JPH04319193A - Floor roller and slide door of gate using the same - Google Patents

Abstract

PURPOSE:To fit an interval between rollers to a moving body such as slide doors of a gate, etc., or to the width of a rail provided to the moving body to adjust simply and easily by providing the other roller to one roller fixed rotatably so that it is capable of approaching or separating when a pair of rollers are loaded on a bearing shaft to form a floor roller. CONSTITUTION:A floor roller 1 bearing a moving body 14 such as slide doors of a gate, etc., or a rail 15 provided to the moving body is constituted of a pair of rollers 5 and 6. One roller 6 is fixed rotatably to a bearing shaft constructed between bearing plates 3a and 3b, and the other roller 5 is fixed rotatably to a screw member 13 interlocked with a male screw section 12 formed on the bearing shaft 4. When the bearing shaft 4 is rotated, the screw member 13 moves along the bearing shaft 4, so that the other roller 5 approaches one roller 6 or separates therefrom and an interval between both rollers 5 and 6 can be freely adjusted.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to a door roller whose distance between rollers can be freely adjusted according to the width of a moving body;
The present invention also relates to a sliding gate using the door roller.

0002

[Prior Art] A single-opening or double-opening sliding gate installed at the entrance of a relatively wide place such as a factory or school is basically disclosed in Japanese Utility Model Publication No. 48-26511. A top and bottom wheel with built-in bearings are rotatably attached to the top and bottom of a box-shaped box, and a door that moves left and right is inserted between the top and bottom tops to open and close the box. The top and bottom of the door are supported by the above-mentioned frames.

0003

[Problems to be Solved by the Invention] The gate disclosed in the above-mentioned publication has a box supporting the gate fixed to one side of the gate, and then
This has many practical advantages, such as the fact that the installation work can be completed by simply inserting the opening/closing door into the box. As shown in Fig. 4, this gate is constructed by adding rails with a chevron-shaped cross section to the upper and lower frames of the opening/closing door by welding, etc., and attaching a piece with a drum-shaped cross section that engages with the rails to the upper and lower frames of the door. The gap between the gate and the frame is adjusted by adjusting the adjustment screw according to the width between the top and bottom of the gate, thereby making the movement of the gate smoother. It is very cumbersome, and if the cross-section of the rail and the cross-section of the piece are almost the same, no play will occur, but if there is a misalignment in their cross-sectional shapes, play will occur and a squeak will occur. The shape of the piece must always match the shape of the piece used. On the other hand, the size of a gate varies depending on the frontage of the place where it is installed, and the size of the rails attached to the upper and lower frames also varies depending on the size of the gate. therefore,
There are many problems that need to be solved in practice, such as the need to keep a variety of parts in stock for the pieces used, and the larger the gate, the more effort is required to adjust the rails and the pieces.

[0004] In view of the current situation, the present invention consists of a door roller consisting of a pair of rollers, one rotatably fixed roller and the other rotatable roller attached so as to be close to or separate from each other. The object of the present invention is to provide a door roller capable of freely adjusting the interval between rollers according to the width of a moving object to be moved or the width of a rail attached to the moving object, and a sliding gate using the door roller. It is.

[0005]

[Means for Solving the Problems] In the door roller of the present invention, a support shaft is rotatably installed between a pair of bearing plates arranged at a predetermined distance on a base plate, and the support shaft is mounted on the support shaft. One roller is rotatably but immovably mounted, and the other roller is mounted on the same shaft so that it can move toward and away from the roller and can rotate, and by rotating the support shaft, one of the rollers can be rotated. The present invention is characterized in that the distance between the rollers can be adjusted by moving the other roller closer to or away from the other roller.

[0006] A pair of rollers mounted on the same support shaft each have a stepped portion formed on their opposing surfaces for placing a moving body or a rail attached to the moving body, respectively. A specific method for making the other roller freely approach or move away from a roller that is fixed so that it can rotate but cannot move is, for example, by moving the support shaft that supports the roller from approximately the center to the one bearing plate. A threaded member is formed through the threaded portion on the outer periphery thereof, and a threaded member having a female threaded portion formed on the inner periphery is engaged with the male threaded portion in an axially movable and unrotatable state. The other roller is rotatably but immovably attached to the member, and by rotating the support shaft, the screw member that is unrotatably screwed to the support shaft advances or moves along the axial direction. To move backward, one fixed roller approaches or moves away from the other roller.

[0007] The base plate constituting the door roller is integrally formed with an upright plate that stands upward at right angles along one edge of a rectangular plate body, and the upper end of the upright plate is spaced apart at a predetermined distance. A support shaft is used to support the opposing stands, and a bolt hole is formed in the vicinity of the other end to pass vertically through the stand, and a height adjustment bolt is engaged with the bolt hole. If the base plate is configured to rotate up and down about the support shaft by moving it up and down, the mounting position of the door roller can be adjusted in the up and down direction.

Further, the sliding gate using the door roller of the present invention has a support shaft rotatably installed between a pair of bearing plates arranged at a predetermined distance on a base plate, and One roller is rotatably but immovably mounted on the roller, and the other roller is rotatably mounted on the same shaft so that it can move toward and away from the roller, and the support shaft can be rotated. A plurality of door rollers configured to adjust the distance between the rollers by bringing one roller closer to or farther away from the other roller are arranged at the upper and lower portions of a support made of a frame erected on a foundation, and The rails of the gate main body, each having a rectangular cross-sectional rail protruding along the upper and lower frames, are supported by door rollers disposed above and below within the support, and the gate main body is penetrated in an upright state within the support. It is characterized by being able to run in the left and right directions.

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

0010

[Operation] In the door roller of the present invention, one of a pair of rollers is rotatably but immovably mounted on the same support shaft, and the other roller is rotatable and freely movable in the axial direction. By rotating the support shaft, the other roller can be moved closer to or away from the fixed roller, so the width of the moving object such as a gate or the rail attached to the moving object can be adjusted. It is possible to obtain a door roller having an optimal support width according to the width of the door.

[0011] In addition, the sliding gate using this door wheel is arranged at the upper and lower parts of the support body that supports the gate body to support the gate body, and the door rollers that smooth the movement of the gate body are arranged on the upper and lower parts of the support body that supports the gate body. The distance between the pair of rollers can be easily and easily adjusted to match the width of the rails attached to the upper and lower frames, so the width of the gate body and the rails attached to it can be adjusted easily. Even if there is a change, only one type of door roller can be used.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the door roller of the present invention and a sliding gate using the door roller will be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan view of the door roller according to the present invention, and FIG. 2 is a side view of the same. A pair of bearing plates 3a, 3b disposed facing each other;
3b, a support shaft 4 rotatably installed between the support shafts 4 and 3b;
It is composed of a pair of rollers 5 and 6 that are rotatably mounted on the top.

The substrate 2 in the illustrated embodiment has an integrally formed upright plate 2a that stands up along one end 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 the substrate 2a, and a bolt hole 2c is formed in the center near the other edge of the substrate 2. When mounting the door roller 1 on the base 7, the base plate 2 is attached to the upper end of a pair of stands 8a and 8b that are erected on the base 7 at a predetermined distance as shown in FIG. After inserting the support bolt 9 from one stand 8a and passing the support bolt 9 through the bolt hole 2b formed in the upright plate 2, the tip part is made to protrude from the other stand 8b and the nut 10 is engaged. By aligning the stands 8a and 8b, the stands 8a and 8b can be rotatably mounted, and if the height adjustment bolt 11 is fitted by engaging it with the bolt hole 2c formed on the other end edge, the height adjustment bolt 11 can be screwed in. By rotating the substrate 2, the substrate 2 is lifted upward using the support bolt 10 as a fulcrum. Moreover, if the height adjustment bolt 11 is rotated in the loosening direction, the base plate 2 is rotated downward, so that the height of the base plate 2 can be freely adjusted. Note that if the height of the substrate 2 does not need to be adjusted, the upright plate 2 is not necessary.

A support shaft 4 installed between a pair of bearing plates 5 and 6
forms an engaging portion 4a with a rectangular cross section for engaging a wrench at the tip, and also threads a screw from approximately the center of the bearing plates 5, 6 to a portion sufficient to penetrate one of the bearing plates 5. The male threaded portion 12 has a threaded member 13 having a female thread 13a formed on the inner circumferential portion thereof to engage with the male thread of the male threaded portion 12. This screw member 13
, a part thereof always remains engaged with one bearing plate 3a and is prevented from rotating, but as the support shaft 4 rotates in the screwing direction, it moves in the direction of the other bearing plate 3b. At the same time, it moves backward toward the bearing plate 3a side by rotating in the direction of loosening.

A pair of rollers 5 mounted on the support shaft 4
, 6 are stepped portions 5a, 6 for supporting a moving body such as a gate or a rail attached to a moving body on opposing surfaces, respectively.
A is integrally formed with a bearing plate 3a and has a built-in bearing as shown in FIG.
The roller 6 is rotatably fixed to the outer periphery of the screw member 13 on the inner side thereof, and the other roller 6 is rotatably fixed to the outer periphery of the support shaft 4 on the side of the bearing plate 3b where no male thread is formed. In addition, in the specification, when the rollers 5 and 6 are rotatably fixed, it means that the rollers 5 and 6 themselves rotate;
This means that the mounting position will not change under any circumstances.

As is clear from the enlarged cross-sectional view of the main part shown in FIG. 3, the door roller 1 having such a structure is constructed by engaging the engagement portion 4a of the support shaft 4 with, for example, a wrench, and twisting the support shaft 4 in the screwing direction. When the screw member 13 is rotated, the rotation of the screw member 13, which is prevented from rotating by the bearing plate 3a, is caused by the engagement between the male thread portion 12 formed on the support shaft 4 and the female thread 13a of the screw member 13, so that the screw member 13 is rotated from the other side. It moves in the direction of the bearing plate 3b. At that time, one roller 6 is directly rotatably fixed to the support shaft 4.
Although the mounting position does not change at all even when the support shaft 4 rotates, the other roller 5, which is rotatably fixed to the screw member 13, moves in the direction of the one roller 6 as the screw member 13 moves. Due to the movement, the distance between both rollers 5 and 6 becomes narrower. On the other hand, when the roller 5 is located at the position shown by the dashed line in FIG. The rollers 5 and 6 also move backward, and the distance between the rollers 5 and 6 becomes wider.

In FIG. 3, reference numeral 14 indicates a moving body supported between a pair of rollers 5 and 6, and 15 indicates 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 structure will be described. The sliding gate 20 includes a gate main body 21 and a support body 25 that supports this gate main body 21.
It is a single-opening type consisting of. Gate body 2
1, a large number of vertical bars are arranged at predetermined intervals inside a horizontally long rectangular frame, and belt-shaped rails 22 and 23 with a flat cross section made of synthetic resin are installed on the upper and lower frames, respectively. It is removably fixed with screws.

The support 25 has a base plate 28 fixed to the upper surface of the foundation concrete 26 with anchor bolts 27, and four pillars 29a, 29b, 29c, 29 placed on the base plate 28 so as to have a flat rectangular shape.
Support columns 29a, 2 are installed vertically and face each other in the left and right direction.
The upper parts between 9b and 29c and 29d are interconnected with beams 30a and 30b to form a frame, and the upper parts between pillars 29a and 29c and between 29b and 29d, which face each other in the front and back direction, are further connected with beams. 31a and 31b are connected to each other, and the gate main body 21 passes through the support body 25 in an upright state between the opposing frames in the front-rear direction, so that the slide gate 20 can be freely moved in the left-right direction. This is what is done.

When the gate main body 21 is movably supported on the support body 25, a pair of door wheels 1a are provided on the base plate 28 at a predetermined interval in the left and right direction, as shown in FIGS. 3 and 4. , 1b are arranged on the same line, and a pair of door wheels 1c, 1b are similarly arranged on the support above the door wheels 1a, 1b.
1d are respectively disposed, and these door rollers support rails 22 and 23 attached to the gate main body 21. At that time, each door roller has a structure that allows the spacing between the rollers to be adjusted freely, as mentioned above, so
Keeping the distance between the pair of rollers slightly wider than the width of the rails 22 or 23, and with the rails 22 and 23 engaged with the stepped portions formed on the rollers, a wrench is attached to the engaging portion of the support shaft that supports the rollers. The rail is adjusted so that it moves smoothly between the rollers by engaging the rollers and rotating the support shaft in either direction. If the door rollers used are equipped with the height adjustment mechanism described above, the distance between the upper and lower door rollers can be adjusted accurately to match the height of the gate body.

[0022]

[Effects of the Invention] In the door wheel of the present invention, when a pair of rollers is rotatably mounted on a support shaft, the other roller is mounted so as to be close to or separate from one roller, so that the door wheel can be used easily. The width between the rollers can be simply and easily adjusted to match the width of the frame frame or frame of the movable body that is to be moved smoothly, and as a result, the movable body can be supported without wobbling. Note that if this door roller is equipped with a height adjustment mechanism, the door roller can be set according to the vertical width of the moving body.

On the other hand, in the sliding gate of the present invention, one roller is rotatably mounted on a support shaft, and the other roller is provided so as to be close to or separate from each other.A door roller is attached to a support that supports the gate main body, and the gate The gate body can be supported by simply and easily adjusting the distance between the rollers according to the width of the rails attached to the top and bottom of the main body, and there is no wobbling in the gate body when supporting the gate body on the support body. There is no creaking sound. In addition, even if the rails are replaced due to wear, the width between the rollers can be set to match the width of the newly installed rails, making the replacement work extremely easy, and also depending on the size of the gate itself and the width of the gate being used. Even if the width of the rails is different, only one type of door roller can be used, which has many practical advantages.

[Brief explanation of drawings]

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

FIG. 2 is a side view of the door roller shown in FIG. 1;

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

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

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

[Explanation of symbols]

1 Door car 2　　　　Substrate 3a Bearing plate 3b Bearing plate 4 Support shaft 4a Engagement part 5 Roller 5a Stepped section 6 Roller 6a　Stepped part 12 Male thread part 13 Screw member 14 Mobile object 15 Rail 20 Sliding gate 21　Gate body 22 Rail 23 Rail 25 Support

Claims (6)

[Claims] Claim 1: A support shaft is rotatably installed between a pair of bearing plates arranged at a predetermined distance on a substrate, and one roller of the pair of rollers is rotatable on the support shaft. At the same time, the other roller is mounted on the same shaft so that it can move toward and away from the one roller and can rotate freely, and by rotating the support shaft, the other roller can be attached to the one roller with respect to the other roller. A door roller characterized in that the distance between the rollers can be adjusted by moving them closer or farther apart. 2. The support shaft passes through one bearing plate from approximately the center and has a threaded portion formed on the outer periphery, and a threaded member having a female thread formed on the inner periphery of the male threaded portion is attached to the shaft. At the same time, the other roller is rotatably but unmovably attached to the threaded member, and the support shaft is rotated to form a part where no male thread is formed. Claim 1 characterized in that the roller is configured such that the distance between the rollers can be adjusted by moving the other roller closer to or away from one roller which is rotatably but immovably mounted.
The door roller mentioned. 3. The door roller according to claim 1, wherein each of the rollers has a stepped portion on an opposing surface for placing a moving body thereon. 4. The substrate has an upright plate integrally formed along one end edge, and the upper end of the upright plate is pivotally supported by a support shaft between stands facing each other at a predetermined distance. , a bolt hole is formed vertically through the bolt hole near the other edge, a height adjustment bolt is engaged with the bolt hole, and the height adjustment bolt is moved up and down to move the substrate along the support shaft. The door roller according to claim 1, 2 or 3, characterized in that it is configured to rotate up and down as a fulcrum. 5. A support shaft is rotatably installed between a pair of bearing plates arranged at a predetermined distance on a substrate, and one roller is rotatably but immovably mounted on the support shaft. At the same time, the other roller is mounted on the same shaft so that it can move toward and away from the one roller and can rotate freely, and by rotating the support shaft, the other roller can be brought close to the one roller. Alternatively, a plurality of door rollers configured so that the distance between the rollers can be adjusted by separating the rollers are arranged at the upper and lower parts of a support consisting of a frame erected on a foundation, and the cross section is rectangular along the upper and lower frames. The rails of the gate body, each of which has protruding shaped rails, are supported by door rollers disposed above and below within the support body, allowing the gate body to pass through the support body in an upright state and run in the left-right direction. A sliding gate. 6. The sliding gate according to claim 5, wherein the rails attached along the upper and lower frames of the gate main body are made of a synthetic resin material.