JP6571944B2 - Floor mat for wheelchair mobile vehicle and manufacturing method thereof - Google Patents

Description

  The present invention relates to a floor mat for a wheelchair moving vehicle in which an expansion space that enables a wheelchair to be seated in a seated state is provided at the rear of a passenger compartment, and a manufacturing method thereof.

  In general, this type of floor mat is composed of resin and fiber, and is formed into a three-dimensional shape corresponding to the mounting site by thermoforming using a mold (Patent Document 1).

  Although it is for construction machines, a method of combining a plurality of parts into one floor mat is disclosed in Patent Document 2.

Japanese Patent Laid-Open No. 62-146744 Japanese Patent Laid-Open No. 11-20531

  In a wheelchair mobile vehicle that accommodates a seated wheelchair in the rear part of the passenger compartment, the floor surface of the rear part of the passenger compartment is made lower than that of a general vehicle to expand the space (extended space).

  When the center portion of the floor surface is lowered, the left and right portions of the floor surface on which the rear wheels are located become relatively high, and a large step is generated between them. In addition, in order to make it easy to accept a wheelchair, there is a demand for making the width of the expansion space as wide as possible. Therefore, the corner of the step tends to have an angular shape.

  As a result, in the case of a wheelchair mobile vehicle, the floor mat attached to the floor surface of the passenger compartment has an angular shape with large irregularities compared to a general automobile, which makes it difficult to mold.

  In that respect, as in Patent Document 2, if the floor mat is divided into a plurality of parts and combined, the parts can be molded for each part, so that even a floor mat that is difficult to be molded can be manufactured.

  However, if the number of parts is increased, the number of molds increases accordingly, resulting in an increase in manufacturing cost. If the number of parts is reduced, molding becomes difficult and molding defects are likely to occur.

  Furthermore, in the case of a floor mat for a wheelchair mobile vehicle, the wheelchair travels on the floor mat at a high frequency. For this reason, when the floor mat is composed of a plurality of parts, there is a problem that the joints may interfere with the running of the wheelchair, and there is a problem that the joints are liable to be bent due to an impact when the wheelchair gets on and off.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a floor mat for a wheelchair mobile vehicle that can be stably manufactured at low cost and is functionally superior.

  The present invention is a floor mat for a wheelchair mobile vehicle in which an expansion space that enables a wheelchair to be seated in a seated state is provided at the rear of the passenger compartment.

  The floor mat includes a pair of side mat portions covering left and right floor surfaces in the extension space, a rear mat portion covering a floor surface extending between the pair of side mat portions, and a floor surface extending in front of the extension space. And a front mat portion for covering.

  Each of the pair of side mat portions extends in the front-rear direction along the side surface of the expansion space, and extends from an upper surface portion located above the rear wheel and an inner edge of the upper surface portion. The inner side surface portion located on the front side, and the front end surface portion of each of the upper surface portion and the inner side surface portion. The front end surface portion located in front of the rear wheel and the lower edge of each of the inner side surface portion and the front end surface portion. And a flange portion projecting in a direction away from the rear wheel.

  The front mat portion and the rear mat portion are joined to the pair of side mat portions via the flange portion in a state of being integrally joined via a joining strip extending in the left-right direction, However, it penetrates between the pair of side mat portions.

  That is, this floor mat is composed of four parts divided into a pair of side mat part, rear mat part, and front mat part, and is formed by joining them together. Even if a side mat portion having a deep and square shape is included, it can be easily molded, and can be efficiently molded by concentrating on one mold as will be described later.

  Moreover, since the joining band extending in the left-right direction by joining the rear mat portion and the front mat portion is inserted between the pair of side mat portions, the front mat portion is structurally high in each side. The mat portion is joined via the inner corner portion of the front end portion and the flange portion, so that the strength and rigidity of the floor mat can be improved.

  The joining band may be positioned ahead of the position where the rear wheel of the wheelchair enters.

  Most of the load on the wheelchair is applied to the rear wheel. When the wheelchair gets on and off the wheel, the wheelchair gets over the joint zone, and a large impact is applied to the wheelchair and the joint zone may be swollen. On the other hand, if the joint band is positioned in front of the position where the rear wheel of the wheelchair enters, the rear wheel does not get over the joint band, so such a problem does not occur.

  In that case, it is preferable that the joining band is configured by overlapping a front edge portion of the rear mat portion on a rear edge portion of the front mat portion.

  In handling the wheelchair, the forward direction in which a load is easily applied to the front wheel of the wheelchair becomes easy to get over the joining zone, and the front wheel can come into contact with the front edge of the rear mat portion in the backward direction in which the front wheel is easily lifted. Therefore, even if the front wheel gets over the joining zone, it is possible to effectively prevent the occurrence of an impact or a sag.

  Such a floor mat is preferably manufactured by dividing into a plurality of parts and molding the parts together.

  That is, a part mold corresponding to the shape of each of the pair of side mat parts, the rear mat part, and the front mat part is formed in a single mold with a gap between each other in the arrangement at the time of joining. Each of the pair of side mat portions, the rear mat portion, and the front mat portion is molded at a time by molding a sheet-like mat material using a mold.

  If a mold is produced for each part, the cost of the mold will increase accordingly, but according to this manufacturing method, each part can be efficiently molded at one time and the manufacturing cost can be suppressed. .

  In particular, the part molds of the side mat portions may be molded in a state in which the pair of side mat portions are inclined in the left-right direction by inclining the inner edges of the left and right upper surface portions away from each other.

  If it does so, it will become easy to extract even if it is a side mat part of an angular shape with a deep depth after molding. In the corner portion of the boundary between the upper surface portion and the inner side surface portion, the direction in which the force is applied during pressing and the direction in which the mat material extends are shifted and do not coincide with each other, so that molding defects can be effectively suppressed.

  Furthermore, it is preferable to mold each part mold of the side mat portion so that the pair of side mat portions are inclined in the front-rear and left-right directions by inclining so that the upper surface portion is inclined rearward.

  If it does so, it will become easy to extract a front end surface part similarly to an inner surface part, and will also become easy to shape | mold. And also in the corner part of the boundary of an upper surface part and a front-end surface part, since the direction where a force is added at the time of a press and the extending direction of a mat | matte material do not correspond, a molding defect can be suppressed more effectively.

  According to the floor mat of the present invention, it is excellent in function and can be stably manufactured at a low cost.

It is a schematic perspective view which shows the wheelchair mobile vehicle to which this invention is applied. It is a schematic perspective view which shows a floor mat. It is an assembly drawing of a floor mat. It is a schematic sectional drawing in the XX line in FIG. It is a schematic plan view which shows the metal mold | die (concave mold) after shaping | molding. It is a schematic sectional drawing in the YY line in FIG. It is a schematic sectional drawing in the ZZ line in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the following description is merely illustrative in nature and does not limit the present invention, its application, or its use.

  FIG. 1 shows a wheelchair moving vehicle to which the present invention is applied (hereinafter also simply referred to as a vehicle 1).

  In this vehicle 1, a large space (extended space 2) is obtained at the rear part of the passenger compartment, and it is possible to get on the extended space 2 while one wheelchair is seated. Yes. In addition, a driver's seat and a passenger seat are installed at the front of the passenger compartment that extends in front of the expansion space 2, and a foldable rear seat may be installed behind them.

  At the rear end portion of the vehicle 1, a large entrance / exit 3 that leads to the expansion space 2 is provided, and a back door 4 that opens and closes the entrance / exit 3 is installed on the upper portion of the entrance / exit 3 so as to be swingable. . The wheelchair is loaded onto and unloaded from the vehicle 1 through the loading / unloading port 3, and a foldable slope 5 used at that time is installed below the loading / unloading port 3. FIG. 1 shows a use state in which the slope 5 is developed.

  An intermediate portion in the vehicle width direction on the floor surface of the expansion space 2 where the wheelchair gets on and off is lower than that of a general automobile, and its lateral width is also expanded to the limit (low floor portion 6). The rear portion of the low floor portion 6 is an inclined surface that descends rearward so as to be continuous with the developed slope 5 without a step.

  The rear wheels 7 are located on both the left and right sides of the low floor portion 6, and in order to avoid contact with these rear wheels 7, the high floor portions 8 bulging inward are formed on the left and right sides of the low floor portion 6. Is formed. A floor mat 10 is laid in the passenger compartment so as to cover the entire floor surface including the low floor portion 6 and the high floor portion 8.

(floor mat)
FIG. 2 shows the floor mat 10. The floor mat 10 is formed in a three-dimensional shape corresponding to the floor surface of the passenger compartment using a known mat material made of resin and fibers.

  The floor mat 10 has a pair of side mat portions 11, 11, a rear mat portion 12, and a front mat portion 13.

  The pair of side mat portions 11, 11 are portions that cover the left and right raised floor portions 8, and each side mat portion 11 is formed symmetrically. Each side mat portion 11 includes a substantially rectangular upper surface portion 11a extending in the front-rear direction along the side surface of the expansion space 2, an inner surface portion 11b extending from the inner edge of the upper surface portion 11a, and an upper surface portion 11a and an inner surface portion 11b. And a front end surface portion 11c that extends from each front end edge.

  The upper surface portion 11 a is positioned above the rear wheel 7, the inner side surface portion 11 b is positioned inward of the rear wheel 7, and the front end surface portion 11 c is positioned in front of the rear wheel 7. The upper surface portion 11a is substantially horizontal, and the inner side surface portion 11b and the front end surface portion 11c are substantially vertical. The rear portion of the inner side surface portion 11b is inclined downward toward the rear, and the rear end edge of the inner side surface portion 11b is larger than the front end edge.

  The rear mat portion 12 is a wide, substantially rectangular portion that covers the low floor portion 6. The rear mat portion 12 extends along the lower edges of the left and right inner side surface portions 11b, and the rear portion is inclined downward toward the rear. The corners of the boundary between the rear mat portion 12 and each inner side surface portion 11b are substantially orthogonal.

  The front mat portion 13 is a portion that covers the floor surface of the front portion of the passenger compartment, and extends substantially horizontally extending to the rear mat portion 12 and the left and right side mat portions 11. The left and right widths of the front mat portion 13 are formed larger than the rear mat portion 12.

  The floor mat 10 is composed of four parts divided into a pair of side mat portions 11, 11, a rear mat portion 12, and a front mat portion 13 so that molding can be easily performed. It is integrated by joining.

  FIG. 3 shows an exploded view of the floor mat 10.

  Each side mat portion 11 is provided with a substantially L-shaped flange portion 11d in plan view so as to be joined to the rear mat portion 12 and the front mat portion 13. The flange portion 11d projects in a direction away from the rear wheel 7 along the lower edge of each of the inner side surface portion 11b and the front end surface portion 11c.

  The length of the rear mat portion 12 in the front-rear direction is formed shorter than the length of the side mat portion 11 in the front-rear direction. In the center of the rear portion of the front mat portion 13, an overhanging portion 13 a that has the same width as the rear mat portion 12 and projects rearward is provided. And the front mat portion 13 and the rear mat portion 12 are integrated.

  Specifically, the front mating portion of the rear mat portion 12 is superposed on the rear edge portion of the overhang portion 13a via the hook and loop fastener 14 so as to be detachable. As a result, a band-shaped joining band 15 in which the rear mat part 12, the hook-and-loop fastener 14, and the front mat part 13 are laminated in order from the top extends in the left-right direction at the boundary portion between the front mat part 13 and the rear mat part 12. Is formed.

  The front mat portion 13 and the rear mat portion 12 thus integrated are detachably joined to the left and right side mat portions 11 and 11 by being superimposed on the flange portion 11d via the hook-and-loop fastener 14. .

  As a result, the joining band 15 enters between the left and right side mat portions 11, 11, and the front mat portion 13 is substantially the same as the inner corner of the front end portion of each side mat portion 11 that is structurally high in strength. It joins via the L-shaped flange part 11d, and the strength and rigidity of the floor mat 10 are improved.

  Since the rear mat portion 12 is positioned on the uppermost side in the joining band 15 and the left and right flange portions 11d and 11d, the rear mat portion 12 is easily peeled off from the front mat portion 13 and the left and right side mat portions 11 and 11. be able to.

  Therefore, a device such as a battery box or a fixture that requires access from the outside can be installed on the low floor portion 6, which is excellent in convenience.

  The joining band 15 is located ahead of the position where the rear wheel RW of the wheelchair enters.

  FIG. 4 shows the positional relationship between the fixed position of the wheelchair and the joining band 15. After the wheelchair is accommodated in the expansion space 2, it is fixed in place by hooking a belt with a hook and pulling it with a winch. In that case, the joining band 15 is arrange | positioned ahead of the position which the rear-wheel RW of a wheelchair can enter.

  Since most of the wheelchair load is applied to the rear wheel RW, when the wheelchair gets on and off, if the rear wheel RW gets over the joint zone 15, a large impact is applied to the wheelchair and the joint zone 15 may rise. There is also. On the other hand, in this floor mat 10, such a problem does not occur because the rear wheel RW of the wheelchair does not get over the joining band 15.

  Although it is preferable that the front wheel FW of the wheelchair does not get over the joining band 15, the front wheel FW may be in a position to get over. Since the load applied to the front wheel FW is small, and the load can be easily adjusted by tilting the wheelchair backward, there is no problem even if the front wheel FW passes over the joint band 15.

  Further, since the joining mat 15 is formed by overlapping the rear mat portion 12 on the front mat portion 13, the forward direction in which a load is easily applied to the front wheel FW is easily overcome in handling the wheelchair. The front edge portion of the rear mat portion 12 that is easy to roll is oriented in the backward direction that is easy to lift. Therefore, even if the joining band 15 is located behind the position where the front wheel FW enters, it is possible to effectively prevent the occurrence of an impact or a sag.

  (Floor mat manufacturing method)

  The parts of the pair of side mat portions 11, 11, the rear mat portion 12, and the front mat portion 13 constituting the floor mat 10 are formed by thermoforming the same sheet-like mat material using a mold. It is formed. Specifically, a mold having a cavity (part mold) in the shape of each part is produced, and a mat material is sandwiched and pressed in the cavity for a certain period of time while being heated.

  At this time, if a mold is produced for each part, the cost of the mold increases accordingly. Therefore, in the present embodiment, each part can be efficiently molded at one time with a single mold.

  FIG. 5 shows an outline of the mold 30. The mold 30 is composed of a pair of concave mold 30a and convex mold 30b that are abutted against each other. The abutting surface 31 corresponds to the shape of each of the pair of side mat portions 11, 11, the rear mat portion 12, and the front mat portion 13. The part mold 32 is formed. At the time of molding, the concave mold 30a and the convex mold 30b slide relative to each other in a direction orthogonal to the abutting surface 31, and press processing and punching processing are performed.

  The part molds 32 are arranged on the mold 30 in a state in which they are joined with a gap therebetween so as not to interfere with each other. By efficiently arranging each part mold 32 on the rectangular butting surface 31, the entire mold 30 is prevented from becoming excessively large.

  If a mat material is set in accordance with each part mold 32 and thermoformed, each of the pair of side mat portions 11, 11, the rear mat portion 12, and the front mat portion 13 can be molded at one time. In addition to the cost of manufacturing, the manufacturing cost can be suppressed. The opening portion and the outer edge portion may be cut simultaneously with the molding or after the molding.

  Furthermore, in the present embodiment, the part mold 32 of the side mat portion 11 is devised so as to suppress molding defects and facilitate molding.

  That is, since the side mat part 11 has a three-dimensional shape with a deep depth, it is difficult to remove after molding, and the mat material extends too much at the corner part, and the thickness becomes thin or torn. There is a risk that defective molding may occur.

  Therefore, in this mold 30, as shown in FIG. 6, each part mold 32 of the side mat portion 11 is formed so that the inner edges of the left and right upper surface portions 11 a and 11 a are inclined in a direction away from each other. The mat portions 11 and 11 are molded in a state inclined in the left-right direction. Specifically, the draft angle θw is set in the range of 3 ° to 45 ° on the inner side surface portion 11 b with respect to the sliding direction of the mold 30.

  By doing so, since both inner side surface parts 11b and 11b incline so that it may expand toward the extraction direction of the metal mold | die 30, each side mat part 11 after shaping | molding becomes easy to extract. In the corner portion of the boundary between the upper surface portion 11a and the inner side surface portion 11b, the direction in which the force is applied at the time of pressing and the extending direction of the mat material are shifted and do not coincide with each other, thereby effectively suppressing molding defects due to thinning of the corner portion. it can.

  Further, in this mold 30, as shown in FIG. 7, each part mold 32 of the side mat portion 11 is inclined so that the upper surface portion 11a is lowered rearward, so that the side mat portion 11 is not only left and right. Molding is performed in a tilted state in the front-rear direction. Specifically, the draft θf is set in the range of 3 ° to 45 ° on the front end surface portion 11c with respect to the sliding direction of the mold 30.

  Accordingly, similarly to the inner side surface portion 11b, the front end surface portion 11c can be easily extracted. And also in the corner | angular part of the boundary of the upper surface part 11a and the front-end surface part 11c, since the direction where a force is added at the time of a press and the extending direction of a mat | matte material do not correspond, a molding defect can be suppressed effectively.

  In addition, the floor mat concerning this invention is not limited to embodiment mentioned above, The other various structure is included.

  The front mat portion 13 and the side mat portions 11 and 11 may be bonded to each other so as not to be detached. Similarly, the rear mat portion 12 may be non-detachably joined thereto. The means for getting on and off the wheelchair is not limited to the slope. You may raise and lower with a lift.

DESCRIPTION OF SYMBOLS 1 Wheelchair mobile vehicle 2 Expansion space 3 Entrance / exit 4 Back door 10 Floor mat 11 Side mat part 11a Upper surface part 11b Inner side surface part 11c Front end surface part 11d Flange part 12 Rear mat part 13 Front mat part 15 Joining zone

Claims (6)

A floor mat for a wheelchair mobile vehicle provided with an extension space at the rear of the passenger compartment to enable a wheelchair to be seated in a seated state,
A pair of side mat portions covering left and right floor surfaces in the extension space;
A rear mat portion covering a floor surface extending between the pair of side mat portions;
A front mat portion covering a floor surface extending forward of the expansion space;
With
Each of the pair of side mat portions is
An upper surface portion extending in the front-rear direction along the side surface of the expansion space and positioned above the rear wheel;
An inner side surface portion that hangs down from the inner edge of the upper surface portion and is located inward of the rear wheel;
A front end surface portion that extends to the front end edge of each of the upper surface portion and the inner side surface portion and is located in front of the rear wheel;
A flange portion projecting in a direction away from the rear wheel along the lower edge of each of the inner side surface portion and the front end surface portion;
Have
The front mat and the Riyamatto portion integrally by bonding zone wherein the the rear edge of the front mat portion and the front edge of the Riyamatto portion, is formed so as to extend in the lateral direction by bonding one on top Are joined to the pair of side mat portions via the flange portion,
A floor mat in which the joining band enters between the pair of side mat portions. The floor mat according to claim 1,
A floor mat in which the joining band is located in front of a position where a rear wheel of a wheelchair enters. The floor mat according to claim 2,
A floor mat in which the joining band is configured by overlapping a front edge portion of the rear mat portion on a rear edge portion of the front mat portion. It is a manufacturing method which manufactures the floor mat as described in any one of Claims 1-3,
A part mold corresponding to the shape of each of the pair of side mat parts, the rear mat part, and the front mat part is formed with a gap from each other in an arrangement at the time of joining to one mold,
A manufacturing method in which each of the pair of side mat portions, the rear mat portion, and the front mat portion is molded at a time by molding a sheet-like mat material using the mold. In the manufacturing method of Claim 4,
A manufacturing method of molding each part mold of the side mat portion in a state in which the pair of side mat portions are inclined in the left-right direction by inclining the inner edges of the left and right upper surface portions away from each other. In the manufacturing method of Claim 5,
Further, the manufacturing method of molding each part mold of the side mat part so that the pair of side mat parts are inclined in the front-rear and left-right directions by inclining the upper surface part so that the upper surface part inclines backward.

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