JPH021418Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to the structure of a latch device for a pivotable door in lockers, cabinet furniture, etc.

[Conventional technology and its problems]

This type of latch device has one end of the door rotatably attached to the right or left side of the opening in the furniture body, such as a locker, via a hinge. At both ends, latch claws are provided that are biased to protrude so as to be able to engage and disengage from engaging portions provided at both upper and lower ends of the front surface of the furniture body, and a latch shaft that is attached to the latch claws is provided inside the door. Generally, the latch shaft is rotatably supported, and the latch shaft is connected to a finger hook member in a pull frame that opens on the front side of the door.

By the way, conventional latch devices are integrally assembled to the door so that they cannot be easily disassembled and assembled, so it takes time and effort to assemble the latch device to the door, which increases the cost required for assembly. In addition, when the door is removed from the furniture body and assembled on site, as in the case of prefabricated furniture, the latch claws and pull frame may be partially attached to the back side of the pivotable door. When the door is disassembled from the furniture body and transported, the portion that protrudes from the back of the door is likely to be damaged by hitting external objects as described above.

In order to prevent this damage, when packing the door, it is necessary to protect the part that protrudes from the back of the door, which requires a large amount of cost and is bulky.

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems by configuring the latching device on the door so that it can be assembled to the door very easily.

[Means to solve the problem]

In order to achieve this purpose, the present invention provides a pivot type door which is rotatably attached to the front side of the opening of the furniture body via a hinge on either the left or right side, and the back side of the door is Edge plates protruding from the back surface of the door are provided at the upper and lower ends of the door, while a pull hole opening into the surface of the door is provided on the other side of the door opposite to the hinge. A pull frame is detachably attached to the back side of the door, and a pair of upper and lower joint bodies having axes parallel to the rotation axis of the hinge are attached to the pull frame so as to be freely rotatable about the axes. A latch lever for rotating the upper and lower joint bodies is provided in such a manner that the tip of the latch lever extends into the pull hole, and a latch lever is provided on the back side of the door near the upper and lower edge plates. latch claws configured to be removably engaged with the furniture main body by rotation of the upper and lower joint bodies about the rotational axis are removably attached to the parts via supports, respectively;
In addition, an engagement hole drilled through the base ends of the upper and lower latch claws and an insertion hole drilled in both the upper and lower joint bodies of the pull frame are formed into non-circular holes, and the upper joint At least the upper and lower ends of the upper latch shaft, which is disposed to extend in the vertical direction between the body and the upper latch pawl, are formed into a non-circular cross section, and the upper latch shaft is inserted into the insertion hole of the upper joint body and the upper latch pawl. At least the upper and lower ends of the lower latch shafts, each of which is removably inserted into the mating hole and which is disposed so as to extend in the vertical direction between the lower joint body and the lower latch pawl, are formed to have a non-circular cross section. are removably inserted into the insertion hole of the lower joint body and the engagement hole of the lower latch pawl, respectively, and the upper and lower latch shafts are inserted into the upper and lower edge plates of the door, and the upper and lower latch shafts are engaged with the upper and lower latch pawls. A through hole for insertion into each hole is formed, and the through hole in the lower edge plate of the door is formed into the same non-circular hole as the engaging hole of the lower latch pawl. The through hole in the lower edge plate is set in a phase shifted from the engagement hole of the lower latch pawl when the lower latch pawl is positioned within the range of rotation angle by the latch lever, and the lower latch pawl is rotated by the latch lever. The structure is such that when the lower latch pawl is rotated out of the angular range, the lower latch pawl is in phase with the engagement hole of the lower latch pawl.

[Functions and effects of the idea]

With this configuration, a handle frame with both upper and lower joint bodies is attached to the back of the door, and the upper latch pawl and lower latch pawl are each attached with a support, and then the upper latch shaft is attached to the door. By inserting the upper latch shaft from the through hole in the upper edge plate so that it fits into both the engagement hole in the upper latch pawl and the insertion hole in the upper joint body,
The upper joint body and the upper latch pawl can be connected via the upper latch shaft.

On the other hand, by rotating the lower latch pawl outside the rotation angle range of the latch lever, the phase of the engagement hole in the lower latch pawl matches the phase of the through hole in the lower edge plate of the door. Then, by inserting the lower latch shaft from the through hole in the lower edge plate of the door so that the lower latch shaft fits into both the engagement hole in the lower latch pawl and the insertion hole in the lower joint body, the lower joint body is removed. and the lower latch pawl can be connected via the lower latch shaft,
Then, by returning the lower latch pawl to within the rotation angle range of the latch lever, the phase of the cross section at the lower latch shaft and the phase of the through hole in the lower edge plate will be out of phase. It can be installed without falling through the hole in the lower edge plate.

Also, by reversing the order described above, the door can be disassembled first.

In other words, according to the present invention, the latch device can be attached to the door by attaching the pull frame with the upper and lower joint bodies and the upper and lower latch claws to the back of the door, and then inserting both the upper and lower latch shafts. Since the door can be assembled by hand, when the door is transported after being removed from the furniture body, the cost required for packaging the door due to the latch device can be reduced, and
The packaging can be made low-volume, and even when the door is not removed from the furniture body, the cost required for assembling the latch device to the door can be significantly reduced.

〔Example〕

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

In the figure, reference numeral 1 denotes a rocker body made of a thin metal plate, and symbol 2 denotes a rocker body that is rotatable and detachable from the front opening of the rocker body 1 via a pair of upper and lower hinges 3, 3a. Each door 2 has a front plate 4 whose four circumferential side edges are bent in a U-shape on the back side, and a front plate 4 on the inner periphery of the bent edge of the front plate 4. It is formed into a hollow shape with a back plate 5 which is fitted and fixed in parallel.

The back plate 5 of the door 2 has a rectangular shape for inserting a synthetic resin pull frame 6 on the free end side opposite to the pair of upper and lower hinges 3, 3a, which are the pivot points to the rocker body 1. Hole 7 is drilled, and top plate 4
A pull hole 8 of the pull handle frame 6 is opened in the pull handle frame 6 .

A pull frame 6 inserted through a rectangular hole 7 in a back plate 5 of the door 2 is detachably attached. The installation of this handle frame 6 involves attaching the handle frame 6 to the front plate 4 and back plate 5.
It may be held between the cover body 9 which is detachably attached to the cover body 9, or may be screwed to the back plate 5, the front surface 4, etc.

Reference numerals 10 and 10a indicate a pair of upper and lower supports that are removably attached to the upper and lower ends of the free end side of the door 2 with screws 14, etc. Hook-shaped latch claws 11, 11a are rotatably provided to removably engage with the engagement hole 13 in 1. , is always urged to engage with the engagement hole 13.

Reference numerals 15 and 15a indicate the axes of both hinges 3 and 3.
It shows a pair of upper and lower latch shafts arranged parallel to the rotation axis by a, and both upper and lower latch shafts 15, 15
The symbol a connects the upper and lower latch pawls 11, 11a and a pair of upper and lower joint bodies 16, 16a that are attached to the pull frame 6 as described later, and the upper and lower latch shafts 15, 15a Both ends of each are formed to have a non-circular cross section such as a rectangular cross section.

Correspondingly, both the upper and lower latch claws 11,1
Engagement holes 17, 17 drilled through the base of 1a
a, and both upper and lower edge plates 18 and 19 of the door 2
The through holes 20 and 21 formed in the respective upper and lower latch shafts 15 and 15a are also formed into non-circular holes having substantially the same shape as the non-circular cross section at both ends of the upper and lower latch shafts 15 and 15a.

At this time, when inserting the lower latch shaft 15a from the through hole 21 of the lower edge plate 19 of the door 2 into the engagement hole 17a of the lower latch pawl 11a, as shown in FIG.
is further moved in the release direction by an appropriate angle θ than within the rotation range (range between the position shown by the solid line and the position shown by the two-dot chain line) in which the engagement is released with respect to the engagement hole 13 in the rocker main body 1. When in the rotated position (the position indicated by the dashed line), the phase of the non-circular through hole 21 in the lower edge plate 19 matches the phase of the non-circular engaging hole 17a in the lower latch pawl 11a, and the lower latch The claw 11a is the engaging part 1 in the rocker body 1.
3, the phase of the non-circular through hole 21 in the lower edge plate 19 and the phase of the non-circular engaging hole 17a in the lower latch pawl 11a are shifted. Configure it as follows.

Upper and lower both sides 22, 22a of the handle frame 6
, joint bodies 16, 16a are rotatably supported at positions on the axes of the upper and lower latch shafts 15, 15a, respectively, and the upper end of the upper joint body 16 of the upper and lower joint bodies 16, 16a, and lower joint body 16a
Non-circular insertion holes 23, 23a are formed in the lower ends of the latch shafts 15, 15a, respectively, into which the ends of the non-circular cross-sections of the upper and lower latch shafts 15, 15a are removably fitted.

Further, at the lower end of the upper joint body 16 and at the upper end of the lower joint body 16a, joint holes 24, 24a each having a non-circular cross-sectional shape such as an elliptical cross-section are provided, which are aligned with the axes of the upper and lower latch shafts 15, 15a. At both upper and lower ends of the latch lever 25, which is disposed between the upper and lower sides 22, 22a of the pull body 6 so as to look into the pull hole 8,
Shaft portions 26, 26a with non-circular cross sections are each integrally formed, and both shaft portions 26, 26a are connected to joint holes 24, 24a in both upper and lower joint bodies 16, 16a.
By inserting the upper and lower joint bodies 16, 16a into each other, the latch lever 25 connects the upper and lower joint bodies 16, 16a.

At this time, for example, the pull frame 6 with the latch lever 25 and the lower joint body 16a assembled in advance
into the rectangular hole 7, and then insert the handle frame 6 into the rectangular hole 7.
The dimension l2 between the upper surface of the handle frame 6 and the upper surface of the rectangular hole 7 is set to the length dimension l of the upper joint body 16 so that the upper joint body 16 can be incorporated into the upper joint body 16.
Make it greater than 1.

In addition, in the illustrated embodiment, the handle frame 6
A finger hook member 27 whose base end is rotatably pivoted between the upper and lower both sides 22, 22a with a pin 27a.
by arranging the finger hook member 27, bringing the front part of the middle part of the finger hook member 27 into contact with the tip of the latch lever 25, and letting the finger hook member 27 look into the pull hole 8.
Although a case is shown in which the latch lever 25 is rotated via the finger hook member 26, in other embodiments, the finger hook member 27 is eliminated and the latch lever 25 is rotated.
It is also possible to configure the handle so that only the handle can be seen into the handle hole 8. Further, the upper and lower joint bodies 16, 16a are provided with a rear side substantially perpendicular to the front plate of the door 2 when the upper and lower latch claws 11, 11a are engaged with the engagement holes 13 in the locker body 1. While the protrusions 28, 28a are provided so as to protrude in the direction, by locking the cylinder lock 29 attached to the base of the pull frame 6, the bolt rod 30 can be moved along both upper and lower sides 22, 22a of the pull frame 6. The sliding U-shaped stop body 31 is advanced, and the tip of the stop body 31 touches the protrusion 2 on both the joint bodies 16, 16a.
8, 28a, as shown in FIG. 7, the joint bodies 16, 16a may be prevented from rotating and the door may be locked.

In this configuration, in order to assemble the latch device to the door 2, first, both the upper and lower latch claws 11, 1
1a together with the torsion springs 12, 12a into the respective supports 10, 10a, and both the supports 1
0 and 10a are attached to the back surface of the door 2 with screws 14 or the like. Next, the pull frame 6 to which the lower joint body 16a and the latch lever 25 have been attached in advance is attached to the door 2.
The upper joint body 16 is attached to the back side of the handle frame 6.
(In this case, the pull frame 6 may be attached to the door 2 with the upper and lower joint bodies 16, 16a and the latch lever 25 assembled in advance), and then the upper latch shaft 15 is attached. , by inserting the upper latch shaft 15 through the through hole 20 in the upper edge plate 18 of the door 2 so that it fits into both the engagement hole 17 in the upper latch pawl 11 and the insertion hole 23 in the upper joint body 16. Joint body 16
and the upper latch pawl 11 can be connected via the upper latch shaft 15.

Then, the lower latch pawl 11a is rotated in the release direction by an appropriate angle θ further than within the rotation range in which it is disengaged from the engagement hole 13 in the rocker body 1, as shown by the dashed line. Therefore, with the phase of the engagement hole 17a in the lower latch pawl 11a matching the phase of the through hole 21 in the lower edge plate 19 of the door 2, the lower latch shaft 15a is inserted into the lower edge plate 19 of the door 2. By inserting the lower latch shaft 15a from the through hole 21 so as to fit into both the engagement hole 17a in the lower latch pawl 11a and the insertion hole 23a in the lower joint body 16a, the lower joint body 16a and the lower latch pawl 11a are connected. can be connected to each other via the lower latch shaft 15a, and then the lower latch pawl 11a is returned to the rotation range in which it is disengaged from the engaging portion 13 of the rocker body 1. Since the phase of the cross section of the latch shaft 11a is out of phase with the phase of the through hole 21 in the lower edge plate 19, the lower latch shaft 15a is
It can be installed without falling out from the through hole 21 at 9.

The upper and lower latch shafts 15, 15a have respective upper and lower end portions extending over an appropriate length into insertion holes 23, 23 in the upper and lower joint bodies 16, 16a.
a, and the engagement holes 17, 17a in both the upper and lower latch claws 11, 11a, are non-rotatable, and
Since it is sufficient that the upper and lower latch shafts 15, 15a can be inserted in a detachable manner, only the upper and lower ends of the latch shafts 15, 15a have a non-circular cross section such as a square or an ellipse, and the middle part between the upper and lower ends is shaped like the non-circular shape. It may also be formed to have a circular cross section inscribed in .

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of a locker with a door, FIG. 2 is a partial plan view of FIG. Figure 5 is a cross-sectional view of Figure 3.
6 is a cross-sectional view of FIG. 3,
FIG. 7 is an enlarged sectional view taken from - in FIG. 3, FIG. 8 is an enlarged sectional view taken from - in FIG. 3, and FIG. 9 is an enlarged sectional view taken from - in FIG. 3. 1...Rotscar body, 2...Door, 4...Door front plate, 5...Door back plate, 6...Handle frame, 10,10
a...Support, 11, 11a...Latch claw, 1
2, 12a... Torsion spring, 13... Engaging portion of rocker body, 15, 15a... Latch shaft, 16, 1
6a...Joint body, 17, 17a...Latch pawl engagement hole, 18...Upper edge plate of door, 19...Lower edge plate of door, 20, 21...Through hole, 23, 23a...Joint Body insertion hole, 25... Latch lever.

Claims (1)

[Scope of utility model registration request] In a pivoting door that is rotatably attached to the front surface of the opening of the furniture body via a hinge on either the left or right side, the upper and lower ends of the back surface of the door are provided with a Edge plates protruding from the back side are each provided, while on the other side of the left and right sides of the door opposite to the hinge, a handle frame having a pull hole opening on the surface of the door is detachable from the back side of the door. A pair of upper and lower joint bodies having axes parallel to the rotation axis of the hinge are provided on the handle frame so as to freely rotate about the axes, and both upper and lower joint bodies have a A latch lever for rotating the latch lever is provided so that the tip of the latch lever extends into the pull hole, and a latch lever for rotating the upper and lower joint bodies is provided on the back side of the door in a portion near the upper and lower edge plates. Latch claws configured to removably engage with the furniture body by rotation around a moving axis are each removably attached via a support, and base ends of both the upper and lower latch claws are provided. An engagement hole drilled through the handle frame and an insertion hole drilled in both the upper and lower joint bodies of the pull frame are formed into non-circular holes, and the upper and lower joint holes are formed between the upper joint body and the upper latch pawl. At least the upper and lower ends of the upper latch shaft arranged to extend in the direction are formed to have a non-circular cross section, and these are removably inserted into the insertion hole of the upper joint body and the engagement hole of the upper latch pawl, respectively. , at least the upper and lower ends of the lower latch shaft, which is disposed to extend in the vertical direction between the lower joint body and the lower latch pawl, are formed into a non-circular cross section, and this is connected to the insertion hole of the lower joint body and the lower part. The upper and lower edge plates of the door have through holes for inserting the upper and lower latch shafts into the locking holes of the upper and lower latch pawls. The through hole in the lower edge plate of the door is formed into the same non-circular hole as the engagement hole of the lower latch pawl, while the through hole in the lower edge plate is
When the lower latch pawl is positioned within the rotation angle range of the latch lever, the lower latch pawl is shifted in phase with respect to the engagement hole of the lower latch pawl, and the lower latch pawl is rotated outside the rotation angle range of the latch lever. 1. A latch device for a door in furniture, etc., characterized in that the lower latch pawl is in phase with the engagement hole of the lower latch pawl.