JP2002316584A - Slope device of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent folding/bending at a slope surface from generating by unevenness of a road surface. SOLUTION: A slope plate 3 of which a base end 31 is rotatably bonded to a tail gate 2 provided on an opening lower edge of the vehicle and a slope plate 4 rotatably bonded to the slope plate 3 are provided. These slope plates 3, 4 are developed to an opened outside position on an approximately extending line of a vehicle floor and are advanceably turned by a driving motor 25. When the slope plates 3, 4 are advanced, a limit switch 71 is operated to inclinedly move the vehicle floor from an approximately horizontal attitude to an attitude downwardly inclined to an opened outward direction. When a tip end 42 of the slope plate 4 is butted to the road surface, the inclining motion is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope device for a vehicle, and more particularly to a structural improvement for preventing a protruding slope body from being bent due to unevenness of a road surface.

[0002]

2. Description of the Related Art A slope device has been provided to enable a person to get on and off a vehicle in a wheelchair. The inventors have previously proposed a slope device as shown in FIG. 2000-274898). In FIG. 8, the tail gate 2 is opened in a substantially horizontal posture, and the tail gate 2 is hinged at the lower edge of the lower opening O2 provided at the center of the rear bumper 1 of the van type vehicle. 21 (see FIG. 9), and
One end of a link arm 22 is rotatably connected to the left and right positions of the distal end. The other ends of the link arms 22 are rotatably connected to the distal ends of link arms 23 that are turned by a drive motor 24 (only one is shown in FIG. 8) disposed on the side wall of the vehicle compartment. Is turned in the counterclockwise direction in FIG. 8, the tailgate 2 rises and turns to a substantially vertical posture and the lower opening O2
To close.

A drive motor 25 is provided in the center of the upper surface of the tailgate 2 inside the cover 26, and a pulley 51 is mounted on an output shaft projecting downward. Pulley 51
Two wires 5 extending in the width direction of the tailgate 2
One end of each of the wires 52 and 53 is suspended.
53 is wound around the pulley 51 in opposite directions.
Therefore, for example, when the pulley 51 rotates forward, the wire 52
Is wound on the pulley 51, while the wire 53 is paid out from the pulley 51. Each of the wires 52 and 53 is a pulley 5 provided at an end in the width direction of the tailgate 2 in an inclined posture.
4 and 55, they are turned to the rear of the vehicle, and are wound around fixed pulleys 58 and 59 for driving a slope plate via pulleys 56 and 57 in vertical postures, respectively. Each of the fixed pulleys 58 and 59 is supported by a support shaft 581 provided on the tail gate 2 side.
(One is shown in FIG. 9), and both sides of the base end of the slope plate 3 are integrally fixed to the fixed pulleys 58, 59.

The winding directions of the wires to the fixed pulleys 58 and 59 after passing through the pulleys 56 and 57 are opposite to each other, and the fixed pulley 58 is turned counterclockwise by the wire 52 wound around the pulley 51. When rotated, the wire 53 fed from the pulley 51 is taken up by the fixed pulley 59 rotating in the counterclockwise direction. As a result, the slope plate 3 integrated with the fixed pulleys 58, 59 is rotated upward about the support shaft 581. Let me do.

Fixed pulleys 61 and 62 are provided concentrically with the fixed pulleys 58 and 59. The fixed pulleys 61 and 62 are fixed to a support shaft 581 (FIG. 9) and do not rotate. It is stationary. Support shafts 631 (one is shown in FIG. 9) are provided on the lower surfaces on both sides of the distal end of the slope plate 3, and fixed pulleys 63 and 64 are rotatably supported on these shafts.
Are fixed integrally on both sides of the base end. Wires 65, 6 are provided between the fixed pulleys 61, 63 and 62, 64, respectively.
6 are suspended.

When the tailgate 2 and the slope plates 3 and 4 are deployed outside the opening lower portion O2 to form a slope (FIG. 10), the wheelchair is put into the passenger compartment, and then the drive motor 25 drives the wire 52 ( When the slope plate 3 is rotated upward in the counterclockwise direction by driving the FIG. 8), the slope plate 4 connected to the tip of the slope plate 3 is rotated clockwise by its own weight (FIG. 11). , And slope plate 3
Is rotated counterclockwise and folded on the tailgate 2, the slope plate 4 rotating clockwise is folded so as to overlap the folded slope plate 3 (FIG. 12).
Thereafter, when the tail gate 2 is rotated to a substantially vertical posture by the drive motor 24 and the link arms 22 and 23 (FIG. 1).
3) The lower opening O2 is closed by the tailgate 2, and the slope plates 3 and 4 are compactly stored behind the tailgate 2 in a folded state. Note that FIG.
Reference symbol D in the drawing is a back door.

When the slope plates 3 and 4 are to be protruded and deployed, the drive motor 25 or the link arm 23 is rotated in the opposite direction to the above, and the tail gate 2 and the slope plate 3 are traced in reverse to FIGS. , 4 are activated. By the way, when the slope plates 3 and 4 are deployed, the vehicle floor F is lowered from the substantially horizontal position to the outside of the opening by a neal-down device that contracts the damper of the rear wheel suspension device to lower the vehicle height at the rear of the vehicle. Let it tilt. As a result, the developed slope plates 2 and 3 are linearly bridged with the road surface G in an inclined posture, as shown in FIG.

[0008]

By the way, in the above-mentioned slope device, if the road surface G has irregularities and the road surface G rises as shown in FIG. Since the slope plate 3 comes into contact with the road surface above the position (the chain line in FIG. 14), the slope plate 3 is bent upward in an inverted letter-shape at an angle with respect to the tailgate 2 at the support shaft 581, and the wheelchair. There was a problem that getting on and off of the car was not smooth.

Accordingly, an object of the present invention is to solve such a problem, and an object of the present invention is to provide a slope device for a vehicle in which a slope surface is not bent due to unevenness of a road surface.

[0010]

In order to achieve the above object, according to the first aspect of the present invention, the vehicle extends outward from the vehicle along a substantially extended line of the vehicle floor (F) from the lower edge of the opening (O2) of the vehicle. The vehicle floor (F) is integrated with the slope body (3, 4), which can be switched between a protruding state in which the vehicle body protrudes and retracted in the vehicle interior, and the slope body (3, 4) in the protruding state. Tilting means for tilting the protruding end side of (3, 4) so as to descend, and detecting means (72, 130) for detecting that the tip of the protruding slope body (3, 4) has contacted the road surface (G). ), Wherein the tilting means stops tilting of the vehicle floor (F) in response to a detection signal from the detecting means (72, 130). Here, "the lower edge of the opening of the vehicle" includes, in addition to the lower edge of the opening itself, a gate body that is coupled to the lower edge of the opening and that opens and rotates outwardly of the vehicle.

In the first aspect of the present invention, when the vehicle body is tilted by the tilting means with the slope main body protruding along a substantially extended line of the vehicle floor, the tilting is stopped when the tip of the slope main body contacts the road surface. . This allows
Even if the road surface has irregularities, the slope surface from the road surface to the vehicle floor via the slope main body is maintained in a straight line without being bent in the middle, and smooth entry and exit by a wheelchair is guaranteed.

In the second invention, in the first invention, the slope main body (3, 4) has a base end rotatably coupled to a lower edge of the opening (O2) along a vertical plane, By turning, it can be switched between the protruding state and the retracted state.

According to the second aspect of the present invention, when the slope main body is rotated so as to protrude along a substantially extended line of the vehicle floor and the vehicle floor is tilted by the tilting means, the slope main body tilts when the tip of the slope main body contacts the road surface. Is stopped. Accordingly, even if the road surface has irregularities, the slope surface from the road surface to the vehicle floor via the slope main body is maintained in a straight line without being bent in the middle, and smooth entry and exit by the wheelchair is guaranteed.

In the third invention, in the first invention or the second invention, a plurality of slope plates (3, 4) in which the slope bodies are connected in series so as to be rotatable along a vertical plane with each other.
, And the slope main body can be switched to the storage state in a folded state in which each slope plate is folded. In the third invention, even when the slope main body is formed of a plurality of slope plates to form a relatively long slope surface,
The same operation and effect as in the first invention or the second invention can be obtained.

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, when the slope main body (3, 4) is in the protruding state, the protruding end side with respect to the extension of the vehicle floor (F). It is in a slightly lowered inclination posture, and the detecting means (7
2, 130), the slope main body (3, 4) is tilted together with the vehicle floor (F) by the tilting means, and the slope main body (3, 4) comes into contact with the road surface (G) to be turned upward, whereby the vehicle The detection signal is transmitted by detecting that the posture has been taken along the extension of the floor (F).

In the fourth aspect of the present invention, since the detecting means detects that the slope main body has turned upward and is in an attitude along the extension of the vehicle floor, the detecting means is, for example, a limit switch. And so on.

According to a fifth aspect of the present invention, in the third aspect, the slope body is bent at at least one of the connecting portions of the slope plates (3, 4) in the protruding state, so that the vehicle floor (F) The protruding end side is slightly bent with respect to the extension line of the vehicle, and the detecting means (72) tilts the slope body together with the vehicle floor (F) by the tilting means, and the slope body contacts the road surface to move upward. The detection signal is transmitted by detecting that the vehicle has been turned and has taken an attitude along an extension of the vehicle floor.
According to the fifth aspect of the present invention, even when the slope body is constituted by a plurality of slope plates, it is easily detected by a limit switch or the like that the slope plates have taken an attitude along the extension of the vehicle floor, and the road surface is detected. A linear state of the slope surface can be secured without being affected by the unevenness of the slope.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the driving means (25, 12) for changing the slope main body (3, 4) between the projected state and the retracted state.
33), the first detecting means (71, 129) for detecting that the slope main body (3, 4) is in the protruding state, and the protruding slope main body (3, 4) abuts on the road surface (G). Second detecting means (72, 130) for detecting that the
Receiving the detection signal from the detecting means (71, 129), the tilting means starts tilting, and the second detecting means (72, 130)
Control means for stopping the tilting of the tilting means in response to the detection signal from the controller.

In the sixth aspect of the present invention, when the slope main body is changed to the protruding state, the first detecting means detects this, and the vehicle floor is tilted by the tilting means so that the protruding end side of the slope main body is lowered. . When the tip of the tilting slope body comes into contact with the road surface, this is detected by the second detection means, and the tilting of the slope body stops. Accordingly, even if the road surface has irregularities, the slope surface from the road surface to the vehicle floor via the slope main body is maintained in a straight line without being bent in the middle, and smooth entry and exit by the wheelchair is guaranteed.

In the seventh invention, the slope body (3)
Has a base end rotatably coupled to a lower edge of the opening O2 along a vertical plane, and can be switched between a projected state and a retracted state by rotation.
3) and a rotation transmitting mechanism (123A, 123A) for transmitting the rotational force of the drive motor (1233) to the slope body (3).
B, 125A, 125B, 126, 127, 151, 1
58), and the first detecting means (12)
9) is a rotation transmission mechanism (123A, 123B, 125A,
125B, 126, 127, 151, and 158) to detect that the slope main body (3) is in the protruding state from the change in the position of the member (123B) constituting the rotation transmission mechanism. More specifically, the rotation transmission mechanism includes a pinion gear (125B) mounted on an output shaft of the drive motor (1233), and the pinion gear (125).
B) and a driven gear (123B) that rotates while meshing with the driven gear (123).
B) detects that the slope body (3) has reached the position corresponding to the protruding state of the slope body (3), and detects that the slope body (3) has reached the protruding state.

In the seventh invention, the first detecting means includes:
A member that constitutes a rotation transmission mechanism that rotates the slope body between the protruding state and the retracted state, more specifically, a driven gear,
By detecting the moving position of the slope body, the protrusion state of the slope main body can be reliably detected.

The reference numerals in parentheses indicate the correspondence with specific means described in the embodiments described later.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 shows a slope device in which a tailgate 2 is opened and slope plates 3 and 4 constituting a slope main body are extended and protruded. The basic structure is the same as that of the previously proposed slope device described above, and the following description will focus on the differences. In this embodiment,
Unlike the previously proposed slope device, the slope plates 3, 4
Prior to the deployment of the Neildown device does not work. Therefore, as shown in FIG. 1, the tailgate 2 is opened in a substantially horizontal posture, and the slope plate 3 connected to the tip of the tailgate 2 is horizontally developed substantially flush with the extension of the tailgate 2. A limit switch 71 is provided at the tip of the tailgate 2, and the slope plate 3 is inverted from the folded and stored state on the tailgate 2 (see FIGS. 7 to 5), and a horizontal posture as shown in FIG. Base 3 of slope plate 3 when deployed to
1 comes into contact, and the limit switch 71 operates.

On the other hand, a limit switch 72 is provided at the tip 32 of the slope plate 3, and the slope plate 4 connected to the limit switch 72 is, as shown in FIG. On the other hand, it unfolds until it bends slightly downward. In this state, the limit switch 72 is not operated.

When the slope switch 3 is deployed horizontally and the limit switch 71 is operated, a signal from the limit switch 71 is actuated, and a known knee-down device is started to operate, whereby the vehicle floor F (see FIG. 3) is out of opening. As a result, the tailgate 2 and the slope plate 4 connected to the tip of the tailgate 2 also tilt. When the tip 42 of the slope plate 4 comes into contact with the road surface G during the tilting, the slope plate 4 is relatively rotated upward about the support shaft 631 with respect to the slope plate 3, and as shown in FIG. When the base plate 4 is substantially flush with the slope plate 3, the base end 41 comes into contact with the contact of the limit switch 72 to activate the limit switch 72. Upon receiving a signal from the limit switch 72, the neil-down device stops its operation. In this manner, the neal-down operation is stopped in a state where the tailgate 2 and the slope plates 3 and 4 are inclined in a straight line, so that the tailgate 2 and the slope plates 3 and 4 are straightly bent without being bent in the middle. Is hung between

(Second Embodiment) In FIG. 3, the floor F of the rear compartment of the vehicle is opened rearward at the center of the rear bumper 1 as an opening lower portion O2. The lower opening O2 is opened and closed by a tail gate 2, and the tail gate 2 is rolled down and deployed substantially horizontally to the rear of the vehicle outside the opening O to open the lower opening O2 as shown in the figure. A slope plate 3 having substantially the same width as that of the tailgate 2 is rotatably connected to the tip of the tailgate 2, and the tailgate 2 and the slope plate 3 are deployed to the rear of the vehicle. In the present embodiment, the slope main body is constituted by one slope plate 3.

FIG. 4 is a side view of the developed tailgate 2 and the slope plate 3. The slope plate 3 in the developed and projected state is extended from the tailgate 2 with respect to the extension surface (a chain line in the figure).
It extends to the position where it bends slightly below. The tailgate 2 is rotatably coupled to the lower edge of the lower opening O2 (FIG. 3) by hinges 21 at the left and right positions of the base end thereof.
A link arm 22 is provided at the left and right end of the tailgate 2.
One end of FIG. 3 is rotatably connected. The other ends of the link arms 22 are rotatably connected to the distal ends of arm portions 1242 of a sector-shaped driven gear 1241 of a drive mechanism 124 (only one is shown in FIG. 3), which will be described in detail later, provided on the side wall of the passenger compartment. A pinion gear 1244 that is rotated forward and reverse by a drive motor 1243 meshes with the outer periphery of the driven gear 1241. Driven gear 12
When the base 41 is turned around its support shaft 1245 in the counterclockwise direction in FIG.

Referring to FIG. 3, fan-shaped driven gears 123A and 123B are disposed in the tailgate 2 at symmetrical positions on the left and right sides, and the driven gears 123A and 123B are rotated forward and reverse by a drive motor (not shown) on the outer periphery. The pinion gears 125A and 125B are engaged with each other. Rotation axis 1 along the rear side of tailgate 2 near slope plate 3
The rotating shaft 126 is connected to the plate surfaces of the driven gears 123A and 123B by connecting members 127 at two locations in the longitudinal direction. The detailed structure is shown in FIG.

FIG. 5 is a perspective view of the tailgate 2 as viewed from below. Brackets 1231 are fixed to the lower surface of the upper panel (gate upper panel) of the tailgate 2 at left and right positions in the inner space of the tailgate 2, respectively. Each bracket 1231 is formed in a substantially gourd shape in plan view, and a support shaft 1232 is rotatably provided at the center of one circular portion. Each spindle 123
2, the central portions of the driven gears 123A and 123B are fixed, and can be horizontally rotated in the tailgate 2.
These driven gears 123A and 123B are located symmetrically to each other. The other circular portion of the bracket 1231 holds a gear box 1234 of the drive motor 1233, and the output shaft 1 protruding from the gear box 1234.
Reference numeral 235 protrudes from the center of the circular portion, and the above-described pinion gears 125A and 125B are attached to the end thereof. These pinion gears 125A and 125B mesh with the outer peripheral teeth of the driven gears 123A and 123B, respectively.

Each driven gear 123 close to the support shaft 1232
The plate surfaces of A and 123B and the rotating shaft 126 are respectively connected by connecting members 127, and the structure of the connecting portion on the rotating shaft 126 side is shown in FIG. The rotating shaft 126 has serrations formed at both ends on the outer periphery of a shaft body 1261 (FIG. 5) constituting both ends thereof, while one end of the connecting member 127 has a cylindrical portion having serrations formed on the inner periphery. A socket body 1271 is provided. And the shaft 12
61 is inserted into the cylindrical portion of the socket body 1271 to connect them so that they cannot rotate relative to each other.
One end of the shaft 1261 is inserted into the serrated cylinder of the connecting cylinder 1262 constituting the intermediate portion of the shaft 26. In this way, the shaft bodies 1261 at both ends of the rotating shaft 126 are integrally connected by the connecting cylinder 1262. Each shaft 1261 is rotatably supported by a bearing 1263 provided in the tailgate 2, and serrations are formed on the outer periphery of the end protruding from the bearing 1263, and the fan-shaped driven gear 151 (FIG. (Only one of them is shown).

In FIG. 6, parallel leg portions 1272 protrude from the outer periphery of the cylindrical portion of the socket body 1271.
A universal joint 1274 attached to one end of a shaft 1273 constituting the connecting member 127 is connected between the joints 272.
The universal joint 1274 is a publicly known one and includes a cylindrical portion 1275 mounted on the shaft 1273 and a holding portion 1276 for rotatably holding the perforated sphere.
277 is inserted and connected to the leg 1272. As a result, one end of the connecting member 127 is
It is rotatable in a vertical plane around 7 and swingable within a certain angle range in a plane including the bolt axis. Universal joint 1278 attached to the other end of shaft 1273 (FIG. 5)
The universal joint 1274 has the same structure as that of the universal joint 1274, but its mounting posture is rotated by 90 degrees around the axis of the shaft 1273 with respect to the universal joint 1274, and the bolt 1279 passed through the through hole of the sphere of the universal joint 1278 is attached. , Driven gear 123
A and 123B are screwed upright and fixed to the plate surface. Thus, the other end of the connecting member 127 is horizontally rotatable around the bolt 1279, and is swingable within a certain angle range in a vertical plane including the bolt axis.

When the pinion gears 125A, 125B are rotated in opposite directions by the drive motor 1233, the driven gears 123A, 123B are also rotated in FIG.
It is turned counterclockwise and clockwise around 32, respectively. Along with this, the connecting member 127 is pulled forward (downward in FIG. 5), and the rotating shaft 126 is rotated. When each of the pinion gears 125A and 125B is rotated in the reverse direction, the driven gears 123A and 123B are turned in the opposite direction to the above, and the connecting member 127 is pushed rearward with this, whereby the rotating shaft 126 is rotated in the reverse direction.

In FIG. 4, the base end of a bracket 152 bent in a letter shape is fixed to the rear end of the side surface of the tailgate 2, and a support shaft 1581 is provided on the plate surface of the front end bent above the bracket 152. The support shaft 1581 is erected.
And a bracket 1 fixed to both sides of the base end of the slope plate 3
A semicircular base end of 53 is rotatably supported. A circular gear 158 centering on the support shaft 1581 is joined to the plate surface of the semicircular base end portion, and the gear 158 meshes with the outer peripheral tooth shape of the driven gear 151. The driven gear 151 is fixed to an end of the shaft 1261 of the rotary shaft 126 that penetrates outwardly through the bent plate surface of the bracket 152. Driven gears 123A, 123B, pinion gears 125A, 125B, rotating shaft 126, connecting member 12
7, the driven gear 151, and the circular gear 158 constitute a rotation transmission mechanism for transmitting the rotational force of the drive motor 1233 to the slope plate 3.
3A is turned clockwise), the driven gear 1
51 is rotated counterclockwise in FIG. 4, and as a result, the slope plate 3 rotates until it bends slightly downward beyond the extension surface of the tailgate 2 as shown in FIG. Conversely,
When the driven gear 123B is turned clockwise around the support shaft 1232 in FIG. 5 (the driven gear 123A is counterclockwise), the driven gear 151 is rotated clockwise in FIG. 4, and the slope plate 3 is turned upward. , Is turned over and folded on the tailgate 2 to be in the stored state.

In FIG. 5, a plate-like striker 128 is fixed at one end of the outer peripheral portion of the plate surface of the driven gear 123B so as to protrude radially outward. On the other hand, a limit switch 129 is provided on the gate upper panel of the tail gate 2, and when the driven gear 123B reaches the rotating end in the counterclockwise direction as shown in the figure, the slope plate 3 is deployed (shown in FIGS. 3 and 4). State), the striker 128 contacts the contact of the limit switch 129 to turn on the limit switch 129. The gate upper panel is also provided with a limit switch 130 at one end of its rear edge (upper edge in FIG. 5), and when the slope plate 3 is deployed, the contact of the limit switch 130 comes into contact with the base end thereof.
The limit switch 130 is turned on.

FIG. 7 shows a drive mechanism 124 for the tailgate 2.
The details are shown below. A bracket 1247 is provided in the recess W1 (FIG. 3) on the side wall of the passenger compartment so as to be covered with a cover plate 1246. The bracket 1247 is formed in a substantially gourd shape in plan view, and has a circular portion on the rear side. At the center, a support shaft 1245 is rotatably provided upright. The spindle 1245
The arm portion 1242 extends obliquely rearward and upward from the center portion of the driven gear 1241, and the base portion of the link arm 22 is attached to the tip of the arm portion 1242. It is rotatably connected. A gear box 1248 of the drive motor 1243 is held in a circular portion on the front side of the bracket 1247. An output shaft 1249 protruding from the gear box 1248 protrudes from the center of the circular portion, and a pinion gear 1244 mounted on the tip thereof is provided. It meshes with the outer peripheral tooth profile of the driven gear 1241. When the pinion gear 1244 is rotated to rotate the driven gear 1241 forward and backward, the link arm 22 is moved in the front-rear direction, and the tailgate 2 is opened and closed.

In the slope device having such a structure,
After the tailgate 2 is opened and deployed by the drive mechanism 124, the driven gears 123 </ b> A, 1 </ b> A are driven by the drive motor 1233.
When the rotation shaft 126 is rotated via 23B to expand and rotate the slope plate 3, the limit switch 129 is turned on. A known knee down device is a limit switch 12
The vehicle floor F (FIG. 3) starts operating in response to the ON signal of No. 9 and is gradually inclined downward toward the rear outside the opening.
The tailgate 2 and the slope plate 3 connected to the tip thereof also tilt. When the tip 32 of the slope plate 3 comes into contact with the road surface G during the tilting, the gear 158, the driven gear 15
1, connecting member 127, driven gears 123A, 123
B and the backlash or backlash of the pinion gears 125A and 125B cause the slope plate 3 to rotate relatively upward with respect to the tailgate 2 around the support shaft 1581 shown in FIG. At the same time, the contact of the contact of the limit switch 130 with the base end of the slope plate 3 is released, and the limit switch 130
Is turned off. Upon receiving an off signal from the limit switch 130, the neil-down device stops its operation. Thus, the tailgate 2 and the slope plate 3
The tailgate 2 and the slope plate 3 are straightly bridged between the tailgate 2 and the slope plate 3 without being bent in the middle while the vehicle is inclined in a straight line.

In each of the above embodiments, the limit switches 72 and 13 determine that the ends of the slope plates 3 and 4 are in contact with the road surface.
Although it is detected as 0, it is not limited to the limit switch as long as it can detect the upward relative rotation of the slope plates 3 and 4. The contact of the tips of the slope plates 3 and 4 with the road surface may be detected by, for example, a touch sensor or the like. In this case, the slope plate 4 is connected to the slope plate 3 or the slope plate 3 is connected to the tail gate 2. It is not necessary to bend so that it bends downward, but it is sufficient to unfold it at the same level. The slope plate 3 may be directly coupled to the opening of the vehicle floor F instead of the tailgate 2. Also,
The slope main body may be constituted by three or more slope plates. Furthermore, the projecting operation or the retracting operation of the slope main body is not limited to the rotation shown in the above embodiment. In addition, the projecting operation or the retracting operation of the slope body is operated by a switch or the like different from the tilting of the vehicle floor,
Alternatively, it can be performed manually. In this case, the limit switches 71 and 129 can be omitted.
Further, in the second embodiment, the unfolding and protruding state of the slope plate 3 is detected from the fact that the driven gear 123B has reached the counterclockwise rotation end. However, the present invention is not limited to this, and other members constituting the rotation transmission mechanism may be used. The position change of the slope plate may be detected to determine the state of the slope plate being deployed and projected.

[0038]

As described above, according to the vehicle slope device of the present invention, even if the road surface has irregularities, the slope surface does not bend, and the smooth entry and exit of the wheelchair is always guaranteed.

[Brief description of the drawings]

FIG. 1 is a side view of a slope device according to a first embodiment of the present invention.

FIG. 2 is a side view of the slope device in a used state according to the first embodiment of the present invention.

FIG. 3 is a rear perspective view of a slope device in a use state according to a second embodiment of the present invention.

FIG. 4 is a side view of a slope device in a use state according to a second embodiment of the present invention.

FIG. 5 is a perspective plan view of a tailgate according to a second embodiment of the present invention as viewed from below.

FIG. 6 is an exploded perspective view of a connecting portion of a connecting member according to a second embodiment of the present invention, and is an exploded perspective view of a portion A in FIG. 5;

FIG. 7 is a front view of a tailgate drive mechanism according to a second embodiment of the present invention.

FIG. 8 is an overall perspective view of a conventional slope device.

FIG. 9 is a side view of a slope device in a used state, showing a conventional example.

FIG. 10 is a side view showing an operation of a slope device, showing a conventional example.

FIG. 11 is a side view showing an operation of a slope device, showing a conventional example.

FIG. 12 is a side view showing an operation of a slope device, showing a conventional example.

FIG. 13 is a side view showing an operation of a slope device, showing a conventional example.

FIG. 14 is a side view of a slope device in a used state, showing a conventional example.

[Explanation of symbols]

2 ... tailgate, 25 ... drive motor, 3 ... slope plate, 31 ... base end, 32 ... tip, 4 ... slope plate, 41 ...
Base end, 42 ... Tip, 71, 72 ... Limit switch, F
... Vehicle floor, G ... Road surface.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masahiko Wakana 100 Kanayama, Ichiriyama-cho, Kariya City, Aichi Prefecture Inside (72) Inventor Hiroyuki Keii 100 Kanayama, Ichiriyama-cho, Kariya City, Aichi Prefecture Toyota Body Co., Ltd. F-term (reference) 3D022 AA01 AB00 AC04 AD06 AE10 AE16

Claims (8)

[Claims] 1. A slope body that can be switched between a protruding state protruding outward from a vehicle along a substantially extended line of a vehicle floor from a lower edge of an opening of a vehicle and a retracted state located in a vehicle cabin;
A tilting means for tilting the vehicle floor so that a protruding end side of the slope main body is lowered together with the slope main body in the protruding state; Means, wherein the tilting means stops the tilting of the vehicle floor in response to a detection signal from the detecting means. 2. The slope body has a base end rotatably coupled to a lower edge of the opening along a vertical plane, and can be switched between a projected state and a retracted state by rotation. Vehicle slope device. 3. A slope body comprising a plurality of slope plates connected in series so as to be rotatable along a vertical plane,
The slope body can be switched to the retracted state in a folded state in which each slope plate is folded.
A slope device for a vehicle according to claim 1. 4. When the slope body is in the protruding state,
The protruding end side is slightly inclined with respect to the extension of the vehicle floor, and the detecting means is turned upward by the slope body being tilted together with the vehicle floor by the tilting means, and the slope body being in contact with the road surface, The slope device for a vehicle according to any one of claims 1 to 3, wherein the slope signal is transmitted by detecting that the posture has been taken along an extension of the vehicle floor. 5. When the slope body is in the protruding state,
Bending at least at one of the connecting portions of the slope plates, the protruding end side is slightly bent with respect to the extended line of the vehicle floor, and the detecting unit tilts the slope body together with the vehicle floor by the tilting unit, 4. The vehicle slope according to claim 3, wherein the slope body is rotated upward by contacting a road surface, and detects that the posture has been taken along an extension of the vehicle floor, and transmits the detection signal. apparatus. 6. A driving means for changing the slope main body between a protruding state and a retracted state, a first detecting means for detecting that the slope main body has entered a protruding state, and the protruding slope main body abutting on a road surface. Second detecting means for detecting that
6. A control means for receiving a detection signal from the first detecting means to start the tilting of the tilting means and receiving a signal from the second detecting means to stop the tilting of the tilting means. A slope device for a vehicle according to claim 1. 7. The slope body has a base end rotatably coupled to a lower edge of the opening along a vertical plane, and can be switched between a projected state and a retracted state by rotation. The first detecting means is provided with a drive motor and a rotation transmission mechanism for transmitting the rotational force of the drive motor to the slope main body. The first detection means is attached to the rotation transmission mechanism and detects a change in position of a member constituting the rotation transmission mechanism. The slope device for a vehicle according to claim 6, wherein the slope device detects that the slope main body is in a protruding state. 8. The rotation transmitting mechanism includes a pinion gear mounted on an output shaft of a drive motor, and a driven gear that rotates while meshing with the pinion gear, and wherein the first detecting means detects that the driven gear is in a state in which the slope body protrudes. The slope device of a vehicle according to claim 7, wherein the slope device detects that the slope body has reached a protruding state by detecting that the vehicle has reached a corresponding position.