JPH025567Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a push latch device for opening and closing a door or cover attached to an audio rack, box, or the like.

Attached to an audio rack, box, or other piece of furniture that has an attached door or lid,
Push latch devices are already known, in which a door or the like is pushed to lock it and then pushed again to release said lock. This means, for example, that a slider that is slidably inserted into a case that is open at one end and that is biased by a spring outwardly from the case has a ball that is biased by the spring inwardly on one side of the slider. It is built in and inserted into the case, and an endless guide groove for the ball is formed on the inner surface of the case facing the side surface.

This push latch device changes the fixed position of the slider in two stages by moving the ball on the side surface of the slider in a fixed direction through a guide groove that has a substantially V-shaped locking part in the opposing case. It is something. Therefore, in this configuration, the ball is urged outward from inside the slider by a spring and moves in the guide groove of the case, so it requires a spring and has many components. At the same time, the frictional resistance between the ball and the guide groove increases, resulting in poor operation and the need for lubricants such as grease, which contributes to increased costs and becomes an obstacle to miniaturization. ing.

The purpose of the present invention is to solve the above-mentioned problems, and
To provide a push latch device that operates reliably.

The push latch device of the present invention includes a slider that is inserted into a case that is open at one end so as to be able to slide in and out of the case, and is biased by a spring on the outside of the case. A guide groove having a substantially V-shaped locking portion is provided on the inner surface, and a guide lever that can engage with the locking portion is arranged on the side of the slider facing the guide groove, and when the slider is pushed, the inside of the case is moved. In a push latch device, the lock is released when the slider is locked in one position and the slider is pushed again.The guide lever attached to the slider is bent into a roughly V-shape with a fixed piece made of an elastic metal wire and a movable piece. The tip of one movable piece is bent at a right angle to form a guide piece, and the guide piece loosely fits into the guide groove so as to be able to reciprocate in a direction transverse to the moving direction of the slider, and the other fixed piece is fixed to a slider.

An example of the present invention will be described based on the drawings.
In the figure, 1 indicates a push-latch device, which is
A synthetic resin case 2 that has a hollow box shape and is open on one side, and a synthetic resin that has one end inserted into the case 2, the other end separated into a forked shape, and a hook 4 provided on the opposite inner side. It consists of a slider 3 made of aluminum, a guide lever 5 attached to the side surface of the slider 3 between the slider 3 and the case 2, and a guide lever 5 attached to the side of the slider 3.
is configured to be biased by a spring 6 in the opening direction of the case 2. The case 2 has an endless guide groove 7 on the inner surface facing the guide lever 5, and the guide groove 7 is inclined from the front side on one side to the rear end on the other side of the opening side part 7a of the case 2. The front side of the guide lever 5 is provided as the operating base end A of the guide lever 5, and the opening side portion 7a is formed into a deep groove. Furthermore, the case 2 of the guide groove 7 continuous with the opening side portion 7a
The inner side portion 7b is provided so as to be diffracted in the opposite direction to the opening side portion 7a on the back side of the case 2, and its central portion is once bent toward the opening side of the case 2 to form a concave engagement. A stop portion 8 is formed, and the inner portion 7b is formed into a shallow groove. The guide groove 7 as a whole can rotate endlessly,
The tip of the guide lever 5 can move as shown by the arrow in FIG. As shown in FIG.
In addition to making the bottom higher by tilting it towards the opening side,
There is a step on the opening side. As a result, the guide lever 5 always slides in a certain direction without moving backward from the base end A in the direction of symbol C. This joint is not limited to the configuration shown in this embodiment, and is sufficient as long as it determines the moving direction of the guide lever 5.

The guide lever 5 attached to the slider 3 is made of an elastic metal wire material, for example, a spring iron wire.
It is formed in a letter shape, with one side being a fixed piece 9 and the other being a movable piece 10, and the connecting part between the two is a slider 3.
A guide lever 5 is attached to the slider 3 via a support portion 12 protruding from the guide lever 5, and a fixed piece 9 is fixed to the slider 3 so that both tips of the guide lever 5 are on the back side of the case 2. Note that the guide lever 5 may be made of synthetic resin and have elasticity, and in this case, it may be molded integrally with the slider 3. The tip of the movable piece 10 is a guide piece 11 bent at right angles toward the case 2. The guide piece 11 loosely fits into the guide groove 7, and when the movable piece 10 is in a neutral state, the case 2 The proximal end A is set at a position that is biased in the width direction. The guide piece 11 is the case 2
It is configured so that it can reciprocate in the width direction of the guide groove 7 and can also move in the depth direction of the guide groove 7.

This push latch device is attached to the opening of a box such as an audio rack with the hook 4 facing the lid 13. The lid 13 has an engaging projection 14 adapted to the shape of the hook 4, for example, an arrow-shaped projection as shown in FIG. 2, which is fitted with the hook 4 to open and close the lid 13. It is something to do. That is, when closing the lid 13, when the slider 3 is pushed together with the lid 13 against the spring 6 inside the case 2, the slider 3 moves inside the case 2. At this time, since the guide piece 11 of the guide lever 5 is set at the base end A of the guide groove 7 closest to the opening in the opening side portion 7a of the guide groove 7, the slider 3
With the movement of the guide groove 7, the guide piece 11 receives pressure in the width direction of the case 2 by the side wall of the opening side portion 7a, the guide lever 5 is elastically deformed, and the movable piece 10 is moved. Approach the fixed piece 9. When the guide piece 11 moves the entire distance of the opening side portion 7a of the guide groove 7, its movement is stopped at the diffraction portion B of the guide groove 7, and the slider 3 also stops. At this time, when the operator removes the force pressing the lid 13, the movable piece 1
0 is elastically repelled in the direction away from the fixed piece 9 side, and the guide piece 11 moves to the inner side portion 7b of the guide groove 7. Since the slider 3 is urged outward from the case 2 by the spring 6, it moves outward from the case 2. At the same time, the guide piece 11 in the guide groove 7 is
It collides with the wall of the locking portion 12 of the guide groove 7 and becomes locked. Therefore, since the slider 3 is inserted into the inner side of the case 2, the lid 13 can be closed. That is, when the slider 3 is projected, the distance between the hooks 4, 4 is made larger than the width of the engagement protrusion 14 of the lid 13, and when the slider 3 is housed in the case 2, the side wall of the case 2 allows the hook 4 to be , 4 are pressed, the distance between them is reduced, and the engagement protrusion 14 is set to be clamped.
This ensures that the lid 13 is closed. In this embodiment, the hook 4 is formed and the lid 13 is opened and closed using the engaging protrusion 14, but it is also possible to use a permanent magnet or the like at the tip of the slider 3 and provide an iron plate or the like on the lid 13 side as appropriate.

Conversely, when opening the closed lid 13, the slider 3 is pushed together with the lid 13 again. Then, since the movable piece 10 is still urged in the direction away from the fixed piece 9, the guide piece 11 escapes from the locking part 8 of the guide groove 7 and moves downward in the drawing in FIG. It collides with the diffraction portion C of the guide groove 7 and is stopped. When the operator removes the pressing force, the guide lever 5 does not undergo any elastic deformation at this position, so the guide piece 11 moves along the guide groove 7 toward the opening, that is, toward the proximal end A. , the slider 3 is caused to protrude outward from the case 2 by the force of the spring 6. Therefore, the hook 4 at the tip of the slider 3 releases the engagement protrusion 14 of the lid, and the lid 13 is opened. This operation is repeated when opening and closing the lid again, and the guide piece 11
Since the opening side portion 7a of the guide groove 7 is formed as a deep groove, the guide lever 5 is always moved only in the direction of the diffraction portion B, and does not move backward, thereby ensuring complete operation of the guide lever 5. In the guide groove 7, from the diffraction part C,
Since the bottom toward the proximal position A is inclined and a step is provided on the opening side, the guide piece 11 is prevented from moving backward, and the step allows the movable piece 10 to be
It is also possible to transmit the shock to the operator, thereby notifying the operator that the system is operating reliably.

As a means to prevent the slider 3 from slipping out from inside the case 2, the guide piece 11 may be engaged with the guide groove 7, or a protrusion 15 may be provided on the side surface of the slider 3 as shown in FIG. The elongated hole 16 of the case 2 is formed in the moving direction of the slider 3.
It can also be fitted. Further, the case 2 can be fixed to an audio rack or the like in any manner such as by providing a protrusion 17 on the outer wall of the case 2 and locking the case 2 thereto.

Since the push latch device of the present invention has the above-described structure, it can be made smaller by reducing the number of parts, which can contribute to cost reduction. Since the movable piece reciprocates along the guide groove, operation can be ensured. In addition, because the guide lever has elastic force, the side wall of the guide groove collides with the guide piece at the diffraction part of the guide groove, and the sound and shot are transmitted to the operator, making it possible to use the lever while checking its operation. It is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view with the lid open, FIG. 2 is a front view with the lid closed, FIG. 3 is a cross-sectional view of the center of FIG. 2, and FIG. 4 is a front view with the lid open. 5 is a front view of the slider, FIG. 5a is a front view of the guide lever, FIG. 5b is a side view of the guide lever, and FIG. 6 is a partial sectional view of the case taken along line A--A in FIG. 1: Push latch device, 2: Case, 3: Slider, 5: Guide lever, 6: Spring, 7: Guide groove, 8: Locking part, 9: Fixed piece, 10: Movable piece, 1
1: Information piece.

Claims (1)

[Scope of utility model registration request] A slider is provided that is slidably inserted in the inner and outer directions of the case into which one end is open, and is biased outward from the case by a spring. A guide groove having a locking portion is provided, and a guide lever that can engage with the locking portion is disposed on a side surface of the slider facing the guide groove, and when the slider is pushed, it locks at a position inside the case, In a push latch device, the lock is released by pressing the slider again.
The guide lever attached to the slider is bent into a substantially V-shape with a fixed piece and a movable piece made of elastic metal wire, and the tip of one of the movable pieces is bent at a right angle to form a guide piece. A push latch device is characterized in that the push latch device is loosely fitted into a guide groove so as to be able to reciprocate in a direction transverse to the moving direction of the slider, and the other fixed piece is fixed to the slider.