JPH08475Y2 - Gate wheel device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel device for a gate, which is applied to an expandable gate, a sideways gate, and the like, which are provided with rollers for traveling on a road surface.

[0002]

2. Description of the Related Art In Japanese Utility Model Publication No. 63-44557, large and small mountain-shaped frames having inclined bars and vertical bars are attached by a pin shaft so as to be connected to each other to form an inclined bar of a large mountain-shaped frame. There is disclosed a gate door in which a shaft is inserted between opposing vertical bars by bending the lower end in a vertical shape, and wheels are pivotally supported at both ends of the shaft.

In Japanese Patent Publication No. 63-61469, a large and small inverted V-shaped frame having slanted crosspieces is attached by a pin shaft so as to be biased inside the lower end of the large inverted V-shaped frame to form a guide roller. A gate pivotally supported on a shaft is disclosed.

[0004]

However, the gate described in Japanese Utility Model Publication No. 63-44557 has a mountain shape to cross the center of gravity of the gate downward.
Although the gate is more stable in use than the case where the facing crosspieces are parallel, the lower end of the inclined crosspiece is bent to form a vertical mounting surface for the wheel. The number of man-hours for bending the material increased, which was not suitable for mass production.

Further, since the shaft pivotally supporting the wheel simply penetrates the crosspiece, the support in the longitudinal direction of the shaft becomes insufficient, and the running of the wheel becomes unstable due to the clearance between the shaft and the crosspiece. However, it was a cause of abnormal noise and increased operation force for opening and closing the gate.

On the other hand, since the crosspiece constituting the gate shown in Japanese Patent Publication No. 63-61469 has an inverted V-shape, the center of gravity of the gate can be located downward, but the inverted V-shape. Since the lower end of the crosspiece of the frame is inclined, the guide roller must be attached at a position deviated by a predetermined amount so as not to interfere with the crosspiece, and the positioning of the guide roller in the width direction becomes troublesome and unstable. Furthermore, the above-mentioned Jitsuko Sho 63-4
As with No. 4557, since the shaft pivotally supporting the guide roller simply penetrates the crosspiece, the shaft is not stably supported, which causes abnormal noise and increases the gate operation force.

[0007]

SUMMARY OF THE INVENTION In view of the above problems, the present invention is directed to a gate in which a crosspiece projects outward in the front and rear direction as it goes downward, and a vertical standing surface that is vertical to the road surface and the inclination of the crosspiece. A pedestal having inclined elevations at the same angle as each other at opposite positions, and a bearing portion integrally formed from the vertical elevation at the lower end to the inclined elevations is provided so that the inclined elevations correspond to the outer lower ends of the crosspieces. By fixing the rollers to the both ends of the support shaft that is fixedly inserted and is inserted into the bearing portion of the crosspiece and the pedestal, the intended problem is solved.

[0008]

According to the present invention, in the gate door that projects in the front-rear direction as the crosspiece extends downward, it is possible to process without adding a vertical portion for mounting the roller to the crosspiece. A pedestal having a vertical standing surface that is perpendicular to the road surface and an inclined standing surface that is the same as the inclination angle of the crosspiece is fixed to the
Since the bearing portion of the support shaft is integrally formed over the vertical surface and the sloped surface, the rollers can be easily mounted and the mounting intervals in the width direction of the two rows of rollers can be wide so that the support shaft It is possible to provide a smooth opening and closing of the gate, which is stably supported in the longitudinal direction, the traveling of the roller is stable, the generation of abnormal noise is prevented, and the operation force is small.

[0009]

1 to 4 show an embodiment of the gate structure of the present invention, in which 1 is a gate, 2 is a roller, 3 is a rail for guiding the gate, and the gate 1 has various forms. Although applicable, this embodiment is applied to a stretchable gate having a pantograph mechanism. And the rail 3 is the road surface 1
Two rollers 2 are laid parallel to each other and mounted in two rows below the gate 1 so as to roll on rails 3.

The gate 1 is composed of a plurality of trapezoidal frame bodies 4 made of hollow pipes made of aluminum or the like.
The length of the lower crosspiece 42 is set to be longer than 1, and the vertical crosspieces 5 and 5 facing each other are inclined so as to project outward in the front and rear direction as they go downward. On both lower sides of the vertical rails 5 and 5, the pedestal 6 made of an aluminum casting or the like having a vertical standing surface 61 and an inclined standing surface 62 for correcting the mounting angle of the roller 2 to be perpendicular to the road surface 19. 6 is fixed to the lower portions of the vertical rails 5 and 5 by screws 7 so as to correspond to the lower portions of the vertical rails 5 and 5, and the vertical lower surfaces of the pedestals 6 and 6 extend over the vertical standing surface 61 and the inclined standing surface 62. A bearing portion 63 that supports the support shaft 8 in the longitudinal direction is integrally formed. Brackets 9 for fixing both ends of the support shaft are attached to the vertical standing surfaces 61 of the bases 6 and 6 by bolts or the like.

The roller 2 includes a bush 10 and a bearing 1.
It is pivotally supported by the support shaft 8 via 1 and screw parts 81 are formed at both ends of the support shaft 8.
Of the vertical crosspiece 5 and the bearing portion 63 of the pedestal 6
Are supported by the bracket 9 at both ends thereof and fixed to the bracket 9 by nuts 12. Therefore, the support shaft 8 is the lower frame 4
1 and the vertical rail 5 and the pedestal 6 are located in the bearing portion 63, the support shaft is not exposed to the outside, which contributes to improving the appearance and preventing the support shaft from being deformed due to load input. Reference numeral 13 in the drawing is a cover made of resin or the like for covering the roller supporting portion.

The rail 3 is formed by integrally bending a plate-shaped stainless steel plate or the like, has a groove shape in cross section, and forms a groove portion 13. An inclined surface 31 is formed so that the foreign matters deposited in the groove portion 14 of the rail 3 can be easily discharged, and the engaged surface 3 is provided on the side facing the inclined surface 31.
2 is formed and is engaged with the engaging claw 151 of the engaging fitting 15 having a substantially L-shaped cross section which is fixed to the lower portion of the bracket 9 by a bolt or the like, and prevents the gate 1 from falling. A guide surface 33 that rises vertically is formed above the engaged surface 32, and the large diameter portion 2 formed outside the roller 2 is formed.
The inner side surface of the gate 1 is slidably contacted with the inner surface of the gate 1 to restrict the movement of the gate 1 in the width direction. A roller running surface 34 that is horizontally projected outward from the upper end of the guide surface 33 is formed,
The small diameter portion 22 of the roller 2 rolls.

The two gate rails 3 are connected to the connecting rod 16 by welding or the like so that the two rails are parallel to each other at appropriate positions in the longitudinal direction of the rails 3 on the bottom rear surfaces of the respective rails. Anchor bolt 1 fixed in the ground, the upper end of which is substantially flush with the road surface 19
The connecting rod 16 is fixed to the nut 7 by a nut 18, and the peripheral portion of the rail 3 is buried by cement mortar finishing.

In the present embodiment, the frame 4 is described as having a trapezoidal shape. However, any frame can be used as long as it can be projected outward in the front and rear direction as the crosspiece goes down and the center of gravity thereof can be set downward. Needless to say, crosspieces having various shapes such as a mountain shape or an inverted V shape can be adopted.

[0015]

According to the present invention, in the gate 1 in which the crosspiece 5 extends outward in the front and rear direction as it goes downward, the vertical lower end 61 of the crosspiece 5 is perpendicular to the road surface 19 and the inclined standing surface. A pedestal 6 having a surface 62 is fixed and its vertical upright surface 6
Since the bearing portion 63 of the support shaft that pivotally supports the roller 2 is integrally formed between the roller 1 and the inclined standing surface 62, the roller 2 can be easily mounted, and the roller 5 is particularly attached to the bar 5 of the frame body 4. The vertical part of the frame 4 can be bent without adding bending to the frame 4.
In addition, the two rows of rollers 2 have a large mounting interval in the width direction and the supporting shaft 8 is stably supported by the cylindrical bearing portion 63, so that the traveling of the rollers 2 is stable,
Practical effects are remarkable, such as preventing abnormal noise and smoothly opening and closing the gate with less operating force.

[Brief description of drawings]

[Fig. 1] Enlarged view of a notched main part of the gate structure of the present invention

FIG. 2 is an exploded perspective view of the main part of the gate structure of the present invention.

FIG. 3 is a front view showing a usage state of the gate structure of the present invention.

FIG. 4 is a side view showing a usage state of the gate structure of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gate 2 Roller 5 Vertical bar 6 Pedestal 61 Vertical standing surface 62 Inclined standing surface 63 Bearing section 8 Support shaft

Claims (1)

[Scope of utility model registration request] 1. A gate, which extends outward in the front-rear direction as the crosspiece extends downward, has a vertical vertical surface that is vertical to the road surface and an inclined vertical surface that is the same in inclination angle as the crosspiece. A pedestal integrally formed with a bearing portion from the vertical upright surface to the inclined upright surface at the lower end thereof is fixed to the outer lower end of the crosspiece so that the inclined upright surface corresponds and inserted into the crosspiece and the bearing portion of the pedestal. A wheel device for a gate, characterized in that rollers are attached to both ends of the support shaft.