JP2579896B2 - Handle device for locking - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking handle used for opening and closing a door and for locking a door to a fixed frame.

[0002]

2. Description of the Related Art In a conventional locking handle device disclosed in Japanese Utility Model Laid-Open No. 5-42554, a rotating shaft of a handle rotatably supported by a seat body mounted on a door,
An interlocking mechanism is interposed between the door and a locking device that locks the fixed frame. In this interlocking mechanism, a lock hub connected so as to rotate integrally with the rotating shaft of the handle, a base end portion is pivotally connected to a side arm portion of the lock hub with a movable shaft, and a movable shaft of an intermediate portion is inserted into a guide slot of a case. The first link provided, the second link whose base end is pivotally connected to the distal end of the first link by a movable shaft, and the linear linkable fit in the case, and the distal end of the second link is mounted on the base end. The slide block is pivotally connected by a movable shaft, and a locking device is connected to the tip of the slide block by a driving member.

In this locking handle device, when the handle is rotated forward and backward, the slide block reciprocates up and down linearly, and the latch member of the locking device moves up and down to engage the metal receiving portion on the fixed frame side. However, in the link mechanism in which the lock hub, the first link, the second link, and the slide block are connected in a chain in this manner, a component force that presses the slide block against the inner wall of the case acts. The resulting frictional force becomes a resistance when the steering wheel is rotated.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a locking handle device capable of performing a simple unlocking operation by reducing the rotational resistance when operating the handle.

[0005]

The locking handle device of the present invention is rotatably supported by a seat body 2 mounted on a door 1 in the following description. It comprises a handle 3, a locking device 5 for locking the door 1 to the fixed frame 4, and an interlocking mechanism 7 interposed between the rotation shaft 6 of the handle 3 and the locking device 5.

[0006] A hub gear 8 connected to the rotating shaft 6 of the handle 3 so as to rotate integrally with the interlocking mechanism 7, a gear 8 a of the hub gear 8 having a base end pivotally connected to the case 10 by a fixed shaft 9. A first link 11 provided with a gear portion 11a meshing at a base end thereof, and a first link 1
The second link 15 is pivotally attached to the distal end of the lock rod 14 with the movable shaft 13 at the distal end, and the case 10 is pivotally attached to the base 10 with the fixed end 9 at the proximal end. Third link 1
6 and a fourth link 18 whose base end is pivotally connected to the distal end of the third link 16 by a movable shaft 17 and whose distal end is pivotally connected to the base end of the lock rod 14 by the movable shaft 13. Configure.

The first link 11, the second link 15, the third link 16 and the fourth link 18 form a parallelogram link mechanism, and a locking device is provided at the distal end of the locking rod 14 via a driving member 20. 5 is connected, and the movable shaft 13 is inserted into a vertical guide slot 19 provided in the case 10.

[0008]

In the locked state of the door 1, the handle 3 is disposed vertically long, the lock rod 14 is located at the position most protruding from the case 10, and the latch member 21 of the locking device 5 is connected to the fixed frame 4 side. Is engaged with the receiving member 22 of the first embodiment. The interlocking mechanism 7 is at the position shown by the chain line in FIG.

When the handle 3 is turned in a predetermined direction to release the lock of the door 1, the rotation force from the rotation shaft 6 of the handle 3 is transmitted to the hub gear 8 of the interlocking mechanism 7, and the first link 1 is rotated.
1 is rotated about a fixed pivot 9 by a predetermined angle. This first
The rotation of the link 11 causes the first link and the second link 15
Then, the parallelogram link mechanism including the third link 16 and the fourth link 18 is operated, and the lock rod 14 is pulled into the case 10.

At the stage where the movable pivot 13 has moved to the base end of the guide slot 19 of the case 10, the latch member 21 of the locking device 5 is disengaged from the metal holder 22 of the fixed frame 4, and the door for the fixed frame 4 is opened. 1 is unlocked. In this unlocked state, the interlocking mechanism 7 is at the position indicated by the solid line in FIG. 4, and the gear portion 8a of the hub gear 8 has the first link 11 at the start end.
Gear 11a.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in the drawings, a tip corner shaft portion 6a of a rotating shaft 6 of a handle 3 is inserted into a central square hole 8b of a hub gear 8. A click recess 24 is provided on the outer peripheral surface of the large-diameter flange 23 of the hub gear 8. When the handle 3 is rotated 60 degrees from the lock position to the unlock position, the click roller 25 engages with the recess 24. In addition, the fact that the vehicle has arrived at the unlock position is notified by an engagement sound. The roller 25 is inserted into a slot 26 in the case 10 in a horizontal direction, and is urged toward the hub gear 8 by a spring material 28 whose both ends are supported by spring receiving portions 27 of the case 10.

The distance between the fixed shaft 9 and the movable shaft 12, the distance between the movable shaft 12 and the movable shaft 13, the fixed shaft 9 and the movable shaft 1
7, the distance between the movable shaft 17 and the movable shaft 13 is equal, and the parallelogram link mechanism is formed such that the four sides are equal.

The click roller 25 also serves as a means for holding the ham gear 8 in the locked position and the unlocked position, and two click concave portions 24 are provided at intervals of 60 degrees. Since two locking devices 5 are provided vertically, the interlocking mechanism 7 is also provided as a pair of upper and lower devices. And locking device 5
As the driving member 20 between the lock rod 14 and the lock rod 14, a vertically elongated link plate is directly connected and used. The case 10 is fixed to the back side of the door 1 via screws through four fixing holes 29 via an adapter 30.

[0014]

As described above, according to the present invention, the first link 11 provided with the gear portion 11a pivotally attached to the case 10 by the fixed shaft 9 and meshing with the gear portion 8a of the hub gear 8; A second link 15 pivotally connected to the link 11 and pivotally connected to the lock rod 14 with the movable shaft 13; a third link 16 pivotally connected to the case 10 with the fixed shaft 9; Since a parallelogram link mechanism is formed by a fourth link 18 pivotally connected to the link 16 and to the lock rod 14 by the movable shaft 13, the hub gear 8 is rotated by the handle 3 to lock the lock rod 14. When moving linearly,
A component force that presses the lock rod 14 against the inner wall of the case 10 does not act at all, and it is possible to provide a locking handle device that can perform a simple unlocking operation by reducing rotation resistance at the time of operating the handle.

[Brief description of the drawings]

FIG. 1 is a front view of a locking handle device according to an embodiment of the present invention in a locked state.

FIG. 2 is a right side view of the locking handle device.

FIG. 3 is a front view of the locking handle device when the handle is removed.

FIG. 4 is a longitudinal sectional view of an essential part of the locking handle device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Receiving main body 3 Handle 4 Fixed frame 5 Locking device 6 Handle rotation axis 7 Interlocking mechanism 8 Hub gear 9 Fixed axis 10 Case 11 1st link 12 Movable axis 13 Movable axis 14 Lock rod 15 2nd link 16 Third link 17 Movable shaft 18 Fourth link 19 Guide slot 20 Driving member 21 Latch member of locking device 22 Retainer on fixed frame side 23 Large-diameter flange of hub gear 24 Depressed portion 25 Clicking roller 26 Horizontal slot 27 Spring receiver Part 29 Clicking spring material 30 Adapter 31 Through hole for lock rod

Claims (1)

(57) [Claims] 1. A handle 3 rotatably supported by a seat body 2 mounted on a door 1; a locking device 5 for locking the door 1 to a fixed frame 4; a rotating shaft 6 of the handle 3 and a lock And an interlocking mechanism 7 interposed between the interlocking mechanism 5 and the stopping device 5.
A hub gear 8 connected to the rotating shaft 6 of the handle 3 so as to rotate integrally therewith, and a gear portion 11a having a base end pivotally connected to the case 10 by a fixed shaft 9 and meshing with the gear 8a of the hub gear 8. The first end of the first link 11 is pivotally connected to the distal end of the first link 11 by a movable shaft 12, and the distal end is pivotally connected to the proximal end of a lock rod 14 by a movable shaft 13. The second link 15 and the base end are fixed to the case 10 by the fixed shaft 9.
A third end of the third link 16 pivotally attached to the third link 16 is pivotally connected to the distal end of the third link 16 by a movable shaft 17, and the distal end is pivotally attached to a proximal end of the lock rod 14 by the movable shaft 13. The first link 11, the second link 15, the third link 16 and the fourth link 18 form a parallelogram link mechanism, which is driven by the distal end of the locking rod 14. Member 2
A locking handle device in which the locking device 5 is connected to the case 10 via a vertical axis and the movable shaft 13 is inserted into a vertical guide slot 19 provided in the case 10.