JP2002174085A - Sheet take-up device and tonneau cover device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet take-up device and a tonneau cover device capable of reducing the number of components for the inside spring system sheet take-up device to reduce weight and solving the inconveniences of the generation of an unusual sound or the like. SOLUTION: The tonneau cover device applying the sheet take-up device thereto includes loading shafts 15 and 16 pivoting a tonneau cover take-up shaft 13 on the surfaces opposing resin-made side covers 11 and 12 mounting on both right and left sides of a vehicle baggage room against them in a rotatable manner and, at the same time, a mounting for mounting one end of a coil spring on the front end of one loading shaft 15 is integrally formed. It is favorable that the abrasion in the loading shafts 15 and 16 is relieved by loading resin-made sliding rings 19 and 20 sliding between the loading shafts 15 and 16 on both ends of the tonneau take-up shaft 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet winding device which is lightweight, compact and space-saving, and more particularly, to a luggage compartment disposed behind a rear seat of a station wagon or the like. It is suitable as a tonneau cover device for installing a tonneau cover for concealing luggage on the upper part of the device, or a device for winding up a sheet-like sunshade or a blind attached so as to cover a window.

[0002]

2. Description of the Related Art A sheet winding device for winding and storing a flexible and wide sheet on a sheet winding shaft urged in a rotating direction for winding the sheet is a tonneau cover device to be attached to an opening of a luggage compartment of a car or the like. It is also used as a device such as a sunshade or a blind to cover windows.

[0003] The tonneau cover device is designed to prevent luggage placed in a luggage compartment formed in a space behind a rear seat such as a wagon car from being seen from outside a window and to block direct sunlight.
It is a device that arranges a tonneau cover so as to cover the upper part of the luggage compartment. I have.

[0004] The tonneau cover device includes a winding shaft for a tonneau cover rotatably provided between side covers as supports attached to the left and right frames of the vehicle. The tonneau cover has one end of the tonneau cover fixed to the winding shaft.
The tonneau cover device is of the outer spring type with a winding spring attached to both ends of the winding shaft, and the inner spring type with the winding shaft mounted inside the winding shaft with the winding shaft being a hollow shaft. There is.

As shown in FIG. 3, an outer spring type tonneau cover device 40 has outer ends of a spiral spring 43 fixed to side covers 41, 42 fixed to left and right frames of a vehicle, respectively. An inner end of a spiral spring 43 is fixed to a tonneau cover winding shaft 44 provided between the tonneau cover, and one end of a tonneau cover 45 is fixed to an outer peripheral surface of the tonneau cover winding shaft 44. Reference numeral 46 denotes a housing 46 that houses the tonneau cover 45.

In the tonneau cover device 40, when the tonneau cover 45 is pulled out, the diameter of the spiral spring 43 is reduced. And
When winding the tonneau cover 45, the tonneau cover take-up shaft 44 rotates by the restoring force of the spiral spring 43, and the tonneau cover 45
Is automatically wound up.

As shown in FIG. 4, an inner spring type tonneau cover device 50 has a hollow tonneau cover take-up shaft 54 containing a coil spring 53 rotatably attached to side covers 51 and 52. The tonneau cover winding shaft 54 is a side cover
A shaft 51a attached to the 51 and a shaft member 60 attached to the side cover 52 are rotatably mounted. Inside the tonneau cover winding shaft 54, the cylinder 55 is rotatably covered on a spring shaft 57 fixedly mounted on the mounting shaft 51a in a cantilever manner, and a coil spring 53 is mounted on the outer peripheral surface of the cylinder 55. is there. One end 53a of the coil spring 53 is fixed to a hollow tonneau cover winding shaft 54, and the other end 53b is connected to a free end of the spring shaft 57.
One end of the tonneau cover 58 is fixed to the outer peripheral surface of the tonneau cover winding shaft 54. Reference numeral 59 denotes a housing body for housing the tonneau cover 58.

In the tonneau cover device 50, when the tonneau cover 58 is pulled out, the diameter of the coil spring 53 is reduced. And
When winding the tonneau cover 58, the tonneau cover take-up shaft 54 rotates by the restoring force of the coil spring 53, and the tonneau cover 58
Is automatically wound up.

[0009]

The outer spring type tonneau cover device 40 has a simple structure, a small number of parts, and can smoothly wind up the tonneau cover 45. On the other hand, since the winding spiral spring 43 is housed in the side covers 41 and 42, there is a problem that it is difficult to reduce the size.

On the other hand, in the inner spring type tonneau cover device 50, the coil spring 53 for winding is provided inside the tonneau cover winding shaft 54, so that the structure can be made compact. On the other hand, there is a large number of parts because there is a PVC body 55 and a spring shaft 57 to mitigate the contact noise between the coil spring 53 and the spring shaft 57.
There are many assembling steps such as inserting 55 between the coil spring 53 and the spring shaft 57. Further, there is another problem that the spring shaft 57 inserted into the tonneau cover winding shaft 54 vibrates inside the tonneau cover winding shaft 54 due to the vibration of the engine to generate abnormal noise. As a structural problem, the tonneau cover 58
When winding up, there is a possibility that the outer peripheral surface of the tubular body 55 made of vinyl chloride may bite between the pitches of the coil springs 53, and if so, the effective length of the coil springs 53 becomes short and the tonneau cover 58 cannot be pulled out. Also, when the tonneau cover 58 is pulled out, the coil spring 53 may be deformed beyond the elastic range and the coil spring 53 may be damaged.

In recent years, as automobiles have become more compact and lighter, the tonneau cover device is no exception, and the inner spring type tonneau cover device, which can be made more compact, is becoming mainstream.

Similarly, other sheet winding devices are required to be compact and lightweight, and the inner spring type is becoming mainstream.

Accordingly, the present invention is to reduce the number of parts of an inner spring type sheet take-up device, to reduce the weight, and to eliminate inconveniences such as generation of abnormal noise and biting of a cylindrical body. Aim.

[0014]

According to a first aspect of the present invention, there is provided a sheet winding device comprising: a resin support provided on both left and right sides; and a hollow sheet winding shaft rotatably mounted between the supports. A sheet having one end fixed to the outer peripheral surface of the sheet take-up shaft, and a coil spring disposed in the sheet take-up shaft. And a coil spring configured to wind the sheet by rotating the sheet winding shaft in the sheet winding device, wherein the sheet winding device is mounted inside the sheet winding shaft on a surface opposed to the left and right supports. A mounting shaft that rotatably supports the take-up shaft is integrally formed, and one end of the coil spring is attached to a tip of one of the mounting shafts that rotatably supports one end of the sheet take-up shaft. Middle part of The other end, characterized in that fitted with the other end of the coil spring.

Here, the "support" is a member having a mounting shaft for slidably mounting the end of the sheet winding shaft.

According to a second aspect of the present invention, in the sheet winding device, a resin-made sliding ring that slides with respect to the mounting shaft is fixed to inner circumferential surfaces of both ends of the sheet winding shaft. Features.

The sheet winding device is not limited to a tonneau cover device, and can be widely applied to a device for winding and storing a sheet, such as a sunshade device and a blind device.

According to a third aspect of the present invention, there is provided a tonneau cover device, comprising: a resin side cover attached to both left and right sides of a vehicle luggage compartment; a hollow tonneau cover winding shaft rotatably mounted between the side covers; A tonneau cover having one end fixed to the outer peripheral surface of the shaft, and a coil spring disposed in the tonneau cover winding shaft, wherein when the tonneau cover is pulled out, an elastic force is accumulated, and the tonneau cover winding shaft is restored by the restoring force. A tonneau cover device comprising a coil spring configured to rotate and wind the tonneau cover, wherein the tonneau cover winding shaft is rotatably mounted on a surface opposed to the left and right side covers by being mounted inside the tonneau cover winding shaft. The shaft to be mounted is integrally molded, and one end of the tonneau cover winding shaft is rotatably supported. Attaching one end of a coil spring, the middle portion or the other end portion of the tonneau cover winding shaft, characterized in that fitted with the other end of the coil spring.

The tonneau cover device according to a fourth aspect of the present invention is characterized in that a resin sliding ring that slides with respect to the mounting shaft is fixed to the inner peripheral surfaces of both ends of the tonneau cover winding shaft. .

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which a sheet winding device of the present invention is applied to a tonneau cover device 10 will be described below.

As shown in FIG. 1, the tonneau cover device 10 includes side covers 11, 12 as support members attached to the left and right sides of the vehicle luggage compartment, and a hollow tonneau cover take-up shaft 13 rotatably attached to the side cover. And attached to the inside of the tonneau cover winding shaft 13, and one end 14 a is attached to the side cover 11.
And a coil spring 14 having the other end attached to a tonneau cover winding shaft 13.

The side covers 11 and 12 are provided with mounting shafts 15 and 16 which are slidably mounted on the ends of the tonneau cover take-up shaft 13 by a resin member. The mounting shaft of the left side cover 11 is provided.
15 is provided with a mounting portion 17 to which one end 14a of the coil spring 14 is mounted. A projection for hooking one end of the coil spring 14 is integrally formed at the tip of the mounting portion 17.

The tonneau cover winding shaft 13 is a hollow shaft member made of metal. A pin member 1 for attaching the other end 14b of the coil spring 14 is provided at an intermediate portion of the tonneau cover winding shaft 13.
8 is provided to pierce the tonneau cover winding shaft 13 in the radial direction. This pin member 18 is connected to the other end 14b of the coil spring 14.
A mounting groove 18a is formed for hooking and fixing. Both ends of the tonneau cover take-up shaft 13 are mounted on mounting shafts 15 and 16 of the side covers 11 and 12 by mounting sliding rings 19 and 20 made of resin. The sliding rings 19 and 20 are made of resin, and are members that reduce wear of the mounting shafts 15 and 16 of the side covers 11 and 12. The tonneau cover 21 has one end fixed to the tonneau cover take-up shaft 13, and the left and right side covers 11, 12
A cylindrical cover 22 that constitutes a housing portion of the tonneau cover 21
Is provided.

In the tonneau cover device 10, when the tonneau cover 21 is pulled out, the tonneau cover take-up shaft 13 rotates and accumulates elastic force in the coil spring 14, and when the tonneau cover 21 is wound up (when the tongue cover 21 that is pulled out is opened). The tonneau cover take-up shaft 13 is rotated (in the direction in which the tonneau cover is wound) by the restoring force of the coil spring 14, and the tonneau cover 21 is automatically wound.

According to the tonneau cover device 10, one end of the coil spring 14 is directly attached to the side cover,
Since the other end of 14 is attached to the tonneau cover winding shaft 13, a conventional inner spring type tonneau cover device 50 (see FIG. 4)
The spring shaft 57 to which the other end 53b of the coil spring 53 is attached and the tubular body 55 made of vinyl chloride become unnecessary, and the number of parts can be reduced and the weight can be reduced. Also, when the tonneau cover 21 is pulled out, the outer peripheral surface of the tubular body 55 made of vinyl chloride bites between the pitches of the coil springs 53, or the spring shaft 57 vibrates in the tonneau cover winding shaft 53 due to the vibration of the engine. The problem of generating abnormal noise is eliminated.

Further, the tonneau cover take-up shaft 13 is mounted on the mounting shaft 15 provided integrally with the left side cover 11, and one end of the coil spring 14 is mounted. The structure for attaching the spring 14 is simple, the number of parts can be reduced, and the workability of the work for attaching the coil spring 14 is improved.

Although the embodiment in which the sheet winding device of the present invention is applied to a tonneau cover device has been described above, the present invention is not limited to the above.

For example, a pin member 1 for hooking an end 14b of a coil spring 14 provided at an intermediate portion of the tonneau cover winding shaft 13
Instead of 8, as shown in FIG. 2 (a), an engaging portion 25 capable of hooking the end portion 14b of the coil spring 14 and dents 26 at a plurality of (for example, three) circumferential positions are provided. Fitting member
27 is housed in the tonneau cover winding shaft 13, and FIG.
As shown in the figure, the tonneau cover take-up shaft 13 is crushed in a plurality of circumferential directions (for example, three directions) in the inner diameter direction, so that the end surface 13 of the tonneau cover take-up shaft 13
a into the tongue cover winding shaft 13
, The end of the coil spring 14 may be fixed to the tonneau cover winding shaft 13.

In addition, bearings may be provided at both ends of the tonneau cover winding shaft in place of the sliding ring made of resin in order to make the rotation of the tonneau cover winding shaft smooth.

The above-mentioned tonneau cover device is one form of a sheet winding device, and can be applied to other sheet winding devices such as a sunshade device and a blind device.

[0031]

According to the first aspect of the present invention, there is provided a sheet winding device in which the left and right supports oppose each other and are mounted inside the sheet winding shaft to rotatably support the sheet winding shaft. And one end of the coil spring is attached to the tip of one of the mounting shafts rotatably supporting one end of the sheet winding shaft, and the coil spring is attached to the middle or the other end of the sheet winding shaft. Since the other end is attached, the coil spring is built into the sheet take-up shaft, which makes it possible to reduce the size. The spring shaft is the same as the conventional inner spring type sheet take-up device (see FIG. 4). And the need to reduce the number of parts and the weight can be reduced.In addition, when the sheet is pulled out, the cylinder made of vinyl chloride gets stuck in the coil spring. Inside the sheet winding shaft This eliminates the problem of vibration and abnormal noise.

In the sheet winding device according to the second aspect, a resin sliding ring that slides with respect to the mounting shaft is fixed to the inner peripheral surfaces of both ends of the sheet winding shaft. Wear of the mounting shaft of the side cover can be reduced.

According to a third aspect of the present invention, there is provided a tonneau cover device, comprising: a resin side cover attached to the left and right sides of a vehicle luggage compartment; a hollow tonneau cover winding shaft rotatably mounted between the side covers; A tonneau cover having one end fixed to the outer peripheral surface of the shaft, and a coil spring disposed in the tonneau cover winding shaft, wherein when the tonneau cover is pulled out, an elastic force is accumulated, and the tonneau cover winding shaft is restored by the restoring force. A tonneau cover device comprising a coil spring configured to rotate and wind the tonneau cover, wherein the tonneau cover winding shaft is rotatably mounted on a surface opposed to the left and right side covers by being mounted inside the tonneau cover winding shaft. The shaft to be mounted is integrally molded, and one end of the tonneau cover winding shaft is rotatably supported. Attaching one end of a coil spring, the middle portion or the other end portion of the tonneau cover winding shaft, since attaching the other end of the coil spring, it is internal coil spring within tonneau cover winding the axis can be made compact,
Unlike the conventional inner spring type tonneau cover device 50 (see FIG. 4), the spring shaft 57 and the vinyl chloride cylinder 55 are not required.
The number of parts can be reduced and the weight can be reduced.In addition, when the tonneau cover is pulled out, the PVC sleeve 55 bites into the coil spring 53, and the spring shaft 57 becomes the tonneau take-up shaft due to engine vibration. The problem of generating abnormal noise by vibrating in 53 is eliminated.

In the tonneau cover device according to the fourth aspect, a resin-made sliding ring that slides with respect to the mounting shaft is fixed to the inner peripheral surfaces of both ends of the tonneau cover winding shaft.
Wear of the mounting shaft of the side cover can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a tonneau cover device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a tonneau cover device according to another embodiment of the present invention.

FIG. 3 is a cross-sectional view of a conventional outer spring type tonneau cover device.

FIG. 4 is a cross-sectional view of a conventional inner spring type tonneau cover device.

[Explanation of symbols]

 Reference Signs List 10 tonneau cover device 11, 12 side cover 13 tonneau cover take-up shaft 14 coil spring 15, 16 mounting shaft 17 mounting portion 18 pin member 18a mounting groove 19, 20 sliding ring 21 tonneau cover 25 projection 26 recess 27 fitting member

Claims (4)

[Claims] 1. A support made of resin disposed on both left and right sides, a hollow sheet take-up shaft rotatably mounted between the supports, and a sheet having one end fixed to an outer peripheral surface of the sheet take-up shaft. And a coil spring disposed in the sheet take-up shaft, wherein when the sheet is pulled out, elastic force is accumulated, and the sheet take-up shaft is rotated by the restoring force to take up the sheet. In a sheet winding device including a coil spring, a mounting shaft that is mounted inside the sheet winding shaft and rotatably supports the sheet winding shaft is integrally formed on a surface opposed to the left and right supports. Attach one end of the coil spring to the tip of one mounting shaft that rotatably supports one end of the sheet winding shaft, and attach the other end of the coil spring to the middle or other end of the sheet winding shaft. Characteristic Sheet winding device. 2. A sheet winding device according to claim 1, wherein a sliding ring made of resin which slides on said mounting shaft is fixed to inner peripheral surfaces of both ends of said sheet winding shaft. Taking device. 3. A side cover made of resin to be mounted on both left and right sides of a vehicle luggage compartment, a hollow tonneau cover winding shaft rotatably mounted between the side covers, and one end fixed to an outer peripheral surface of the tonneau cover winding shaft. A tonneau cover and a coil spring disposed in the tonneau cover take-up shaft, the elastic force being accumulated when the tonneau cover is pulled out,
A tonneau cover device comprising: a coil spring configured to wind the tonneau cover by rotating the tonneau cover winding shaft with the restoring force, wherein the tonneau cover is mounted inside the tonneau cover winding shaft on a surface opposed to the left and right side covers. A mounting shaft for rotatably supporting the take-up shaft is integrally formed, and one end of the coil spring is attached to a tip of one of the mounting shafts for rotatably supporting one end of the tonneau cover take-up shaft. A tonneau cover device, wherein the other end of the coil spring is attached to an intermediate portion or the other end of the shaft. 4. The tonneau cover device according to claim 3, wherein a sliding ring made of resin that slides with respect to the mounting shaft is fixed to inner peripheral surfaces of both ends of the tonneau cover winding shaft. .