JP6368668B2 - Tonneau cover device and method of manufacturing tonneau cover device - Google Patents

Description

The present invention relates to a tonneau cover device and a method for manufacturing the tonneau cover device .

Patent Document 1 below discloses a tonneau cover device for a vehicle. The tonneau cover device includes a winding pipe around which a sheet is wound, and a coil spring that urges the winding pipe in the sheet winding direction. In addition, a silencer is provided between the winding pipe and the coil spring to prevent the generation of noise due to the coil spring coming into contact with the winding pipe.

JP 2014-226969 A

In the tonneau cover device described in Patent Document 1, since the coil spring is arranged in the winding pipe, the number of parts such as the silencer is increased.

Moreover, in the tonneau cover apparatus described in the above-mentioned Patent Document 1, it is necessary to pre-wind the coil spring after assembling the coil spring to a take-up pipe or the like, which complicates the manufacturing process of the tonneau cover apparatus .

In view of the above fact, the present invention has as its first object to obtain a tonneau cover device capable of suppressing an increase in the number of component parts, and a method for manufacturing a tonneau cover device capable of simplifying the manufacturing process. The second purpose is to obtain the above.

The tonneau cover device according to claim 1, wherein one end of the sheet is attached and the winding unit winds up the sheet by rotating to one side in the circumferential direction around the axis, and one end in the axial direction of the winding unit A spring guide that rotates integrally with the winding portion, and one end portion of the spring guide that is locked to the spring guide and wound around the spring guide, and the spring guide is rotated to one side in the circumferential direction. And a spring guide support portion for locking the other end portion of the mainspring spring and rotatably supporting the spring guide.

According to the tonneau cover apparatus of the first aspect, the spring guide supported by the spring guide support portion is rotated to one side in the circumferential direction by the urging force of the mainspring spring. Accordingly, the winding unit is rotated together with the spring guide, and the sheet is wound on the winding unit. Here, in the present invention, the configuration is such that the rotational force to one side in the circumferential direction is input to the winding unit by attaching the spring guide wound with the mainspring spring to the end of one side in the axial direction of the winding unit. It is said that. Therefore, the winding unit and the coil spring are in contact with each other as compared with a configuration in which a rotational force is input to the winding unit by the coil spring disposed inside the winding unit formed in a pipe shape. The structure for preventing the abnormal noise due to is eliminated. Thereby, in this invention, it can suppress that the score of a component increases.

Tonneau cover device of claim 2, in tonneau cover device according to claim 1, wherein the spiral spring is formed by spiral spring arrangement member formed in a plate shape it is wound.

According to the tonneau cover apparatus of the second aspect, since the mainspring spring constituting member is formed in a plate shape, it is possible to suppress an increase in the radial direction of the mainspring spring.

The tonneau cover device according to claim 3, in tonneau cover device according to claim 2, the width of the spiral spring arrangement member, by being enlarged or reduced along the longitudinal direction of the spiral spring arrangement member, the spiral spring The rotational force input to the spring guide is adjusted.

According to the tonneau cover apparatus of the third aspect, the rotational force input from the mainspring spring to the spring guide can be easily adjusted by setting the width dimension of the mainspring spring component as described above.
A tonneau cover device according to a fourth aspect is the tonneau cover device according to any one of the first to third aspects, wherein the tonneau cover device is provided at an end portion on the other side in the axial direction of the winding portion, and is integrated with the winding portion. A bush supporting portion having a shaft portion for supporting the bush, a holder portion fixed to a fixed portion provided on the vehicle side, the bush supporting portion being fixed, The holder portion is attached to the end portion on the other axial side of the winding portion in the case.

The method for manufacturing a tonneau cover device according to claim 5 is applied to the manufacture of the tonneau cover device according to any one of claims 1 to 4 , and is biased in a direction rotated to one side in the circumferential direction. A first step of attaching the spring guide, which is restricted in rotation with respect to the spring guide support portion, to an end portion on one side in the axial direction of the winding portion, and restricting rotation of the spring guide with respect to the spring guide support portion. And a second step of winding the sheet on the winding unit by releasing.

According to the method for manufacturing a tonneau cover device according to claim 5, the step of pre-winding the spring spring (the spring spring is compressed in advance so that the spring spring biases the spring guide toward one side in the circumferential direction). Since it is not necessary to provide the step of keeping the diameter between the first step and the second step, the manufacturing process can be simplified.

Method for producing a tonneau cover device according to claim 6 is a method of manufacturing a tonneau cover device according to claim 5, by pulling the restriction pin for regulating the rotation relative to the spring guide supporting portion of the spring guide, the said spring guide Release the rotation restriction on the spring guide support.

According to the manufacturing method of the tonneau cover device according to the sixth aspect , the restriction of the rotation of the spring guide with respect to the spring guide support portion can be released by a simple operation of pulling out the restriction pin.

The tonneau cover device according to the present invention has an excellent effect that the increase in the number of components can be suppressed. Moreover, the manufacturing method of the tonneau cover apparatus according to the present invention has an excellent effect that the manufacturing process can be simplified.

It is a disassembled perspective view which decomposes | disassembles and shows a tonneau cover apparatus. It is a disassembled perspective view which shows the spring guide, mainspring spring, rod guide, etc. which comprise a left side support apparatus. It is a sectional side view which shows the cross section which cut | disconnected the spring guide, mainspring spring, and rod guide which comprise a left side support apparatus along an axial direction. It is a top view which shows the mainspring spring structural member which comprises a mainspring spring. It is an expansion perspective view which shows a rod guide. It is a fragmentary sectional view which shows the process of extracting the control pin engaged with the left side support apparatus.

A tonneau cover apparatus according to an embodiment of the present invention will be described with reference to FIGS. The tonneau cover device is mounted on a vehicle. An arrow FR appropriately shown in FIGS. 1 and 2 indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow W indicates the vehicle width direction. Show.

As shown in FIG. 1, the tonneau cover device 10 of the tonneau cover device, as an example, is provided on the rear of the vehicle luggage compartment (not shown), the tonneau cover device 10 is positioned adjacent the top rear of the rear seat Yes.

  The tonneau cover device 10 includes a tonneau cover 12 as a sheet, a winding pipe 14 as a winding unit around which the tonneau cover 12 is wound, and a case 16 that covers the winding pipe 14. In addition, the tonneau cover device 10 includes a right support device 18 that rotatably supports one end portion (right end portion in the vehicle width direction) of the winding pipe 14, and the other end portion (vehicle position) of the winding pipe 14. A left side support device 20 having a biasing mechanism that biases the winding pipe 14 in a direction in which the winding pipe 14 is rotated in one circumferential direction (arrow C direction). I have.

  The tonneau cover 12 is formed in a substantially rectangular sheet shape, and one end 12 </ b> A of the tonneau cover 12 is fixed to the take-up pipe 14 via an adhesive tape 22. The other end of the tonneau cover 12 is fixed with a locking portion 24 that holds the tonneau cover 12 in a state of being pulled out from a case 16 to be described later by being locked to a locked portion provided on the vehicle side. ing. Note that the locking portion 24 comes into contact with the outlet 26 of the case 16 when the tonneau cover 12 is wound around the winding pipe 14.

  The winding pipe 14 is formed in a cylindrical shape whose longitudinal direction is the vehicle width direction, and a bush 30 constituting a part of a right side support device 18 to be described later is formed at one end of the winding pipe 14. A spline (not shown) to be engaged is formed. In addition, a spline (not shown) is formed at the other end of the take-up pipe 14 to be engaged with a spring guide 36 that constitutes a part of the left side support device 20 described later.

  The case 16 is formed in a long box shape in which both ends in the longitudinal direction are open, and the outlet 26 is formed in the case 16 along the longitudinal direction. Then, the tonneau cover 12 wound around the winding pipe 14 can be pulled out through the outlet 26. Further, the right support device 18 and the left support device 20 are fixed to both ends in the longitudinal direction of the case 16 via bolts 28.

  The right support device 18 is formed in a cylindrical shape, and is attached to an end portion on one side of the winding pipe 14 so as to be integrally rotatable with the winding pipe 14, and a shaft that rotatably supports the bush 30. And a bush support portion 32 having a portion 32A. Further, the right support device 18 includes a holder portion 34 that is fixed to a fixed portion (not shown) provided on the vehicle side while the bush support portion 32 is fixed.

  As shown in FIG. 2, the left side support device 20 includes a spring guide 36 attached to the end of the winding pipe 14 on the left side in the vehicle width direction, and the spring guide 36 by one's own elastic force. And a rod guide 40 as a spring guide support portion that rotatably supports the spring guide 36.

  As shown in FIGS. 2 and 3, the spring guide 36 includes a winding portion 36A around which a spring spring 38, which will be described later, is wound, and a pair of axial portions provided on one side and the other side of the winding portion 36A. A disc portion 36B, an engaging portion 36C that protrudes from the axial center portion of the disc portion 36B on one side toward the take-up pipe 14 and is disposed coaxially with the winding portion 36A, and a circle on the other side A shaft portion 36D that protrudes from the axial center portion of the plate portion 36B toward the side opposite to the winding pipe 14 and is disposed coaxially with the winding portion 36A is provided. The winding portion 36A is formed in a columnar shape, and a locking groove (not shown) in which one end portion 38A of the mainspring spring 38 is locked is formed in the winding portion 36A. The pair of disk parts 36B is formed in a disk shape having a diameter larger than the outer diameter of the winding part 36A and having the axial direction of the winding part 36A in the thickness direction. Furthermore, an engagement hole 36E that engages a restriction pin 44 (see FIG. 6) to be described later is formed in a radially outer portion of the pair of disk portions 36B. A spline 36F that engages with a spline (not shown) formed at the left end of the winding pipe 14 in the vehicle width direction is formed on the outer periphery of the engaging portion 36C. Then, the spline 36F formed in the engaging portion 36C is engaged with a spline (not shown) formed at the left end of the winding pipe 14 in the vehicle width direction, so that the spring guide 36 and the winding pipe 14 are connected. It is possible to rotate integrally.

  As shown in FIGS. 2 and 4, the mainspring spring 38 is formed by winding a mainspring spring constituting member 42 formed in a plate shape. As shown in FIG. 4, the mainspring spring constituting member 42 is a thin steel plate that is formed in a long band shape and is subjected to a quenching process or the like. The width dimension W1 of the part 42C from the central part 42A in the longitudinal direction of the mainspring spring constituting member 42 to one end part 42B (the end part engaged with the winding part 36A of the spring guide 36) is as follows. It is almost constant. Further, the width dimension W2 of the portion 42E from the center portion 42A in the longitudinal direction of the mainspring spring constituting member 42 to the other end portion 42D (end portion on the side locked by the rod guide 40) It is set so as to gradually become smaller toward the other end 42D side of the component member 42. Thereby, the rotational force input from the mainspring spring 38 to the spring guide 36 is adjusted.

  As shown in FIGS. 3 and 5, the rod guide 40 is formed in a bottomed box shape in which the spring guide 36 is disposed, and the rod guide 40 rotates the shaft portion 36 </ b> D of the spring guide 36. A bottom wall 40B having a support hole 40A that freely supports, and a peripheral wall 40C that bends and extends from the outer peripheral end of the bottom wall 40B toward the winding pipe 14 side. An engagement hole 40D is formed in a portion of the bottom wall 40B on the radially outer side of the support hole 40A to be engaged with a later-described regulation pin 44 (see FIG. 6). Further, the peripheral edge portion of the support hole 40A in the bottom wall 40B is formed in a convex shape toward the spring guide 36 side. As a result, the contact area between the bottom wall 40B and the disk portion 36B of the spring guide 36 is reduced, and the frictional force due to the sliding contact between both is reduced. Furthermore, the bottom wall 40B and the peripheral wall 40C are provided with an engaged rib 40E that is engaged with the other end 38B of the mainspring spring 38 (the other end 42D of the mainspring spring constituting member 42). The peripheral wall 40C is formed with a relief groove 40F for escaping the outer end of the tonneau cover 12 in the vehicle width direction.

  Next, the manufacturing method of the tonneau cover apparatus 10 of this embodiment is demonstrated.

  Here, as shown in FIG. 1, the production line of the tonneau cover device 10 includes a winding pipe 14 to which one end 12 </ b> A of the tonneau cover 12 is fixed, a case 16, a right support device 18, and a left support device 20. And are carried in.

  Here, the left side support device 20 is carried into the production line in a state in which temporary assembly has been performed in advance. Specifically, as shown in FIG. 3, the mainspring spring 38 is wound around the winding portion 36 </ b> A of the spring guide 36 in a state where one end portion 38 </ b> A of the mainspring spring 38 is locked. Further, since the spring guide 36 is disposed in the rod guide 40, the shaft portion 36D of the spring guide 36 is supported by the support hole 40A of the rod guide 40 and the other end portion 38B of the mainspring spring 38 is engaged. Locked to the retaining rib 40E. As shown in FIG. 6, the regulation pin 44 is engaged with the engagement hole 40 </ b> D of the rod guide 40 and the spring in a state in which the spring guide 36 is rotated to the other circumferential side with respect to the rod guide 40 by a predetermined number of rotations. By engaging with the engagement hole 36 </ b> E of the guide 36, the rotation of the spring guide 36 relative to the rod guide 40 is restricted. Further, in a state where the rotation of the spring guide 36 with respect to the rod guide 40 is restricted, the spring guide 36 is biased in a direction in which the spring guide 36 is rotated to one side in the circumferential direction.

  In the present embodiment, the right support device 18 is also carried into the production line in a preliminarily assembled state, but the process of temporarily assembling the right support device 18 may be incorporated into the process of the production line.

  In the production line, as shown in FIGS. 1, 2, and 6, first, the winding pipe 14 to which the one end 12 </ b> A of the tonneau cover 12 is fixed is disposed inside the case 16 (winding pipe arranging step). ).

  Next, after engaging the bush 30 of the right support device 18 with one end portion of the winding pipe 14, the holder portion 34 of the right support device 18 is fixed to one end portion of the case 16 via a bolt 28 ( Right support part mounting process).

  Next, after engaging the spline 36F of the spring guide 36 of the left support device 20 with the other end portion of the winding pipe 14, the rod guide 40 of the left support device 20 is bolted to the other end portion of the case 16. (Left support part mounting step).

  Next, the restriction pin 44 engaged with the engagement hole 40 </ b> D of the rod guide 40 and the engagement hole 36 </ b> E of the spring guide 36 is pulled out, thereby releasing the restriction on the rotation of the spring guide 36 with respect to the rod guide 40. Thereby, the winding pipe 14 is rotated together with the spring guide 36, and the tonneau cover 12 is wound around the winding pipe 14 (sheet winding process).

  The tonneau cover apparatus 10 is manufactured through the above steps.

(Operation and effect of this embodiment)
Next, the operation and effect of this embodiment will be described.

  According to the tonneau cover device 10 of the present embodiment described above, the tonneau cover 12 is pulled out from the outlet 26 of the case 16 and the engaging portion 24 provided at the other end of the tonneau cover 12 is engaged on the vehicle side. The luggage compartment provided on the rear side of the rear seat of the cabin is covered with the tonneau cover 12 by being locked to the stop portion.

  Further, when the locking portion 24 provided at the other end portion of the tonneau cover 12 is removed from the locked portion provided on the vehicle side, the spring guide 36 supported by the rod guide 40 is caused by the urging force of the mainspring spring 38. It is rotated to one side in the circumferential direction. Thereby, the winding pipe 14 is rotated together with the spring guide 36, and the tonneau cover 12 is wound around the winding pipe 14 (the tonneau cover 12 is stored in the case 16).

  Here, in this embodiment, by attaching the spring guide 36 around which the mainspring spring 38 is wound to the end portion on the other side in the axial direction of the winding pipe 14, the rotational force in one circumferential direction is applied to the winding pipe 14. It is set as the structure inputted into. Therefore, the winding pipe 14 and the coil spring are compared with the case where the rotational force is input to the winding pipe 14 by the coil spring arranged inside the winding pipe 14 formed in a pipe shape. A structure for preventing abnormal noise due to contact is eliminated. Thereby, in this embodiment, it can suppress that the score of the components which comprise the tonneau cover 12 increases.

  Further, according to the tonneau cover device 10 of the present embodiment, the mainspring spring 38 constituting a part of the left side support device 20 is formed by the mainspring spring forming member 42 formed in a plate shape. The enlargement in the radial direction can be suppressed. Thereby, the enlargement of the left side support apparatus 20 can be suppressed.

  Further, in the tonneau cover device 10 of the present embodiment, the width dimension W2 of the portion 42E from the longitudinal central portion 42A of the mainspring spring constituting member 42 to the other end portion 42D is set to the other width of the mainspring spring constituting member 42. It is set so as to gradually become smaller toward the end portion 42D side. Thereby, the rotational force input from the mainspring spring 38 to the spring guide 36 can be adjusted. In this embodiment, as compared with the case where the width dimension W2 of the portion 42E from the center part 42A in the longitudinal direction of the mainspring spring constituting member 42 to the other end part 42D is set to a substantially constant width dimension W1. The rotational force input from the mainspring spring 38 to the spring guide 36 is adjusted to be small.

  Moreover, according to the manufacturing method of the tonneau cover apparatus 10 of the present embodiment, the step in which the mainspring spring 38 is pre-wound (so that the mainspring spring 38 urges the spring guide 36 to one side in the circumferential direction, It is not necessary to provide the step of reducing the diameter of the spring spring 38 in advance between the left support portion attaching step and the sheet winding step. Thereby, simplification of the manufacturing process of the tonneau cover apparatus 10 can be achieved.

  Furthermore, according to the manufacturing method of the tonneau cover apparatus 10 of the present embodiment, the restriction of the rotation of the spring guide 36 relative to the rod guide 40 can be released by a simple operation of pulling out the restriction pin 44.

  In the present embodiment, the restriction pin 44 is engaged with the engagement hole 40D of the rod guide 40 and the engagement hole 36E of the spring guide 36 so that the rotation of the spring guide 36 relative to the rod guide 40 is restricted. Although described, the present invention is not limited to this. For example, by providing an engaging claw or the like that engages with the outer peripheral portion of the spring guide 36 on the peripheral wall 40C of the rod guide 40, the rotation of the spring guide 36 relative to the rod guide 40 can be restricted.

  Further, in this embodiment, the width dimension W2 of the portion 42E from the central portion 42A in the longitudinal direction of the mainspring spring constituting member 42 forming the mainspring spring 38 to the other end portion 42D is set as the spring spring constituting member 42. Although the example set so that it may become gradually small as it goes to the edge part 42D side of the other side of this was demonstrated, this invention is not limited to this. The width dimension of the mainspring spring constituting member 42 forming the mainspring spring 38 may be appropriately set in consideration of the rotational force input from the mainspring spring 38 to the spring guide 36.

Furthermore, although this embodiment demonstrated the example which formed the mainspring spring 38 using the mainspring spring structural member 42 formed in plate shape, this invention is not limited to this. For example, the mainspring spring can be formed by winding a linear member in a spiral shape.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and various modifications other than the above can be implemented without departing from the spirit of the present invention. Of course.

10 tonneau cover equipment 12 tonneau cover (sheet)
14 Winding pipe (winding part)
36 Spring guide 38 Spring spring 38A Spring spring one end 38B Spring spring other end 40 Rod guide (spring guide support)
42 Winding spring constituent member 44 Restriction pin W1 Width dimension W2 of the spring spring constituent member Width dimension of the spring spring constituent member

Claims (6)

One end of the sheet is attached, and a winding unit that winds the sheet by rotating to one side in the circumferential direction around the axis,
A spring guide provided at an end portion on one axial side of the winding portion and rotating integrally with the winding portion;
A mainspring spring that has one end locked to the spring guide and wound around the spring guide, and urges the spring guide to rotate in one circumferential direction;
A spring guide support portion for locking the other end of the mainspring spring and rotatably supporting the spring guide;
Equipped with a,
The winding part is disposed in a case in which both ends in the axial direction of the winding part are released,
The spring guide support portion having a support hole is attached to an end portion on one axial side of the winding portion in the case,
A tonneau cover device in which the spring guide is directly supported by the support hole . The tonneau cover device according to claim 1, wherein the mainspring spring is formed by winding a spring member constituting a spring. The rotational force input from the spring to the spring guide is adjusted by increasing or decreasing the width dimension of the spring spring component along the longitudinal direction of the spring spring component. The tonneau cover apparatus of description. A bush provided at an end portion on the other side in the axial direction of the winding portion and rotating integrally with the winding portion;
A bush support portion having a shaft portion for supporting the bush;
A holder portion fixed to the fixed portion provided on the vehicle side while the bush support portion is fixed, and
The tonneau cover apparatus of any one of Claims 1-3 in which the said holder part is attached to the edge part of the axial direction other side of the said winding part in the said case. It is applied to manufacture of the tonneau cover device according to any one of claims 1 to 4 ,
A first step of attaching the spring guide, which is biased in the direction of rotation to one side in the circumferential direction and restricted in rotation with respect to the spring guide support portion, to an end portion on one side in the axial direction of the winding portion;
A second step of winding the sheet around the winding portion by releasing the restriction of rotation of the spring guide with respect to the spring guide support portion;
A method of manufacturing a tonneau cover device having The method for manufacturing a tonneau cover device according to claim 5 , wherein the restriction of rotation of the spring guide with respect to the spring guide support portion is released by pulling out a restriction pin that restricts rotation of the spring guide with respect to the spring guide support portion.

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