JPH0140927Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a latch device for a rotating door of furniture such as a cabinet or locker.

Conventionally, this type of latch device has a rotating latch rod equipped with latch claws at both ends that can be engaged with engagement holes on the furniture body side, on the inside of a rotary opening/closing door for the front surface of an opening in a furniture body such as a cabinet. The latch rod is freely pivoted, and a spring is provided on the latch rod to bias both latch claws so that they protrude toward the back side of the door, so that when the door is closed, both latch claws engage the engagement holes on the furniture body side. At the same time, the handle member fixed to the latch rod is inserted into the handle hole of the door, and the handle member is inserted into the handle hole from the outside of the door. Rotate the latch rod by operating it inside the
The door is configured to open by removing the latch claw from the engagement hole in the furniture body.

However, in this case, the latch claw that engages with the engagement hole on the furniture body side is always biased to protrude from the back of the door, so the door with the latch device cannot be attached to the furniture body, as in a prefabricated cabinet. When transporting a door with a latch device removed from the furniture and attaching it to the furniture itself, the latch claw protruding from the back of the door is likely to be damaged during transport, and if it is damaged. Each repair has to be done one by one, which requires a lot of effort, and packing the door in such a way that the latch claws that protrude from the back of the door are not damaged not only requires a great deal of expense, but also requires a lot of effort. However, by assembling the latch device to the door at the furniture installation site, the latch claws will not be damaged during transportation, but it will be difficult to attach the bearing member of the latch rod to the door, and the latch device will not be damaged during transportation. Since there are more assembly points on site, such as attaching the latch pawl and pull member to the rod, the effort and cost required for this increases rather than when transporting the door with the latch device assembled as described above. So it was warm.

In such cases, the present invention enables the door to be transported with both latch claws retracted into the thickness of the door, by simply performing simple assembly work at the furniture installation site. be.

An example of the present invention will be described below with reference to the drawings of the embodiment. In the drawing, 1 is a locker body made of a thin metal plate, and 2 is a locker body 1 that rotates at one end with a pair of upper and lower hinges 3, 3'. Each door is made of a thin steel plate and is rotatable and detachable. It is formed into a hollow shape with a back plate 5 fitted and fixed to the inside of the bent edge portion 4' of the top plate 4 so as to be parallel to the top plate 4.

The back plate 5 of the door 2 has a locker main body 1
A rectangular hole 6 for inserting the pull mechanism is provided on the open end side opposite to the pivoting side and at a position approximately halfway between the upper and lower ends.
A handle frame 8 having a handle hole 7 opening in the front plate 4 is inserted into the rectangular hole 6, and the handle frame 8 is inserted into the rectangular hole 6.
is held and fixed between the cover body 9 and the front plate 4 by a cover body 9 removably attached to the back plate 5 so as to close the rectangular hole 6 (in this case, the handle frame 8
may be removably fixed to the door 2 by other means such as screws).

On the other hand, between the front plate 4 and the back plate 5 of the door 2, a pair of upper and lower latch rods 10, 10' are arranged on the same axis along the side surface of the open end opposite to the hinges 3, 3'. The upper end of the upper latch rod 10 is rotatably supported by a bearing 11, and the latch pawl 13 protruding from the slit 12 is fixed to the upper end, while the lower end of the lower latch 10' is supported by a bearing 11. 11', and has a slit 1 at its lower end.
A latch pawl 13' protruding from 2' is fixed so that both latch pawls 13, 13' engage with engagement holes 14, 14' in the locker body 1 when the door 2 is closed.

Further, a joint rod 15 extending in the axial direction of the upper and lower latch rods 10, 10' is rotatably supported on the pull frame 8 at a position on the axis of the upper and lower latch rods 10, 10'.
5 is integrally provided with a pull piece 16 extending into the pull hole 7, and the cross section of the lower end of the upper latch rod 10 and the upper end of the lower latch rod 10' is made into a non-circular cross section such as a square or an ellipse. Forming and connecting portion 17,1
7', and at both upper and lower ends of the joint rod 15 there are connection parts 17, 1 of the latch rods 10, 10'.
Insertion holes 18, 18' having the same non-circular cross-sectional shape as 7' are bored, and connecting parts 17, 1 are inserted into these holes 18, 18'.
By removably inserting the latch rod 7', the two latch rods 10, 10' and the joint rod 15 are removably connected so that they can rotate together. In this case, the depth H of one insertion hole in the joint rod 15, for example, the upper insertion hole 18, is set to the insertion length h at which the connection part 17 of the upper latch rod 10 fits into the upper hole 18, and the lower insertion hole It is formed to have a dimension equal to or longer than 18' plus an insertion length h' into which the connecting portion 17' of the lower latch rod 10' fits, that is, h+h'. A spring 20 is installed between the lever 19 integrally projecting from the joint rod 15 and the pull frame 8 or the back plate 5 of the door 2, which biases both the latch claws 13, 13' into the projecting state. It is detachably mounted.

In addition, numeral 21 indicates a stopper piece for preventing further rotation when both latch claws 13, 13' are in the protruding state, and 22 indicates a stopper piece for locking the door 2 so that it cannot be opened when it is closed. When the key is inserted into the key hole 22' of the cylinder lock 22 and turned, the bar 22'' moves forward so as to come into contact with the lever 19, thereby preventing the joint rod 15 from rotating. When the key is turned in the opposite direction, the bar 22'' moves back away from the lever 19, thereby unlocking the door.

In this configuration, when the open door 2 is rotated closed relative to the locker body 1 and then pressed, both latch claws 1 held in a protruding state by the spring 20
3 and 13' are the engagement holes 14 in the rocker body 1,
14' against the force of the spring 20, and then fits and engages, so the door 2 is locked in the closed state of the locker body 1. To open the door 2, If you insert your finger into the handle hole 7 in the door 2, put your fingertip on the handle piece 16, and pull the handle piece 16 so as to rotate it toward you, the rotation of the handle piece 16 will cause the joint rod 15 and both latch rods to 10,10'
The latch claws 13, 13' are connected to the engagement hole 1 in the locker body 1 as shown by the two-dot chain line in FIG.
4, 14', the door 2 can be opened by disengaging from the locker body 1.

When transporting the door 2 while being removed from the locker main body 1, remove the cover body 9 on the back side of the door 2 removed from the locker main body 1, remove the fixation of the handle frame 8 to the door 2, and remove the spring. 2
0, the pull frame 8 is moved in the direction of the upper latch rod 10 as shown in FIG.
In this case, the depth dimension H of the upper insertion hole 18 in the joint rod 15 pivotally supported on the pull frame 8 is
Lower insertion hole 1 to insertion length h of connection part 17 to 8
8' is equal to or longer than the insertion length h' of the connecting portion 17' to the upper latch rod 1 as described above.
By moving in the direction of 0, the lower latch rod 1
The connecting portion 17' of 0' comes out of the lower insertion hole 18' in the joint rod 15. Therefore, by tilting the axis of the lower latch rod 10' with respect to the upper latch rod 10 and then moving the pull frame 8 in the direction of the lower latch rod 10', the connecting portion 17 of the upper latch rod 10
comes out of the upper insertion hole 18 of the joint rod 15, so that the pull frame 8 with the joint rod 15 can be separated from the door 2, while both latch rods 10, 10'
can be separated. In this separated state, both latch rods 10, 10' can freely rotate, and each latch pawl 13, 13' can be retracted through the slit 12, 12' into the thickness of the door 2. Therefore, the door 2 can be transported with both latch claws 13, 13' not protruding.

To assemble the locker at the installation site, first insert the pull frame 8 with the joint rod 15 into the rectangular hole 6, and then insert the latch claws of the upper and lower latches 10, 10'.
Move the pull frame 8 in the direction of the upper latch rod 10 as shown in FIG. 9 so that the connecting portion 17 of the upper latch rod 10 is inserted into the upper insertion hole 18 of the joint rod 15 with 3 and 13' protruding. After that,
Align the connecting portion 17' of the lower latch rod 10' with the lower insertion hole 18' of the joint rod 15, and then move the lower latch rod 1 until the pull frame 8 is in the correct mounting position.
By moving in the direction of 0', both latch rods 10,
10', and both latch rods 10, 10' are connected to the joint rod 5 so as to rotate integrally therewith. Therefore, after installing the spring 20, it is only necessary to attach the cover body 9 and fix the handle frame 8 in a predetermined position.
At the installation site, the connecting parts 17, 17' of both latch rods 10, 10' must be inserted into the insertion holes 18, 18' at both ends of the joint rod 15 of the pull frame 8, and the spring 2
0 and fixing the handle frame 8, both latch rods 10, 10' to the door 2 can be attached.
, the latch claws 13, 13' to both latch rods 10, 10', and the joint rod 15 to the pull frame 8 can be done at ROTSUKA's manufacturing factory, so they can be done at the installation site. The number of assembly steps can be significantly reduced.

Note that the drawings of the above embodiment show a case where the joint rod 15 is constructed by integrally joining a part having the pull piece 16 and the stopper piece 21 and a part having the insertion holes 18, 18'. It was hot, but
These may be constructed integrally, and the depth dimension of the lower insertion hole 18' at the lower end of the joint rod 15 may be formed to be the same as the depth dimension H of the upper insertion hole 18. Disassembly and assembly can also be performed by moving the frame 8 downward in FIG.
It's more convenient.

In summary, the present invention is to removably attach a pull frame having a pull hole that opens on the front side of the door to the back side of a rotary opening/closing type door whose one side edge is pivotally attached to the front side of the furniture body. is provided with a joint rod having an axis parallel to the side edge of the open end of the door, rotatable about the axis, and a handle piece for rotating the joint rod extending through the pull hole. A pair of latch rods are disposed on the back side of the door on both sides sandwiching the joint rod on the same axis as the axis of the joint rod, and both latch rods are rotatably supported on the door. The outer ends of both latch rods farthest from the joint rod are each provided with a latch pawl that engages with the furniture body, while the inner ends of both latch rods closest to the joint rod are provided with a connection having a non-circular cross section. , and insertion holes having the same non-circular cross-section as the connecting portions are bored in the axial direction at both ends of the joint rod, and the connecting portions of both latch rods are removably fitted into both insertion holes. The axial depth of at least one of the two insertion holes at both ends of the joint rod is the insertion length of the connection part into that one insertion hole, and the insertion length of the connection part into the other insertion hole. If the door is to be transported with the door removed from the furniture body, the handle frame must be attached to the door after the handle frame is attached to the latch rod axis. By moving the door in this direction, the latch claws on both latch rods can be retracted from the back of the door, so there is no risk of damaging the latch claws when transporting the door, which simplifies packaging and reduces the bulk of the package. This makes it possible to significantly reduce the cost required for transportation, while the disassembly before packaging and assembly at the furniture installation site are extremely simple, requiring only attachment and detachment of the pull frame to the door and movement of the latch frame of the pull frame in the axial direction. It has effects that can be achieved through manipulation.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front view of a rocker equipped with a door, Fig. 2 is a plan view of Fig. 1,
Figure 3 is a back view of the door, Figure 4 is a cross-sectional view of Figure 3, Figure 5 is a cross-sectional view of Figure 3, and Figure 6 is a cross-sectional view of Figure 3.
The figure is a sectional view of FIG. 3, FIG. 7 is an enlarged sectional view of FIG. 3, FIG. 8 is an enlarged sectional view of FIG. 3, and FIG. 9 shows the state of disassembly and assembly. It is a back view of the door. 1... Locker body, 2... Door, 3, 3'... Hinge, 7... Pull hole, 8... Pull frame, 10, 10'
...Latch rod, 11,11'...Bearing, 13,1
3'... Latch claw, 15... Joint rod, 16... Pull piece, 17, 17'... Connection part, 18, 18'...
Insertion hole, 20...spring.

Claims (1)

[Scope of utility model registration request] A pull frame having a pull hole that opens at the front of the door is removably attached to the back side of a rotary opening/closing type door whose one side edge is pivotally attached to the front side of the furniture body. A joint rod having an axis in a direction parallel to the edge is provided so as to be rotatable about the axis, and a handle piece for rotating the joint rod is provided so as to look into the pull hole, and the back side of the door A pair of latch rods are arranged on both sides of the joint rod on both sides, and the latch rods are rotatably supported on the door, and the joint rods of both latch rods are arranged on the same axis as the axis of the joint rod. The outer ends furthest from the latch rods are each provided with a latch pawl that engages with the furniture body, while the inner ends of both latch rods close to the joint rod are formed into a connecting portion with a non-circular cross section, Insertion holes with the same non-circular cross-section as the connecting portions are bored in the axial direction at both ends of the joint rod, and the connecting portions of both latch rods are removably inserted into the insertion holes. The depth dimension in the axial direction of at least one of the two insertion holes is equal to the sum of the insertion length of the connection part into the one insertion hole and the insertion length of the connection part into the other insertion hole. or larger door latch device for furniture, etc.