JPH0428399Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field: The present invention relates to the improvement of building shutters, and particularly relates to a structure for damping and muffling the collision noise generated when the shutter is opened.

Conventional technology: Building shutters installed and used in stores such as general stores, homes, and small warehouses have a torsion spring built into the winding shaft so that they can be opened and closed by manual operation. The torsional force of this torsion spring causes the shutter to be wound up on the winding barrel. Therefore, when opening and closing the shutter, especially when the shutter is opened and the shutter is pulled up vigorously, as the shutter is wound up, When the flange attached to the lower end of the shutter, which also serves as a stopper, comes into contact with the upper stile attached to the building side, it collides with force, emitting a loud impact sound and causing a nuisance to the surrounding area. Additionally, there is a problem in that the impact often causes damage to buildings.

Purpose of the invention: The present invention solves these problems and buffers the collision between the lower sill of the shutter case and the flange at the lower end of the shutter, especially when winding up the shutter, thereby reducing impact noise and shaking. The purpose of the present invention is to propose a noise damping device that can prevent this.

Structure of the invention: In the present invention, in a building shutter, both ends are raised to an appropriate dimension along the lower surface of the frame material along the shutter entrance of the shutter case or the upper surface of the drain flange attached to the lower end of the shutter to improve elasticity. A shock absorber made of a band plate provided is attached, and a sound deadening piece made of a rubber material with a space formed in a part is fixed to each end of the shock absorber, and it comes into contact with the opposing member surface during winding. It is configured as follows.

Embodiment: Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a shutter case, which has a well-known structure and is installed on the front upper surface of an opening at a desired position of a building through side plates 2 at both longitudinal ends. Horizontal frames 3, 3 are arranged parallel to each other at appropriate intervals on the lower surface thereof, and a narrow shutter entrance/exit 4 is formed between the horizontal frames 3, 3. Reference numeral 5 denotes a shutter, which is wound by known means onto a winding drum on a winding support shaft 7 whose ends are fixedly supported by supports 6 attached to both side plates 2 of the shutter case 1. There is. 8 is a guide rail, and 9 is a drain flange attached to the lower end of the shutter 5.

One side stile 3 is provided with a buffer body 10, which is formed by bending a flat steel plate (or a steel plate cut into strips) of an appropriate thickness so that both ends 11, 11 thereof are raised above the mounting surface. , bolts are tightened at the main body 12, and both ends 11, 1 are raised above the mounting surface.
A sound deadening piece 13 formed of a rubber material at each end of 1
Attach each. This sound deadening piece 13 has an insertion hole 1 into which the end of the buffer body 10 can be inserted, for example.
3', and an adhesive is interposed in this hole 13' for adhesive fixation, and the insertion hole 1 is provided on the side opposite to the upper surface of the draining flange 9 of the shutter 5.
Hollow part 1 that communicates with 3' or is separate from the insertion hole
4 and has cushioning properties.

According to the present invention configured in this way, the opening and closing of the shutter 5 is the same as in the conventional case, but when the shutter 5 is wound up and opened, it is wound around the winding drum on the winding support shaft 7, and the shutter 5 is opened and closed. 5 rises vigorously and just before the draining flange 9 reaches the top,
Although it collides with the end sound deadening pieces 13, 13 of the shock absorber 10 attached to the side stile 3, the shock absorber 10 bends from the mounting base 12 and lifts both ends 1.
1 and 11, the impact force is absorbed by the elasticity resulting from their shape and the cushioning function of the sound deadening pieces 13, 13 that are in direct contact with each other, and at the same time, the impact noise is generated by the elastic deformation of the sound deadening pieces 13, 13 made of rubber material. As a result, even if there is a collision, all of it is absorbed and eliminated, so there is no vibration or sound caused by the collision, and it is now possible to open quietly even when handled violently.

In addition, in accordance with the spirit of the present invention, the buffer body may be attached to the drain flange side of the shutter so as to face the horizontal stile on the shutter case side. Further, as a sound deadening piece, a hole 11' is bored at both ends 11, 11 of the buffer body 10, and the base of a small rubber piece 15 with a hollow head 15' is inserted therein. ,
It may be fitted and fixed into the hole 11' (see FIG. 4).

Effects of the invention: According to the device of the invention, even when the shutter is wound up vigorously, especially when the shutter is opened, in addition to the elasticity of the shock absorber, the non-metallic material attached to the part that directly contacts the opposing surface Due to the synergistic effect of the cushioning effect of the sound-absorbing piece, the shock was absorbed and the process could be carried out quietly without any vibration or impact noise, and the device was simple and could easily be damaged. It has great practical effects.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of a building shutter equipped with the device of the present invention, Fig. 2 is an enlarged partial sectional view of the main part, Fig. 3 is a vertical sectional view of the shutter mounting part, and Fig. 4 is a sound deadening pad. It is another example figure of a single attachment part. 1...Shutter case, 3...Horizontal stile, 4...
Shutter entrance/exit, 5...Shutter, 9...Draining flange attached to the lower end of the shutter, 10...
Buffer body, 11... Both ends, 12... Base section, 1
3,15... Sound deadening piece.

Claims (1)

[Scope of utility model registration request] In building shutters, a buffer body consisting of a band plate with elasticity is installed on the bottom surface of the frame material along the shutter entrance of the shutter case or on the top surface of the draining flange attached to the bottom end of the shutter, with both ends raised to an appropriate size. A shock absorbing device for a building shutter, in which a sound deadening piece made of a rubber material and having a space formed in a part is fixed to each end of the shock absorbing body so as to come into contact with the opposing surface when the shock absorber is wound up.