JPH086540B2 - Door car and sliding gate using the door car - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door roller in which the distance between rollers can be freely adjusted according to the width of a moving body.
And a slide gate using the door roller.

[0002]

2. Description of the Related Art A single-sided or double-sided sliding gate installed at the entrance of a relatively wide frontage such as a factory or a school is basically disclosed in Japanese Utility Model Publication No. 48-26511. As shown in the figure, the tops and bottoms of the box-shaped box, which have built-in bearings, are rotatably attached to the top and bottom, and the opening and closing doors that move in the left and right direction are inserted between the top and bottom to open The upper and lower sides of the door are supported by the top.

[0003]

SUMMARY OF THE INVENTION The gate disclosed in the above-mentioned publication is obtained by fixing a box supporting the gate to one side of the gate.
The installation work is completed by the extremely simple construction of inserting the opening / closing door into the box, which is a great practical advantage. As shown in FIG. 4, the gate is constructed by attaching rails having a mountain-shaped cross section to the upper and lower frames of the door for opening and closing by welding or the like, and a box having a drum-shaped cross section that engages with the rails. It is arranged above and below, and by adjusting the adjusting screw according to the width between the upper and lower sides of the gate, the clearance between the gate and the top is adjusted, so that the movement of the gate is smooth, so that adjustment is possible. It is extremely complicated, and rattle does not occur when the cross section of the rail and the cross section of the top are almost the same, but if there is a deviation in the cross-sectional shape of each other, rattling occurs and a squeaking noise occurs, so the rail It is required to always match the shape of and the shape of the frame used. On the other hand, the size of the gate varies depending on the frontage of the place where the gate is installed, and the size of the rail attached to the upper and lower frames also changes depending on the size of the gate. Therefore, it is necessary to stock various kinds of tops as parts, and there are many practical problems to be solved, such as increasing the size of the gate requires more effort in adjusting the rails and the tops. .

In view of the present situation, the present invention comprises a pair of rollers for a door roller, and one rotatable roller is fixed to the other rotatable roller so that the roller can be moved toward or away from the roller. An object of the present invention is to provide a door roller in which the interval between rollers can be freely adjusted according to the width of a moving body to be moved or the width of a rail attached to the moving body, and a sliding gate using the door roller. Is.

[0005]

In the door roller of the present invention, a support shaft is rotatably installed between a pair of bearing plates arranged at a predetermined interval on a base plate, and the support shaft is mounted on the support shaft. One roller is mounted rotatably and immovably, and the other roller is mounted on the same shaft so as to be capable of coming into contact with and separating from the one roller and rotatably, and by rotating the support shaft, It is characterized in that the other roller can be moved toward or away from the roller to adjust the distance between the rollers.

Each of the pair of rollers mounted on the same support shaft has a stepped portion for mounting a moving body or a rail attached to the moving body on the opposite surfaces. A specific means for allowing the other roller to move toward or away from the roller fixed so that it can rotate but cannot move is, for example, a support shaft that supports the roller, and one bearing plate from approximately the center. A screw member is formed so as to penetrate therethrough at an outer peripheral portion and a female screw is formed at an inner peripheral portion of the male screw portion so that the screw member is engaged with the screw member so as to be axially movable and non-rotatable. The other roller is rotatably and immovably mounted on a member, and a screw member screwed in a non-rotatable state with respect to the support shaft by rotating the support shaft advances or moves along the axial direction. Fixed to move backwards Other roller is close to or away from the roller.

The board constituting the door roller is formed by integrally forming a standing plate standing upright at a right angle along one edge of a rectangular plate body, and the upper end portion of the standing plate is provided with a predetermined interval. A support shaft is supported between the opposed stands, and a bolt hole is formed in the vicinity of the other end edge so as to penetrate in the vertical direction.The height adjustment bolt is engaged with the bolt hole to form the height adjustment bolt. If the substrate is configured to rotate up and down with the support shaft as a fulcrum by moving up and down, the mounting position of the door roller can be adjusted in the vertical direction.

Further, in a sliding gate using the door roller of the present invention, a support shaft is rotatably installed between a pair of bearing plates arranged at a predetermined interval on a substrate, and the support shaft is mounted on the support shaft. By mounting one roller rotatably and immovably on the other side, and mounting the other roller on the same shaft rotatably and freely in contact with and separating from the one roller, and rotating the support shaft. A plurality of door rollers, which are configured to adjust the distance between the rollers by moving the other roller close to or away from the one roller, are provided in the upper and lower portions of the support body formed of a frame body erected on the foundation, respectively. The rails of the gate main body, each of which has a rectangular cross-section along the upper and lower frames, are supported by door rollers arranged above and below the supporting body, and the gate main body is erected in the supporting body in a standing state. It can run in the left and right directions. The one in which the features.

The rails to be attached along the upper and lower frames of the gate main body have a rectangular cross section and a long length, and are formed of a tough and hard synthetic resin material such as acetal resin.

[0010]

According to the door roller of the present invention, one of the pair of rollers is mounted on the same support shaft so as to be rotatable but immovable, and the other roller is rotatable and movable in the axial direction. The other roller can be moved toward or away from one roller in a fixed state by rotating the support shaft so that the width of a rail such as a gate or a moving body attached to the moving body According to the above, it is possible to obtain a door roller having an optimum support width.

Further, a sliding gate using this door roller is arranged above and below the supporting body for supporting the gate main body to support the gate main body, and a door roller for smoothing the movement of the door main body or the gate main body. Since the distance between the pair of rollers can be easily and easily adjusted to the optimum width according to the width of the rails attached to the upper and lower frames, the width of the gate main body and the rails attached to it can be adjusted. Even if changed, only one type of door roller can be used.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the door roller of the present invention and a slide gate using the door roller will be specifically described below with reference to the accompanying drawings.

FIG. 1 is a plan view of a door roller according to the present invention, and FIG. 2 is a side view of the door roller. The door roller 1 basically has a rectangular substrate 2 and a predetermined space between the substrates 2. And a pair of bearing plates 3a, 3b arranged to face each other, and the bearing plates 3a, 3b.
A support shaft 4 rotatably installed between 3b and the support shaft 4
It is composed of a pair of rollers 5 and 6 rotatably mounted on the top.

The substrate 2 in the illustrated embodiment is formed by integrally forming a standing plate 2a which stands up along one edge of a metal rectangular plate having a predetermined thickness. A bolt hole 2b penetrating from one end to the other end is formed in the upper end of 2a, and a bolt hole 2c is formed in the central portion near the other end edge of the substrate 2. When the door roller 1 is mounted on the base 7, the base plate 2 is provided on the base 7 with a predetermined space between the base 2 and the stands 8a and 8b. Position, the support bolt 9 is inserted from one stand 8a, and the support bolt 9 is passed through the bolt hole 2b formed in the upright plate 2a.
The nut 10 is made to protrude by protruding the tip from the other stand 8b.
Is rotatably mounted between the stands 8a and 8b by engaging with the bolt holes 2 formed on the other end edge side.
When the height adjustment bolt 11 is engaged with and attached to c, the substrate 2 is lifted upward with the support bolt 9 as a fulcrum by rotating the height adjustment bolt 11 in the screwing direction. Further, when the height adjusting bolt 11 is rotated in the loosening direction, the substrate 2 is rotated downward, so that the height of the substrate 2 can be freely adjusted. In addition, when the height of the substrate 2 is not required to be adjusted, the standing plate 2 is not necessary.

A support shaft 4 installed between a pair of bearing plates 5 and 6.
Forms an engaging portion 4a having a rectangular cross section for engaging a wrench at the tip portion, and screws to a portion sufficient for penetrating one bearing plate 5 from the substantially central portion of the bearing plates 5 and 6. The male thread portion 12 is formed with a threaded member 13 having an internal thread 13a which engages with the male thread of the male thread portion 12 is mounted. This screw member 13
Part of which is always held in engagement with one bearing plate 3a and prevented from rotating, but moves in the other bearing plate 3b direction as the support shaft 4 rotates in the screwing direction. At the same time, the rotation in the loosening direction causes the bearing plate 3a to move backward.

A pair of rollers 5 and 6 mounted on the support shaft 4 have stepped portions 5a for supporting moving bodies such as gates or rails attached to the moving bodies on the surfaces facing each other.
6a is integrally formed with a built-in bearing as shown in FIG.
Inside a, the outer peripheral portion of the screw member 13 is rotatably fixed, and the other roller 6 is rotatably fixed to the outer peripheral portion of the support shaft 4 on the side of the bearing plate 3b where the male screw is not formed. . In the specification, rotatably fixing the rollers 5 and 6 means that the rollers 5 and 6 themselves rotate, but their mounting positions do not change in any case.

In the door roller 1 having such a structure, as is apparent from the enlarged sectional view of the main part shown in FIG. 3, for example, a wrench is engaged with the engaging portion 4a of the support shaft 4 to screw the support shaft 4 in the screwing direction. When the screw member 13 is rotated by the bearing plate 3a, the screw member 13 is prevented from rotating by the engagement of the male screw portion 12 formed on the support shaft 4 and the female screw 13a of the screw member 13. Of the bearing plate 3b. At this time, the one roller 6 directly rotatably fixed to the support shaft 4 has no change in the mounting position even if the support shaft 4 rotates, but the other roller 6 rotatably fixed to the screw member 13. Since the roller 5 moves in the direction of the one roller 6 as the screw member 13 moves, the distance between the rollers 5 and 6 becomes narrow. On the contrary, when the roller 5 is at the position shown by the alternate long and short dash line in FIG. 3, when the support shaft 4 is rotated in the loosening direction, the screw member 1
3 moves backward to the bearing plate 3a side, and at the same time, the roller 5 fixed to the screw member 13 also moves backward, so that the distance between the rollers 5 and 6 becomes wide.

In FIG. 3, reference numeral 14 is a moving body supported between the pair of rollers 5 and 6, and 15 is a rail attached to the lower surface of the moving body 14.

Next, an embodiment of a sliding gate using the door roller 1 having the above-mentioned structure will be described. The slide gate 20 includes a gate main body 21 and a support 25 that supports the gate main body 21.
It is a one-sided type composed of and. Gate body 2
In the first example, a large number of vertical bars are arranged at a predetermined interval inside a rectangular frame body that is long in the lateral direction, and strip-shaped rails 22 and 23 made of synthetic resin having flat cross sections are provided on the upper and lower frame bodies, respectively. It is detachably fixed with screws.

The support 25 has a base plate 28 fixed to the upper surface of the foundation concrete 26 by anchor bolts 27, and four support columns 29a, 29b, 29c, 29 are formed on the base plate 28 so that the plane is flat and rectangular.
The pillars 29a, 2 that stand upright and face each other in the left-right direction
The upper portions between 9b and 29c and 29d are connected to each other by beams 30a and 30b to form a frame body, and the upper portions between columns 29a and 29c facing each other in the front-rear direction and between 29b and 29d are further beamed. 31a and 31b are connected to each other, and the gate main body 21 is penetrated in a state of standing between the frame bodies of the support body 25 facing each other in the front-rear direction, so that the slide gate 20 is movable in the left-right direction. It is something to say.

When the gate main body 21 is movably supported by the support 25, a pair of door rollers 1a are provided on the base plate 28 with a predetermined space left and right as shown in FIGS. 3 and 4. , 1b are arranged on the same line, and a pair of door rollers 1c, 1c are similarly provided on the supporting members above the door rollers 1a, 1b.
1d are arranged respectively, and the rails 22 and 23 attached to the gate main body 21 are supported by these door rollers. At that time, since each door roller has a structure in which the distance between the rollers can be freely adjusted as described above,
With the spacing between the pair of rollers kept slightly wider than the width of the rails 22 or 23, and with the rails 22 and 23 engaged with the stepped portion formed on the rollers, the wrench is attached to the engagement portion of the support shaft that supports the rollers. Are engaged and the support shaft is rotated in either direction so that the rail moves smoothly between the rollers. In addition, if the door rollers to be used are equipped with the height adjusting mechanism described above, it is possible to accurately fit the intervals between the door wheels arranged above and below according to the height of the gate main body.

[0022]

According to the door roller of the present invention, when the pair of rollers are rotatably mounted on the support shaft, the other roller is mounted on the roller so that the other roller can be moved toward or away from the roller. It is possible to easily and easily adjust the distance between the rollers to a width adapted to the lateral width of the frame rail or the frame of the moving body to be smoothly moved, and as a result, the moving body can be supported without rattling. If this door roller is provided with a height adjusting mechanism, the door roller can be set according to the vertical width of the moving body.

On the other hand, in the slide gate of the present invention, a door roller provided so that one roller rotatably mounted on the support shaft can be moved toward or away from the other roller is attached to a support body for supporting the gate body. It is possible to easily and easily adjust the distance between the rollers according to the width of the rails attached to the top and bottom of the main body to support the gate main body, and when supporting the gate main body on the support, rattling does not occur in the gate main body, No squeaking sound is generated. Also, even if the rail is replaced due to wear of the rail, the width between the rollers can be set according to the width of the newly installed rail, so replacement work is extremely easy and the size of the gate itself and the use Even if there is a difference in the width of the rails, there is a great practical advantage that only one type of door roller can be used.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of a door roller of the present invention.

FIG. 2 is a side view of the door roller shown in FIG.

FIG. 3 is a partially cutaway enlarged sectional view of a main part of the door roller of the present invention.

FIG. 4 is a partially cutaway side view showing an embodiment of a slide gate using the door roller of the present invention.

5 is a plan view of the slide gate shown in FIG. 4. FIG.

[Explanation of symbols]

 1 Door roller 2 Substrate 3a Bearing plate 3b Bearing plate 4 Support shaft 4a Engagement part 5 Roller 5a Step part 6 Roller 6a Step part 12 Male screw part 13 Screw member 14 Moving body 15 Rail 20 Sliding gate 21 Gate body 22 Rail 23 Rail 25 Support

Claims (6)

[Claims] 1. A device which is arranged on a substrate at a predetermined interval.
A support shaft is rotatably installed between a pair of bearing plates, one roller of a pair of rollers is rotatably fixed on the support shaft, and the other roller is mounted on the same shaft with respect to the one roller. It is mounted so that it can come into contact with and separate from the other roller and can be rotated, and by rotating the support shaft, the other roller can be moved toward or away from one roller to adjust the distance between the rollers. Door car to do. 2. The supporting shaft is a threaded member having a threaded portion formed on an outer peripheral portion of the support shaft, penetrating one bearing plate from a substantially central portion, and a female thread formed on an inner peripheral portion of the male threaded portion. In a state of being movable in the direction and non-rotatably engaged, and at the same time, the other roller is rotatably and immovably attached to the screw member,
By rotating the support shaft, one roller rotatably and immovably mounted on the part where the male screw is not formed can be made to approach or separate the other roller to adjust the distance between the rollers. The door roller according to claim 1, wherein the door roller is a door roller. 3. The door roller according to claim 1, wherein each of the rollers has a step portion for mounting a moving body on a surface facing each other. 4. The substrate has a standing plate integrally formed along one edge thereof, and an upper end of the standing plate is pivotally supported by a support shaft between stands opposed to each other at a predetermined interval. , A bolt hole is formed in the vicinity of the other end edge so as to penetrate in the vertical direction, a height adjusting bolt is engaged with the bolt hole, and the height adjusting bolt is moved up and down to move the substrate to the support shaft. The door roller according to claim 1, 2 or 3, wherein the door roller is configured to rotate up and down as a fulcrum. 5. A substrate which is arranged on a substrate at a predetermined interval.
A support shaft is rotatably installed between a pair of bearing plates, and one roller is rotatably and immovably mounted on the support shaft, and the other roller is mounted on the same shaft with respect to the one roller. Based on the foundation, there is a door roller mounted so that it can be freely moved in and out of contact with each other, and that by rotating the support shaft, one roller can be moved toward or away from the other roller to adjust the distance between the rollers. A plurality of rails having a rectangular cross section are provided along the upper and lower frames, respectively. A sliding gate, which is supported by a door roller provided and is capable of running in the left-right direction while penetrating the main body of the gate while standing upright in the support body. 6. The sliding gate according to claim 5, wherein the rails mounted along the upper and lower frames of the gate main body are made of a synthetic resin material.