JP2001152729A - Door guide device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and easily adjust a longitudinal directional position of a door (a thickness directional position of the door) in a guide device for guiding a lower end part or an upper end part of the door such as a sliding door and a folding door along a guide rail. SOLUTION: In this door guide device for fitting a roller 7 with a collar supported on the outside end of a vertical support shaft 4 projecting from a door 1 to a guide rail 8, the vertical support shaft 4 is supported in a casing 3 installed in the door 1 so as to be autorotatable around the axis of the vertical support shaft 4, an eccentric shaft part 15 is projected from an eccentric position on the outside end of the vertical support shaft 4, the roller 7 with a collar is supported by this eccentric shaft part 15, a rotary operation part 20 is formed in a part projecting from at least the door 1 of the vertical support shaft 4, and a click mechanism 19 for frictionally locking autorotation of the vertical support shaft 4 with every proper angle is interposed between the casing 3 and the vertical support shaft 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device for guiding a lower end or an upper end of a door such as a sliding door or a folding door along a guide rail.

[0002]

2. Description of the Related Art A vertical support shaft protruding from a door is provided at a lower end portion of an upper suspension type sliding door, an upper end portion of a lower support type sliding door, or upper and lower ends of a free end of a folding door. A guide device is provided which comprises a guided member attached to the outer end and a roller or the like fitted to the guide rail.

In this type of door guide device, when the door is closed, the position of the door in the front-rear direction (thickness direction of the door) is determined by the position of the vertical support shaft in the thickness direction of the door (normally, the door). Thickness center position) or the position of the guide rail. Therefore, when it is necessary to adjust the position of the door in the front-rear direction (door thickness direction) when the door is closed, the position of the vertical support shaft in the door thickness direction is changed, or a guide rail is provided. It is necessary to change the mounting position of the front and rear. Since the latter method of changing the mounting position of the guide rail is not practical, the former method of changing the position of the vertical support shaft is generally adopted.However, in the conventional door guide device of this kind, the vertical method is used. Unless the support shaft is removed from the door, the position of the vertical support shaft cannot be adjusted in the front-rear direction (the thickness direction of the door).

[0004]

Therefore, when it is necessary to adjust the position of the door in the front-rear direction (thickness direction of the door) when the door is closed, the door must be removed.
There is a disadvantage that the adjustment work requires a lot of labor and time.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a door guiding apparatus which can solve the above-mentioned conventional problems. A door guide device in which a guided member (a roller 7 with a collar) supported on an outer end of a vertical support shaft 4 protruding from the door 1 is fitted to a guide rail 8 is indicated by a reference numeral, The vertical support shaft 4 is supported by the casing 3 attached to the door 1 so as to be able to rotate around the axis of the vertical support shaft 4, and is also eccentric from the eccentric position of the outer end of the vertical support shaft 4. The eccentric shaft portion 15 supports the guided member (the roller 7 with a flange), and at least a portion of the vertical support shaft 4 protruding from the door 1 has a rotation operating portion 2.
0 is formed, and click mechanisms 19 and 27 for frictionally locking the rotation of the vertical support shaft 4 at appropriate angles are interposed between the casing 3 and the vertical support shaft 4. .

In implementing the apparatus of the present invention having the above configuration,
Specifically, the click mechanism 19 is connected to the vertical support shaft 4.
A circumferential uneven surface 17 formed on the outer peripheral surface of the disc-shaped member 6 which rotates integrally with the casing 3 and is supported so as to be able to rotate only at a fixed position with respect to the casing 3, and the uneven surface 17 of the disc-shaped member 6 has an inner surface. A circumferential uneven surface 18 formed on the inner circumferential surface of the casing 3 so as to fit therewith can be provided.

In this case, the vertical support shaft 4 is supported by the casing 3 so as to be able to move up and down, and is urged outward by a spring 5 provided in the casing 3 to be guided by the guide member (the roller 7 with a collar). If it is a door guiding device configured so as not to come off from the guide rail 8, the disc-shaped member 6 is internally fitted and supported on the outer end of the casing 3 so that it can only rotate, and the vertical support shaft 4 The square shaft portion 13 can penetrate the disc-shaped member 6 so as to be slidable only in the axial direction relative to the disc-shaped member 6, so that the disc-shaped member 6 can prevent the vertical support shaft 4 from coming off from the casing 3.

The click mechanism 27 includes a circumferential uneven surface 26 formed on the inner peripheral surface of a vertical shaft support hole (small diameter support hole 9) of the casing 3 and a radially The spheres 22 and 23 may be configured to be movably internally fitted and urged by a spring 24 so as to partially fit in the circumferential uneven surface 26.

Also in this case, as described above, the vertical support shaft 4 is supported by the casing 3 so as to be able to move up and down within a certain range, and is installed in the vertical support shaft support hole (small diameter support hole 9) of the casing 3. If the guide device is a door guide that is configured to be urged outward by the spring 5 so that the guided member (the collared roller 7) does not come off the guide rail 2, the circumferential uneven surface 26 is What is necessary is just to form so that it may be continued in the axial center direction to the inner peripheral surface of the vertical shaft support hole (small diameter support hole 9) of the casing 3.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
Is a sliding door (or folding door) of a top-hanging type, and the guide device 2 of the present invention is attached to a lower side of both front and rear ends (lower end of a free end in the case of a folding door). The guide device 2 includes a casing 3, a vertical support shaft 4, a spring 5, a disc-shaped member 6, and a flanged roller 7 as a guided member. On the floor side, a roller body 7a of the flanged roller 7 is provided. The fitting groove 8a and the brim portion 7b of the brim roller 7
A guide rail 8 having both shoulder surfaces 8b with which the lower side surface abuts is laid.

The details of the guide device 2 will be described. The casing 3 is a bottomed cylindrical member having a large-diameter portion 3a on the opening end side, and a small-diameter support hole formed over substantially the entire length excluding the large-diameter portion 3a. 9 and a large-diameter bearing hole 10 formed inside the large-diameter portion 3a and arranged concentrically with the small-diameter bearing hole 9. An inwardly projecting circumferential portion 11 for slightly reducing the diameter is formed. The casing 3 is fitted and fixed in a mounting hole 12 formed from the lower end surface of the door 1, and the opening side end surface thereof is flush with the lower end surface of the door 1.

The vertical support shaft 4 has a square shaft portion 13 which is loosely fitted in the small-diameter support hole 9 of the casing 3 (in the illustrated example, the cross section is hexagonal, but it may be square or other polygonal). ,
A cylindrical portion 14 concentrically connected to the inner end of the square shaft portion 13 and supported by the small diameter support hole 9 of the casing 3, and a roller bearing protruding from an eccentric position of the outer end of the square shaft portion 13. And an eccentric shaft portion 15 for use. Spring 5
Is interposed between the rear end face of the small-diameter support hole 9 of the casing 3 and the cylindrical portion 14 of the vertical support shaft 4 fitted in the small-diameter support hole 9 to urge the vertical support shaft 4 outward. .

The disk-shaped member 6 is fitted in the large-diameter bearing hole 10 of the casing 3 by being pressed in the axial direction so as to overcome the resistance caused by the inwardly protruding circumferential portion 11. It is supported in the diameter support hole 10 so that only rotation is possible. The vertical support shaft 4 penetrates through the through-hole 16 provided concentrically in the disk-shaped member 6 so as to be slidable only in the axial direction, and the vertical support shaft 4 and the disk-shaped member 6 rotate integrally. It is configured as follows. The vertical support shaft 4 urged outward by the spring 5 is prevented from falling out of the casing 3 by the portion of the inner end of the columnar portion 14 projecting from the square shaft portion 13 abutting on the disk-shaped member 6. Have been. Thus, a circumferential uneven surface 17 is provided on the outer peripheral surface of the disk-shaped member 6, and the inner circumferential surface of the large-diameter support hole 10 of the casing 3 is so fitted that the circumferential uneven surface 17 of the disk-shaped member 6 fits inside. Circumferential uneven surface 18 on the surface
Are formed, and both circumferentially uneven surfaces 17, 18 are fitted to each other.
Thus, a click mechanism 19 that frictionally locks the rotation of the vertical support shaft 4 at appropriate angles is configured.

Roller 7 with flange as guided member
Is supported on the eccentric shaft portion 15 at the outer end of the vertical support shaft 4 so as to be able to rotate only. More specifically, the ridge 7 is fitted in a concave groove 15 a provided at an intermediate position of the eccentric shaft 15.
d is formed on the inner surface of the shaft hole 7c of the flanged roller 7,
The eccentric shaft portion 15 is pushed in the axial direction into the shaft hole 7c of the flanged roller 7 so as to overcome the resistance caused by the ridge portion 7d, and the ridged roller 7 is fitted by fitting the ridge portion 7d and the concave groove portion 15a. Are supported on the eccentric shaft portion 15 so that only rotation is possible.

According to the guide device 2 having the above configuration, as shown in FIG. 1, the square shaft portion 13 of the vertical support shaft 4 protruding from the lower end of the door 1 is provided with a tool such as a spanner S as shown in FIG. And a rotation operation unit 20. Therefore, when adjusting the position of the closed door 1 in the front-back direction (FR direction in FIG. 1),
A wrench S is inserted into the gap between the lower end of the door 1 and the floor from the lateral side of the door 1, and the wrench S is engaged with the rotation operation unit 20 of the vertical support shaft 4, and the vertical support shaft 4 is The eccentric shaft portion 15 revolves around the axis of the vertical support shaft 4 by rotating in the normal and reverse directions, and thereby the position of the flanged roller 7 is changed to the door 1.
In the front-rear direction (FR direction in FIG. 1). In other words, the door 1 is moved in the front-rear direction (F-R in FIG. 1) with respect to the ribbed roller 7 fitted on the guide rail 8.
Direction).

In the above operation, a click mechanism 19 is interposed between the casing 3 and the disk-shaped member 6 which rotates integrally with the vertical support shaft 4. 18 by applying a rotational operation force to overcome the frictional resistance due to the fitting of the vertical support shaft 4, the vertical support shaft 4 rotates, and the front-rear direction of the door 1 (F-R in FIG. 1).
Direction). After the position adjustment, the vertical support shaft 4 rotates unexpectedly due to frictional resistance due to the fitting of the circumferential uneven surfaces 17 and 18 of the click mechanism 19, and the position of the door 1 in the front-rear direction fluctuates. There is no.

FIGS. 1 and 3A show that the eccentric shaft portion 15 (the roller 7 with the collar) moves forward (in the direction F) with respect to the center position CL of the vertical support shaft 4 (the neutral position in the front-rear direction of the door 1). FIG. 3B shows a state where the door 1 has moved to the rear side (R direction) with respect to the guide rail 8 by the maximum amount with respect to the guide rail 8, and FIG. 3B shows that the eccentric shaft part 15 (the roller 7 with brim) is vertical. Axial position of support shaft 4 (neutral position of door 1 in the front-rear direction) CL
3, in other words, a state in which the door 1 is at the neutral position of the adjustment range in the front-rear direction with respect to the guide rail 8, and FIG.
C indicates a state in which the eccentric shaft portion 15 (the roller 7 with the collar) has moved rearward (in the R direction) by the maximum amount RL with respect to the axial center position (the neutral position in the front-rear direction of the door 1) CL of the vertical support shaft 4, in other words Then, the state where the door 1 has moved to the front side (the F direction) by the maximum amount with respect to the guide rail 8 is shown. The vertical support shaft 4 to be rotated can be rotated forward and backward in units of a click angle of the click mechanism 19 (a unit angle of the unevenness of the circumferential uneven surfaces 17 and 18, for example, 2 degrees). The position adjustment in the front-rear direction 1 can be performed intermittently in units of the click angle of the click mechanism 19 within the range of FL + RL.

Next, a second embodiment of the present invention will be described with reference to FIGS. In FIGS. 4 and 5, parts corresponding to those in the previous embodiment are denoted by the same reference numerals.
Thus, a through hole 21 is provided in the inner end cylindrical portion 14 of the vertical support shaft 4 in the diameter direction, and a spring 24 is interposed between the two spherical bodies 22 and 23 loosely fitted in the through hole 21.
Both spheres 22 and 23 are urged to be pushed outward in the radial direction. On the other hand, in the small-diameter bearing hole 9 of the casing 3,
The spherical ends 22, 23 in the cross section are all over the inner peripheral surface.
Are formed so as to be continuous in the axial direction with a circumferential concave-convex engagement surface 26 having a shape in which arcuate concave grooves 25 into which a part of the concave grooves 25 are fitted are continuously arranged at equal circumferential intervals. These spheres 22, 23,
A click mechanism 27 is constituted by the spring 24 and the circumferential uneven surface 26 on the casing 3 side. Therefore, in the previous embodiment, the disc-shaped member 6 and the casing 3
The click mechanism 19 is not provided because it is unnecessary, and the disc-shaped member 6 is internally fitted to the casing 3 so that it can only rotate. Further, if the vertical support shaft 4 is prevented from coming off the casing 3 by another method, the disk-shaped member 6 may not be provided.

Also in the second embodiment, the vertical support shaft 4 is rotated around its axis by using the angular shaft portion 13 of the vertical support shaft 4 protruding from the lower end of the door 1, that is, the rotary operation portion 20. By rotating the roller 1 forward and backward, the position of the roller 7 with the flange supported by the eccentric shaft 15 is moved in the front-rear direction with respect to the door 1, and the position of the door 1 with respect to the guide rail 8 is adjusted in the front-rear direction. Can be. At this time, by applying to the vertical support shaft 4 a rotational operation force that overcomes the frictional resistance due to the engagement between the spherical bodies 22 and 23 of the click mechanism 27 and the circumferential uneven engagement surface 26, the vertical support shaft 4 rotates. And door 1
Can be adjusted in the front-rear direction. After the position adjustment, the spheres 22 and 23 of the click mechanism 27 are
The vertical support shaft 4 rotates unexpectedly due to frictional resistance caused by fitting into the circumferential uneven surface 26 on the casing 3 side by the urging force of the door 4, and the position of the door 1 in the front-rear direction fluctuates. There is no.

The vertical support shaft 4 is configured to be able to move up and down,
Although the spring 5 urges the door to protrude from the door, even if the distance between the door and the guide rail 8 fluctuates slightly, the flanged roller 7 as a guided member is disengaged from the guide rail 8. This is for the purpose of avoiding this, and is not an essential configuration of the present invention. If the vertical support shaft 4 is supported on the casing 3 so as to be able to rotate only at a fixed position, the disc-shaped member 6 may be fixed to the vertical support shaft 4 or may be fixed to the vertical support shaft 4. It can also be formed integrally. Of course, if the method of supporting the vertical support shaft 4 on the casing 3 is changed, the disk-shaped member 6 itself can be eliminated. Further, the configuration of the click mechanism is not limited to the above-described embodiment. Further, the guided member supported on the eccentric shaft portion at the outer end of the vertical support shaft includes a roller 7 with a flange.
However, the present invention is not limited to this, and may be a roller without a brim, or a slider that does not rotate on its own as the door moves.

[0021]

As described above, according to the door guiding apparatus of the present invention, the vertical support shaft protruding from the door utilizing the gap between the door and the guide rail on the floor side or the guide rail on the ceiling side. The vertical eccentric shaft at the outer end of the vertical support shaft is rotated by rotating the vertical rotation shaft around its axis against the friction locking force of the click mechanism by, for example, engaging a tool with the rotation operation unit of the vertical rotation shaft. The position of the guided member supported by the portion can be adjusted in the front-rear direction (the thickness direction of the closed door). In other words, the position in the front-rear direction of the door can be easily adjusted by a simple operation without removing the door as in the related art.

According to the structure of the second aspect, the structure of the click mechanism can be simple and inexpensive, and
The click angle of the click mechanism can be made sufficiently small by simply reducing the unevenness of the circumferential uneven surface on the casing side and the circumferential uneven surface of the vertical support shaft (disk-shaped member) that fits this,
The position in the front-rear direction of the door can be finely adjusted in a state close to stepless.

According to the third aspect of the present invention, the device of the present invention is provided with a vertical support shaft which can be moved up and down and is urged outward by a spring. The present invention can be applied to the guide device configured as described above, and in this case, the effect of the configuration described in claim 2 can be obtained.

According to the fourth aspect of the present invention, it is possible to obtain a guide device which ensures that the vertical support shaft is frictionally locked by the click mechanism and can withstand repeated adjustments over a long period of time. it can.

Further, according to the structure of claim 5,
The device of the present invention can also be applied to a guide device having a vertical support shaft which can be moved up and down and urged outward by a spring, and which is configured so that the guided member does not unexpectedly come off the guide rail. In this case, the above-mentioned claim 4
The effect of the configuration described in (1) can also be obtained.

[Brief description of the drawings]

FIG. 1A is a longitudinal sectional front view showing an embodiment of the device of the present invention implemented as a guide device for a lower end portion of a hanging sliding door, and FIG. B is an enlarged cross-sectional view of the main part.

FIG. 2 is an exploded perspective view of the device of the present invention shown in FIG. 1 without a spring.

FIGS. 3A to 3C are diagrams for explaining the longitudinal movement of a flanged roller (guided member) accompanying a rotation operation of a vertical rotation shaft.

FIG. 4 is a longitudinal sectional front view in a use state showing a second embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view of a main part of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 3 Casing 4 Vertical support shaft 5 Spring 6 Disc-shaped member 7 Roller with a flange (guided member) 8 Guide rail 13 Square shaft portion of vertical support shaft 14 Cylindrical portion of vertical support shaft 15 Eccentric shaft portion of vertical support shaft 17 , 18 Circumferential uneven surface 19, 27 Click mechanism 20 Rotating operation part 22, 23 Spherical body 24 Spring 26 Circumferential uneven surface

Claims (5)

[Claims] 1. A door guide device in which a guided member supported on an outer end of a vertical support shaft protruding from a door is fitted to a guide rail, wherein the vertical support shaft is a casing attached to the door. The eccentric shaft portion is rotatably supported around the axis of the vertical support shaft, and an eccentric shaft portion is protruded from an eccentric position of an outer end of the vertical support shaft, and the guided member is supported on the eccentric shaft portion. A rotation mechanism is formed at least at a portion of the vertical support shaft protruding from the door, and a click mechanism is provided between the casing and the vertical support shaft to frictionally lock the rotation of the vertical support shaft at appropriate angles. A door guidance device that is interposed. 2. A circumferential uneven surface formed on an outer peripheral surface of a disk-shaped member, wherein said click mechanism is rotated integrally with said vertical support shaft and supported on said casing so as to be able to rotate only at a predetermined position; 2. The door guide device according to claim 1, further comprising a circumferential uneven surface formed on an inner circumferential surface of the casing such that the uneven surface of the disc-shaped member fits inside. 3. 3. A guide device for a door, wherein the vertical support shaft is supported by a casing so as to be able to move up and down, and is urged outward by a spring provided in the casing. The vertical support shaft penetrates at its angular axis portion so as to be able to slide only in the axial direction relative to the disc-shaped member, and the disc-shaped member is The door guide device according to claim 2, wherein the vertical support shaft is prevented from falling off. 4. The click mechanism has a circumferential uneven surface formed on an inner peripheral surface of a vertical support shaft support hole of a casing, and is fitted inside the vertical support shaft so as to be movable in a radial direction, and the click mechanism is provided with a spring. 2. The door guiding device according to claim 1, wherein the guiding device comprises a sphere which is biased so as to partially fit in the circumferential uneven surface. 5. A door guide device, wherein said vertical support shaft is supported by a casing so as to be able to ascend and descend within a predetermined range, and is urged outward by a spring provided in a vertical support shaft support hole of the casing. The door guiding device according to claim 4, wherein the circumferential uneven surface is formed so as to be continuous with the inner circumferential surface of the vertical shaft support hole of the casing in the axial direction.