JPH04166582A - Opening and closing device of door - Google Patents

Abstract

PURPOSE:To make it possible to set top-railed sliding door bodies easily to the furniture body by providing a compression spring between a fixed base body of lower roller units and a movable frame, and constituting the movable frame so that it is always energized upward. CONSTITUTION:Top-railed sliding door bodies 32 and 33 to open and close the front section of the furniture body 1 are arranged between upper and lower guide rails 8, 8 and 28, 28 respectively fixed to the upper and lower thereof. Upper roller units 37 and 60 having guide rollers 57 and 73 interlocked with upper guide rails 8 so that they are capable of moving are mounted to the upper ends of the top-railed sliding door bodies 32 and 33. Lower roller units 75 and 98 having guide rollers 95 and 103 interlocked with the lower guide rails 28 so that they are capable of moving are mounted to the lower ends of the top-railed sliding door bodies 32 and 33. A fixed base body 99 and a movable frame 100 pivotting the guide rollers 95 and 103 thereon are provided to the lower roller units 75 and 98, and the movable frame 100 is always energized upward by a compression spring placed between both of them.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a door opening/closing device, and mainly relates to a hanging type sliding door that opens and closes the front side of a furniture body.

(Prior art) Conventionally, this type of door opening/closing device has, for example, a guide rail arranged and fixed at each of the upper and lower parts of the furniture body, and the upper guide rail is provided at the upper end of the hanging door body. At the same time, a guide roller provided at the lower end of the hanging door body is engaged with the lower guide rail, and the hanging door body is connected to the upper and lower guide rails via the upper and lower guide rollers. Therefore, a structure is adopted in which it is movable.

(Problem to be Solved by the Invention) In the above configuration, when the hanging door body is set on the furniture body, after the guide roller at the upper end of the hanging door body is engaged with the upper guide rail, the hanging door body is The lower end guide roller is engaged with the lower guide rail, and in this case, the lower end guide roller engages the hanging door body with the upper guide rail as described above via the guide roller. After hanging the door, it can be attached later to the lower end of the hanging door, or it can be attached to the lower end of the hanging door in advance and aligned with the lower guide rail, and the lower guide rail can be attached by rotating the screw. Since it engages with the rail, there is a problem in that it takes a lot of effort to set up the hanging door body, which is unfavorable in terms of work efficiency. .

Therefore, the present invention was made in view of such problems, and it is possible to easily engage the guide roller at the lower end of the hanging door body with the lower guide rail, so that the hanging door body can be attached to the furniture body. On the other hand, it is an object of the present invention to provide a door opening/closing device that can be easily set with less effort and is favorable in terms of work efficiency.

[Structure of the Invention] (Means for Solving the Problems) The door opening/closing device of the present invention includes an upper guide rail arranged and fixed to the upper part of the furniture main body and a lower guide arranged and fixed to the lower part of the furniture main body. a rail, and a hanging door body disposed between the upper and lower guide rails for opening and closing the front part of the furniture body;
A guide roller attached to the upper end of the hanging door body and movably engaged with the upper guide rail, and a guide roller attached to the lower end of the hanging door body and movably engaged with the lower guide rail. a lower roller unit having a guide roller, the lower roller unit being fixed to the lower end of the hanging door body and having a support piece at the lower part; and the lower roller unit being vertically movably engaged with the fixed base body. a movable frame that is supported together and has a locking portion on an upper part that releasably locks to the support piece of the fixed base body, and on which the guide roller is rotatably mounted; the movable frame and the fixed base body; A compression spring is provided between the movable frame and supports the movable frame upward at all times.

(Function) In the door opening/closing device of the present invention, when setting the hanging door body on the furniture body, the guide roller at the upper end of the hanging door body is engaged with the upper guide rail to move the hanging door body into the upper guide. Hang it on the rail.

Next, the movable frame of the lower roller unit is pulled out downward against the compression spring, and the locking portion of the movable frame is locked to the support piece at the bottom of the fixed base body, so that the movable frame is in the pulled-out state. When temporarily locked, the guide roller of the movable frame is positioned directly below the lower guide rail. Then, by operating the movable frame, the locking part is removed from the support piece to release the temporary lock of the movable frame, and the movable frame is automatically pulled up by the return force of the compression spring, and the guide roller of this movable frame is moved downward. is engaged with the guide rail.

(Example) Hereinafter, one example of the present invention will be described based on the accompanying drawings.

In the figure, ■ is a furniture body, and this furniture body 1 is formed with a top plate 2, a bottom plate 3, left and right side plates 4, and a back plate (not shown) with an open front part. Legs 5 are integrally attached to the lower portions of the front and rear portions.

Further, an upper rail body 6 extending in the left-right direction over the entire length of the top plate 2 is integrally fixed to the upper part of the front end of the top plate 2.

The upper rail body 6 has a mounting plate 7 fixed to the top plate 2 over the entire length thereof, and two parallel inner and outer guide rails 8 are integrally provided on the upper part of the mounting plate 7 at the front and rear sides. ,
Between this inner and outer guide rail 8, this guide rail 8
A protrusion 9 having a lower height is integrally provided. Further, a support plate 10 having an inverted shape when viewed from the side is integrally protruded from the upper rear edge of the mounting plate 7, and this support plate 10 has an abutting portion 11.
Vertical plate portion 12 formed at the bottom and this vertical plate portion 1
The horizontal plate portion 13 that continues to the upper end of 2 and this horizontal plate portion 1
It is formed with a supporting piece 14 protruding from the lower part of the vertical plate part 12 in the vicinity of the upper end thereof.

Further, an integral upper stopper 15 is fixed to the protrusion 9 at both left and right ends of the upper rail body 6. This upper stopper integral 15 is formed of synthetic resin, and has clamping pieces 17 integrally protruding upward and downward from the outer end of the mounting board I6 fixed to the protrusion 9 toward the upper and lower parts. A substantially cylindrical locking recess 18 is continuously formed between the outer ends of the clamping pieces 17, and protrusions 19 are formed at the top and bottom of the inner opening of the locking recess 18, facing each other.

Further, a center stopper 20 for temporary locking is fixed to the protrusion 9 at the intermediate portion of the upper rail body 6. This center stopper 20 Gi is a stopper piece 23 that is molded from synthetic resin and has raised pieces 22 on the left and right sides at approximately the middle upper part of the mounting board 21 that is fixed to the protrusion 9.
are integrally provided so as to be elastically deformable in the vertical direction, and this stopper piece 23 includes a guide portion 24 which is gradually inclined upwardly from the left and right rising pieces 22 toward the opposite direction at a gentle inclination angle, and a guide portion 24 on the left and right sides. A substantially semicircular locking recess 25 is formed between the inner ends of the guide portion 24 .

Next, a lower rail body 26 is integrally fixed to the lower front end of the bottom plate 3 and extends in the left-right direction over the entire length thereof. This lower rail body 26 has a mounting plate 27 fixed over the entire length of the bottom plate 3, and at the bottom of this mounting plate 27, inner and outer guide rails 28 are partitioned by a plurality of partition pieces 29 at the front and rear parts. It is integrally formed in parallel lines.

Also, the guide rail 28 on the outside of this lower rail body 26
A lower stopper unit 30 molded into a block shape from synthetic resin is fixed to both the left and right end portions inside.

Reference numeral 31 denotes a sliding door for opening and closing the front opening of the furniture body 1, and the sliding doors 113+ are arranged on the left and right sides on the same plane inside the furniture body 1 when the front opening is closed. It is composed of three hanging door bodies 32 on either side and a hanging door body 33 disposed on the outside between the intermediate parts so as to close the space between the left and right hanging door bodies 32. An upper mounting recess 35 with an open inner side is formed in the inner side of the left and right upper ends of each of the three hanging door bodies 32, 33, and the left and right lower ends of each of the hanging door bodies 32, 33 A lower mounting recess 36 with an open inner side is formed in the inner side thereof.

Next, in the left and right hanging door bodies 32 disposed in the left and right parts, an upper roller unit 37 is fixed to each left and right upper mounting recess 35 .

This upper roller unit 37 is attached to the upper mounting recess 35.
It is comprised of a metal fixed base body 38 to be attached to, a metal movable frame 39, and a bolt 40 for vertically adjusting the movable frame 39 with respect to the fixed base body 38.

The fixed base body 38 has a mounting board 41 extending in the left-right direction, and guide pieces 42 are formed on the left and right sides of the mounting board 41 by cutting them in parallel and perpendicular to each other. In the left and right guide pieces 42, guide elongated holes 43 which are long in the vertical direction are formed in parallel with each other on the left and right sides. Further, support pieces 44 and 45 are formed by cutting and raising vertically parallel to each other at a predetermined interval between the upper and lower portions of the intermediate portion of the mounting board 41, that is, between the left and right guide pieces 42. There is an insertion hole 4 for inserting a bolt that penetrates in the vertical direction.
6 is formed in the lower support piece 45, and the threaded shaft portion 4 of the bolt 40 communicates with the insertion hole 46.
A screw hole 47 is formed into which the 0& is screwed so that it can move forward and backward.

Further, a plurality of mounting holes 48 are formed in the upper and lower portions of both left and right ends of the mounting board 41. Then, with the guide piece 42 and support piece 44 , 45 housed in the upper mounting recess 35 , this mounting board 41 has both left and right ends of the mounting board 41 in contact with the opening edges of the upper mounting recess 35 . The mounting board 41 is integrally fixed to the hanging door body 32 by screwing screws 49 into the hanging door body 32 through the respective attachment holes 48 at both left and right ends.

The movable frame 39 also includes an upper plate 50 extending in the horizontal direction and having an outer plate 51 and an inner plate 52 connected in parallel to each other at the lower sides of both sides of the upper plate 50 in the width direction.
It is formed by An insertion hole 53 is formed in the middle part of the upper plate 50 and communicates with the insertion hole 46 and the screw hole 47, through which the bolt 40 is inserted. 54
are integrally protruded.

Furthermore, guide protrusions 55 are integrally formed at both left and right ends of the outer plate 51 and are vertically movably inserted into the left and right guide grooves 43 of the fixed base body 38. Further, a support shaft 56 is integrally and horizontally protruded from the intermediate inner side of the inner plate 52, and is movably engaged with the guide rail 8 on the outside of the upper rail body 6. This guide rail 8
A guide roller 57 suspended from the shaft is rotatably mounted on a shaft.
A locking pin 58 that is removably locked in the locking recess 18 of the upper stopper unit 15 is horizontally protruded from one end of the inner plate 52 . The movable frame 39 has its outer plate 51 inserted between the guide pieces 42 of the fixed base body 38, and the left and right guide protrusions 55 of the outer plate 51 can be vertically moved into the left and right guide grooves 43. The bolt 40 is inserted into the insertion hole 46 of the upper support piece 44 of the fixed base body 38 from the insertion hole 53 of the upper plate 50 of the movable frame 39, and the threaded shaft portion 4 of this bolt 40
0! is screwed into the screw hole 47 of the lower support piece 45 so that it can move forward and backward. As a result, the movable frame 39 having the guide rollers 57 is connected to the fixed base body 38 via the bolts 40 in a height-adjustable manner, and the upper roller unit 37
is configured. Also, a cover 59 is superimposed on the inner side of the mounting board 41 on the fixed base body 38 of the upper roller unit 37, and the cover 59 is mounted by screws 49 on the right and left and top and bottom screwed into the hanging door body 32 to attach the mounting board 41 to the hanging door body 32. It is fastened together with the board 41 to the hanging door body 32. As a result, the inner side surface of the mounting board 41 is covered and the appearance is improved.

Next, in the hanging door body 33 disposed in the intermediate part,
The upper roller unit 6G is fixed to the left and right upper mounting recesses 35.

This upper roller unit 60 has the upper mounting recess 35
The fixed base body 61 made of metal is attached to the base body 61, a movable frame 62 made of metal, and a bolt 63 for vertically adjusting the movable frame 62 with respect to the fixed base body 61.

Since the fixed base body 61 is formed in the same structure as the fixed base body 38 of the upper roller unit 37 fixed to the left and right parts, the codes used for this fixed base body 38 are written in each part. The explanation will be omitted.

Further, this fixed base body 61 is integrally fixed to the hanging door body 33 by the same means as the fixed base body 38.

Further, the movable frame 62 is formed of a top plate 64 formed in a substantially rectangular shape, and an outer plate 65 and an inner plate 66 that are arranged in parallel and opposite to each other at the lower portions of both the front and rear sides of the top plate 64. A housing recess 67 is formed in the outer intermediate portion of the upper surface plate 64, and a horizontal locking plate 68 of the housing recess 67 has a horizontal locking plate 68 in the intermediate portion that communicates with the insertion hole 46 and the screw hole 47, and is connected to the bolt 63. An insertion hole 69 is formed through which the top plate 64 is inserted, and locking edges 70 that are locked to the stopper pin 54 are formed on both left and right edges of the top plate 64. Furthermore, guide protrusions 71 are integrally formed at both left and right ends of the outer plate 65 and are vertically movably inserted into the left and right guide grooves 43 of the fixed base body 61. Further, a support shaft 72 is integrally and horizontally protruded from the intermediate outer side of the inner plate 66, and is movably engaged with the guide rail 8 inside the upper rail body 6. A guide roller 73 suspended by the guide rail 8 is rotatably mounted on an axis, and a guide portion 24 of the stopper piece 23 of the center stopper 20 is provided on the outer side of one end of the inner plate 66.
and a locking pin 74 that is removably locked in the locking recess 25.
is protruding horizontally. Further, this inner plate 66 comes into contact with the abutting portion 11 of the support plate 10 for positioning when it is set on the guide rail 8. The movable frame 62 has its outer plate 65 inserted between the guide pieces 42 of the fixed base body 61, and the left and right guide protrusions 7I of this outer plate 65 can be moved vertically into the left and right guide grooves 43. the fixed base body 61 through the insertion hole 69 of the housing recess 67 in the top plate 64 of the movable frame 62.
By inserting the bolt 63 into the insertion hole 46 of the upper support piece 44 and screwing the threaded shaft part 63a of this bolt 63 into the screw hole 47 of the lower support piece 45 so as to be able to move forward and backward, the fixed base can be fixed. A movable frame 62 having a guide roller 73 is connected to the body 61 via bolts 63 so as to be height adjustable, thereby forming an upper roller unit 6o. Also, a cover 59 is superimposed on the inner side of the mounting board 41 on the fixed base body 61 of the upper roller unit 60, and the cover 59 is attached to the mounting board 41 by screws 49 on the left and right and top and bottom screwed into the hanging door body 33. By fastening together with the board 41 to the hanging door body 33, the inner side surface of the mounting board 41 is covered and the appearance is improved.

Next, lower roller units 75 are fixed to the left and right lower mounting recesses 36 of the left and right hanging door bodies 32 disposed in the left and right parts.

This lower roller unit 75 is attached to the lower mounting recess 36.
A fixed base body 76 made of metal, a movable frame 77 made of metal, and a pair of compression springs 7 that support the movable frame 77 so as to be movable up and down relative to the fixed base body 76.
8.

The fixed base body 76 has a mounting board 79 formed to extend in the left-right direction, and guide pieces 80 are formed on the left and right sides of the mounting board 79 by cutting them in parallel and perpendicular to each other. In the left and right guide pieces 80, long guide grooves 81 which are long in the vertical direction are formed in parallel with each other on the left and right sides. Furthermore, support pieces 82 and 83 are cut and raised vertically in parallel at a predetermined interval between the upper and lower portions of the intermediate portion of the mounting board 79, that is, between the left and right guide pieces 80.
Locking pieces 84 for locking the lower ends of the compression springs 78 are formed on the left and right sides of the mounting board 79 to protrude upward, and a plurality of mounting holes 85 are formed at the top and bottom of both left and right ends of the mounting board 79. has been done. Then, this mounting board 79 attaches its guide piece 80 and support pieces 82, 83 to the lower mounting recess 36.
With the left and right ends of the mounting board 79 in contact with the opening edges of the lower mounting recess 36 , screws 86 are screwed into the hanging door body 32 through the mounting holes 85 at both left and right ends to attach the mounting board 41 . is integrally fixed to the hanging door body 32.

Furthermore, the movable frame 77 has a width disposed between the left and right guide pieces 80 of the fixed base body 76, and sequentially extends from the upper part to the lower part by a vertical plate part 87, an inclined plate part 88, and a horizontal plate part 89.
It is formed with An insertion recess 90 is formed in the middle part of the vertical plate part 87 in the left-right direction, and the upper part of the insertion recess 90 is open, into which the upper and lower support pieces 82 and 83 are inserted vertically. A locking portion 91 that engages and disengages from the left and right sides of the support piece 83 at the lower part of the fixed base body 76 is cut out in the vertical wall portion. Furthermore, guide protrusions 92 are integrally formed on the left and right outer sides of the vertical plate portion 87 and are vertically movably inserted into the left and right guide long grooves 81 of the fixed base body 76. Furthermore, locking pieces 93 that lock the upper ends of the left and right compression springs 78 are formed to protrude downward from the left and right upper portions of the vertical plate portion 87.

Further, a support shaft 94 is provided in a protruding manner at an intermediate portion of the horizontal plate portion 89;
A guide roller 95 that movably engages with the guide rail 28 on the outside of the lower rail body 26 is rotatably mounted on this support shaft 94 . Further, a plate-shaped stopper 96 is integrally and horizontally protruded from one end of the horizontal plate portion 89. The movable frame 77 is disposed between the left and right guide pieces 80 of the fixed base body 76, and allows the left and right guide protrusions 92 of the vertical plate portion 87 to move vertically into the guide grooves 81 of the left and right guide pieces 80. , and the upper and lower ends of the pair of compression springs 78 are locked between the locking pieces 84 and 93 that are vertically opposed to each other on the left and right sides. As a result, a movable frame 77 having a guide roller 95 is connected to the fixed base body 76 via a pair of compression springs 78 so as to be vertically movable, and a lower roller unit 75 is configured. Also, a mounting board 79 on the fixed base body 76 of this lower roller unit 75
An integral cover 97 is superimposed on the inner side of the housing, and this integral cover 97 is fastened together with the mounting board 79 to the hanging door body 32 by means of left and right upper and lower screws 86 screwed into the hanging door body 32. As a result, the inner side surface of the mounting board 79 is covered and the appearance is improved.

Next, in the hanging door body 33 disposed in the intermediate part,
A lower roller unit 98 is fixed to the left and right lower mounting recesses 36 .

This lower roller unit 98 is attached to the lower mounting recess 36.
It is comprised of a metal fixed base body 99 that is attached to the metal movable frame 100, and a pair of compression springs 101 that supports the movable frame 1011 so as to be movable up and down with respect to the fixed base body 99.

The fixed base body 99 is the fixed base body 7 of the lower roller unit 75 fixed to the left and right parts of the hanging door body 32.
Since it is formed with the same structure as 6, the reference numerals used for this fixed base body 76 will be written in each part and the explanation thereof will be omitted. Further, this fixed base body 99 is integrally fixed to the hanging door body 33 by the same means as the fixed base body 76.

The movable frame +00 is the movable frame 7 of the lower roller unit 75 fixed to the left and right sides of the hanging door body 32.
Since it has almost the same structure as No. 7, the same reference numerals will be used for the parts having the same structure, and the explanation thereof will be omitted. The inclined plate part 88 and the horizontal plate part 89 are formed wide so as to largely protrude inwardly, and the lower roller is located in the middle of the horizontal plate part 89 near the inner end. A support shaft 102 that is engaged with a stopper 96 on the movable frame 77 of the unit 75 is vertically arranged,
This support shaft 102 has a guide roller 1θ3 movably engaged with the guide rail 28 inside the lower rail body 26.
is rotatably mounted on an axis. The movable frame 100 is arranged between the left and right guide pieces 80 of the fixed base body 99, and the left and right guide pieces 92 of the vertical plate portion 87.
are inserted into the guide grooves 81 of the left and right guide pieces 80 so as to be vertically movable, and the upper and lower ends of the pair of compression springs 101 are locked between the locking pieces 84 and 93 that are vertically opposed to each other in the left and right parts. As a result, a movable frame 100 having a guide roller 103 is connected to the fixed base body 99 via a pair of compression springs 101 so as to be vertically movable, and a lower roller unit 98 is configured. In addition, a cover 97 is superimposed on the inner side of the mounting board 79 in the lower roller unit 98, and the cover 97 is attached to the hanging door together with the mounting board 79 by screws 86 on the left and right and top and bottom that screw the mounting board 79 into the hanging door body 33. collinear with body 33.

As a result, the inner side surface of the mounting board 79 is covered and the appearance is improved. Furthermore, the left and right lower roller units 9
A cover unit 104 is attached between the inclined plate part 88 and the horizontal plate part 89 of the movable frame 100 at 8.

Next, a stopper unit 105 for preventing wheel slippage is attached to the horizontal plate portion 13 of the support plate 10 of the upper rail body 6. This stopper integrated 105 is
It has an insertion groove 106 into which the horizontal plate part 13 is inserted, and an engagement surface 107 that comes into contact with the lower wall surface of the ceiling is formed in the upper part of the insertion groove 106, and a stopper of the upper roller unit 37.60 is formed in the lower part of the engagement surface 107. A locking surface 108 that locks the pin 54 and the top plate 64 is formed. Therefore, the distance between the locking surface 108, the stopper pin 54, and the top plate 64 is formed to be smaller than the height of the two guide rails 8 of the upper rail body 6. When each hanging door body 32.33 is lifted upward, each stopper pin 54 and top plate 64 are locked to the locking surface 108 of the stopper body 105, and each guide roller 57.73 is It is designed to prevent the wheels from falling off. Further, a decorative body 109 is attached to the front surface of the stopper unit 105.

Next, when attaching each of the hanging door bodies 32 and 33 to the furniture body 1, first, attach each of the hanging door bodies 32 on the left and right sides to the outer guide rail 8 of the upper rail body 6 of the furniture body 1. The guide rollers 57 in the upper roller units 37 at the left and right upper ends are engaged. Thereby, the hanging door bodies 32 disposed on the left and right sides are suspended from the outer guide rails 8 via the respective guide rollers 57 so as to be movable in the left and right directions.

When the left and right hanging doors 32 are suspended, the hanging doors 32 may tilt in the left-right direction due to distortion of the top plate 2 of the furniture body 1 or installation errors of the guide rollers 57.
If a situation arises in which smooth opening/closing movement in the left/right direction occurs, the upper roller unit 37 at the location that requires adjustment
By adjusting the rotation of the bolt 40, the fixed base body 38 is fixed relative to the movable frame 39 of the upper roller unit 37 that engages the guide roller 57 with the outer guide rail 8.
is vertically adjusted, and the hanging door body 32 is adjusted and set in a state in which it can be opened and closed vertically and smoothly. That is, when the bolt 40 is rotated in a state in which the guide roller 57 of the movable frame 39 is engaged with the outer guide rail 8, the lower part of the fixed base body 38 is supported by the threaded shaft portion 40r at the lower end of the bolt 40. Piece 45 is this screw hole 4
7, and the left and right guide pieces 42 of this fixed base body 38 are guided by the left and right guide protrusions 55 of the movable frame 39 through their long guide grooves 43 and are moved up and down, so that the bolt 40, the fixed base body 38 is moved up and down with respect to the movable frame 39, and the hanging door body 32 to which the fixed base body 38 is fixed is changed from a tilted state to a vertical position. In this case, the upper and lower parts of the bolt 4θ are inserted into and supported by the insertion hole 53 of the movable frame 39 and the insertion hole 46 of the upper support piece 44 of the fixed base body 38, and the fixed base body 38 is supported by the left and right guides. The piece 42 connects to the movable frame 39 via the guide groove 43.
Since the fixed base body 38 is inserted into and supported by the left and right guide protrusions 55 so as to be vertically movable, the fixed base body 38 can be smoothly adjusted vertically in a stable state without swinging greatly in the left and right direction with respect to the movable frame 39. .

Next, in a state in which the left and right hanging door bodies 32 are suspended from the guide rail 8 on the outside of the upper rail body 6 so as to be movable in the left and right directions, the lower roller units 75 at the lower left and right ends of the respective left and right hanging door bodies 32 are suspended.
When the movable frame 77 is pulled downward, the movable frame 77 is pulled out from the fixed base body 76 against the left and right compression springs 78. The locking portion 9 on one side of the insertion recess 90 of the movable frame 77
1 faces the support piece 83 at the lower part of the fixed base body 76, and when this movable frame 77 is laterally moved toward the support piece 83 side in the lateral direction, the locking part 91 is inserted and locked on this support piece 83. , this movable frame 77 is the fixed base body 7
The guide rollers 95 of the movable frame 77 are temporarily locked to the fixed base body 76 while being pulled out downward from the movable frame 76 .

It is located below and protrudes from the lower end of the partition piece 29 on the outside of the guide rail 28 on the outside of the lower rail body 26 , and is located below the guide rail 28 on the outside of the lower rail body 26 . Then, when the movable frame 77 is laterally moved outward on the side opposite to the support piece 83 at the lower part of the fixed base body 76, the locking part 91 of the insertion recess 90 is disengaged from this support piece 83, and the movable frame 77 is temporarily moved. The lock will be released. Further, the temporary lock of the movable frame 77 is released, and the movable frame 77 is pushed up by the restoring force of the left and right compression springs 78, and the guide roller 95 of the movable frame 77 is moved inside the guide rail 28 on the outside of the lower rail body 26. automatically engaged. When the guide roller 95 of the lower roller unit 75 is engaged with the guide rail 28 on the outside of the lower rail body 26, the movable frame 77 has its insertion recess 90 connected to the upper and lower support pieces 82, 83 of the fixed base body 76. Then, the left and right guide pieces 9
2 are moved up and down respectively along the long guide grooves 81 in the left and right guide pieces 80 of the fixed base body 76, so this movable frame 77 is smoothly moved up and down with respect to the fixed base body 76. In addition, when temporarily locking the movable frame 77 and releasing this temporary lock, by moving the movable frame 77 laterally, the left and right guide protrusions 92 move in and out of the guide long grooves 81 of the respective left and right guide pieces 80. Therefore, the temporary locking of the movable frame 77 and the release of this temporary locking are easily performed.

In this way, each guide roller 57 of the upper roller unit 37 and the lower roller unit 75 is placed on the left and right sides between the outer guide rail 8 of the upper rail body 6 and the outer guide rail 28 of the lower rail body 26. The left and right hanging door bodies 32 are engaged and suspended via 95 so as to be movable in the left and right directions on the same plane.

Next, the guide rollers 73 of the upper roller units 60 on the left and right upper portions of the hanging door body 33 disposed in the intermediate part are attached to the inner guide rails 8 of the upper rail body 6 of the furniture body 1.
engage. As a result, the hanging door body 3 disposed in the middle part
3 is suspended from the inner guide rail 8 via the left and right guide rollers 73 so as to be movable in the left and right direction.

When the hanging door body 33 in the middle part is suspended, the hanging door body 33 may tilt in the left-right direction due to distortion of the top plate 2 of the furniture body 1 or installation error of the guide roller 73.
If a situation arises in which smooth opening and closing movement in the left and right directions cannot be expected, the guide roller 73 can be engaged with the inner guide rail 8 by adjusting the rotation of one or both bolts 63 of the upper roller unit 60. The fixed base body 61 is vertically adjusted relative to the movable frame 62 of the assembled upper roller unit 60, and the hanging door body 33 is vertically adjusted to allow smooth opening and closing movement.

That is, when the guide roller 73 of the movable frame 62 is engaged with the inner guide rail 8, the bolt 63
When the bolt 63 is rotated, the threaded shaft 63 at the lower end of the bolt 63
1, the fixed base body 61 is connected to the left and right hanging door bodies 32.
are moved up and down in the same way as the upper roller units 37, and therefore, by adjusting the rotation of the bolt 63,
The fixed base body 61 is moved up and down with respect to the movable frame 62, and the hanging door body 33 to which the fixed base body 61 is fixed is changed from an inclined state to a vertical state. In this case, the upper and lower parts of the bolt 63 are attached to the movable frame 62.
The insertion hole 69 and the upper support piece 44 of the fixed base body 61
The fixed base body 61 is inserted and supported in the insertion hole 46 of the
Since the left and right guide pieces 42 are inserted into and supported by the left and right guide protrusions 71 of the movable frame 62 via the guide long grooves 43 so as to be vertically movable, the fixed base body 61 can be moved left and right with respect to the movable frame 62. The vertical movement can be adjusted smoothly in a stable state without large swings.

Next, when the intermediate hanging door body 33 is suspended from the guide rail 8 inside the upper rail body 6 so as to be movable in the left and right directions, the movable frame 10G in the lower roller unit 98 at the left and right lower ends is pulled downward. , this movable frame 100 is pulled out downward from the fixed base body 99 against the left and right compression springs 101. When the movable frame 100 is laterally moved toward the horizontal support piece 83 in the same way as the lower roller unit 75 of the left and right hanging door bodies 32, the locking part 91 of the insertion recess 90
is inserted and locked, and the movable frame 100 is pulled out downward from the fixed base body 99.
The guide roller 103 of this movable frame +00 is located below the guide rail 28 inside the lower rail body 26, similar to the guide roller 95 in the lower roller unit 75 of the left and right hanging door bodies 32. be done. Then, when the movable frame 100 is laterally moved outward on the side opposite to the support piece 83 at the lower part of the fixed base body 99, the locking part 91 of the insertion recess 90 is disengaged from the support piece 83, and the movable frame 100 is moved outward. The temporary lock is released, the movable frame 100 is pushed up by the restoring force of the left and right compression springs 101, and the guide rollers 103 of the movable frame 10G move against the guide rail 2 inside the lower rail body 26.
8.

When the guide roller 103 of the lower roller unit 98 is engaged with the guide rail 28 inside the lower rail body 26, the movable frame 100 is moved up and down in the same manner as the movable frame 77 of the left and right hanging door bodies 32. Therefore, this movable frame 100 can be smoothly moved up and down with respect to the fixed base body 99. Also, when temporarily locking the movable frame 100 and releasing this temporary lock, the movable frame 100
operates in the same manner as the movable frame 77, so the temporary locking of the movable frame +00 and the release of this temporary lock are easily performed.

In this way, each guide roller 73 of the upper roller unit 60 and the lower roller unit 98 is placed on the left and right between the guide rail 8 inside the upper rail body 6 and the guide rail 28 inside the lower rail body 26. .103, the hanging door body 33 in the middle part is engaged and suspended so as to be movable laterally.

A large inclined plate portion 88 in the movable frame 100 of the lower roller unit 98 of the hanging door body 33 in the intermediate portion
And the horizontal plate part 89 is an intermediate part so that it can be moved in the left-right direction below a position where it does not abut against the inclined plate part 88 and the horizontal plate part 89 in the movable frame 77 of the lower roller unit 75 of the left and right hanging door bodies 32. The hanging door body 33 is suspended.

Next, the left and right hanging door bodies 32 and the middle hanging door body 33,
Along the upper and lower guide rails 8.28 are respective guide rollers 57.73.95. The front opening of the furniture main body 1 is opened and closed by moving in the left and right direction via the door 103. In this case, the left and right hanging doors 32
is moved to both ends of the outer upper and lower guide rails 8°28, the locking pins 58 of the movable frame 39 in the upper roller unit 37 on the upper side of the movement direction of the hanging door body 32
is inserted and locked into the locking recess 18 between the upper and lower clamping pieces 17 of the upper stopper unit 15. That is, the locking pin 5
8 is inserted between the upper and lower clamping pieces 17, the upper and lower clamping pieces 17 are each elastically deformed in the vertical direction by the locking pin 58, and the spaces between the protrusions 19 are widened, and the protrusions 19 The locking pin 58 passes between the locking pins 58 and is inserted into the locking recess 18, and the upper and lower clamping pieces 1
7 automatically elastically returns and the respective projections 19 are spaced apart, and the locking pin 58 is locked in the locking recess 18 by the upper and lower projections 19. Also, this left and right hanging door body 3
At the same time, the guide roller 95 of the lower roller unit 75 at the lower part of the hanging door body 32 on the moving direction side is locked by the locking pin 58 of the upper roller unit 37 and the upper stopper unit 15. It comes into contact with the lower stopper unit 30 and its movement is stopped. therefore,
The left and right inner hanging door bodies 32 do not tilt in the left-right direction.
held vertically.

In addition, the left and right hanging door bodies 32 are connected to the outer upper and lower guide rails 8.
, 28, the locking pin 58 of the upper roller unit 37 engages with the upper stopper 15.
is released from the locking recess 18 against the upper and lower clamping pieces 17, and the lock is released, so that the left and right hanging door bodies 32 are smoothly moved toward the intermediate portion.

Next, when the intermediate hanging door body 33 is moved to one end of the inner upper and lower guide rails 8, 28 in the left-right direction, the upper roller unit 60 at the upper part of the hanging door body 33 on the moving direction side
The locking edge 70 of the movable frame 62 contacts the stopper pin 54 of the movable frame 39 of the upper roller unit 37 of the hanging door body 32 on the inside in the direction in which the hanging door body 33 moves, and its movement is stopped. be done.

Moreover, at the same time that the upper part of the hanging door body 33 in the intermediate portion on the moving direction side is locked by the stopper pin 54 of the upper roller unit 37.60 and the locking edge 70, this hanging door body 33
The support shaft 102 having the guide roller 103 in the lower roller unit 98 at the lower part in the moving direction of the hanging door body 3
3 comes into contact with a stopper 96 on the movable frame 77 of the lower roller unit 37 of the hanging door body 32 on the inner side in the direction in which the hanging door body 32 moves, and its movement is stopped. Therefore, the hanging door body 33 on the outside of the intermediate portion is held vertically without tilting in the left-right direction.

Moreover, when the hanging door body 33 in the middle part is moved toward the middle part of the upper and lower guide rails 8.28 on the inside, the movable frame 62 of the upper roller unit 60 of the hanging door body 33 in the middle part
The locking pin 74 is locked in the locking recess 25 of the stopper piece 23 in the center stopper 20 at the middle portion of the upper rail body 6. That is, when the locking pin 74 comes into contact with the guide portion 24 of the stopper piece 23 and gradually moves toward the locking recess 25, the stopper piece 23 is pushed downward and elastically deformed by the locking pin 74, and the stopper piece 23 is elastically deformed. When the stop pin 74 is moved to the position of the lock recess 25, the stopper piece 23 is elastically restored and the lock pin 74 and the lock recess 25 are engaged and locked.

Therefore, the hanging door body 33 in the intermediate portion is prevented from moving too much toward the other end in the left-right direction by the locking pin 74 of the upper roller unit 60 and the center stopper 20. As a result, when the left and right inner hanging door bodies 32 are moved to the left and right ends, the space between the left and right hanging door bodies 32 is filled by the outer hanging door body 33 in the intermediate part. The left and right ends of the door 33 are overlapped with the respective inner ends of the left and right hanging door bodies 32 and closed.

Furthermore, when the intermediate hanging door body 33 is moved to one side in the left-right direction, the stopper piece 23 of the center stopper 20 is pushed in the moving direction by the locking pin 74 of the upper roller unit 60, causing elasticity. The deformed locking pin 74 comes out of the locking recess 25 of the stopper piece 23, and the lock is released, so that the hanging door body 33 in the middle can be easily moved to one side.

Next, when each hanging door body 32.33 moves up and down and lifts up during opening and closing movement of each hanging door body 32.33,
Each stopper pin 54 and upper surface plate 64 of the movable frame 39.62 in each upper roller unit 37.60 are connected to the locking surface 10 of the lower surface portion of the stopper unit 105.
8 and each upper guide roller 5? ,
73 are prevented from coming off the respective upper guide rails 8.

〔Effect of the invention〕

According to the present invention, the movable frame of the lower roller unit is pulled out against the fixed base body of the lower roller unit fixed to the lower end of the hanging door body against the compression spring, and the movable frame is engaged with the fixed base body of the lower roller unit. By locking the stop portion to the support piece of the fixed base body, the guide roller of this movable frame can be easily temporarily locked in a state where it is pulled out to a position below the guide rail at the bottom of the furniture body. When setting the hanging door body on the furniture body, the guide roller at the upper end of the hanging door body is engaged with the guide rail at the upper part of the furniture body, and the guide roller at the lower end of the hanging door body is engaged with the guide roller at the upper end of the furniture body. It can be easily installed directly under the lower guide rail. In addition, in this state, the locking part of the movable frame is removed from the support piece of the fixed base body to release the temporary lock, and the movable frame is automatically pulled upward by the return force of the compression spring, and the guide roller is moved downward. can be easily engaged with the guide rail. Therefore, the hanging door body can be easily set on the furniture body with less effort, and a door opening/closing device that is favorable in terms of work efficiency can be provided.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, and FIG. 1 is a vertical sectional view with a part of the door opening/closing device omitted, FIG. The figure is an exploded perspective view of the upper roller unit on the upper part of the inner hanging door, FIG. 4 is an exploded perspective view of the upper and lower roller unit, and FIG. Fig. 6 is an exploded perspective view of the upper and lower roller units, Fig. 7 is a partially cutaway front view of the inner and outer hanging door bodies partially overlapped, Fig. 8 is a plan view of the above, and Fig. 9 is The same bottom view and FIG. 10 are front views of the door opening/closing device. 1... Furniture body, 8, 28... Guide rail, 32, 3
3.Hanging door body, 75.98..Lower roller unit, 7
6, 99... Fixed base body, 77, 100... Movable frame, 78.101... Compression spring, 83... Support piece, 91... Locking part, 57.73.95.103...
Guide roller, 58.74...locking pin. ) Ei'1

Claims (1)

[Claims] (1) An upper guide rail arranged and fixed on the upper part of the furniture main body, a lower guide rail arranged and fixed on the lower part of the furniture main body, and a front part of the furniture main body arranged between the upper and lower guide rails. A hanging door body that opens and closes; a guide roller attached to the upper end of the hanging door body and movably engaged with the upper guide rail; and a guide roller attached to the lower end of the hanging door body and movably engaged with the upper guide rail. a lower roller unit having a guide roller movably engaged with a guide rail; a movable frame that is engaged and supported by the base body so as to be movable up and down, has a locking part on the upper part that releasably locks the support piece of the fixed base body, and has the guide roller rotatably supported on the shaft; A door opening/closing device characterized by comprising a compression spring provided between a movable frame and the fixed base body and always urging and supporting the movable frame upward.