JPH0443563Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention relates to a push-type locking mechanism, and is characterized in that the front end is opened by pushing the rear end of the lock bar without using a key. That is.

(Prior Art and Problems) Conventionally, there are various types of auto-lock type lock mechanisms, but in all of them, the lock is released by operating a key, button, lever, or the like. Therefore, the structure had to be somewhat complicated due to the installation of these lock release means.

(Means for solving the problem) The present invention is based on a completely new idea, and the lock can be released by pushing the lock bar itself that constitutes the lock mechanism. It does not require any keys, buttons, levers, etc.

That is, by pushing the rear end of the gate-shaped lock bar that is fitted into the main body, the lock that is engaged with the tip of the lock bar inside the main body is moved back and the lock bar is disengaged. The feature is that the lock is moved backward by pressing the slope formed on the upper part with a support pin at the rear end of the lock bar.

(Structure of the invention) As shown in the drawings, the present invention is configured to press the upper rear end of a gate-shaped lock bar 20 whose rear end is pivotally supported by a pin 24, so that the lock bar 20 is biased forward by a spring 14. The lock is moved backward using the slope 11 at the upper rear of the lock 7, disengaging it from the locking notch 22 at the tip of the lock bar, and at the same time, the compression spring 26 installed on the bottom surface of the tip of the lock bar By raising the tip to open the lock bar and releasing the pressure on the upper rear end of the lock bar, the lock moves forward under the action of the spring 14, returning the lock to the auto-lock state, that is, the state shown in Fig. 1, and closing the lock bar. By pushing down the tip 21 of the lock bar 20, the locking notch 22 at the tip of the lock bar is automatically brought into engagement with the locking shoulder 8 of the lock.

In addition to the above-mentioned basic configuration, the present invention is provided with a stopper 16 biased by a spring 19 in a direction perpendicular to the lock 7, so that this stopper automatically acts when the lock is retracted, thereby locking the rear end of the lock bar. Even when the pressure on the upper part is released, the lock is always kept open (reverse unlocked state) by the action of the stopper, and the stopper can be released from the lock by fully opening the lock bar, and the lock can be placed in the auto-lock state. It is possible.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail based on the drawings regarding the latter type with a stopper described in the previous section.

In the figure, 1 is the main body, which has a fixing screw hole 2 approximately in the center, a protruding space 3 on the rear upper surface, a lock hole 4 on the front end upper surface, a notch groove 5 from the rear end surface to a part of the upper surface, and a notch groove 5 on both sides of the rear side. It has an elongated hole 6 in the vertical direction. 7 is a screw hole 2 in the main body 1.
It is a lock that can be slid in the front and back direction and is loaded so as to straddle the seat of the lock.It has a forward locking shoulder 8 at the front end, a protrusion 9 on the upper surface of the central part, and a flat bifurcation at the rear. The top surface of the rear end is sloped 1 with a low front and a high rear.
1. And this lock 7
is always urged forward by a compression coil spring 14 provided between the shoulder 12 on the inside of the main body and the step 13 on the side of the lock.

16 is a stopper with a spring receiving recess 1 in the center of the upper part.
7 and a protrusion 18 at the front of the lower part which comes into contact with the protrusion on the upper surface of the lock, and is provided in the protrusion space 3 of the main body via a spring 19 so as to be constantly biased downward. Reference numeral 20 designates a lock bar that is almost gate-shaped when viewed from the side, and its front end 21 is formed into a hemispherical shape, and a locking notch 22 is provided on the inner surface slightly above the lock bar, while the rear end is slightly above the lower end surface 23. A pin 24 is made to penetrate and protrude in the left-right direction, and both ends of this pin are fitted into the elongated hole 6 on the rear side of the main body so as to be vertically slidable. Compression coil springs 25 and 2 are provided between the rear lower end surface 23 of the lock bar and the lower part of the tip 21, respectively, and the bottom cover 27 of the main body.
6 is provided to constantly push the lock bar upward, and the pin 24 is positioned so as to contact the upper side of the slope 11 at the rear of the lock.

(Operation) When the rear upper part of the lock bar 20 is pushed in the state shown in Fig. 1, the pin 24 presses the slope 11 at the rear of the lock 7, so the lock slides rearward as shown in Fig. 3, and the lock at the tip is locked. The shoulder 18 is removed from the locking notch 22 of the lock bar, and the tip 2 of the lock bar is removed.
1 pops upward from the lock hole 4 of the main body by the action of the spring 26. At this time, the upper stopper 16
is pushed down by a spring 19, and a protrusion 18 at the bottom of the stopper fits in front of a protrusion 9 at the top of the lock, keeping the lock in the retracted state and preventing it from becoming auto-locked.

When the lock bar 20 is fully opened from the state shown in FIG. When the lock is disengaged, the lock automatically advances to the position shown in FIG. 1 by the action of the spring 14, and is in a state where auto-locking is possible, and the lock bar 20 can be locked with a single touch. Although the above embodiment describes a lock mechanism equipped with a stopper 16, if this stopper is not provided, the lock 7 is always pressed forward by the spring 14, so it is always in an auto-lock state. Even with this structure, there is no particular problem when using it.

(Effect of the invention) As mentioned above, this invention has a simple structure and eliminates the key, so when it is in the locked state as shown in Figures 1 and 4, it is difficult for those who do not know the function to unlock it. It has the advantage that it is difficult to judge the operation from the appearance. Furthermore, when used at home, the device can be completely locked without a key, so it has the advantage of being able to be used by simply pressing the lock bar if necessary. Furthermore, it is useful because it can be made smaller and can be installed even in a narrow space.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a vertical side view, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG.
FIG. 3 is a vertical side view in the unlocked state, and FIG. 4 is a perspective view. 1...Main body, 3...Protruding space, 6...Long hole, 7
...Rock, 9...Protrusion, 11...Slope, 16...
...Stopper, 18...Protrusion, 20...Lock bar, 24...Pin, 27...Bottom cover.

Claims (1)

[Claims for Utility Model Registration] 1. A main body 1 with an elongated hole 6 in the vertical direction at the rear, a locking notch 22 at the front end, and a pin 2 at the rear end.
A gate-shaped lock bar 20 is pivotally supported at a pin 24, and a lock 7 is provided with a slope 11 that is biased forward and can be engaged with the locking notch 22 and has a higher rear end side. A push-type lock mechanism characterized in that the slope 11 of the lock 7 is disposed below, and the pin 24 is disposed within the elongated hole 6. 2 A protrusion 9 is provided on the upper surface of the center part of the lock 7, a stopper 16 is provided above the lock 7, and the stopper 1
6 has a protrusion 18 that comes into contact with the protrusion 9 when locked and is located in front of the protrusion 9 when unlocked, and is biased downward by a spring 19, so that when the lock bar 20 is fully opened, the rear end of the lock bar 20 The push-type locking mechanism according to claim 1, wherein the push-button locking mechanism contacts the lower surface of the stopper 16 and raises the stopper 16.