JPH10121871A - Supporting structure of fixed shaft for winding shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assemble a winding fixed shaft in an easy work in a short time by supporting the winding fixed shaft to which a fixed pin is fitted in advance by a bearing bracket, and fitting the fixed pin in a groove. SOLUTION: A fixed pin 2 is provided in an attachable/detachable manner to/from a winding fixed shaft 30 on an end part 31 of the winding fixed shaft 30 for a shutter which rotatably supports a winding wheel in a piercing manner in the direction orthogonal to the axial direction in a middle part. A bearing bracket 8 which is formed into an approximately U-shape having an upward open part 12, supports an end part 31 of the winding fixed shaft 30, and is provided with a groove 14 in which the fixed pin 2 is fitted, is arranged on a side plate 37 in a shutter case 35. The winding fixed shaft 30 is fitted to the bearing bracket 8 in a condition where the fixed pin 2 is fitted in advance. The fixed pin 2 is fitted in the groove 14, and each end of which is held by a locking part 15. Thus, the winding fixed shaft 30 can be assembled in the shutter case 35 in an easy work in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter take-up / fixed shaft support structure for supporting an end of the take-up / fixed shaft when the take-up / fixed shaft of the shutter is disposed in a shutter case. is there.

[0002]

2. Description of the Related Art Generally, a take-up fixed shaft rotatably bearing a take-up wheel for taking up a shutter curtain has its end fixed and held by a bearing bracket fixed to a side plate surface of a shutter case. It is designed to be installed substantially horizontally in the shutter case.

Conventionally, the structure of a bearing bracket which holds the end of the winding fixed shaft and is fixed to the side plate surface of the shutter case is formed in a U-shape having an upwardly open portion. A structure is adopted in which bolts are inserted through a pair of side plates of the bearing bracket and the take-up fixed shaft so that the take-up fixed shaft does not rotate easily with respect to the bracket and do not drop off easily. I was

[0004]

However, in the above-mentioned conventional structure for fixing the take-up fixed shaft, when assembling as a shutter device, when fixing the take-up fixed shaft in the shutter case, a pair of bearing brackets is used. After the through-hole formed in the side plate and the through-hole formed in the end of the winding fixed shaft at right angles to the axial direction, the shaft ends are fitted into the bearing bracket, and then correspond to each other. Bolts are inserted through each through hole and fastened and fixed with nuts.That is, when arranging this winding fixed shaft in the shutter case, the above-mentioned complicated work is performed in a narrow place. And it was difficult to fix easily.

[0005] In order to solve the above-mentioned problems, the present invention easily winds up a fixed take-up shaft of a shutter to a bearing bracket provided on a side plate surface of a shutter case. An object of the present invention is to provide a take-up fixed shaft support structure for a shutter, which enables an end portion of a fixed shaft to be attached and simplifies construction work.

[0006]

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. In the shutter take-up fixed shaft support structure 1 of the present invention, an end 31 of a shutter take-up fixed shaft 30 that rotatably supports a take-up wheel at an intermediate portion is perpendicular to the axial direction of the take-up fixed shaft 30. The fixing pin 2 is provided so as to penetrate in the direction in which
And a bearing bracket 8 having a substantially U-shape having an upwardly open portion 12 for supporting the end 31 of the winding fixed shaft 30 and having a groove 14 into which the fixing pin 2 is fitted. And a locking portion 15 for holding both ends of the fixed pin 2 fitted in the groove 14, wherein the fixed pin 2 is attached to the winding fixed shaft 30 in advance,
The winding fixed shaft 30 is attached to and supported by the bearing bracket 8, and the fixing pin 2 is
4 and at the same time as fitting into the groove 14,
5 is characterized in that both ends of the fixing pin 2 are held.

With such a configuration, when the fixed take-up shaft 30 of the shutter is mounted in the shutter case 35,
The end 31 of the take-up / fixed shaft 30 is merely inserted into the bearing bracket 8 of the side plate surface 37 by fitting the end 31 of the take-up / fixed shaft 30.
Is fixed in the groove 14 of the bearing bracket 8, and the locking portion 15 holds the fixing pin 2 in the groove 14. Are supported by the bearing bracket 8. When the winding fixed shaft 30 is detached from the bearing bracket 8, the fixing pin 2 is detachable from the winding fixed shaft 30, so that the fixing pin 2 is removed from the winding fixed shaft 30. Thus, the winding fixed shaft 30 can be removed from the bearing bracket 8.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing an embodiment of a shutter take-up fixed shaft support structure according to the present invention.

The winding fixed shaft support structure 1 according to the present invention is generally constituted by a fixing pin 2, a bearing bracket 8, and a locking portion 15.

As described in the prior art, the take-up fixed shaft 30 is provided with a plurality of rotatably supported take-up wheels for taking up a shutter curtain (not shown). Winding wheel and winding fixed shaft 3
0, a coil spring is interposed, and the winding fixed shaft 30 is installed substantially horizontally in the shutter case 35.

First, as shown in FIG. 2, the fixing pin 2 is
In the present embodiment, a bolt 6 having a shaft portion 4 on which the head portion 3 is formed and a screw portion 5 and a nut 7 screwed to the screw portion 5 of the bolt 6 are provided. The length of the bolt 6 is sufficiently longer than the diameter of the fixed take-up shaft 30, for example, about twice as long as the diameter of the fixed take-up shaft 30.

The end 31 of the fixed winding shaft 30 is inserted through a through hole 32 which is perpendicular to the axial direction of the fixed winding shaft 30 and penetrates the diameter of the fixed fixed shaft 30. The fixing pin 2 is inserted and attached.

The fixed pin 2 in the attached state
Is inserted into the take-up / fixed shaft 30 so that the shaft portion 4 extends to one end with respect to the end portion 31 of the take-up / fixed shaft 30 and the distal end side of the screw portion 5 extends to the other end. A nut 7 for preventing the bolt 6 from coming off is screwed to the extending screw portion 5.

Next, as shown in FIG. 3, the bearing bracket 8 is formed in a substantially U-shape having an opening 12 upward by a bottom plate 9 and a pair of left and right side plates 10 and 11, and the left and right bearing brackets 8 are formed. Each of the side plates 10 and 11 is provided with a pair of fixing pieces 13 extending outward. Each side plate 10, 1
The interval between the inner surfaces of the first and second inner surfaces 1 is set to a length substantially equal to the diameter of the winding fixed shaft 30.

Each side plate 1 of the bearing bracket 8
The grooves 0 and 11 are formed in a U-shape from the center of the upper edge to substantially the center of the plate surface, that is, provided with grooves 14 that open upward like the opening 12. The width of these grooves 14 is set to a length substantially equal to the diameter of the bolt 6 of the fixing pin 1.

The bearing bracket 8 is located substantially at the center of the opposed inner side surfaces 37 of the bracket 36 as the left and right side plates constituting the shutter case 35, and the fixing pieces 13 are provided with fixing means such as screws. Fixed by use.

Next, the locking portion 15 is made of an elastic plate-shaped material such as spring steel. As shown in FIG. 4, a horizontal plate portion 16 and one side edge of the horizontal plate portion 16 are provided. It has a base portion 18 formed in an L-shaped cross section with a fixed plate portion 17 extending vertically downward, and a pair of left and right locking members is provided on the other side edge of the horizontal plate portion 16 of the base portion 18. Piece 19
It extends integrally with the base 18.

As shown in FIG. 4, each locking piece 19 has a vertical plate portion 20 extending vertically upward from the other side edge of the horizontal plate portion 16, and an upper edge of the vertical plate portion 20. A locking plate portion 21 extending horizontally in parallel with the horizontal plate portion 16, and a hypotenuse portion 22 formed at a predetermined inclination angle in an elevation angle direction with respect to a leading edge of the locking plate portion 21. The locking plate portion 21 and the oblique side portion 22 are formed in a substantially hook shape, and the interval between the locking pieces 19 on the left and right sides is the same as that of the bearing bracket 8 described above. It is set to be slightly longer than the left-right width.

As shown in FIG. 6, the locking portions 15 are provided on the outer sides of the left and right side plates 10 and 11 of the bearing bracket 8 fixed to the mutually facing inner side surfaces 37 of the left and right brackets 36 of the shutter case 35. The fixing plate 17 of the base 18 is positioned so that the left and right locking pieces 19 are positioned.
Are fixed to the inner surface 37 of the bracket 36 by fixing means such as screws.

In this fixed state, the locking plate 21 of each locking piece 19 is engaged with each groove 1 of the bearing bracket 8.
4 and slightly below the upper edges of the side plates 10 and 11 of the bearing bracket 8, and the position of the tip of the locking plate 21 is close to the edge of the groove 14 as shown in FIG. It is set to be the position where

Next, the procedure for mounting the take-up / fixed shaft 30 of the shutter to the bearing bracket 8 by the take-up / fixed shaft support structure 1 having the above-described configuration will be described.

First, a bolt 6 forming the fixing pin 2 is inserted into a through hole 32 formed in the end 31 of the winding fixed shaft 30.
Insert and penetrate.

Next, the nut 6 is screwed onto the threaded portion 5 of the extended bolt 6, and the bolt 6 is fixed to the take-up fixed shaft 30 to form the fixing pin 2. In this state, the fixing pin 2
As shown in FIG. 2, the shaft 4 on the head 3 and the screw 5 on the distal end extend to approximately the same length in a direction orthogonal to the axial direction of the take-up fixed shaft 30. I do.

Next, from above each locking piece 19 of the locking portion 15 fixed to the bracket 36 of the shutter case 35, the winding fixed shaft 30 to which the fixing pin 2 is attached is mounted.
Is lowered.

When both ends of the fixing pin 2 contact the oblique sides 22 of the locking pieces 19, the oblique sides 22
When both ends of the fixing pin 2 are guided in the direction of the groove 14, and further when the end 31 of the winding fixed shaft 30 is pressed down, each locking piece 19 undergoes elastic deformation in the retreating direction. Both ends of the fixing pin 2 are in the grooves 14 of the bearing bracket 8.
The end 31 of the winding fixed shaft 30 is inserted between the side plates 10 and 11 from the open portion 12 of the bearing bracket 8.

After the fitting, each locking piece 19 has elasticity and returns to the initial state, and each locking plate 21 presses and holds both ends of the fixing pin 2 from above. Attachment of the winding fixed shaft 30 to the bearing bracket 8 is completed. The difference in the diameter of the fixing pin 2 due to the difference in the shape of the head 3 and the nut 7 at both ends of the fixing pin 2 held by the locking piece 19 is as follows.
It is absorbed by the elastic deformation of the locking portion 15, that is, the fixing pin 2 is securely held by the locking portion 15.

When the take-up fixed shaft 30 attached to the bearing bracket 8 is to be detached from the bearing bracket 8 during maintenance work or the like, the locking plate 2 of the locking portion 15 is used.
1 and the nut 7 of the fixing pin 2 held in the groove 14 of the bearing bracket 8 are removed, and the bolt 6 is pulled out, so that the take-up fixed shaft 30 is in a state of being merely mounted on the bearing bracket 8. Therefore, this bearing bracket 8
It is possible to take out the fixed winding shaft 30 from the bracket 36 of the shutter case 35 only by lifting the fixed winding shaft 30 upward.

Accordingly, in the shutter take-up fixed shaft support structure 1 configured as described above, the end 31 of the take-up fixed shaft 30
When attaching to the bearing bracket 8, the take-up and fixing shaft 30 is fitted into the bearing bracket 8, and a fixing pin which is inserted through the end 31 of the take-up and fixed shaft 30 at right angles to the axial direction and is attached in advance. 2 to the bearing bracket 8
The fixing pin 2 is held by each of the locking pieces 19 of the locking portion 15 disposed on both sides of the bearing bracket 8 only by an operation of being pressed down so as to fit into the groove 14 of the bearing. The take-up fixed shaft 30 is fixed to the bearing bracket 8.

That is, the winding and fixed shaft 30 is mounted on the bearing bracket 8 only by fitting the winding and fixed shaft 30 into the bearing bracket 8 from above. It is not necessary to perform complicated work in the above, and the assembling work is easy, and the winding fixed shaft 3 can be installed in the shutter case 35 in a short time.
0 can be assembled.

Further, since the fixing pin 2 provided on the take-up fixed shaft 30 is fitted into the groove 14 of the bearing bracket 8, it is possible to prevent the bearing bracket 8 from coming off in the axial direction. Further, since the fixing pin 2 is held by the locking portion 15, the fixing pin 2 does not fall out of the groove 14, and the winding and fixing shaft 30 is securely attached to the bearing bracket 8.

According to the take-up / fixed shaft support structure 1, when the shutter device breaks down or maintenance work is performed, the take-up / fixed shaft 30 is removed from the shutter case 35.
When performing the work of removing, the winding fixed shaft 30 becomes free with respect to the bearing bracket 8 only by pulling out the fixing pin 2 penetrating the winding fixed shaft 30, and the winding fixed shaft 30 is removed. Since it can be removed, maintenance work and the like can be easily performed.

In the above-described embodiment, the locking portion 1
5 is constituted by a pair of left and right locking pieces 19, and each locking piece 1
Although the example in which the plate material 9 is formed into a substantially hook shape by bending a plate material has been described, the present invention is not limited to this shape. For example, as shown in FIG. The claw has a structure in which the base end of each claw has elasticity,
The fixing pin 2 fitted in the groove 14 may be configured to be held, that is, the fixing pin 2 fitted in the groove 14 may be configured to hold the fixing pin 2 at the same time as the fitting. However, the present invention is not limited to the above structure.

Further, in the above-described embodiment, the example in which the fixing pin 2 is constituted by the bolt 6 and the nut 7 has been described. However, the present invention is not limited to this, and may be constituted by, for example, a split pin.

[0034]

As described above, in the shutter take-up / fixed shaft support structure according to the present invention, the work of attaching to the shutter case is performed with the fixation pin previously attached to the end of the take-up / fixed shaft. When attaching the end of the take-up / fixed shaft to the bearing bracket, the take-up / fixation shaft is fitted into the bearing bracket, and the fixing pin previously attached to the end of the take-up / fixed shaft is inserted into the groove of the bearing bracket. The two ends of the fixing pin are held by the locking portions only by the operation of being pressed down so as to fit into the shaft, so that the winding fixed shaft is attached to the bearing bracket.
In other words, only the work of fitting the take-up fixed shaft into the bearing bracket from above, and this work is easy because the take-up fixed shaft is securely attached to the bearing bracket by the fixing pin. Thus, the effect that the winding fixed shaft can be assembled in the shutter case in a short time can be obtained.

According to the winding fixed shaft support structure,
Since the fixing pin can be freely attached to and detached from the fixed take-up shaft, when the shutter device breaks down or maintenance work is performed, when the work to remove the fixed take-up shaft from the shutter case is performed, Simply pulling out the fixing pin that penetrates the take-off / fixing shaft, the take-up / fixing shaft becomes free with respect to the bearing bracket, and this take-up / fixing shaft can be removed, facilitating maintenance work. There is an effect that can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a shutter take-up fixed shaft support structure according to the present invention.

FIG. 2 is a plan view of a winding fixed shaft in the winding fixed shaft support structure.

FIG. 3 is a perspective view of the bearing bracket.

FIG. 4 is a perspective view of the locking portion.

FIG. 5 is a front view of the winding fixed shaft support structure.

FIG. 6 is a plan view of the same.

FIG. 7 is a schematic perspective view of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Winding fixed shaft support structure 2 ... Fixed pin 8 ... Bearing bracket 12 ... Opening part 14 ... Groove 15 ... Locking part 30 ... Winding fixed shaft 31 ... End part 35 ... Shutter case 36 ... Side plate (bracket) 37 ... Side plate surface (inner surface)

Claims (1)

[Claims] An end portion of a fixed take-up shaft of a shutter that rotatably supports a take-up wheel in an intermediate portion is provided so as to penetrate in a direction orthogonal to the axial direction of the fixed take-up shaft. A fixing pin detachably provided to the take-up / fixing shaft; and a substantially U-shaped member disposed on a side plate surface in the shutter case and having an upwardly open portion to support an end of the take-up / fixing shaft. A bearing bracket having a groove into which the fixing pin fits, and locking portions for holding both ends of the fixing pin to be fitted into the groove, wherein the fixing pin is previously mounted on the winding fixed shaft. In a state where the fixing pin is attached, the winding fixed shaft is attached to and supported by the bearing bracket, and the fixing pin is fitted into the groove. Characterized by holding both ends of The fixed take-up shaft support structure of the shutter.