JP4241550B2 - Pulling device - Google Patents

Description

  The present invention relates to a pulling device capable of releasing the engagement between the upper and lower latching claws of the hinged door and the engaging hole on the cabinet body side in conjunction with the operation of the puller provided on the free end side of the hinged door of the cabinet. It is about improvement.

  A handle that can release the engagement between the upper and lower latch claws of the hinged door and the engagement hole on the cabinet body side in conjunction with the operation of the handle provided on the free end of the hinged door in various cabinets such as storage. As a device, at the position between the vertical rotation shaft of the base end of the pull handle (pull member) facing the pull hole of the hinged door (door) and the tip of the pull handle, the cabinet (rocker) main body side A latch claw that can be engaged with an engagement hole (hole-shaped engagement portion) is provided, and a latch rod that is pivotally supported around a vertical axis is provided, and a tip end portion of a lever fixed to the latch rod is provided. There is one (for example, see Patent Document 1) that is engaged near the tip of the pull handle.

According to such a configuration of the pulling device, when the pulling handle is rotated in the front direction of the hinged door, the lever fixed to the latch rod is rotated larger than the pulling handle. The rotation angle of the handle necessary for the release operation of the latch can be reduced with respect to the rotation angle of the latch claw required for the operation of releasing the latch (release operation of the latch). Accordingly, the required depth dimension for the pull handle disposed inside the hinged door can be reduced.
Japanese Utility Model Publication No. 62-27649 (Fig. 1-7)

  In order to enable the release operation of the latch even when the pivot angle of the puller is smaller and to smoothly perform the operation of pulling the puller and opening the hinged door, the pivot angle of the latch rod It is preferable that the ratio with respect to the rotation angle of the pull handle ((rotation angle of the latch claw) / (rotation angle of the pull handle), hereinafter referred to as “magnification ratio”) is larger. For example, an enlargement ratio of about 10 is preferable for improving the operability because the operation can be performed more smoothly. However, the configuration of the pulling device as in Patent Document 1 has a problem that the operability cannot be improved because the enlargement ratio is only about 2 to 4.

  Further, in the pulling device as in Patent Document 1, a latch claw having a downward projection is loosely fitted to the upper end portion of the latch rod, and a latch claw having an upward projection is loosely fitted to the lower end portion of the latch rod, Torsion springs are respectively mounted between the upper and lower latch claws and the front plate of the hinged door (door), and the upper and lower latch claws are mounted on the front frame front surface of the cabinet (rocker) body near the upper and lower ends of the hinged door by the springs. It is urged | biased in the direction engaged with the engagement hole (hole-shaped engagement part) provided in this. In addition, a pressing body having an upward projection is fixed to the latch rod below the upper latch claw so that the upward projection contacts the downward projection of the upper latch claw, while the latch rod has A pressing body having a downward projection is fixed above the lower latch claw, and the downward projection is brought into contact with the upward projection of the lower latch claw. Further, a tension spring is provided that applies a biasing force to the rear side of the hinged door.

  As described above, in the configuration of the pulling device as disclosed in Patent Document 1, it is necessary to provide upper and lower torsion springs and tension springs, and as described above, the number of parts is large, so that it is not possible to improve assemblability and maintainability. There is a problem. In addition, there is a problem that the cost cannot be reduced.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a pulling device that can increase the enlargement ratio and improve the operability. It is another object of the present invention to provide a pulling device that can improve assemblability and maintainability and reduce costs with a simple configuration.

  In order to solve the above-mentioned problem, the pulling device according to the present invention is configured so that the upper and lower latch claws of the hinged door and the engagement hole on the cabinet body side are interlocked with the operation of the puller provided on the free end of the hinged door of the cabinet. The pulling device is capable of releasing the engagement with the upper and lower sides, and the lower end or the upper end of the support is pivotable about a horizontal axis substantially parallel to the front plate of the hinged door. The upper and lower pivot ends of the upper end and lower end of the pivot handle are connected to the upper and lower latch claws and are connected to the upper and lower latch claws. A latch rod connected to the hinged door so as to be rotatable, an outer fitting portion that is externally fitted to an intermediate portion in the vertical direction of the latch rod, and a latch rod connection having a protruding portion that protrudes substantially horizontally from the outer fitting portion The body and the pivoting end of the handle A vertical axis formed on the main body is supported between the actuating piece and the protrusion of the latch rod connecting body so as to be rotatable about a vertical axis, and is attached to the hinged door, and the main body An actuating arm that is provided with a handle abutting part that abuts against the front surface of the action piece and a coupling body abutting part that abuts against the front surface of the protruding part of the latch rod coupling body, protruding substantially horizontally from the part; And an elastic body that applies an urging force in a direction toward the connecting body contact portion of the operating arm to the protruding portion of the latch rod connecting body.

  Here, it is preferable that the latch rod is a square bar, a square engagement hole is formed in the latch pawl and the latch rod coupling body, and the latch pawl and the latch rod coupling body are externally fitted to the latch rod.

  In addition, the lower end of the handle is attached to the lower part of the handle case accommodating the handle so that the lower end of the handle can be rotated about the horizontal axis, and the action piece of the handle is inserted into the rotation restriction hole at the upper part of the handle case Then, it is preferable that the action piece is restricted so that the rotation about the horizontal axis is within a certain range.

  Further, it is preferable that the latch rod connecting body and the elastic body are accommodated in a housing that pivotally supports the vertical axis of the operating arm.

  Furthermore, it is preferable that the elastic body is a torsion coil spring, and an outer fitting portion of the latch rod connecting body is inserted into the coil portion.

  According to the pulling device according to the present invention, in conjunction with a pulling operation provided on the free end side of the hinged door of the cabinet, the upper and lower latch claws of the hinged door are engaged with the engaging hole on the cabinet body side. A releasable pulling device having a longitudinal direction at the top and bottom and a support end at a lower end or an upper end thereof attached to the hinged door so as to be rotatable about a horizontal axis substantially parallel to the front plate of the hinged door, A handle that is regulated so that the rotation of the rotation end of the upper end or the lower end is within a certain range and the upper and lower latch claws are connected to the latch claws so as to be rotatable about a vertical axis. A latch rod attached to the hinged door, an external fitting portion fitted on the middle portion in the vertical direction of the latch rod, and a latch rod coupling body having a protruding portion projecting from the outer fitting portion in a substantially horizontal direction; A working piece formed at the rotating end of The vertical axis formed in the main body portion is supported rotatably around the vertical axis between the protruding portion of the latch rod connecting body and is attached to the hinged door, and is substantially horizontal from the main body portion. An actuating arm provided with a handle abutting portion that abuts against the front surface of the action piece and a coupling body abutting portion that abuts against the front surface of the protruding portion of the latch rod coupling body, and the latch rod coupling body Since the protrusion is provided with an elastic body that applies a biasing force in a direction toward the connecting body contact portion of the operating arm, the enlargement ratio can be further increased, so that the rotation angle of the puller is smaller. However, the release operation of the latch becomes possible, and the operation of pulling the handle and opening the hinged door can be performed more smoothly.

  The latch rod is a square bar, and when the latch pawl and the latch rod connecting body are formed with square engagement holes, and the latch pawl and the latch rod connecting body are externally fitted to the latch rod, the latch The simple structure of the hook, latch pawl, and latch hook joint can improve assembly and maintainability and reduce the cost, and the rotation operation of the latch hook and latch pawl around the vertical axis is reliable. Can be improved.

  Further, the lower end of the handle is attached to the lower part of the handle case accommodating the handle so that the lower end of the handle can be rotated about the horizontal axis, and the action piece of the handle is inserted into the rotation restricting hole in the upper part of the handle case. If the rotation of the action piece around the horizontal axis is restricted to be within a certain range, the simple structure of the handle and the handle case can improve the assemblability and maintainability and reduce the cost. Can be planned.

  Furthermore, when the latch rod connecting body and the elastic body are accommodated in a housing that pivotally supports the vertical axis of the operating arm, the operating arm, the latch rod connecting body, and the elastic body are unitized by the housing. With this simple configuration, it is possible to improve assemblability and maintainability and to reduce costs.

  Further, when the elastic body is a torsion coil spring and the outer fitting portion of the latch rod connecting body is inserted into the coil portion, the mechanism is simplified, the size is reduced, and the cost is reduced by reducing the number of parts. be able to.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and all the embodiments that satisfy the requirements described in the claims are described. Is included. In addition, in this specification, the near side which looked at the cabinet from the front side (toward opening part) is made into the front, the opposite side is made back, and the left and right which looked at the cabinet from the front side are made into right and left.

  1 and 2 are a perspective view and a right sectional view of a cabinet in which the pulling device according to the embodiment of the present invention is used. In the figure, the cabinet 1 has an opening 2a on the front side (front side), a rectangular base 3 in plan view, and a left side plate 4 and a right side plate 5 that are rectangular in side view disposed on the left and right sides of the base 3, A back plate (not shown) having a rectangular shape in front view (rear view) disposed at the rear ends of the base 3 and the side plates 4 and 5, and a rectangular shape in plan view disposed at the upper ends of the side plates 4 and 5 and the back plate. It is comprised by the cabinet main body 2 comprised by the top plate 6, and the hinged doors 7 and 8 etc. which cover the opening part 2a.

  The hinged door 7 has a left end supporting end 7a attached to the cabinet body 2 so as to be rotatable about a vertical axis, and can open the right end free end 7b forward. The hinged door 8 has a support end 8a at the right end thereof attached to the cabinet body 2 so as to be rotatable about a vertical axis, and can open the free end 8b at the left end forward. Since the handle 9 is provided on the free end 8b side of the hinged door 8, the latch is released by pulling the handle 9 as described later, and the hinged door 8 can be opened. Although the hinged door 7 is not provided with a handle, the hinged door 7 can be opened with the free end 7b of the hinged door 7 after the hinged door 8 is opened.

  The pulling handle 9 is attached to the hinged door 8 so that the upper and lower sides thereof are in the longitudinal direction, and the support end 9a at the lower end thereof is rotatable about a horizontal axis substantially parallel to the front plate 8c of the hinged door 8. That is, the support end 9a is pivotally supported by the lower part of the handle case 10 attached to the front plate 8c.

  3 to 5 are explanatory views of the configuration of the pulling device, FIG. 3 is an enlarged front view, FIG. 4 is an enlarged plan sectional view, and FIG. 5 is an XX sectional view of FIG. FIG. 6 is an explanatory diagram of the configuration of a pull handle and a pull case that accommodates the pull handle. FIG. 7 is an exploded perspective view of the pulling device.

  The latch rod 16 is, for example, a square bar made of steel, and latch claws 11 and 12 are fitted on the upper and lower sides thereof. When the hinged door 8 is closed, the latch claws 11 and 12 are engaged with the upper and lower engaging holes 13 and 14 of the cabinet body 2 so that the state of the hinged door 8 is maintained and the hinged door opens unexpectedly. (The lower latch claw 12 and the engagement hole 14 are shown in FIG. 2).

  The latch claws 11 and 12 are manufactured by injection molding of a thermoplastic resin such as polyacetal, polypropylene, or ABS. Resin bushings 34 and 34 for preventing damage to the latch claws 11 and 12 are attached to the engagement holes 13 and 14. For example, as shown in FIG. 4, the bush 34 is attached to the engagement hole 13 formed in the front surface 6 a of the top plate 6. In the following description of the latch, only the configuration around the upper latch claw 11 will be described, but the configuration around the lower latch claw 12 is the same.

  As shown in FIG. 7, the latch claw 11 having a substantially bowl shape in plan view has a cylindrical portion 11 b in which a square engagement hole 11 a into which the upper end of the latch cage 16 is fitted and the rotation of the latch rod 16 is restricted. A projecting portion 11c is provided. A latch claw case 30 that supports the latch claw 11 so as to be rotatable about a vertical axis includes a round hole 30a that is fitted around the lower portion of the cylindrical portion 11b of the latch claw 11 and a rib that is substantially circumscribed on the cylindrical portion 11b. 31-33 are formed. The latch claw case 30 is fixed to the front plate 8c of the hinged door 8 by being fitted into, for example, a square hole formed on the back side of the front plate 8c. The latch claw case 30 is manufactured by injection molding of a thermoplastic resin such as polyacetal, polypropylene, or ABS.

  Further, as shown by the solid line and the two-dot chain line in FIG. 4, the latch claw 11 rotates about the vertical axis. This rotation is caused by the protrusion 11 c on the left side surface of the latch claw 11 and the right side surface of the latch claw 11. Is brought into contact with the latch claw case 30 to be regulated within a certain range. With such a simple configuration, the latch rod 16 is attached to the hinged door 8 so as to be rotatable about the vertical axis integrally with the upper and lower latch claws 11, 12.

  As shown in FIGS. 3 and 7, a latch rod connecting body 17 is externally fitted to an intermediate portion in the vertical direction of the latch rod 16. The latch rod connecting body 17 is provided with, for example, a cylindrical outer fitting portion 17b in which a rectangular engagement hole 17a is formed, and a protruding portion 18 protruding substantially horizontally from the outer fitting portion 17b.

  As shown in FIG. 5 to FIG. 7, the pull handle 9 is formed in front of the hinged door 8 by engaging the left and right shaft portions 27, 27 formed on the support end 9 a with the engagement groove portion 28 at the lower portion of the pull handle case 10. It is attached so as to be rotatable in the front-rear direction around a horizontal axis substantially parallel to the face plate 8c. The engagement groove portion 28 is formed in a substantially U shape that is open rearward, and the vertical distance between the rear portions of the engagement groove portion 28 is slightly smaller than the outer diameter of the shaft portions 27 and 27. Further, the inner surface of the front portion of the engaging groove portion 28 is formed in a size that substantially circumscribes the shaft portions 27 and 27. A slit 29 is formed on the upper side of the engaging groove portion 28 of the pulling case 10 and the periphery of the engaging groove portion 28 is easily elastically deformed, so that the workability when the pulling handle 9 is assembled to the pulling case 10 is improved. can do.

  Further, the handle 9 is formed with an action piece 15 at its rotation end 9b for transmitting the rotation to the latch claws 11 and 12 and releasing the latch. Furthermore, the handle 9 has a finger hook portion 9c formed on the front side with the top and bottom as the longitudinal direction, and can be easily operated with either the right hand or the left hand. In addition, since the distance between the finger-hanging portion 9c and the support end 9a is large, it is possible to more easily perform the turning operation of the handle 9 for releasing the latch described later.

  As shown in FIG. 6, the handle case 10 has a substantially boat-shaped recess with the front side for accommodating the handle 9 opened. In the upper part of the pull case 10, a rotation restricting hole 10 a that contacts the front surface 15 a or the rear surface 15 b of the action piece 15 and restricts the rotation of the pull handle 9 in the front-rear direction is formed. Further, a handle insertion hole 10b extending in the vertical direction and having a width slightly larger than the width in the horizontal direction of the handle 9 is formed on the rear surface of the substantially boat-shaped recess.

  Therefore, assembly of the handle 9 to the handle case 10 can be performed as follows. First, with the shaft portions 27 and 27 of the support end 9 a at the lower end of the pull handle 9 positioned on the rear side of the pull case 10, the action piece 15 of the rotating end 9 b at the upper end of the pull handle 9 is placed on the upper portion of the pull case 10. Is inserted into the rotation restricting hole 10a from below. Next, as described above, the shaft portions 27 of the lower portion of the handle 9 are engaged with the engaging groove portion 28 of the lower portion of the handle case.

  In this way, the handle 9 can be assembled to the handle case 10 easily and reliably. In particular, since there is no need to attach parts such as springs other than the pull 9 and the pull case 10 when the pull 9 and the pull case 10 are assembled, such a simple configuration improves assembly and maintainability. Cost reduction can be achieved. Further, the handle case 10 assembled with the handle 9 can be easily attached to the hinged door 8 from the rear side of the opening formed in the front plate 8 c of the hinged door 8. The handle 9 and the handle case 10 are manufactured by, for example, die-casting such as aluminum or magnesium or injection molding of a thermoplastic resin such as polyacetal, polypropylene or ABS.

  As shown in FIGS. 3, 4, and 7, the operating arm 19 is provided between the pivot end 9 b of the pull handle 9 (the action piece 15 formed on the pivot end 9 b) and the latch rod connecting body 17. It is arranged. The main body portion 22 formed with the vertical axis of the operating arm 19 is attached to the hinged door 8 so as to be rotatable about the vertical axis between the action piece 15 of the handle 9 and the protruding portion 18 of the latch rod connecting body 17. It has been. That is, when the vertical axis formed in the main body portion 22 engages with the upper and lower engagement holes 24, 24 of the housing 23, the operating arm 19 is supported by the housing 23 so as to be rotatable around the vertical axis. ing. Further, the actuating arm 19 abuts against the front face 18 a of the protrusion 18 of the latch rod connecting body 17 and the handle abutment part 20 that abuts against the front face 15 a of the action piece 15 that protrudes substantially horizontally from the main body 22. A connecting body contact portion 21 is provided.

  The housing 23 is fixed by being fitted into a square hole formed in a reinforcing member on the back side of the front plate 8c of the hinged door 8, for example. The latch rod connecting body 17, the operating arm 19 and the housing 23 are manufactured by injection molding of a thermoplastic resin such as polyacetal, polypropylene or ABS.

  The operation arm 19 rotates about the vertical axis when the front surface 20a of the handle contact portion 20 contacts the left side surface 25a of the front plate 25 of the housing 23, and the protrusion of the front surface of the connecting body contact portion 21. 21a is regulated by contacting the rear surface of the front plate 25.

  The upper and lower portions of the outer fitting portion 17 b of the latch rod connecting body 17 are fitted into the upper and lower engaging holes 23 a and 23 a of the housing 23. Here, slits 23b and 23b are formed on the upper and lower surfaces of the housing 23, and the housing 23 is easily elastically deformed in the vertical direction. Therefore, when the operating arm 19 and the latch rod connecting body 17 are assembled to the housing 23, Workability can be improved. Therefore, with such a simple configuration, it is possible to improve assemblability and maintainability and reduce costs.

  In addition to the upper and lower portions of the latch rod 16, the middle portion thereof is also attached to the hinged door 8 so as to be rotatable around the vertical axis via the latch rod coupling body 17. The reliability of the rotation operation around the vertical axis of the flange 16 and the latch claws 11 and 12 can be improved.

  A coil portion 26 a of a torsion coil spring 26 is loosely fitted to the outer fitting portion 17 b of the latch rod connecting body 17. That is, the outer fitting portion 17b is inserted through the coil portion 26a. Then, one end portion 26 b of the torsion coil spring 26 is hooked on the rear side of the protruding portion 18 of the latch rod connecting body 17, and the other end portion 26 c is hooked on the rear side of the housing 23. Therefore, a biasing force is applied to the projecting portion 18 of the latch rod connecting body 17 in a direction toward the connecting body abutting portion 21 of the operating arm 19.

  Note that the elastic body that applies the biasing force in the direction toward the connecting body abutting portion 21 of the operating arm 19 to the protruding portion 18 of the latch rod connecting body 17 is not limited to the torsion coil spring 26, but is a tension coil spring or rubber. An elastic body such as can also be used. However, if the torsion coil spring 26 is used as in the present embodiment, the cost can be reduced by simplifying the mechanism, making it compact, and reducing the number of parts.

  Next, the operation of the pulling device configured as described above will be described. In the state shown in FIGS. 1 and 2 with the hinged door 8 closed, for example, as shown in FIG. 5, the finger 9 is put on the finger hooking portion 9c of the handle 9 to rotate the handle 9 forward around the support end 9a. (Refer to the two-dot chain line in FIG. 5), as shown in FIGS. 4 and 7, the handle abutting portion 20 that contacts the front surface 15a of the action piece 15 of the handle 9 is pushed forward, and the operating arm 19 is moved to the main body. It rotates around the vertical axis formed in the portion 22. By this rotation, the connecting body abutting portion 21 moves rearward, and the protruding portion 18 of the latch rod connecting body 17 whose front surface 18a comes into contact with the connecting body abutting portion 21 is pushed rearward. Thus, the protrusion 18 of the latch rod connecting body 17 is pushed backward against the biasing force of the torsion coil spring 26, and the latch rod 16 that rotates integrally with the latch rod connecting body 17 rotates. The upper and lower latch claws 11 and 12 that rotate integrally with the latch rod 16 rotate (see, for example, the two-dot chain line of the latch claw 11 in FIG. 4).

  In this way, the latch is released by the operation of the pull handle 9, and the hinged door 8 can be opened smoothly. (1) As shown in FIGS. 3 and 4, the distance between the action piece 15 of the handle 9 and the latch rod 16 is kept relatively small (the latch rod 16 is disposed in the vicinity of the handle case 10). (2) The latch rod 16 is not rotated directly by the action piece 15, but the latch rod 16 is rotated via the action piece 15, the operating arm 19 and the latch rod connecting body 17 of the handle 9. (3) As shown in FIGS. 3 and 5, the action piece 15 at the upper part of the handle 9 and the lower support end 9a (the shaft parts 27 and 27 at the lower part of the handle 9 and the engaging groove part 28 at the lower part of the handle case 10) Since the distance is relatively large, the enlargement ratio can be increased with such a simple configuration.

  For example, the rotation angle of the handle 9 is about 3 °, the rotation angle of the operating arm 19 is about 30 °, and the rotation angle of the latch rod connecting body 17, the latch rod 16, and the latch claws 11 and 12 is about 30 °. The configuration can be easily realized. Therefore, it is possible to easily achieve the enlargement ratio of about 10 with such a simple configuration, and it is possible to improve the operability of the operation of pulling the handle 9 to open the hinged door 8.

  Further, as described above, the structure of the pull handle 9 and the pull case 10, the structure in which the latch rod connecting body 17 and the torsion coil spring 26 that is an elastic body are accommodated in the housing 23 that pivotally supports the operating arm 19, and unitized. Since the mechanism is simplified by a configuration using only one elastic body (torsion coil spring 26) as an elastic body for latching, an improvement in assemblability and maintainability and a reduction in cost are realized. be able to.

  In the above description, the lower end of the handle 9 whose upper and lower sides are in the longitudinal direction is the support end 9a, the upper end of the handle 9 is the rotating end 9b, and the action piece 15 is formed on the turning end 9b. The configuration in which the operating arm 19, the latch rod connecting body 17, the latch rod 16, and the latch claws 11 and 12 are rotated is shown. However, the upper end of the handle 9 is used as a support end and the lower end of the handle 9 is used as a rotation end, and an action piece 15 is formed at the rotation end. 16 and the latch claws 11 and 12 may be configured to rotate.

It is a perspective view of the cabinet in which the pulling device concerning an embodiment of the invention was used. It is a right side sectional view similarly. It is a front enlarged view of a pulling device. It is a plane expanded sectional view of a pulling device. It is XX sectional drawing of FIG. It is a structure explanatory view of a handle and a handle case which stores the handle. It is a disassembled perspective view of a pulling device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cabinet 2 Cabinet body 7, 8 Folding doors 7b, 8b Free end 7c, 8c Front plate 9 Pull handle 9a Support end 9b Rotating end 10 Pull handle case 10a Rotation restricting hole 11, 12 Latch claw 11a Square engagement hole 13, 14 Joint hole 15 Action piece 15a Front surface 16 Latch rod 17 Latch rod connection body 17a Rectangular engagement hole 17b External fitting portion 18 Protruding portion 18a Front surface 19 Actuating arm 20 Pull handle contact portion 21 Linkage body contact portion 22 Main body portion 23 Housing 24 Engagement Joint hole 26 Torsion coil spring 26a Coil portions 26b, 26c Terminal portion 27 Shaft portion 28 Engaging groove portion

Claims (5)

A pulling device capable of releasing the engagement between the upper and lower latch claws of the hinged door and the engaging hole on the cabinet body side in conjunction with the operation of the pulling handle provided on the free end side of the hinged door of the cabinet,
The upper and lower ends are longitudinally mounted, and the lower end or upper end support end is attached to the hinged door so as to be rotatable about a horizontal axis substantially parallel to the front panel of the hinged door. A puller that is regulated so that its movement is within a certain range;
A latch rod connected to the upper and lower latch claws and attached to the hinged door so as to be rotatable about a vertical axis integrally with the latch claws;
A latch rod connecting body having an outer fitting portion that fits in an intermediate portion in the vertical direction of the latch rod and a protruding portion that protrudes substantially horizontally from the outer fitting portion;
Between the action piece formed at the rotation end of the pull handle and the protruding portion of the latch rod connecting body, the vertical axis formed on the main body portion is supported rotatably around a vertical axis, and A pulling handle abutting portion which is attached to the hinged door and protrudes from the main body portion in a substantially horizontal direction and abuts on the front surface of the action piece and a connecting body abutting portion which abuts on the front surface of the protruding portion of the latch rod coupling body is provided. An actuating arm,
An elastic body that applies a biasing force in a direction toward the connecting body contact portion of the operating arm to the protruding portion of the latch rod connecting body;
A pulling device comprising:   2. The latch rod according to claim 1, wherein the latch rod is a square bar, a square engagement hole is formed in the latch pawl and the latch rod coupling body, and the latch pawl and the latch rod coupling body are externally fitted to the latch rod. Pulling device.   A lower end of the pull handle is attached to a lower portion of a pull case housing the pull handle so as to be rotatable about the horizontal axis, and an action piece of the pull handle is inserted into a rotation restricting hole in the upper portion of the pull case. The pulling device according to claim 1, wherein the action piece is regulated so that the rotation of the action piece about the horizontal axis is within a certain range.   The pulling device according to claim 1, wherein the latch rod connecting body and the elastic body are accommodated in a housing that pivotally supports a vertical axis of the operating arm. The pulling device according to claim 1 or 4, wherein the elastic body is a torsion coil spring, and an outer fitting portion of the latch rod connecting body is inserted into the coil portion.

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