JPS5915580Y2 - Door fixing device for double doors - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door fixing device for a double door used for furniture such as a wardrobe or the like.

Traditionally, in double doors, one of the left and right doors (usually the left door) was fixed to the main body opening of a wardrobe, etc., and the other door was closed with various catchers. The structure for fixing the side door to the opening of the main body is to install rods that can move up and down on both the upper and lower sides of the free end of the front door, and push these rods up or down with your fingertips to engage them in the holes provided on the main body side. However, once the fixed side door is opened, the rod must be operated each time the door is fixed in the idle position, making the door fixing operation cumbersome.

Therefore, the present invention aims to provide a door fixing device for a double door that can automatically fix the front door when the door is closed and has a simple and compact structure.The structure is as follows.

In the present invention, a device body equipped with a retaining piece is provided at the free end of the door, and a locking portion is provided on the furniture body to which the retaining piece can be engaged and released, and the retaining piece is attached to the device body. For the body frame of
It is mounted so that it can slide vertically within a certain regulated range and rotate forward and backward around a horizontal axis so that it can move in and out of the lower part of the main body, and the retaining piece has an inclined surface that can be replaced by rotation. A vertical surface is provided, and a push rod is attached to the main body frame with one end engaging the retaining piece and the other end protruding outside to hold the retaining piece in the retaining position where the front side is always an inclined surface. It is installed so that it can slide freely in the vertical direction, and within the same body frame,
The push rod is pressed against the retaining piece by a spring that exerts a spring force in the direction of protruding the retaining piece downward from the main body frame via the push rod, and the retaining piece can be detached so that the back surface becomes an inclined surface. This is a door fixing device for a double door, characterized in that it is provided with a spring that exerts a spring force in a direction of rotationally displacing the posture.

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

1 is the main body of the device, and 2 is a locking tool corresponding to the main body 1, and this device usually attaches both 1 and 2 to the free end of the fixed side door of furniture, etc., and to both upper and lower sides of the center of the main body opening. It is constructed by installing one set at a time.

However, since the structure of the device main body 1 and the locking tool 2 and the mounting structure for furniture etc. are exactly the same on both the upper and lower sides,
Hereinafter, only the lower device main body 1 and the locking tool 2 will be illustrated and described, and the upper side will be omitted from illustration and explanation, assuming that the directions of both 1 and 2 are reversed up and down.

The device main body 1 includes a main body frame 3 having a mounting portion 31 for the door.
An engaging piece 4, a push rod 5, etc. are provided to prevent this.

6 is a back plate. The retaining piece 4 has a triangular side surface and a convex portion 41 on the front side of the upper part.

42 is a horizontal pivot inserted through the retaining piece 4;
The mounting plates 7.7 are attached to the left and right inner surfaces of the main body frame 3, with both ends of the mounting plates 7.7 inserted into the slots 71.71 of the pair of mounting plates 7.7.

In this way, the retaining piece 4 can be freely slid up and down within a certain length range regulated by the slots 71 and 71, that is, can be freely moved in and out of the main body frame 3, and can be rotated in the front and rear directions around the pivot shaft 42. It is attached to the lower part of the main body frame 3 like a vine.

The push rod 5 has a prismatic shape and is inserted into the main body frame 3 so as to be able to slide vertically with the head 51 protruding outside.

A stopper 52 is provided on the back side of the lower end of the push rod 5, and by engaging this stopper 52 with the convex portion 41 of the engagement piece 4, the retaining piece 4 is always arranged so that its front face 43 is an inclined surface. It is maintained in a posture where the back surfaces are vertical.

A recess 53 is provided on the back of the push rod 5, and the lower end of the compression coil spring 8 inserted into the four parts 53 is supported on the lower surface side of the recess, and the upper end is supported on the spring receiver piece 32 of the main body frame 3. The spring 8 constantly presses the push rod 5 against the retaining piece 4, and exerts a spring force through the push rod 5 in the direction of protruding the retaining piece 4 downward from the main body frame 3.

That is, the spring 8 is pushed against the engagement piece 4 by the push rod 5.
The structure is such that it is used both for pressing and for protruding the retaining piece 4.

Further, a torsion coil spring 9 is attached to the pivot shaft 42 of the engagement piece 4.
By wrapping one end around the retaining piece 4 and inserting the other end into the concave hole 54 provided in the push rod 5, the retaining piece 4 is placed in the opposite engagement position as described above. A spring force is applied in the direction of rotation to a detachable position in which the front surface 43 is a vertical plane and the rear surface is an inclined plane.

Therefore, the stopper 52 of the push rod 5 is
If the retaining piece 4 is made free by removing it from the holder, the fixed piece 4 is automatically rotated to the removable position.

This device main body 1 is attached to the inner surface of the free end of a fixed side door (usually the left door) D of a double door of a wardrobe, for example.

On the other hand, the locking tool 2 has a mounting portion 21 for the furniture body and a vertical locking portion 22 with which the retaining piece 4 engages, which are integrally connected.

The locking part 22 of this locking tool 2 is designed to serve as a door stop for both the left and right doors, and is attached to the inner surface of the front end of the center of the lower wall of the main body A of a wardrobe corresponding to the device main body 1, for example.

Next, the effect will be explained.

FIG. 4 shows a state in which the left door door is fixed in the closed position.

At this time, between the vertical surfaces of the engaging pieces 4 is the locking part 22 of the locking tool 2.
Since the retaining piece 4 is prevented from rotating by the stopper 52 of the push rod 5, the left door door is firmly fixed in the closed position.

In this state, the right door (not shown) can be freely opened and closed, and the right door is closed like the left door by a catcher (not shown).

To open the left door, pull up the push rod 5 with the head 51.

By doing this, as shown in FIG. 5, the stopper 52 of the push rod 5 comes off the convex part 41 of the engagement piece 4, and the retaining piece 4 becomes free, so that the fixed piece 4 is torsioned by the spring of the coil spring 9. Due to the force, the front surface 43 is automatically rotated to a detachable position in which the front surface 43 is a vertical plane and the rear surface is an inclined surface.

Note that when the push rod 5 is pulled up, the engaging piece 4 may rise together with the push rod 5 due to the frictional resistance between the convex portion 41 and the stopper 52, but the sliding stroke of the retaining piece 4 is caused by the slot 71. 71, so even if the specimen 4 rises to the maximum, by pulling up the push rod 5 further, the stopper 52 will move to the convex portion 4.
It will be removed from 1.

If you pull the left door in this state, the locking part 2 will be located between the slanted backs.
2, the retaining piece 4 slides upward against the spring 8, temporarily sinks into the main body frame 3, and locks into the locking part 2.
In order to overcome 2, you can open the left door.

Next, when closing the left door from the above state, first the vertical front surface 43 of the retaining piece 4 hits the locking part 22.

When the retaining piece 4 is in this removable position, the convex portion 41 of the fixed piece 4 and the stopper 52 of the push rod 5 are only in contact with each other at their tip surfaces, so the engaging piece 4 is in the vertical position. front side 4
3 hits the locking portion 22, it is rotated to the original engagement position as shown in FIG.

When the left door door is subsequently pushed, the retaining piece 4 rises once due to the guiding action of the inclined front surface 43, climbs over the locking portion 22, and then engages with the rear surface of the locking portion 22.

In this way, the left door door is fixed in the closed position again.

In this way, when using this device, the iron door can be automatically statored when the door is closed.

Therefore, there is no need to perform the door fixing operation every time as in the conventional case, and the operation becomes simple.

Further, since the engaging piece 4 is made to protrude and retract using its inclined surface and is engaged and disengaged from the locking portion 22, the door can be opened and closed easily and the operation is highly reliable. Even if the door is suddenly closed, the door will not come back due to reaction and can be securely closed.

Furthermore, since the engagement posture of the engagement piece 4 with respect to the locking portion 22 is reliably maintained by the push rod 5 and the spring 8,
A stable door fixation state can be obtained.

In addition, since the sliding stroke of the engagement piece 4 is restricted within a certain range, when the push rod 5 is pulled up to release the fixation of the retaining piece 4, the iron piece 4 rises together with the push rod 5 (main body frame It is possible to prevent operational troubles such as being immersed in the computer.

Further, the spring 8 is configured to be used both for pressing the push rod 5 against the retaining piece 4 and for protruding the engagement piece 4, and for fixing the engagement piece 4 by directly pulling up the push rod 5. By having a configuration in which this is canceled, the number of parts for the entire device can be reduced, and the structure can be simple and compact.

Note that in the above embodiment, the locking part for locking and unlatching the retaining piece was formed as a vertical wall on a locking tool separate from the furniture body, but a hole was bored in the furniture body and the locking part was formed as a vertical wall. You can also use it as

As described above, according to the present invention, the fixed side door of a double door can be automatically fixed, which simplifies the operation, allows the door to be opened and closed easily, and ensures that the door is fixed securely. In addition, the door fixing and releasing operation is easy, and the structure is simple and compact, so it has extremely high practical value.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view of the main body of the device, Fig. 2 is an exploded perspective view of the same, Fig. 3 is a perspective view of the locking device, and Fig. 4 is a longitudinal section showing the door fixed state. A side view, FIG. 5 is a longitudinal side view showing the unlocked state, and FIG. 6 is a longitudinal side view for explaining the door fixing action. DESCRIPTION OF SYMBOLS 1... Device main body, 22... Locking part, 3... Main body frame, 4... Engagement piece, 42... Pivot, 43.44...
The front, back, and 5... which are the inclined surfaces or vertical surfaces of the engagement piece.
Push rod, 71... Slot hole for regulating the sliding stroke of the engagement piece, 8... Spring for pushing the push rod and protruding the engagement piece, 9... Spring for rotational displacement of the engagement piece.

Claims (1)

[Scope of utility model registration request] A device main body equipped with a retaining piece is provided at the free end of the door, while a locking part is provided on the furniture main body to which the above-mentioned engaging piece can be engaged and detached,
The retaining piece can slide vertically within a certain regulated range with respect to the main body frame of the device main body so that it can appear and retract below the main body frame, and can also rotate back and forth around a horizontal axis. The retaining piece is provided with an inclined surface and a vertical surface that are interchangeable by rotation, and one end engages a push rod for holding the retaining piece in a retaining position with the front surface always being the inclined surface. The push rod is provided in the body frame so as to be slidable in the vertical direction with the other end protruding to the outside, and the push rod is pressed against the retaining piece within the body frame, and the engagement piece is pushed through the push rod. A spring that exerts a spring force in a direction to cause the body frame to protrude downward, and a spring that exerts a spring force in a direction to rotationally displace the retaining piece to a removable position where the back surface is an inclined surface are provided. Features: Door fixing device for double doors.