JPH0526206Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a latch device for a pivotable door in furniture such as lockers and cabinets.

[Conventional technology]

A latch device for a horizontally rotating door in this type of furniture has been disclosed in Japanese Utility Model Application Publication No. 111771/1983, etc.
In addition, as shown in FIGS. 11 and 12, a pull frame 41 consisting of a pull hole 42 surrounded by a surrounding wall 40a is installed in the hollow portion of the door 40, and a pull lever 43 is horizontally rotatably mounted on the pull frame 41. On the other hand, a pair of upper and lower latch rods 44a and 44b having a non-circular cross section are rotatably supported around their axes above and below the pull frame 41 in the hollow portion of the door 40, and the pull lever By fitting and engaging the rotation shaft of 43 with both latch rods 44a, 44b, the upper and lower latch rods 44a, 44b can be rotated by the rotation operation of the pull lever 43. While a latch claw (not shown) is disengaged from the furniture body, a lock 45 is fixed to the pull frame 41, and the pull lever 4 is unlocked by unlocking from the front of the door 40.
3 so that it cannot be rotated or unlocked.

When attaching the pull frame 41 to the door 40, the engagement hole 4 on the rotation axis of the pull lever 43 is
3a, 43b, the depth dimension (l4) of one engagement hole 43a, the other engagement hole 43b and latch rod 43b.
By setting the dimensions so that there is a margin larger than the mating depth dimension (l5),
The upper and lower latch rods 44a and 44b can be fitted onto the pull lever 43 by vertically sliding the pull frame 41, and the back cover 47 is screwed to the back plate 40b of the door 40. In this case, double-sided adhesive tape 48 is pasted on the front side of the handle frame 41 near the handle hole 42, and the handle lever 43
After fitting the rotation shafts into the upper and lower latch rods 44a and 44b, the pull frame 41 is adhesively fixed to the front plate 40a of the door 40 using the double-sided adhesive tape 48.

[The problem that the idea attempts to solve]

With this structure, the door 40 can be assembled into a hollow shape and then the handle frame 41 can be attached, and the latch claws provided at the ends of the latch rods 44a and 44b can be transported while being stored in the hollow part of the door 40. Therefore, while this has the advantage of preventing the latch pawl from being damaged during transportation, there is a problem in that the attachment of the handle frame 41 is troublesome, as described below.

In other words, in this mounting form, the handle frame 4
1, with the area around the pull hole 42, that is, the area where the double-sided adhesive tape 48 is attached, in close contact with the front plate 40a of the door 40, insert the pull lever 43 into both latch rods 44.
a, 44b, the pull frame 41 often sticks to the front plate 40a when the pull lever 43 is engaged with the latch rods 44a, 44b, and it is difficult to accurately position the pull frame 41 in the predetermined position. It is troublesome to fix the handle frame 41, and since the back cover 47 is secured with screws, it is troublesome to attach the handle frame 41.

Furthermore, if there is a gap between the pull frame 41 and the back cover 47, the lock 45 will be pressed by the key when inserting the key into the lock 45 and unlocking it after the pull frame 41 is installed. , pull frame 4
There was also a problem in that the handle frame 41 was easily peeled off from the front plate 40a, and the handle frame 41 was likely to slide down or wobble after installation.

The object of the present invention is to make it possible to attach the handle frame very easily and firmly when attaching the handle frame to a door assembled in a hollow shape as described above.

[Means for solving the problem] In order to achieve this purpose, the present invention includes a latch claw that is attached to and detached from the furniture body in the hollow space between the front plate and the back plate of the pivotable door of the furniture. In addition to arranging a latch rod, a pull frame is provided on the back side of the door, and a pull hole is bored on the front side in the hollow part of the door, and a wall portion is provided rearwardly protruding around the pull hole. The handle lever is inserted into the hollow portion through the through hole of the face plate, and the pull lever is rotatably pivoted within the surrounding wall of the pull frame,
The latch rod is removably engaged with the rotating shaft of the pull lever, and the pull frame has a lock attachment part for fixing a lock that is operated for unlocking and locking from the front of the door, and is appropriately spaced laterally from the surrounding wall. On the front surface of the handle frame, near the lock attachment part, an adhesive part is formed to adhere to the front plate of the door, and on the back of the back plate of the door, a through hole of the back plate is formed. A back cover covering the handle frame is disposed so that its front surface is in contact with the rear surface of the surrounding wall of the handle frame, and hook-shaped hooks are inserted into and engaged with the back plate at appropriate locations on the periphery of the back cover. The engaging protrusion is provided to protrude forward, and the front surface of the back cover is provided with positioning means that fits into the vicinity of the surrounding wall of the pull frame and the lock attachment part.

[Functions and effects of the idea]

In this configuration, in order to attach the pull frame to the door, the pull frame is fitted into the hollow part of the door through the through hole in the back plate, and the rotation shaft of the pull lever is fitted into the latch rod using the same method as the conventional method. After that, the adhesive part formed near the lock attachment point is adhered to the front plate of the door, and then the back cover is attached and the handle frame is pressed and fixed. The adhesive portion may be formed by applying double-sided adhesive tape or applying an adhesive to either the handle frame or the door.

When installing it, the pull frame is temporarily fixed by gluing the adhesive part, but since the adhesive part was formed on the front side of the pull frame near the lock, in other words, the part far from the pull lever Even if the part of the handle frame around the pull lever is close to the front of the door, the adhesive part can be kept separate from the front panel of the door.
The work of fitting the pull lever onto the latch rod can be done extremely easily and reliably. In other words, the pull frame can be accurately and easily positioned without impairing the temporary fixing function of the pull frame by adhesion.

In addition, the back cover has hook-shaped engagement protrusions formed on its periphery that are engaged with the back plate of the door, and the back cover is attached using the elasticity of the engagement protrusions.
By simply pressing against the back plate of the door, it can be installed with one touch so that it cannot be moved in any direction, up, down, left, or right.

And when the back cover is attached,
Since the positioning means provided on the front side of the back cover fits into the surrounding wall and the lock attachment location of the pull frame, the pull frame cannot be moved in any direction, up, down, left or right with respect to the back cover, and the pull frame is , it will be attached to the door in such a way that it cannot be moved in any direction.

Therefore, according to the present invention, the pull frame can be easily and accurately positioned without impairing the temporary fixing function of the pull frame, and the back cover can be attached with one touch, making it possible to assemble the latch device extremely easily. have an effect. In addition, the back cover can be attached to the back plate of the door so that it cannot be moved in any direction, up, down, left, or right, and the handle frame is engaged with the back cover so that it cannot be moved in any direction (up, down, left, or right). Therefore, it is possible to reliably prevent the handle frame from shifting after installation.

In addition, the handle frame is glued to the front plate of the door near the lock attachment point, so even if the lock is pressed with a key during unlocking, the handle frame will not touch the front plate of the door. It does not peel off, and when opening the door, you put your finger on the handle lever and pull it toward you to rotate.When opening the door, it acts to attract the handle frame to the front panel of the door. Therefore, even if a gap occurs between the back cover and the handle frame, the handle frame will not separate from the front panel of the door when unlocking or opening the door, and the handle frame will remain intact after installation. It also has the effect of reliably preventing wobbling.

〔Example〕

Next, an embodiment in which the present invention is applied to a locker door will be explained based on the drawings (Figures 1 to 10). This figure shows a locker consisting of a door 3 which is horizontally rotatably pivoted to the edge of the opening.

The door 3 is formed in a hollow shape with a front plate 3a and a back plate 3b arranged in parallel and separated from each other as appropriate.
At the mid-height part located on the free end side of the door 3,
Two large and small round holes 4 and 5 are formed in the front plate 3a, spaced appropriately on the left and right sides, and a rectangular through hole 6 is formed in the back plate 3b. A pull frame 7 is fitted, and the pull frame 7 is pressed and fixed by a back cover 8 attached to the back plate 3b.

The handle frame 7 is formed to be horizontally elongated from side to side, and has a pull hole 10 surrounded by a horizontal U-shaped surrounding wall 7a at one end thereof.
The handle lever 11 is connected to a large diameter round hole 4 bored in the front plate 3a of the front plate 3a, and a pull lever 11 is disposed inside the surrounding wall 7a so that its tip edge faces the pull hole 10. It is supported horizontally rotatably via a pair of upper and lower joint rods 12 and 13, which are an example of a rotation shaft.

The upper and lower joint rods 12 and 13 are respectively connected to the surrounding wall 7.
Rectangular engagement protrusions 12a and 13 are rotatably fitted into the upper and lower plates of a, and are formed on the lower surface of the upper joint rod 12 and the upper surface of the lower joint rod 13, respectively.
a is irremovably fitted into engagement holes 11a formed on both upper and lower surfaces of the base of the pull lever 11.

In addition, on the front surface of the handle frame 7, around the handle hole 10, a combing material 14 such as rubber or sponge is stretched.

In the hollow part of the door 3, above and below the handle frame 7, there are vertical and longitudinal latch rods 15 made of square rods,
16 is rotatably supported around its axis by appropriate means, and the upper end of the upper latch rod 15 and the lower end of the lower latch rod 16 are engaged with and disengaged from engaging portions (not shown) formed on the rocker body 2. While attaching the flexible latch pawl 17, fit the lower end of the upper latch rod 15 into the square engagement hole 12b of the upper engagement rod 12, and the upper end 16 of the lower latch rod into the square hole 13b of the lower joint rod 13. By rotating the pull lever 11, the latch pawl 17 is released.
is adapted to engage and disengage from the engaging portion of the furniture body 2.

In this case, the upper and lower joint rods 12 and 13 are provided with a door 2
The arms 12c and 12b extend substantially parallel to the rear plate 3b.
A spring 18 is fitted between the ends of the arms 12c, 13c and the handle frame 7, so that the latch claw 17 is biased so as to always engage with the furniture body 2, and a stopper 19 protruding from the handle lever 11 is brought into contact with the handle frame 7,
The pull lever 11 is restricted so as not to rotate beyond a certain extent. Also, as shown in FIG. 5, the depth dimension (l1) of the rectangular engagement hole 12b in the upper joint rod 12 is
is deepened by a dimension (l2) greater than the fitting depth dimension (l3) between the lower joint rod 13 and the lower latch rod 16,
Once the upper joint rod 13 is fully fitted into the upper latch rod 15, the lower joint rod 13 can be fitted over the lower latch rod 16.

In addition, as a means for pivotally supporting the pull lever 11 so as to be horizontally rotatable, the joint rods 12 and 1 are used as in the embodiment.
3, but also the cross-sectional shape of the upper and lower latch rods 15, 16 and the engagement hole 1 of both joint rods.
It goes without saying that the cross-sectional shapes of 2c and 13c are not limited to rectangular shapes, but may be non-circular shapes.

A lock mounting rod 7b extending laterally is integrally connected to the surrounding wall 7a of the pull frame 7 as an example of a lock mounting portion, and a lock 20 is attached to the lock mounting rod 7b with a screw 2.
1, the keyhole of the lock 20 faces the front of the door through the small-diameter round hole 5 of the front plate 3a of the door 3, and the bar rod 22 of the lock 20 is placed so as to straddle the surrounding wall 7a from the side. It is formed into a bifurcated shape, and the upper and lower ends of the bifurcated bar rod 22 are connected to the upper and lower joint rods 12,
13 arms 12c, 13c, and unlock the lock 20 to move the bar rod 22 to the arms 12c, 13c.
By engaging and disengaging the door 3, the door 3 can be locked and unlocked.

And the lock mounting rod 7b in the pull frame 7
An adhesive part 7c parallel to the front plate 3a of the door 3 is formed at the tip of the lock 20, that is, in the vicinity of the attachment point of the lock 20, and a double-sided adhesive tape 23 is pasted on the adhesive part 7c. At the same time, the pull frame 7 is glued to the front plate 3a of the door 3, and a plate-shaped engagement piece 24 is provided rearwardly protruding from the tip of the lock mounting rod 7b so as to come into contact with the front surface of the back cover 8. are doing. Note that the lock mounting rod 7b may be formed so that its entirety is in close contact with the fan plate 3a of the door 3.

The back cover 8 is formed into a shallow box shape,
A pair of upper and lower guide pieces 25 that fit into the handle frame 7 are placed on one side of the front surface on the right side when viewed from the back of the door 3, as an example of positioning means that fits into the handle frame 7. Along with protruding,
On the other side of the back cover 8, a frame portion 26 is provided that protrudes forward so as to fit into the engagement piece 24 as an example of positioning means that fits in the vicinity of the attachment point in the shape of the handle frame 7. are doing.

Then, on the left and right side edges of the four circumferences of the back cover 8, there are hook-shaped vertically elongated engagement protrusions 27a and 27b that fit into the back plate 3b through the through hole 6, and on the upper and lower side edges of the back plate 3b. Hook-shaped engagement protrusions 29 are provided to project forward, respectively, and are adapted to fit into engagement holes 28 formed in holes 3b. In this case, by forming the tip surfaces of one vertically elongated engagement protrusion 27a and the engagement protrusions 29 on both upper and lower sides in an inclined shape, the other longitudinally elongated engagement protrusion 27b is fitted into the edge of the through hole 6. If you press the back cover 8 with
7a and engaging protrusions 29 on both upper and lower edges engage with the back plate 3b against its elasticity.

In the above configuration, in order to assemble the latch device, the door 3 is assembled into a hollow shape with the upper and lower latch rods 12 and 13 attached, and then the pull lever 1 is assembled.
1 and the lock 20 are attached to the handle frame 7 through the through hole 6 into the hollow part of the door 3, and the joint rods 12 and 13 of the pull lever 11 are fitted into the upper and lower latch rods 15 and 16 in the same manner as described above. In this state, the double-sided adhesive tape 23 is pressed against the front plate 3a to adhere it, and then the back cover 8 is attached to the back plate 3b by the method described above.

In this case, the handle frame 7 can be temporarily fixed to the front plate 3a with the double-sided adhesive tape 23, and the back cover 8 can be easily attached. Since it is provided at the tip of the latch rod 1, the joint rods 12 and 13 are connected to the latch rod 1.
5 and 16, the pull frame 7 does not adhere to the front plate 3a, and the joint rod 1
2, 13 and the latch rods 15, 16 can be carried out extremely easily, and the pull frame 7 can be positioned accurately.Moreover, the back cover 8 can be simply pressed against the back plate 3b. Since the latch can be attached with one touch, the latch device can be assembled quickly and reliably.

Further, the back cover 8 is attached to the back plate 3b so as not to be displaced in any of the up, down, left and right directions, while the pull frame 7 and the back cover 3b are connected to the surrounding wall 7a, the guide piece 25, and the engagement piece 24. Due to the engagement between the frame portion 26 and the frame portion 26, the pull frame 7 is engaged with the back cover 8 in a manner that it cannot be displaced in any of the up, down, left, and right directions. It will be installed so that it cannot be moved in any direction, up, down, left or right.

Then, when unlocking the lock, use the key to lock the lock 20.
However, since the area near the lock 20 is adhered to the front plate 3a with double-sided adhesive tape 23, even if a gap is created between the handle frame 7 and the back cover 8, the handle will not be pressed. The frame 7 does not come off from the front plate 3a and rattle, and the pull lever 11
The door 3 is opened by pulling its tip toward you, and even if the area around the pull hole 10 is not adhered to the front plate 3a, the handle frame 7 can be moved forward by operating the pull lever 11. Since it does not separate from the face plate 3a, the handle frame 7 can be maintained in close contact with the front plate 3a at all times.

In this case, if the shoe material 14 is stretched around the pull hole 10 of the pull frame 7 as in the embodiment, the pull frame 7 can be elastically pressed against the front plate 3a by the back cover 8, so that the pull frame 7 can be elastically pressed against the front plate 3a. The frame 7 is attached to the front plate 3a
It has the advantage of being able to reliably maintain the state in which the door is in close contact with the door, and also reliably preventing rattling when the door is opened.

In addition, when the guide piece 25 is provided as the positioning means as in the embodiment, the guide piece 25
may be fitted into the surrounding wall 7a, or the engaging piece 25 and the frame 26 may be attached in the opposite direction, and the frame 16 may be attached to the tip of the lock attachment rod 7b of the pull frame 7 facing backwards. Alternatively, the engagement 24 may be provided protruding from the front surface of the back cover 8. Further, as the mounting means for the back cover 8, other forms may be used, such as using only the other vertically elongated engagement protrusion 27b and the engagement protrusions 29 on both upper and lower sides, or only the engagement protrusions 25 on both upper and lower sides. Needless to say, it's a good thing.

Further, in the above embodiment, the double-sided adhesive tape 23 was attached to the adhesive part 7c in advance, but the double-sided adhesive tape 23 may be attached to the front plate 3b of the door 3 in advance, Moreover, when attaching the pull frame 7, adhesive may be applied to the adhesive portion 7c of the pull frame 7 or the front plate 3a of the door 3 without using double-sided adhesive tape.

[Brief explanation of drawings]

Figures 1 to 10 show an embodiment of the present invention, with Figure 1 being an exploded perspective view of the device, Figure 2 being a front view of the rocker, Figure 3 being a cross-sectional view of Figure 2, and Figure 4 being a cross-sectional view of the rocker. is a sectional view of Fig. 5, and Fig. 5 is a - of Fig. 4.
6 is a cross-sectional view of FIG. 4,
Figure 7 is a cross-sectional view of Figure 4, and Figure 8 is a cross-sectional view of Figure 4.
Figure 9 is a cross-sectional view of Figure 4, Figure 10 is a rear view of Figure 5,
1 and 12 are diagrams showing conventional examples. 1...Rotscar as an example of furniture, 2...Rotscar body, 3...Door, 3a...Front plate, 3b...
...Back plate, 6...Through hole, 7...Handle frame, 7a...
Surrounding wall, 7b...Lock mounting rod, 8...Back cover, 1
0...Holder hole, 11...Holder lever, 12, 13
...Joint rod as an example of a rotating shaft, 15, 16...
... Latch rod, 17 ... Latch claw, 20 ... Tablet, 2
2...Barbar, 23...Double-sided adhesive tape, 24...
Engagement piece, 24... Guide piece, 26... Frame, 27
a, 27b, 29...Engaging protrusion.

Claims (1)

[Scope of utility model registration request] A latch rod to which a latch claw that engages and disengages from the furniture body is attached is provided in a hollow space between a front plate and a back plate of a rotating door of the furniture, and a pull lever is provided in the front face of the door in the hollow part of the door. A handle frame having a hole drilled therein and a wall projecting rearward surrounding the handle hole,
The latch rod is inserted into the hollow portion through a through hole in the back plate of the door, a pull lever is rotatably pivoted within the surrounding wall of the pull frame, and the latch rod is detachably engaged with the pivot shaft of the pull lever. The handle frame is provided with a lock attachment part for fixing a lock that is operated for unlocking and locking from the front surface of the door, at a location appropriately separated from the surrounding wall in the lateral direction, An adhesive part is formed near the front plate of the door, while a back cover covering the through hole of the back plate is formed on the back side of the back plate of the door, and its front surface is attached to the rear surface of the surrounding wall in the handle frame. A hook-shaped engagement protrusion that is inserted into and engages with the back plate is provided at an appropriate location on the periphery of the back cover so as to protrude forward, and the front surface of the back cover A latch device for a door in furniture, characterized in that a positioning means is provided that fits into the surrounding wall of the handle frame and near the lock attachment portion.