JP2014040756A - Push-pull lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a push-pull lock that includes a lock mechanism capable of being replaced by taking advantage of an attachment recess and a hole of a knob lock and a lever handle lock.SOLUTION: A push-pull lock is opened by making a slide latch 1 retreated by unlocking cams 5 and 6 rotatively driven by advance or retreat of handles 3 and 4. An operating rod 7, which is arranged in such a manner as to overlap the unlocking cams 5 and 6, which has a lock knob 10 provided at one end, which has a display board 11 provided at the other end and which has a lock part 12 positioned at the back end of the slide latch 1 when the lock knob 10 is pushed in, is arranged.

Description

  The present invention relates to a push-pull lock that can unlock a slide latch by pushing or pulling a lever in a direction to open a door.

The maintenance industry demands that a push-pull lock can be exchanged by making use of the original lock mounting recess and perforation for exchanging the grip ball lock and lever handle lock.
As such, a push-pull lock as found in Patent Document 1 was proposed, but there was no locking mechanism.

JP2011-94397

  The present invention has been made in view of such problems, and an object of the present invention is to provide a push-pull lock provided with a lock mechanism that can be exchanged by making use of a mounting recess or a perforation of a grip ball lock or lever handle lock. Is to provide.

  In order to achieve such a problem, in the present invention, in the push-pull lock in which the slide latch is retracted and unlocked by the unlocking cam that is rotationally driven by the advancement and retraction of the handle, it is arranged so as to overlap the unlocking cam The lock knob is disposed at one end, the display plate is disposed at the other end, and an operating rod having a lock portion located at the rear end of the slide latch when the lock knob is pushed in.

According to the present invention, since the lock mechanism for restricting the movement of the slide latch is incorporated in the same area as the unlocking mechanism, it can be exchanged by making use of the mounting recesses and perforations of the grip ball lock and lever handle lock. .

It is the perspective view which shows the outline | summary of the push pull lock of this invention, and the perspective view which shows a locking mechanism. It is a perspective view which shows the locking mechanism of the push-pull lock of this invention. It is a longitudinal cross-sectional view which shows one Example of the push-pull lock of this invention. It is a longitudinal cross-sectional view which shows one Example of the push-pull lock of this invention. It is a perspective view which shows the state at the time of the lock of the push-pull lock of this invention.

Therefore, the details of the present invention will be described below based on the illustrated embodiments.
1 and 2 show an outline of the push-pull lock of the present invention and an embodiment of the locking mechanism, and FIGS. 3 and 4 show an embodiment of the present invention. A window 2 is formed at the rear end portion of the slide latch 1 of the push-pull lock having the structure as described above, and is a solution that is driven to rotate by advancing and retracting the handles 3 and 4 located on the front and back of the door. The lock cams 5 and 6 are inserted so as to sandwich the operating lever 7 of the lock mechanism.

  As is well known, the unlocking cams 5 and 6 are connected at their rear ends via mechanisms 8 and 9 for converting the advance and retreat of the handles 3 and 4 into a rotational motion, and the front ends thereof rotate to retract the slide latch 1. Let

  On the other hand, the operating rod 7 constituting the lock mechanism has a lock knob 10 at one end, a display plate 11 at the other end, and a rear side of the slide latch 1 in a region facing the window 2 of the slide latch 1 when the lock knob 10 is pushed. A lock portion 12 located at the end is formed.

  In this embodiment, when the door D is attached to the door D and the door D is closed, the slide latch 1 enters the latch receiver 13 of the pillar P and is locked.

  In order to lock, when the lock knob 10 near the mounting seat 14 is pushed into the door D, the operating rod 7 moves and the lock portion 12 is positioned at the rear end portion of the slide latch 1. Thereby, the slide latch 1 is restrained by the lock portion 12 and cannot move regardless of the operation of the handles 3 and 4. Further, in this state, as shown in FIG. 5, the display plate at the other end of the handle 3 is exposed from the mounting seat 13 to indicate to the other person that the door is currently locked.

  In order to release the lock, when the lock knob 10 is pulled toward the lever 4 side, the lock portion 12 comes out of the rear end portion of the slide latch 1 and the lock is released. At the same time, the display plate 11 is hidden by the mounting seat 13.

  As described above, according to the present invention, the unlocking cams 5 and 6 for moving the slide latch and the operating rod 7 for operating the lock portion 12 are arranged so as to overlap with each other. If it can be replaced by making use of the recesses and perforations, it can be replaced with a push-pull lock having a locking mechanism.

DESCRIPTION OF SYMBOLS 1 Slide latch 2 Window 3, 4 Handle 5, 6 Unlocking cam 7 Actuation rod 8, 9 Motion conversion mechanism 10 Lock knob 11 Display board 12 Lock part

Claims (1)

In the push-pull lock that the slide latch is retracted and unlocked by the unlocking cam that is rotationally driven by the advancement and retraction of the handle,
An operating rod having a lock part positioned at the rear end of the slide latch when the lock knob is pushed in, arranged with a lock knob at one end, a display plate at the other end, and the lock knob is arranged. Push-pull tablet.

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