JPH0225918Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a multi-axis support device for a shutter, which reliably supports each axis when the shutter is moved up and down using a plurality of axes.

In general, various efforts have been made to reduce the size of shutter cases in order to effectively utilize the space of various buildings, and as a result, in recent years, shutter hoisting devices using multiple shafts have been seen here and there. However, when multiple shafts are housed in this case and moved up and down, the chain straps installed on the multiple shafts may stretch, and forces act inward on the opposing shafts, causing them to bend or loosen during use. There was a defect that caused it to rattle.

This invention solves the above-mentioned drawbacks by pressing the support rollers of the adjustment support from the inner surface of each shaft of the multi-shaft, so that it can be used stably for a long period of time. The main configuration is that the opposing erection shafts of the adjustment support are mounted on opposing side walls of the shutter case, and
Support rollers are rotatably attached to the winding shaft and the guide shaft on both outer sides of the construction shaft. In addition, a device for preventing loosening of the chain belt is installed and fixed over the upper part of each installation shaft, and a device for preventing deflection is installed to support the lower side of the shutter. Therefore, according to this invention, each of the opposing shafts is reliably supported at a predetermined interval, the slack of the chain band is absorbed, and the slack prevention device stably supports and guides the chain band, and the shutter is It also has the effect of eliminating looseness. Further, the adjustment support shaft has the effect of stabilizing the distance between the winding shaft and the guide shaft.

Next, an embodiment of this invention will be explained with reference to a drawing.
A flat shutter case 11 is attached to the. The shutter 1 is raised and lowered into the case 11.
Bearings 16, 1 in which a winding shaft 2 and a guide shaft 3 that correspond to each other in parallel are attached to side walls 12, 12 of a case 11.
It is pivoted by 6... Said side walls 12, 12
As shown in FIG.
At the same time, support rollers 7, 7 are attached to both outer sides of the construction shafts 5, 5 by means of support frames 6, 6, which rotate in pressure contact with the winding shaft 2 and the guide shaft 3. There is. Further, to the construction shafts 5, 5, loosening prevention devices 8, 8 are fixed to the lower part of the chain bands 14, 14 by fasteners 9, 9, and several horizontal frames 10, 10 are fixed. It is framed at predetermined intervals by Next, on the winding shaft 2 and the guide shaft 3,
Endless chain bands 14, 14 at least in two places on both ends
The pulleys 13, 13 for constructing the bridge are fixed. These pulleys 13, 13 are covered with protective foil 15,
It is supported and fixed with 15. As shown in FIG. 4, the upper end of the shutter 1 is connected to the chain band 14 by a slat fixing fitting 24. Next, a shaft sprocket 17 is fixed to the end of the winding shaft 2, and the shaft sprocket 1 is fixed to the end of the winding shaft 2.
It is linked to the opening/closing machine 15 via a drive chain 18 installed at 7. Reference numeral 20 indicates the side wall 12,
12 shows a deflection prevention device for the shutter 1 provided on deflection prevention shafts 21, 21 installed on the shutter 1. Reference numeral 22 indicates the left and right guide rails of the shutter 1, and reference numeral 23 indicates a restoring spring housed inside the guide shaft 3.

This invention has the above-mentioned structure, and its usage is explained as follows: To raise and open the shutter 1, the shaft sprocket 13 is rotated through the drive chain 18 by the operation of the opening device 19. At the same time as this rotation, the winding shaft 2 also rotates in the upward direction, the chain band 14 meshing with the pulley 13 also rotates, and the guide shaft 3 located in the front also rotates in conjunction with the chain band 14. At this time, the construction shaft 5 provided on the adjustment support 4,
Support rollers 7, 7 provided on the outside of the winding shaft 2 and the guide shaft 3 are always in pressure contact with the outer peripheries of the winding shaft 2 and the guide shaft 3 to rotationally support them. Further, the shutter 1 connected to the chain belt 14 is simultaneously wound around the outer periphery of the chain belt 14 and raised. Next, to close the shutter 1, operate the opening/closing device 19 in the reverse direction.
It operates in the opposite direction to lower the shutter 1. At this time, the shutter 1 is brought into a fully closed state by its own weight and the assistance of the restoring spring 22. The loosening prevention devices 8, 8 take care of the loosening of the shutter 1 that occurs when the shutter 1 is rolled up and lowered by the above-mentioned operation, thereby solving the problem of preventing smooth rotation due to the loosening.

As described above, according to the multi-shaft support device of this invention, it is possible to securely hold the winding shaft and the guide shaft in a predetermined position to operate the shutter vertical movement accurately, and to prevent irregularities caused by deflection and loosening of the shutter. It has an excellent effect in that it prevents this and can be used for a long period of time. The adjustment support has opposing installation shafts installed and fixed on the side wall, so it is strong and strong.
On both sides of the construction shaft, rotating support rollers are mounted in pressure contact with the winding shaft and the guide shaft, so that the support rollers freely rotate and absorb the pressure from both shafts. The effect is that there is no need to worry about breakage, etc., even if excessive force is applied to the adjustment support, and since the support roller operates while supporting both shafts, the overall structure is strong, and there is no possibility of loosening or chain banding during shutter operation. This has the excellent effect of preventing the elongation of the material as much as possible. In addition, by installing and fixing the chain belt loosening prevention device across the upper part of the erection shaft, it is possible to reliably prevent inoperation caused by loosening of the chain belt, and also to smoothly slide on the chain belt to ensure stability. It has a sliding effect. Furthermore, the deflection prevention device has the effect of regularly guiding the deflected shutter.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a longitudinal side view of the entire device, Fig. 2 is a cross-sectional side view with a portion cut away, and Fig. 3 is a partially cutaway view of the adjustment support. FIG. 4 is a side view of the connecting portion between the shutter and the chain belt. 1 is a shutter, 2 is a winding shaft, 3 is a guide shaft, 4 is an adjustment support, 5 is an erection shaft, 6 is a support frame, 7 is a support roller, 8 is a loosening preventer, 11 is a shutter case,
13 is a pulley, 14 is a chain belt, 18 is a drive chain,
20 is a deflection preventer, and 22 is a guide rail.

Claims (1)

[Scope of utility model registration request] A winding shaft 2 and a guide shaft 3 are mounted below the winding shaft 2 in a horizontal position close to the winding shaft 2 in a flat shutter case 11, and chain bands 14, 14 are installed on the winding shaft 2 and the guiding shaft 3. In the shutter, the winding shaft 2 and the guide shaft 3 are connected to the side walls 12, 1 of the shutter case 11.
2 by bearings 16, 16, and the side wall 1
2 and 12 are equipped with an adjustment support 4 consisting of installation shafts 5 and 5 facing each other between the winding shaft 2 and the guide shaft 3. Support rollers 7, 7 which rotate in pressure contact with the take-up shaft 2 and the guide shaft 3 are pivotally attached by support frames 6, 6, and the end-mounted shaft 5,
On the upper part of the chain bands 14, 14, loosening prevention devices 8, 8 are installed and fixed, and below the side walls 12, 12, there are rollers that support the lower side of the shutter. A multi-shaft support device for a shutter, characterized in that deflection prevention shafts 21, 21 each having a deflection prevention device 20 attached thereto are mounted thereon.