JP3787920B2 - Shutter take-up shaft support structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a take-up fixing shaft support structure for a shutter that supports an end of the take-up fixing shaft when the take-up fixing shaft of the shutter is disposed in a shutter case.
[0002]
[Prior art]
Generally, a winding fixing shaft that rotatably supports a winding wheel for winding a shutter curtain is fixedly held at a bearing bracket fixed to a side plate surface of the shutter case, and is substantially held in the shutter case. It is designed to be installed horizontally.
[0003]
Conventionally, the structure of the bearing bracket that holds the end portion of the take-up fixing shaft and is fixed to the side plate surface of the shutter case is formed in a U-shape having an open portion upward. In order to prevent the winding fixing shaft from easily rotating and falling off easily, bolts are passed through the pair of side plates of the bearing bracket and the winding fixing shaft so as to fix each other.
[0004]
[Problems to be solved by the invention]
However, in the conventional fixing structure of the winding fixing shaft, when assembling as a shutter device, when fixing the winding fixing shaft in the shutter case, the through holes formed in the pair of side plates of the bearing bracket Bolts are formed so that the through holes drilled perpendicularly to the axial direction at the ends of the winding fixing shafts are inserted into the bearing brackets, and then inserted into the corresponding through holes. Is inserted and is fastened and fixed with a nut. That is, when the take-up fixing shaft is disposed in the shutter case, the above-mentioned troublesome work must be performed in a narrow place, and is easy. It was difficult to fix to.
[0005]
Therefore, in order to solve the above-mentioned problems, the present invention easily attaches the take-up fixing shaft to the bearing bracket when the take-up fixing shaft of the shutter is attached to the bearing bracket disposed on the side plate surface of the shutter case. An object of the present invention is to provide a shutter fixing shaft support structure for a shutter that can be attached to an end portion and can simplify a construction work.
[0006]
[Means for Solving the Problems]
Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The shutter winding fixing shaft support structure 1 of the present invention has an end portion 31 of a shutter winding fixing shaft 30 that rotatably supports a winding wheel in the middle, and is orthogonal to the axial direction of the winding fixing shaft 30. The fixing pin 2 is provided on the side plate surface 37 in the shutter case 35, and is provided with an upward opening 12. A bearing bracket 8 that is formed in a U-shape and supports the end portion 31 of the winding fixing shaft 30 and has a groove 14 into which the fixing pin 2 is fitted at the upper edge of the left and right side plates; And an engaging portion 15 that holds both ends of the fixed pin 2 to be inserted .
And the said latching | locking part 15 has the right-and-left latching piece 19 (19 ') which has the elasticity located in the left-right outer side of the said bearing bracket 8, and attaches the said fixing pin 2 to the said winding fixing shaft 30 previously. in the state, the is supported by attaching the fixed shaft 30 preparative take-relative to the bearing bracket 8, the fixing pin 2 when Ru is fitted into the groove 14, the locking piece 19 (19 ') is elastic After the insertion, the locking piece 19 (19 ′) is restored to its initial state, and the respective locking pieces 19 (19 ′) hold and hold both ends of the fixing pin 2 .
The left and right locking pieces 19 are in an elevation direction with respect to a vertical plate portion 20, a locking plate portion 21 extending horizontally to the upper edge of the vertical plate portion 20, and a leading edge of the locking plate portion 21. The winding fixing shaft is attached to and supported by the bearing bracket in a state where the fixing pin is previously attached to the winding fixing shaft. When the pin is inserted into the groove, the oblique side portion 22 can guide the both ends of the fixed pin into the groove.
Further, the locking portion 15 is made of an elastic plate-like member, and includes a horizontal plate portion 16, a fixed plate portion 17 extending vertically downward from one side edge of the horizontal plate portion 16, and a horizontal plate portion. 16 and a pair of left and right locking pieces 19 formed on the left and right sides of the other side edge of the horizontal plate portion 16, and each locking piece 19 is formed to extend vertically upward from the other side edge of the horizontal plate portion 16. A vertical plate portion 20, a locking plate portion 21 extending horizontally on the upper edge of the vertical plate portion 20, and a hypotenuse portion 22 extending in an elevation direction with respect to the leading edge of the locking plate portion 21. When the fixing plate portion 17 is fixed to the side plate surface in the shutter case, the left and right locking pieces 19 are positioned outside the left and right side plates of the bearing bracket.
[0007]
With such a configuration, when the shutter winding fixing shaft 30 is mounted in the shutter case 35, the winding fixing shaft 30 can be simply fitted into the bearing bracket 8 of the side plate surface 37 with the end 31 of the winding fixing shaft 30. The fixing pin 2 attached in advance to the end portion 31 of the 30 is fitted into the groove 14 of the bearing bracket 8, and the locking portion 15 holds the fixing pin 2 in the groove 14, so that the attachment is completed, The winding fixing shaft 30 is supported by the bearing bracket 8.
When removing the winding fixing shaft 30 from the bearing bracket 8, the fixing pin 2 is detachable from the winding fixing shaft 30, so that the fixing pin 2 is removed from the winding fixing shaft 30. Thus, the winding fixing shaft 30 can be removed from the bearing bracket 8.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view showing an embodiment of a shutter take-up shaft support structure according to the present invention.
[0009]
The take-up fixed shaft support structure 1 of the present invention is generally composed of a fixed pin 2, a bearing bracket 8, and a locking portion 15.
[0010]
As described in the prior art, the take-up fixing shaft 30 is provided with a plurality of take-up wheels that are rotatably supported by a take-up wheel for taking up a shutter curtain (not shown). A coil spring is interposed between the winding fixing shaft 30 and the winding fixing shaft 30, and the winding fixing shaft 30 is installed substantially horizontally in the shutter case 35.
[0011]
First, as shown in FIG. 2, the fixing pin 2 includes a bolt 6 having a shaft portion 4 on which the head 3 is formed and a screw portion 5, and a screw portion 5 of the bolt 6. It consists of a nut 7 to be worn.
The length of the bolt 6 is sufficiently longer than the diameter of the winding fixing shaft 30. For example, the length of the bolt 6 is approximately twice the diameter of the winding fixing shaft 30.
[0012]
The end portion 31 of the winding fixing shaft 30 is perpendicular to the axial direction of the winding fixing shaft 30 and passes through the through-hole 32 that is drilled through the diameter line. The fixing pin 2 is inserted and attached.
[0013]
The fixing pin 2 in the attached state is such that the shaft portion 4 extends to one side and the tip end side of the screw portion 5 extends to the other side with respect to the end portion 31 of the winding fixing shaft 30. A nut 7 for screwing the bolt 6 is screwed to the threaded portion 5 that is inserted into the winding fixing shaft 30 and extends.
[0014]
Next, as shown in FIG. 3, the bearing bracket 8 is formed in a substantially U-shape having an open portion 12 upward with a bottom plate 9 and a pair of left and right side plates 10 and 11, and the left and right side plates 10. , 11 are provided with a pair of fixing pieces 13 extending outward.
The distance between the inner surfaces of the side plates 10 and 11 is set to a length substantially equal to the diameter of the winding fixing shaft 30.
[0015]
Further, each side plate 10, 11 of the bearing bracket 8 is formed with a U-shape from the center portion of the upper edge to the approximate center of the plate surface, that is, provided with a groove 14 that opens upward similarly to the opening portion 12. It has been.
The widths of the grooves 14 are set to a length substantially equal to the diameter of the bolt 6 of the fixing pin 1.
[0016]
And this bearing bracket 8 is located in the approximate center of the mutually opposing inner surface 37 in the bracket 36 which is the right and left side plates which comprise the shutter case 35, and each fixing piece 13 is used by fixing means, such as a screw. Fixed.
[0017]
Next, the locking portion 15 is made of a material such as elastic plate-shaped spring steel, and as shown in FIG. 4, the horizontal plate portion 16 and one side edge of the horizontal plate portion 16 vertically downward. The base plate 18 is formed in an L-shaped cross section with the extending fixed plate portion 17, and a locking piece 19 composed of a pair of left and right is provided on the other side edge of the horizontal plate portion 16 of the base portion 18. The base portion 18 is integrally extended.
[0018]
As shown in FIG. 4, each locking piece 19 includes a vertical plate portion 20 that is formed to extend vertically upward from the other side edge of the horizontal plate portion 16, and a horizontal plate on the upper edge of the vertical plate portion 20. The locking plate portion 21 that is parallel to the extended horizontal plate portion 16, and the oblique side portion 22 that is formed to extend at a predetermined inclination angle in the elevation direction with respect to the front end edge of the locking plate portion 21. The locking plate portion 21 and the oblique side portion 22 are formed in a substantially bowl shape, and the distance between the left and right locking pieces 19 is the width of the left and right bearing brackets 8 described above. It is set and formed slightly longer.
[0019]
As shown in FIG. 6, the locking portion 15 is provided on the outer sides of the left and right side plates 10 and 11 of the bearing bracket 8 fixed to the inner side surfaces 37 facing each other in the left and right brackets 36 of the shutter case 35. The fixing plate portion 17 of the base portion 18 is fixed to the inner side surface 37 of the bracket 36 by a fixing means such as a screw so that the respective locking pieces 19 are located.
[0020]
In this fixed state, the locking plate portions 21 of the locking pieces 19 are close to the grooves 14 of the bearing bracket 8 and, as shown in FIG. 5, the side plates 10 and 11 of the bearing bracket 8 are The position is slightly lower than the upper edge, and the position of the tip of the locking plate portion 21 is set so as to be close to the edge of the groove portion 14.
[0021]
Next, a procedure for mounting the shutter fixing shaft 30 to the bearing bracket 8 by the winding fixing shaft support structure 1 having the above-described configuration will be described.
[0022]
First, the bolt 6 constituting the fixing pin 2 is inserted and penetrated into the through hole 32 formed in the end 31 of the winding fixing shaft 30.
[0023]
Next, the nut 6 is screwed onto the threaded portion 5 of the extended bolt 6, and the bolt 6 is fixed to the winding fixing shaft 30 to form the fixing pin 2. In this state, as shown in FIG. 2, the fixing pin 2 has a shaft portion 4 on the head 3 side and a screw portion 5 on the tip side substantially perpendicular to the axial direction of the winding fixing shaft 30. Extend to the same length.
[0024]
Next, the end portion 31 of the winding fixing shaft 30 to which the fixing pin 2 is attached is lowered from above the locking pieces 19 of the locking portion 15 fixed to the bracket 36 of the shutter case 35.
[0025]
When both ends of the fixing pin 2 come into contact with the oblique side portion 22 of each locking piece 19, both ends of the fixing pin 2 are guided in the direction of the groove 14 by the oblique side portion 22, and the winding fixing is further performed. When the end portion 31 of the shaft 30 is pushed down, each locking piece 19 is elastically deformed in the retracting direction, whereby both ends of the fixing pin 2 are fitted into the grooves 14 of the bearing bracket 8, and the winding fixing shaft 30. Is fitted between the side plates 10 and 11 through the opening 12 of the bearing bracket 8.
[0026]
After the insertion, each locking piece 19 returns to its initial state because it has elasticity, and each locking plate portion 21 holds and holds both ends of the fixing pin 2 from above, whereby the winding fixing The attachment of the shaft 30 to the bearing bracket 8 is completed.
The difference in the diameter of the fixing pin 2 due to the different shapes of the head 3 and the nut 7 at both ends of the fixing pin 2 held by the locking piece 19 is absorbed by deformation due to the elasticity of the locking portion 15. That is, the fixing pin 2 is securely held by the locking portion 15.
[0027]
Further, when the take-up fixing shaft 30 attached to the bearing bracket 8 is removed from the bearing bracket 8 during maintenance work or the like, the locking plate portion 21 of the locking portion 15 and the groove 14 of the bearing bracket 8 are removed. By removing the nut 7 of the holding pin 2 held and pulling out the bolt 6, the winding fixing shaft 30 is only placed on the bearing bracket 8. It is possible to take out the winding fixing shaft 30 from the bracket 36 of the shutter case 35 only by lifting the winding fixing shaft 30.
[0028]
Accordingly, in the shutter take-up shaft support structure 1 configured as described above, when the end 31 of the take-up shaft 30 is attached to the bearing bracket 8, the take-up shaft 30 is fitted into the bearing bracket 8. The fixing pin 2 that passes through the end portion 31 of the winding fixing shaft 30 in a direction perpendicular to the axial direction and is attached in advance is simply pressed so as to be fitted into the groove 14 of the bearing bracket 8. The fixing pins 2 are held by the locking pieces 19 of the locking portions 15 disposed on both sides of the bearing bracket 8, whereby the winding fixing shaft 30 is fixed to the bearing bracket 8.
[0029]
In other words, since the winding fixing shaft 30 is attached to the bearing bracket 8 only by fitting the winding fixing shaft 30 into the bearing bracket 8 from above, it is complicated in a conventional narrow place. There is no need to perform the work, the assembling work becomes easy, and the winding fixing shaft 30 can be assembled in the shutter case 35 in a short time.
[0030]
Further, since the fixing pin 2 disposed on the take-up fixing shaft 30 is fitted into the groove 14 of the bearing bracket 8, the axial retaining with respect to the bearing bracket 8 is prevented, and further, the fixing pin 2 is fixed. Since the pin 2 is held by the locking portion 15, the pin 2 does not come out of the groove 14, and the winding fixing shaft 30 is securely attached to the bearing bracket 8.
[0031]
According to the winding fixing shaft support structure 1, when the shutter device breaks down or when maintenance work is performed, the winding fixing shaft 30 is taken up when the winding fixing shaft 30 is removed from the shutter case 35. By simply removing the fixing pin 2 penetrating the shaft 30, the winding fixing shaft 30 becomes free with respect to the bearing bracket 8, and the winding fixing shaft 30 can be removed. Can be easily performed.
[0032]
In the embodiment described above, an example in which the shape of the locking portion 15 is composed of a pair of left and right locking pieces 19 and each locking piece 19 is formed by bending a plate material into a substantially bowl shape. However, the shape is not limited to this shape. For example, as shown in FIG. 7, the left and right engaging pieces 19 ′ are constituted by opposing claws, and the base end side of each claws has elasticity, and the grooves 14. The fixing pin 2 that is inserted into the groove 14 may be held, that is, the fixing pin 2 that is inserted into the groove 14 may be configured as long as the fixing pin 2 is held simultaneously with the insertion. The structure is not limited.
[0033]
In the above-described embodiment, the example in which the fixing pin 2 is configured by the bolt 6 and the nut 7 has been described. However, the present invention is not limited thereto, and may be configured by, for example, a split pin.
[0034]
【The invention's effect】
As described above, in the shutter winding fixing shaft support structure according to the present invention, the fixing pin is attached to the end of the winding fixing shaft in advance, and the mounting operation to the shutter case is performed. When attaching the part to the bearing bracket, the take-up fixing shaft is inserted into the bearing bracket, and the fixing pin previously attached to the end of the take-up fixing shaft is inserted into the groove of the bearing bracket. The both ends of the fixing pin are held by the engaging portion only by the pressing operation, whereby the winding fixing shaft is attached to the bearing bracket.
That is, the winding fixing shaft is securely attached to the bearing bracket by the fixing pin only by inserting the winding fixing shaft into the bearing bracket from above, so that the operation becomes easy. Thus, the effect that the winding fixing shaft can be assembled in the shutter case in a short time can be obtained.
[0035]
Further, according to this winding fixing shaft support structure, since the fixing pin can be freely attached to and detached from the winding fixing shaft, when the shutter device breaks down or when maintenance work is performed, it can be removed from the shutter case. When removing the take-up fixing shaft, the take-up fixing shaft becomes free with respect to the bearing bracket simply by removing the fixing pin that passes through the take-up fixing shaft. Therefore, it is possible to easily perform maintenance work and the like.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a shutter fixing shaft support structure for a shutter according to the present invention. FIG. 2 is a plan view of a winding fixing shaft in the winding fixing shaft support structure. Fig. 4 is a perspective view of the locking portion. Fig. 5 is a front view of the winding fixing shaft support structure. Fig. 6 is a plan view. Fig. 7 is a schematic perspective view of another embodiment. Explanation】
DESCRIPTION OF SYMBOLS 1 ... Winding fixed shaft support structure 2 ... Fixing pin 8 ... Bearing bracket 12 ... Opening part 14 ... Groove 15 ... Locking part 30 ... Winding fixing shaft 31 ... End part 35 ... Shutter case 36 ... Side plate (bracket)
37 ... Side plate surface (inside surface)

Claims (3)

At the end of the winding fixing shaft of the shutter that rotatably supports the winding wheel in the middle part, it is provided in a direction perpendicular to the axial direction of the winding fixing shaft, and with respect to the winding fixing shaft. A fixing pin that is detachably provided,
It is arranged on the side plate surface in the shutter case and is formed in a substantially U shape having an upward open part to support the end of the winding fixing shaft, and the groove into which the fixing pin fits is formed on the left and right side plates. A bearing bracket on the edge ;
A locking portion that holds both ends of the fixing pin inserted into the groove;
And the locking part has elastic left and right locking pieces positioned on the left and right outer sides of the bearing bracket, and the winding pin is attached to the winding fixing shaft in advance. the fixed shaft causes supported by attached to the bearing bracket, the fixed pin when Ru is fitted in the groove, the locking piece is elastically deformed, inserted after locking piece is returned to the initial state The shutter winding fixing shaft support structure , wherein each of the locking pieces presses and holds both ends of the fixing pin . The left and right locking pieces (19) include a vertical plate portion (20), a locking plate portion (21) extending horizontally on the upper edge of the vertical plate portion (20), and the locking plate portion (21 ) And an inclined side portion (22) formed to extend in an elevation direction with respect to the front end edge, and the winding fixing shaft is attached to the bearing in a state where the fixing pin is attached to the winding fixing shaft in advance. The both ends of the fixing pin are guided into the groove by a hypotenuse (22) when the fixing pin is attached to and supported by the bracket and the fixing pin is fitted into the groove. The shutter take-up shaft support structure according to claim 1. The locking portion (15) is made of a plate member having elasticity, and includes a horizontal plate portion (16) and a fixed plate portion (17) extending vertically downward from one side edge of the horizontal plate portion (16). ) And a pair of left and right locking pieces (19) formed on the left and right sides of the other side edge of the horizontal plate portion (16), each locking piece (19) being a horizontal plate portion (16) A vertical plate portion (20) extending vertically upward from the other side edge of the first plate, a locking plate portion (21) extending horizontally to the upper edge of the vertical plate portion (20), and a locking plate portion When the fixed plate portion (17) is fixed to the side plate surface in the shutter case, the left and right sides are formed. Each of the locking pieces (19) is positioned outside the left and right side plates of the bearing bracket, and the shutter winding lock according to claim 1 or 2, Shaft support structure.

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