• 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:
    The intention is to prevent, by means of the knife-sharpening unit, the knife blade from being able to pivot relative to the sharpening device. For this purpose, a carrier (4) is articulated to the main body of the sharpening unit. A sharpening device (5) is articulated, in front of the carrier pivot pin (13), to a front portion of the carrier (4) and rests freely against the upper side (22) of the carrier (4). A reaction member (6) is articulated on the main body such that it extends over at least part of the upper side (22) of the carrier (4). The reaction member (6) has a front (49) and a rear (51) reaction portion which are arranged respectively in front of and behind the carrier pivot pin (13). These reaction portions (49, 51) are located in each case opposite the upper side (22) of the carrier, and the pivot pin (44) of the reaction member (6) runs approximately parallel to the carrier pivot pin (13) and is arranged behind the rear reaction portion (51). Prestressing means (54) prestress the carrier (4) and the reaction member (6) about their pivot points (13 and 44, respectively) in order to counteract separation between the front part of the carrier (4) and the front reaction portion (49). The knife-sharpening unit can be used, in particular, in the form of a knife sheath. <IMAGE>
    公开号:SU751315A3
    申请号:SU762427096
    申请日:1976-12-03
    公开日:1980-07-23
    发明作者:Кингсли Бейли Питер
    申请人:Вилтшир Катлери Ко.Пти.Лтд. (Фирма)；
    IPC主号:
    专利说明:

    (54) DEVICE FOR SHARPENING BLADES The invention relates to a device for sharpening a knife blade and, in particular, to such devices in which the knife blade is placed in a sheath or in a protective casing. A device for sharpening knives, in the casing of which is complete. the hole at the front end carrying the spring-loaded rotary carriage, on which the tool is fastened with the ability to rotate the grinding tools, while the carriage is installed with the ability to interact with the rotary lever y. . However, on this device it is impossible to ensure the maintenance of correct contact between the knife and the retractor tool, which violates the smoothness of the sharpening operation and: reduces its quality. The purpose of the invention is to improve the quality of sharpening knives. For this, in the proposed device, the carriage is made in the form of a double lever, at the front end of which is mounted the tooling tools, with the axis of rotation of the carriage mounted between the axes of rotation of the lever and sharpening tool, the lever being made one-arm and connected to the carriage by a spring. Figure 1 shows the described device, the plan; FIG. 2 is a section A-A in FIG. in FIG. 3 a knife blade inserted into a casing; in Fig „4 i-section bb in Fig 1; FIG. 5 shows a knife blade in contact with a sharpening device; in fig. 6 is a section B-B in FIG. 5; in fig. 7 is a section G-D in FIG. five; in fig. 8 - carriage, plan; in fig. 9 is a section DD in FIG. 8; FIGS. 10-12 are section E-E, MF, and AND in FIG. 9f in FIG. 13 - part of the carriage with the holder shifted to the inoperative position; in fig. 14-18 - schemes of various reactions and lines of action of forces at various points of the sharpening operation on this device. . The device is installed in the casing 1 with a cavity 2, carrying a rotary empty carriage 3 of oblong shape (Fig. 2 and 3) with a sharpening unit 4 (Fig. 5 and .6). On the casing 1 there is a rotary lever 5, which is in contact with the carriage 3 and the knife 6, which is placed between the side 7, the upper walls In and the base 9 of the casing 1, made with a hole 10 at the front end. Carriage 3 and
    Obs b are located in the cavity 2 of the casing. The carriage 3 is connected to the casing 1 through the sy 11 of the side walls 7 (Fig.3.5 and 7) of the obesity 1 and the holes 12 made in the walls of the carriage 3. The upper bearing surfaces. The surfaces 13 of the holes 12 can be bent or flat, whether the carriage 3 is mounted on an axle 11, the contact with which is maintained by a SPRING connection, carried out, for example, by a flat spring 14 (Fig. 9). If the spring 14 consists of two halves formed in the walls of the carriage 3, then the space for the knife 6 is freed. The surfaces 15 of each flat spring 14 form the leading grooves 16 on each side of the carriage 3, which serve as guides when the carriage 3 is inserted inside the casing. Such a carriage 3 can be locked in its working position and at the same time easily released.
    On the carriage 3, a rotatable holder 17 (Fig. 8) is installed, located at the opening 10, protruding with its ends from the casing 1.
    The sharpening unit is also mounted at the hole, which allows turning the holder 17, as shown in FIG. 8, to service beyond the fixing unit 4i without removing the carriage from the casing 1 .:
    The rotation of the holder 17 is bounded by the walls of the Y-shaped recess 18 located below the surface 19. The grinding unit 4 is turned with a tool towards the surface 18 and is located in a slot 20 running along the whole carriage 3. The side surfaces of the slot 20 and noBejJxHOCTb 21 (Fig. 9) are directed limiting the movement of the knife b.
    Section 22 of the carriage 3 for the sharpening unit is spring-loaded and in contact with the cutting edge of the blade 23.
    The holder 17 is attached to the housing of the insert 3 through the connection 24. Section 25 of the carriage passes into the surface 19 and has a slot 20. It is desirable that in the working position section 25 covers the sharpening unit 4.
    The swivel joint 24 of the holder should be positioned at the rear end of section 25, then the holder 17 can take the position shown in FIG. 13, with respect to the cavity 26 of the carriage 3.
    It is advisable to limit the rotation of the grinding device by means of spikes 27 installed in the cavity 26. The sharpening unit 4 is pressed by the spring 28. The flat spring 28 is integral with the detail of the grinding unit 4, it creates only one-sided load, which ensures the rotation of the grinding unit 4, and selects the gap in the joint 29 (fig. - b, 9 and 11). In addition, this design makes it easy to remove chips that have accumulated during grinding.
    FIG. 2, 9, and 11 show the extreme positions of the grinding unit 4, limited by the projections 27.; The load is created by the supports 30 and 31 respectively located on the walls 32 and 33 of the carriage 3, in which the grinding block 4 is installed. The carriage 3, made of various materials, in particular plastic, is structurally simple and can consist of two easily assembled halves.
    The lever 5 is installed between the upper wall of the carriage 3 and the surface 18 and is connected to the casing 1 through an axis of rotation located at the upper wall of the casing near the rear end of the carriage 3. Structurally, such a connection may have a different design. So, in this device it is made in the form of a cylindrical element 34 of the lever 5 held
    0 snaps in the hollows of the 35 side walls, 7
    Such a structure makes it easy to remove the lever 5 from the casing 1. In cross section, the lever 5 has the shape
    5 rotated-grooves with the upper 36 and 37 side walls, respectively (see Fig. 6 and 7).
    The contact area-38 of the front end of the upper wall 36 of section 39 with section 25 is preferably positioned in front of the grinding unit 4, and the contact area of the section 39 of the upper wall 36 of the lever 5 above the grinding grinding unit 4. In addition, there is another contact area between the cylindrical element 34 and the axis 11 of the carriage formed by the protrusions 40 of the lever 5, interacting with the surface 19 (Fig. 4). The swivel connection of the element 34 and the depression 35 is located behind the zones
    0 contact section 39 and protrusions 40, this ensures good operation of the sharpening device due to the optimal ratio of the acting forces.
    5 The front end of the lever 5, swinging relative to the base 9 of the casing 1, provides the entry of the blade of the knife 6. inside the casing 1 to the same depth. When the casing 1 is closed (Fig. 2 and 4),
    0, section 39 is in contact with section 27 in front of axis 11. In any case, there is at least one contact point between lever 5 and carriage 3, preferably this is a zone
    protrusion 40.
    In the closed position of the casing 1
    The upper wall 36 of the lever 5 serves as a continuation of the upper wall 8 of the casing 1, despite the fact that the wall 36 can be tilted downward. From the front edge 41 of the casing wall 8, as shown in FIG. 2. The front edge 41 of the upper wall 8 is advisable to be positioned somewhat behind the front edge of each side wall 7, so that a gap 42 is formed (Fig. 1),
    in which the lever 5 can be rotated. In this case, the walls 37 of the lever 5 are lower than the edges of the side walls 7, which ensures full coverage of the blade of the knife. B.
    A flat or round spring is positioned in the device so that it acts on the lever 5. Before connecting 34, 35 towards the base 9. The spring can be made of two halves, which act independently of one another on the carriage 3 and the lever 5, and hold closed as shown in FIG. 2
    It is better if the spring 43 acts simultaneously on the lever 5 and the carriage 3, in which case it has a Y-shaped appearance. If necessary, with each storna carriage 3 can be installed on one such spring.
    The spring 43 contains two legs 44 and 45 connected by a curved section 46, which in the operating position of the spring 43 is located in the cavity of the casing 1 behind the carriage 3 and the lever 5, and the two legs 44 and 45 are directed to the beginning of the cavity 2 (Fig. 5). The end 47 of the leg 44 touches the carriage 3 under the sharpening unit 4, and the front end 48 of the leg 45 touches the lever 5 above the sharpening unit 4 near section 39. The spring separates the lever 5 from the carriage 3, so the lever turns down and the carriage goes up.
    The dimensions of the casing 1 must be such that the blade of the knife b completely enters it so that its blade is located behind the grinding unit 4, then the blade 23 is sharpened completely.
    In this position, the blade handle portion 49 can — be on the inclined body of the carriage 3 so that the blade remains high enough and therefore it can be easily brought out through the grinding unit 4. During the last step of inserting the blade into the blade cover 1, the blade gradually rises, providing sharpening curvilinear pc 5; 0,
    At the first stage of insertion of the knife b into the casing 1, the upper edge 51 enters into the eon of the contact 38 of the lever 5 almost simultaneously with the cutting edge 23. The upper edge 51 contacts the protrusion 4O, and the cutting edge 23 contacts the sharpening unit 4 (Fig. 14) .
    At this stage, the spring force S prevents the separation of the lever 5 and the carriage 3, the rotation of which relative to the axis 11 is prevented by the reaction of Cd and RjB to the contact areas of the carriage 3 and the lever 5. With further insertion of the blade b casing 1, the front end of the carriage 3 turns about the axis 11 by forces applied to the sharpening unit 4, and the top edge 151 is in contact with the region of
    39 levers 5 (Fig. 15). At the same time, the front end of the lever 5 is rotated relative to the cylindrical element 34 by forces arising in the contact zone of the portion 39 and the edge 5 of the blade. The protrusion 40 of the lever 5 is in contact with the carriage 3 and, therefore, holds the carriage 3 in the desired position relative to the knife b.
    In the construction shown in the drawings, the continuous movement of the knife 6 into the casing 1 results in the cutting edge 23 of the blade interacting with the section 22 behind the grinding unit 4 so that the knife b has two points of contact with the carriage 3 on opposite sides of the axis 11 (see Fig. 1
    At this moment, the protrusion 40 of the lever 5 may not interact with the carriage 3, in this case the ground unit ensures a constant position of the cutting force. However, the opposite is possible.
    When the conditions shown in FIG. 16, the contact of the carriage 3 and the knife b will always be maintained, regardless of the position of the knife b in the casing 1. The force R ceases to exist, since the projection 40 is shared with the carriage 3, however the force R between the KNIFE b and the carriage 3 acts so that balances the forces acting on the other side of the axis 11.
    The relative position of the carriage 3 and the blade of the knife b is chosen so that the position of the cutting force is constant. Any change in the relative position of the carriage 3, the lever 5 and the grinding unit 4 when changing the configuration of the knife must ensure the position of the cutting force.
    FIG. Figures 17 and 18 show the knife b when it is inserted into the casing 1. The direction of force between the blade of the knife and the tool of the sharpening unit 4 is indicated by the line CR (Fig. 16-18). The angle formed by the CR line with the longitudinal axis of the knife will be constant, which ensures a small change in the resistance to sharpening during the entire operation. The CR I line (Fig. 18) is the direction of the cutting resistance force when removing the blade of the knife b from the housing 1. The angles, which are composed of the CR and CR J lines with the longitudinal axis of the knife, are equal.
    权利要求:
    Claims (1)
    [1]
    From what has been said, it follows that the action of the blade of the knife with the sharpening unit 4 is the same when entering it into the housing 1 and during the withdrawal, which is ensured by the presence of the two-point contact of the carriage 3: one of these points is the point of interaction of the carriage 3 with the knife b, and the other is with the lever 5. Formula of the invention 1 A device for sharpening knives, in the casing of which a hole is made at the front end, carrying a spring-loaded swivel carriage on which the sharpening tool is pivotally fixed, while the carriage is installed with Simultaneously with the rotation of the lever, characterized in that, in order to improve the quality of knife sharpening, the carriage is made in the form of a double-arm lever 7 f at the front end of which a sharpening tool is installed, while the axis of rotation of the karelia is installed between the axes of the lever's turn and the sharpening tool, moreover, the lever is made one-arm and is connected to the carriage by a spring. Sources of information taken into account in the examination 1. Application 2390156, cl. B 24 B 3/54, 1976, according to which the decision to grant a patent was made. T T
    I "/" j
    w
    "And it t / g / y / 1; /" fjr ...
    G- /
    J5
    W J7
    yy
    No.. |: L //////. ////////)U / 7 / / / / / / /. G. f L I - I I Uj ". U
    -
    ZS
    Phage.№
    “-
    ft ".//
    23
      Vttl / j
     T 1
     V
    l
    . .,: -, Vq
      S,.
    "City /
      f%
      7 j
    jff / w
    .
    -X
    f vt / tt
    / "Rf h, //
    4tf
    j
    H
    4-tf
    lA L-L-4v-V
    1 ii
    FIG. Is. at. H
     "./"
     , P. D
    Z9
    类似技术:
    公开号 | 公开日 | 专利标题
    SU751315A3|1980-07-23|Knife-grinding device
    US5692304A|1997-12-02|Locking device for folding tool
    EP0466294B1|1995-10-04|Improved portable circular saw
    US4796359A|1989-01-10|Electric shaving apparatus with a pivoted shearing head system
    US20020000043A1|2002-01-03|Power driven hair clipper
    JP2758880B2|1998-05-28|Dry shaving equipment
    US4261104A|1981-04-14|Holder for detachable blades
    US5404779A|1995-04-11|Saw table with compound movement of saw
    US5442855A|1995-08-22|Pocket knife with lockable blade
    US4282735A|1981-08-11|Brake for sheet metal or the like
    CA1038628A|1978-09-19|Knife sharpener
    CA2220390A1|1998-05-12|Chisels and scrapers with replaceable blades
    EP0209276A2|1987-01-21|Wiper arm
    PL183343B1|2002-06-28|Rasor blade assembly
    MXPA02006417A|2003-02-24|Table saw blade heel adjuster.
    US5074042A|1991-12-24|Shaver head with swivelling blade block
    US6334254B1|2002-01-01|Wide blade scraper
    CA2148267A1|1995-03-09|Utility knife with multi-purpose blade
    JPH05309511A|1993-11-22|Borehole cutting tool
    KR840006460A|1984-11-30|Polishing and Sheathing
    US4091691A|1978-05-30|Knife sharpener
    WO1991002629A1|1991-03-07|Blade block coupling for twin-headed razors
    US4087909A|1978-05-09|Dry shaver
    US4749311A|1988-06-07|Foot element and cooperable strut element for use in a roof support mechanism
    JP2000024887A|2000-01-25|Jig for grinding tool with sharp edge
    同族专利:
    公开号 | 公开日
    CA1046774A|1979-01-23|
    RO85077B|1984-11-30|
    SE417582B|1981-03-30|
    DK145331C|1983-03-21|
    HK47479A|1979-07-20|
    NZ182686A|1980-03-05|
    JPS5292994A|1977-08-04|
    NL183708B|1988-08-01|
    DD129144A5|1977-12-28|
    ES454224A1|1977-12-01|
    BG29128A3|1980-09-15|
    CH615613A5|1980-02-15|
    IN145641B|1978-11-25|
    IE44235L|1977-06-04|
    JPS6026665B2|1985-06-25|
    HU177925B|1982-01-28|
    SE7613623L|1977-06-05|
    RO85077A|1984-10-31|
    FR2333614B1|1982-05-28|
    LU76322A1|1977-06-09|
    BE849015A|1977-04-01|
    BR7608048A|1977-11-22|
    PL108751B1|1980-04-30|
    FI58271C|1981-01-12|
    DK145331B|1982-11-01|
    ZA767052B|1977-10-26|
    NL7613517A|1977-06-07|
    GB1532548A|1978-11-15|
    DK541476A|1977-06-05|
    GR61785B|1979-01-17|
    DE2653830A1|1977-06-08|
    DE2653830C2|1986-10-23|
    NL183708C|1989-01-02|
    AR211943A1|1978-04-14|
    FI58271B|1980-09-30|
    PH15479A|1983-01-27|
    IT1072127B|1985-04-10|
    FR2333614A1|1977-07-01|
    FI763441A|1977-06-05|
    IE44235B1|1981-09-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AU462886B2|1973-03-26|1975-07-10|Wiltshire Cutlery Co. Pty. Ltd.|Sharpening device|
    CA1023945A|1973-03-26|1978-01-10|Wiltshire Cutlery Company Proprietary Limited|Blade sharpening device|
    FI58270C|1975-08-22|1981-01-12|Wiltshire Cutlery Co Pty|KNIVVAESSNINGSANORDNING|GB2111415B|1981-11-26|1985-07-03|Wilkinson Sword Ltd|Knife sharpeners|
    NZ206318A|1982-11-24|1986-11-12|Wiltshire Consolidated|Knife scabbard with integral sharpener|
    FR2576537B1|1985-01-30|1988-12-02|Seb Sa|SHARPENING SLEEVE AND ITS COMBINATION WITH A KNIFE|
    AUPP749198A0|1998-12-04|1998-12-24|Mcpherson's Limited|Blade sharpener|
    US10381226B2|2016-07-27|2019-08-13|Asm Ip Holding B.V.|Method of processing substrate|
    FR3109110A1|2020-04-14|2021-10-15|Seb S.A.|SHARPENING SLEEVE SUITABLE TO RECEIVE A KNIFE AND COMBINATION OF SUCH SADDLE AND A KNIFE|
    FR3109111A1|2020-04-14|2021-10-15|Seb S.A.|SHARPENING SLEEVE SUITABLE TO RECEIVE A KNIFE AND COMBINATION OF SUCH SADDLE AND A KNIFE|
    FR3109112A1|2020-04-14|2021-10-15|Seb S.A.|COMBINATION OF A HOLDALL AND A KNIFE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AUPC417975|1975-12-04|
    [返回顶部]