JP7216273B2 - Resin panel - Google Patents

Description

The present invention relates to a resin panel. INDUSTRIAL APPLICABILITY The resin panel of the present invention can be used as a luggage compartment board of a vehicle.

Regarding a resin panel used for a luggage compartment board (also called a deck board or a luggage board) of a vehicle, for example, in Patent Document 1, a strap for gripping when opening and closing the panel is erected on the front side and the back side. A resin panel is disclosed.

Japanese Patent No. 5802809

However, in the resin panel described in Patent Document 1, the structure of the strap is complicated, and there is a problem that it takes time and effort to manufacture. In addition, since the user needs to grip the strap standing upright on the end face, there is room for improvement in the operability when opening and closing the panel.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a resin panel having a simple structure and high operability.

According to the present invention, a resin panel provided in a luggage compartment of a vehicle includes a plate-shaped main body and first and second straps, the first strap being the first and second straps separated from each other. The second strap is fixed to the back side of the main body by a fixing part, has a first finger hook part provided between the first and second fixing parts, and has one end fixed to the back side of the main body and the other end. A resin panel is provided in which a ring portion provided on the side protrudes to the surface side of the main body portion, and the ring portion constitutes a second finger hook portion.

In the configuration of the present invention, since the resin panel is provided with the first finger hooking portion on which a finger can be hooked from the back side of the resin panel and the second finger hooking portion on which a finger can be hooked from the front side of the resin panel, the user can use the first finger and the second finger hook. 2 The resin panel can be opened and closed by placing a finger on the finger hook. As a result, it is possible to provide a resin panel with a simple structure and high operability.

Various embodiments of the present invention are illustrated below.
Preferably, the ring portion protrudes toward the surface through a through hole provided in the body portion.

Preferably, the body portion has a recess on the back surface, and the through hole is provided in the recess.

Preferably, the first and second fixing portions are arranged so as to sandwich the recess.

Preferably, the recessed portion is a first recessed portion, the body portion includes a second recessed portion, and the first and second fixing portions are arranged to sandwich the second recessed portion.

Preferably, the second recess is arranged adjacent to the first recess.

Preferably, said first and second straps comprise separate parts of one strap.

FIG. 1A is a perspective view of a resin panel 10 according to the first embodiment of the invention. FIG. 1B is an enlarged view of region D of FIG. 1A. FIG. 2 is a cross-sectional view taken along line XX in FIG. 1B. FIG. 3 is a diagram showing a molding machine 60 that can be used for manufacturing the resin panel 10; FIG. 4 is a diagram illustrating a method of manufacturing the resin panel 10 using the molding machine 60; FIG. 5A is a view corresponding to FIG. 1B of the resin panel 20 of the second embodiment. FIG. 5B is a YY cross-sectional view in FIG. 5A. FIG. 6A is a view corresponding to FIG. 1B of the resin panel 30 of the third embodiment. FIG. 6B is a ZZ sectional view in FIG. 6A.

Embodiments of the present invention will be described below. Various features shown in the embodiments shown below can be combined with each other. In addition, the invention is established independently for each characteristic item.

1. First Embodiment 1-1. Configuration of Resin Panel 10 As shown in FIG. 1A, a resin panel 10 according to the first embodiment of the present invention is formed in a rectangular shape in plan view. The resin panel 10 includes a plate-like main body 1 and a finger strap S. The resin panel 10 is used, for example, as a luggage compartment board in the luggage compartment of a vehicle.

The main body 1 in this embodiment is made of a resin molding and includes a core material 13 (not shown in FIG. 2A, see FIGS. 3 and 4). The core material 13 is made of foam or the like. As a result, the body portion 1 is lightweight and has high strength.

As shown in FIG. 1B, the finger strap S includes a first strap S1 and a second strap S2. In this embodiment, the first strap S1 and the second strap S2 are connected to each other. The finger strap S is made of a strip of any material such as leather, organic fiber, or non-woven fabric.

The first strap S1 is fixed to the mounting surface 1b provided on the rear surface 1a side of the main body 1 with a first fixing portion 4a and a second fixing portion 4b that are spaced apart from each other. In this embodiment, fasteners such as rivets are used for the first fixing portion 4a and the second fixing portion 4b. As shown in FIG. 2, the first fixing portion 4a and the second fixing portion 4b are attached to a mounting surface 1b provided lower than the back surface 1a so that the top portions thereof do not protrude above the back surface 1a. A first finger hook portion 2a is provided between the first fixing portion 4a and the second fixing portion 4b.

One end of the second strap S2 is fixed to the mounting surface 1b provided on the back surface 1a side, and the ring portion R provided on the other end protrudes to the surface side. Here, the ring portion R constitutes the second finger hook portion 2b.

More specifically, the main body 1 has a first recess 3a and a second recess 3b formed adjacently on the rear surface 1a. As shown in FIG. 2, a through hole 5a is provided in the bottom portion 5 of the first concave portion 3a.

The first fixing portion 4a and the second fixing portion 4b are arranged so as to sandwich the second concave portion 3b. Thereby, the first finger hooking portion 2a is provided between the first fixing portion 4a and the second fixing portion 4b so as to straddle the second concave portion 3b. Here, the width of the second concave portion 3b in the direction of the X arrow (hereinafter simply referred to as the width) is configured to be larger than the width of the first strap S1. Specifically, the width of the second recess 3b is preferably two to four times the width of the first strap S1. Such a configuration makes it easier for the user to put his finger on the first strap S1. On the other hand, the ring portion R provided on the other end side of the second strap S2 protrudes toward the surface 1c through the through hole 5a provided in the bottom portion 5 of the first concave portion 3a, and constitutes the second finger hook portion 2b. ing.

Although the details will be described later, since the bottom portion 5 is formed by pressurizing the resin by the projecting portion 71a provided on the mold 71 (see FIGS. 3 and 4), the resin is compressed and the strength is increased. there is As a result, it is possible to form a high-strength through hole 5a.

With such a configuration, when the user operates the resin panel 10 from the back surface 1a side, the user can put his/her finger on the first finger hook portion 2a to operate the resin panel 10 from the front surface 1c side. When operating 10, it can be operated by placing a finger on the second finger hooking portion 2b. In addition, since the first strap S1 and the second strap S2 are connected to each other, it is possible to easily manufacture the resin panel 10 using a single finger strap S, which reduces the number of parts in manufacturing. can be reduced.

Moreover, by adopting such a configuration, it is possible to ensure the fixing strength of the first strap S1 and the second strap S2. That is, when the user operates the resin panel 10 from the surface 1c side, the user puts his/her finger on the second finger hook portion 2b and pulls the second strap S2 toward the surface side. In this case, tension is applied to the second fixing portion 4b in the shearing direction, and the force applied in the pulling direction is reduced.

Further, when the user operates the resin panel 10 from the rear surface 1a side, the user puts his/her finger on the first finger hooking portion 2a and pulls the first strap S1 toward the rear surface side. In this case, since the first strap is fixed by the first fixing portion 4a and the second fixing portion 4b, the tension is dispersed in the shearing direction of the first fixing portion 4a and the second fixing portion 4b. In this way, it is possible to reduce the force in the pull-out direction of the first fixing portion 4a and the second fixing portion 4b, and secure the fixing strength of the first strap S1 and the second strap S2.

1-2. Configuration of Molding Machine 60 A molding machine 60 for molding the main body 1 will be described with reference to FIG. As shown in FIG. 3 , molding machine 60 includes hopper 62 , extruder 63 , accumulator 67 and T-die 68 . The extruder 63 and the accumulator 67 are connected via a connecting pipe 75 . The accumulator 67 and the T-die 68 are connected via a connecting pipe 77 . Each configuration will be described in detail below.

・Hopper 62, extruder 63
The hopper 62 is used to charge the raw material resin 61 into the cylinder 63 a of the extruder 63 . Although the form of the raw material resin 61 is not particularly limited, it is usually in the form of pellets. The raw material resin is, for example, a thermoplastic resin such as polyolefin, and examples of polyolefin include low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymers and mixtures thereof. The raw material resin 61 may include a recycled raw material produced by pulverizing the large burrs 26 b with the pulverizer 18 . The raw material resin 61 is fed from the hopper 62 into the cylinder 63a, and then heated in the cylinder 63a to be melted into a molten resin. Further, it is conveyed toward the tip of the cylinder 63a by the rotation of the screw arranged in the cylinder 63a. The screw is arranged in the cylinder 63a, and conveys the molten resin while kneading it by its rotation. A gear device is provided at the proximal end of the screw, and the screw is rotationally driven by the gear device.

・Accumulator 67, T-die 68
The raw material resin is extruded from the resin extrusion port of the cylinder 63 a and injected into the accumulator 67 through the connecting pipe 75 . The accumulator 67 has a cylinder 67a and a piston 67b slidable inside the cylinder 67a, and the molten resin 61a can be stored in the cylinder 67a. By moving the piston 67b after a predetermined amount of the molten resin 61a is stored in the cylinder 67a, the molten resin 61a is extruded through the connecting pipe 77 from a slit provided in the T die 68 and is allowed to hang down to be in a molten state. First and second resin sheets 73a and 73b are formed.

・Molds 71 and 72
Resin sheets 73 a and 73 b are guided between molds 71 and 72 . The molds 71 and 72 are separable at the parting surfaces that come into contact when the molds are closed, and the main body portion 1 is formed by the molds 71 and 72 . That is, in the molding process, the body portion 1 is formed using a pair of separable molds 71 and 72 .

The mold 71 is provided with a large number of vacuum suction holes (not shown), so that the resin sheet 73a can be vacuum-sucked and formed into a shape along the inner surface 71b of the cavity of the mold 71. ing. A pinch-off portion 71c is provided to surround the cavity. The mold 71 is formed with protrusions 71 a for forming the recesses 3 a and 3 b of the main body 1 .

The mold 72 is provided with a large number of vacuum suction holes (not shown), so that the resin sheet 73b can be vacuum-sucked and formed into a shape along the inner surface 72b of the cavity of the mold 72. ing. A pinch-off portion 72c is provided to surround the cavity.

1-3. Method for manufacturing resin panel 10

<Details of molding process>
A molding process for the body portion 1 will be described with reference to FIG. The molding process includes, for example, a hanging process, a shaping process, a core material welding process, and a mold closing process.

Drooping Process In the drooping process, as shown in FIG. 4, resin sheets 73a and 73b formed by extruding the molten resin 61a through the slit of the T-die 68 and letting it droop are suspended between the molds 71 and 72. FIG. The resin sheet 73 a is suspended between the core material 13 and the mold 71 . The resin sheet 73b is suspended between the insertion device 9 and the mold 72. As shown in FIG. In this embodiment, direct vacuum forming is performed using the resin sheets 73a and 73b extruded from the T-die 68 as they are, so the resin sheets 73a and 73b may be cooled to room temperature and solidified before forming. Also, the solidified resin sheets 73a and 73b are not heated before molding.

Shaping Step In the shaping step, the resin sheets 73a and 73b are vacuum-sucked by the molds 71 and 72 to shape the resin sheets 73a and 73b. In the mold 71, the resin sheet 73a is formed into a shape along the contour of the inner surface 71b of the cavity. The resin sheet 73b is formed into a shape along the inner surface 72b of the cavity. The timing of shaping the resin sheets 73a and 73b may be different. good.

- Core Material Welding Process In the core material welding process, the core material 13 is welded to the resin sheet 73a. The core material 13 can be welded to the resin sheet 73a by moving the insertion device 9 toward the resin sheet 73a. After the core material 13 is welded to the resin sheet 73a, the inserting device 9 is moved to a position outside the moving trajectories of the molds 71 and 72.

The timing of placing the core material 13 between the resin sheets 73a and 73b is not limited, and the core material 13 may be placed between the resin sheets 73a and 73b in the hanging process or the shaping process. Also, the core material 13 may be welded to the resin sheet 73b first.

·Mold Closing Process In the mold closing process, the molds 71 and 72 are closed by moving the molds 71 and 72 in the directions of arrows C1 and C2 in FIG. As a result, the resin sheets 73a and 73b are compressed and welded at the portions corresponding to the protrusions 71a (corresponding to the recesses 3a and 3b) of the main body 1. As shown in FIG. Thereby, the strength of the bottom portion 5 of the concave portion 3a is improved.

As described above, in the method for manufacturing the resin panel 10 according to the present embodiment, the protrusions 71a provided on the mold 71 pressurize the body portion 1 of the resin panel 10 so that the first concave portions 3a and the second 2. Form recesses 3b. By doing so, the resin sheet is compressed by the projecting portion 71a of the mold 71, thereby increasing the strength of the bottom portion 5 of the first concave portion 3a. As a result, it is possible to easily form the through hole 5a.

2. Second Embodiment A resin panel 20 according to a second embodiment will be described with reference to FIGS. 5A and 5B. In the resin panel 20, the recess 3 is provided on the back surface 1a of the main body 1, and the first strap S1 and the second strap are made of different straps.

As shown in FIGS. 5A and 5B, the first fixing portion 4a and the second fixing portion 4b of the first strap S1 are arranged so as to sandwich the recess 3 therebetween. Thereby, the first finger hooking portion 2a is provided so as to straddle the concave portion 3 between the first fixing portion 4a and the second fixing portion 4b. On the other hand, the ring portion R provided on the other end side of the second strap protrudes toward the surface 1c through the through hole 5a provided in the bottom portion 5 of the recess 3 to constitute the second finger hook portion 2b.

Even with such a configuration, the same effects as those of the above embodiment can be obtained. That is, when the user operates the resin panel 10 from the back surface 1a side, the user can put his/her finger on the first finger hook portion 2a to operate the resin panel 10, and when operating the resin panel 10 from the front surface 1c side, It becomes possible to operate by placing a finger on the second finger hook portion 2b.

3. Third Embodiment A resin panel 30 according to a third embodiment will be described with reference to FIGS. 6A and 6B.

As shown in FIGS. 5A and 5B, in the resin panel 30, the first fixing portion 4a and the second fixing portion 4b of the first strap S1 are arranged on the back surface 1a of the main body portion 1. As shown in FIGS. One end of the second strap S2 is fixed to the back surface 1a by a rivet 7, and the ring portion R provided on the other end passes through the through hole 5a provided in the main body portion 1, and is formed in a ring shape on the front surface 1c side. Protruding.

Even with such a configuration, the same effects as those of the above embodiment can be obtained. That is, when the user operates the resin panel 10 from the back surface 1a side, the user can put his/her finger on the first finger hook portion 2a to operate the resin panel 10, and when operating the resin panel 10 from the front surface 1c side, It becomes possible to operate by placing a finger on the second finger hook portion 2b.

4. Other Embodiments Application of the present invention is not limited to the above embodiments. For example, in Embodiment 1, the second recess 3b is formed adjacent to the first recess 3a, but the present invention is not limited to this example. That is, the configuration may be such that the second concave portion 3b is not formed. Even in this case, by arranging the first fixing portion 4a and the second fixing portion 4b of the first strap S1 on the back surface 1a of the main body portion 1, it is possible to provide the first finger hook portion 2a.

Further, in the above-described embodiment, the body portion 1 is formed with the through hole 5a passing through the back surface 1a side and the front surface 1c side, and the ring portion R of the second strap S2 passes through the through hole 5a to the surface 1c side. Although prominent, it is not limited to this example. For example, the second strap S2 is configured such that one end side is fixed to the back surface 1a and arranged along the outer surface of the resin panel 10 so that the ring portion R provided at the other end protrudes toward the surface 1c side. You may

Also, in the above embodiment, the molding process is performed using two resin sheets, but the present invention is not limited to this example. For example, the main body 1 may be molded by blow molding using a cylindrical parison.

Reference Signs List 1: main body portion 1a: back surface 1b: mounting surface 1c: front surface 2: finger strap 2a: first finger hooking portion 2b: second finger hooking portion 3: concave portion 3a: first concave portion 3b: second concave portion 4a: first fixing portion 4b: Second fixing part 5: Bottom part 5a: Through hole 7: Rivet 9: Insertion device 10: Resin panel 13: Core material 18: Crusher 20: Resin panel 26b: Large burr 30: Resin panel 60: Molding Machine 61 : Raw resin 61a : Molten resin 62 : Hopper 63 : Extruder 63a : Cylinder 67 : Accumulator 67a : Cylinder 67b : Piston 68 : T-die 71 : Mold 71a : Projection 71b : Inner surface 71c : Pinch-off part 72 : Gold Mold 72b: inner surface 72c: pinch-off portion 73a: first resin sheet 73b: second resin sheets 75, 77: connecting pipe S: finger strap S1: first strap S2: second strap

Claims (5)

A resin panel provided in the luggage compartment of a vehicle,
comprising a plate-like main body and first and second straps,
The first strap is fixed to the back side of the main body by first and second fixing parts spaced apart from each other, and a first finger hook part is provided between the first and second fixing parts,
The second strap has one end fixed to the back side of the main body, a ring provided on the other end protrudes to the front side of the main body, and the ring constitutes a second finger hook ,
the ring portion protrudes toward the front surface through a through hole provided in the main body;
The main body portion has a concave portion on the back surface,
The through hole is provided in the recess,
The resin panel, wherein the first and second fixing portions are arranged to sandwich the concave portion . The resin panel according to claim 1 ,
The recess is a first recess,
The body portion includes a second recess,
The resin panel, wherein the first and second fixing portions are arranged to sandwich the second concave portion. A resin panel provided in the luggage compartment of a vehicle,
comprising a plate-like main body and first and second straps,
The first strap is fixed to the back side of the main body by first and second fixing parts spaced apart from each other, and a first finger hook part is provided between the first and second fixing parts,
The second strap has one end fixed to the back side of the main body, a ring provided on the other end protrudes to the front side of the main body, and the ring constitutes a second finger hook,
the ring portion protrudes toward the front surface through a through hole provided in the main body;
The main body portion has a concave portion on the back surface,
The through hole is provided in the recess,
The recess is a first recess,
The body portion includes a second recess,
The resin panel, wherein the first and second fixing portions are arranged to sandwich the second concave portion. The resin panel according to claim 2 or claim 3 ,
The resin panel, wherein the second recess is arranged adjacent to the first recess. The resin panel according to any one of claims 1 to 4 ,
The resin panel, wherein the first and second straps are separate parts of one strap.

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