JPH0524797Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a low-vibration bracket for a shutter that minimizes the transmission of vibrations from the bracket to the frame when the shutter curtain is opened and closed.

[Conventional technology]

In general, electric shutters have two brackets installed in the ceiling in parallel and facing each other, and a winding shaft for winding the shutter curtain is horizontally supported between the brackets via a bearing, and one side of the bracket is horizontally supported via a bearing. A sprocket is fitted on the end. Furthermore, an opening/closing machine having a sprocket fitted thereon is attached to one side of the bracket, and the sprocket of the winding shaft and the sprocket of the opening/closing machine are suspended by a chain.

The forward and reverse rotation of the opening/closing machine is transmitted to the winding shaft to wind up or unwind the shutter curtain and open/close the frontage opening.

In addition, in the case of a manual shutter, instead of the electric shutter opening/closing device, a coil spring with one end attached to the take-up shaft side and the other end attached to the fixed side is installed inside the take-up shaft, and the shutter curtain The shutter curtain was opened and closed by holding a biasing force in the opposite direction.

[Problem that the invention attempts to solve]

In the electric shutter constructed as described above, vibration is generated by the operation of the opening/closing machine, and is transmitted directly to the frame via the bracket. Furthermore, when opening and closing the shutter curtain, the shutter curtain itself sways due to the rotation of the take-up shaft, which is the same with manual shutters, and the vibrations are transmitted from the bracket to the frame. Especially in the case of a high-speed shutter, the vibration was significant.

Both of the above vibration transmission methods have the problem that the vibrations generated when the shutter curtains are opened and closed are transmitted to rooms on the upper floor of the condominium store where the shutters are installed and to adjacent rooms, reducing the comfort of living.

Furthermore, since vibrations are directly transmitted from the bracket side to the frame, there is a problem in that the vibrations cause damage to the frame.

This idea was developed in consideration of the above problems.
The object of the present invention is to provide a low vibration bracket for a shutter which reduces vibrations caused when the shutter curtain is opened or closed.

[Means for Solving the Problems] In order to solve the above-mentioned problems, this invention, in a shutter that opens and closes a frontage opening, has two brackets for supporting members such as a shaft, a frame mounting member and a member mounting member. A low-vibration type bracket is formed in one member, and a vibration isolating material is interposed between both members.

[Effect]

According to the low-vibration type bracket of this invention, each member such as the winding shaft and opening/closing machine is supported by the member mounting member of the bracket, and is integrated with the frame mounting member of the bracket via the vibration material. The vibrations that occur when the shutter curtain opens and closes are transmitted from the vibration-generating component attachment member to the vibration isolator, and this vibration isolator largely absorbs the vibration, reducing the vibration from the frame attachment member to the frame. It will be transmitted.

〔Example〕

Several examples of implementation of this invention will be described in detail based on the drawings.

FIG. 1 is a side view of a bracket showing a first embodiment of the low-vibration type bracket, and FIG. 2 is a side view of the bracket, and FIG.
It is a schematic cross-sectional view of a line.

The bracket A ₁ includes a frame mounting member 1 for fixing the bracket A ₁ to the frame B side, a member mounting member 4 for mounting the winding shaft 2 and the switch 3, and the frame mounting member 1 and the member mounting member 4. Anti-vibration rubber 5 made of a rubber elastic body installed between
It consists of

The frame mounting member 1 is formed into a quadrilateral shape when viewed from the side, and one side thereof forms a flange-shaped mounting portion 1a for attachment to the frame B, and the center of the quadrilateral is cut into a quadrilateral shape to form an air space. I'm there.
On each of the four sides of the periphery of this central part, there are frame-side mounting portions 6 that protrude outward in the orthogonal direction (rightward in FIG. 2).
is formed.

Next, the member mounting member 4 is formed into a quadrilateral shape when viewed from the side, and the peripheral edge of the mounting surface 7, which is the surface where the brackets face each other, has an opening facing toward the opposing surface (leftward in FIG. 2). The mounting groove 8 of the vibration isolating rubber 5, which is U-shaped in cross section, is formed by bending. The member mounting member 4 has its mounting surface 7 facing the air space of the frame mounting member 1, and the frame-side mounting portion 6 is fitted into the mounting groove 8.

On the other hand, the vibration isolating rubber 5 as a vibration isolating material is installed along the mounting groove 8 of the member mounting member 4, and has a longitudinal cut continuous on all four sides formed in the center of its surface. The frame-side mounting portion 6 is inserted into this cut.

The connection relationship between the body mounting member 1, the member attachment member 4, and the vibration isolating rubber 5 is as follows: two mounting grooves 8, two vibration isolating rubbers 5, and a body side bending portion 6 on each side of the mounting groove 8.
A bolt mounting hole is drilled through the hole, and is fastened with a bolt 9 and a nut 10.

The bracket A ₁ constructed as described above is fixedly attached to the frame body B with the mounting bolts 11 . By the way, the bracket attached to the opposite side (not shown) may have the same form as the configuration described above, or the area of the mounting surface 7 of the member mounting member 4 may be made small since it is not necessary to attach the switch 3.

Therefore, the bracket A ₁ is connected to the opening/closing machine 3 and the winding shaft 2 that occur when opening and closing the shutter curtain.
Since the vibration isolating rubber 5 is placed around the member mounting member 4 to which the above-mentioned member is attached, the vibration from the member mounting member 4 is largely absorbed by the vibration isolating rubber 5. The vibration becomes low and is transmitted to the frame mounting member 1 and further to the frame B.

Next, the second embodiment of the low-vibration type bracket, and the third embodiment of the low-vibration bracket.
The explanation will be based on the side view of the bracket in the figure.

The low-vibration type bracket A ₂ of the second embodiment has the structure mounting member 1 configured in the same manner as in the first embodiment, but there is a barrier at the periphery of the quadrilateral central portion, that is, inside the structure side mounting portion 6. A vibration rubber 5 is positioned, and a member mounting member 4 having a mounting portion 4a with a quadrilateral periphery protruding in an orthogonal direction is located in an air space surrounded by the vibration isolating rubber 5.

Therefore, the vibration isolating rubber 5 is located between the body-side mounting part 6 and the mounting part 4a of the member mounting member 4, and the vibration-proof rubber 5 is located between the bolt 9 and the nut 1 as in the first embodiment.
At 0, the position is properly tightened.

By configuring the low-vibration type bracket _A2 as described above, vibrations are transmitted to the body B side in a greatly reduced manner as in the first embodiment, and the vibrations are transmitted to the body B side in a manner similar to that of the first embodiment. The structure is relatively simple.

The low vibration type bracket of the third embodiment will be explained based on the side view of the bracket in FIG.

The low-vibration type bracket A ₃ forms two circular air spaces in which the winding shaft mounting member 12 and the opening/closing machine mounting member 13 can be respectively attached to the frame mounting member 1, and the circular periphery thereof A cylindrical frame-side attachment portion 6 protruding in a direction perpendicular to each other is attached to each.

Then, a ring-shaped vibration isolating rubber 5 is positioned inside each of the frame-side mounting portions 6 that serve as an air space, and the winding shaft mounting member 12 and the opening/closing portion are placed in the air space surrounded by the vibration isolating rubber 5. The machine mounting member 13 is positioned.

The winding shaft mounting member 12 and the switchgear mounting member 13 have a cylindrical winding shaft mounting member mounting portion 12a and a switchgear mounting member mounting portion 12a protruding from the respective circular peripheries in the orthogonal direction. The part 13a is attached.

The frame mounting member 1 and both member mounting members 12, 1
3 and the vibration isolating rubber 5, the connection relationship between the body side mounting part 6, the vibration isolating rubber 5, and the mounting part 12 of both mounting members is as follows.
Four bolt mounting holes are drilled through holes a and 13a, and are fastened with bolts 9 and nuts 10.

Since the bracket A ₃ constructed as described above is composed by dividing the component mounting members 12 and 13 into two parts, the vibrations generated from each member are largely absorbed by the respective vibration rubbers 5, resulting in low vibration. Natsute skeleton B
In addition, since the mounting members 12 and 13 are formed to have a minimum area, low vibrations are transmitted to the frame mounting member 1 in a dispersed manner.

The low vibration type bracket of the fourth embodiment will be explained based on the side view of the bracket in FIG.

The low-vibration type bracket _A4 is for a manual shutter, and the frame side mounting member 1 is attached to a mounting plate 1' which has a substantially right triangular shape in side view, and a continuous L-shape formed on two adjacent sides of this mounting plate 1'. Flange part 1″
The member mounting member 4 has a rectangular shape in side view, and a flange portion 4b bent at 90 degrees is formed on the upper and lower sides thereof.

Then, on the lower side flange portion 1'' of the frame mounting member 1, two vibration isolating rubbers 5 are positioned at a distance, and on the vibration isolating rubber 5, the lower side side of the member mounting member 4 is placed. The flange portion 4b is positioned, and bolts 9 are inserted into mounting holes penetrating each of the above-mentioned portions and fastened with nuts 10.

Further, a mounting hole is formed above the member mounting member 4, and a cylindrical vibration-proof rubber member is formed with through holes formed on the front and back surfaces of the member mounting member 4, sandwiching the position of the mounting hole. 5a, and the back side vibration isolating rubber (not shown) is placed in contact with a pedestal (not shown) protruding from the mounting plate 1' of the frame-side mounting member 1.

Then, a female thread is cut into the pedestal, and it is fastened with a mounting bolt 14 from the front vibration isolating rubber 5a side.

Low-vibration bracket A ₄ configured as above
Since the frame attachment member 1 and the member attachment member 4 are not on the same plane, the vibration generated from the member attachment member 4 is further reduced and transmitted to the frame attachment member 1 via the anti-vibration rubbers 5 and 5a. It turns out.

[Effect of idea]

Since this invention is constructed as described above, vibrations from the opening/closing machine and the member mounting members supporting the winding shaft, which are sources of vibration, are largely absorbed by the anti-vibration rubber and transmitted to the frame mounting members. As a result, low vibrations are transmitted to the building body.

Therefore, the vibrations generated when the shutter curtains are opened and closed are no longer transmitted to rooms on the floor or adjacent rooms as much as in the past, making it possible to maintain livability. Furthermore, since vibrations are not directly transmitted to the frame, damage to the frame will not be accelerated.

[Brief explanation of the drawing]

Figure 1 of the drawings is a side view showing a first embodiment of the low vibration type bracket, Figure 2 is a schematic sectional view taken along the line shown in Figure 1, and Figure 3 is a side view showing the second embodiment of the low vibration type bracket. 4 are side views showing the third embodiment, and FIG. 5 is a side view showing the fourth embodiment. A...Low vibration bracket, B...Structure, 1...
...Structure mounting member, 4...Component mounting member, 5...Vibration isolating rubber.

Claims (1)

[Scope of utility model registration request] In a shutter that opens and closes a frontage opening, the bracket for supporting members such as the shaft is formed into two members, a frame mounting member and a member mounting member, and is integrally constructed with a vibration isolating material interposed between both members. Low-vibration bracket for shutters.