JPH0133751Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an induction guide shaft device for a multi-shaft shutter, which aims to smoothly raise and lower the shutter vertically and horizontally within a storage case without shaking, and to completely prevent noise caused by raising and lowering the shutter. be.

In general single-shaft shutter winding devices, the winding shaft is installed in the center of the storage case, so the shutter that ascends the guide rail is wound onto the winding shaft at an angle from the upper end of the guide rail, so it does not come into contact with the winding shaft. The drawback is that the sound is intense and very noisy. There are also cases where a small pushcart is placed between the top of the guide rail and the bottom of the storage case to guide and guide the shutter, but in this case too, noise is generated between the pushcart and the shutter during use. At the same time, there were other drawbacks, such as the push cart being easily damaged due to the weight of the shutter.

Therefore, this invention was developed to improve upon these conventional drawbacks, and it not only makes the opening/closing operation of the shutter reliably and silently possible, but also makes the shutter storage case significantly thinner and more compact. The main structure is that the shutter storage case has a guiding shaft inside and a shutter winding barrel shaft behind it. A buffer ring made of soft synthetic resin is attached to the rotating cylinder of the guide shaft at a required interval on the outer periphery. Further, the outer circumferential edge of the guide shaft is installed vertically above the guide rail, and the shaft portions at both ends thereof are rotatably fixed to bearing brackets of the shutter storage case. Therefore, this invention has the effect of allowing the shutter to open and close silently in a stable state at all times, and the contact surface between the shutter and the guide shaft is sufficiently cushioned to allow smooth sliding, preventing noise and making the shutter quiet. It has the excellent effect of being able to perform lifting and lowering operations.

Next, an embodiment of this invention will be described in detail with reference to the drawings. Various thin and flat shutter storage cases 1 are installed on the ceiling wall surface 17 of a building doorway or window frame. This storage case 1 has guide rails 5, 5 erected opposite to each other at the end where the shutter 4 moves up and down. Further, inside the storage case 1, a guide shaft 2 for guiding the shutter 4 is installed at an upper position of the guide rails 5, 5, and a shutter winding barrel shaft 3 for winding the shutter 4 is installed at a rear position thereof. There is also a . Bearing brackets 6, 6 located on the left and right sides of the storage case 1 have shaft portions 9, 9 provided at both ends of the rotary cylinder 7 of the guide shaft 2 rotatably pivoted by bearings 16, 16. It's dressed up. On the outer periphery of the rotary cylinder 7, one or more buffer rings 8, 8, . . . having elasticity made of soft synthetic resin are attached at required intervals. Next, the shaft portions 10, 10 provided at both ends of the shutter winding barrel shaft 3 are pivotally connected to the bearing brackets 6, 6 with bearings 11, 11 interposed therebetween. A chain ring 12 is fixed to one of the shaft parts 10, and a chain 13 is endlessly engaged with the transmission gear 14 of a switch 15 consisting of a motor or the like. . code 1
8 indicates the floor surface.

This device has the above-mentioned configuration, and to explain how to use it based on an example, firstly, to open the shutter 4, the driving transmission gear is operated by operating the switch 15. 1
4, the chain 13 is rotated, and the chain ring 12 suspended therefrom is rotated. Simultaneously with this rotation, when the shutter winding shaft 3 is rotated in the pulling direction, the shutter 4 whose tip end is fixed to the winding drum shaft 3 is rotated.
rises within the guide rails 5, 5 and guides the guide shaft 2.
The winding drum shaft 3 is wound by pressure transfer onto the buffer rings 8, 8 provided on the outer periphery of the winding drum shaft 3. Further, when closing the shutter 4, the shutter 4 is lowered in the closing direction by operating the switch 15 in the opposite direction to the above. At this time, the winding strip (not shown) inside the guide shaft 2 or the winding drum shaft 3 adjusts the repulsion appropriately to assist in opening and closing, respectively.

As described above, according to the device of this invention, the height of the shutter storage case can be significantly reduced by making it thin and flat, so the floor height of the building can be configured to be low, which has an excellent effect of being extremely economical. There is. Inside the storage case, the induction guide shaft and the shutter winding shaft are installed horizontally behind it, so the indoor ceiling can be kept low, which greatly contributes to energy savings for heating and cooling. In addition, the entire load of the shutter is distributed between the guiding shaft and the winding body of the shutter, making it possible to use a shaft with a smaller diameter than before, and by appropriately selecting the shaft diameter of the winding barrel shaft. This has the effect of being able to adjust the outer diameter of the shaft. A buffer ring made of soft synthetic resin attached to the rotating cylinder of the induction guide shaft reliably absorbs the noise generated when the shutter opens and closes and goes up and down, and elastically prevents the shutter from slipping to ensure smooth operation. It has the effect of guiding and guiding the shutter. In addition, since the outer periphery of the guide shaft is installed vertically above the guide rail, the shutter will surely rise vertically when opening and closing, and there will be no sideways vibrations, so when raising and lowering the shutter This has the practical effect of reliably preventing noise.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional side view of the entire device, FIG. 2 is a cross-sectional plan view thereof, and FIG. 3 is a perspective view of the guide shaft. 1 is a shutter storage case, 2 is a guide shaft, 3 is a shutter winding barrel shaft, 4 is a shutter, 5 is a guide rail, 7 is a rotating cylinder, 8 is a buffer ring, 9 and 10 are a shaft portion, and 13 is a chain. , 15 is a switch, and 17 is a wall surface.

Claims (1)

[Scope of utility model registration request] In the shutter storage case, in the guidance and guidance shaft device of a multi-shaft shutter, which has a guidance shaft on the guide rail side and a shutter winding barrel shaft behind it, the rotary cylinder of the guidance and guide shaft is provided with a required spacing on the outer periphery. A buffer ring made of soft synthetic resin is provided, and the outer peripheral edge of the guide shaft is installed at a position vertically above the guide rail, and the shaft portions at both ends are fixed to the bearing brackets of the shutter storage case. An induction guide shaft device for a multi-shaft shutter characterized by the following.