JP2526574Y2 - Step equipment for vehicles - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step device for a vehicle which is disposed below a lower end of a door opening formed in a vehicle body.

[0002]

2. Description of the Related Art Conventionally, in a vehicle body in which the height from the ground to the body floor panel is set high, such as a wagon vehicle, steps are provided for convenience in getting on and off. I have. However, in the existing steps, there is a limit to lowering the contact height in consideration of the contact on rough roads, and when an infant, an old man, a woman wearing Japanese clothes, etc. gets on and off. Was still inconvenient because the distance from the ground to the steps (usually around 400 mm) was still high.

Therefore, as shown in FIG.
No. 60048), a box-shaped bracket 3 is fixed to a vehicle body frame 2 located below a door opening (not shown) of the vehicle body 1, and the parallel link mechanism 4 supported below the bracket 3 is turned. Step 5 which is displaced by movement is provided, and an electric motor for driving (not shown) arranged inside the bracket 3 is electrically connected so as to be linked with opening and closing of the door, so that the step 5 is connected to the side of the vehicle body 1. There is a step device a configured to appear and disappear from the device.

When the rider rides in step 5, the load from the occupant acts in the direction shown by arrow A in FIG. 6. A stopper mechanism for preventing movement was required. As the stopper mechanism, a worm gear and a worm wheel (both not shown) are used as power transmission means from the electric motor to the parallel link mechanism 4.

[0005]

By the way, in the step device a for a vehicle constructed as described above, the use of the worm gear causes the parallel link mechanism 4 in the use state in which the step 5 is projected. When a strong horizontal load is applied from the side of the vehicle body, the step 5 or the worm gear / worm wheel is damaged.

The present invention has been made in view of the above circumstances, and has a simple structure, but is capable of displacing the ground height between the use state and the storage state, and is adversely affected by obstacles when the vehicle is running. Not only can it be used without the need for a special stopper device, it can prevent the step from moving due to the load during riding, and when it receives an impact from the side of the vehicle body, its impact force It is an object of the present invention to provide a step device for a vehicle which can store steps by using the step device.

[0007]

According to the present invention, there is provided a step device for a vehicle, which is disposed below a lower end of a door opening formed in a vehicle body. The step device includes a guide rail fixed to the vehicle body and extending in a width direction of the vehicle body, and a supported portion is slidably supported by the guide rail so that the step device can protrude and retract from a side surface of the vehicle body. The guide rail is provided with an inclined portion which is inclined forward and backward with respect to the sliding direction of the step portion, and the step portion is in a protruding state. The point is that the supported portion of the step portion is supported by the inclined portion.

[0008]

In order to use the step device in such a configuration, the step portion is slid on the guide rail to project from the side surface of the vehicle body.

At this time, since the supported portion is located on the inclined portion, the load at the time of riding is received so that the step portion is not pulled back.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) Next, an embodiment of a step device for a vehicle according to the present invention will be described with reference to FIGS.

FIG. 1 is a sectional view showing a state in which a step device for a vehicle according to the present invention is mounted on a vehicle body, FIG. 2 is an exploded perspective view of the step device, and FIGS. 3 (A), (B) and (C) are similar. FIG. 4 is a perspective view of the vehicle body showing a state in which the step device of the present invention is used, showing a cross section of the guide rail showing an example of support of the supported portion.

In FIG. 4, a step device 20 is provided below a door opening 12 formed in the vehicle main body 11 so as to be able to protrude and retract from the side surface of the vehicle main body 11.
4, 13 is a front door, 14 is a sliding rear door, 15 and 16 are seats fixed to a vehicle body floor 17,
18 is a step.

As shown in FIGS. 1 and 2, the step device 20 includes a guide rail 21 fixed to the vehicle body 11;
Step portion 22 slidably supported by guide rail 21
And a drive mechanism 23 for slidingly displacing the step portion 22 between a use state (solid line state in FIG. 1) and a stored state (dashed line state in FIG. 1).

The guide rail 21 includes a pair of left and right rail portions 2.
4 and 24, and a pair of front and rear mounting members 25a and 25b provided between the pair of rail portions 24 and 24. The mounting members 25a and 25b are mounted on the vehicle via fixing members (not shown). Reinforcement panels 19a, 19b of main body 11
It is fixed to.

The rail portions 24, 24 have a stepped shape in which flat portions 24a and inclined portions 24b are alternately and continuously extended in the width direction of the vehicle body 11, and the rail portions 24, 24 are located on the inside of the vehicle body 11. It is set so that the end located outside the end is located below. Also, the rail section 24
Is formed in a substantially L-shaped section in which a guide portion 24c for supporting a roller 22e described later is set. In addition, the inclined portion 24b is set such that the pair of rollers 22e, 22e is located at least when the step portion 22 is in the use state. Further, stopper pieces 24d, 24d for restricting the amount of forward and backward movement of the step portion 22 are attached to the guide portions 24c, 24c located at both ends of the rail portions 24, 24.

The step section 22 includes a step table 22a,
A frame 22b supporting the step table 22a, a pair of first arms 22c, 22c protruding upward on both sides near the middle of the frame 22b, and upward on both sides near the rear end of the frame 22b. And a pair of second arms 22d, 22d projecting therefrom.

The projecting height of the first arm 22c is set lower than the projecting height of the second arm 22d. Rollers (supported members) 22e, 22e... Are rotatably supported at the upper ends of the first arms 22c, 22c and the second arms 22d, 22d. Further, the second arms 22d, 2d
A connection frame 22f is provided between the upper portions of the connection frames 2d, and a connection bracket 22g is provided at the center of the connection frame 22f.
Has been fixed.

Incidentally, FIG.
As shown in FIGS. 3A to 3C, a stopper portion 26 for preventing the roller 22e from coming off the rail portion 24 due to the load of the user is provided.

The stopper 26 shown in FIG. 3A is provided at each arm 22 located below the guide 24c of the rail 24.
An auxiliary roller 27 is rotatably supported by c and 22d. Further, the stopper portion 26 shown in FIG. 3B is provided for each of the arms 22 located below the guide portion 24 c of the rail portion 24.
An auxiliary plate 28 is attached to c and 22d.
Further, the stopper 26 shown in FIG.
The restricting panel 29 is formed integrally with the rail portion 24 so as to be located above 2e.

The drive mechanism 23 includes a forward / reverse rotation motor 23b mounted on a bracket 23a fixed to the reinforcing panel 19a, and a drive gear 2 pivotally supported by the motor 23b.
A driven gear 23d meshing with the driven gear 3c and receiving rotational driving from the motor 23b; a driving link 23e fixed coaxially with the driven gear 23d; and a driven link rotatably pivotally connected to the free end side of the driving link 23e. 23f.
The free end of the driven link 23f is rotatably connected to the connection bracket 22g of the step portion 22.

Incidentally, the drive mechanism 23 is connected to the rear door 14.
The switch is electrically connected to an opening / closing detection switch (not shown) provided in the camera, and is set to be driven in conjunction with the opening / closing operation of the rear door. The drive mechanism 23 is set so that the forward / reverse rotation of the motor 23b is stopped and the sliding of the step portion 22 is stopped at a predetermined position. Further, a limit switch, a proximity switch, or the like is provided on the tip side of the step portion 22 to be electrically connected to the motor 23b. When the rear door 14 is opened, an obstacle such as a guard rail or a wall exists, and It is possible to take measures to prevent damage when displacement of the protruding side is impossible. At this time, the motor 23b is set to stop driving or rotate reversely.

In the above configuration, when the rear door 14 is opened when getting on or off the vehicle, the open / close detection switch provided on the rear door 14 is turned on to rotate the motor 23b, and the rotation of the motor 23b is controlled by each gear. The free ends of the drive link 23e are rotated toward the step 18 side of the vehicle main body 11 by receiving the drive links 23c and 23d.

Due to the rotation of the drive link 23e, the step portion 22 is pushed out while moving downward in parallel, and protrudes from the side surface of the vehicle body 11 to put the step portion 22 into a use state.

At this time, the roller 22 of the second arm 22d
Since e is located on the inclined portion 24b of the guide rail 21, the step portion 22 is prevented from going backward by receiving the load when riding.

On the other hand, when the boarding or dismounting is completed, the rear door 1
4 is closed, the open / close detection switch provided on the rear door 14 is turned on again, and the motor 23b rotates in the reverse direction. The gears 23c and 23d receive the reverse rotation of the motor 23b, and the free end of the drive link 23e is turned. The vehicle body 11 rotates in a direction away from the step 18 side.

Due to the rotation of the drive link 23e, the step portion 22 is pulled back while moving in parallel upward, and the step portion 22 is in the retracted state.

(Second Embodiment) FIG. 5 shows a second embodiment of the present invention, in which a step device 30 is shown.
Is shown in a cross-sectional view in a state where is attached to a vehicle body.
In FIG. 5, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

In the first embodiment, the rail portions 24 of the guide rail 21 have a stepped shape in which the flat portions 24a and the inclined portions 24b are alternately and continuously extended in the width direction of the vehicle body 11. Was. On the other hand, the rail portions 32, 32 of the guide rail 31 according to the second embodiment have a substantially linear shape extending in the width direction of the vehicle body 11, and the end located on the inner side of the vehicle body 11 It is set so that the end located outside the portion is located below.

The driving device 40 used here
Is a bracket 41 fixed to the vehicle body 11, and a forward / reverse rotation motor 42 attached to the bracket 41.
A drive link 43 rotatably attached to the bracket 41; an arc-shaped driven gear 44 attached to the drive link 43; and a driven link 45 attached to the free end of the drive link 43.

The rotation of the forward / reverse rotation motor 42 is transmitted to a drive gear 46 attached to the bracket 41, and the driven gear 44 receives the rotation of the drive gear 46 so that the drive link 43 rotates. I have. In the drawing, a retainer 47 supports a driven gear 44 between the bracket 41 and the retainer 47.

In the step device 30 configured as described above, the same operation as that of the first embodiment can be performed while the guide rail 31 is easily formed.

[0032]

As described above, in the step device according to the present invention, the guide rail fixed to the vehicle body and extending in the width direction of the vehicle body has a supported portion on the guide rail. A step portion which is slidably supported and is set so as to be able to protrude and retract from the side surface of the vehicle body, and wherein the guide rail is inclined forward and rearward and rearward with respect to a sliding direction in which the step portion projects. When the inclined portion is set and the step portion is in the protruding state, the supported portion of the step portion is supported by the inclined portion, so that the use state and the storage state can be performed with a simple structure. Not only can it be used without being affected by obstacles when the vehicle is running, it can also be used without disturbing the height of the ground, and the step movement due to the load when riding can be prevented without using a special stopper device Rukoto can, moreover when subjected to impact from the side of the vehicle body can be stored step by the impact force.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state in which the step device of the present invention is mounted on a vehicle body.

FIG. 2 is an exploded perspective view of the step device.

FIG. 3 is a sectional view of a guide rail showing an example of support of a supported portion.

FIG. 4 is a perspective view of the vehicle body showing a state in which the step device of the present invention is used.

FIG. 5 is a sectional view showing a state in which a step device according to a second embodiment of the present invention is mounted on a vehicle body.

FIG. 6 is a side view showing a state in which a conventional step device is attached to a vehicle body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Vehicle main body 12 ... Door opening part 20 ... Step device 21 ... Guide rail 22 ... Step part 22e ... Roller (supported part) 24b ... Inclined part

Claims (1)

(57) [Scope of request for utility model registration] 1. A step device for a vehicle disposed below a lower end of a door opening formed in a vehicle body, wherein the step device is fixed to the vehicle body and the vehicle body. A guide rail that extends in the width direction of the vehicle, and a step portion that is supported by the guide rail so as to be slidable and that can be set in and out of a side surface of the vehicle body. An inclined portion inclined forward and rearward and rearward with respect to the sliding direction of the step portion is set, and when the step portion is in the protruding state, the supported portion of the step portion is the inclined portion. A step device for a vehicle, wherein the step device is supported by a vehicle.