JP2000240345A - Fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly perform the movement by inserting a fitting in upward and downward guide grooves respectively, performing guiding so as not to slip off the fitting from a track, and providing upward and downward guide parts rotatable to the fitting body. SOLUTION: A rotary shaft 4d is rotatably attached to a bearing 4c provided on the lower face of a sliding screen 1, a downward guide part body 4e and a sash roller 5 are provided on the lower end, and further two rings are penetrated in the lower face of the downward guide part body 4e to hang a guide pin 4f. The rotary shaft 4d is rotatably attached to a bearing 6c on the upper face, an upward guide part body 6e is provided on the upper end, and further a guide pin 6f is hung on the lower face of the upward guide part body 6e. The downward and upward guide parts 4, 6 of the sliding screen 1 are inserted in downward and upward guide grooves 2a, 3a provided on a fitting installation face and a horizontal timber 3. When it may be slipped off from the track, rings 4g, 6g collide with the side wall of the downward and upward guide grooves 2a, 3a, and the sliding screen 1 does not move in the direction turning away the curved track. Resistance is slight by the rotation of the rings 4g, 6g, and the movement can performed by light force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting such as a shoji, a sliding door, a door, a window, a partition, a shutter, a sash, etc. in which a track of a fitting body can be bent.

[0002]

2. Description of the Related Art Conventionally, when a large number of people use a room by connecting two rooms, or when a room is opened by a tea ceremony or a flower arrangement, a shoji or a sliding door is removed from a sill and a Kamoi. I used it in another room or in a corner of a corridor. However, sills and lintels will be distorted if they are used for a long time, so it will be necessary to remove the sliding doors and sliding doors. It required human labor to remove the sliding doors and sliding doors. Also, in these cases, if you do not pay attention to the threshold after removing the sliding doors and sliding doors, you will fall or trip over with your feet because there is a wide groove to guide the sliding doors and sliding doors Sometimes
Elderly people, children, and women in kimonos required special attention. Also, due to such a problem, it has been difficult for the conventional fittings to easily remove the fittings in the room and enjoy the open feeling.

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to solve these problems of the prior art and to easily connect or open the rooms by making it possible to bend the track of the fitting body. It is an object of the present invention to provide a fitting which can be used for a long time without being caught by a foot on a fitting installation surface, falling or tripping over, and the fitting itself can be moved with a light force even when used for a long time.

[0004]

Means for Solving the Problems The constitution of the present invention which has solved the above problems is as follows: 1) A lower guide groove for smoothly bending the track of the fitting main body is provided on the fitting installation surface, and is inserted into the lower guide groove and inserted into the lower fitting groove. The lower part of the fitting body is provided at the lower part of the fitting body, and a door wheel is provided at the lower part of the fitting body, and the upper part is smoothly bent on the ceiling surface above the fitting body, so that the lower guide part can be guided so that it does not deviate from the track and rotate with respect to the fitting body. A guide groove is provided, and an upper guide portion inserted into the upper guide groove to guide the fitting body so that it does not deviate from the track and to be rotatable with respect to the fitting body is provided. Fittings that allow the lower guide to rotate and move 2) Provide a lower guide groove on the fitting installation surface where the trajectory of the fitting body bends smoothly, and insert it into the lower guide groove. A lower guide part that guides the fitting body so that it does not deviate from the track and can rotate with respect to the fitting body is provided at the lower part of two fitting bodies separated by a predetermined distance, and a door wheel is attached to the lower guide part, and a door wheel is mounted above the fitting body. An upper guide groove which smoothly bends is provided in the ceiling surface of the upper part, and an upper guide part which is inserted into the upper guide groove and guides the fitting body so as not to deviate from the track and is rotatable with respect to the fitting body is provided above the lower guide part.
A fitting provided at the upper part of the fitting body so that the upper guide part and the lower guide part can rotate and move so that the fitting body does not deviate from the bent track 3) Attaching to the lower surface of the fitting body as a lower guide part A plate is attached, and a lower guide portion main body is provided below the mounting plate so as to be rotatable around a vertical axis portion, and guide pins are vertically provided at two positions axially symmetric with respect to the vertical axis on the lower surface of the lower guide portion main body. And the guide pin is provided with a ring rotatably attached thereto, and the outer periphery of the ring and the side wall in the lower guide groove are in contact with each other to rotate the ring. 4) The lower surface of the main body of the fitting The lower guide portion main body is rotatably provided around the vertical shaft below the mounting plate, and guide pins are suspended from the lower surface of the lower guide portion main body at two positions axially symmetric with respect to the vertical axis. Set up The fitting as described in 2) above, wherein a ring is rotatably attached to each of the id pins, and the door wheel is attached to the lower guide portion body. 5) As an upper guide portion, a mounting plate is mounted on the upper surface of the fitting body, and an upper guide is provided above the mounting plate. The main body is provided rotatably around the vertical shaft, and guide pins are vertically suspended at two locations axially symmetrical with respect to the vertical axis on the upper surface of the upper guide main body, and rings are rotatably attached to the guide pins respectively. 1) to 4), wherein the outer periphery of the ring and the side wall in the groove of the upper guide groove are in contact with each other to rotate the ring.
6) The upper guide groove and the lower guide groove arranged so as to connect at least two sides on four sides surrounding the room.
To 5) fittings described in any of the above.

[0005]

According to the present invention, the door body is moved by the door roller on the door mounting surface with a light force. Further, a lower guide groove is provided on a fitting installation surface as a track of the fitting main body, an upper guide groove is provided on a ceiling surface, a lower guide portion is provided at a lower portion of the fitting main body, inserted into the lower guide groove, and an upper A guide portion is provided and inserted into the upper guide groove. Therefore, the fitting body moves without deviating from the track. When the upper guide groove and the lower guide groove come to a bent position, the upper guide portion and the lower guide portion are provided so as to be rotatable with respect to the fitting body, so that the upper guide portion and the lower guide portion follow the guided grooves, respectively. The part of the fitting installation surface provided with the guide part and the lower guide part is positioned on the track. In this way, the direction of the fitting body is moved while being bent little by little, and the bent track is moved. The upper guide portion and the lower guide portion are provided at two places separated by a predetermined distance, respectively, so that the fitting body is oriented tangentially to the bent portion of the track,
Move the fixture body in a stable state. As a lower guide portion, a mounting plate is attached to the lower surface of the fitting body, a lower guide portion main body is provided below the mounting plate, two guide pins are provided on the lower surface of the lower guide portion main body, and a ring is mounted on the guide pin. And, as an upper guide, a mounting plate is mounted on the upper surface of the fitting body, an upper guide body is provided above the mounting plate, two guide pins are provided on the upper surface of the upper guide body, and a ring is mounted on the guide pin. The fitting body moves while the ring rotates while being in contact with the side wall of the upper guide groove or the lower guide groove. Can not be made. When the door roller is attached to the lower guide part body, the door roller can be rotated around the vertical axis by attaching the door roller to the lower guide part body, and when turning the traveling direction of the fitting body, it is at the same position as the guide pin. The door wheel is turned in accordance with the traveling direction of the fitting body to move the fitting body smoothly. When the upper guide groove and the lower guide groove are arranged so as to connect at least two sides of the four sides surrounding the room, the fitting body can be completely removed from at least one side.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The fittings include a shoji, a sliding door, a door, a window, a partition, a shutter, a sash, and the like. Any number of door cars may be provided at the lower part of the fitting body, and it is desirable to determine the door car in consideration of the load of the fitting body. When the door roller is provided on the lower guide portion, it may be provided on only one side of the lower guide portion, or may be provided on both sides so as to sandwich the lower guide portion. Door cars include those made of metal, wood, and resin, and are preferably determined in consideration of strength and durability.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described with reference to the drawings. Example 1 (see FIGS. 1 to 9) In Example 1 shown in FIGS. 1 to 9, a lower guide groove, in which a track of a fitting body is bent smoothly, is provided with a fitting installation surface, and the fitting body is inserted into the lower guide groove and the track is moved. A lower guide part which guides so as not to come off and which can rotate with respect to the fitting body is provided at the lower part of two fitting bodies separated by a predetermined distance, a door wheel is attached to the lower guide part, and the ceiling surface above the fitting body is smooth. The upper guide groove is provided at the upper part of the two upper parts of the fitting body above the lower guide part so that the upper guide part can be inserted into the upper guide groove to guide the fitting body so as not to deviate from the track and rotate with respect to the fitting body. The lower guide part body is provided below the mounting plate so as to be rotatable around the vertical axis, and the guide pin is provided on the lower surface of the lower guide part body. Are mounted vertically at two locations symmetrical with respect to the vertical axis, a ring is attached to the guide pin, a mounting plate is mounted on the upper surface of the fitting body as an upper guide portion, and the upper guide portion main body is mounted above the mounting plate with the vertical shaft portion. The upper and lower guide parts are provided rotatably around the upper guide part body. The guide pins are suspended vertically at two points symmetrical with respect to the vertical axis. It is the example of the fitting which attached to the main part of a part, and arranged the upper guide groove and the lower guide so that the four sides surrounding the room may be connected. FIG. 1 is a longitudinal sectional view of a fitting according to the first embodiment. FIG. 2 is a plan view showing a state where the fittings of the first embodiment are installed. FIG. 3 is a side view of the fitting of the first embodiment. FIG. 4 is an explanatory diagram of the fitting according to the first embodiment. FIG. 5 is an explanatory diagram of the fitting according to the first embodiment. FIG. 6 is a partially enlarged sectional view of the fitting of the first embodiment. FIG. 7 is a partially enlarged rear view of the fitting of the first embodiment. FIG. 8 is a partially enlarged sectional view of the fitting of the first embodiment. FIG. 9 is a partially enlarged plan view of the fitting of the first embodiment. In the figure, 1 is a shoji, 1a is a concave portion on the lower surface of the shoji, 1b
Is a recess on the upper surface of a shoji screen, 2 is a threshold, 2a is a lower guide groove, 3 is a dam, 3a is an upper guide groove, 4 is a lower guide portion, 4a is a mounting plate, 4b is a mounting screw, 4c is a bearing, 4d
Is a rotating shaft, 4e is a lower guide portion main body, 4f is a guide pin, 4g is a ring, 5 is a door roller, 5a is a car portion, 5b is a shaft portion, 6 is an upper guide portion, 6a is a mounting plate, 6b is a mounting screw, 6c is a bearing, 6d is a rotating shaft, 6e is an upper guide body, 6f is a guide pin, 6g is a ring, 10 is a tatami mat, 11
Is a wall. In Example 1, as shown in FIGS. 1 to 9, a shoji is used as a fitting body. As shown in FIG. 2, the room to which the fittings are attached is a tatami room, with a wall 11 on only one of the four sides and a shoji on the remaining three sides. First, three parallel lower guide grooves 2a are provided on three of the four sides so as to be in the trajectory of the shoji 1 in this room, and on one side of the wall 11, three parallel lower guide grooves 2a are provided on the back side of the wall. Provide. Further, the corners are connected by an arc so that each lower guide groove 2a makes one round of the room. In this way, three parallel lower guide grooves 2a are provided so as to make one round of the room.
Next, as shown in FIGS. 1 and 3, a gate 3 is provided on the ceiling surface, and an upper guide groove 3a is provided so as to go around the room similarly to the lower guide groove 2a. 1, 3 on the underside of the shoji
As shown in FIGS. 6 and 7, two concave portions 1a are provided. Four locations of the mounting plate 4a are fixed to the recessed portions 1a with mounting screws 4b. Next, a bearing 4c is provided so as to be fixed at the center of the mounting plate 4a, and the rotary shaft 4d is inserted into the bearing 4c and attached. The rotating shaft 4d is rotatable by engagement with the bearing 4c. Next, the lower guide body 4e is attached to the lower end of the rotating shaft 4d. Next, as shown in FIG. 1, the shaft portion 5b is attached so as to penetrate the lower guide portion main body 4e, and the car portion 5a is provided at both ends of the shaft portion 5b.
a so as to penetrate it with a gap. Thereby, each car part 5a becomes rotatable with respect to the shaft part 5b, and the car part 5a and the shaft part 5b form the door roller 5. Next, as shown in FIG. 6, guide pins 4 f are vertically installed so as to extend downward from two locations axially symmetric with respect to the rotation axis on the lower surface of the lower guide portion main body 4 e, and are attached to one guide pin 4 f. The two rings 4g are provided so as to penetrate with a clearance. The tip of the guide pin 4f has a disk shape larger than the inner diameter of the ring 4g so that the ring 4g does not come off. Next, as shown in FIGS. 1, 3, 8, and 9, two concave portions 1b are provided on the upper surface of the shoji. Two portions of the mounting plate 6a are fixed to the recessed portions 1b with mounting screws 6b. Next, a bearing 6c is provided so as to be fixed at the center of the mounting plate 6a, and the rotating shaft 6d is inserted into the bearing 6c and attached. The rotating shaft 6d is rotatable by engagement with the bearing 6c. Next, the upper guide body 6 is attached to the upper end of the rotating shaft 6d.
e. Next, guide pins 6f are vertically installed so as to extend downward from two locations axially symmetric with respect to the rotation axis on the lower surface of the upper guide body 6e, and two rings 6g are provided on one guide pin 6f. Is provided so as to penetrate it. The tip of the guide pin 6f has a disk shape larger than the inner diameter of the ring 6g so that the ring 6g does not come off. 2 and 3, the guide pin 6f and the ring 6g of the upper guide portion 6 are inserted into the upper guide groove 3a of the gate 3 and the guide pin 4f and the ring 4g of the lower guide portion 4 are inserted into the sill 2 as shown in FIGS. The sliding door 1 is inserted into the lower guide groove 2a, and the sliding door 1 is attached to the gate 3 and the threshold 2. The shoji screen 1 is supported by door rollers 5 provided at two places as shown in FIG. When a force is applied to move the shoji 1, the car part 5a of the door roller 5 rolls, and the shoji 1 moves with a light force. If the shoji 1 tries to deviate from the trajectory while moving, the ring 4g of the lower guide 4 hits the side wall of the lower guide groove 2a, and the lower part of the shoji 1 cannot move further in the direction off the trajectory. Since the ring 4g is rotatable with respect to the guide pin 4f, the lower guide portion 4 is formed on the side wall of the lower guide groove 2a.
Even when the ring 4g is in contact, the rotation of the ring 4g causes little resistance, and the shoji 1 can move smoothly. In this way, the rotation of the ring prevents the wear from increasing even when used for a long time so that the ring can move smoothly even when used for a long time, and can move quietly without generating sliding noise. If the shoji 1 tries to move off the track while moving, the upper guide groove 3a
The ring 6g of the upper guide portion 6 hits the side wall of the sliding door 1 and the upper part of the shoji 1 can no longer move in the direction off the track.
Since the ring 6g is rotatable with respect to the guide pin 6f, even when the ring 6g of the upper guide portion 6 is in contact with the side wall of the upper guide groove 3a, the shoji 1 can move smoothly with little resistance due to the rotation of the ring 6g. Further, in the room of the first embodiment, the shoji screens 1 can be collected on the back of the wall 11 to open three of the four sides. Since the lower guide groove 2a provided in the sill 2 and the upper guide groove 3a provided in the lintel 3 are provided so as to bend in an arc at right angles, a force is required to move the shoji 1 further at the corner of the room. In addition, as shown in FIG. 5, the lower guide portion 4 and the upper guide portion 6 move along the arc-shaped portions of the lower guide groove 2a and the upper guide groove 3a. At this time, since the lower guide portion main body 4e is rotatable, the lower guide portion 4 rotates so that the two guide pins 4f and the ring 4g follow the arcuate portion, and the door wheel 5 also has an arcuate shape. Rotate so that it faces the tangent direction of the part. Also, the upper guide portion 6
Also, since the upper guide portion main body 6e is rotatable, the guide pin 6f and the ring 6g rotate along the arc-shaped portion. Therefore, the shoji 1 smoothly bends while being guided. The car portion 5a of the door roller 5 is the shaft portion 5.
Since each of them is free with respect to b, even when the fitting body turns, the car parts 5a can independently rotate forward and backward independently without slipping, and the fitting body bends more smoothly. In addition, as shown in FIG. 4, two or three sashes can be moved so as to overlap each other. In this way, by moving the sliding doors attached to three of the four sides surrounding the room to the back side of the wall, the three sides of the room can be easily opened without removing the sliding doors as in the related art. It can also be easily restored to its original state. Further, in the sliding door of the first embodiment, the threshold is only the narrow guide groove 2a having a small width, and since there is no wide groove as in the related art, an elderly person, a child, a person wearing a kimono, etc., can catch a foot. It is very safe without falling or tripping over. Also, as shown in FIGS. 1, 6, and 8, a predetermined clearance is provided between the upper guide groove 3a of the gate and the tip of the guide pin 6f of the upper guide portion 6, and the lower guide groove 2a of the threshold 2 is provided. A predetermined clearance is also provided between the lower guide portion 4 and the tip of the guide pin 4f. Therefore, even if it is used for a long time and is distorted so that the distance between the gate 3 and the threshold 2 becomes shorter, the movement of the shoji 1 will not be affected at all if it is within the two gaps. Therefore, even if used for a long time, the shoji can move smoothly. Alternatively, the door roller and the lower guide portion may be separated from each other, and only one lower guide portion may be attached to each sliding door. Example 2 (see FIG. 10) Example 2 shown in FIG. 10 is an example of a fitting in which a door roller is provided only on one side of a lower guide portion. It is a partially expanded longitudinal sectional view of the fitting of Example 2 shown in FIG. In the figure, 12 is a lower guide portion, 12a is a mounting plate, 12b is a bearing,
12c is a lower guide portion main body, 12d is a guide pin, 12
e is a ring, 13 is a door roller, 13a is a car part, 13b is a shaft part, and 13c is a shaft part. In the second embodiment, as shown in FIG. 10, a convex portion is provided on the lower surface of the mounting plate 12a of the lower guide portion 12, a concave portion is provided on the upper surface of the lower guide portion main body 12c, and the bearing 12b is passed through the convex portion of the mounting plate 12a. And the concave portion on the upper surface of the lower guide portion main body 12c is loosely fitted into the convex portion of the mounting plate 12a. As a result, the lower guide body 12c becomes rotatable with respect to the mounting plate 12a. Further, in the second embodiment, the car portion 13a of the door roller 13 is disposed on one side of the lower guide portion main body, the shaft portion 13b is penetrated from the door wheel side, and the shaft portion 13c is screwed to the shaft portion 13b from the opposite side. . As described above, the door roller may be provided on one side, and the shaft may have any structure as long as the car part of the door roller rotates smoothly. In addition, any structure may be used to make the lower guide portion body rotatable. Other symbols, configurations, operations, and usages are the same as those in the first embodiment. Example 3 (see FIG. 11) Example 3 shown in FIG. 11 is an example of a fitting using a shutter. FIG. 11 is an explanatory view showing a state where the fittings of the third embodiment are attached. In the figure, 15 is a shutter, 16 is a lower guide groove,
Reference numeral 17 denotes an edge, and reference numeral 18 denotes a shutter housing. In the third embodiment, as shown in FIG. 11, a shutter 15 is used as a fitting. A shutter housing 18 may be provided at a part of the edge 17 and, if necessary, the shutters 15 may be sequentially sent out and used. Thus, it can be used for various fittings. Also, the trajectory of the fitting can be freely set. In addition, code, configuration, action,
The usage is the same as in the first embodiment.

[0008]

According to the present invention, it is possible to connect the rooms easily by opening the room by bending the track of the fitting main body, or to open the room so that the foot can be hooked on the fitting installation surface. The fitting body can be moved with a small force even when used for a long time without falling down or tripping over. When the upper guide portion and the lower guide portion are provided at two places separated from each other by a predetermined distance, the fitting can be moved more stably and smoothly. As a lower guide portion, a mounting plate is attached to the lower surface of the fitting body, a lower guide portion main body is provided below the mounting plate, two guide pins are provided on the lower surface of the lower guide portion main body, and a ring is mounted on the guide pin. A mounting plate was attached to the upper surface of the fitting body as an upper guide, an upper guide was provided above the mounting plate, two guide pins were provided on the upper surface of the upper guide, and a ring was attached to the guide pin. The object is a fitting that can be used for a long time and move quietly. The one in which the door wheel is attached to the lower guide portion main body can be a fitting that can move more smoothly when the fitting main body is turned. In the case where the upper guide groove and the lower guide groove are arranged so as to be connected to at least two sides of the four sides surrounding the room, the room can be more easily opened or the rooms can be connected.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a fitting according to a first embodiment.

FIG. 2 is a plan view showing a state where the fittings of the first embodiment are installed.

FIG. 3 is a side view of the fitting according to the first embodiment.

FIG. 4 is an explanatory diagram of a fitting according to the first embodiment.

FIG. 5 is an explanatory diagram of a fitting according to the first embodiment.

FIG. 6 is a partially enlarged cross-sectional view of the fitting according to the first embodiment.

FIG. 7 is a partially enlarged rear view of the fitting according to the first embodiment.

FIG. 8 is a partially enlarged cross-sectional view of the fitting according to the first embodiment.

FIG. 9 is a partially enlarged plan view of the fitting according to the first embodiment.

FIG. 10 is a partially enlarged longitudinal sectional view of a fitting according to a second embodiment.

FIG. 11 is an explanatory view showing a state where a fitting according to a third embodiment is attached.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 shoji 1a recess on the lower surface of shoji 1b recess on the upper surface of shoji 2 Sill 2a Lower guide groove 3 Kamoi 3a Upper guide groove 4 Lower guide 4a Mounting plate 4b Mounting screw 4c Bearing 4d Rotary shaft 4e Lower guide main body 4f Guide pin 4g Ring 5 Door roller 5a Car part 5b Shaft part 6 Upper guide part 6a Mounting plate 6b Mounting screw 6c Bearing 6d Rotating shaft 6e Upper guide part body 6f Guide pin 6g Ring 7 Missing number 8 Missing number 9 Missing number 10 Tatami 11 Wall 12 Lower guide part 12a Plate 12b Bearing 12c Lower guide part main body 12d Guide pin 12e Ring 13 Door roller 13a Car part 13b Shaft part 13c Shaft part 14 Missing number 15 Shutter 16 Lower guide groove 17 Edge side 18 Shutter storage part

Claims (6)

[Claims] 1. A lower guide groove in which a track of a fitting body is bent smoothly is provided on a fitting installation surface. The lower guide groove is inserted into the lower guide groove to guide the fitting body so that it does not deviate from the track, and can rotate with respect to the fitting body. The lower guide part is provided at the lower part of the fitting body, the door roller is provided at the lower part of the fitting body, the upper guide groove that smoothly bends is provided on the ceiling surface above the fitting body, and the fitting body is disengaged from the track by being inserted into the upper guide groove. A fitting provided with an upper guide that can be guided and rotated with respect to the fitting main body so that the upper guide and the lower guide can rotate and move so that the fitting main body does not deviate from a bent track. 2. A lower guide groove, on which the track of the fitting body is bent smoothly, is provided on the fitting installation surface. The lower guide groove is inserted into the lower guide groove to guide the fitting body so as not to deviate from the track and to be rotatable with respect to the fitting body. A lower guide portion is provided at the lower part of two fitting bodies separated by a predetermined distance, a door wheel is attached to the lower guide portion, an upper guide groove which smoothly bends is provided on a ceiling surface above the fitting body, and is inserted into the upper guide groove. An upper guide portion that guides the fitting body so that it does not deviate from the track and is rotatable with respect to the fitting body is provided at the upper part of the two fitting bodies above the lower guide portion so that the fitting body does not deviate from the bent track. A fitting in which the upper guide portion and the lower guide portion can rotate and move. 3. A lower guide portion, wherein a mounting plate is attached to the lower surface of the fitting body, a lower guide portion main body is provided below the mounting plate so as to be rotatable around a vertical axis, and a guide is provided on the lower surface of the lower guide portion main body. Pins are vertically suspended at two locations that are axisymmetric with respect to the vertical axis. Rings are attached to the guide pins so that they can rotate freely. The outer circumference of the ring and the side wall in the lower guide groove are in contact with each other, and the ring rotates. Claim 1.
Fittings described. 4. A mounting plate is attached to the lower surface of the fitting body, a lower guide portion main body is provided below the mounting plate so as to be rotatable around a vertical axis, and a guide pin is provided on the lower surface of the lower guide portion with a vertical axis. The fitting according to claim 2, wherein the fitting is vertically installed at two axially symmetric positions, rings are rotatably mounted on the guide pins, and the door roller is mounted on the lower guide portion main body. 5. An upper guide portion, wherein a mounting plate is mounted on an upper surface of a fitting body, and an upper guide portion main body is provided above the mounting plate so as to be rotatable around a vertical axis portion, and a guide is provided on an upper surface of the upper guide portion main body. Pins are vertically suspended at two points that are axisymmetric with respect to the vertical axis, and a ring is attached to each of the guide pins so that the ring is rotatable. The outer circumference of the ring and the side wall in the upper guide groove contact each other, and the ring rotates. Claim 1.
The fitting according to any one of (1) to (4). 6. The fitting according to claim 1, wherein the upper guide groove and the lower guide groove are arranged so as to connect at least two sides on four sides surrounding the room.