JPH0939666A - Raising-lowering device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously pull out two-stage steps by one time operation, and inexpensively manufacture a raising-lowering device. SOLUTION: A lower stage step 23 is supported with a fixed base bracket 20 through parallel links 21 and 22, and an upper stage step 25 is rotatably installed by a shaft 24, and the lower stage step 23 and the upper stage step 25 are connected to each other by an interlocking lever 26. When they are housed in a step part 12, they can be used as steps as they are. The lower stage step 23 is positioned under the step part 12 when it pulled out according to it necessity, and since the upper stage step 25 is positioned on the step part 12 by the interlocking lever 26, two-stage steps are formed of the lower stage step 23 and the upper stage step 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating device for a vehicle which is housed in a step portion and is pulled out for use.

[0002]

2. Description of the Related Art Conventionally, there is a prior art disclosed in Japanese Utility Model Laid-Open No. 7-24654 as a lifting device for a vehicle of this type. In this, the upper step and the lower step are connected by a parallel link so that they can move in parallel, and the upper step is supported by a slide rail extending outward from the vehicle body side. Then, the upper step and the lower step are folded and stored along a rail in a recess formed in the lower part of the vehicle compartment floor, and when in use, the driving motor pushes the upper step and the lower step out of the vehicle body, and then the lower step. Is manually pulled out to form two steps.

[0003]

However, in the above-mentioned conventional vehicle lifting device, the upper step and the lower step are simultaneously pushed out of the vehicle by the drive motor, and then the lower step is manually pulled out during use. Therefore, there is a problem that the pulling operation must be performed twice. Further, since the drive motor is used, there is a problem that a motion conversion mechanism or the like is required, which makes the device complicated and expensive.

The present invention has been proposed in view of the above-mentioned problems of the prior art, and provides an elevating device for a vehicle that allows two steps to be simultaneously drawn out by one operation and can be manufactured at low cost. The purpose is to provide.

[0005]

In order to achieve the above-mentioned object, the vehicle elevating / lowering device according to the present invention supports the lower step on a fixed side through a parallel link and can rotate the upper step. When the lower step and the upper step are connected by the interlocking lever and the lower step is stored in the step part lower than the passenger compartment floor,
The upper step stands up in the step part,
The lower step is pulled out to a lower position than the step part outside the vehicle, and the upper step is positioned on the step part by the interlocking lever.

[0006] The lower step may be connected to the parallel link at a position where the connecting shaft of the lower step and the parallel link is inside the vehicle relative to the position of the connecting shaft of the parallel link with respect to the vehicle during storage. preferable.

The lower step is preferably connected to the fixed side by a gas spring that constantly urges the lower step to the storage position.

The lower step and the upper step are:
It is preferable that the unit is formed by being attached to the base body, and the unit is attached to the step portion.

[0009]

In the vehicle lifting device according to the present invention, the lower step is supported on the fixed side through the parallel link, and
The upper step is rotatably attached, and the lower step and the upper step are connected by an interlocking lever,
When the lower step is stored in the step section lower than the passenger compartment floor, it is used as it is. If necessary, when the lower step is pulled out of the vehicle, the lower step is positioned below the step portion, and the upper step is positioned above the step portion by the interlocking lever, so the lower step and the upper step are two step steps. Used as.

When the lower step is connected to the parallel link at a position where the connecting shaft of the lower step and the parallel link is inside the vehicle of the connecting shaft of the parallel link with respect to the vehicle during storage. Since the center of gravity of the lower step is located on the vehicle side beyond the dead point, it is stored in a stable state.

If the lower step is connected to the fixed side by a gas spring that always urges the lower step to the storage position, the lower step can be stored easily without requiring a large force.

The above lower step and upper step are
When the unit is formed by being attached to the base and is attached to the step portion by the unit, it is easily attached and detached as necessary.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a vehicle lifting device according to the present invention will be described below with reference to the drawings. 1 is an exploded perspective view, FIG. 2 is a side view showing a stored state, FIG. 3 is a side view showing a state in the middle of being pulled out, FIG. 4 is a side view showing a pulled out state, and FIG. FIG. 6 is a diagram showing the right side portion of the AA arrow line, and FIG. 6 is a diagram showing the right side portion of the BB arrow line in FIG. 4.

The vehicle lifting device according to the present invention includes a door 10
The base bracket as a base body fixed to the step portion 12 of the vehicle as a fixed side, as shown in FIG. 20, lower step 2
3 is detachably attached via parallel links 21, 22. Further, the upper step 25 is rotatably attached to the shaft 24. Then, the lower step 23 and the upper step 25 are connected by the interlocking lever 26. Further, the base bracket 20 and the lower step 23 are connected by the gas spring 27. As a result, a unit is formed and attached to the step portion 12 as shown in FIG. In FIG. 1, the parallel link 2
1, 22, the interlocking lever 26, the gas spring 27, etc.
Although provided on both sides of the base bracket 20, those on the left side of the drawing are omitted.

Next, the base bracket 20 will be described. As shown in FIG. 1, outer plates 32, 32 are attached to both sides of the substrate 31 in the width direction, respectively.
Mounting parts 33, 33 are formed on the upper part of the second part 2. The inner plates 36, 36 are provided inside the outer plates 32, 32 in parallel with the outer plates 32, 32, respectively. The inner plate 36 is connected to the outer plate 32 by the parallel links 21, 22.
The shaft pins 37, 38 and the shaft 24 of the upper step 25 are supported. Further, as shown in FIG. 6, the inner plate 36 is formed so as to receive the upper step 25 rotated by the upper side 36A thereof. The shaft pins 37 and 38 are clips 37A,
38A is fixed to prevent slipping off. Then, as shown in FIG. 2, the base bracket 20 to which the lower step 23, the upper step 25 and the like are attached is fixed to the floor surface 12B and the side wall 12A by the bolts 34 and 35 by the board 31 and the attachment portions 33 and 33, respectively. To be done.

Next, the lower step 23 will be described. As shown in FIGS. 1 and 5, side plates 41, 41 are provided upright on both sides of the step plate 40.
Grips 42, 42 for drawer and storage operation are formed on the upper part of the. Further, parallel link mounting shaft pins 43 and 44 are provided on the outer sides of the side plates 41 and 41, respectively, and the lower step 23 is performed by the parallel links 21 and 22 provided between the side plates 41 and 41 and the shaft pins 37 and 38 of the base bracket 20. Is supported so that it can be pulled out. Here, the parallel link mounting shaft pin 43 is formed in two stages of a shaft thick portion 43A and a shaft detail 43B, and the parallel link 21 has a clip 4 on the shaft thick portion 43A.
It is swingably fixed at 3C. The parallel link 22 is swingably fixed to the shaft pin 44 with a clip 44A. As shown in FIG. 2, the outer end portion of the step plate 40 is formed with a side L-shaped leg 45 that abuts on the substrate 31 when the lower step 23 is stored in the step portion 12. Further, the receiving member 46 of the step plate 40 is attached to the substrate 31 of the base bracket 20.

As shown in FIGS. 1 and 6, in the upper step 25, bearing plates 51, 51 are attached to both sides of the step plate 50, respectively, and are rotated to the base bracket 20 by the shaft 24 via the bearing plates 51, 51. It is movably supported. The receiving member 54 when the upper step 25 is erected is provided on the mounting portion 33 provided on the base bracket 20. As shown in FIGS. 4 and 6, the reinforcing plate 55 is attached to the back surface of the step plate 50, but it is omitted in other drawings.

Next, the parallel links 21 and 22 will be described. As shown in FIG. 4, the parallel link mounting shaft pins 43 and 44 provided in the lower step 23 are provided on the upper portion of the side plate 41, and the shaft pins 37 and 38 provided on the base bracket 20 are provided on the vehicle outer side portion, respectively. The parallel links 21 and 22 are arranged so as to be housed between the outer side plate 32 and the inner side plate 36 of the base bracket 20 as shown in FIG. 3 and 4, the outer plate 36 on the front side of the drawing is omitted.

Here, when the lower step 23 is housed, as shown in FIG. 2, the parallel link mounting shaft pin 43,
The shaft 44 is located inside the vehicle beyond the shaft pins 37 and 38 beyond the dead points for the shaft pins 37 and 38. When the lower step 23 is pulled out, as shown in FIG.
The parallel link mounting shaft pins 43, 44 and the parallel link mounting shaft pins 43, 44 and the shaft pin 3 are arranged so that they are located outside the vehicle beyond the shaft pins 37, 38 beyond the dead points.
The positions of 7, 38 have been determined.

Next, the interlocking lever 26 for the lower step 23 and the upper step 25 will be described with reference to FIG. When the lower step 23 is pulled out, the link shaft 60 is provided on one of the links 22 on the lower side, the connecting shaft 61 is provided on the bearing plate 51 of the upper step 25, and the interlocking lever 26 is provided therebetween. Then, the stopper 6 that comes into contact with the upper side of the interlocking lever 26 is attached to the upper link 21.
2 is provided, and the pull-out position of the lower step 23 is determined.

As shown in FIG. 5, the gas spring 27 has one end attached to the shaft detail 43B of the parallel link attachment shaft pin 43 on the outside of the base bracket 20 and the other end attached to the outer plate 32 of the base bracket 20. Attached to the shaft pins 63 that are erected, and clip 43
It is fixed by D and 63A respectively. In this case, the lower step 23 is constantly urged to the storage position by the gas spring 27.

The parallel links 21, 22, the interlocking lever 26, the gas spring 27, etc. are covered with a cover 66 attached to the side plate 41 of the lower step 23 with screws 65, as shown in FIGS. . However, it is omitted in other figures.

With the above-described structure, when the vehicle is traveling or when the vehicle is normally moved up and down, as shown in FIG. 2, the lower step 23 is housed in the step portion 12, and the upper step 25 is erected on the side wall 12A side of the step portion 12. are doing. In this case, the parallel link mounting shaft pins 43, 4 provided in the lower step 23
4 is shaft pins 37 and 38 provided on the base bracket 20.
Since the vehicle is located inside the vehicle beyond the dead point, the lower step 23 is stably stored. Therefore,
The step plate 40 of the lower step 23 can be used as it is as a step. Here, since the upper step 25 is pushed by the interlocking lever 26 and stands up on the side wall 12A side of the step portion 12, there is no obstacle in moving up and down.

Next, a case where it becomes necessary to reduce the height dimension between steps such that an elderly person moves up and down will be described. First, the left and right side plates 41 of the lower step 23,
Grasp the operating grips 42, 42 provided on the upper part of 41,
As shown in FIG.
To the outside of the vehicle. As a result, the interlocking lever 26
Rotates the upper step 25 to the left in the figure, and by the pulling operation of the subsequent lower step 23, as shown in FIG.
The stopper 62 contacts the upper side of the interlocking lever 26. Here, the lower step 23 is positioned below the floor surface 12B of the step portion 12, and the upper step 25 is positioned below the floor surface 12B.
Is positioned on top.

In this case, the stopper 62 is connected to the interlocking lever 26.
Since the lower step 23 abuts on the upper side, the lower step 23 is stably positioned, and the upper step 25 falls on the inner plate 36 of the base bracket 20 to be received, and thus is stably positioned. Then, as shown in FIG. 7, the vehicle compartment floor 11, the upper step 25 and the lower step 23 are arranged at substantially equal intervals, and the height dimension is smaller than the state in which the lower step 23 is housed. Therefore, the vehicle can be easily moved up and down. It will be like this.

When storing, first the operating grip 4
Grasp 2 and lift it up, and push it toward the room when it is in the middle of Fig. 3. At this time, the lower step 23 is connected to the lower step 23 and the base bracket 20 by the gas spring 27.
The lower step 23 can be stored with a small force because it is connected with.

Since the lower step 23, the upper step 25 and the like are attached to the base bracket 20 to form a unit, the bolt 3 can be used as necessary.
4, 35 can be easily attached and detached.

[0028]

As described above, in the vehicle elevating device according to the present invention, the lower step is supported on the fixed side via the parallel link, and the upper step is rotatably attached, and Since the lower step and the upper step are connected by the interlocking lever, when the lower step is stored in the step portion lower than the passenger compartment floor, it can be used as it is as the first step. If necessary, when the lower step is pulled out of the vehicle and positioned below the step portion, the upper step is interlocked and pivots on the step portion, so that the lower step and the upper step can be performed by one operation. Two steps are formed. Further, since the lower step and the upper step are simply connected by the interlocking lever, the device configuration is simple and can be manufactured at low cost.

If the lower step is connected to the parallel link such that the position of the connecting shaft between the lower step and the parallel link when the parallel link is housed is inside the vehicle relative to the position of the connecting shaft of the parallel link with respect to the vehicle, the lower step Is located inside the vehicle beyond the dead point. Therefore, the lower step is stably stored in the step portion and can be used with peace of mind.

When the lower step is connected to the vehicle by the gas spring for constantly urging the lower step to the storage position, the urging force of the gas spring acts during storage, so that a large force can be easily applied. Can be stored.

The above lower step and upper step are
Since the unit is formed by being attached to the base body and is attached to the step portion by the unit, it is convenient because it can be easily attached and detached as necessary.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment.

FIG. 2 is a side view showing a state in which steps are stored in the embodiment.

FIG. 3 is a side view showing a state in which a step in the embodiment is being pulled out.

FIG. 4 is a side view showing a state in which a step in the embodiment is pulled out.

5 is a diagram showing a right side portion of an AA arrow line in FIG.

6 is a diagram showing a right side portion of a BB arrow line in FIG.

FIG. 7 is an explanatory diagram of an effect in the example.

[Explanation of symbols]

 10 Door 11 Vehicle Cabin Floor 12 Step Part 20 Base Bracket 21, 22 Parallel Link 23 Lower Step 24 Shaft 25 Upper Step 26 Interlocking Lever 27 Gas Spring

Claims (4)

[Claims] 1. A fixed side is supported via a parallel link,
It is stored in the step part lower than the passenger compartment floor, and when used,
When the lower step is pulled out from the step portion outside the vehicle and is rotatably attached to the fixed side and is connected to the lower step by an interlocking lever, and the lower step is housed in the step portion, An elevating step for the vehicle, comprising: an erecting step, an upper step positioned on the step portion in conjunction with the lower step when the lower step is pulled out of the vehicle. apparatus. 2. The lower step is connected to the parallel link such that the position of the connecting shaft between the lower step and the parallel link is inside the vehicle relative to the position of the connecting shaft of the parallel link with respect to the vehicle during storage. The elevator device for a vehicle according to claim 1, wherein 3. The elevating device for a vehicle according to claim 1, wherein the lower step is connected to the fixed side by a gas spring that constantly biases the lower step to the storage position. 4. The lower step and the upper step are:
The vehicle lifting device according to claim 1, 2 or 3, wherein a unit is formed by being attached to the base body, and the unit is attached to the step portion.