor to a rotational movement of the nut 10. In this case the screw rod 9 is rotatably connected to the support member 20 and thus not rotatable relative to the holding units 11, 17 and the machine frame 12. This causes the screw rod 9 to be displaced relative to the nut 10 and the first holding unit 11 in the axial direction when the nut under the action of the drive motor rn 3 is rotated relative to the screw rod.
    Each machine 1, 1 'is suitably provided with a sensor 29 (see Fig. 2), preferably in the form of an inductive sensor, for sensing a lower position of the nail drive means 6 and an electronic control unit (not shown) which is connected to this sensor 29.
    The control unit is arranged to reverse the drive motor 3 when it receives from the sensor 29 a signal indicating that the nail drive means 6 has reached this lower position. In the illustrated embodiment, this sensor 29 is mounted on a plate 30 (see Fig. 1) which is attached to the second holding unit 17 and can be adjusted in various vertical positions thereon to thereby allow an adjustment of the lower turning position of the nail drive means. The sensor 29 can for instance be arranged to register that the nail drive means 6 has reached the lower position by sensing when an annular and radially projecting projection 31 (see Fig. 2) on the sleeve-shaped connecting means 13 has reached level with the sensor.
    The respective machine 1, 1 'is suitably also provided with an additional sensor (not shown), preferably in the form of an inductive sensor, for sensing an upper position of the nail drive means 6.
    Said control unit is arranged to stop or reverse the drive motor 3 when it receives from this sensor a signal indicating that the nail drive means 6 has reached this upper position. The latter sensor can be attached to the first holder unit 11 or to the machine stand 12. In Figs. 4a-4c different stages are illustrated during a process for driving a nail 7 into a workpiece 2 by means of the machine 1 described above. In an initial stage, the screw rod 9, the drive motor 3, the nail drive means 6 and the second holding unit 17 are in an upper position, as illustrated in Fig. 4a. In this position the second holding unit 17 rests against the shoulders 23 of the connecting elements 22, while the spring means 26 is biased and tends to push the second holding unit 17 downwards away from the first holding unit 11. A workpiece 2 can now be inserted under the second The screw rod 9 is then rotated under the action of the output shaft 5 of the drive motor in a first direction of rotation, whereby the screw rod 9 is rotated relative to the nut 10 and thereby caused to move together with the drive motor 3, the connecting elements 22, the nail drive means 6 and the the second holding unit 17 vertically downwards relative to the first holding unit 11. The second holding unit 17 is included in this downward movement until it comes into abutment against the workpiece 2, as illustrated in Fig. 4b. The second holding unit 17 is now held in abutment against the workpiece 2 under the action of the spring member 26. With the continued rotation of the screw rod 9 in the current direction of rotation, the screw rod 9 will move together with the drive motor 3, the connecting elements 22 and the nail drive means 6 vertically downwards relative to the the second holding unit 17, whereby the elongate portion of the nail drive means 10 15 20 25 30 12 16 is displaced downwards in the guide groove 18 and pushes a nail 7 received in the guide groove out of the guide groove and into the workpiece 2, as illustrated in Fig. 4c. The nail drive means 6 has now reached its lower position and the drive motor 3 is reversed under the action of the sensor 29 and the above-mentioned control unit so that the screw rod 9 is rotated in a second direction of rotation opposite to the above-mentioned first direction of rotation.
    As a result, the screw rod 9 is caused to move together with the drive motor 3, the connecting elements 22 and the nail drive means 6 vertically upwards relative to the second holding unit 17 until the stops 23 of the connecting elements 22 abut against the corresponding stops 24 of the second holding unit. 17. The elongate portion 16 of the nail drive means has now reached an upper position in the guide groove 18 and leaves space in the guide groove for feeding a new nail 7 therein. During the continued rotation of the screw rod 9 in the current direction of rotation, the second holder unit 17 will be lifted from the workpiece 2 by the connecting elements 22 so that the workpiece can be fed a desired distance relative to the second holder unit 17. The drive motor 3 can then be reversed and the above described process is repeated to drive a new nail into the workpiece. The machine 1 'according to Figs. 5 and 6 operates in a corresponding manner, with the differences that in this case it is the nut 10 and not the screw rod 9 which is rotated by the drive motor 3 and that the drive motor remains stationary and is not displaced together with the screw rod 9 during nail drive. - the race.
    The invention is of course in no way limited to the embodiments described above, but a number of possibilities for modifications thereof should be obvious to a person skilled in the art, without this for that reason deviating from the basic idea of the invention as defined in the appended claims. .
    权利要求:
    Claims (1)
    [1]
    A patent for driving nails into workpieces, which machine (1, 10 15 20 25 30 35 1 ') comprises: - a reversible drive motor (3) with an output shaft (5), - an axially displaceable nail drive means (6), which is intended to be pressed against a nail to drive the nail into a workpiece, and - a motion conversion mechanism (8) for converting a rotational movement of the output shaft (5) of the drive motor into an axial translational movement of the nail drive means ( 6), this movement conversion mechanism (8) comprising a screw rod (9) and a nut (10) cooperating with the screw rod, characterized in that: - that the nut (10) is arranged in a holder unit (11), hereinafter referred to as the first holder unit, wherein the nut (10) is axially fixed in this holding unit (11) so that the nut is prevented from displacing in axial drawing by a mutual rotation between the screw rod (9) and the nut and so that the screw rod is caused to be displaced relative to the nut (10). ) and this holding unit (11) in the axial direction when the screw rod and the nut are subjected to a mutual rotation under the action of the drive motor (3), and - that the nail drive means (6) is connected to the screw rod (9) to be displaced together with it in the axial direction when the screw rod (9) and the nut (10) under the action of the drive motor (3) is subjected to a mutual rotation. . Machine according to claim 1, characterized in that the machine (1, 1 ') comprises a second holding unit (17), which has a guide groove (18) for receiving a nail, the nail drive means (6) being slidably received in this guide groove. (18) to be displaced downwards therein and to push a nail received in the guide groove out of the guide groove and into a workpiece when the screw rod (9) and the nut (10) are subjected to a relative rotation in a first rotation under the action of the drive motor (3). direction. Machine according to claim 2, characterized in that the machine (1, 1 ') comprises a support member (20) arranged above the first holding unit (11), which is connected to the screw rod (9). ) to be displaced together with it when the screw rod (9) and the nut (10) are subjected to a mutual rotation under the action of the drive motor (3), - that the second holding unit (17) is connected to the support member (20) via one or more elongate connecting elements (22), the respective connecting elements (22) extending along the screw rod (9) and being supported by the support member (20) and slidably mounted at the second holding unit (17), - that the respective connecting elements (22) at their lower end has a shoulder (23) which is arranged for engagement with a corresponding shoulder (24) of the second holder unit (17), - that the respective connecting element (22) is displaceable downwards relative to the second holder unit (17) when the second holder unit (17) is in an immersed position in abutment against a workpiece and the screw rod (9) and the nut (10) under the action of the drive motor (3) are subjected to a mutual rotation in said first direction, and - that the second holding unit (17), while being supported by said connecting element (22) via said shoulders (23, 24), is displaceable upwards in the direction of the first holding unit (11) from said lowered position to a raised position when the screw rod (9) and the nut (10) under the action of the drive motor (3 ) is subjected to a mutual rotation in a second direction. . Machine according to claim 3, characterized in that the machine (1, 1 ') comprises a spring means (26) acting between the first holding unit (11) and the second holding unit (17), against the action of which the second holding unit (17) is displaceable in direction of the first holding unit (11). . Machine according to Claim 3 or 4, characterized in that the respective connecting elements (22) are slidably mounted at the first holder unit (11). Machine according to Claim 8, 6. Machine according to one of Claims 3 to 5, characterized in that the respective connecting element (22) consists of a rod. . Machine according to claim 6, characterized in that the machine (1, 1 ') comprises two such connecting elements (22) arranged parallel to each other on opposite sides of the screw rod (9). . Machine according to one of Claims 1 to 7, characterized in that: - that the screw rod (9) is connected to the output shaft (5) of the drive motor in order to be rotated therefrom, and - that the nut (10) is arranged rotatably in the first holder unit ( 11) so that the screw rod (9) is caused to move relative to the nut and the first holding unit in the axial direction together with the drive motor (3) when the screw rod is rotated relative to the nut (10) under the action of the drive motor. characterized in that the nail drive means (6) is rotatably mounted at the lower end of the screw rod (9). Machine according to claim 8 or 9 in combination with claim 3, characterized in that the screw rod (9) is rotatably mounted at the support member (20). Machine according to one of Claims 1 to 7, characterized in that: - the nut (10) is rotatably mounted in the first holder unit (11) and is connected to the output shaft (5) of the drive motor for being rotated therefrom, and - that the screw rod (9) is rotatably arranged so that the screw rod is displaced relative to the nut (10) and the first holding unit (11) in the axial direction when the nut is rotated relative to the screw rod under the action of the drive motor (3). Machine according to claim 11 in combination with claim 3, characterized in that the screw rod (9) is rotatably connected to the support member (20). Machine according to one of Claims 1 to 12, characterized in that the machine (1, 1 ') comprises a sensor (29), preferably in the form of an inductive sensor, for sensing a lower position of the nail drive means (6). and an electronic control unit connected to this sensor (29), the control unit being arranged to reverse the drive motor (3) when it receives from the sensor (29) a signal indicating that the nail drive means (6) has reached this lower position. A machine according to claim 13, characterized in that the sensor (29) is attached to the second holding unit (17) and adjustable in different vertical positions thereon to thereby allow an adjustment of the lower turning position of the nail drive means. Machine according to one of Claims 1 to 14, characterized in that the screw rod (9) is a ball screw and the nut (10) a ball nut.
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    同族专利:
    公开号 | 公开日
    EP2383085A1|2011-11-02|
    SE535333C2|2012-07-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1574490A|1924-12-04|1926-02-23|Hervey R Kumler|Box-nailling machine|
    US2799871A|1955-02-07|1957-07-23|Stud Drive Inc|Stud driving and hole tapping machine|
    US3982678A|1975-02-14|1976-09-28|Olson Jerome A|Nail driving apparatus|
    DE3333427C2|1983-09-16|1991-05-08|Karl M. Reich Maschinenfabrik Gmbh, 7440 Nuertingen, De|
    US4782726A|1987-01-13|1988-11-08|Ryder Internation Corporation|Lead screw driver|
    JPH1176519A|1998-06-29|1999-03-23|Heiwa Corp|Nail driving device for game board|CN106799587B|2017-01-10|2018-12-14|深圳鼎缘电子科技有限公司|It rotates debugging mechanism and debugs board automatically|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1000438A|SE535333C2|2010-04-30|2010-04-30|Machine for driving nails into workpieces|SE1000438A| SE535333C2|2010-04-30|2010-04-30|Machine for driving nails into workpieces|
    EP11163634A| EP2383085A1|2010-04-30|2011-04-26|Machine for driving fastening members into workpieces|
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