JPH0538277U - Bearing structure for guide rollers in shutter doors - Google Patents

Abstract

(57) [Abstract] [Purpose] To eliminate the complexity of the structure of the bearing block that supports the guide roller of the shutter door, and to eliminate the noise problem between the roller shaft and the bearing. Is an issue. [Structure] In a shutter door composed of wide panels vertically connected, a guide roller for the uppermost panel among the guide rollers-1 attached to both side ends of each panel.
And each bearing block 3 of the guide roller for the lowermost panel is made of an aluminum extrusion mold material, a tube 5 made of synthetic resin with a flange 6 is fitted on the guide roller shaft 4, and this is fitted to the bearing block 3
Was inserted into the insertion hole 3a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a shutter-door structure mounted mainly in a rear opening of a van type vehicle or the like. In detail, in order to smoothly open and close the wide panels of the shutter door, which are joined together by multiple open and closed joints, along the guide rails, the guide rollers attached to both side edges of each panel. Among them, the present invention relates to an improvement in the bearing structure for the uppermost guide roller and the lowermost guide roller.

[0002]

[Prior Art]

 FIG. 7 shows a shutter door used in a conventional van type vehicle or the like, a so-called over-slide shutter door. This is a wide and rectangular panel a made of extruded material such as aluminum, and a small-diameter partially cut-out cylindrical portion b is integrally formed on the upper edge of each, and a large-diameter is formed on the lower edge of the panel a. A partially notched cylindrical portion c is also integrally formed, and the small-diameter cylindrical portion b is fitted in the large-diameter cylindrical portion c, and the vertically adjacent panels a and a are rotatable at this portion. To form a shutter door.

Roller shafts f of a guide roller e are inserted and fixed to bearing blocks d fixed to the vicinity of a small-diameter cylindrical portion b at both ends of the rotatable coupling portion. The guide roller e is a vertical rail g (Fig. 7) extending vertically along the corner posts on both sides of the opening of the carrying container, and further, a bent rail portion h near the ceiling portion and a lower portion of the ceiling. It is designed to be opened and closed vertically by being guided in a guide rail composed of a horizontal rail portion i extended to a predetermined length.

Now, description will be made with reference to FIGS. 8A and 8B and FIGS. 9A and 9B. FIG. 8 shows the uppermost bearing structure, and FIG. 9 shows the lowermost bearing structure. As shown in the figure, in the conventional bearing structure, the uppermost end bearing structure is composed of a base j, a pair of brackets k, k rising from both ends of the base j, and a pipe body 1 passed between the brackets. It was a welded part of the following processed parts. Further, as shown in FIG. 9, the bearing structure at the lowermost end supports the roller shaft f by a spacing piece m for adjusting the height position of the roller shaft f and a hook-like metal fitting n having a grip portion. It was fixed, and its installation was quite troublesome.

As described above, both the uppermost end bearing and the lowermost end bearing require a relatively large number of man-hours for processing, and are expensive. Further, since the uppermost and lowermost bearing structures and the guide rollers and the bearings attached to the intermediate panel are in contact with each other when the shutter door is opened and closed, the shutter door is opened and closed. There was a considerable amount of noise.

[0006]

[Problems to be solved by the device]

 In view of the above problems, it is an object of the present invention to solve the problem of the conventional structure, that is, the complexity of the structure, and to eliminate the noise problem between the roller and the bearing.

[0007]

[Means for Solving the Problems]

 In a shutter door consisting of wide panels connected vertically, among the guide rollers attached to both ends of each panel, the guide roller for the uppermost panel and the guide roller for the lowermost panel. Each bearing block of the roller was made of an aluminum extruded material, a synthetic resin tube 5 with a flange 6 was fitted on the guide roller shaft 4, and this was fitted into the insertion hole of the bearing block 3. In addition, the bearing block for the top panel was made taller than the bearing block for the bottom panel.

[0008]

【Example】

 Description will be made with reference to FIGS. FIG. 1 shows the bearing structure of the uppermost panel and guide roller 1 of the present invention. 2 is the uppermost panel, 3 is the bearing block of the roller shaft 4, which is made of aluminum extrusion. The bearing block 3 is fixed to the panel 2 with bolts 3b or the like. Reference numeral 5 is a tube made of synthetic resin covered with a roller shaft, and 6 is a flange integral with the tube, which is interposed between the side surface of the guide roller 1 and the bearing block 3 to prevent generation of noise. To prevent.

The synthetic resin is a semi-rigid synthetic resin such as nylon, polyethylene, synthetic vinyl chloride, etc., which withstands rotational pressure and has a lubricating effect against friction and reduces noise generation.

FIG. 2 shows the lowermost panel 7 and the bearing block 3 ′ of the guide roller 1. This bearing block is also made of extruded aluminum. The roller shaft 4 is fitted with a synthetic resin tube 5 as in the uppermost stage, and a flange 6 is provided at the end of the tube 5. 8 is a gasket provided at the bottom of the panel 7 to prevent impact when the door is closed. It is made of semi-rigid synthetic resin that combines flexibility to maintain watertightness, strength against impact and cushioning.

FIG. 3 shows an example of a bearing for a guide roller attached to the intermediate panel, which is configured to be fitted and attached to a T-shaped projection 2a provided on the intermediate panel. A tube 5 made of synthetic resin is fitted to the roller shaft 4 as in the bearing for the lowermost panel.

FIGS. 5A to 5H show examples of bearing blocks mounted on the uppermost panel, and FIGS. 6A to 6F show examples of bearing blocks mounted on the lowermost panel.

The insertion hole 3a of the bearing block 3 mounted on the uppermost panel has a height H from its mounting surface higher than the height H'of the insertion hole of the bearing block 3'mounted on the lowermost panel. This is to keep the uppermost panel substantially vertical to the curved rail h.

[0014]

【effect】

 Since the tube 5 with the flange is fitted in the bearing block 3, noise is generated due to friction between the roller shaft 4 and the bearing bracket, and wear and abrasion due to metal contact between the guide roller 1 and the bearing bracket. The collision noise can be reduced at the same time.

[Brief description of drawings]

1 is a top panel according to the present invention and a guide roller bearing portion attached to the top panel.

FIG. 2 is a lowermost panel and a guide roller bearing portion attached to the lowermost panel.

FIG. 3 is an intermediate part panel and a guide roller bearing part attached thereto.

FIG. 4 is a guide roller and a synthetic resin tube.

FIG. 5 shows various examples of the uppermost bearing block.

FIG. 6 shows various examples of the lowermost bearing block.

FIG. 7 is a side sectional view of a conventional roll-up door.

FIG. 8 is a detailed view of part A of FIG.

9 is a detailed view of a portion B in FIG.

[Explanation of symbols]

 1 Guide Roller 2 Top Panel 3 Bearing Block 4 Roller Shaft 5 Synthetic Resin Tube 6 Flange 7 Bottom Panel 8 Gasket

Claims (2)

[Scope of utility model registration request] 1. In a shutter door composed of wide panels vertically connected, a guide roller for the uppermost panel and a guide roller among the guide rollers attached to both side ends of each panel. Each bearing block of the guide roller for the lower end panel is made of extruded aluminum material, and a synthetic resin tube (5) with a flange (6) is fitted on the guide roller shaft (4), and this is used as the bearing. A bearing structure for a guide roller in a shutter door, which is inserted into an insertion hole (3a) of a block (3). 2. The bearing structure for a guide roller in a shutter door according to claim 1, wherein the bearing block for the uppermost panel is formed to be taller than the bearing block for the lowermost panel.