JPH1159276A - Slope plate provided in vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To push a slope plate into a housing position quickly easily by hands in emergency when the slope plate can not be retracted by an electric motor. SOLUTION: A fixing member for fixing or unfixing a nut member 11 screwed on a feed screw 8 rotated by an electric motor 10 to or from a slide member 7 is mounted on the slide member 7 and is operated by an operating part 20 provided on the back of a slope plate 4. In an emergency when the feed screw 8 can not be rotated by the electric motor 10, the nut member 11 is unfixed from the slide member 7 and the slope plate 4 is pushed by hands to move the slide member 7 to an original position, whereby the slope plate 4 can be pressed into a housing position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope plate device mounted on a vehicle, such as a bus, which is mounted on an entrance of a vehicle to enable passengers to get on and off.

[0002]

2. Description of the Related Art Japanese Patent Application No. 9-1394 filed by the applicant as a conventional slope plate device mounted on a vehicle.
No. 38. The slope plate device mounted on this vehicle rotates the feed screw as a screw member by an electric motor to make the slide member movable, and automatically moves the slope plate connected to the slide member between the storage position and the use position. So that they can be put in and out.

[0003]

However, in such a conventional slope plate device equipped on a vehicle, a wrench such as a wrench is used in an emergency when the electric motor cannot be driven to rotate the feed screw due to a failure of the electric motor. By inserting the tool into the operation hole drilled in the upper plate and rotating the feed screw by manual operation to move the slide member to the original position, the slope plate must be put into the storage position, The rotational drive of the screw was poor in operability, and the slope plate could not be quickly put into the storage position.

SUMMARY OF THE INVENTION The present invention provides a slope plate device mounted on a vehicle which allows a slope plate to be quickly and easily inserted into a storage position by a manual operation in an emergency when it is impossible to take the slope plate in and out by an electric motor. The challenge is to do.

[0005]

SUMMARY OF THE INVENTION Therefore, a slope plate device provided in a vehicle according to the present invention has a slope plate storage portion provided below a floor surface of a vehicle entrance and having an opening toward the entrance. A slide member movably provided in the slope plate storage portion, a screw member disposed in the slope plate storage portion and rotationally driven by an electric motor, a nut member screwed to the screw member, and the nut member as a slide member. It has a stopper member for fixing or releasing the fixing, and a slope plate pivotally connected at one end to the slide member, and the slide member is fixed to the nut member by the stopper member so that the slide member is opened from the opening of the slope plate storage portion. The slope plate is stored in the slope plate storage section at the original position of the slide member between the separated original position and the operating position near the opening by the rotation of the screw member by the electric motor. In the use position, the slide member is in the operating position, and one end is supported by the slide member at the operation position of the slide member, and the other end is grounded to the inclined surface between the floor surface of the entrance / exit portion and the ground. Position. In this case, an operation section for operating a stopper member for fixing or releasing the fixing of the nut member to the slide member may be provided on the back surface of the slope plate.

According to the slope plate device provided in the vehicle of the present invention, when the screw member is rotationally driven by the electric motor, and the slide member having the nut member fixed by the stop member is moved from the original position to the operating position and stopped. The slope plate pivotally connected at one end to the slide member is output to the outside through the opening of the slope plate storage portion from the storage position stored in the slope plate storage portion, and one end side is supported by the slide member. The other end is in contact with the ground and is located at a use position where it is held in an inclined state between the floor surface of the entrance and exit and the ground, so that even a passenger using a wheelchair such as a physically handicapped can get on and off easily. Then, in a state where the slope plate is located at the use position, when the screw member is rotationally driven by the electric motor to move the slide member from the operating position to the original position and stop,
The slope plate is inserted into the slope plate storage through the opening, and is located at the storage position. Then, in an emergency, when the rotation of the screw member by the electric motor becomes impossible, the nut member is unlocked from the slide member by the stop member, and when the slope plate is manually pushed, the slide member is moved to the original position and the slope plate is moved. Can be pushed into the storage position. For this reason, the slope plate can be directly pushed into the storage position by hand in an emergency in which the electric motor cannot take the slope plate in and out, so that the slope plate can be quickly and easily put into the storage position by manual operation. Can be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a low-floor type bus as a vehicle, which is provided below a floor surface 3 of a doorway 2 with a slope plate device mounted on a vehicle, which will be described in detail later. The slope plate 4 is located at a use position where the slope plate 4 is held in an inclined state between the floor surface 3 of the entrance 2 and the ground 5 of the sidewalk installed higher than the roadway, and the slope plate 4 is formed by bending both ends upward. ing.

2 and 3, reference numeral 6 denotes a slope plate storage portion provided below the floor 3 of the entrance 2 of the low-floor type bus 1 shown in FIG. The plate material is formed by bending and forming a substantially rectangular shape having an opening on one side (downward in FIGS. 2 and 3) toward the portion 2, and the upper opening is formed on the upper plate 3.
The upper plate 3A forms a floor surface 3 of the entrance 2 as shown in FIG. 7 is a slope plate storage part 6
The slide member is provided movably inward, and is located on one side (downward in FIGS. 2 and 3) and one side facing the bottom surface of the slope plate storage portion 6 and facing the opening of the slope plate storage portion 6. The other side facing the side (upward direction in FIGS. 2 and 3)
Is formed by bending a plate material into a substantially U-shape having an opening, and the other side opening is closed by a closing plate 7D. And
The sliding member 7 is located at an original position separated from the side opening of the slope plate storage portion 6 and at an operating position close to the side opening (FIG. 2).
And the position shown in FIG. 3).
Reference numeral 8 denotes a feed screw serving as a screw member rotatably disposed in the slope plate storage portion 6. The feed screw 8 extends between the original position and the operating position of the slide member 7 and is electrically driven via reduction gears 9A and 9B. It is rotationally driven by a motor 10, and a nut member 11 is screwed around its outer peripheral portion. Electric motor 10
Is disposed in the slope plate storage section 6 near the original position of the slide member 7.

As shown in FIGS. 4 to 7, the sliding member 7 has wall members 7A and 7B suspended from the left and right with a gap in the left and right direction, and a regulating member 7C perpendicular to the wall members 7A and 7B. 7A and 7B, and the feed screw 8 is
C, a closing plate 7D is provided so as to be freely inserted. Nut member 1
1 has a bracket member 11A integrally attached with bolts 12. The bracket member 11A is formed in a substantially U-shape opening upward in FIG. 5 and in a direction perpendicular to the paper surface, and its left-right dimension is provided slightly smaller than the gap between the wall members 7A and 7B to provide a space between the wall members 7A and 7B. The upper ends (shown in FIGS. 5 and 7) of the two legs 11B and 11C are freely inserted into the regulating member 7C, and the two legs 11B and 11C are provided.
Are provided with notches 11D and 11E at the center thereof.
Reference numeral 13 denotes a stop member, which is a wall member 7A, 7B of the slide member 7.
4 to 6 are provided with stopper pieces 13A and 13B which are slidably held in the left and right directions in FIGS. 4 to 6 and enter the notches 11D and 11E of the bracket member 11A. And the stopping member 1
3 is located at the right end in the state shown in the figure, and the stopper pieces 13A, 13B
Into the notches 11B and 11C, and the stop pieces 13A,
Nut member 1 having bracket member 11A with upper portions of legs 11B and 11C sandwiched between 13B and regulating member 7C
1 is fixedly provided on the slide member 7, and the stop pieces 13A, 13B are cut out 11B, 11C by sliding to the left.
The nut member 11 is removed from the slide member 7 so as to be released. Thereby, the slide member 7
Is fixed to the nut member 11 and is movably provided between the original position and the operating position by rotating the feed screw 8 by the electric motor 10.

Reference numeral 15 denotes a bolt member.
7 and project downward. 16 is a pin member fixed to the wall member 7B, 17 is a spring, which is stretched between the bolt member 15 and the pin member 16, and the elastic member is used to stop the stopper member 13.
To the right. The stop member 13 is provided with a right end position where the side of the stop piece 13B abuts against the wall member 7B by the bias of the spring 17 to fix the nut member 11 to the slide member 7. Numeral 18 denotes a sliding member to which the nut member 11 and the bracket member 11A slide, and are arranged on the bottom surface of the slope plate housing 6 along the moving direction of the nut member 11. 19 is a wire having one end connected to the stopper member 13,
The other end is connected to an operation unit 20 (shown in FIGS. 2 and 8) for operating the stop member 13.

The operation unit 20 includes, as shown in FIGS.
A support member 22 provided on the back surface of the slope plate 4 and having a handle member 21 for manual operation fixed to the back surface of the slope plate 4
The handle member 21 has a connecting portion 21A for connecting the other end of the wire 19.
Then, the operating unit 20 moves the handle member 21 to the position shown in FIGS.
When the hand is pulled downward, the stop member 13 is slid to the left through the wire 19 against the elastic force of the spring 17, and the spring 1 is released by releasing the handle member 21.
The stopper member 13 and the handle member 21 are provided so as to be returned to the illustrated state by the elastic force of 7.

Reference numeral 23 denotes four roller members rotatably mounted on the slide member 7 about the direction perpendicular to the paper of FIG. 2 as an axis. The slide member 7 is provided in sliding contact with the two rail members 24 arranged with a gap therebetween to prevent the slide member 7 from swinging in the left-right direction in FIG. Reference numeral 25 denotes a roller member which is rotatably attached to both ends of the slide member 7 in two directions as shown in FIG. 2 in the horizontal direction of FIG. The slide member 7 is provided in sliding contact with the inside of the rail member 26 to prevent the slide member 7 from swinging in the direction perpendicular to the plane of FIG. The slide member 7 can smoothly move between the original position and the operating position by preventing the swing in the horizontal direction in FIG.

Reference numerals 27A and 27B denote two support portions arranged on the slide member 7 with a gap in the left-right direction in FIG. 2 and protrude toward the side opening side of the slope plate storage portion 6 and have tips thereof. Are connected to each other by pivotally supporting one end of the slope plate 4 so as to be relatively movable. The slope plate 4 is located at the original position of the slide member 7 at the storage position where it is stored in the slope plate storage portion 6, and one end is supported by the support portions 27 A and 27 B of the slide member 7 at the operation position of the slide member 7. The end side is provided at a use position (position shown in FIG. 2 and FIG. 3) in which the end side is grounded and held between the floor 3 of the entrance 2 and the ground 5 in an inclined state.

Hereinafter, the support portion 27A of the slide member 7 will be described with reference to FIGS.
Since the configuration is the same as that of 7A, the same portions are denoted by the same reference numerals and description thereof is omitted. A holding member 28 is provided at a tip end of the support portion 27A. A holding member 28 is formed in the holding hole 28 so as to rotatably hold a pivotal support portion 29 protruding from the back surface at one end of the slope plate 4 by a shaft member 30. 9 and 10 so as to be movable in the vertical direction. For this reason, the slope plate 4 is
7A is pivotally connected so as to be relatively movable. 3
Numeral 2 denotes a spring housed inside the support portion 27A, which urges the holding member 31 downwardly in FIGS. 9 and 10 by elastic force to abut the lower end of the holding hole 28, and moves the slope plate 4 to the slide member 7 It is provided so as to move integrally with it. Then, the slope plate 4 slides against the elastic force of the spring 32 due to the contact of an obstacle (for example, a passenger's foot or the like) with the tip of the slope plate 4 in the movement of the slope plate 4 from the storage position to the use position. 7, and the holding holes 28 are provided with the relative movement.
The holding member 31 abutting on the lower end of is provided so as to be movable upward in FIGS. 9 and 10.

A rod member 33 protrudes from a holding member 31 (a pivot portion of the slope plate 4) which rotatably holds the pivot portion 29 of the slope plate 4, and the rod member 33 is supported by a support portion 27A.
The slide member 7 extends through the obstruction plate 7D, and its tip protrudes from the slide member 7 on the side opposite to the protruding side of the support portion 27A. A dog member 34 is attached to the tip, and the dog member 34 slides the slope plate 4. The limit switch 35 attached to the closing plate 7D is operably provided by the upward movement of the holding member 31 in FIGS. 9 and 10 accompanying the relative movement with the member 7. The limit switch 35 is provided by controlling the electric motor 10 so that the slope plate 4 that moves from the storage position to the use position is returned to the storage position by operation of the dog member 34. In addition,
The limit switch 35 may be provided by controlling the electric motor 10 so as to stop the slope plate 4 moving from the storage position to the use position by the operation of the dog member 34. In FIG. 9, reference numeral 6A denotes a stop member for defining an operation position of the slide member 7, which is disposed on the bottom surface of the slope plate storage portion 6 and is provided in contact with the slide member 7 located at the operation position.

2 and 3, reference numerals 36A and 36B denote two rotatable roller members 37A and 37B, one end of which is pivotally supported by the slide member 7 and the other end of which abuts against the back surface of the slope plate 4. In the following, the support arm 3
6A will be described with reference to FIGS.
6B has the same configuration as the support arm 36A, and therefore, the same portions are denoted by the same reference numerals and description thereof will be omitted. Support arm 36A
Has a roller member 40 rotatably as a sliding contact portion in contact with a cam surface 39 formed on a cam member 38 disposed on the bottom surface of the slope plate storage portion 6 at a middle portion thereof, and has a pivotal support point for the slide member 7. The point of contact with the fulcrum X and the back surface of the slope plate 4 is referred to as an action point Y, and the point of sliding contact with the cam surface 39 is referred to as a force point Z. The support arm 36A is provided by vertically moving the point of action Y about the fulcrum X in accordance with the vertical movement (the horizontal direction in FIG. 11) of the force point Z along the shape of the cam surface 39. With the movement, the support portion 27A of the slide member 7
It is provided so as to be able to be freely moved in and out between the storage position and the use position while being lifted and lowered in the left-right direction in FIG. 11 around a pivot point pivoted at the tip. In FIG. 11, the roller member 37A of the support arm 36A is provided in contact with the reinforcing frame 4A provided on the back surface of the slope plate 4.

In FIG. 2 and FIG. 3, reference numeral 41 denotes an opening / closing lid for opening and closing the opening of the slope plate housing portion 6, which is rotatably provided below the opening. Reference numeral 42 denotes an auxiliary plate for closing a gap existing between the slope plate 4 and the floor surface 3 of the entrance / exit portion 2 at a use position of the slope plate 4, and is provided rotatably above the opening of the slope plate storage portion 6. ing. Then, as shown in FIGS. 9 and 11, the opening / closing lid 41 is rotatably provided by a hinge 43,
Due to the elastic force of the torsion spring of the hinge 43 (FIG. 9)
(Rightward in FIG. 11), and the slope plate 4 is moved from the use position to the storage position to rotate upward by the elastic force of the torsion spring to close the opening and to be used from the storage position of the slope plate 4. The opening is opened by being pushed downward by the slope plate 4 against the elastic force of the torsion spring by the movement to the position and rotating downward. The auxiliary plate 42 is pushed by the slope plate 4 when the slope plate 4 moves from the storage position to the use position and rotates upward, and also moves downward by its own weight when the slope plate 4 moves from the use position to the storage position. It is provided. Further, the auxiliary plate 42 has its rotation center on the inner side of the slope plate storage portion 6 than the rotation center of the opening / closing lid 41, that is, FIGS.
1 and the length of the torsion spring (up and down dimension in FIGS. 9 and 11) is shorter than the opening / closing lid 41. The opening / closing lid 41 that is rotated upward by elastic force and closes the opening is provided so as to be pushed by the upward rotation to assist the downward rotation, and the opening / closing lid 41 is closed with the opening closed. Are provided on top of each other.

Next, the operation of the above configuration will be described. FIG.
3 to 3 show that the slide member 7 is stopped at the operating position, the slope plate 4 has one end supported by the slide member 7 and the other end grounded to the ground 5 so as to be in contact with the floor 3 of the entrance 2. Ground 5
It is located at a use position that is held in an inclined state between the passengers and the passenger, who can use a wheelchair such as a physically handicapped person, can easily get on and off. Then, as shown in FIG. 4 to FIG.
1 is fixed to the slide member 7 by the stopper member 13. Further, as shown in FIGS. 9 and 11, the opening / closing lid 41 holds the support arms 36A, 3A in the position where the slope plate 4 is used.
The auxiliary plate 42 is rotated upward and the slope plate 4 and the floor surface 3 of the entrance / exit portion 2 are kept in a state in which the rotation of the auxiliary plate 42 is opened. And closes the gap between them.

1 to 3 in which the slope plate 4 is at the use position, the feed screw 8 is driven to rotate by the electric motor 10 to move the slide member 7 from the operating position to the original position and stop. By the movement of the slide member 7 from the operating position to the original position, the support arms 36A and 36B
As the force point Z shown in FIG. 11 moves up along the cam surface 39, the action point Y moves up about the fulcrum X, and the slope plate 4 supports the slide member 7 as the action point Y moves up. 27
A and 27B are lifted around a pivot point pivotally supported at the tip of the tip, and are moved from the inclined state to the horizontal state, are inserted into the slope plate storage section 6 through the opening of the slope plate storage section 6, and are located at the storage position. I do. And the opening / closing lid 41 is hinge 4
3 to rotate upward and close the opening by the elastic force of the torsion spring. Further, the auxiliary plate 42 is rotated downward by its own weight and is superimposed on the inside of the opening / closing lid 41.
The lid 41 is pushed by the upward rotation of the lid 41 to assist the downward rotation.

When the slope plate 4 is in the storage position, the feed screw 8 is rotated in the opposite direction by the electric motor 10 to move the slide member 7 from the original position to the operating position shown in FIGS. When the slide member 7 moves from the original position to the operating position, the support arms 36A and 36B move the support point 36A about the fulcrum X as the force point Z moves down along the cam surface 39. Fig. 1
In the state shown in FIG. 1, the slope plate 4 is pushed out of the storage position stored in the slope plate storage unit 6 through the opening of the slope plate storage unit 6 by pushing the opening / closing lid 41 and the auxiliary plate 42,
With the downward movement of the action point Y, the support portion 17A of the slide member 7
It is lowered about the pivot point pivoted at the tip of 17B to be inclined from the horizontal state, and is located at the use position shown in FIGS. Then, the opening / closing lid 41 is moved from the storage position of the slope plate 4 to the use position by the hinge 43.
1 is pushed downward by the slope plate 4 against the elastic force of the torsion spring, and the opening shown in FIGS. 1 to 3 is opened. The auxiliary plate 42 is pushed upward by the slope plate 4 as the slope plate 4 moves from the storage position to the use position, and rotates upward, and the slope plate 4 and the floor surface of the entrance 2 shown in FIGS. 3 is closed.

In the movement of the slope plate 4 from the storage position to the use position, if an obstacle such as a passenger's foot contacts the tip of the slope plate 4, the slope plate 4 resists the elastic force of the spring 32. The limit switch 35 is operated by moving relative to the slide member 7, and the electric motor 10 is controlled by the operation of the limit switch 35 to rotate in the opposite direction to return the slope plate 4 to the storage position, or to control the electric motor 10. Then, the drive is stopped and the movement of the slope plate 4 is stopped. For this reason, it is possible to automatically insert and remove the slope plate 4 with the electric motor 10 without deteriorating safety.

A spring 32 for urging the slope plate 4 by an elastic force is provided on the slide member 7 so as to protrude from one end of the slope plate 4 at one end so as to be relatively movable.
A rod member 33 housed in the inside of 7B and having a dog member 34 for actuating a limit switch 35 attached to a tip thereof is protruded from a pivotal support point of the slope plate 4 to support portions 27A, 27A.
B, the spring 32 and the rod member 33 can be arranged by using the support portions 27A and 27B that pivotally support one end of the slope plate 4 so as to be relatively movable.
A special space for disposing the rod member 33 can be eliminated. Since the switch for controlling the electric motor 10 is the limit switch 35 operated by the dog member 34, the operation of the switch can be ensured.

Further, supporting arms 36A and 36B are provided so as to pivotally support the slide member 7 and abut against the back surface of the slope plate 4. The supporting arms 36A and 36B have sliding contact portions which come into contact with the cam surface 39. The pivot point between the slide member 7 and the support member 36A, 36B is a fulcrum X, and the support arms 36A, 36B.
The point of contact with the back surface of the slope plate 4 is defined as an action point Y, and the sliding contact portion between the support arms 36A and 36B is defined as a force point Z.
6A and 36B are movements between the original position of the slide member 7 and the operation position, and as the force point Z moves up and down along the shape of the cam surface 39, the action point Y moves up and down around the fulcrum X, The plate 4 is moved up and down between the storage position and the use position while being lifted and lowered around the pivot point to the slide member 7 as the action point Y moves up and down. Therefore, the lifting and lowering operation of the slope plate 4 is performed by the cam surface 39.
Can be set according to the shape of the slope plate 4, and an optimum lifting and lowering operation according to the length of the slope plate 4 (the dimension in the vertical direction in FIGS. 2 and 3) can be obtained.

When the slope plate 4 is moved from the use position to the storage position, the slope plate 4 is rotated upward by the elastic force of the torsion spring of the hinge 43 to close the opening of the slope plate storage section 6 and to close the slope plate 4. The electric motor 1 is provided with the opening / closing lid 41 which is pushed by the slope plate 4 against the elastic force by the movement from the storage position to the use position and is rotated downward to open the opening.
The opening can be automatically opened and closed when the slope plate 4 is moved in and out by the drive of 0, so that a special operation for opening and closing the opening can be dispensed with.

When the slope plate 4 is moved from the storage position to the use position, it is pushed upward by the slope plate 4 and pivots upward, and the slope plate 4 and the floor surface 3 of the entrance / exit portion 2 are used at the use position of the slope plate 4. Since the auxiliary plate 42 that closes the gap existing between the passenger and the passenger is provided, the safety when the passenger gets on and off the passenger can be further ensured. The auxiliary plate 42 is rotated downward by its own weight by moving the slope plate 4 from the use position to the storage position, and the downward rotation is further assisted by the upward rotation by the elastic force of the opening / closing lid 41. Therefore, the auxiliary plate 42 can be automatically and promptly and downwardly rotated with the movement of the slope plate 4 from the use position to the storage position.

With this operation, the slide member 7 stops at the operation position and the slope plate 4 is at the use position.
In the state of FIG. 3, in the case of an emergency in which the electric motor 10 cannot rotate the feed screw 8 due to a failure of the electric motor 10 or consumption of a battery as a voltage source of the electric motor 10, the stop member 13 is moved. When sliding to the left from the state of FIG. 4 to FIG.
13B is a bracket member 11A that the nut member 11 has
The nut member 11 is released from the cutouts 11D and 11E of the slide member 7 and is unlocked. When the slope plate 4 is manually pushed upward in FIGS. Can be moved to the original position and the slope plate 4 can be pushed into the storage position. For this reason, the slope plate 4 can be directly pushed into the storage position by hand in an emergency when the electric motor 10 cannot put the slope plate 4 in and out. Compared to those that are driven to rotate by manual operation,
The slope plate 4 can be quickly and easily put into the storage position by manual operation. Then, when the rotation of the feed screw 8 by the electric motor 10 is enabled by the repair, the nut member 11 is moved to the position of the slide member 7 which stops the nut member 11 at the original position by the rotation drive of the feed screw 8 and the bracket provided on the nut member 11 The upper ends of the legs 11B and 11C of the member 11A abut against the regulating member 7C of the slide member 7, and in this state, the stopper member 13 is returned to the state shown in FIGS. Fix it. In an emergency, when the slide member 7 is stopped at the original position and the slope plate 4 is at the storage position, the nut member 11 is unlocked from the slide member 7 by the stopper member 13 and the slope plate 4 is used. The leg portion 11 of the bracket member 11A provided on the nut member 11 may be pulled out by hand toward the position.
Since the upper ends of B and 11C abut on the regulating member 7C of the slide member 7 to prevent the slide member 7 from moving, the slope plate 4 cannot be pulled out to the use position.

Further, since the operation part 20 for operating the stopper member 13 for fixing and releasing the fixing of the nut member 11 to and from the slide member 7 is provided on the back surface of the slope plate 4, the operation part 20 can be arranged. A special place can be made unnecessary, and an increase in the size of the entire apparatus can be suppressed. The operation unit 20 releases the fixing of the nut member 11 to the slide member 7 by the stopper member 13 by manually pulling the handle member 21 downward in FIGS. 2 and 8, and releases the hand from the handle member 21. As a result, the nut member 11 is fixed to the slide member 7 by the stopper member 13, so that the nut member 11
The operation of the stop member 13 for fixing or releasing the fixation to the slide member 7 can be easily performed.

FIGS. 12 to 14 show another embodiment of the present invention. The same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Only different portions will be described. The slide member 45 is provided with wall members 45A and 45B hanging down with a gap in the left-right direction in FIGS.
There is a gap between the tips of the hanging portions A and 45B and the bottom surface of the slope plate housing portion 6, and a bracket member 46 attached to the nut member 11 is disposed between the wall members 45A and 45B. The bracket member 46 is formed in a substantially U-shape with an opening in the vertical direction in FIG. 12 and the upward direction in FIG.
A, 46B are provided so as to be freely inserted between the wall members 45A, 45B, and the reinforcing members 46 are provided in a direction orthogonal to the two leg portions 46A, 46B.
C is fixed to the legs 46A and 46B, and the reinforcing member 46C closes the opening in the upward direction of FIG.

The bracket member 46 is formed by bending the lower part of one leg 46A to the left in FIGS. 12 and 13 and passing below the wall member 45A. It has a bent portion 46F extending to the side of the member 45A, and the leg portion 46B and the bent portion 46F have through holes 46D and 46E, respectively. 47
Is a plate-shaped stopper member, the main body 47A of which is a wall member 45B.
And the spring mounting member 48 fixed to the main body portion 47A is inserted into the uppermost portion of the wall member 45A, and the main body portion 47A does not interfere with the bracket member 46 in the left-right direction of FIGS. It is slidably provided. The stopper member 47 is formed by bending one end of the main body 47A, through which the wall member 45B is inserted, downward, and bending and forming the bent end portion to the left in FIGS. 12 and 13 to form the lower portion of the wall member 45B. Insert the leg 4 of the bracket member 46
6B has a stop piece 47B that penetrates a stop hole 46D penetrating therethrough. Further, the stopper member 47 is formed by bending the other end of the main body portion 47A to which the spring mounting member 48 is fixed downward,
The bent tip portion is bent leftward in FIGS. 12 and 13 to insert a stopper piece 47C that penetrates a lower portion of the wall member 45A and enters a stopper hole 46E penetrating the bent portion 46C of the bracket member 46. Have.

The stopper member 47 has a wire attachment member 49 fixedly attached to one end of the main body portion 47A. The wire attachment member 49 has a wire 19 connecting the other end to the operating portion 20 (shown in FIGS. 2 and 8). One end is connected. Spring mounting member 48
The spring 50 is attached to the
And is stretched between the bolt member 51 and the stop member 47 by the elastic force thereof. The stop member 47 is located at the left end by the elastic force of the spring 50 in the state shown, and the stop pieces 47B and 47C are inserted into the stop holes 46D and 46E, and the nut member 11 having the bracket member 46 is provided.
Is fixedly provided on the slide member 45 and the spring 50
Stopper pieces 47B, 47 by sliding to the right against the elastic force of
C comes out of the retaining holes 46D and 46E, and the nut member 1
1 is released from the fixing to the slide member 45.
52A is a sliding member on which the bent portion 46C of the bracket member 46 slides, and 52B is a leg portion 46 of the bracket member 46.
B is a sliding contact member with which sliding contact is made. Each sliding contact member is formed in a substantially L-shape, and is disposed on the bottom surface of the slope plate housing portion 6 along the moving direction of the nut member 11. The sliding member 45 has a closing plate 45 so as not to close the opening between the wall members 45A and 45B.
Two C and 45D are provided.

The operation of the electric motor 1 is similar to that of the first embodiment.
0, the slide member 45 is moved between the original position and the operating position by the rotation drive of the feed screw 8, and the slope plate 4 is moved to the storage position by moving the slide member 45 to the original position. By moving to the operating position, the slope plate 4 is located at the use position.

With this operation, the electric motor 10 drives the feed screw 8 to rotate while the slide member 45 stops at the operating position and the slope plate 4 is at the use position (shown in FIGS. 1 to 3). When the stop member 47 is slid to the right from the state shown in FIGS. 12 and 13 in an emergency when the stop member 47 becomes inoperable, the stop pieces 47B and 47C of the stop member 47 have the stop holes 46D and 46D of the bracket member 46 provided in the nut member 11.
46E, and the nut member 11 is
5 and the slope plate 4 is released.
By pushing (upward in FIGS. 2 and 3) by hand, the slide member 45 can be moved to the original position and the slope plate 4 can be pushed into the storage position. For this reason, as in the past,
As compared with the embodiment in which the feed screw is rotationally driven by a manual operation using a tool in an emergency, the slope plate 4 can be quickly and easily put into the storage position by a manual operation as in the embodiment.

The nut member 11 is connected to the slide member 45.
The operation unit 20 for operating the stopper member 47 for fixing or releasing the operation unit can be provided on the back surface of the slope plate 4 as in the case of one embodiment, so that a special place for disposing the operation unit 20 is unnecessary. In addition, the size of the entire apparatus can be suppressed. In addition, since the operation unit 20 has the same configuration as that of the embodiment, the operation of the stop member 47 for fixing or releasing the fixing of the nut member 11 to the slide member 45 can be easily performed.

Further, the main body 47A of the stop member 47
Is provided without interfering with the bracket member 46 provided on the nut member 11, is provided without closing the opening between the wall members 45A and 45B, and a member corresponding to the regulating member 7C shown in one embodiment is provided. Not
The slide member 45 is a nut member 11 formed by a stopper member 47.
13 and 14 can be moved not only in the upward direction but also in the downward direction, so that, in an emergency, the slide member 45 stops at the original position and the slope plate 4 is at the storage position. Then, the nut member 11 is
Is released from the slide member 45 and the slope plate 4 is pulled out by hand, the slide member 45 can be moved to the operating position and the slope plate 4 can be pulled out to the use position.

In the embodiment and the other embodiments of the present invention, the feed screw 8 is driven to rotate by the electric motor 10, but it goes without saying that a ball screw may be used instead of the feed screw 8.

[0036]

As described above, according to the first aspect of the present invention,
In the case of an emergency where the slope plate cannot be taken in and out by the electric motor, the slope plate can be directly pushed into the storage position by hand, so that the feed screw is rotated by manual operation using a conventional tool. In comparison with the above, the slope plate can be quickly and easily put into the storage position by manual operation.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, an operating portion for operating a stop member for fixing or releasing the fixing of the nut member to the slide member is provided. A special place can be made unnecessary, and an increase in the size of the entire apparatus can be suppressed.

[Brief description of the drawings]

FIG. 1 is a schematic view of a slope plate device mounted on a vehicle according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line BB of FIG. 3 of the slope plate device mounted on the vehicle according to the embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is an enlarged sectional view taken along line CC of FIG. 2;

FIG. 5 is a sectional view taken along the line DD of FIG. 4;

FIG. 6 is a view seen from an arrow E in FIG. 5;

FIG. 7 is a sectional view taken along line II of FIG. 5;

FIG. 8 is an enlarged sectional view of a main part F of FIG. 2;

FIG. 9 is an enlarged sectional view taken along line GG of FIG. 2;

FIG. 10 is a sectional view taken along line JJ of FIG. 9;

FIG. 11 is an enlarged sectional view taken along line HH in FIG. 2;

FIG. 12 shows another embodiment of the present invention and is a cross-sectional view of a portion corresponding to FIG.

FIG. 13 is a cross-sectional view taken along line KK of FIG.

FIG. 14 is a diagram viewed from an arrow L in FIG. 13;

[Explanation of symbols]

 1 vehicle 2 entrance and exit 3 floor 4 slope plate 5 ground 6 slope plate storage 7, 45 slide member 8 feed screw (screw member) 10 electric motor 11 nut member 13, 47 stopper member 20 operation unit

Claims (2)

[Claims] 1. A slope plate storage portion provided below a floor surface of an entrance / exit portion of a vehicle and having an opening toward the entrance / exit portion, a slide member movably provided in the slope plate storage portion, and a slope plate storage portion. A screw member that is arranged and driven by an electric motor to rotate, a nut member that is screwed to the screw member, a stop member that fixes or releases the nut member to or from the slide member, and one end side pivotally supported by the slide member And a sliding member fixed to a nut member by a stopper member, and a sliding member between an original position separated from the opening of the slope plate housing portion and an operating position close to the opening by an electric motor. The slope plate is movably provided by the rotary drive, and the slope plate is located at the storage position stored in the slope plate storage portion at the original position of the slide member, and one end side slides at the operation position of the slide member. Characterized in that the slope is located at a use position where it is supported by a sliding member and the other end is in contact with the ground and held in an inclined state between the floor surface of the entrance and exit and the ground. Board equipment. 2. The vehicle according to claim 1, wherein an operation section for operating a stop member for fixing or releasing the fixing of the nut member to the slide member is provided on the back surface of the slope plate. Slope plate equipment.