JP5182119B2 - Welfare vehicles - Google Patents

Description

  The present invention is configured so that a wheelchair can be placed and fixed, and a platform that can be stored in a vehicle interior, and between a storage position in the vehicle interior and a wheelchair entry / exit position outside the vehicle interior in a state where the platform is held horizontally. It is related with the welfare vehicle provided with the moving mechanism to move by (1), and the support | pillar which is standingly arranged at the edge part on the said platform, and suspends and supports the shoulder belt of a three-point seat belt.

A welfare vehicle comprising a wheelchair platform and a moving mechanism for moving the platform between a storage position in the passenger compartment and a wheelchair entry / exit position outside the passenger compartment so that a care recipient can get in and out of the wheelchair. Are known. In such a welfare vehicle, a support for supporting a three-point seat belt is provided on the platform so that an assistant can set a three-point seat belt for a care recipient on the wheelchair on the platform in a wheelchair entry / exit position. It is erected.
For example, as shown in FIG. 2, the column is erected at the end of the platform 101, and a retractor 104 for the lap belt 103 and a retractor 106 for the shoulder belt 105 are fixed to the lower part of the column 102. ing. In addition, a suspension tool 107 for hanging the shoulder belt 105 is fixed to the upper portion of the support column 102 by a shoulder anchor 108.
As described above, since the shoulder anchor 108 is fixed to the upper portion of the column 102, the seat belt load at the time of a vehicle collision or the like is concentrated on the upper portion of the column 102 via the shoulder anchor 108. Therefore, the support column 102 is configured to have a strength sufficient to withstand a seat belt load.

However, if the structure is such that all of the seat belt load is received by the support 102, it is necessary to increase the strength of the support 102, which increases the size and weight of the support 102 and increases the cost.
In order to improve this point, when the platform 101 reaches the retracted position in the passenger compartment, the column 102 is reinforced with the link by engaging the center of the column 102 in the height direction with the link of the moving mechanism. A technique that enables this is described in Patent Document 1.

JP 2003-229723 A

  However, if the link of the moving mechanism supports the substantially central position of the column 102 in the height direction, the seat belt load applied to the upper portion of the column 102 via the shoulder anchor 108 cannot be efficiently received by the link. For this reason, if the strength of the column 102 is low, the column 102 may bend at the connection portion with the link due to the seat belt load. Therefore, it is difficult to reduce the strength of the column 102 to a desired level.

  The present invention has been made to solve the above-described problems, and the problem to be solved by the present invention is to reduce the strength and cost of the support so that the strength of the support can be reduced as compared with the prior art. The purpose is to plan.

The above-described problems are solved by the inventions of the claims.
The invention of claim 1 is configured so that a wheelchair can be mounted and fixed, and a platform that can be stored in a vehicle interior, a storage position in the vehicle interior and a wheelchair entry / exit position outside the vehicle compartment while the platform is held horizontally. A welfare vehicle comprising: a moving mechanism for moving between and a strut for standingly supporting a shoulder belt of a three-point seat belt, which is erected on an end portion on the platform; A suspension tool for hanging the shoulder belt is fixed by a shoulder anchor, and the shoulder anchor is provided with an engaging portion, and an upper portion of the pillar constituting the passenger compartment is disposed on the platform. When a seat belt load is applied to the shoulder anchor of the support column in a state where is in the retracted position in the vehicle interior, the engagement portion of the shoulder anchor is engaged. Constructed anchor receiving member so wear is characterized in that it is fixed.

  According to the present invention, when a seat belt load is applied to the shoulder anchor of the support column with the platform in the retracted position, the engagement portion of the shoulder anchor engages with the anchor receiving member of the pillar of the vehicle compartment. That is, the seat belt load (the load applied to the shoulder belt) is received by the column and the pillar in the passenger compartment. For this reason, compared with the conventional system which receives the seatbelt load applied to the upper part of a support | pillar only by the support | pillar, it becomes possible to reduce the intensity | strength of the said support | pillar. Thereby, the weight of the column can be reduced and the cost can be reduced.

According to the invention of claim 2, the engaging portion of the shoulder anchor is formed in a shaft shape, the engaging portion protrudes from the side surface of the support column in the vehicle width direction, and the platform is stored in the anchor receiving member. In the process of moving to, the shoulder anchor engaging portion is provided with a notch portion configured to be inserted from the radial direction, and the shoulder anchor engaging portion is provided with the engaging portion. It is configured to be engaged with the anchor receiving member by applying the seat belt load to the shoulder anchor in a state of being inserted into the notch portion.
As described above, since the engaging portion of the shoulder anchor is automatically engageable with the anchor receiving member of the pillar in the process of moving the platform to the retracted position, the shoulder anchor and the anchor receiving member are manually connected. There is no need to be able to engage.

According to the invention of claim 3, the protruding end surface of the engaging portion of the shoulder anchor is provided with a head portion formed wider than the notch portion of the anchor receiving member.
Therefore, even if the shoulder anchor receives an axial load in a state where the platform is in the retracted position, that is, in a state where the engagement portion of the shoulder anchor is inserted into the notch portion of the anchor receiving member. The engaging portion of the anchor does not come off from the anchor receiving member.

  According to the present invention, since the strength of the support can be reduced as compared with the prior art, the weight of the support can be reduced and the cost can be reduced.

It is a model perspective view showing the rear part of the welfare vehicle which concerns on this Embodiment 1 of this invention. It is a disassembled perspective view showing the three-point seat belt and support | pillar of a platform in the said welfare vehicle. It is a side view showing the movement mechanism etc. of the said welfare vehicle. It is a disassembled perspective view showing the shoulder anchor of the support | pillar and the anchor receiving member of a pillar which are used with the said welfare vehicle. It is a side view showing the shoulder anchor of the support | pillar used by the said welfare vehicle, and the anchor receiving member of a pillar. It is VI-VI arrow sectional drawing of FIG. 1, FIG.

[Embodiment 1]
Hereinafter, the welfare vehicle according to the first embodiment of the present invention will be described with reference to FIGS.
Here, front and rear, left and right and up and down in the figure correspond to front and rear, left and right and up and down of the welfare vehicle.

<About the outline of welfare vehicles>
As shown in FIG. 1 and the like, the welfare vehicle C according to the present embodiment is a one-box type vehicle and includes a rear side opening H, and the rear side opening H is a vertically-rotating back door (not shown). ) Can be opened and closed. A wheelchair rear lifter 10 is provided at the rear of the welfare vehicle C to allow a care recipient to get on and off from the rear opening H with the wheelchair K.
The wheelchair rear lifter 10 includes a platform 20 on which the wheelchair K is placed, a pair of left and right front and rear slide mechanisms 30 that slide the platform 20 back and forth, and a pair of left and right lifting link mechanisms 40 that horizontally lift and lower the platform 20. ing.

<Overview of Elevating Link Mechanism 40 and Front / Rear Slide Mechanism 30>
As shown in FIGS. 1 and 3, the elevating link mechanism 40 includes a fixing bracket 41 provided at both ends of the rear portion of the passenger compartment floor FL, and a four-bar link connected to the fixing bracket 41 so as to be vertically rotatable. A second link 44 in an upright state connected to the tip of the four-joint link portion 43 so as to be vertically rotatable, and a drive portion (not shown) that vertically turns the four-link portion 43 ). The platform 20 is connected to the base end (lower end) of the second link 44 via the front / rear slide mechanism 30 in a state where the platform 20 is held horizontally.
The front / rear slide mechanism 30 includes a slide rail 35 provided on the left and right side surfaces of the platform 20 and a slide mechanism main body 33 that slides the slide rail 35 in the vehicle front-rear direction.

As shown in FIG. 3, when the drive unit of the lifting / lowering link mechanism 40 operates in a state in which the platform 20 is in the wheelchair entry / exit position, and the left and right four-bar link portions 43 rotate upward with respect to the fixing bracket 41, The left and right second links 44 are pulled upward by the four-bar link portion 43. As a result, the platform 20 connected to the left and right second links 44 via the front / rear slide mechanism 30 rises in a state where the platform 20 is held horizontally. Then, at the stage where the four-bar link portion 43 is rotated to a position where it rises, the second link 44 reaches a position where it overlaps the four-bar link portion 43, and the four-bar link portion 43, the second link 44, and the front and rear slide mechanism main body. The unit 33 is stored in the passenger compartment. Next, the drive part of the raising / lowering link mechanism 40 stops, and the platform 20 moves forward by the front / rear slide mechanism main body part 33 operating, and is stored in the vehicle interior.
Further, when the platform 20 in the retracted position in the passenger compartment moves to the wheelchair entry / exit position, the front / rear slide mechanism 30 and the lifting / lowering link mechanism 40 operate in the reverse order to the above order.
That is, the front / rear slide mechanism 30 and the lift link mechanism 40 described above correspond to the moving mechanism of the present invention.

<About Platform 20>
As shown in FIG. 1, the platform 20 is formed in a rectangular shape that is long in the front-rear direction, and a slope plate 21 is connected to the rear end portion of the platform 20 so as to be rotatable up and down. Further, a square wheelchair wheelchair stopper 22 is provided at the front edge of the platform 20. Further, the platform 20 is provided with a lashing device (not shown) for fixing the wheelchair K that has been advanced on the platform 20 to the position of the wheelchair stopper 22 at that position. Further, on the right side of the rear part of the platform 20, a support column 25 that supports a wheelchair three-point seat belt 50 is provided upright.

<About the three-point seat belt 50>
As shown in FIGS. 2 and 3, the three-point seat belt 50 includes a lap belt 51 that restrains the waist of the care recipient and a shoulder belt 53 that restrains the upper body of the care recipient. The base end portions of the lap belt 51 and the shoulder belt 53 are connected to the retractors 51r and 53r, respectively, and can be wound around the retractors 51r and 53r. And the retractors 51r and 53r of the lap belt 51 and the shoulder belt 53 are being fixed to the lower part of the support | pillar 25 via the support plate 25s. Further, locking metal fittings 51t and 53t are attached to the leading end sides of the lap belt 51 and the shoulder belt 53. A suspension tool 55 for suspending a middle portion of the shoulder belt 53 is connected to the upper portion of the support 25 by a shoulder anchor 27.
A support member 24 is erected on the left side of the rear portion of the platform 20 at a position facing the support column 25, and the base end portions of the upper stay 57 and the lower stay 58 are connected to the support member 24. And the buckle 58b which can engage the latching metal fitting 51t of the lap belt 51 is being fixed to the front-end | tip of the lower stay 58. FIG. Further, a buckle 57 b that can engage with a latch metal 53 t of the shoulder belt 53 is fixed to the tip of the upper stay 57.

<About shoulder anchor 27>
As described above, the shoulder anchor 27 is a shaft-like body for connecting the suspending tool 55 for suspending the shoulder belt 53 to the upper portion of the support column 25. As shown in FIGS. Is welded to the support column 25 in a state of penetrating in the vehicle width direction (left-right direction). The shoulder anchor 27 includes a male screw portion 27m that protrudes inward in the vehicle width direction (left direction) from the side surface of the support column 25, and the male screw portion 27m is inserted into the bolt hole 55b of the hanging tool 55. It is configured. And the nut 27z is fastened with respect to the male thread part 27m of the shoulder anchor 27 inserted in the bolt hole 55b of the suspending tool 55. Thereby, the suspending tool 55 is connected to the upper part of the support column 25.
Further, the shoulder anchor 27 includes an engagement shaft portion 27j that protrudes outward (rightward) in the vehicle width direction from the side surface of the support column 25, and a disc-shaped head portion 27h at the protruding end of the engagement shaft portion 27j. Is fixed coaxially. That is, the engagement shaft portion 27j and the head portion 27h of the shoulder anchor 27 correspond to the engagement portion of the shoulder anchor of the present invention.

<About the anchor receiving member 60>
As shown in FIG. 1, an anchor receiving member 60 is fixed to the upper part of the rear pillar Cp constituting the passenger compartment of the welfare vehicle C. The anchor receiving member 60 is configured such that the engaging shaft portion 27j of the shoulder anchor 27 of the support column 25 is fitted when the platform 20 moves forward to the retracted position in the vehicle interior. As shown in FIGS. 4 to 6, the anchor receiving member 60 includes a fixed plate portion 64 that is bolted to the surface of the rear pillar Cp, and an engagement plate portion 62 that is connected to the fixed plate portion 64. Yes. As shown in FIG. 4 and the like, the fixed plate portion 64 is configured by a vertical plate portion 64t and upper and lower plate portions 64u and 64d to have a substantially C-shaped side surface, and a bolt 65 is passed through the center of the vertical plate portion 64t. Bolt holes 64x are formed. Further, a pin hole 64y into which the connecting pin 63 is inserted is formed at the center of the upper plate portion 64u and the lower plate portion 64d.

The engaging plate portion 62 is formed in a substantially C-shaped side surface by a vertical plate portion 62t and upper and lower plate portions 62u and 62d, and is fixed by the upper plate portion 62u and the lower plate portion 62d as shown in FIG. The upper and lower plate portions 64u and 64d of the plate portion 64 are configured to be sandwiched from above and below. And the pin hole 62y by which the connection pin 63 is penetrated by the upper board part 62u and the lower board part 62d of the engagement board part 62 is formed. Further, as shown in FIGS. 4 and 5, the longitudinal plate portion 62t of the engagement plate portion 62 has a long hole-shaped notch configured so that the engagement shaft portion 27j of the shoulder anchor 27 can be fitted from behind. The part 67 is formed to extend in the front-rear direction. In addition, as shown in FIG. 5, the opening part (rear end part) of the notch part 67 has an enlarged part 67w by an inclined surface so that the engagement shaft part 27j of the shoulder anchor 27 can be easily fitted from the rear. Is provided.
Here, the width dimension of the notch 67 is set to be slightly larger than the outer diameter dimension of the engagement shaft portion 27j of the shoulder anchor 27 and sufficiently smaller than the outer diameter dimension of the head 27h of the shoulder anchor 27.

  In order to fix the anchor receiving member 60 to the upper part of the rear pillar Cp, as shown in FIG. 6, the bolt hole 64x of the fixing plate part 64 is aligned with the mounting hole Cph of the rear pillar Cp. Here, a bracket Nb having a bolt hole is fixed in advance to the back side of the attachment hole Cph of the rear pillar Cp, and a nut Nt is attached to the bracket Nb. Therefore, the fixing plate portion 64 is fixed to the upper portion of the rear pillar Cp by aligning the bolt hole 64x of the fixing plate portion 64 with the mounting hole Cph of the rear pillar Cp and screwing the bolt 65 to the nut Nt. be able to. Next, the connecting pin 63 is inserted into the pin holes 62 y and 64 y in a state where the upper and lower plate portions 64 u and 64 d of the fixed plate portion 64 are sandwiched between the upper and lower plate portions 62 u and 62 d of the engagement plate portion 62. In this state, the attachment of the anchor receiving member 60 is completed by caulking the tip of the connecting pin 63.

<Operation of welfare vehicle C>
When the care recipient is to be boarded in the wheelchair K in the welfare vehicle C described above, first, the assistant moves the wheelchair K to the forward limit position on the platform 20 in the state shown in FIG. It is fixed to the platform 20 by a binding device. Next, the caregiver restrains the waist and upper body of the care recipient by the three-point seat belt 50. Thus, since the assistant can handle the three-point seat belt 50 outside the passenger compartment, the workability is improved as compared with the case of handling the three-point seat belt 50 inside the passenger compartment.
Next, the assistant operates a boarding switch (not shown) of the wheelchair rear lifter 10. When the boarding switch is operated, the drive unit of the elevating link mechanism 40 operates and the left and right four-bar link units 43 rotate in the standing direction. As a result, the left and right second links 44 are pulled up in a standing state, and the platform 20 moves up to the vehicle compartment side (front) while rising horizontally. And the drive part of the raising / lowering link mechanism 40 stops in the state in which the left-right four-bar link part 43, the 2nd link 44, and the slide mechanism main-body part 33 of the front-back slide mechanism 30 were stored in the vehicle interior.

Next, the slide mechanism main body portion 33 of the front / rear slide mechanism 30 is operated to slide the platform 20 forward and stored in the passenger compartment. As the platform 20 moves forward, as shown in FIG. 5, the notch portion of the anchor receiving member 60 in which the engagement shaft portion 27j of the shoulder anchor 27 fixed to the column 25 is fixed to the upper portion of the rear pillar Cp. Fitting to 67 from the rear. At this time, the head 27h of the shoulder anchor 27 is inserted between the engagement plate portion 62 and the fixed plate portion 64 of the anchor receiving member 60 (see FIG. 5). In this way, when the platform 20 moves forward to the retracted position, the front / rear slide mechanism 30 stops and the care recipient is completed.
In addition, when the care recipient is to be dismounted, the assistant operates the dismount switch (not shown) of the wheelchair rear lifter 10 so that the front / rear slide mechanism 30 and the elevating link mechanism 40 are reversed in the reverse order. Works.
Here, in the state where the platform 20 is in the retracted position, as described above, the engagement shaft portion 27j of the shoulder anchor 27 is fitted to the anchor receiving member 60 of the rear pillar Cp. For this reason, for example, when a seat belt load at the time of a vehicle collision is applied to the shoulder anchor 27, the seat belt load is received by the support column 25 through the shoulder anchor 27, and also through the shoulder anchor 27 and the anchor receiving member 60. It can be received at the rear pillar Cp.

<Advantages of welfare vehicle C according to this embodiment>
According to the welfare vehicle C according to the present embodiment, when a seat belt load is applied to the shoulder anchor 27 of the support column 25 with the platform 20 in the retracted position, the engagement shaft portion 27j of the shoulder anchor 27 is connected to the rear pillar of the vehicle interior. Engages with the Cp anchor receiving member 60. That is, the seat belt load (the load applied to the shoulder belt 53) is received by the support column 25 and the rear pillar Cp. For this reason, compared with the conventional system which receives the said seatbelt load added to the upper part of the support | pillar 25 only by the support | pillar 25, it becomes possible to reduce the intensity | strength of the support | pillar 25. FIG. Thereby, the weight of the column 25 can be reduced and the cost can be reduced. Further, the weight of the support column 25 can be reduced, so that the imbalance of the weight in the width direction of the platform 20 can be reduced, and the vibration of the platform 20 during traveling of the vehicle can be suppressed.
In addition, as the platform 20 moves to the retracted position, the shoulder anchor 27 of the support column 25 automatically engages with the anchor receiving member 60 of the rear pillar Cp (becomes in an engageable state). There is no need to manually engage the anchor receiving member 60.
Further, since the shoulder anchor 27 is provided with a head portion 27h, the shoulder anchor 27 is axially moved in a state where the engagement shaft portion 27j of the shoulder anchor 27 is inserted into the notch portion 67 of the anchor receiving member 60. Even when the load is received, the shoulder anchor 27 does not come off the anchor receiving member 60.

<Example of change>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in the present embodiment, an example in which the upper portion of the support column 25 is formed in a rectangular tube shape and the shoulder anchor 27 is penetrated in the vehicle width direction is shown. However, the support column 25 is formed in a thick plate shape or a pipe shape, and the shoulder anchor is formed. The structure which penetrates 27 in the vehicle width direction is also possible.
In the present embodiment, the anchor receiving member 60 is provided with a notch 67, and the engagement shaft 27j of the shoulder anchor 27 of the column 25 is fitted into the notch 67 in the process of moving the platform 20 to the retracted position. An example of matching is shown. However, even when the platform 20 is in the retracted position and the engaging shaft portion 27j of the shoulder anchor 27 is not in contact with the notch 67 of the anchor receiving member 60 (even if not in the fitted state), the seat What is necessary is just to be able to engage both 27 and 60 when receiving a belt load. Further, the anchor receiving member 60 is formed in, for example, a hook shape, and the hook-shaped anchor receiving member is engaged with the engagement shaft portion 27j of the shoulder anchor 27 in the process of moving the platform 20 to the retracted position. But it ’s okay.

20 .... Platform 25 .... Pole 27 ...... Shoulder anchor 27j ... Engagement shaft part (engagement part)
27h ... Head (engagement part)
30 · · · Front and rear slide mechanism (moving mechanism)
40 ··· Lifting link mechanism (moving mechanism)
50 ··· Three-point seat belt 53 ··· Shoulder belt 55 ··· Hanging device 60 · · · Anchor receiving member Cp · · · Rear pillar (pillar)
K ... Wheelchair

Claims (3)

A platform that can be mounted and fixed on a wheelchair, and can be stored between the storage position in the vehicle interior and the wheelchair entry / exit position outside the vehicle compartment while the platform can be stored horizontally. A welfare vehicle comprising a mechanism and a support for standingly supporting a shoulder belt of a three-point seat belt, which is erected on an end portion on the platform,
A hanging tool for hanging the shoulder belt is fixed to the upper portion of the column by a shoulder anchor,
The shoulder anchor is provided with an engaging portion,
When a seat belt load is applied to the shoulder anchor of the support column with the platform in the retracted position in the passenger compartment, the engaging portion of the shoulder anchor is engaged with the upper part of the pillar constituting the passenger compartment. An welfare vehicle characterized in that an anchor receiving member configured to be able to be fixed is fixed. A welfare vehicle according to claim 1,
The engaging portion of the shoulder anchor is configured in a shaft shape, and the engaging portion protrudes from the side surface of the support column in the vehicle width direction,
The anchor receiving member is provided with a notch portion configured such that an engaging portion of the shoulder anchor is inserted from a radial direction in the process of moving the platform to a retracted position.
The engagement portion of the shoulder anchor is configured to engage with the anchor receiving member when the seat belt load is applied to the shoulder anchor in a state where the engagement portion is inserted into the notch portion. A welfare vehicle characterized by A welfare vehicle according to claim 2,
A welfare vehicle characterized in that a projecting end surface of the engaging portion of the shoulder anchor is provided with a head formed wider than a notch portion of the anchor receiving member.

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