JP2011011709A - Sunshade device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight and cost of a sunshade device installing a shade along a cabin inner wall surface.SOLUTION: In the sunshade device equipped with a screen-like shade 11 covering the cabin inner wall surface and a cylindrical winding member 20 winding the shade, the winding member 20 includes: a plurality of cylindrical members 21 arranged in a row; a cylindrical connecting member 30 connecting the cylindrical members 21 adjacent to each other; and a torsion spring 22 inserted into the cylinder of the cylindrical member 21 and the connecting member 30, and urging the winding member 20 in the winding direction of the shade.

Description

  The present invention relates to a sunshade device for a vehicle.

  A sunshade device is installed on the vehicle interior side such as an opening of a vehicle ceiling or a window for protecting light shielding and privacy. In general, a sunshade device is provided with a linear take-up shaft at the end of an installation location that is curved toward the outside of the vehicle, a curtain body is wound around the take-up shaft, and the curtain body is pulled out from the take-up shaft. It has a structure that covers window glass and the like.

  According to the structure as described above, a gap is generated between the curved installation location and the curtain body. Therefore, in order to use the vehicle interior space more effectively, the take-up shaft is curved to follow the installation location. There has been proposed a sunshade device that can arrange a curtain body and can cover an installation place without a gap (see, for example, Patent Document 1).

  In the bending roll curtain device described in Patent Document 1, a fixed shaft is formed in a curved shape, and a flexible winding tube is rotatably attached to the fixed shaft so that the winding tube is bent along the fixed shaft. It is formed in a shape. Curtain cloth is wound around the outer periphery of the fixed shaft and the winding cylinder corresponding to the winding shaft, and a winding spring is provided in the gap between the winding cylinder and the fixed shaft. A lock mechanism that locks the take-up cylinder against the take-off force is provided.

  By the way, in order to maintain the curved shape of the winding cylinder, a fixed shaft that is curved in advance is required separately from the winding cylinder. By separately providing this fixed shaft, there is a concern about an increase in cost due to an increase in weight and the number of parts compared to a configuration in which a single linear winding shaft is configured.

JP-A-10-331556

  The present invention has been completed based on the above circumstances, and provides a sunshade device that can install a shade along a wall surface of a vehicle interior and that can be reduced in weight and cost. With the goal.

  The present invention is a sunshade device comprising a curtain-shaped shade that covers a vehicle interior wall surface, and a cylindrical winding member that winds up the shade, wherein the winding member is a plurality of tubes arranged in a row. A member, a cylindrical connecting member that connects the adjacent cylindrical members, and a spring that is inserted into the cylinder of the cylindrical member and the connecting member and biases the winding member in the winding direction of the shade And having a feature.

  According to the present invention, since the winding member is configured by coupling a plurality of cylindrical members, the angle of the coupling (that is, the angle formed by the adjacent cylindrical members) is appropriately designed, so that the winding member The overall shape can be changed according to the installation location. As a result, the winding member can be suitably curved, and it is not necessary to provide a fixed shaft for bending at the center of the winding member as in the prior art, and the entire apparatus can be reduced in weight. .

  In the conventional structure, the pole-shaped fixed shaft is bent by applying an external force or is previously curved. Compared with this, in the present invention, it is not necessary to predetermine the curved shape of the winding member, and it can be applied to various vehicle interior wall surfaces. In addition, a winding member constituted by connecting a plurality of cylindrical members as in the present invention is more powerful than the conventional winding member with one curved member. Even when is added, since the stress is dispersed at the connecting portion, the durability is excellent. Further, by connecting and using a short cylindrical member, the manufacturing cost can be reduced as compared with molding a long cylindrical member.

  Conventionally, since the fixed shaft is curved and a single cylindrical member is rotatably provided on the outer periphery thereof, the material for forming the cylindrical member must be able to withstand deformation such as bending, Although the material was narrowly limited, it is not necessary to bend the cylindrical member itself by configuring the winding member with the short cylindrical member of the present invention. It becomes possible.

  It is desirable that the connecting members connect adjacent cylindrical members so that the angle of each cylindrical shaft can be changed. In this case, since the connecting member can change the cylinder axis angle of the adjacent cylindrical members, the winding member in a state where the cylindrical members are connected can be installed at an angle along the installation location.

The cylindrical member preferably rotates in synchronization with the spring located inside the cylinder of the cylindrical member.
As a result, the operation of the spring and the cylindrical member covering the outer periphery of the spring are synchronized, so that when the rotational force is applied to the spring, the rotation of each cylindrical member can also be synchronized, thereby covering the installation site. It becomes possible to wind up the shade in the state where it is wound by a plurality of connected cylindrical members.

The end of the spring located at one end of the winding member is attached to a first spring attachment member attached to the vehicle interior wall surface or interior part,
The end of the spring located at the other end of the winding member is attached to a second spring attachment member attached to the vehicle interior wall surface or interior part,
The first spring mounting member is attached to the first spring mounting member in a state where the shaft cannot rotate, and the cylindrical member located on the outer periphery of the spring is connected to the second spring mounting member so as to be capable of rotating the shaft. It is desirable that the spring and the cylindrical member are attached in a state in which the shaft can rotate.

  Thus, by fixing one end of the spring to the installation location so that the shaft cannot rotate, and fixing the other end so that the shaft can rotate, the restoring force of the spring is connected via the cylindrical member connected to the one end that can rotate the shaft. The shade that is transmitted from one end of the winding member to the other end and covers the installation location can be taken up.

  ADVANTAGE OF THE INVENTION According to this invention, the sun shade apparatus which can install a shade along a vehicle interior wall surface, and enables weight reduction and cost reduction can be provided.

1 is a perspective view of a sunshade device according to Embodiment 1. FIG. 1 is an exploded perspective view of the winding member of FIG. 2 is a side sectional view of the winding member of FIG. 2 (partial view on the left side of FIG. 2). The disassembled perspective view of the winding member which concerns on Embodiment 2. FIG. 4 is a side sectional view of the winding member of FIG. 4 (partial view on the left side of FIG. 4). 4 is a side sectional view of the winding member of FIG. 4 (partial view on the right side of FIG. 4). Side sectional view of a mounting member according to another embodiment

<Embodiment 1>
Embodiment 1 of the present invention will be described below with reference to FIGS.
A sunshade device 10 of this embodiment is attached to an opening such as a skylight of a vehicle (not shown), and includes a curtain-like shade 11 shown in FIG. 1, a winding member 20 for winding the shade 11, A frame 12 attached to the edge of the shade 11 opposite to the winding member 20 and an attachment member 50 for attaching the winding member 20 to a vehicle interior wall surface (not shown) are provided. Hereinafter, in each component member, the upper side of FIG.

  As shown in FIG. 1, the shade 11 of the sunshade device 10 is a curtain-like member having flexibility, and is made of a synthetic resin or the like. A frame 12 made of a long member having a substantially rectangular cross section is attached to the edge of the shade 11 on the drawer side. The frame 12 has an attachment hole 14 that can be engaged with a hook 13 attached to the inner wall surface of the vehicle. The winding member 20 has a structure in which a plurality of cylindrical members 21 are arranged in a line, a connecting member 30 is disposed between adjacent cylindrical members 21, and ends of the cylindrical member 21 are connected to both ends of the connecting member 30. It has become.

  As shown in FIGS. 2 and 3, the connecting member 30 includes a hollow cylindrical first connecting member 31 and a second connecting member 40 that engages ends of a torsion spring 22 described later at both ends. The torsion spring 22 is inserted into the cylindrical member 21 and the first connecting member 31 connected to the cylindrical member 21, and the second connecting member 40 engages the connecting member side end 22 </ b> A of the torsion spring 22. ing.

  As shown in FIG. 2, the first connecting member 31 includes a main body portion 34 having an outer diameter equal to that of the cylindrical member 21, and a connection portion 32 extending from both ends thereof in a substantially semispherical shape. The connection part 32 of this connection member 30 and the 2nd connection part 42 of the 2nd connection member 40 mentioned later are formed in a substantially hemispherical shape, and the play at the time of connection is eliminated. Four protrusions 33 are formed on the outer peripheral surface of the connection portion 32 at uniform angular intervals so as to extend along the axis of the connection portion 32 (approximately 90 degrees in this embodiment). A groove portion 23 that meshes with the protrusion 33 is formed inside the cylinder of the cylinder member 21 connected by the first connecting member 31.

  The second connecting member 40 has a second main body portion 41 having an outer diameter equal to that of the cylindrical member 21, extends from both ends thereof, and has a substantially semispherical second connection portion 42 and an end surface of the second connection portion 42. Each of them is composed of a cylindrical shaft portion 44 protruding outward in the axial direction. Similar to the connection portion 32 of the first connecting member 31, the second connection portion 42 has four protrusions 43, and a locking hole 45 is formed in the shaft portion 44.

  Both ends of the winding member 20 are connected to an attachment member 50 and attached to a vehicle interior wall surface or interior parts (not shown). The mounting member 50 shown in FIGS. 2 and 3 includes a vehicle interior wall surface mounting portion 51 for fixing to an installation location of a vehicle interior wall surface (not shown) with a bolt or the like, and a columnar mounting shaft protruding from the vehicle interior wall surface mounting portion 51. It is comprised from the part 52 and the attachment connection part 53 which penetrates the attachment shaft part 52 and is connected with the cylinder member 21. As shown in FIG. When the attachment connection portion 53 is inserted into the attachment shaft portion 52, the attachment member side end portion 22B of the torsion spring 22 is locked to the tip end portion of the attachment shaft portion 52 that is exposed in a form protruding from the attachment connection portion 53. An attachment locking hole 54 is formed for this purpose. Further, on the outer periphery of the attachment connecting portion 53, a ridge 55 that meshes with the groove portion 23 of the tubular member 21 is formed in the same manner as the connecting portion 32 of the first connecting member 31 or the second connecting portion 42 of the second connecting member 40 described above. The inner side is pivotally connected to the vehicle interior wall surface mounting portion 51 and thus has a hollow cylindrical shape.

The present embodiment has the above structure, and the assembly procedure will be described.
As shown in FIGS. 2 and 3, first, the cylindrical members 21 and the first connecting members 31 that connect the cylindrical members 21 are inserted alternately into the two torsion springs 22. The torsion springs 22 are assembled so that the cylindrical members 21 are arranged on both end sides. The attachment member side end portion 22B of the torsion spring 22 is engaged with the attachment engagement hole 54 of the attachment member 50 in a state in which the attachment connection portion 53 is fitted from the attachment shaft portion 52 side of the vehicle interior wall surface attachment portion 51. The coupling member side end 22A, which is the end opposite to the mounting member side end 22B, and the locking holes 45 formed on both sides of the second coupling member 40 are respectively engaged with and connected to each other, The take-up member 20 is assembled.

  One end of the shade 11 is attached to the winding member 20, and the frame 12 is attached to the end portion on the other end side of the attached shade 11 (see FIG. 1). In a state where the shade 11 is wound around the winding member 20, the mounting member 50 is fixed to a peripheral portion of the opening such as a skylight of a vehicle (not shown) serving as an installation location with a bolt or the like. At this time, the winding member 20 can change the angle of the cylinder axis of each cylindrical member 21 along the curved shape of the installation location. Therefore, the position of the mounting member 50 can be determined and mounted.

  In order to pull out the shade 11 and keep it in a state of covering the installation location, the attachment hole 14 on the frame 12 may be hooked on the hook 13 on the vehicle interior wall. Thus, the shade 11 is maintained in a state of covering the installation location against the restoring force of the torsion spring 22. In order to store the shade 11, it is only necessary to remove the attachment hole 14 from the hook 13.

The winding mechanism of the shade 11 is realized by the following mechanism.
The ends of the torsion springs 22 arranged at both ends of the winding member 20 are fixed to the attachment member 50, and only the cylindrical member 22 located on the outer periphery thereof is rotatably connected to the attachment member 50. The torsion spring 22 with both ends fixed is twisted by the second connecting member 40 that rotates together with the tubular member 21 by pulling out the shade 11, and the restoring force is stored. When the shade 11 is stored, the restoring force stored by the torsion spring 22 is activated by removing the mounting hole 14 from the hook 13 that is locked against the restoring force, and the second coupling member 40 is used. Thus, the cylinder member 21 and the connecting member 30 are interlocked. Thereby, the whole winding member 20 rotates in the winding direction, and the shade 11 is wound up.

  According to the sunshade device 10 of the present embodiment, only the torsion spring 22 is inserted into the cylindrical member 21 and the conventional fixed shaft is eliminated, thereby reducing the number of components of the sunshade device 10 and reducing the weight. Therefore, the cost can be reduced.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
The present embodiment is different from the first embodiment in the number of torsion springs 22 and the structures of the connecting member 30 and the mounting member 50 to be used. Since other configurations are the same as those in the first embodiment, the description thereof is omitted.

  In the present embodiment, the number of torsion springs 22 used is one as shown in FIG. 4, and the connecting member 30 includes only the first connecting member 31. The mounting member 50 is the same as that of the first embodiment (that is, the mounting member 50 (see FIG. 5)) at one end, and a second mounting member 60 (FIG. 6) that connects the torsion spring 22 to the other end so as to be rotatable. Reference) is used.

  The second mounting member 60 shown on the right side of FIG. 4 locks the second vehicle interior wall surface mounting portion 61 for fixing to the vehicle interior wall surface (not shown) and the mounting member side end 22B of the torsion spring 22 to rotate the shaft. It is comprised from the attachment main-body part 62 which enables this. Note that the second vehicle interior wall surface mounting portion 61 and the mounting main body portion 62 are rotatably connected.

  The mounting main body 62 has a shape such that the second connecting member 40 of the first embodiment is divided in half from the center of the second main body 41, and the configuration thereof is a cylindrical member as shown in FIGS. 21, a second attachment connecting portion 63 coupled to the second member 21, and a columnar second attachment shaft portion 64 projecting from the second attachment connecting portion 63 toward the cylindrical member 21 side. The second mounting connection portion 63 is formed with a protrusion 65 that engages with the groove portion 23 of the cylindrical member 21 on the outer periphery, and the second mounting shaft portion 64 locks the mounting member side end portion 22B of the torsion spring 22. A second attachment locking hole 66 is formed.

  As in the first embodiment, the winding member 20 is assembled in such a manner that the tubular member 21 and the first connecting member 31 are alternately inserted into the torsion spring 22 and the tubular member 21 is disposed at both ends thereof. . One end of the torsion spring 22 is locked to the attachment member 50 (see FIG. 5), and the other end is attached to the second attachment member 60 (see FIG. 6).

Next, a mechanism for housing the shade 11 will be described.
First, one torsion spring 22 is fixed at one end by a mounting member 50 so that the shaft cannot rotate, and the other end is fixed at the second mounting member 60 so that the shaft can rotate. Thereby, when the shade 11 is pulled out, only the second attachment member 60 side of the torsion spring 22 rotates and a restoring force due to torsion is generated. This restoring force is transmitted to the cylindrical member 21 connected to the second mounting member 60 and the first connecting member 31 connected to the cylindrical member 21. When the force for housing the shade 11, that is, the force against the restoring force is released, the restoring force works, and the winding member 20 rotates in the direction of winding the shade 11.

  According to such a configuration, compared to the first embodiment, the number of torsion springs 22 to be used is changed from a plurality to one, and there is no need to use the second connecting member 40. Therefore, although the mounting structure to the vehicle interior wall surface is different at both ends, the number of parts can be reduced as a whole, and the cost can be reduced. Furthermore, since the present invention can be implemented by one torsion spring 22, it is difficult to connect a plurality of torsion springs 22, and the width of the installation location (in the direction perpendicular to the winding direction of the shade 11). It can also be applied when the dimensions are small.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above-described embodiment, the connection portion 32 of the connecting member 30 has a convex shape (the protrusion 33), and the tubular member 21 can be fitted with the protrusion 33 of the connection portion 32 of the connection member 30. However, the present invention is not limited to this, and the concave and convex shapes of the connecting member 30 and the cylindrical member 21 may be reversed. That is, a groove is formed on the inner side of the end portion of the connecting member 30, both ends of the tubular member 21 have an outer diameter that can be inserted into the connecting member 30, and a convex shape that can be fitted into the inner groove of the connecting member 30 is provided. It may be.

  (2) In the said embodiment, although the flame | frame 12 is comprised by one member, it is not restricted to this, The structure which connected the several frame member with the connection member similarly to the winding member 20 may be sufficient. Thereby, the bending stress by installing the flame | frame 12 along the curved shape of an installation location can be reduced.

  (3) In the above embodiment, only the torsion spring 22 is used as the spring. However, the present invention is not limited to this, and another type of spring having a restoring force is used instead of the torsion spring 22 or a compression coil spring is partially used. It may be used.

  (4) In the above embodiment, the connecting member 30 connects the cylindrical member 21 so that the angle of the cylindrical shaft can be changed. However, the present invention is not limited to this, and when the winding member 20 is assembled, The structure may be such that the angle is determined. For example, an inclination angle is provided in an opening portion (not shown) of the groove portion 23 of the cylindrical member 21 so that the connecting member 30 is fitted at a predetermined angle, and both the cylindrical member 21 and the connecting member 30 are provided with fitting means. May be. This eliminates the need for the protruding shapes of the connecting portion 32 and the second connecting portion 42 provided on the connecting member 30 to be substantially semi-spherical to prevent rattling, and thus the connecting member 30 can be easily formed. .

  (5) In the second embodiment, one end of the torsion spring 22 arranged at the end of the winding member 20 is attached to the attachment member 50 that cannot rotate the shaft, and the other end is attached to the second attachment member 60 that can rotate the shaft. However, the present invention is not limited to this. For example, the two types of attachment members 50 and 60 may be provided with switching means for selecting whether the shaft can be rotated or not.

  Specifically, as shown in FIG. 7, the mounting member 70 includes a vehicle interior wall surface mounting portion 71 for mounting on the vehicle interior wall surface, and a mounting shaft that is rotatably attached to the vehicle interior wall surface mounting portion 71. It comprises three parts, a hollow cylindrical attachment connecting portion 73 that is rotatably attached by inserting the shaft portion of the attachment shaft portion 72 and the attachment shaft portion 72. The mounting shaft portion 72 sandwiched between the vehicle interior wall surface mounting portion 71 and the mounting connection portion 73 is a switching means (not shown) that is fixed to either the vehicle interior wall surface mounting portion 71 or the mounting connection portion 73 so as to be selectable. I have. When the attachment shaft portion 72 is fixed to the vehicle interior wall surface attachment portion 71, the torsion spring 22 attached to the attachment member 70 becomes unrotatable, and when the attachment shaft portion 72 is fixed to the attachment connection portion 73, the attachment member 70. The torsion spring 22 attached to the shaft can be rotated.

  According to the above structure, by unifying the structure of the attachment members 70 at both ends of the winding member 20, the number of parts can be reduced and erroneous assembly can be prevented. Thereby, it becomes possible to reduce costs and improve production efficiency.

  (6) In the second embodiment, the single torsion spring 22 and the connecting member 30 use only the first connecting member 31. However, the present invention is not limited to this, and a plurality of torsion springs 22 may be used. In this case, it is necessary to connect the connecting member side end portions 22A (joints of the torsion springs 22) of the torsion springs 22 positioned at the intermediate portion of the winding member 20 so as not to synchronize with the cylindrical member 21 positioned on the outer periphery thereof. There is.

DESCRIPTION OF SYMBOLS 10 ... Sunshade apparatus 11 ... Shade 20 ... Winding member 21 ... Cylindrical member 22 ... Torsion spring 30 ... Connection member 31 ... 1st connection member 40 ... 2nd connection member 50 ... Attachment member 60 ... 2nd attachment member

Claims (4)

A sunshade device comprising a curtain-like shade that covers a vehicle interior wall surface, and a cylindrical winding member that winds up the shade,
The winding member is inserted into a plurality of cylindrical members arranged in a row, a cylindrical connecting member that connects the adjacent cylindrical members, and the cylindrical member and the connecting member inside the cylinder, and the winding member And a spring for urging the shade in the winding direction of the shade.   2. The sunshade device according to claim 1, wherein the connecting member connects the adjacent cylindrical members such that an angle of each cylindrical shaft can be changed.   3. The sunshade device according to claim 1, wherein the cylindrical member rotates in synchronization with the spring located inside the cylinder of the cylindrical member. The end of the spring located at one end of the winding member is attached to a first spring attachment member attached to the vehicle interior wall surface or interior part,
The end of the spring located at the other end of the winding member is attached to a second spring attachment member attached to the vehicle interior wall surface or interior part,
The first spring mounting member is attached to the first spring mounting member in a state in which the shaft cannot be rotated, and the cylindrical member positioned on the outer periphery of the spring is connected to be rotatable in the shaft direction.
4. The sunshade device according to claim 1, wherein the spring and the cylindrical member are attached to the second spring attachment member so as to be axially rotatable.

Images