JP3375487B2 - Handle lock - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case where a cylinder lock is inserted into a shaft portion of a handle, and after the cylinder lock position is adjusted, the cylinder lock cannot be turned and cannot be rotated in the axial direction. The present invention relates to a handle lock having a structure that is immovably fixed. 2. Description of the Related Art A handle lock provided with a mechanism for fixing a cylinder lock inserted into a shaft portion of a handle so as not to be rotatable and not to be movable in an axial direction after the position adjustment is disclosed in Japanese Patent Application Laid-Open No. 7-1995.
There is a technique described in JP-A-293056 and JP-A-7-305543. All of these techniques relate to a flat handle type handle lock , in which a position adjusting member having a female screw on an inner peripheral surface is inserted into a shaft portion of the handle, and a male screw provided on an outer peripheral surface of the cylinder lock is changed to a female screw. After the position of the cylinder lock is adjusted by screwing, the cylinder lock is restricted so as not to be able to rotate and to be unable to move in the axial direction. In the former handle device described in Japanese Patent Application Laid-Open No. 7-293056, a window hole is passed through the shaft portion of the handle in order to restrain the cylinder lock after position adjustment so that it cannot rotate and cannot move in the axial direction. The position adjusting member is provided with a slit at one end of an annular portion in which a female screw is screwed, and a pull-out preventing member having a protruding end provided on both sides of the slit is used. The protruding end of the prevention member is protruded from the window hole, and both protruding ends are tightened with a tightening bolt from the outside of the shaft to clamp the cylinder lock. In the latter handle device described in Japanese Patent Application Laid-Open No. Hei 7-305543, a through hole is formed in the shaft portion of the handle in order to restrain the cylinder lock after position adjustment so that it cannot rotate and cannot move in the axial direction. The nut which is provided and provided as a position adjusting member is provided with a hole which can be overlapped with the through hole of the shaft portion, and a notch is provided on the outer surface of the cylinder lock. The rotation lock is inserted into the through hole of the shaft, the hole of the nut, and the notch of the cylinder lock to restrain the cylinder lock from rotating and immovable. In the former prior art, the pull-out preventing member has a protruding end protruding from the window hole and cannot be rotated. Therefore, in order to adjust the position of the cylinder lock, the cylinder lock must be rotated, but in order to align the keyhole of the cylinder lock in a predetermined direction, the rotation of the cylinder lock is limited to one rotation or a multiple thereof. Fine adjustment smaller than one pitch of the screw cannot be made. In addition, there is a problem that the internal structure of the shaft portion is complicated, and it is difficult and troublesome to attach and tighten the pull-out preventing member, and the operation time for attaching the cylinder lock is long. [0006] In the latter prior art as well, since the through hole of the shaft portion, the hole of the nut, and the notch in the outer surface of the cylinder lock are overlapped and the rotation preventing device is inserted, the same as the former prior art, the pitch of the screw is smaller than one pitch. However, there is a disadvantage that small fine adjustment cannot be performed.
In addition, since it is difficult to overlap the through hole of the shaft portion, the hole of the nut, and the notch of the cylinder lock, there is a disadvantage that the time required to attach the cylinder lock becomes long, as in the former prior art. As a handle lock which has solved such a drawback, there is a handle lock having a cylinder lock mounting structure shown in FIGS. 4 to 6. The outline of the entire handle lock and the mounting structure of the cylinder lock will be described. A lock case 1 is fixed to the lock case 1, a large-diameter inner circumferential surface 2 is formed in the front half of the inner circumferential surface of the lock case 1, and a cutout 3 is formed at the rear end of the inner circumferential surface in front (right side in FIG. 4). Are formed on the inner peripheral surface of the first member. The sleeve 5 rotatably inserted into the inner peripheral surface of the lock case 1 is provided with a bottom wall 7 at the rear end of a cylindrical peripheral wall 6 and a projection 8 provided on the outer surface of the bottom wall 7. A rotation restricting plate 9 is attached, a flange 10 is provided at the front end of the peripheral wall 6, an elongated hole 11 extending forward from a position facing the notch of the lock case 1 is provided, and a handle 12 is provided on the inner surface of the peripheral wall 6. Shaft 1
3 is inserted movably in the axial direction (see FIG. 4). The handle 12 includes a shaft 13 and a handle 14 provided at the tip of the shaft 13.
Between the rear end face of the sleeve 5 and the bottom wall 7 of the sleeve 5
Is inserted. The lock plate 17 is inserted into a lock plate storage chamber 16 provided at the rear of the shaft portion 13, and is urged by a spring 18 in a direction protruding from the outer peripheral surface of the shaft portion 13 (see FIG. 4). A large-diameter cylinder lock insertion hole 20 for accommodating the cylinder lock 19 is provided at a front portion of the shaft portion 13, and a lock plate storage chamber 1 is provided behind the large-diameter cylinder lock insertion hole 20.
6 is provided with a non-circular shaft portion 2 provided at the rear end of the rotor 22 of the cylinder lock 19.
3 is rotatably inserted into the cam 24.
The tip of a pin 38 penetrating the shaft portion 13 is engaged with the groove 37 provided around the shaft portion 13. Therefore, the cam 24 is restrained from moving in the axial direction. While the cylinder lock 19 is locked, the lock plate 17 passes through the elongated hole 11 and engages with the locking recess 4. However, when the cylinder lock 19 is unlocked, the lock plate 17 is integrated with the rotor 22. The cam 24 that rotates to the unlocking angle pushes the lock plate 17 in the immersion direction.
The engagement between the locking recess 7 and the locking recess 4 is released, and the handle 12 protrudes and can be rotated. The case 25 of the cylinder lock 19 to be inserted into the large-diameter cylinder lock insertion hole 20 of the shaft portion 13 has a flange 26 at the front end, and the outer peripheral surface behind the flange 26 has two notched flat surfaces. 27, a non-circular outer peripheral surface is formed, and a male screw 28 is screwed on the non-circular outer peripheral surface (see FIG. 6). A female screw provided on the inner peripheral surface of the cylindrical adapter 29 is screwed into the male screw 28. A flat mounting seat 30 is provided on the outer surface of the shaft 13.
Are formed, a screw hole 31 is provided in the center of the mounting seat 30, and holes 32 penetrating the shaft portion 13 are provided at both ends of the mounting seat 30 (see FIG. 6). The stopper 33 attached to the attachment seat 30 is provided with a screw insertion hole 34 at a position overlapping the screw hole 31, and a screw 35 inserted into the screw insertion hole 34 is screwed into the screw hole 31. Stopper 33
Are provided at both ends with legs 36 to be inserted into the holes 32 (see FIG. 6). When the cylinder lock 19 is inserted into the large-diameter cylinder lock insertion hole 20 of the shaft portion 13 and the two notched planes 27 of the cylinder lock 19 are held by the legs 36 of the stopper 33, the cylinder lock 19 rotates. I am bound to be impossible. By clamping the leg 36 between the adapter 29 and the flange 26, the cylinder lock 1
9 is restrained immovable in the axial direction. As described above, the fixing mechanism that adjusts the position of the cylinder lock 19 and fixes the cylinder lock 19 so that it cannot rotate and cannot move in the axial direction is constituted by the adapter 29 and the stopper 33. Therefore, as compared with the handle lock described in the above publication, there is an advantage that the structure is simple, and there is a great advantage that the mounting work of the cylinder lock 19 is simple. However, due to the impact of opening and closing the door violently on the handle lock and the impact applied to the box that pivots the door, etc.
There is a possibility that the adapter 29 which has received the impact idles only slightly in the direction in which the screw is loosened and the cylinder lock 19 rattles in the axial direction. The present invention aims to solve such a problem, while taking advantage of the handle lock of this type,
The object of the present invention is to provide a handle lock in which the adapter 29 does not run idle even if it receives a shock. In order to achieve the above object, a handle lock according to the present invention is provided with a cylinder lock insertion hole in a shaft portion of a handle rotatably inserted into a lock case. A lock mechanism for inserting a cylinder lock into the lock insertion hole, providing a fixing mechanism for fixing the cylinder lock case so that it cannot rotate and cannot move in the axial direction, and locks and unlocks the lock case by operating the cylinder lock. In the handle lock provided with the above, the fixing mechanism is inserted into a hole provided in the shaft portion and has a stopper having a leg portion engaging with a non-circular outer peripheral surface of the cylinder lock, and a case of the cylinder lock. A cylindrical adapter having a female screw threadedly engaged with a threaded male screw, and an annular elastic body fitted into an annular groove provided on the outer peripheral surface of the adapter and closely attached to the cylinder lock insertion hole with elastic deformation. When It was constituted by. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a conventional type in which a fixing mechanism for adjusting the position of a cylinder lock and fixing the cylinder so that it cannot rotate and cannot move in the axial direction is constituted by an adapter 29 and a stopper 33. Since most of the parts are used as they are, the same parts as those in the related art are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 1 is a vertical sectional view of a handle lock, FIG. 2 is a front view of an adapter viewed from an axial direction, and FIG. 3 is a side view of FIG. The cylindrical adapter 39 of the present invention differs from the conventional adapter 29 in that an annular groove 40 is provided on the outer peripheral surface, but is the same as the conventional example in that an internal thread is provided on the inner peripheral surface. . An annular elastic body 41 made of rubber or the like is fitted in the annular groove 40 of the adapter 39.
(See FIG. 3). An annular elastic body 41 fitted in the annular groove 40
The outer diameter of the cylinder lock insertion hole 20
Since the ring-shaped elastic body 41 comes into close contact with the large-diameter cylinder lock insertion hole 20 with elastic compression deformation when inserted into the large-diameter cylinder lock insertion hole 20 together with the adapter 39 since the inner diameter is larger than the inner diameter of the cylinder lock insertion hole 20. In order to insert the adapter 39, a larger insertion force than before is required, but the insertion force is not large enough to hinder the insertion operation. The attachment of the stopper 33 is the same as the conventional one. The annular elastic body 41 presses against the large-diameter cylinder lock insertion hole 20 by elastic compression force and presses against the annular groove 40 of the adapter 39 (see FIG. 1). Since a large frictional resistance is generated to prevent idling, even if an external impact is applied to the locked handle device shown in FIG. 1, the impacted adapter 39 will not idle. Therefore, the possibility of rattling of the cylinder lock 19 can be eliminated by a simple improvement in which the annular groove 40 is provided in the conventional adapter 29 and the annular elastic body 41 is fitted in the annular groove 40. The locking and unlocking operations of the handle lock are the same as those in the prior art. In the locked state shown in FIG.
The handle 12 cannot protrude or rotate because the tip of the lock plate 17 is engaged with the locking recess 4 of the lock case 1. When a key is inserted into a keyhole opening at the tip end surface of the rotor 22 and rotated to the unlocking angle,
The cam 24, which rotates at an unlocking angle integrally with the lock plate 17, pushes the lock plate 17 in the immersion direction, and the lock plate 17
The engagement between the distal end of the lock case 4 and the locking recess 4 is released, and the handle 12 projects to the front surface of the lock case 1 and becomes rotatable. Since the present invention is constructed as described above, the conventional adapter is provided with an annular groove, and a simple improvement in which an annular elastic body is fitted in the annular groove is achieved. It was possible to prevent idling and to eliminate the possibility of rattling of the cylinder lock.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing a locked state of a handle lock. FIG. 2 is a front view of the adapter as viewed from an axial direction. FIG. 3 is a side view of FIG. 2; FIG. 4 is a longitudinal sectional view of a conventional handle lock before a cylinder lock is attached. FIG. 5 is a longitudinal sectional view of a conventional handle lock showing a locked state. FIG. 6 is a sectional view taken along line XX of FIG. 5; [Description of Signs] 1 Lock case 12 Handle 13 Shaft 17 Lock plate 19 Cylinder lock 20 Cylinder lock insertion hole 22 Rotor 24 Cam 25 Cylinder lock case 26 Flange 27 Notch plane 28 Male screw 33 Stopper 36 Leg 39 Adapter 40 Ring Groove 41 Annular elastic body

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-305543 (JP, A) JP-A-6-10385 (JP, A) JP-A-7-293056 (JP, A) 34786 (JP, U) Jiko 40-10800 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05B 13/10 E05B 9/08 E05B 5/00-5/04 E05B 65/02

Claims (1)

(1) A cylinder lock insertion hole is provided in a shaft portion of a handle rotatably inserted into a lock case, and a cylinder lock is inserted into the cylinder lock insertion hole. A fixing mechanism for fixing the lock case so that it cannot rotate and cannot move in the axial direction is provided,
In a handle lock provided with a lock plate that is engaged with and disengaged from the lock case by the locking and unlocking operation of the cylinder lock, the fixing mechanism is inserted into a hole provided in the shaft portion,
A stopper having a leg engaged with a non-circular outer peripheral surface of the cylinder lock, a cylindrical adapter having a female screw engaged with a male screw threaded in a case of the cylinder lock, and provided on the outer peripheral surface of the adapter; A handle lock comprising: an annular elastic body fitted into the annular groove provided and closely attached to the cylinder lock insertion hole with elastic deformation.