JP4094465B2 - Door latch device in furniture - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door latch device in furniture.
[0002]
[Prior art]
In a conventional door latch device in furniture, the front part of the lever constituting one side of the handle is pressed by holding both sides of the handle protruding from the front side of the door with one hand, and the rear part of the lever However, there is a type in which the latch rod is rotated and the engagement between the latch claw and the engagement portion of the furniture body is released. (For example, see Patent Document 1)
[0003]
[Patent Document 1]
JP-A-9-125787 (2nd page, FIG. 3)
[0004]
[Problems to be solved by the invention]
In the case of furniture such as bookcases, a door fitted with glass in the frame may be provided so that the inside can be seen. To meet these requirements, a thin frame is used to make the inside visible. In addition, it is necessary to make the area of the glass wide, and it is possible to improve the aesthetics of the door by giving an impression that the door is entirely made of glass.
[0005]
However, in the handle structure of Patent Document 1, the lever of the latch device is pivotally attached to a pivot provided in a through hole penetrating the back surface side of the door, and the lever moves laterally with respect to the door. Therefore, it is necessary to make the width of the latch device wide in the left-right direction. To attach a conventional latch device to a door made of glass, make the frame wide and make the through hole large. Since it is necessary to open, if such a large hole is made in the edge of the glass to which the handle is attached, the glass may be easily broken.
[0006]
The present invention has been made paying attention to such problems, and by forming the latch device to be narrow, the door can be configured using a thin frame, and glass is provided on the surface side of the frame. It is an object of the present invention to provide a door latch device for furniture that can be easily provided on a door.
[0007]
[Means for Solving the Problems]
In order to solve the above-described object, the door latch device for furniture according to the present invention has latch latches having latch claws that can be engaged with the engaging portions of the furniture body at both ends, and are pivotally attached to the furniture body so as to be freely opened and closed. It is a door latch device in furniture that is pivotally supported on the back surface of the door in a rotationally biased state in the engagement direction, and the door is provided with an operation unit linked to turn the latch rod. And the outer peripheral portion of the back surface side of the glass portion constituting the door is supported by at least one saddle member, and the latch rod is rotated on the back surface side of the saddle member so as to follow the longitudinal direction of the saddle member. It is attached so that it can move, and the handle member along the longitudinal direction of the saddle material via the glass part is attached to the surface side of the saddle material so that it projects forward, and the handle member and the glass part And the brazing material penetrates the back surface of the brazing material. Hole is provided, the through-hole is characterized in that coordinated the operation rod so as to provide a rotation to the latch rod is movably inserted in the front-rear direction.
According to this feature, the latch rod is attached so as to be along the longitudinal direction of the casing, so that the latch casing is concealed by the casing, and the aesthetic appearance of the door composed of the glass portion is impaired. Since the latch rod can be rotated by the longitudinal movement of the operation rod, the width of the latch device can be narrowed, and the door is constructed using a thin rod material. Can do. In addition, the through hole for inserting the operation rod into the glass portion can be made small, and the processing of the glass portion is facilitated.
[0008]
In the door latch device in the furniture of the present invention, the through hole provided in the glass part is preferably a substantially circular hole.
If it does in this way, while processing of a glass part becomes easy, since the circumference of a penetration hole is not chipped, it can prevent that a glass part breaks from a penetration hole.
[0009]
The door latch device in the furniture of the present invention has a slide member that slides on the back side of the saddle by key operation, and a lock device that enables or disables the rotation of the latch trough by sliding of the slide member, It is preferable that it is provided on the back surface of the saddle member, and the sliding direction of the slide member is along the longitudinal direction of the saddle member.
In this way, the slide member can be concealed by the saddle material by providing the slide direction of the slide member along the longitudinal direction on the back side of the saddle material.
[0010]
In the door latch device in the furniture of the present invention, a receiving material that is interlocked with the latching rod is provided between the latching rod and the operating rod, and a tip portion of the operating rod that comes into contact with the receiving material, It is preferable to have a substantially circular shape with a predetermined curvature.
In this way, the back-and-forth movement of the operating rod can be smoothly changed to the turning movement of the latch rod.
[0011]
In the door latch device in the furniture according to the present invention, it is preferable that the receiving member is movable and adjustable with respect to the latch rod.
In this way, when assembling the latch device, the linkage between the latch rod and the operating rod can be adjusted by adjusting the receiving material between the latch rod and the operating rod. The timing for opening and closing the latch device can be adjusted.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, FIG. 1 is a front view of a cabinet to which the door latch device of the present invention is applied, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 2 of the latch device, FIG. 4 is an enlarged view of the engaging portion at the upper end of the opening of the glass door, and FIG. FIG. 5B is a diagram illustrating an engagement state of the latch device in a BB cross section of FIG. 2, and FIG. 5B is a diagram illustrating an open state of the latch device.
[0013]
Reference numeral 1 in FIG. 1 denotes a cabinet as an embodiment of the present invention, and single-open glass doors 2 and 2 ′ are attached to the left and right sides of the opening on the front surface of the main body of the cabinet 1. Since both glass doors 2 and 2 ′ have the same configuration, description will be given with respect to one glass door 2.
[0014]
The glass door 2 has an outer end pivotally attached to a hinge 3 so as to be pivotable forward. The glass door 2 includes a rectangular plate-like glass plate 6 as a glass portion, and a back side of the glass plate 6. It is composed of four upper, lower, left, and right ribs 7, 7 ′, 7 ″ and 7 ′ ″ made of a material such as an aluminum alloy attached to the outer periphery.
[0015]
Since the glass plate 6 is provided on the glass door 2, the stored items inside the cabinet 1 can be seen with the glass door 2 closed. In addition, a handle member 4 is attached to the surface side of the collar member 7 located on the opposite side of the hinge 3 via a glass plate 6, and a lock device 5 is provided on the upper part of the handle member 4. .
[0016]
The door latch device of the present invention will be described in detail with reference to FIGS. 2 to 3. FIG. 2 is a view of the glass door 2 as viewed from the back side, and the back side of the saddle member 7 located on the opposite side of the hinge 3. The latch rods 8a and 8b are attached along the vertical direction of the rod material 7.
[0017]
The latch rods 8a and 8b are rotatably attached to the rod material 7 by support members 9a and 9b fixed to the back surface of the rod material 7, and latches are provided at both upper and lower ends of the latch rods 8a and 8b. The claws 10a and 10b are fixed. In this way, the latch rods 8a and 8b extend to the back surface side of the rod material 7 and are concealed by the rod material 7, so that the latch rod 8a is formed without impairing the aesthetic appearance of the glass door 2 composed of the glass plate 6. 8b can be provided.
[0018]
3 is a side view of the AA cross section of FIG. 2 as viewed from the side. As shown in FIG. 3, the inside of the glass member 7 of the glass door 2 is hollow, and the back surface side of the glass material 7. The cover body 11 is attached to. An attachment plate 12 is provided inside the cover body 11, and this attachment plate 12 is attached to the saddle member 7 via screws 13a and 13b. Between the upper and lower support pieces 12a, 12b projecting rearward from the mounting plate 12, a substantially cylindrical rotating cylinder 14 is pivotally supported. The flanges 8a and 8b are fitted.
[0019]
As shown in FIG. 2, a pressing piece 14 a extends from the rotating cylinder 14, and a fixing piece 12 c projects from the mounting plate 12. A spring 15 is provided between the pressing piece 14a and the fixed piece 12c. One end of the spring 15 is locked to the pressing piece 14a, and the other end is locked to the fixed piece 12c. Further, the mounting plate 12 is formed with an insertion hole 12d so that a locking piece 14b protruding from a later-described rotating cylinder 14 can be inserted.
[0020]
A substantially cylindrical locking device 5 is provided above the pulling member 4 shown in FIG. 3, and this locking device 5 is a sliding member that slides in the vertical direction by inserting a key 23 and rotating it. 17. The slide member 17 is lowered to the position of the insertion hole 12d of the mounting plate 12.
[0021]
Since the slide member 17 is provided along the vertical direction of the saddle member 7, the slide member 17 can be concealed by the saddle member, so that the slide member 17 cannot be seen from the surface side of the glass door 2, The aesthetics of the glass door 2 are improved.
[0022]
As shown in FIG. 3, the handle member 4 is fixed to the surface side of the glass plate 6 supported by the brazing material 7 of the glass door 2 with two screws 13 b and 13 c, and the screws 13 b and 13 c are The through holes 7c, 7d, 7e, and 7f formed on the front surface side and the back surface side of the material 7 and the through holes 6a and 6b formed in the glass plate 6 are inserted.
[0023]
The pulling member 4 is attached so as to protrude forward along the longitudinal direction of the saddle member 7 through the glass plate 6, so that the glass plate 6 is sandwiched between the saddle member 7 and the pulling member 4. Therefore, when the glass member 2 is opened and closed by holding the handle member 4, the glass plate 6 is not damaged, so that the handle member 4 can be firmly attached to the glass door 2.
[0024]
An operation rod 20 is provided in the through hole 4a formed in the upper portion of the pulling member 4 shown in FIG. 3, and the operation rod 20 includes the through hole 6c formed in the glass plate 6 and the surface of the saddle member 7. The through holes 7 a and 7 b formed on the side and the back side are inserted in the front-rear direction and penetrated to the back side of the saddle member 7.
[0025]
The operating rod 20 is always urged outward by a compression spring 21 inside the through hole 4 a of the pulling member 4, and the button 20 a formed at the end of the operating rod 20 is forward of the pulling member 4. It is protruding. Therefore, when opening the glass door 2, the button 20a of the operation rod 20 is easy to push.
[0026]
A receiving member 22 is attached to the pressing piece 14 a of the rotating cylinder 14, and a distal end portion 20 b of the operation rod 20 is in contact with the receiving member 22. The receiving member 22 has a substantially screw shape, and the linkage between the rotating cylinder 14 and the operating rod 20 can be adjusted by changing the screwing condition of the receiving member 22. When the latch device is assembled, by adjusting the movement of the receiving member 22, the stroke before and after the operation rod 20 and the timing for opening and closing the latch device can be adjusted.
[0027]
Of the above-described upper and lower latch claws 10a and 10b, the upper latch claw 10a will be described in detail with reference to FIG. 4. The latch claw 10a is placed in the window 18 provided at the upper end on the front side of the opening of the cabinet 1. It can be inserted and is provided so as to be able to be engaged and disengaged with respect to an engagement piece 19 as an engagement portion fixed in the window portion 18.
[0028]
The lower latch claw 10b has the same configuration, and when the glass door 2 is closed, the latch claw 10a, 10b is engaged with the engagement piece 19 in the window 18, so that the glass door 2 is not easily opened. Therefore, even if the cabinet 1 is shaken due to an earthquake or the like, the glass door 2 does not open, so that the stored items do not fall.
[0029]
FIGS. 5A and 5B are views of the BB cross section of FIG. 2 as viewed from above. As shown in FIG. 5A, the outer peripheral edge of the glass plate 6 It is held by the engagement strip 24. The operating rod 20 is inserted into the glass plate 6 and the three through holes 6c, 7a, 7b opened on the front side and the back side of the saddle member 7.
[0030]
Next, in a normal state, the operation rod 20 is configured such that the button 20 a of the operation rod 20 protrudes from the pulling member 4 due to the elasticity of the compression spring 21 as shown in FIG. Here, the glass door 2 is in a closed state, and the latch claws 10 a and 10 b described above are engaged with the engagement pieces 19 in the window portion 18.
[0031]
When the glass door 2 is opened, first, the handle member 4 is grasped with one hand and the button 20a of the operation rod 20 is pressed with a finger. As shown in FIG. 5B, when the button 20a is pressed in the direction of the arrow, the distal end portion 20b of the operating rod 20 presses the receiving member 22 screwed into the pressing piece 14a, and the rotating cylinder 14 is moved. It is rotated.
[0032]
Since the latch rods 8a and 8b are rotated with the rotation of the rotating cylinder 14, the latch claws 10a and 10b are rotated in the direction of the arrow, and the latch claws 10a and 10b are connected to the window 18 described above. Since it deviates from the inner engagement piece 19, the glass door 2 can be opened. When the pressing of the button 20 a is stopped, the latch claws 10 a and 10 b are automatically returned to the original state by the bias of the spring 15, and the operation rod 20 is also returned to the original position by the bias of the compression spring 21.
[0033]
The distal end portion 20b of the operation rod 20 has a hemispherical shape with a predetermined curvature. When the operation rod 20 presses the receiving member 22 of the pressing piece 14a of the rotating cylinder 14, the front and rear of the operation rod 20 The movement in the direction can be smoothly changed to the movement of rotation of the rotating cylinder 14. When the glass door 2 is closed, the latch claws 10a and 10b are automatically engaged with the engagement piece 19 simply by closing the glass door 2 without touching the button 20a.
[0034]
Further, as shown in FIG. 5A, a space 25 is formed between the saddle member 7 and the mounting plate 12, and the slide member of the locking device 5 described above is formed in the space 25. 17 can be inserted from above. A locking piece 14 b that is locked to the slide member 17 of the locking device 5 is projected from the rotating cylinder 14.
[0035]
When the glass door 2 is locked, the slide member 17 is slid downward and inserted into the space portion 25 by inserting and rotating the key 23 into the unlocking lock device 5. Therefore, the locking piece 14b of the rotating cylinder 14 comes into contact with the slide member 17, and even if the button 20a of the operating rod 20 is pressed, the rotating cylinder 14 does not rotate, so the glass door 2 is opened. It becomes impossible.
[0036]
Thus, in the door latch device of the present invention, the latch rods 8a and 8b are rotated by the movement of the operation rod 20 in the front-rear direction, so that the width of the latch device can be reduced. Then, the glass door 2 can be configured using the thin brazing material 7.
[0037]
Further, since the operation rod 20 is inserted into the glass plate 6 of the glass door, it is only necessary to form a substantially circular through-hole 6c having a small diameter in the glass plate 6, so that the glass for constituting the latch device can be used. The processing of the plate 6 becomes easy and the breakage of the glass plate 6 from the through hole 6c can be prevented because the through hole 6c has a substantially circular shape.
[0038]
Furthermore, if it is the structure of the latch apparatus of this invention, the through-hole 6c which penetrates the operation rod 20 provided in the glass plate 6, and the through-holes 6a and 6b which penetrate the screws 13b and 13c for attachment of the handle member 4; Since all of the through holes 6d through which the locking device 5 is inserted can be formed in a substantially circular shape, the glass plate 6 can be easily processed and a large hole is formed in the outer periphery of the glass plate 6 where the glass plate 6 is likely to be damaged. The latch device and the pulling member 4 can be provided without any problem, and the glass door 2 can withstand long-term use.
[0039]
Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.
[0040]
【The invention's effect】
The present invention has the following effects.
[0041]
(A) According to the invention described in claim 1, the latch rod is attached so as to be along the longitudinal direction of the saddle material, so that the latch rod is concealed by the saddle material, and is configured by a glass portion. The latch rod can be provided without impairing the aesthetic appearance of the door, and the latch rod is rotated by the movement of the operation rod in the front-rear direction, so that the width of the latch device can be made narrow, and the thin rod material The door can be configured using. In addition, the through hole for inserting the operation rod into the glass portion can be made small, and the processing of the glass portion is facilitated.
[0042]
(B) According to the invention described in claim 2, the processing of the glass portion is facilitated and the periphery of the through hole is not chipped, so that it is possible to prevent the glass portion from being broken from the through hole.
[0043]
(C) According to the invention described in claim 3, the slide member can be concealed by the saddle material because the slide direction of the slide member is provided on the back side of the saddle material along the longitudinal direction. .
[0044]
(D) According to the invention described in claim 4, the movement of the operating rod in the front-rear direction can be smoothly changed to the rotation movement of the latch rod.
[0045]
(E) According to the invention described in claim 5, when the latch device is assembled, the linkage between the latch rod and the operation rod can be adjusted by adjusting the receiving material between the latch rod and the operation rod. The stroke before and after the operating rod and the timing for opening and closing the latch device can be adjusted.
[Brief description of the drawings]
FIG. 1 is a front view of a cabinet to which a door latch device of the present invention is applied.
FIG. 2 is an enlarged view of a main part of the back surface of the glass door.
FIG. 3 is a cross-sectional view of the latch device taken along the line AA in FIG.
FIG. 4 is an enlarged view of an engaging portion at the upper end of the opening of the glass door.
5A is a diagram showing an engaged state of the latch device in the BB cross section of FIG. 2, and FIG. 5B is a diagram showing an opened state of the latch device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cabinet 2, 2 'Glass door 3 Hinge 4 Pulling member 4a Through-hole 5 Locking device 6 Glass plate 6a, 6b Through-hole 6c, 6d Through-hole 7, 7' Fence 7 ", 7 '" Fence 7a, 7b Through hole 7c, 7d Through hole 7e, 7f Through hole 8a, 8b Latch rod 9a, 9b Support member 10a, 10b Latch claw 11 Cover body 12 Mounting plate 12a, 12b Support piece 12c Fixed piece 12d Insertion hole 13a, 13b Screw 13c Screw 14 Rotating cylinder 14a Pressing piece 14b Locking piece 15 Spring 17 Slide member 18 Window part 19 Engagement piece 20 Operation rod 20a Button 20b Tip part 21 Compression spring 22 Receiving material 23 Key 24 Engaging strip 25 Space part

Claims (5)

Latch rods having latch claws that can be engaged with the engaging portion of the furniture body at both ends are pivotally supported in a rotationally biased state in the engagement direction on the back surface of the door pivotably attached to the furniture body. The door is a latch device for a door in a furniture provided with an operation unit linked to give rotation to the latch rod, and has at least one outer peripheral portion on the back surface side of the glass portion constituting the door. It is supported by a brazing material, and on the back side of the brazing material, the latch rod is rotatably attached along the longitudinal direction of the brazing material, and the glass portion is provided on the front surface side of the brazing material. The pulling member along the longitudinal direction of the saddle member is attached so as to protrude forward, and the handle member, the glass portion, and the saddle member are provided with a through-hole penetrating the back surface of the saddle member. In the through hole, the latch rod is linked to rotate. Door latch device in furniture, characterized in that the operating rod is movably inserted in the front-rear direction. The door latch device for furniture according to claim 1, wherein the through hole provided in the glass portion is a substantially circular hole. A locking device that has a slide member that slides on the back surface side of the saddle material by a key operation, and that enables or disables the rotation of the latch rod by sliding of the slide member is provided on the back surface of the saddle material; The door latch device for furniture according to claim 1 or 2, wherein the sliding direction of the sliding member is along the longitudinal direction of the saddle member. Between the latch rod and the operation rod, a receiving material that interlocks with the latch rod is provided, and the tip of the operation rod that contacts the receiving material has a substantially circular shape with a predetermined curvature. The door latch device for furniture according to any one of claims 1 to 3. The door latch device for furniture according to claim 4, wherein the receiving member is movable and adjustable with respect to the latch rod.

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