• 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:
    ABSTRACT A hand operated crimping tool (2) comprising a tool body (4), two movably arranged handles (6, 8), and at least three crimping dies (lO, l2, l4, l6), each having respective crimping surfaces (l8, 20, 22, 24) together enclosing a crimp opening (26) (28) arranged toreceive a workpiece to be crimped. Each of the crimping diesis arranged between two guide elements 36, 38) (38, 32; 32, 34; 34, 36; and has a respective cam surface (74, 76, 78, 80) and a respective stop surface (82, 84, 86, 88), where the respective cam surface is arranged to cooperate with a guide surface (83, 85, 87, 89) on one of the guide elements and the respective stop surface is arranged. to cooperate with. a guide surface on the other one of the guide elements, thus guiding the movement of therespective crimping die when the crimping dies are moved relativeto the body (4) of the crimping tool (22). (Fig. l)
    公开号:SE1400271A1
    申请号:SE1400271
    申请日:2014-05-28
    公开日:2015-11-29
    发明作者:Daniel Ullbors；Niklas Jonasson
    申请人:Pressmaster Ab；
    IPC主号:
    专利说明:

    US 6,176,116 B1 discloses a hand-operated crimping tool with crimping jaws which are pivotally mounted and axially fixed to the crimping tool body, i.e. the pivot points of the crimping jaws are fixed in relation to the tool body. An elastic element is arranged attached to a handle for force compensation at high compressive forces.
    EP 1 820 607 A2 discloses a hand-operated crimping tool with crimping jaws with pivot points arranged movable relative to the crimping tool body. An elastic element is arranged pivotally attached to a handle for force compensation at high compressive forces.
    EP 0 158 611 A2 discloses a hand-operated crimping tool with a groove in which a pin, which is attached to a link device, is arranged to move against a spring force.
    BRIEF DESCRIPTION OF THE INVENTION The primary object of the present invention is to provide a hand-operated crimping tool with improved control of the movement of the crimping jaws relative to the body of the tool. An object of the present invention is also to provide an improved crimping jaw for a crimping tool.
    The above-mentioned object is achieved in a device with the features stated in claims 1 and 11, respectively.
    These and other advantageous features will become apparent from the following detailed description.
    The invention will now be described in more detail below with reference to the accompanying drawings which illustrate preferred embodiments of the device according to the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS Figure 15 schematically shows a side view of a crimping tool according to the invention in an open position, i.e. before the crimping stroke, Figure 2 schematically shows a side section of a crimping tool according to Figure 1 in an open position, showing four crimping jaws and four control elements, Figure 3 shows the four crimping jaws and the four control elements, shown in Figure 2, in an enlarged view in a partially closed position, and Figure 4 schematically shows a side view of the crimping tool according to Figure 2 in a partially closed position, i.e. during the shrinkage.
    DESCRIPTION OF PREFERRED EMBODIMENTS The same reference numerals are used for similar features in the various drawings.
    Figure 1 schematically shows a side view of a hand-operated crimping tool 2 according to the invention in an open position, i.e. before the shrinkage. The parts of the tool 2, which are hidden by other parts, are shown with dashed lines for a better understanding of how the tool works. The hand-operated crimping tool 2 comprises a tool body 4 and two handles 6, 8, which handles 6, 8 are movably arranged relative to each other, and further comprises at least three crimping jaws 10, 12, 14, 16, where each of the crimping jaws 10, 12, 14, 16 have a respective crimp surface 18, 20, 22, 24, where the crimp surfaces 18, 20, 22, 24 together enclose a crimp opening 26 arranged to receive a workpiece 28 to be crimped during the crimping operation.
    The crimping jaws 10, 12, 14, 16 have pivot points (see figure 2) which are arranged movable relative to the body 4 of the crimping tool 2, where the relative movement of the tool handles 6, 8 is connected to the relative movement of the crimping jaws 10, 12, 14, 16 in that a link device 30 is arranged to control the movement of the pivot points of the crimping jaws 10, 12, 14, 16 (see figure 2) in relation to the body 4 of the crimping tool 2, when the tool handles 6, 8 are displaced in relation to each other. Each of the crimping jaws 10, 20, 14, 16 is further arranged between two guide elements 38, 32; 32, 34; 34, 36; 36, 38; arranged on the body 4 of the crimping tool 2 and furthermore has a respective cam surface (see figure 2) and a respective stop surface (see figure 2), where the respective cam surface (see figure 2) is arranged to cooperate with a guide surface (see figure 2) on a of the guide elements 38, 32; 32, 34; 34, 36; 36, 38 ;, and the respective stop surface (see figure 2) is arranged to cooperate with a guide surface (see figure 2) on the other of the guide elements 38, 32; 32, 34; 34, 36; 36, 38 ;, thus controlling the movement of the respective crimping jaw 10, 12, 14, 16 when the pivot points of the crimping jaws 10, 12, 14, 16 (see figure 2) are displaced in relation to the body 4 of the crimping tool 2.
    Figure 2 schematically shows a side section of a crimping tool according to figure 1 in an open position, which shows four crimping jaws 10, 12, 14, 16 and four control elements 32, 34, 36, 38.
    The figure further shows the link device 30 which is arranged to control the movement of the pivot points 42, 44, 46, 48 for the crimping jaws 10, 12, 14, 16, which link device 30 in this embodiment comprises a guide plate 40 arranged to be able to pivot around the control elements 32 , 34, 36, 38 and where the pivot points 42, 44, 46, 48 for the crimping jaws 10, 12, 14, 16 are arranged on the guide plate 40, the pivot points 42, 44, 46, 48 thus being arranged movable relative to the body of the crimping tool 2 4, and further comprises a linkage mechanism 50. The crimp jaws 10, 12, 14, 16 are pivotally mounted and axially fixed, near their respective ends, on the guide plate 40. The guide plate 40 is in turn moved by means of the linkage mechanism 50 comprising a movable handle 8 and a link arm 52 which are pivotally connected, as can be seen in the figure at respective pivot points 54, 56, 58. In this embodiment the second handle 6 is arranged as a stationary handle constituting a d electricity of the tool body 4, e.g. integrated in the tool body 4. To allow large pressing forces without destroying the link mechanism 50, the link arm 52 is attached to the stationary handle 6 using a pin 60 arranged to be guided along a groove 62 in the stationary handle 6 where a spring element 64 is arranged to pushing the pin 60 against the end of the groove 62 located closer to the tool head 66 and where the link arm 52 is arranged to push the pin 60 away from this end of the groove 62 against the force of the spring element 64, when the handles 6, 8 are forced against each other. This can e.g. be the case at the end of the crimping operation when the workpiece (see Figure 1) to be crimped can no longer decrease in cross-sectional area. A rotating sleeve 72 may be provided on the pin 60 to reduce friction between the pin 60 and the spring member 64. The spring member 64 is preferably arranged attached to the stationary handle 6 as shown in the figure, e.g. using pins 68, 70. The spring member 64 and the groove 62 are optional, but without them the linkage device 30 will have a shorter life due to large forces exerted thereon.
    The figure also shows a preferred way of achieving an automatic return movement of the tool handles 6, 8 after the crimping operation, where here a return spring 39 is arranged to press the guide plate 40 against an end position against an end stop member 41 arranged on the tool body 4 thus returning the tool to the open position. the tool handles 6, 8 are not affected, which return movement is effected in this embodiment by means of the return spring 39 acting on a crimping jaw 16, which is pivotally arranged on the guide plate 40.
    Figure 3 shows the four crimping jaws 10, 12, 14, 16 with their respective crimping surfaces 18, 20, 22, 24, four guide elements 32, 34, 36, 38 and the guide plate 40 shown in figure 2 in an enlarged view in a partially closed position , i.e. during the shrinkage. The crimp surfaces 18, 20, 22, 24 together enclose a crimp opening 26 arranged to receive a workpiece 28 to be crimped during the crimping operation. Each of the crimping jaws 10, 12, 14, 16 is further arranged between two of the guide elements 38, 32; 32, 34; 34, 36; 36, 38; arranged on the body of the crimping tool (not shown) and further has a respective cam surface 74, 76, 78, 80 and a respective stop surface 82, 84, 86, 88, where the respective cam surface 74, 76, 78, 80 is arranged to cooperate with a guide surface 83, 85, 87, 89 on one of the guide elements 38, 32; 32, 34; 34, 36; 36, 38; and the respective stop surface 82, 84, 86, 88 is arranged to cooperate with a guide surface 83, 85, 87, 89 on the other of the guide elements 38, 32; 32, 34; 34, 36; 36, 38 ;, thus controlling the movement of the respective crimp jaw 10, 12, 14, 16, when the pivot points 42, 44, 46, 48 of the crimp jaws 10, 12, 14, 16 are displaced relative to the body (not shown) of the crimping tool. The respective cam surface 74, 76, 78, 80 preferably comprises two sections, a section 90, 92, 94, 96 arranged to enable a large crimp opening 26 in the open position of the tool (see Figure 4), and a section 98, 100, 102, 104 against which the guide surface 83, 85, 87, 89 of the respective guide elements 32, 34, 36, 38 are arranged to abut during the crimping operation, i.e. as shown in Figure 3. All the respective sections 90, 92, 94, 96, 98, 100, 102, 104 of the respective cam surface 74, 76, 78, 80 are preferably arranged curved in the same direction as the respective guide surface 83, 85. , 87, 89 of the respective control element 32, 34, 36, 38, i.e. arranged as circular arcs. The respective sections 98, 100, 102, 104 against which the guide surface 83, 85, 87, 89 of the respective guide element 32, 34, 36, 38 are arranged to abut during the crimping operation can also optionally be straight. Upon crimping, the respective cam surface 74, 76, 78, 80 moves along the respective guide surface 83, 85, 87, 89 and abuts thereon at least during the crimping operation.
    The control elements 32, 34, 36, 38 can e.g. consist of pins or optionally comprise pins 106, 108, 110, 112 with rotating rollers 114, 116, 118, 120 arranged thereon, which enables less friction between the guide elements 32, 34, 36, 38 and the crimping jaws 10, 12, 14, 16. All guide elements 32, 34, 36, 38 may have substantially the same outer diameter, which gives a substantially square crimp opening 26. Optionally, the guide elements 32, 34, 36, 38 may have more than one outer diameter, if e.g. four guide elements 32, 34, 36, 38 are arranged and where two opposite guide elements 32, 36 have an outer diameter and two other also opposite guide elements 34, 38 have a different outer diameter, the crimp opening can be rectangular but not square. If rollers are provided, it is possible to replace them with rollers having a different outer diameter, thus adjusting the size of the crimp opening 26.
    Figure 4 schematically shows a side section of the crimping tool 2 according to figure 2 in a partially closed position, i.e. during the shrinkage.
    The crimping tool 2 operates as follows: First, a workpiece 28, which is to be crimped, such as a connector or a similar device, is inserted into the opening 26 delimited by the crimping jaws 10, 12, 14, 16.
    After the insertion of the workpiece 28, the crimping tool 2 is actuated by slowly pressing the handles 6,8 against each other, whereby the crimping jaws 10, 12, 14, 16 are caused to move slightly towards each other thereby coming into contact with and exerting a pressure on the workpiece 28 to be crimped, so that the workpiece 28 to be crimped is held in place without being deformed. This allows easy insertion of a cable 122, e.g. a peeled part of a conduit, into the workpiece 28 to be crimped.
    Now see Figures 1 to 4: When the workpiece 28 and the cable 122 are aligned in a satisfactory manner, the handles 6,8 are pressed further against each other, which causes the crimping jaws 10, 12, 14, 16 to move towards each other. The respective guide surface 83, 85, 87, 89 of the respective guide element 32, 34, 36, 38 has now moved from the first section 90, 92, 94, 96 of the respective cam surface 74, 76, 78, 80 to a second section 98, 100, 102, 104 thereof, when the handles 6,8 are brought together to a position where the workpiece 28 is engaged with the crimping jaws 10, 12, 14, 16.
    When the handles 6,8 are brought further against each other, this results in a crimped joint, in this embodiment with a square cross-section, with the workpiece 28 crimped around the cable 122. The spring element 64 is slightly elastically deformed when the handles 6, 8 are brought further against each other, whereby it thus acts as a spring balancing the forces between the handles 6,8 and the crimping jaws 10, 12, 14, 16 to compensate for different dimensions of the workpiece 28, which are within the range of permissible cross-sectional dimensions of the workpiece 28. Optionally, the crimping tool comprises a well known not shown adjusting mechanism arranged at the pivot point "54", which adjusting mechanism comprises an eccentric element, which when rotated about the pivot point "54" changes the relative position between the handle 8 and the guide plate 40 at the pivot point "54", thus in turn changing the range of dimensions of the crimp opening 26, this enabling a larger int obtaining permissible cross-sectional dimensions of the workpiece 28, e.g. changes the shrinkage interval from a first interval of e.g. 0.1-6mm2 to another shrinkage interval of e.g. about 10-16mm2, where the eccentric element can be held in position by means of a spring-loaded locking mechanism.
    As shown in Figure 4, the return spring 39 is moved by the crimping jaw 16, which is pivotally mounted on the guide plate 40, and the guide plate 40 is moved away from the open end position 10 and the end stop member 41 arranged on the tool body 4, when the tool handles 6, 8 are actuated by pressing them against each other.
    Finally, the handles 6,8 are released, which allows movement of the crimping jaws 10, 12, 14, 16 from each other thereby enabling removal of the crimped connector 28 from the crimping tool 2.
    The crimp jaws 10, 12, 14, 16 are preferably made of a number of thin metal plates, i.e. that the respective crimping jaws 10, 12, 14, 16 comprise a number of thin metal plates, which enables the formation of the plates by punching and subsequent assembly of a number of plates together to form a crimping jaw 10, 12, 14, 16, which lowers the manufacturing costs and at the same time manufacturing accuracy.
    权利要求:
    Claims (11)
    [1]
    1. 0 15 20 25 30 PATENT REQUIREMENTS: 1.
    [2]
    Hand-operated crimping tool (2) comprising a tool body (4) and two handles (6, 8), which handles (6, 8) are movably arranged relative to each other, and further comprising at least three crimping jaws (10, 12, 14, 16), where each of the crimping jaws (10, 12, 14, 16) has a respective crimping surface (18, 20, 22, 24), where the crimping surfaces (18, 20, 22, 24) together enclose a crimping opening (26) arranged to receive a workpiece (28) to be crimped, wherein the crimping jaws (10, 12, 14, 16) have pivot points (42, 44, 46, 48) which are arranged movable relative to the body of the crimping tool (2) (4), where the relative movement of the tool handles (6, 8) is connected to the relative movement of the crimping jaws (10, 12, 14, 16) in that a link device (30) is arranged to control the movement of the pivot points (42, 44, 46, 48). ) for the crimping jaws (10, 12, 14, 16) in relation to the body (4) of the crimping tool (2) when the tool handles (6, 8) are superimposed in relation to each other, feel characterized in that each crimp jaw (10, 12, 14, 16) is further arranged between two guide elements (38, 32; 32, 34; 34, 36; 36, 38;) arranged on the body (4) of the crimping tool (2) and further have a respective cam surface (74, 76, 78, 80) and a respective stop surface (82, 84, 86, 88), where the respective cam surface (74 , 76, 78, 80) are arranged to cooperate with a guide surface (83, 85, 87, 89) on one of the guide elements (38, 32; 32, 34; 34, 36; 36, 38;), and the respective stop surface (82, 84, 86, 88) is arranged to cooperate with a guide surface (83, 85, 87, 89) on the other of the guide elements (38, 32; 32, 34; 34, 36; 36, 38;), thus controlling the movement of the respective crimping jaw (10, 12, 14, 16) when the pivot points (42, 44, 46, 48) of the crimping jaws (10, 12, 14, 16) are flattened relative to the body (4) of the crimping tool (2) . .
    [3]
    Shrinking tool (2) according to claim 1, characterized in that the link device (30) comprises a guide plate (40) arranged to be able to rotate around the guide elements (32, 34, 36, 38) and further comprising a link mechanism (50) , and that the pivot points (42, 44, 46, 48) of the crimping jaws (10, 12, 14, 16) are arranged on the guide plate (40). 10 15 20 25 30 10.
    [4]
    Crimping tool (2) according to claim 2, characterized in that a handle (6) is arranged as a stationary handle integrated in the tool body (4), and that a link arm (52) is attached to the stationary handle (6) using a pin (60) arranged to be guided along a groove (62) in the stationary handle (6), where a spring element (64) is arranged to press the pin (60) against the end of the groove (62) located closer to the tool head (66), and wherein the link arm (52) is arranged to push the pin (60) away from this end of the groove (62) against the force of the spring element (64) when the handles (6, 8) are forced against each other. .
    [5]
    Crimping tool (2) according to claim 3, characterized in that a rotating sleeve (72) is arranged on the pin (60) to reduce friction between the pin (60) and the spring element (64). Crimping tool (2) according to one of Claims 2 to 4, characterized in that the crimping jaws (10, 12, 14, 16) are pivotally mounted and axially stationary, near their respective ends, on the guide plate (40). .
    [6]
    Crimping tool (2) according to one of Claims 1 to 5, characterized in that the respective cam surface (74, 76, 78, 80) comprises two sections, one section (90, 92, 94, 96) being arranged to enable a large crimp opening (26) in the open position of the tool and a section (98, 100, 102, 104) against which the guide surface (83, 85, 87, 89) of the respective guide element (32, 34, 36, 38) is arranged to abut during the crimping operation. .
    [7]
    Crimping tool (2) according to claim 6, characterized in that the respective sections (90, 92, 94, 96, 98, 100, 102, 104) of the respective cam surface (74, 76, 78, 80) are arranged curved in the same direction as the respective guide surface (83, 85, 87, 89) of the respective guide element (32, 34, 36, 38). .
    [8]
    Crimping tool (2) according to one of Claims 1 to 7, characterized in that the guide elements (32, 34, 36, 38) comprise pins (106, 108, 110, 112) with rotating rollers (114, 116, 118 arranged thereon). 120). .
    [9]
    Crimping tool (2) according to claim 8, characterized in that all the guide elements (32, 34, 36, 38) 11 have substantially the same outer diameter.
    [10]
    Crimping tool (2) according to claim 8, characterized in that four guide elements (32, 34, 36, 38) are arranged, where two opposite guide elements (32, 36) have an outer diameter and two other also opposite guide elements (34, 38) has a different outer diameter.
    [11]
    Crimping jaw for crimping tools according to one of Claims 1 to 10, characterized in that the respective crimping jaw (10, 12, 14, 16) comprises a number of thin metal plates.
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    引用文献:
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    SE529618C2|2006-02-21|2007-10-09|Pressmaster Ab|Crimping tool link|
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    CN111022451A|2019-11-22|2020-04-17|上海威克鲍尔通信科技有限公司|Cam crimping device for micro parts|
    CN111403980A|2020-04-28|2020-07-10|浙江华胜工具有限公司|Self-adaptive labor-saving wire crimping pliers|
    USD901271S1|2020-07-23|2020-11-10|Shenzhenshi Qinbaokeji Youxiangongsi|Crimping tool|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1400271A|SE539135C2|2014-05-28|2014-05-28|Crimping tool and crimp back|SE1400271A| SE539135C2|2014-05-28|2014-05-28|Crimping tool and crimp back|
    EP15168698.7A| EP2949429B1|2014-05-28|2015-05-21|Crimping tool and crimping die|
    US14/718,193| US9381631B2|2014-05-28|2015-05-21|Crimping tool and crimping die|
    JP2015108546A| JP6224650B2|2014-05-28|2015-05-28|Crimping tool and crimping die|
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