KR200313460Y1 - A Bracket with height adjustable roller for hanger door - Google Patents

Abstract

The present invention relates to a height-adjustable roller attachment bracket for a hanger door, the guide roller in the fastening hole 132 of the bracket 130 to adjust the height of the guide roller 100 moved along the rail 160 The eccentric shaft portion 124 of the crank shaft 120 to which the 100 is attached is fitted to be fixed by the nut 140, and the fastening hole 132 of the bracket 130 and the crank shaft 120 are eccentric. In the shaft portion 124, the spline groove 134 and the spline gear 126 are formed, and the eccentric shaft portion 124 is inserted into the fastening hole at an arbitrary angle. The 124 is not flowed in the rotational direction so that the hanger door with height adjustment is not settled down, and the inclined surfaces 127 and 135 for easy insertion are respectively at the front end of the spline gear 126 and the inlet of the spline groove 134. ) Is formed.

Description

A Bracket with height adjustable roller for hanger door}

The present invention relates to a height-adjustable roller attachment bracket for a hanger door. The eccentric shaft of the crankshaft with the guide roller is fixed to the fastening hole of the bracket to adjust the height of the guide roller moving along the rail. The spline groove and the spline gear are formed in the fastening hole of the bracket and the eccentric shaft portion of the crank shaft, and when the eccentric shaft portion is inserted into the fastening hole at an arbitrary angle, the spline gear is fitted into the spline groove so that the eccentric shaft portion rotates in the rotational direction. By preventing flow, the hanger door with height adjustment is prevented from falling down.

In general, buildings such as large factories or warehouses, which are prefabricated buildings, are provided with means for entering and exiting goods and equipment, for example, a hanger door (sliding door) having no threshold so that a vehicle such as a forklift truck or a truck can be easily accessed.

The hanger door has a bracket to which a guide roller is coupled to both sides of the upper door, and the guide roller is placed on a rail installed horizontally on the upper wall of the building so that the door can be opened.

On the other hand, the guide roller provided in the bracket is attached to be able to adjust the height so that the height of the door can be installed in accordance with the opening of the building, the conventional technology for the height adjustment structure of the guide roller is disclosed in Utility Model No. 99 -Roller-mounted brackets for hanger doors, published in Japanese Patent No. 00-10721 (published on June 26, 2000) "Can be mentioned.

The former is a roller portion 10 mounted on one side of the fastening bolt, as shown in Figure 1, the adjustment bolt 20 for adjusting the '∩' type fixing portion 16 penetrated in the longitudinal direction inserted into the adjustment groove It is composed of an integrated body portion 80 formed of the upper portion and the intermediate portion 40 is formed with a control groove 35 and the lower portion 50 formed in the '￢' shape to be fixed to the hanger door, which is adjustable The height of the door can be adjusted by restricting the position of the shaft 8 of the roller part 10 while the fixing part 16 is adjusted in height along the adjusting groove 35 formed in the long hole shape by the bolt 20. It is.

In addition, the latter and the roller unit 70 mounted on one side as shown in FIG. Two adjusting plates 20 formed on one surface to fix the roller shaft 40 so that height can be adjusted up and down; A nut 10 for tightening the throttle plate; Gears formed in the horizontal direction on the outer surface of the vertical adjustment groove 60 of the body portion 50 on which the roller portion shaft 40 is mounted is configured to include (35).

In addition to the manner shown in FIGS. 1 and 2, the guide roller 10 is coupled to the fixed shaft portion 14 of the crank shaft 12 and the eccentric shaft portion 16 of the crank shaft 12 as shown in FIG. 3. ) Is inserted into the fastening hole 19 of the bracket 18 and rotated to adjust the height of the guide roller 10 by the eccentric method.

On the other hand, there are some problems in the prior art shown in Figures 1 to 3, which are listed as follows.

First, in the Utility Model No. 99-3903, the load of the door is completely applied to the fixing portion 16 and this load is applied to the adjusting bolt 20 again, so that the concentration and accumulation of the adjusting bolt 20 as well as the adjusting bolt The female thread of the bracket to which the screw 20 is screwed is structurally vulnerable, resulting in damage to the bracket, and the occurrence of the phenomenon that the adjusting bolt 20 is loosely adjusted by repeated opening and closing of the door, and the rail If the upper space is small, there was a problem that the adjustment of the adjustment bolt 20 is difficult.

In addition, Korean Utility Model Publication No. 00-10721 has added a separate control plate for adjusting the height of the guide roller, which leads to an increase in manufacturing cost due to an increase in the number of parts, thereby matching the assembly and installation of the bracket with the height of the door. There was a problem that the height adjustment of the guide roller for the easy adjustment, and if you want to adjust the height of the door again, the adjustment plate had to be completely separated from the bracket, so there was also a difficult problem of re-adjusting.

The present invention is devised to solve the above-mentioned conventional problems, the purpose of the present invention is made of a simple structure eccentric adjustment method that can maintain the height adjustment state of the guide roller without the addition of additional parts or cost To provide a hanger door bracket that can adjust the height of the guide roller by.

In order to achieve the above object, the present invention has a fixed shaft portion in which a bearing of a guide roller is axially coupled to one side at the center of the crank shaft, and the other side of the crank shaft is inserted into the fastening hole of the bracket to be fixed by a nut so that the male screw eccentric shaft portion is fixed. In the roller-mounted bracket for a hanger door formed by rotating the eccentric shaft portion to adjust the height of the roller, a spline groove is formed inside the fastening hole of the bracket, and the eccentric shaft portion is coupled to the spline groove. The spline gear is formed radially, and when the eccentric shaft part is fitted to the height of the hanger door and inserted into the fastening hole of the bracket, the spline gear is inserted into the spline groove and is prevented from rotating arbitrarily. Even if it acts on the door, Greater axis clamping state is one so do not sit undisturbed down the door hangers will not occur.

In the present invention, the length of the spline gear is formed to be equal to or shorter than the depth of the fastening hole, and an inclined surface is formed at the front end of the spline groove and the spline gear and the inlet of the spline groove so that the eccentric shaft part is connected to the fastening hole of the bracket. To facilitate insertion, the number of the spline groove and the spline gear is formed in the dozens, preferably about 30 to 60 for the fine rotation control of the eccentric shaft portion.

1 is an exploded perspective view showing an embodiment of a conventional hanger door bracket,

Figure 2 is an exploded perspective view showing another embodiment of the conventional hanger door bracket,

Figure 3 is an exploded perspective view showing another embodiment of the conventional hanger door bracket,

Figure 4 is an exploded perspective view of the height adjustable roller attached bracket for a hanger door according to the present invention,

5 is a perspective view of the combination of FIG.

6 is a front sectional view showing an installation state of the present invention,

Figure 7 is a side cross-sectional view showing an installation state of the present invention.

* Explanation of symbols for main parts of the drawings

100: guide roller 110: bearing

120: crank shaft 122: fixed shaft portion

124: eccentric shaft portion 126: spline gear

130: bracket 132: fastening hole

134: spline groove 127, 135: slope

140: nut 142: flat washer

144: spring washer 150: rail

160: door

Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

Figure 4 is an exploded perspective view of the height-adjustable roller attached bracket for a hanger door according to the present invention, Figure 5 is a combined perspective view of FIG.

As shown in FIG. 4 and FIG. 5, the present invention has a fixed shaft portion 122 in which the bearing 110 of the guide roller 100 is axially coupled to one side at the center of the crank shaft 120 and the crank shaft 120. On the other side, the male threaded eccentric shaft portion 124 is formed to be inserted into the fastening hole 132 of the bracket 130 to be fixed by the nut 140, and the guide roller 100 by turning the eccentric shaft portion 124. In the bracket to adjust the height of the, spline grooves 134 are formed in the fastening hole 132 of the bracket 130, the eccentric shaft portion 124 is a spline coupled to the spline groove 134 Gear 126 is radially formed.

The spline gear 126 has a length equal to or shorter than the depth of the fastening hole 132, that is, the thickness of the bracket 130, so as not to interfere with the fastening of the nut 140, and the spline gear ( Tapered inclined surfaces 127 and 135 are formed at the tip of 126 and the inlet of spline groove 134 for easy insertion.

In the figure, reference numeral 142 denotes a flat washer and 144 a spring washer.

The number of the spline groove 134 and the spline gear 126 is preferably formed about 30 to 60 in order to enable the height adjustment by the fine rotation control of the eccentric shaft portion 124.

6 is a front sectional view showing an installation state of the present invention, Figure 7 is a side sectional view showing an installation state of the present invention.

As shown in FIG. 6 and FIG. 7, the present invention is slidable by inserting a guide roller 100 on a rail 150 horizontally installed on an upper wall of a building, and a crank to which the guide roller 100 is rotatably attached. The eccentric shaft portion 124 of the shaft 120 is fitted into the fastening hole 132 of the bracket 130 attached to the upper portion of the door 160 is fixed with a nut 140, the inner side of the eccentric shaft portion 124 Since the formed spline gear 126 is fitted into the spline groove 134 formed in the fastening hole 132 of the bracket 130, the eccentric shaft portion 124 is vertical to the crank shaft 120 to adjust the height of the door 160. Even if it is fitted in the fastening hole 132 in a eccentric direction without being located downward, the falling phenomenon of the eccentric shaft portion 124 due to the load of the door 160 is completely restrained. Further reinforced by nuts 140 fastened to 124. Position of one guide roller 100 is made adjustable in height is so undisturbed so that it does not occur a phenomenon that the door is to sit down.

The bracket of the present invention does not cause the door 160 to sit down and touch the floor until the guide roller or the rail is worn by repeated opening and closing of the hanger door. In order to lift the spline gear 126 formed inside the eccentric shaft portion 124 in a state in which the nut 140 fastened to the eccentric shaft portion 124 is loosened from the fastening hole 132 of the bracket 130. Pull out another angle, that is, the eccentric shaft portion 124 is rotated upward from the shaft center of the crank shaft 120, and then inserted into the fastening hole 132 again, so that the guide roller 100 is located below the door. 160 is a state that can be heard more than the previous open and close operation can be made.

In addition, the present invention is a spline groove formed in the fastening hole 132 of the bracket, the spline gear 126 of the eccentric shaft portion 124 even when the nut 140 is not completely fastened when the door is initially installed or at a later height adjustment operation. If the eccentric shaft portion 124 is fastened to the fastening hole 132 of the bracket 130, the flow does not occur in the rotational direction so that the height of the door 160 is properly adjusted. By fastening the nut 140 it is possible to complete the height adjustment of the door in a quick time without mistakes.

As described above, the present invention forms a spline groove in the fastening hole formed in the bracket and a spline groove in the eccentric shaft portion of the crank shaft, so that the eccentric shaft portion of the crank shaft coupled with the guide roller by the load or vibration of the door is formed in the fastening hole of the bracket. In order to completely prevent the flow in the direction of rotation, according to the present invention, the existing structure is almost used without any additional parts, and only the spline grooves and the spline gears are formed. It can be effectively prevented, and its installation and adjustment also has an easier practical effect.

Claims (3)

The fixed shaft portion to which the bearing of the guide roller is axially coupled is formed at one side of the center of the crank shaft, and the other side of the crank shaft is inserted into the fastening hole of the bracket to form a male eccentric shaft portion to be fixed with a nut, thereby rotating the eccentric shaft portion. In the roller attachment bracket for the hanger door that can adjust the height of the A spline groove 134 is formed inside the fastening hole 132 of the bracket 130, and the spline gear 126 coupled to the spline groove 134 is radially formed in the eccentric shaft part 124. Adjustable roller attachment bracket for hanger door. The method according to claim 1, The length of the spline gear (126) is a height adjustable roller attached bracket for a hanger door, characterized in that formed in a length shorter than or equal to the depth of the fastening hole (132). The method according to claim 1, Height-adjustable roller-type bracket for a hanger door, characterized in that the inclined surface (127, 135) for easy insertion is formed at the front end of the spline gear (126) and the inlet of the spline groove (134), respectively.