JP2010179699A - Light shielding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To sufficiently ensure a light shield area of a screen. <P>SOLUTION: In a light shielding device 10, a second bracket 26 in which a fixed piece 64, a stopper piece 66, a support piece 68 or the like are formed is disposed on one side in the axial direction at the center of rotation of a lower arm 38 with respect to a first bracket 24 rotatably supporting the lower arm 38. Thereby, the first bracket 24 can be disposed on a further end side in the longitudinal direction of a base member 12, and the first bracket 24 is disposed at the end portion in the longitudinal direction of the base member 12. The center of rotation of the lower arm 38 is positioned further outside the light shielding device 10. Therefore, when the screen 22 is deployed, the screen 22 and the lower arm 38 are closer to a C-pillar 121. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a light shielding device.

  Conventionally, for example, the following are known as light shielding devices. In other words, Patent Document 1 discloses a longitudinal main frame, a pair of vertical frame rotation arms supported rotatably on the main frame, and the pair of vertical frame rotation arms. An electric sunshade having a sheet-like screen is disclosed.

Japanese Patent Laid-Open No. 11-62442 JP 2008-230308 A

  However, in the electric sunshade described in Patent Document 1, the vertical frame turning arm is provided at a position closer to the center than the longitudinal end of the main frame. Therefore, when the screen is unfolded, the screen, the vertical frame turning arm, and the C pillar are separated in the vehicle width direction, and the light shielding area of the screen is not sufficiently secured.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a light shielding device that can sufficiently secure a light shielding area of a screen.

  In order to solve the above-described problem, a light-shielding device according to claim 1 includes a base member formed in a longitudinal shape, a drive motor provided on the center side in the longitudinal direction of the base member, and the drive motor and the drive force. A rotation arm connected via a transmission mechanism and rotated with respect to the base member by receiving a driving force of the drive motor; connected to the rotation arm; and with rotation of the rotation arm A sheet-like screen developed from the winding mechanism, a first bracket provided at a longitudinal end of the base member and rotatably supporting the rotating arm, and the rotation with respect to the first bracket. Arranged on one side in the axial direction of the pivot center of the moving arm and fixed to the first bracket, a connecting portion to the vehicle body, a regulating portion for regulating the pivoting of the pivot arm, and the winding mechanism Few support parts to support And a, and a second bracket or is formed even Ku.

  According to the light-shielding device of the first aspect, at least one of a connecting portion to the vehicle body, a restricting portion that restricts the turning of the turning arm, and a supporting portion that supports the winding mechanism is formed. The bracket is disposed on one side in the axial direction of the rotation center of the rotation arm with respect to the first bracket that rotatably supports the rotation arm. Thus, the first bracket can be disposed on the longer end side of the base member, and the first bracket is provided on the end portion of the base member in the longitudinal direction.

  For this reason, for example, the rotation center of the rotation arm is located on the outer side of the light-shielding device as compared with the configuration in which the rotation arm is rotatably supported on the center side in the longitudinal direction of the base member with respect to the second bracket. . Therefore, when the screen is unfolded, the screen and the pivot arm can be configured to approach the vertical frame (for example, C pillar) of the window. Thereby, a sufficient light-shielding area of the screen can be ensured.

  The light-shielding device according to claim 2 is the light-shielding device according to claim 1, wherein a fixing portion for fixing the first bracket and the second bracket to each other is coaxial with a rotation center of the rotation arm. It is set as the structure provided in the shape.

  According to the light shielding device of the second aspect, the fixing portion for fixing the first bracket and the second bracket to each other is provided coaxially with the rotation center of the rotation arm. Therefore, the first bracket and the second bracket can be reduced in size.

  The light-shielding device according to claim 3 is the light-shielding device according to claim 2, wherein the fixing portion includes a fixing hole formed in the first bracket and an insertion hole formed in the second bracket. And a fixing tool that is fixed to the fixing hole through the insertion hole and fixes the first bracket and the second bracket.

  According to the light shielding device of the third aspect, the first bracket and the second bracket can be fixed by a simple operation in which the fixing tool is fixed to the fixing hole through the insertion hole.

  The light-shielding device according to claim 4 is the light-shielding device according to any one of claims 1 to 3, wherein a hole is formed on a base end side of the rotating arm, and the first bracket is provided with a hole. In addition, a rotation support portion that is rotatably inserted into the hole portion is provided.

  According to the light-shielding device of the fourth aspect, the rotation arm can be rotated with a simple configuration including the hole portion and the rotation support portion.

  The light-shielding device according to claim 5 is the light-shielding device according to any one of claims 1 to 4, wherein the rotating arm is sandwiched between the first bracket and the second bracket. It has been configured.

  According to the light-shielding device of the fifth aspect, the rotating arm is sandwiched between the first bracket and the second bracket. Therefore, it is possible to prevent the pivot arm from rattling in the axial direction of the pivot center.

It is a figure which shows the whole light-shielding device structure which concerns on one Embodiment of this invention. It is a principal part enlarged view of the light-shielding apparatus which concerns on one Embodiment of this invention. It is an exploded view of the light-shielding device concerning one embodiment of the present invention. It is a figure which shows the state which expanded the screen in one Embodiment of this invention in a vehicle. It is a figure which shows the modification of the light-shielding apparatus which concerns on one Embodiment of this invention. It is a figure which shows the modification of the light-shielding apparatus which concerns on one Embodiment of this invention. It is a figure which shows the whole structure of the light-shielding apparatus which concerns on a comparative example. It is a figure which shows the state which expanded the screen in a comparative example in a vehicle.

  First, an outline of a light shielding device 10 according to an embodiment of the present invention will be described with reference to FIG.

  A light shielding device 10 according to an embodiment of the present invention is for shielding a rear glass provided in a vehicle such as a passenger car, for example, and includes a base member 12, a drive motor 14, and a driving force transmission mechanism 16. A pair of arms 18, a winding mechanism 20, a screen 22, a pair of first brackets 24, and a pair of second brackets 26 are provided as main components.

  The base member 12 is constituted by a longitudinal pipe, and the drive motor 14 is fixed to the center portion in the longitudinal direction of the base member 12.

  The driving force transmission mechanism 16 includes a link lever 28, a pair of link rods 30, and a pair of levers 32. The link lever 28 is formed in a longitudinal shape, and the central portion in the longitudinal direction is fixed to the output shaft 34 of the drive motor 14 so as to be integrally rotatable.

  Further, the rotation end side of the link lever 28 is rotatably connected to one end side of the link rod 30, and the other end side of the link rod 30 is rotatably connected to the lever 32. Furthermore, the lever 32 is integrally provided on the base end side of a lower arm 38 to be described later.

  The pair of arms 18 includes an upper arm 36 and a lower arm 38 (rotating arm). The base end side of the upper arm 36 is rotatably connected to the distal end side of the lower arm 38 via the intermediate joint 40, and the distal end side of the upper arm 36 is rotatable to both sides in the width direction of the screen support member 44 described later. It is connected to. Further, the base end side of the lower arm 38 is rotatably supported by the first bracket 24 as will be described in detail later.

  As will be described in detail later, the winding mechanism 20 is fixed to the second bracket 26, and is supported by a support shaft 42 and a winding member 43 that is rotatably supported by the support shaft 42 and winds the screen 22. In addition, the winding member 43 includes a spring (not shown) that urges the winding member 43 in the rotational direction with respect to the support shaft 42.

  The screen 22 is made of a cloth material having a light shielding property or the like, and is formed in a sheet shape. A base end side of the screen 22 is fixed to a winding member 43, and a screen support member 44 is provided on the development side of the screen 22. The screen support member 44 is provided along the width direction edge portion 22A on the development side of the screen 22, and supports the screen 22 in a state of being expanded in the width direction.

  In the light shielding device 10, when the drive motor 14 rotates forward and the link lever 28 is rotated in the R1 direction, the lever 32 is rotated in the R3 direction, and the lower arm 38 is rotated in the R5 direction. When the lower arm 38 is rotated in the R5 direction, the upper arm 36 is rotated in the R7 direction, and the screen 22 is pulled upward, whereby the screen 22 is deployed from the winding mechanism 20.

  At this time, the screen 22 is pulled by the winding mechanism 20 in the winding direction. Accordingly, the slack of the screen 22 is prevented and the screen 22 is expanded. Further, an assist spring 45 is provided between the distal end side of the lever 32 and the base member 12, and an assist force is applied to the lower arm 38 in the R5 direction by the assist spring 45.

  On the other hand, when the drive motor 14 is reversed and the link lever 28 is rotated in the R2 direction, the lever 32 is rotated in the R4 direction, and the lower arm 38 is rotated in the R6 direction. When the lower arm 38 is rotated in the R6 direction, the upper arm 36 is rotated in the R8 direction, and the screen 22 is taken up by the take-up mechanism 20.

  Next, the light shielding device 10 according to an embodiment of the present invention will be described in more detail with reference to FIGS.

  In FIG. 3, for easy understanding, the angle of the second bracket 26 with respect to the first bracket 24 is illustrated differently from the angle in the assembled state of FIG. 2.

  The first bracket 24 includes a main body portion 46 and a pipe-like connecting portion 48. A boss portion 50 is formed to protrude from the main body portion 46, and an annular support surface 52 that faces one side in the axial direction (Z1 side) of the rotation center of the lower arm 38 is formed on the tip side of the boss portion 50. A rotation support portion 56 that is rotatably inserted into a hole portion 54 formed on the base end side of the lower arm 38 is formed.

  Further, the boss portion 50 is formed with a screw hole 58 (a part of the fixing portion, a fixing hole) coaxially with the rotation support portion 56. Further, the body portion 46 is provided with a fixing portion 59 to the vehicle body on both sides of the boss portion 50. Further, a plurality of insertion holes 60 are formed in the main body portion 46.

  The other first bracket 24 arranged on the other longitudinal side (X2 side) of the base member 12 shown in FIG. 1 is the longitudinal one side (X1 side) of the base member 12 shown in FIGS. The first bracket 24 is arranged in the same manner as the first bracket 24, and detailed description thereof is omitted here.

  The second bracket 26 includes a main body 62, a fixed piece 64 (connecting portion) that is connected and fixed to a package tray (vehicle body) (not shown), and a stopper piece that restricts the rotation of the lever 32 when the screen 22 is deployed. 66 (regulating portion), a support piece 68 (support portion) for supporting the winding mechanism 20, an attachment piece 70 for attaching a cushion material 98 to be described later, and the first bracket 24 for positioning. A positioning piece 72 is formed.

  The main body 62 has an insertion hole 74 (a part of the fixing portion), the fixing piece 64 has a fixing hole 76, and the support piece 68 has a hole 77.

  The other second bracket 26 arranged on the other longitudinal side (X2 side) of the base member 12 is in contrast to the one second bracket 26 arranged on the one longitudinal side (X1 side) of the base member 12. Instead of the support piece 68, a support piece 78 is provided. A slit 80 and a plurality of screw holes 82 are formed in the support piece 78.

  The base member 12, the winding mechanism 20, the lower arm 38, the first bracket 24, and the second bracket 26 are assembled in the following manner.

  That is, by inserting the base member 12 into the connecting portion 48 shown in FIG. 3 and caulking a plurality of circumferential portions of the connecting portion 48 in this state, the first bracket 24 is attached to the longitudinal end portion of the base member 12. Fix it.

  Further, the rotation support portion 56 is rotatably inserted into the hole portion 54, and the lower arm 38 is supported by the support surface 52 from the other axial side (Z2 side) of the rotation center. Further, in a state where the hole portion 84 formed in the lever 32 and the hole portion 86 formed in the link rod 30 are aligned, a pin 88 is inserted into both the hole portions 84 and 86, and the tip of the pin 88 is inserted. By caulking the side, the lever 32 and the link rod 30 are rotatably connected. Further, the hook 90 formed on the assist spring 45 is inserted into the hole 92 formed in the lever 32 and hooked on the periphery of the hole 92.

  Further, the second bracket 26 is brought closer to the first bracket 24 from one axial direction side (Z1 side) of the rotation center with respect to the lower arm 38, and the positioning piece 72 is inserted into the insertion hole 60, so that the first bracket 24 and the second bracket 26 and positioning. Then, the bolt 94 (fixing tool) is inserted into the spring washer 96 and the bolt 94 is screwed into the screw hole 58 through the insertion hole 74 and the hole portion 54 from the side opposite to the first bracket 24 with respect to the second bracket 26.

  Accordingly, the second bracket 26 is disposed on one side (Z1 side) in the axial direction of the rotation center of the lower arm 38 with respect to the first bracket 24 and is fixed to the first bracket 24. Further, the lower arm 38 is sandwiched between the first bracket 24 and the second bracket 26.

  Further, the cushion member 98 that is brought into contact with the screen support member 44 (see FIG. 1) when the screen 22 is in the winding state is fixed to the attachment piece 70. Further, one side 42 </ b> A of the support shaft 42 is inserted into the hole 77, and the flat portion 102 is inserted into the slit 80.

  Then, the other side 42B of the support shaft 42 is inserted into the hole portion 106 formed in the detachment prevention plate 104, and the screw 110 is inserted into the hole portion 108 that is also formed in the detachment prevention plate 104. Screw into the hole 82. Accordingly, the detachment prevention plate 104 is fixed to the support piece 78, and the support shaft 42 is supported by the pair of second brackets 26 so as not to rotate.

  The base member 12, the winding mechanism 20, the lower arm 38, the first bracket 24, and the second bracket 26 are assembled in the manner described above. Of course, it may be assembled in an order other than the above.

  Further, the detachment prevention plate 114 shown in FIGS. 5 and 6 may be used instead of the detachment prevention plate 104 described above. The detachment prevention plate 114 includes a hook 116 and a plurality of protrusions 118, and the hook 116 is engaged with the support piece 78 and the protrusion 118 is formed in the hole formed in the support piece 78. By being inserted into 120, the support piece 78 is assembled with one touch.

  Next, the operation and effect of one embodiment of the present invention will be described.

  First, in order to clarify the operation and effect of an embodiment of the present invention, a light shielding device 210 according to a comparative example will be described.

  In the light shielding device 210 according to the comparative example shown in FIG. 7, the fixing pieces 264 fixed to the package tray and the stopper pieces 266 to be in contact with the lower arm 238 and the screen support member 244 are provided on both sides in the longitudinal direction of the base member 212. Each bracket 226 is provided. For this reason, each lower arm 238 is provided at a position closer to the center than the longitudinal end of the base member 212.

  Therefore, as shown in FIG. 8, when the screen 222 is deployed, the screen 222, the arm 218, and the C pillar 221 are separated in the vehicle width direction, and there is a problem that a sufficient light shielding area of the screen 222 cannot be secured. there were.

  On the other hand, according to the light-shielding device 10 according to the embodiment of the present invention, as shown in FIGS. 2 and 3, the second bracket 26 in which the fixing piece 64, the stopper piece 66, the support piece 68 and the like are formed. Is arranged on one side (Z1 side) in the axial direction of the rotation center of the lower arm 38 with respect to the first bracket 24 that rotatably supports the lower arm 38. Thus, the first bracket 24 can be disposed on the end side in the longitudinal direction of the base member 12, and the first bracket 24 is provided at the end portion in the longitudinal direction of the base member 12.

  For this reason, as shown in FIG. 1 as compared with the configuration in which the lower arm 238 is rotatably supported on the center side in the longitudinal direction of the base member 212 with respect to the bracket 226 as in the light shielding device 210 according to the comparative example described above. Further, the rotation center of the lower arm 38 is located on the outer side of the light shielding device 10. Therefore, as shown in FIG. 4, the screen 22 and the arm 18 can be configured to be closer to the C pillar 121 when the screen 22 is deployed.

  And in the light-shielding device 10 which concerns on one Embodiment of this invention, as FIG. 4 shows, when the screen 22 is expand | deployed, it is comprised so that the vertical edge of the screen 22 and the lower arm 38 may become a square shape. Has been. Thereby, the clearance gap between the screen 22 and the lower arm 38 and the C pillar 121 can be reduced, and the light shielding area of the screen 22 can be sufficiently secured.

  Moreover, according to the light-shielding device 10 according to the embodiment of the present invention, the screw hole 58 and the insertion hole 74 for fixing the first bracket 24 and the second bracket 26 to each other are the rotation center of the lower arm 38 (that is, It is provided coaxially with the rotation support part 56). Therefore, the first bracket 24 and the second bracket 26 can be reduced in size.

  Moreover, according to the light-shielding device 10 according to an embodiment of the present invention, the first bracket 24 and the second bracket 26 are fixed by a simple operation of screwing the bolt 94 into the screw hole 58 through the insertion hole 74. be able to.

  Moreover, according to the light-shielding device 10 according to the embodiment of the present invention, the lower arm 38 can be rotated with a simple configuration including the hole portion 54 and the rotation support portion 56.

  Further, according to the light shielding device 10 according to the embodiment of the present invention, the lower arm 38 is sandwiched between the first bracket 24 and the second bracket 26. Therefore, the lower arm 38 can be prevented from rattling in the axial direction of the rotation center.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited above, Of course, it can change and implement variously within the range which does not deviate from the main point. .

  For example, in the above embodiment, the lower arm 38 is sandwiched between the first bracket 24 and the second bracket 26. However, when the lower arm 38 can be prevented from rattling in the axial direction of the rotation center, the lower arm 38 38 may be provided on one side (Z1 side) in the axial direction of the rotation center with respect to the second bracket 26.

  Moreover, in the said embodiment, although the 1st bracket 24 and the 2nd bracket 26 were set as the structure fixed with the volt | bolt 94 and the screw hole 58, you may be set as the structure fixed with fixing tools, such as a crimping pin. good.

  In the above-described embodiment, the screen 22 is expanded and wound by the arm 18 including the upper arm 36 and the lower arm 38. However, the screen 22 is expanded and wound only by the lower arm 38. May be.

  In the above embodiment, the fixed piece 64, the stopper piece 66, and the support piece 68 are formed on the second bracket 26, but a structure having a function equivalent to any of these is used instead of the second bracket 26. One bracket 24 may be formed.

DESCRIPTION OF SYMBOLS 10 ... Shading device, 12 ... Base member, 14 ... Drive motor, 16 ... Drive force transmission mechanism, 20 ... Winding mechanism, 22 ... Screen, 24 ... First Bracket, 26 ... second bracket, 36 ... upper arm, 38 ... lower arm (rotating arm), 54 ... hole (hole formed on the base end side of the rotating arm), 56・ ・ ・ Rotation support part, 58 ・ ・ ・ Screw hole (part of fixing part, fixing hole), 64 ・ ・ ・ Fixing piece (connecting part to vehicle body), 66 ・ ・ ・ Stopper piece (regulating part), 68 ... support piece (support part), 74 ... insertion hole (part of the fixing part), 94 ... bolt (fixing tool)

Claims (5)

A base member formed in a longitudinal shape;
A drive motor provided on the longitudinal center side of the base member;
A rotation arm connected to the drive motor via a drive force transmission mechanism and rotated with respect to the base member in response to the drive force of the drive motor;
A sheet-like screen connected to the pivot arm and deployed from the winding mechanism as the pivot arm pivots;
A first bracket provided at a longitudinal end of the base member and rotatably supporting the rotating arm;
Arranged on one side in the axial direction of the pivot center of the pivot arm with respect to the first bracket and fixed to the first bracket, the connecting portion to the vehicle body and the pivot of the pivot arm are restricted. A second bracket formed with at least one of a restriction portion and a support portion for supporting the winding mechanism;
A light-shielding device. In the first bracket and the second bracket, a fixing portion for fixing each other is provided coaxially with the rotation center of the rotation arm.
The light-shielding device according to claim 1. The fixing part is
A fixing hole formed in the first bracket;
An insertion hole formed in the second bracket;
Have
A fixing tool that is fixed to the fixing hole through the insertion hole and fixes the first bracket and the second bracket,
The light-shielding device according to claim 2. A hole is formed on the base end side of the pivot arm,
The first bracket is provided with a rotation support portion that is rotatably inserted into the hole portion.
The light-shielding device according to any one of claims 1 to 3. The pivot arm is sandwiched between the first bracket and the second bracket;
The light-shielding apparatus as described in any one of Claims 1-4.

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