JP5788226B2 - cap - Google Patents

Description

  The present invention relates to a cap attached to both ends of a pipe such as a winding shaft of a roll blind.

  In the roll blind, the screen is suspended and supported from a winding shaft that is rotatably supported on the mounting surface, and the amount of light can be adjusted appropriately by moving the screen up and down by rotating the winding shaft. In such a roll blind, a fabric presser is attached to the upper end of the fabric constituting the screen by sewing or the like, and the fabric presser is attached to an attachment recess provided on the outer peripheral surface of the winding shaft.

The winding shaft is formed of an aluminum shape member, and caps are attached to both ends, and the winding shaft is rotatably supported by the support bracket via the caps.
In addition, it is desirable for the roll blind to reduce leakage of external light by narrowing the distance between the edge of the screen and the window frame or the like on which the roll blind is suspended and supported. In view of this, a roll blind has been proposed in which the edge of the screen is extended to the caps at both ends of the winding shaft so that the distance between the edge of the screen and the window frame is reduced.

  Japanese Patent Application Laid-Open No. 2004-151867 discloses a fabric attachment device in which a fabric presser for attaching a screen to a winding shaft is extended to caps at both ends of the winding shaft, and the screen is wound on the winding shaft and the outer peripheral surface of the cap. Is disclosed.

  In this mounting device, a fitting piece protruding from one side of a cylindrical cap is fitted to a rib formed on the inner peripheral surface of the take-up shaft, and the cap is fitted so as not to rotate relative to the take-up shaft. Combined. And the recessed part which accommodates material | dough presser is formed in the outer peripheral surface of a cap, and the protrusion for fitting the material | dough presser is formed in the recessed part.

JP 2010-222790 A

  In the fabric attachment device disclosed in Patent Document 1, the ridge for attaching the fabric retainer to the take-up shaft is not located at the center of the attachment recess of the fabric retainer, but is formed in the recess provided in the cap. The protruding ridge is not located in the center of the concave portion.

Therefore, when the cap attached to the right end of the take-up shaft is attached to the left end of the take-up shaft, the ridges do not continue. A large finger-hanging recess is formed in the recess of the cap asymmetrically.
For this reason, the caps attached to both ends of the take-up shaft are not compatible, and the right end cap and the left end cap need to be formed as separate parts.

Therefore, the work of attaching the cap to the take-up shaft becomes complicated, and the component cost also increases.
An object of the present invention is to provide a cap that can be attached to both ends of a pipe while accommodating a fabric presser extending from the pipe.

In Claim 1, in the cap attached to the both ends of the pipe which attaches a screen to the attachment recessed part provided in the outer peripheral surface via the cloth presser, the communication recessed part which accommodates the cloth presser extended in the both ends of the said pipe The flanges are respectively formed on both sides in the circumferential direction of the communication recess, and can be attached to the left and right ends of the pipe.

According to a second aspect of the present invention, a fitting portion for fitting the dough presser is positioned in the mounting recess so as to be removed from the circumferential center of the pipe.
According to claim 3, in the mounting recess, with the overhanging portion extending from the side into the fitting portion located farther from the fitting portion.

According to a fourth aspect of the present invention, even when the cap is attached to any end of the pipe , the positions of both sides of the mounting recess and the sides of the communication recess coincide with the circumferential direction of the pipe . .
According to a fifth aspect of the present invention, the cap includes a pair of fitting pieces that are fitted in line symmetry along the inner peripheral surface of the pipe, and the fitting pieces are provided on the inner peripheral surface of the pipe. It fitted between the side of the mounting recess.

  According to the present invention, it is possible to provide a cap that can be attached to both ends of a pipe while accommodating a fabric presser extending from the pipe.

It is a perspective view which shows one Embodiment. It is a perspective view which shows the winding axis | shaft which attached the cap. It is a disassembled perspective view which shows a winding shaft, a cap, and material | dough holding | suppressing. It is an end elevation which shows the winding axis | shaft which attached the fabric retainer. It is an end view which shows the cap which attached the fabric retainer. It is an end view which shows the cap which attached the fabric retainer. It is a side view which shows a roll blind.

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In the roll blind shown in FIG. 7, support brackets 22 are attached to both ends of a frame 25 fixed to a mounting surface via a mounting bracket 21, and the winding shaft 1 is rotatably supported between the support brackets 22. Yes. A screen 23 is suspended from the winding shaft 1, and a bottom rail 24 is suspended and supported at the lower end of the screen 23.

  One end of the winding shaft 1 is supported by the support bracket 22 via an operating device, and an endless ball chain 26 is suspended from a pulley provided in the operating device. The winding shaft 1 can be rotated in the forward and reverse directions by operating the ball chain 26.

  When the ball chain 26 is operated to rotate the winding shaft 1 in the screen winding direction, the screen 23 is wound around the winding shaft 1 and the screen 23 is raised. When the winding shaft 1 is rotated in the screen rewinding direction, the screen 23 is rewound from the winding shaft 1 and the screen 23 is lowered.

  The winding shaft 1 shown in FIGS. 1 to 3 is formed of an aluminum shape, and is rotatably supported by a support bracket 22 via caps 2 attached to both ends thereof. Then, the upper end of the screen 23 is attached to the outer peripheral surface of the winding shaft 1 with a known fabric presser 3, and the screen is wound on or wound back on the winding shaft 1 based on the rotation of the winding shaft 1. Go up and down.

  On the outer peripheral surface of the winding shaft 1, a mounting recess 4 for attaching the dough presser 3 is formed. A protrusion 5 for attaching the cloth presser 3 is formed in the mounting recess 4. Then, the fabric retainer 3 with the upper end of the screen attached to the ridge 5 is fitted, and the upper end of the screen is held by the winding shaft.

  The cap 2 is formed in a cylindrical shape having the same outer diameter as that of the winding shaft 1, and a pair of caps 2 can be fitted to the winding shaft 1 along the inner peripheral surface of the winding shaft 1. The fitting piece 6 is formed in line symmetry with respect to the center of the cap 2.

  As shown in FIGS. 3 and 4, ribs 7 a and 7 b projecting toward the center of the winding shaft 1 are formed at two locations on the inner peripheral surface of the winding shaft 1. The distance between the rib 7a and one side 8a constituting the mounting recess 4 and the distance between the rib 7b and the other side 8b constituting the mounting recess 4 are the same, and the rib 7a and the side 8a The rib 7b and the side 8b are formed symmetrically with respect to the center of the winding shaft 1.

  The fitting piece 6 of the cap 2 can be fitted between the rib 7a and the side 8a and between the rib 7b and the side 8b. With such a configuration, the ribs 7 a and 7 b and the sides 8 a and 8 b are formed in line symmetry with respect to the center of the winding shaft 1.

  A communication recess 9 is formed on the outer peripheral surface of the cap 2. The circumferential length L1 (see FIG. 5) of the communication recess 9 is formed to be the same length as the length L2 (see FIG. 4) of the mounting recess 4 in the circumferential direction of the winding shaft 1. Further, the depth of the communication recess 9 is formed to be the same as the depth of the mounting recess 4. When the fitting piece 6 is fitted to the winding shaft 1, the bottom surface 12 and the side surface 13 of the communication recess 9 communicate with the bottom surface 14 and the side surface 15 of the mounting recess 4.

  On the both sides in the circumferential direction of the cap 2 of the communication recess 9, flanges 10 are respectively formed. When the cap 2 is fitted to the end of the winding shaft 1, the flange portion 10 is retracted as compared with the winding shaft 1 circumferential direction flange portion 11 formed on one side of the mounting recess 4. It is formed in a length that protrudes to a position. Further, the cloth presser 3 can be removed from the mounting recess 4 by placing a finger on the cloth presser 3 using the gap between the flange 10 on the side close to the protrusion 5 and the cloth presser 3. Therefore, the gap between the collar portion 10 and the fabric presser 3 becomes the finger hanging concave portion 17.

  The mounting recess 4 includes a first recess 4a for attaching the fabric presser 3 and a second recess 4b for attaching a winding deviation adjusting member (not shown). And the rib 16 which separates the said protrusion 5 and the 1st recessed part 4a and the 2nd recessed part 4b is not provided in the said communicating recessed part 9. FIG.

Next, the operation of the cap 2 configured as described above will be described.
FIG. 5 shows a cap 2 and a fabric retainer 3 fitted to the right end of the winding shaft 1. The fabric retainer 3 extends to the communication recess 9 of the cap 2, one end edge of the fabric retainer 3 in the circumferential direction of the winding shaft 1 is close to one collar portion 10 of the communication recess 9, and the other end edge is the other collar portion. It will be in the state of diving below 10.

  FIG. 6 shows a cap 2 and a fabric retainer 3 fitted to the left end of the winding shaft 1. The dough presser 3 extends to the communication recess 9 of the cap 2, and similarly to FIG. 5, one end edge of the dough presser 3 in the circumferential direction of the take-up shaft is close to one flange portion 10 of the communication recess 9 and the other end. The edge is in a state of diving under the other flange 10.

  For example, in order to attach the cap 2 attached to the right end side of the winding shaft 1 to the left end side, the cap 2 removed from the right end side is rotated in the left-right direction, and the fitting piece 6 is attached to the winding shaft 1. When the fitting piece 6 is fitted to the take-up shaft 1 by rotating 180 degrees in the front-rear direction toward the side, the state shown in FIG. 6 is obtained. Therefore, the cap 2 attached to the left and right ends of the winding shaft 1 can be a common component.

With the roll blind fabric mounting apparatus configured as described above, the following effects can be obtained.
(1) The cloth presser 3 can be extended to the cap 2 attached to both ends of the take-up shaft 1, and the width of the screen can be expanded to the peripheral surface of the cap 2.
(2) The cap 2 attached to both ends of the winding shaft 1 can be a common component. Therefore, the assembling work for attaching the cap 2 to the winding shaft 1 can be easily performed.
(3) By using the cap 2 attached to both ends of the winding shaft 1 as a common part, the part cost can be reduced.

You may implement the said embodiment in the following aspects.
A cap as shown in the above embodiment may be used at both ends of a cylindrical weight bar to which the lower end of the screen is attached using a cloth presser.

  DESCRIPTION OF SYMBOLS 1 ... Pipe (winding shaft), 2 ... Cap, 3 ... Material | dough presser, 4 ... Mounting recessed part, 5 ... Fitting part (projection), 9 ... Communication recessed part.

Claims (5)

In a cap attached to both ends of a cylindrical pipe that attaches a screen to the mounting recess provided on the outer peripheral surface via a fabric presser,
It is provided with a communication recess that accommodates a fabric presser extending at both ends of the pipe, and a hook portion is formed on each side in the circumferential direction of the communication recess, and can be attached to both the left and right ends of the pipe. cap.   The cap according to claim 1, wherein a fitting portion for fitting the dough presser is located in the attachment recess so as to be removed from a circumferential center of the pipe. 3. The cap according to claim 1, wherein the attachment recess includes a flange extending toward the fitting portion from a side located far from the fitting portion for fitting the fabric presser. . When the cap is attached to any end of the pipe, the positions of both sides of the mounting recess and the sides of the communication recess coincide with the circumferential direction of the pipe. The cap according to any one of claims 1 to 3.   The cap is provided with a pair of fitting pieces that are fitted in line symmetry along the inner peripheral surface of the pipe, and the fitting piece is provided on the inner peripheral surface of the pipe and on the side of the mounting recess. The cap according to any one of claims 1 to 4, wherein the cap is fitted between the sides.

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