JP3650838B2 - Blind winder for automobile - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile blind winder used for window blinds and luggage compartment covers (tonneau covers) of automobiles such as wagon cars and one-box cars.
[0002]
[Prior art]
As a conventional automobile blind winder, a cylindrical body around which a blind sheet is wound is rotatably supported on a pair of left and right coaxial shafts, and the end of a coiled torsion spring incorporated in the cylindrical body is A structure that is connected to a cylindrical body and the coaxial shaft so as to apply a sheet unwinding force to the cylindrical body is widely known.
[0003]
FIG. 4 shows such a conventional automobile blind winder. In FIG. 4, reference numeral 21 denotes a corrugate for accommodating a cylindrical body 22 around which a blind sheet is wound, and a coiled torsion spring ( (Not shown) is provided, and one end thereof is attached to the cylindrical body, and the other end is attached to a coaxial shaft (not shown) that rotatably supports the cylindrical body.
[0004]
Further, both ends of the corrugate 21 are supported by cylindrical rod guides 23 and 24 covering the outer periphery thereof. Further, these rod guides 23 and 24 are accommodated in cylindrical caps 25 and 26, respectively, so as to be slidable in the axial direction.
[0005]
Each of the caps 25 and 26 is provided with guide long holes 27 and 28 having a predetermined length in the axial direction, and the tapping screws 29 and 30 are inserted into the rod guides 23 and 24 and the corrugated through the guide long holes 27 and 28. 21 is screwed into the outer periphery of both ends.
[0006]
Between the caps 25 and 26 and the rod guides 23 and 24, slide springs 31 and 32 for biasing the caps 25 and 26 outward in the axial direction are interposed, respectively. Further, 33 and 34 are protrusions attached to the caps 25 and 26 and mounted in the recesses on the vehicle body side.
[0007]
In such an automobile blind winder, when it is attached to an automobile, first, the caps 25 and 26 are pressed against the repulsive force of the slide springs 31 and 32 to be placed on the rod guides 23 and 24. Slide.
[0008]
Subsequently, each of the protrusions 33 and 34 is inserted into a pair of recesses (not shown) provided in the vehicle body at intervals within the pressed stroke to release the force in the pressing direction. The corrugate 21 is simply set at a position where the window of the vehicle body is opened and closed by the blind seat.
[0009]
[Problems to be solved by the invention]
However, in such a conventional automobile blind winder, the caps 25 and 26 are attached to the rod guides 23 and 24, and the guides are guided along the slide screws 29 and 30 that are passed through the long holes 27 and 28 of the caps 25 and 26. However, there is a problem that the configuration is complicated, the number of parts used is large, and the appearance is not good.
[0010]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, facilitates mounting on the vehicle body while slidably supporting the rod guide with respect to the corrugation, improves the appearance near the rod guide portion, and makes an assembly structure. An object of the present invention is to provide an automobile blind winder that can simplify the process and can reduce the cost by reducing the number of parts.
[0011]
[Means for Solving the Problems]
A blind winder for an automobile according to the present invention includes a pair of left and right coaxial shafts that rotatably supports a cylindrical body around which a blind sheet is wound, and the cylindrical body and the coaxial body. One end of each shaft is connected to each other, a coiled torsion spring that applies a sheet unwinding force to the cylindrical body, and the other coaxial shaft fixed to the end of the one coaxial shaft in the cylindrical body. And an inner bush that is slidably fitted in the axial direction and is axially biased toward the outside of the cylindrical body by the torsion spring, and the cylindrical body is rotatable. An opening for pulling out the blind sheet is provided in the corrugated housing, and rod guides that slidably cover the outer periphery of one end or both ends of the corrugate Projecting from those attached to the respective coaxial shafts.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a blind winder for an automobile according to the present invention with its main part cut away. In FIG. 1, 1 is a corrugate having a cylindrical body 2 constituting a blind winder described later. .
[0013]
A pair of coaxial shafts 3 and 4 that rotatably support the cylindrical body 2 protrude from the left and right ends of the corrugate 1. The bottomed cylindrical rod guides 5 and 6 that slidably cover the outer periphery are fitted in the through holes 5a and 6a.
[0014]
Then, retaining rings 7 and 8 are inserted into the through ends of the coaxial shafts 3 and 4 with respect to the rod guides 5 and 6, and the retaining rings 7 and 8 and the through ends of the coaxial shafts 3 and 4 are inserted. The retaining pins 9 and 10 are inserted.
[0015]
FIG. 2 is a cross-sectional view showing a structure in which the rod guides 5 and 6 are inserted into the corrugate 1, and the corrugate 1 is indicated by a two-dot chain line.
[0016]
Moreover, the blind winding part which has the said cylindrical body 2 has comprised the structure as shown in FIG. That is, the blind winding portion A rotatably supports the cylindrical body 2 around which the blind sheet 11 is wound on a pair of left and right coaxial shafts 3 and 4, and a torsion spring 12 built in the cylindrical body 2. The end portions 12A and 12B are connected to a later-described bush 13 integral with the cylindrical body 2 and an inner bush 16 described later which is integral with the coaxial shaft 4 in the rotational direction, thereby applying a sheet unwinding force to the tubular body 2. It is comprised so that it may do.
[0017]
And this blind winding part A has fixed the bushes 13 and 14 to the both ends of the cylindrical body 2, with respect to these, the coaxial shaft 4 is hold | maintained rotatably and axially slidably, and is coaxial. The shaft 3 is rotatably held.
[0018]
Further, the inner bush 16 is provided in the cylindrical body 2 so as to be rotatable and slidable in the axial direction, and the end of one coaxial shaft 4 is fixed to the inner bush 16. Yes. The other coaxial shaft 3 is structured to engage with the inner bush 16 in the rotational direction and to be slidable in the axial direction.
[0019]
That is, the inner bush 16 is formed with a sliding hole 16A that is positioned at the axial center of the inner bush 16 so as to slidably fit the end of the coaxial shaft 3, and slits 16B that extend in the axial direction on both sides thereof. Is formed, and a slide pin 15 that slides in the slit 16B is attached to the coaxial shaft 3.
[0020]
In addition, the coiled torsion spring 12 has a holding function of holding the cylindrical body 2 in the winding direction with respect to the coaxial shafts 3 and 4, and the axial direction of the coaxial shaft 4 toward the outer end of the cylindrical body 2. It plays the function of holding the ball.
[0021]
For this reason, the coiled torsion spring 12 is housed in the cylindrical body 2 in a state compressed in the axial direction, and is fixed to the bush 13 at one end 12A and connected to the cylindrical body 2 via this. The other end 12B is fixed to the inner bush 16 and connected to the coaxial shafts 3 and 4 via this.
[0022]
And the blind winding device comprised in this way has the recessed part (not shown) which receives the outer-end part of the coaxial shafts 3 and 4 in the vehicle body side of a motor vehicle, Therefore The coiled torsion spring 12 With the coaxial shaft 3 or 4 pushed into the cylindrical body 2 against the axial repulsive force, the ends of the coaxial shafts 3 and 4 are attached to or removed from the recesses. Can do.
[0023]
The coiled torsion spring 12 not only exhibits the rewinding function of the blind sheet 11, but also can perform a holding function that catches the extension of the coaxial shafts 3 and 4 to the outside. There is no need to use it. For this reason, the number of parts is reduced, the internal structure of the cylindrical body 2 can be greatly simplified, and the cost can be reduced.
[0024]
And since the said cylindrical body 2 is accommodated in the corrugate 1 and the outer periphery of the both ends of this corrugate 1 is covered with the bottomed cylindrical rod guides 5 and 6, attachment parts of components, such as a screw and a spring, etc. The exposed part of the part itself is not generated, the appearance is improved, and the cost can be reduced by reducing the number of parts.
[0025]
【The invention's effect】
As described above, according to the present invention, an opening for pulling out a blind sheet is provided in a corrugate that rotatably accommodates a cylindrical body, and a rod guide that covers the outer periphery of both ends of the corrug is slidable. Since it is configured to be attached to each coaxial shaft that protrudes from both ends, the rod guide is slidably supported by the corrugate while being easily mounted on the vehicle body, and the appearance near the rod guide is improved. The structure and process can be simplified, and the cost can be reduced by reducing the number of parts.
[Brief description of the drawings]
FIG. 1 is a front view illustrating a blind winder for an automobile according to an embodiment of the present invention, partially cut away.
FIG. 2 is a cross-sectional view of a rod guide according to the present invention.
FIG. 3 is a cross-sectional view showing a blind winding portion in the present invention.
FIG. 4 is a front view of a conventional automobile blind winder with a part thereof cut away.
[Explanation of symbols]
1 Corrugated 2 Tubular body 3, 4 Coaxial shaft 5, 6 Rod guide 11 Blind sheet 12 Coiled torsion spring 16 Inner bush

Claims (1)

A pair of left and right coaxial shafts rotatably supporting a cylindrical body around which the blind sheet is wound, and each end of the cylindrical shaft and the coaxial shaft are respectively connected to the cylindrical body and the coaxial shaft. A coiled torsion spring that imparts a sheet unwinding force to the cylindrical body, and is fixed to the end of the one coaxial shaft in the cylindrical body, and is slidably fitted in the axial direction to the end of the other coaxial shaft And an inner bush that is axially biased toward the outside of the cylindrical body by the torsion spring, and a corrugate having an opening for rotatably accommodating the cylindrical body and pulling out the blind sheet A rod guide attached to each coaxial shaft that slidably covers one end or both ends of the corrugate and protrudes from both ends of the corrug. Blind winding device for a motor vehicle, characterized in that it includes.

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