JPH0133757Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a door roller mechanism for a telescoping gate that allows adjustment of the mounting height of the door roller.

Conventional technology A conventional telescoping gate with adjustable mounting height of the door roller, such as Utility Model No. 57-50597
In this issue, the lower ends of a pair of vertical lattices are constructed into a cylinder, and a caster support is slidably inserted into the cylinder, and the caster support is fixed at a predetermined position with bolts, or in actual use. In Japanese Patent No. 57-204395, it is known that elongated holes are provided in the caster attachment portions at the lower ends of a pair of vertical lattices, and the caster supports are adjustable and fixed with bolts.

Problems that the invention aims to solve: In the conventional system, the installation height of the door roller was adjusted by moving the caster support up and down along the vertical grid, so it was difficult to adjust the door roller to a higher position. This has the disadvantage that stability deteriorates over time.

Means for Solving Problems The present invention was devised in order to eliminate the drawbacks of the conventional method, and the lower part of the caster mounting legs extending from a pair of caster supports is attached to the caster mounting member of the gate. The legs are arranged and installed so that they diverge toward each other in a plane perpendicular to the direction of expansion and contraction, and the mounting height of the door roller is adjusted by moving the caster mounting legs diagonally up and down. As the mounting height of the door increases, the distance between the door rollers increases, increasing stability.

Embodiment An embodiment of the present invention will be described with reference to the drawings. In order to facilitate the opening and closing of the gate, the door rollers of the telescopic gate are usually attached to the lower ends of the butting vertical beam 1 and the intermediate vertical beam 1a, as shown in FIG. 7. The present invention relates to a mechanism for attaching the door roller, and has a structure shown in FIGS. 1 to 6.

First, the first embodiment of the present invention shown in FIGS. 1 and 2 will be described. A caster support 3 to which a caster 2 is attached at the bottom is provided with a caster mounting leg 4 that stands diagonally upward. As shown in the exploded view of Fig. 2, this caster mounting leg is bifurcated so that it can be attached from both sides of the caster mounting member 6, which is attached to the lower end of the vertical bar of the telescopic gate. A long hole 5 for bolt insertion is provided in the longitudinal direction.
The caster mounting member 6 has an E-shape as shown in Fig. 2, and both ends are fastened with screws 11 to the lower ends of a pair of front and rear vertical bars, and the center part serves as a caster mounting base 7 for mounting. A bolt insertion hole is provided. In addition, on both sides of the caster mounting member, a caster mounting member is provided so that the mounting angle of the caster mounting legs 4, 4 will not change when the pair of caster mounting legs 4, 4 are mounted so as to intersect in an X-shape. Guide grooves 8 and 9 are provided, one shallow and the other deep, so that the side surface of the mounting leg portion 4 does not protrude beyond the side surface of the caster mounting member 6.

To install the caster, first fit the caster mounting leg 4 that stands up in one diagonal direction into the deeper guide grooves 8 provided on both sides of the caster mounting member 6, and then stand it up in the other diagonal direction. The caster mounting legs 4 are fitted into shallower guide grooves 9 provided on both sides of the caster mounting member 6, so that the caster mounting legs 4 intersect in an X-shape.
Then, a mounting bolt 10 is inserted into the long hole 5 of the intersecting portion of both caster mounting legs 4 and the insertion hole of the mounting base 7, and the caster is mounted by tightening it with a nut on the back surface of the caster mounting base 7.
The mounting height of the door roller is adjusted by loosening the nut of the mounting bolt 10 and moving the caster mounting leg 4 diagonally up and down.
Since the lower part of is arranged in a shape that spreads out,
The distance between the door rollers increases as the caster mounting leg portion 4 is moved downward. Therefore, as the mounting height of the door rollers increases, the distance between the door rollers also increases, and the stability of the telescopic gate increases.

The one shown in FIG. 3 is a second embodiment of the present invention, in which the caster mounting leg 4a is different from the first embodiment in which the caster mounting leg 4a
is composed of one plate, and the caster mounting member 6a
An X-shaped guide groove is formed by the four mounting pieces 8a on one side of the housing, and a pair of caster mounting legs 4a are fitted into this guide groove in an X-shape, and then crossed with the mounting bolts 10a. It is designed to be installed by tightening the parts. Adjustment of the mounting height of the door roller is carried out using the elongated hole 5a provided in the caster mounting leg 4a, as in the first embodiment.

The one shown in FIG. 4 is a third embodiment of the present invention, in which the caster mounting leg 4b is composed of a pipe, the lower end of which is bent so as to be perpendicular to the ground. The upper part is provided with fasteners 12 and 1 provided on one side of the caster mounting member 6b.
3, it is configured to be arranged and attached in an eight-shape. The mounting height of the door roller is adjusted by loosening the grip 13 of the fastener and moving the caster mounting leg 4b diagonally up and down.

FIG. 5 shows a fourth embodiment of the present invention, in which a caster mounting leg portion 4c is attached to the lower surface of a caster mounting member 6c. The top of the mounting plate 15 bent into a mountain shape is fixed to the lower surface of the caster mounting member 6c, and both hem portions, which spread out in a figure eight shape, are connected to the caster mounting legs 4c made of two sheet metal sheets. It is installed by pinching and tightening with screws 14. Adjustment of the mounting height of the door roller is carried out using a long hole 5c provided in the caster mounting leg 4c.

What is shown in FIG. 6 is a fifth embodiment of the present invention, in which the caster mounting member 6 is similar to the fourth embodiment.
The caster mounting leg 4d is attached to the lower surface of d, and instead of the mountain-shaped mounting base, the prismatic mounting base 16 is directly attached to the caster mounting member 6d.
A caster mounting leg 4d configured in a hollow shape is fitted into the prismatic mounting base 16 provided in the figure eight shape on the lower surface of the caster mounting leg 4d. The height of the door roller can be adjusted by sliding the caster mounting leg 4d diagonally up and down relative to the mounting base 16 to a predetermined position. This is done by rotating the screw 17 in and out so that the tip of the screw 17 contacts the position.

Effects of the invention In this invention, a pair of caster mounting legs are attached to the caster mounting member so that the lower parts of the legs are spread apart, so that the mounting height of the door roller can be adjusted higher. As a result, the distance between the door rollers increases, increasing the stability of the telescopic gate.In addition, since the installation height of each pair of caster mounting legs can be adjusted individually, it is possible to adjust the height of each caster mounting leg on an inclined caster running surface. It also has excellent effects such as being able to always maintain the vertical beam of the telescopic gate vertically. Furthermore, the first and second embodiments of the present invention have the advantage that the mounting height of the pair of door rollers can be adjusted and fixed at one location.

[Brief explanation of the drawing]

FIG. 1 is a side view of the first embodiment of the present invention, FIG. 2 is an exploded view, FIG. 3 is a perspective view of the second embodiment of the present invention, and FIG. 4 is a third embodiment of the present invention. A perspective view of the embodiment, FIG. 5 is a perspective view of the fourth embodiment of the present invention,
FIG. 6 is a perspective view of a fifth embodiment of the present invention, and FIG. 7 is a side view of a door roller attached to a telescoping gate. 2... Caster, 3... Caster support, 4,
4a, 4b, 4c, 4d...caster mounting legs,
6, 6a, 6b, 6c, 6d...Caster mounting member, 8, 9...Guide groove, 10...Mounting bolt.

Claims (1)

[Scope of utility model registration request] Caster mounting members 6, 6a, 6b, 6 are attached to the lower ends of a pair of vertical bars 1, 1a constituting the telescopic gate.
a pair of casters 2,
2, the caster mounting members 6, 6a, 6b, 6c, 6d
, caster mounting legs 4, 4a, 4b, 4c, 4d extending upward from the pair of caster supports 3.
The lower portions of the caster mounting legs 4, 4a, 4b, 4c, and 4 are arranged so that their legs diverge toward each other in a plane perpendicular to the direction of expansion and contraction of the gate.
A door roller mechanism for a telescoping gate, characterized in that d is attached so as to be movable diagonally up and down.