JPS5880076A - Key lock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sickle lock used for locking sliding doors, etc. The sickle lock works so as to eliminate the play gap between the sliding door and the fixed side frame when the sliding door is locked. The purpose of this invention is to enable the sickle to be automatically locked by the lock ring when the lock is operated.

An embodiment of the present invention will be described below with reference to the drawings.

1 is a frame body, inside which a slide plate 2 is placed on top.
It is provided so that it can be moved freely down.

A long hole 2e is formed in the bent piece 2d at the lower end of the slide plate 2, and although not shown, the long hole 2e is operated by an operating knob from the indoor steel and by a cylinder lock from the outdoor side. It moves up and down via an interlocking member.

A bent protrusion piece 2' is formed on the slide plate 2, and a bent piece 1' of the frame body 1 is engaged in the guide groove 2'', and a spring S is installed between the bent protrusion piece 2' and the bent piece 1'. The spring S always urges the slide plate 2 to slide in the direction of the locked position.An engagement recess 2a is formed at the upper end of the slide plate 2, and a coil spring is inserted into the engagement recess 2a. The protrusion 4a of the closed door detection rod 4, which is constantly pressed by 3, engages.When used as a horizontal sickle lock, the detection rod 4 collides with the opposing fixing member when the door is closed, and the door closed detection is detected. An inclined surface is formed at the tip of the rod 4, and when used as a sickle lock, the inclined surface is brought into sliding contact with a fixing member (not shown) and retreated into the frame 1. This allows the protrusion 4a to Since the engagement recess 2a is removed, the slide plate 2
becomes movable.

The middle part of the slide plate 2 is made up of double folded plates and serves as a support part 2b for the sickle metal 5.

The support portion 2b has a vertically elongated hole 6 having a slanted portion 6a in the middle and a drive retaining hole 7 having an upwardly inward escape hole portion 7a.
is formed.

A sickle shaft 8, which serves as a pivot point for the sickle 5, passes through the vertical hole 6 and is movably supported in a horizontal hole 10 formed at a position where the frame 1 and the cover plate 9 face each other. A sickle pin 11 serving as a drive shaft is movably supported in a vertically elongated hole 12 which is also provided close to the frame body 1 and the cover plate 9 and has an inward guide hole portion 12a at its lower part.

Reference numeral 13 designates a positioning leaf spring, the free end of which comes into pressure contact with the engagement protrusion 2C on the upper part of the slide plate 2 to ensure the vertical movement position of the slide plate 2.

In the above structure, when the lock is unlocked as shown in FIG.
The sickle pin 11 is located at the lower end of the vertically elongated hole 6 in the frame 1 and at the outer end of the horizontally elongated hole 10 in the frame 1 and the cover plate 9. It is located at the upper end of the vertically elongated hole 12 of the cover plate 9.

When the slide plate 2 is lowered from this state, the driving engagement hole 7 of the support part 2b pulls down the sickle pin 11, so the sickle 5 rotates about the sickle shaft 8,
As shown in FIG. 2, it completely protrudes outside the frame 1 in the lateral direction.

Next, when the slide plate 2 is further lowered from this state, the sickle pin 11 is guided inward to the guide hole 12 &, and at this time, the sickle pin 11 is guided to the guide hole 7a in the support portion 2b.
and the inclined part 6a, the crump pin 11 and the sickle shaft 8.
allow or assist the inward movement of the second
At the same time as the state shown in the figure reaches the state shown in FIG. The blocking rod 14 is inserted so that the engaging protrusion 15 engages.
This is done by applying force to the tip of the splintada. therefore,
When the eldest child A is pressed with a finger against the force of the spring, the engagement protrusion 15 is disengaged from the end force island of the groove f, and at the same time the spring S is expanded and the slide plate 2 is slid to the locked position automatically. It will be locked.

As described above, the present invention provides a vertically elongated hole with a diagonal part and a drive retaining hole with a relief hole in the upper part in the support part of the slide plate, which is provided to be able to move up and down with respect to the frame body. A shaft, which serves as a rotational fulcrum, was located in a horizontal hole formed in the frame by passing through the vertical hole, and a sickle pin for driving the binding was formed in the frame by passing through the drive retaining hole. Since it is located in a vertically elongated hole with an inward guide hole at the bottom, the sliding plate can be pulled down to project the binding and then pulled in toward the frame to seal the sliding door. It has the features of being able to

[Brief explanation of the drawing]

Fig. 1 is a diagram of the internal structure of the sickle lock according to the present invention when it is unlocked;
The figure is an internal structural diagram of the same locking process as above, Figure 3 is an internal structural diagram of the same as the above when fully locked, and Figure 4 is an exploded plan view of the frame, binding, slide plate, and lid plate in the state shown in Figure 1. It is. 1... Frame body, 2... Slide plate, 2b... Support part, 5... Seal, 6... Vertical hole, 7... Drive engagement hole, 8... Sickle shaft 1. 9... Lid plate, 10... Horizontal elongated hole, 11... Knuckle pin, 12... Vertical elongated hole, 14... Blocking rod, 15... Engaging protrusion

Claims (1)

[Claims] A slide plate that is vertically movable with respect to the frame body and a spring that always biases the slide plate in the direction of the locked position are provided between the bent protrusion piece of the slide plate and the bent piece of the frame body, and the slide plate A vertically elongated hole having a slanted portion and a driving retaining hole having an escape hole portion at the upper part were provided in the supporting portion of the frame, and a sickle shaft, which served as a rotational fulcrum for the sickle, was formed in the frame by passing through the vertically elongated hole. A sickle pin for driving the sickle is placed in the horizontally elongated hole and passes through the driving retaining hole and is located in the vertically elongated hole having an inward guide hole in the lower part formed in the frame, and the slide plate is released. 1. A sickle lock characterized in that, when slid to a locked position, a retainer of a blocking rod is locked to an engaging portion of the slide plate by a spring that biases the blocking rod.