JP2011236663A - Lock handle device for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock handle device for a door whose operation part to be pulled up to be operated by an operator does not protrude from the device so as to prevent the operation part from being damaged.SOLUTION: The lock handle device comprises: a pivot 5 provided so as to penetrate through a side panel portion 4 of a housing 2; a handle 6 whose one end portion is fixed to the pivot 5 in such a manner as to be stored in the housing 2 and a handle part 16 is integrally provided to the other end portion; and which is provided so as to be swingable about the pivot 5 and to protrudable from the housing 2; a clutch plate 13 which is rotatably supported by a pivot 12 fixed to a back side of the handle 6 and which includes a hook portion 19 engageable with an engaging shaft 18 fixed to a bottom 3 of the housing 2; and an operation lever 8 which is rotatably supported by a pivot 7 at the back side of the handle 6 and is provided with a lock plate 11 spring energized for engaging with the clutch plate 13 at its one end side and with a trigger portion 42 at its other end side.

Description

  The present invention relates to a door lock handle device, and more particularly to a technique of a door lock handle device equipped on a door of a cargo compartment such as a cargo vehicle.

  As a conventional door lock handle device, for example, a device described in Patent Document 1 is known. The door lock handle device pivotally attaches a handle to a distal end portion of an operation lever pivotally attached to a case fixed to the door by a pivot. A latch lever that engages with and disengages from the receiving shaft protruding from the bottom wall of the case is pivotally attached to an intermediate portion of the operation lever, and a trigger lever whose tip claw portion engages and disengages with the latch lever is pivotally attached to the operation lever. When the claw portion of the latch lever is detached from the receiving shaft, the tip claw portion of the trigger lever is engaged with the stop protrusion of the latch lever. A drive protrusion for pressing the front passive portion of the tip claw portion of the trigger lever is provided at the base end portion of the handle.

  When the operator grips the handle and pulls it out against the bias of the spring, the drive protrusion of the handle presses the front passive portion of the trigger lever. The trigger lever rotates about the pivot against the bias of the spring, and the tip claw part is detached from the latch lever. Then, the latch lever is rotated by the bias of the spring, and the stop protrusion is engaged with the tip claw portion of the trigger lever. At this time, the latch lever is released from the receiving shaft, and the locking of the operation lever is released. When the operator releases his / her hand from the handle, the operation lever and the handle are rotated by the spring force and returned to the case.

Japanese Patent Publication No.8-23241

  The pivot of the handle is provided on the tip end side opposite to the pivot of the operation lever, and the grip portion of the handle is further formed at a position away from the operation lever. The handle installed adjacent to the operation lever is installed with the handle grip portion facing the outside. Because the handle grip is exposed to the outside, for example, a vehicle equipped with a door lock handle device may come into contact with the handle and break the handle, or when the vehicle is stopped and working May be damaged by external force.

  SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and there is provided a door lock handle device that can prevent the operation unit from being damaged because the operation unit that the operator pulls up is not exposed to the outside. Is to provide.

  In order to solve this problem, the present invention is provided with a first support shaft provided so as to penetrate the side surface of the housing inward and outward, and fixed to the first support shaft in a state in which one end portion is accommodated in the housing. A handle is integrally provided at the other end, and is rotated around a handle that is rotatable about the first support shaft and that can protrude from the housing, and a second support shaft that is fixed to the back side of the handle. A clutch plate having a hook portion that is movably supported and is engageable with a locking shaft fixed to the inner bottom surface of the housing, and one end portion that is pivotally supported by a third support shaft on the back side of the handle A lock plate that is spring-biased on the side and engages with the clutch plate is provided, and an operation lever that is provided with a trigger portion on the other end side is provided.

  According to the first aspect of the present invention, the lock plate that is rotatably supported by the third support shaft and is spring-biased at one end portion to be engaged with the clutch plate is provided at the other end side. Since the operation lever provided with the trigger portion is installed on the back side of the handle, the operation portion that the operator pulls up and operates is not exposed to the outside, and damage to the operation portion can be prevented.

1 is a perspective view of a door lock handle device 1. FIG. It is the perspective view which looked at the lock handle device 1 for doors from the back side. FIG. 3 is a perspective view of the door lock handle device 1 with the handle 6 unlocked. It is sectional drawing of the lock handle apparatus 1 for doors. FIG. 4 is a cross-sectional view showing a state where the engagement between the lock plate 11 and the clutch plate 13 is released. It is sectional drawing which shows the state by which the lock | rock of the handle | steering-wheel 6 was cancelled | released. It is sectional drawing which shows the state in which the handle 6 is fully opened.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The door lock handle device 1 is screwed to a pivot 5 that is a first support shaft that is rotatably supported by a housing 2 that is embedded and fixed in the door, and both side plate parts 4 that rise from the bottom 3 of the housing 2. Handle 6, an operation lever 8 that can be rotated about a pivot 7 that is a third support shaft fixed to the back side of the handle 6, and an arm 9 of the operation lever 8 are engaged to engage the pivot 10. A lock plate 11 that can rotate as a center, and a clutch plate 13 that is supported by a pivot shaft 12 that is a second support shaft fixed to the back side of the handle 6 and that engages with the lock plate 11 are provided.

  The housing 2 is formed by aluminum die casting and is a box shape in which the peripheral portion of the bottom portion 3 rises, and is screwed to the door surface 15 using a flange portion 14 formed around the peripheral portion. One end of the handle 6 is screwed to two pivots 5 rotatably supported on both side plate parts 4 of the housing 2, and can be rotated around the pivot 5. On the other end side of the handle 6, a handle portion 16 that is gripped by an operator is formed, and in the vicinity of the handle portion 16, an opening portion 17 for inserting a finger is formed.

  The clutch plate 13, which is a flat plate made of metal, includes a hook portion 19 that engages with a locking shaft 18 that is locked to the bottom portion 3 of the housing 2, a contact surface 20 that contacts the lock plate 11, and the lock plate 11. Is provided with a locking surface 25 that rotates when it moves away from the contact surface 20 and contacts the back surface of the handle 6. The clutch plate 13 is rotatably supported by a pivot 12 provided on the back side of the handle 6, and both ends of the pivot 12 are fixed to a bearing portion 26 formed integrally with the handle 6. The clutch plate 13 is biased in the direction of pressing the lock plate 11 by a torsion coil spring 27 attached to the pivot 12.

  Between the one end portion fixed to the pivot 5 of the handle 6 and the handle portion 16, a locking portion 30 to which the one end portion 29 of the tension coil spring 28 is locked is formed. The other end portion 31 of the tension coil spring 28 is locked to a mounting bracket 33 screwed to a stepped portion 32 protruding from the bottom portion 3 of the housing 2. The handle 6 is housed inside the housing 2 with the hook portion 19 of the clutch plate 13 engaging the locking shaft 18 in a state of being biased by the tension coil spring 28. The locking shaft 18 is urged by pressing plates 36 and 37 in a state where the lower portion is supported by stepped portions 34 and 35 protruding from the bottom 3 of the housing 2.

  The operation lever 8 is rotatably supported by a pivot 7 provided on the back side of the handle 6 and behind the clutch plate 13. The pivot shaft 7 is fixed to both side plate portions 40 and 41 that rise on the back side of the handle 6, and arm portions 9 are formed on one side of the operation lever 8 on both sides in the width direction. On the other end portion side of the operation lever 8, a trigger portion 42 is provided so as to be accommodated on the back side of the handle portion 16 of the handle 6. The operator can operate the trigger portion 42 of the operation lever 8 while holding the handle portion 16 of the handle 6.

  The lock plate 11 is rotatably supported by a pivot 10 provided on the back side of the handle 6 and between the clutch plate 13 and the operation lever 8. Convex portions 44 are formed on the outer sides of both side portions 43 of the lock plate 11, and the convex portions 44 abut against the end surface 46 of the arm portion 9 of the operation lever 8 while being urged by a torsion coil spring 45.

  When the operator pulls the trigger portion 42 of the operation lever 8, the end surface 46 of the arm portion 9 of the operation lever 8 presses the convex portion 44 against the spring force, and the lock plate 11 moves from the contact surface 20 of the clutch plate 13. Since the clutch plate 13 is separated, the clutch plate 13 can rotate, and the locking surface 25 of the clutch plate 13 comes into contact with the back surface 50 of the handle 6. Then, the engagement between the hook portion 19 of the clutch plate 13 and the locking shaft 18 is released, and the door can be opened.

  Here, the operation of the door lock handle device 1 will be described. When the operator lifts the trigger portion 42 of the operating lever 8 against the spring force of the torsion coil spring 45 in a state where the door of FIG. 4 is closed, the end face 46 of the arm portion 9 protrudes against the spring force. The portion 44 is pressed, and the lock plate 11 is separated from the contact surface 20 of the clutch plate 13 as shown in FIG. As shown in FIG. 6, the clutch plate 13 that can be rotated is rotated by the spring force of the torsion coil spring 27 until the locking surface 25 comes into contact with the back surface 50 of the handle 6. Then, the hook portion 19 of the clutch plate 13 is disengaged from the locking shaft 18, and the pivot 5 rotates when the operator pulls up the handle 6 against the spring force of the tension coil spring 28 as shown in FIG. Then, the hook connected to the pivot 5 is disengaged and the door is opened.

  When closing the opened door, first, the tip of the hook portion 19 of the clutch plate 13 comes into contact with the locking shaft 18. When the operator continues the closing operation, the clutch plate 13 has the inner surface 51 of the hook portion 19 pressed against the locking shaft 18, and the locking surface 25 is against the spring force of the torsion coil spring 27. It rotates in the direction away from 50. Then, the hook portion 19 is gradually engaged with the locking shaft 18 and rotated to a position where the contact surface 20 contacts the lock plate 11. The hook portion 19 is engaged with the locking shaft 18, and the lock plate 11 is brought into contact with the contact surface 20, thereby being locked.

  The operation lever 8 that is operated by an operator to release the engagement between the lock plate 11 and the clutch plate 13 is installed in a state of being covered with the handle 6 and is not exposed to the outside. This prevents the operation lever 8 from being damaged when it is in contact with the vehicle while traveling, or from being externally applied to the operation lever 8 when the vehicle is stopped and working.

  The locking shaft 18 with which the hook portion 19 of the clutch plate 13 engages is attached by holding plates 36 and 37 with the lower portion supported by the stepped portions 34 and 35 protruding from the bottom portion 3 of the housing 2. Therefore, the through hole for inserting the locking shaft 18 may not be provided in the side plate portion 4 of the housing 2. The tension coil spring 28 is locked to the housing 2 by the mounting bracket 33, but the mounting bracket 33 is screwed to the stepped portion 32 protruding from the bottom 3 of the housing 2. It does not penetrate and protrude to the back side of the housing 2. This prevents rainwater, dust, etc. from entering, for example, the cargo compartment through a through-hole provided in the door lock handle device 1.

  Thus, the pivot 5 provided so as to penetrate the side plate portion 4 of the housing 2 inwardly and outwardly, and the one end fixed inside the housing 2 are fixed to the pivot 5, and the handle 16 is integrated with the other end. A handle 6 provided so as to be rotatable about the pivot 5 and capable of projecting from the housing 2 and a pivot 12 fixed to the rear side of the handle 6 are supported rotatably and fixed to the bottom 3 of the housing 2. The clutch plate 13 having a hook portion 19 that can be engaged with the locking shaft 18 is supported on the pivot 7 on the back side of the handle 6 so as to be rotatable, and is biased by a spring on one end side to be clutch plate 13. And an operating lever 8 provided with a trigger portion 42 on the other end side, so that the operating portion that the operator pulls up and operates is exposed to the outside. Not, it is possible to prevent damage to the operating unit.

DESCRIPTION OF SYMBOLS 1 Lock handle apparatus for doors 2 Housing 3 Bottom part 4 Side plate part 5 Pivot 6 Handle 7 Pivot 8 Operation lever 9 Arm part 10 Pivot 11 Lock plate 12 Pivot 13 Clutch plate 14 Flange part 15 Door surface 16 Handle part 17 Opening part 18 Engagement Stop shaft 19 Hook portion 20 Abutting surface 25 Locking surface 26 Bearing portion 27 Torsion coil spring 28 Tension coil spring 29 One end portion 30 Locking portion 31 Other end portion 32 Stepped portion 33 Mounting bracket 34, 35 Stepped portion 36, 37 Holding plate 40, 41 Side plate portion 42 Trigger portion 43 Side portion 44 Convex portion 45 Torsion coil spring 46 End surface 50 Back surface 51 Inner surface

Claims (1)

A first support shaft provided so as to penetrate the side surface of the housing inward and outward;
One end is fixed to the first support shaft in a state of being housed inside the housing, and a handle portion is provided integrally with the other end, and is rotatable about the first support shaft and protrudes from the housing. Handle,
A clutch plate having a hook portion rotatably supported by a second support shaft fixed to the back side of the handle and engageable with a locking shaft fixed to the inner bottom surface of the housing;
A lock plate that is rotatably supported by a third support shaft on the back side of the handle and is spring-biased on one end side to engage with the clutch plate is provided, and a trigger portion is provided on the other end side. And a lock handle device for a door provided with a control lever.

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