JPH0729253U - Door closing device for furniture - Google Patents

Abstract

(57) [Abstract] [Purpose] The latch claw is rotated regardless of the connecting rod that is rotated by the operation of the handle lever, so that the latch claw is securely locked in the locking hole. [Structure] A connecting rod 5 is vertically installed on the door 2 so as to be rotated by operating a handle lever. A cylindrical base portion 8 of a latch claw 7 that is locked by a biasing force of a spring 9 into a locking hole 3 formed in the furniture body 1 is rotatably engaged with the tip of the connecting rod 5. Tubular base 8
Is provided with a moving groove 12 along the peripheral side thereof, and the moving groove 1
2 is engaged with a protrusion 11 provided laterally on the connecting rod 5 side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, a connecting rod which is rotated by the operation of a handle lever is vertically installed on a door, and a latch claw which is locked at a tip of the connecting rod by a spring force in a locking hole formed in a furniture body is provided. The present invention relates to a door closing device for furniture.

[0002]

[Prior art]

 A structure in which a connecting rod that is rotated by the operation of the handle lever of the door is installed vertically, and a latch claw that locks with a spring force in the locking hole formed in the furniture body is installed at the tip of the connecting rod. In this conventional example, the connecting rod and the latch claw rotate integrally with each other, and by operating the handle lever, the latch claw is rotated via the connecting rod against the bias of the spring. Open the door by removing it from the locking hole on the main body side, operate the handle lever when the door is closed to lock the ratchet pawl in the locking hole, and maintain the locked state by the spring bias. It is

[0003]

[Problems to be solved by the device]

 According to the above-mentioned conventional example, when the furniture is provided with the locking device separately from the closing device configured by the engagement / disengagement relationship of the latch claw with the locking hole, the latch claw is in a semi-locked state in the locking hole. That is, when the locking operation is performed by the locking device in the so-called half-door state, the unlocking operation must be performed before the half-door state is corrected.

The present invention has been made in view of such a point.

[0005]

[Means for Solving the Problems]

 In a structure in which a connecting rod that is rotated by the operation of a handle lever is vertically installed on the door, and a latch claw that locks a locking hole formed in the furniture body by a spring force is provided at the tip of the connecting rod, A tubular base portion of the latch claw is rotatably engaged with the tip of the connecting rod, and a protrusion provided laterally on the connecting rod side is engaged with a moving groove provided along the circumferential side of the tubular base portion. It will be configured.

[0006]

【Example】

 The drawings show an embodiment of a door closing device for furniture according to the present invention, FIGS. 1 to 5 show a first embodiment, and FIG. 6 shows a second embodiment.

In each of the embodiments, the door 2 is screwed to the furniture body 1 so as to be openable and closable, and the engaging hole 3 is provided on the furniture body 1 side, while the handle lever 4 is provided at the intermediate portion on the door 2 side. The connecting rod 5 integrally provided with is vertically rotatably provided, and the tip of the connecting rod 5 is engaged with the cylindrical base portion 8 of the latch claw 7 supported by the support frame 6 provided on the door 2. The latch claw 7 is locked in the locking hole 3 by the urging force of the coil spring 9 wound around the cylindrical base 8.

[0008]

[First embodiment]

 In the first embodiment, the latch claw 7 is provided at the tip of the connecting rod 5 via the intermediary cylinder 10. That is, the intermediary tube 10 is rotatably engaged with the tubular base 8 of the latch claw 7 interposed between the upper and lower pieces 6a and 6b of the support frame 6 through the upper piece 6a. The intermediary cylinder 10 has a hollow section having a rectangular cross section, and a connecting rod 5 having a cross section substantially similar to that of the hollow section is engaged with the latch claw 7 at the tip of the connecting rod 5.

In the figure, reference numeral 11 denotes a protrusion laterally provided on the peripheral side of the intermediary cylinder 10, and the protrusion 11 is engaged with a moving groove 12 provided on the latch claw 7 along the peripheral side of the cylindrical base portion 8. It is matched.

The coil spring 9 is wound around the cylindrical base 8 and assembled, one end of which is locked to the latch claw 7 and the other end of which is locked to the lower piece 6b of the support frame 6, The latch claw 7 is biased to rotate in the locking direction with respect to the locking hole 3.

Then, the latch claw 7 is locked in the locking hole 3 and the closed state of the furniture main body 1 by the door 2 can be obtained. At this time, the coil spring 9 urges the latch claw 7 to move. One side wall 12a of the groove 12 is in contact with the protrusion 11 provided on the connecting rod 5 side (FIG. 3). In this state, when the handle lever 4 is operated to rotate the connecting rod 5, the intermediary cylinder 10 attached to the connecting rod 5 is rotated, and the protrusion 11 provided on the intermediary cylinder 10 is rotated. The latch claw 7 is rotated against the coil spring 9 to open the closed state of the door 2 (FIG. 4). Then, when the door 2 is placed in the closed state, the handle lever 4 is operated to place the latch claw 7 in the normal position, and the latch claw 7 is locked in the locking hole 3 so that the latch claw 7 shown in FIG. The closed state can be obtained by checking the closed state, interrupting the operation of the operation lever 4, and operating a lock device, which is a separate device, as shown in FIG. Therefore, the protrusion 11 is located in the middle of the moving groove 12.

At this time, when the door 2 is pressed toward the main body 1, only the latch claw 7 is rotated against the bias of the coil spring 9 and is locked in the locking hole 3 to keep the door 2 closed. Obtained (Fig. 3).

[0013]

[Second embodiment]

 In the second embodiment, the connecting rod 5 has a circular cross section, and the protrusion 11 is directly provided on the peripheral side of the connecting rod 5 without the intermediary cylinder 10 in the first embodiment. . Since the remaining points are the same as those in the first embodiment, the description will be omitted.

[0014]

[Effect of device]

 Since the present invention is configured as described above, it is possible to rotate the latch claw independently of the connecting rod, and therefore, the latch claw is locked in the locking hole on the door body side in a halfway state. Even if the door is locked, it can be locked in the normal position by simply pressing the door, and therefore, even if the door is locked by the locking device, the door can be closed without unlocking. It is practical.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential members of a first embodiment.

FIG. 2 is a sectional view of the first embodiment.

FIG. 3 is a schematic explanatory view of the first embodiment when the door is closed.

FIG. 4 is a schematic explanatory view of the first embodiment during opening the door.

FIG. 5 is a schematic explanatory view of the first embodiment in a half-door state.

FIG. 6 is a sectional view of the second embodiment.

[Explanation of symbols]

 1 Furniture Main Body 2 Door 3 Locking Hole 4 Handle Lever 5 Connecting Rod 7 Latch Claw 8 Cylindrical Base 11 Protrusion 12 Moving Groove

Claims (1)

[Scope of utility model registration request] 1. A door is provided with a connecting rod which is vertically rotated by an operation of a handle lever, and a latch claw which is engaged with an engaging hole formed in a furniture body by a spring force is provided at a tip of the connecting rod. In the installed structure, a tubular base portion of the latch claw is rotatably engaged with the tip of the connecting rod, and is laterally provided on the connecting rod side in a moving groove provided along the circumferential side of the tubular base portion. A door closing device for furniture having a protrusion engaged.