JP2001191853A - Vehicle inside storage type step structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the appearance of a vehicle, to reduce the number of part items and to prevent the looseness of steps. SOLUTION: This vehicle inside storage type step structure has an elevating means 2 pulled out of an opening part 1b provided at a side face 1a of the vehicle 1, and lowered to the ground G with the pulled-out tip side as the lower end side so as to be extended in a stair form from the opening part 1b to the ground G. A storage lid 3 for closing the opening part 1b when enclosing the elevating means 2 is used as a step board in the uppermost position of the elevating means 2 in the extended state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stowable type step structure in a vehicle which is convenient for lifting and lowering a load on a loading platform.

[0002]

2. Description of the Related Art An example of this type of stowable step structure in a vehicle is disclosed in, for example, Japanese Utility Model Laid-Open No. 59-42743. This device is configured such that an opening is provided in a side surface of a vehicle below the loading platform, and the elevating means is moved in and out of the opening.

[0003]

However, in the above-mentioned conventional step structure which is housed in a vehicle, the opening is simply opened to the side of the vehicle, so that the appearance is not good. There were drawbacks. Further, when a lid for closing the opening is provided, there is a problem that the number of parts increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a stowable in-vehicle structure capable of improving the appearance of a vehicle, reducing the number of parts, and preventing rattling of the steps. It is intended to do so.

[0005]

In order to achieve the above object, the invention according to claim 1 is provided by pulling out from an opening provided in a side surface of a vehicle, and lowering the leading end side of the vehicle as a lower end side to the ground. In a vehicle-installed step structure having elevating means that expands in a stepwise manner from the opening to the ground, a storage lid that closes the opening during storage is used as a top plate of the elevating means in the deployed state. It is characterized by having such a configuration.

According to a second aspect of the present invention, in the first aspect of the present invention, the lowermost stepping plate at the uppermost position is constituted by arranging a plurality of plate members in a vertically upright state, and a gap between the plate members is provided. It is characterized by being able to communicate up and down.

According to a third aspect of the present invention, in the first or second aspect of the invention, the vehicle is provided with a rail for accommodating the elevating means, and the upper end of the elevating means moves along the rail. A guide member for guiding the guide member is provided, and the guide member is movably connected to the rail via a self-lubricating resin sliding block.

[0008] The invention described in claim 4 is the first to third aspects of the present invention.
In the invention according to any one of the above, the vehicle is provided with a support member at a position corresponding to the lower side of the opening to support the elevating means slidably from below when the elevating means is pulled out,
The lifting means is provided with a stopper which, when stored in the vehicle, contacts the support member and prevents movement in the pull-out direction.

[0009] The invention according to claim 5 is the invention according to claims 1 to 4.
In the invention described in any one of the above, the storage lid is provided with a second stopper for preventing the lower end portion of the stored lifting means from moving in the floating direction when the opening is closed. It is characterized by the following.

[0010] The invention according to claim 6 is the invention according to claims 1 to 5.
In the invention described in any one of the above, a third stopper is provided to prevent a lower end portion of the stored lifting means from moving left and right with respect to the pulling-out direction.

[0011] The invention according to claim 7 is the invention according to claims 1 to 6.
In the invention described in any one of the above, a fixing means for fixing the storage lid in a state where the opening is closed to the vehicle is provided.

According to the first aspect of the present invention, since the opening is closed by the storage lid, the external appearance can be improved. In addition, since the storage lid can also be used as the uppermost stepping plate of the elevating means, by using the storage lid as one of the main steps, one main step of the elevating means can be eliminated. Therefore, an increase in the number of parts can be suppressed.

According to the second aspect of the present invention, each of the main steps below the uppermost position is composed of a plurality of plate members which are vertically erected, so that the surface pressure acting on the shoe sole from each plate member is reduced. Get higher. As a result, each plate material easily penetrates into mud or the like attached to the sole of the shoe, so that the mud or the like can easily fall off, and the sole of the shoe can be slightly slid on the tread plate. Mud and the like can be reliably removed. That is, since mud and the like on the soles of the shoe can be eliminated before climbing to the vehicle, it is possible to prevent the cargo bed from being soiled with the mud and the like, for example. In addition, since the space between each plate material is connected up and down, mud etc. does not stay on this tread plate,
You will fall to the ground. Therefore, it is possible to prevent the main tread plate from being stained with mud or the like. Furthermore, the plate member causes deep unevenness on the tread surface of the tread plate, and increases the frictional resistance to the shoe sole, so that safety can be improved.

According to the third aspect of the present invention, the guide member is slidably connected to the rail via the sliding block, so that each time the sliding block slides, the soil mounted on the rail. Dust can be scraped off. For example, when a roller is used to move the guide member, the roller moves so as to ride on the dust on the rail, so that dust gradually accumulates on the rail. The roller becomes immovable. On the contrary,
According to the present invention, since the sliding block is used, dust does not accumulate on the rail, and stable performance can be obtained for a long period of time.

In addition, since the surface pressure acting on the rail from the sliding block is extremely small as compared with the case where a roller is used, the durability of the sliding block and the rail can be improved. Furthermore, since the sliding block is made of a resin having self-lubricating properties, there is no need to supply lubricating oil at all. Therefore, maintenance performance can be improved.

According to the fourth aspect of the present invention, since the stopper for preventing movement in the pulling-out direction is provided on the elevating means, it is possible to prevent the elevating means from rattling due to acceleration when the vehicle starts moving. In addition to this, it is possible to reliably prevent the elevating means from trying to jump out of the opening. Further, generation of abnormal noise can be prevented by preventing rattling.

According to the fifth aspect of the present invention, the second stopper for preventing the lower end portion of the lifting / lowering means from moving in the floating direction is provided on the storage lid. In this way, the lifting means can be prevented from rattling up and down, and the lifting means can be surely prevented from jumping out of the opening, and the noise caused by the rattling can be prevented. Can be.

According to the sixth aspect of the present invention, since the third stopper for preventing the lower end portion of the lifting / lowering means from moving left / right is provided, the vibration in the left / right direction during traveling causes the lifting / lowering means to move. Can be prevented from rattling from side to side, and the generation of abnormal noise due to the rattling can also be prevented.

According to the seventh aspect of the present invention, since the fixing means for fixing the storage lid with the opening closed to the vehicle is provided, the storage means also allows the lifting means in the storage state to be in the opening. It is possible to prevent the user from trying to escape. Therefore, it is possible to more reliably prevent the lifting / lowering means housed in the vehicle from coming out of the opening.

[0020]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a vehicle provided with a stowable type step structure in a vehicle according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a stowable type step structure in a vehicle pulled out of the vehicle and deployed. 3 is a side view showing a stowable step structure in the vehicle in a stowed state in the vehicle, FIG. 4 is a view taken in the direction of the arrow IV in FIG. 3, FIG. 5 is a cross-sectional view along the line VV in FIG. FIG. 7 is a side view of a main part showing a retractable step structure in a vehicle in a state, and FIG.
8 is a plan view of the guide member, FIG. 9 is a side view of the guide member, FIG. 10 is a view of arrow X in FIG. 9, FIG. 11 is a front view of the lifting / lowering means, and FIG. A cross-sectional view along the line XII,
FIG. 13 is a plan view of the step board, and FIG. 14 is a view taken along the line XIV-XIV of FIG.
It is sectional drawing which follows a line.

As shown in FIGS. 1 to 14, a step structure S stored in a vehicle shown in this embodiment is pulled out from an opening 1b provided in a rear side surface (side surface) 1a of the vehicle 1, and the leading end side thereof is pulled out. Is lowered to the ground G with the lower end as the lower side, thereby having a lifting means 2 that expands in a stepwise manner from the opening 1b to the ground G, and the storage lid 3 that closes the opening 1b at the time of storage is opened. It is configured to be used as the uppermost step board 21 of the lifting / lowering means 2.

Further, the lower main stepping plate 22 at the uppermost position is
It is constituted by arranging a plurality of plate members 22a in a state of standing up and down, so that the space between the plate members 22a communicates up and down. On the other hand, the vehicle 1 is provided with a rail 4 for accommodating the lifting / lowering means 2, and a guide member 5 for guiding the vehicle 1 to move along the rail 4 is provided at the upper end side of the lifting / lowering means 4. The guide member 5 is movably connected to the rail 4 through a self-lubricating resin sliding block 6.

Further, when the lifting / lowering means 2 is pulled out at a position corresponding to the lower side of the opening 1b, the lifting / lowering means 2
Is provided slidably from below, and the lifting / lowering means 2 prevents the lifting means 2 from moving in a direction in which the lifting means 2 comes into contact with the support member 7 and withdraws from the opening 1b when housed in the vehicle 1. A stopper 25a is provided.

Further, the storage lid 3 has a second stopper 31 for preventing the lower end portion of the stored elevating means 2 from moving in the direction of floating from the support member 7 when the opening 1b is closed. Is provided, and the support member 7 is provided.
Is provided with a third stopper 7a for preventing the stored lower end portion of the lifting / lowering means 2 from moving left and right in the pulling-out direction. The storage lid 3 has an opening 1b.
Is fixed to the vehicle 1 by the fixing means 8 in a closed state.

Hereinafter, the above configuration will be described in more detail. That is, as shown in FIGS. 1 and 2, the rear side surface 1a is formed by an outer surface of a frame 11 that covers a lower side of a carrier 1c at a rear side of the vehicle 1, and has an opening 1b.
Are formed so as to penetrate the center of the frame 11 in the width direction (left-right direction). The opening 1b is located immediately below the carrier 1c and is formed in a rectangular shape that extends long along the width direction of the frame 11.

As shown in FIGS. 3 to 7, the rail 4 includes two rails extending inward toward the front of the vehicle 1 from positions corresponding to the left and right edges of the opening 1b. ing.
Each of the left and right rails 4 is, as shown in FIG.
And an upper guide plate portion 4b and a lower guide plate portion 4c projecting perpendicularly from the base plate portion 4a. And the upper guide plate part 4b in the base plate part 4a
Is an upper rib 4d, and a lower side of the lower guide plate portion 4c in the base plate portion 4a is a lower rib 4e. In addition, a distal end guide plate portion 4f bent vertically downward is integrally formed at the distal end portion of the lower guide plate portion 4c.

The rail 4 configured as described above is formed by extrusion or drawing using a material such as steel or aluminum. In addition, each rail 4 on the left and right
Are fixed to a support bracket (not shown) extending downward from the frame 12 constituting the carrier 1c. Further, an opening 1 is provided at an end on the opening side of each rail 4.
A bracket 41 is provided along the left and right edges of b. Each of the brackets 41 includes an upper rib 4d and a lower rib 4 on the rail 4 as shown in FIGS.
e is fixed with bolts and nuts. The bracket 41 is supported by the rail 4 by fixing the upper rib 4d and the lower rib 4e with bolts and nuts. The left and right brackets 41 are
The lower end is connected by a support bar 42 having an L-shaped cross section.

As shown in FIGS. 3 to 7, the upper ribs 4d on the left and right rails 4 are connected to each other.
A tubular inner stop bar 43 and an outer stop bar 44 having a rectangular cross section are provided. Inner stop bar 4
3 has its ends fixed to the inner ends of the upper ribs 4d by bolts and nuts. Further, each end of the outer stop bar 44 is fixed to a position closer to the outer side of each upper rib 4d (a position closer to the opening 1b) with a bolt and a nut. The inner stop bar 43 functions as a stopper that limits the amount of movement of the guide member 5 inward, and the outer stop bar 44 functions as a stopper that limits the amount of movement of the guide member 5 outward. It has become.

As shown in FIGS. 5 and 6, a bracket 45 for rotatably holding the storage lid 3 is fixed to the left and right upper ribs 4d by bolts and nuts.

As shown in FIGS. 4 to 6, the storage lid 3 has a main plate 3a formed in a square shape so as to enter along the edge of the opening 1b, and an opening from the upper edge of the main plate 3a. The upper rib 3b bent at a right angle to the 1b side, the lower rib 3c bent at a right angle to the opening 1b from the lower edge of the main plate 3a, and the opening 1b from the left and right edges of the main plate 3a. Opposite sides are provided with side ribs 3d, 3d bent at right angles.

The main plate 3a is formed by pressing a plurality of irregularities (not shown) so as to increase the frictional force of the tread surface when used as the tread plate 21 at the uppermost position. The upper rib 3b, the lower rib 3c, and the side ribs 3d, 3d reinforce the periphery of the main plate 3a to increase the rigidity. The upper ends of the side ribs 3d are rotatably connected to the bracket 45 by bolts and nuts (hereinafter referred to as "bolts and nuts") BN1. Further, an engagement hole 3e to be fixed by the fixing means 8 is formed at the lower end of each side rib 3d.

As shown in FIGS. 1 and 4, the fixing means 8 is attached to the rear side surface 1a (frame 11) along the left and right edges of the opening 1b by screws. The fixing means 8 has a fixing pin 8a that fits into the engagement hole 3e of the storage lid 3. The fixing pin 8a has a diameter at one end thereof to be fitted into the engagement hole 3e, and a knob 8b having a stepped diameter at the other end. The fixing pin 8a receives a force in a direction in which the fixing pin 8a is fitted into the engagement hole 3e by a biasing means such as a spring (not shown). That is, the fixing means 8 pulls the knob 8b so that the fixing pin 8a is
The fixing pin 8a enters the engaging hole 3e to fix the storage lid 3 by releasing the fixing of the storage lid 3 by releasing the knob 8b. The fixing means 8
May be constituted by another device such as a French dropper.

On the other hand, as shown in FIGS. 3, 4, 6, and 7 to 10, the guide member 5 guided by the rail 4 has a side frame portion 5 positioned along each of the left and right rails 4.
1, 51, an inner frame portion 52 located inward in front of the vehicle, and an outer frame portion 53 located outward in back of the vehicle.
Thus, a rectangular frame is formed. The side frame portions 51, the inner frame portion 52, and the outer frame portion 53 are each formed by extrusion or drawing using a material such as steel or aluminum, and are connected by welding.

As shown in FIG. 10, the side frame portion 51 is formed in a U-shaped cross section by a base portion 51a, upper ribs 51b, and lower ribs 51c. (Left-right direction). 8 and 9, a sliding block 6 is fixed to the inner end and the center in the longitudinal direction of the base 51a.

As shown in FIGS. 8 to 10, the inner frame portion 52 is formed in a tubular shape having a rectangular cross section, and each end thereof is placed on the upper rib 51b of each side frame portion 51. Welded. The inner frame portion 52 stops the guide member 5 at the inner limit position by abutting on the inner stop bar 43 described above, and also abuts on the outer stop bar 44. The guide member 5 is stopped at the outer limit position so that the elevating means 2 does not come off the vehicle 1.

As shown in FIGS. 6 to 10, the outer frame portion 53 is formed by a band-shaped plate.
3a and connecting plate portions 53b, 53b formed by bending each end of the main plate portion 53a at a right angle. Each connecting plate 53b is welded to the base 51a of each side frame 51. Then, in a state where each connecting plate portion 53b is welded to each base portion 51a, a predetermined gap 5a (see FIG. 6) is provided between the outer end surface of the side frame portion 51 and the main plate portion 53a.
And FIG. 8). The gap 5a is set to an interval at which the lower rib 3c of the storage lid 3 just enters. In addition, as shown in FIG. 6, the position of the gap 5a is set such that the elevating means 2 is pulled out of the opening 1b, and the inner frame 52 of the guide member 5 is in contact with the outer stop bar 44. 3 is a position where the lower rib 3c just enters.

That is, the storage lid 3 is provided with the bolt and nut BN1
, The main plate 3a comes into contact with the upper surfaces of the left and right side frame portions 51 (the upper surfaces of the upper ribs 51b), and the lower ribs 3c fit into the gaps 5a. Note that the upper rib 3b of the storage lid 3 is
1, the width thereof is shorter than the width of the lower rib 3c by the upper rib 51b.

The sliding block 6 provided on each of the left and right side frame portions 51 has a self-lubricating and abrasion-resistant resin such as MC nylon (a nylon containing molybdenum disulfide). (May be configured), and is fixed to the base portion 51a with bolts and nuts. As shown in FIGS. 4 and 10, each sliding block 6 includes an upper sliding contact portion 6 a that slides on the inner surface of the upper guide plate portion 4 b of the rail 4 and an inner surface of the lower guide plate portion 4 c of the rail 4. The upper sliding contact portion 6a and the lower sliding contact portion 6b are configured to suppress rattling of the rail 4 in the vertical direction. Further, the sliding block 6 has a side sliding contact portion 6c that slides on the distal end guide plate portion 4f of the rail 4, and the lateral sliding contact portion 6c also causes a rattling of the rail 4 in the left-right direction. It is designed to suppress.

Further, as shown in FIGS. 6 to 10, a first member for rotatably supporting the lifting / lowering means 2 is provided on the guide member 5.
And a second rotation support portion 55 are provided. The first rotation support portion 54 is welded to the left and right side frame portions 51, and the second rotation support portion 55 is welded to the outer frame portion 5.
Two are welded to the third main plate portion 53a at predetermined intervals (at equal positions from the center).

The lifting / lowering means 2 is shown in FIGS.
As shown in FIG. 4, the main support 23 rotatably connected to each of the left and right first rotation support portions 54, and each of the second rotation support portions 5
5 and a main stepping plate 22 rotatably connected to the main column 23 and the sub column 24.

The main support 23 is formed by extrusion or drawing using a material such as steel or aluminum, and has a square cross section. The upper end of each main support 23 is connected to the first rotation support 54.
Bolts on the part protruding below the side frame 51
It is rotatably connected using a nut BN4. Further, a shoe 25 for abutting on the ground G is attached to the lower end of each main support 23. Left and right shoe 2
5 are connected by a connection bar 26. The connecting bar 26 plays a role as a strength member for preventing the lower end portions of the left and right main columns 23 from moving in a direction in which they spread or approach each other.

The sub-post 24 is formed of a band-shaped plate made of a material such as steel or aluminum. The upper end of the sub-post 24 is rotatably connected to the second rotation support portion 55 using a bolt and nut BN2. I have.

The left and right ends of the tread plate 22 are rotatably connected to the main support 23 and the auxiliary support 24 via bolts and nuts. As shown in FIG. 12, the main tread plate 22 cooperates with the main column 23 and the sub column 24 to form a link mechanism. When the inclination angle of the main column 23 is changed, the sub column 24 is also The main support 23 is displaced in parallel. The main support 23 and the sub support 24 are
In the horizontal state, the stepping plate 22 is vertically adjacent to each other, and the tread plate 22 always keeps its tread surface 22b horizontal regardless of the inclination angle of the main support 23.

Further, the main stepping plate 22 is formed by the steps shown in FIGS.
As shown in FIG. 5, a plurality of plate members 22 are integrally provided so as to cross each other inside a rectangular frame plate 22c. Each frame plate 22c and plate material 22a are
oriented perpendicular to b. The frame member 22c located at the left and right ends is provided with a bracket 22d for rotatably connecting to the main column 23 and the sub column 24 via bolts and nuts. The main stepping plate 22 is formed by extrusion, drawing, welding, or the like using a material such as steel or aluminum.

The support member 7 is, as shown in FIGS.
By supporting the main support 23 in a horizontal state from below,
The storage and drawer of the lifting / lowering means 2 are assisted. The support member 7 is formed of a resin having a self-lubricating property and excellent wear resistance, for example, MC nylon (may be made of nylon containing molybdenum disulfide). A bolt / nut BN3 is attached to a position corresponding to each main support 23 above. Also, the third stopper 7a of the support member 7
Abuts against the side surface of each main support column 23 to suppress the rattling of the lifting / lowering means 2 in the left-right direction.

The stopper 25a is formed on the shoe 25 of the main support 23. When the inner frame 52 of the guide member 5 is in contact with the inner stop bar 43, the stopper 25a Therefore, the lifting means 2 is prevented from moving in the direction in which the lifting means 2 is pulled out of the opening 1b. That is, the stopper 25a is
Is designed to prevent rattling in the front-back direction.

The second stopper 31 is formed by extrusion or drawing using a material such as steel or aluminum, and has a rectangular cross section. The second stopper 31 is fixed to the inner surface of the main plate 3 a of the storage lid 3 by welding or the like, and the inner frame 52 of the guide member 5 is fixed to the inner stop bar 43.
When the storage lid 3 is fixed to the frame 11 by the fixing means 8, the storage lid 3 abuts on the connection bar 26, whereby the lower end portion of the lifting / lowering means 2 in the storage state floats up from the support member 7. To prevent it from moving. In other words, the second stopper 31 is
Is designed to prevent the lower end portion from rattling in the vertical direction. Note that the second stopper 31 may be made of an elastic material such as rubber.

In FIGS. 1 and 2, reference numeral 1d denotes a rear door for opening and closing the entrance to the luggage compartment.

In the vehicle-stored step structure S configured as described above, the opening 1b is closed by the storage lid 3, so that the external appearance of the vehicle 1 can be improved. Moreover, since the storage lid 3 functions as the uppermost stepping plate 21 of the lifting / lowering means 2, the storage lid 3 is also used as one of the main stepping plates 22, so that one main stepping plate 22 of the lifting / lowering means 2 can be deleted. it can. Therefore, an increase in the number of parts can be suppressed.

Each of the main treads 22 below the uppermost position
Is composed of a plurality of plate members 22a oriented in the vertical direction, so that the surface pressure acting on the shoe sole from the tread surface 22b can be increased. For this reason, the edge of each plate member 22a easily penetrates into mud or the like attached to the shoe sole.
The mud and the like fall down just by riding on the vehicle, and the mud and the like on the shoe sole can be reliably removed by performing an operation of slightly sliding the shoe on the main tread plate 22. Therefore, since mud and the like on the soles of the shoe can be removed before climbing to the vehicle, it is possible to prevent the cargo bed 1c from being soiled with the mud and the like. In addition, since the space between the respective plate members 22a communicates up and down, mud and the like falls to the ground without staying on the main tread plate 22. Accordingly, it is possible to prevent the tread surface 22b of the tread plate 22 from being stained with mud or the like. Further, the plate member 22 a is a tread surface 22 of the main tread plate 22.
Since it has the same structure as that in which b has deep irregularities, the frictional resistance to the shoe sole can be increased, and the safety at the time of going up and down can be improved.

Further, since the guide member 5 is slidably connected to the rail 4 via the slide block 6, every time the slide block 6 slides, dust such as dirt on the rail 4 moves. Can be scraped off. For example, if a roller is used to move the guide member, the roller will ride on the dust on the rail, so the dust will gradually accumulate on the rail, and eventually the roller will not move. become. On the other hand, in this embodiment, the sliding block 6
Since no dust is accumulated on the rail 4, stable performance can be obtained for a long period of time.

Further, since the surface pressure acting on the rail 4 from the sliding block 6 is extremely small as compared with the case where a roller is used, the durability of the sliding block 6 and the rail 4 can be improved. Further, since the sliding block 6 is made of MC nylon resin having excellent self-lubricating properties and abrasion resistance, there is no need to supply lubricating oil. Therefore, maintenance performance can be improved.

Further, since the stopper 25a for preventing movement in the pulling-out direction is provided on the shoe 25 of the elevating means 2, even if acceleration occurs when the vehicle starts, the elevating means 2 is prevented from rattling. In addition to this, it is possible to reliably prevent the lifting / lowering means 2 from jumping out of the opening 1b. Further, generation of abnormal noise can be prevented by preventing rattling.

Further, since the storage lid 3 is provided with the second stopper 31 for preventing the lower end portion of the lifting / lowering means 2 from moving in the floating direction, the vertical movement during traveling causes the lifting / lowering means 2 to move. Can be prevented from rattling up and down, and generation of abnormal noise due to the rattling can also be prevented. Further, since the third stopper 7a for preventing the lower end portion of the lifting / lowering means 2 from moving left / right is provided, the vibration in the left / right direction (the width direction of the vehicle 1) during traveling causes the lifting / lowering means 2 to move. It is possible to prevent rattling to the left and right, and also to prevent generation of abnormal noise due to the rattling.

Further, since the fixing means 8 for fixing the storage lid 3 to the frame 11 of the vehicle 1 is provided, the storage lid 3
Thus, it is possible to prevent the lifting / lowering means 2 in the housed state from going out of the opening 1b. Therefore, it is possible to more reliably prevent the lifting / lowering means 2 housed in the vehicle 1 from coming out of the opening 1b.

Further, the state in which the stopper 25a is locked to the support member 7 can be released by grasping the connection bar 26 and lifting it up. Can be easily deployed outside.

In the above embodiment, the opening 1
b is provided on the rear side surface 1a of the vehicle 1.
The opening 1b may be configured to be provided on a side surface of the vehicle 1 in the width direction.

[0058]

As described above, the step structure of the present invention, which is housed in a vehicle, has the following advantages because it is constructed as described above.

(1) According to the first aspect of the present invention, the opening is closed by the storage lid, so that the external appearance can be improved. In addition, since the storage lid can also be used as the uppermost stepping plate of the elevating means, by using the storage lid as one of the main steps, one main step of the elevating means can be eliminated.
Therefore, an increase in the number of parts can be suppressed.

(2) According to the second aspect of the present invention, since the main tread plate below the uppermost position is composed of a plurality of plate members which are vertically erected, a surface acting on the shoe sole from each plate member. Pressure increases. As a result, each plate material easily penetrates into mud or the like attached to the sole of the shoe, so that the mud or the like can easily fall off, and the sole of the shoe can be slightly slid on the tread plate. Mud and the like can be reliably removed. That is, since mud and the like on the soles of the shoe can be eliminated before climbing to the vehicle, it is possible to prevent the cargo bed from being soiled with the mud and the like, for example. Further, since the space between the respective plate members is formed to pass vertically, mud and the like fall to the ground without staying on the main tread plate. Accordingly, it is possible to prevent the main tread plate from being stained with mud or the like. Further, the plate material causes deep irregularities on the tread surface of the tread plate, and increases the frictional resistance to the shoe sole, so that safety can be improved.

(3) According to the third aspect of the present invention, since the guide member is slidably connected to the rail via the slide block, the guide member is connected to the rail every time the slide block slides. It can scrape off dirt on the ground. For example, when a roller is used to move the guide member, the roller moves so as to ride on the dust on the rail, so that dust gradually accumulates on the rail. The roller becomes immovable. On the other hand, according to the present invention, since the sliding block is used, dust does not accumulate on the rail, and stable performance can be obtained for a long period of time.

Further, since the surface pressure acting on the rail from the sliding block is extremely small as compared with the case where a roller is used, the durability of the sliding block and the rail can be improved. Furthermore, since the sliding block is made of a resin having self-lubricating properties, there is no need to supply lubricating oil at all. Therefore, maintenance performance can be improved.

(4) According to the fourth aspect of the present invention, since the stopper for preventing the movement in the pulling-out direction is provided in the lifting / lowering means, the lifting / lowering means may rattle due to acceleration when the vehicle starts moving. Can be prevented, and the lifting means can be surely prevented from jumping out of the opening. Further, generation of abnormal noise can be prevented by preventing rattling.

(5) According to the fifth aspect of the present invention, the second stopper for preventing the lower end portion of the lifting / lowering means from moving in the floating direction is provided on the storage lid. By the vibration in the direction, the lifting means can be prevented from rattling up and down, and the lifting means can be surely prevented from jumping out of the opening,
The generation of abnormal noise due to the rattling can also be prevented.

(6) According to the sixth aspect of the present invention, the third portion for preventing the lower end portion of the lifting / lowering means from moving left and right.
Since the stopper is provided, it is possible to prevent the raising / lowering means from rattling right and left due to the vibration in the left and right direction during traveling, and also to prevent generation of abnormal noise due to the rattling.

(7) According to the seventh aspect of the present invention, since the fixing means for fixing the storage lid with the opening portion closed to the vehicle is provided, the lifting means in the storage state by the storage lid is also provided. Can be prevented from getting out of the opening. Therefore, it is possible to more reliably prevent the lifting / lowering means housed in the vehicle from coming out of the opening.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vehicle provided with an in-vehicle retractable step structure as one embodiment of the present invention.

FIG. 2 is a perspective view showing a retractable step structure in a vehicle in a state where the step structure is pulled out of a vehicle and deployed.

FIG. 3 is a side view showing the retractable step structure in the vehicle.

FIG. 4 is a view showing the retractable step structure in the vehicle, and is a view taken in the direction of arrow IV in FIG. 3;

5 is a view showing the retractable step structure in the vehicle, and is a cross-sectional view taken along line VV in FIG. 4;

FIG. 6 is a side view of an essential part showing the retractable step structure in the vehicle.

FIG. 7 is a view showing the retractable step structure in the vehicle, and is a view taken in the direction of arrow VII in FIG. 6;

FIG. 8 is a plan view showing a guide member having a step structure that is stored in the vehicle.

FIG. 9 is a side view showing a guide member having a step structure that can be stored in the vehicle.

FIG. 10 is a view showing the retractable step structure in the vehicle, and is a view taken in the direction of the arrow X in FIG. 9;

FIG. 11 is a front view showing an elevating means having a stowable step structure in the vehicle.

12 is a cross-sectional view taken along the line XII-XII of FIG. 11, showing the lifting / lowering means of the step structure retractable in the vehicle.

FIG. 13 is a plan view showing a main stepping plate having a stowable step structure in the vehicle.

FIG. 14 is a view showing the main tread plate having the step structure stored in the vehicle, and is a cross-sectional view taken along line XIV-XIV of FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle 1a Rear side surface (side surface) 1b Opening 2 Elevating means 3 Storage lid 4 Rail 5 Guide member 6 Sliding block 7 Support member 7a Third stopper 8 Fixing means 21 Tread plate 22 Main tread plate 22a Plate material 25a Stopper 31 Second Stopper G Ground S Retractable step structure in vehicle

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroshi Kobayashi 1572-19 Taroyo, Niigata City, Niigata Prefecture F-term in Niigata Nikkei Koei Co., Ltd. 3D022 AA01 AC03 AD06 AE07 AE08

Claims (7)

[Claims] 1. A vehicle having lifting means which is pulled out from an opening provided in a side surface of a vehicle and lowered on the ground with the drawn front end as a lower end, so as to be deployed in a stepwise manner from the opening to the ground. An interior storage type step structure, wherein a storage lid for closing the opening at the time of storage is used as a tread plate at an uppermost position of an elevating means in an expanded state. 2. The step structure stored in a vehicle according to claim 1, wherein the lower step plate at the uppermost position is constituted by arranging a plurality of plate members in a vertically upright state, and a vertical space is provided between the respective plate members. A step structure that can be stored in a vehicle, wherein the step structure is adapted to communicate with the vehicle. 3. A step structure for storage in a vehicle according to claim 1, wherein the vehicle is provided with a rail for storing the lifting means, and the upper end of the lifting means is moved along the rail. A step structure for storage in a vehicle, wherein a guide member for guiding is provided, and the guide member is movably connected to a rail via a self-lubricating resin sliding block. 4. The step structure according to claim 1, wherein when the lifting means is pulled out to a position corresponding to a lower side of the opening, the lifting means is moved downward. A vehicle provided with a support member that slidably supports the vehicle from above, and a lifting / lowering means provided with a stopper that prevents the body from moving in a pulling-out direction when hitting the support member when housed in the vehicle. Internal storage step structure. 5. The step structure for storage in a vehicle according to claim 1, wherein the storage lid has a lower end portion in a direction in which a lower end portion of the stored lifting means is lifted when the opening is closed. A retractable step structure in a vehicle, wherein a second stopper for preventing movement is provided. 6. A step structure for storage in a vehicle according to claim 1, wherein a lower end portion of the stored lifting means is prevented from moving left and right with respect to the pulling-out direction. A stowable storage structure in a vehicle, wherein a stopper is provided. 7. The in-vehicle type step structure according to claim 1, further comprising fixing means for fixing the storage lid with the opening closed to the vehicle. Retractable step structure.