JP5688956B2 - Retractable auxiliary step in the passenger compartment - Google Patents

Description

  The present invention relates to an in-vehicle step that is expanded on a vehicle step such as a bus or a one-box car at the time of getting on and off, and an outside vehicle that is extended to similarly expand the area between the in-vehicle step and the ground surface. The vehicle interior retractable auxiliary step comprising steps.

In Patent Document 1, a tread is horizontally stored and disposed on an existing vehicle step when the vehicle entrance / exit is closed by a door, and the tread is projected horizontally from above the vehicle step to the outside of the vehicle when the vehicle entrance / exit is opened. A constructed vehicle interior retractable auxiliary step is disclosed.
In this auxiliary step, the treadle is horizontally arranged on the vehicle step in the passenger compartment in the retracted state, so that the treadle can be protected from the outside environment such as rainwater and mud splashes when not in use, and the treadle is projected outside the vehicle. The treadle can be freely boarded and exited as a vehicle step even when not required, and when used, the treadle can be extended outside the vehicle step (vehicle entrance) to serve as a safe foot joint to the vehicle step. .

JP 2010-188840 A

However, since the above-described auxiliary step is configured to horizontally arrange the tread on the vehicle step during storage, the depth of the tread is necessarily set equal to or shorter than the vehicle step.
Naturally, when the boarding / exiting, a larger tread area is better as a foot joint, and a case where the tread board depth does not meet the standards for use as a passenger vehicle is also assumed.

  Therefore, in the present invention, even if an existing vehicle step is incompatible with the use standard as a passenger vehicle, an in-vehicle step that is arranged on the vehicle step and replaces it so as to meet the standard at the time of getting on and off, It is an object of the present invention to provide a vehicle interior retractable auxiliary step in which each of the vehicle exterior steps that are horizontally arranged on the vehicle interior step when not in use and project to the lower front of the entrance when used are extended in the depth direction.

In view of the above problems, the retractable auxiliary step of the vehicle interior of the present invention includes a stationary tread plate that is horizontally disposed on an existing vehicle step so as not to protrude outwardly, and a front end portion protruding forward from the vehicle step. Between the lower storage position that overlaps on the fixed tread so that it does not protrude, and the overhanging position that is connected to the front of the fixed tread on the same plane so that the front end protrudes from the vehicle step to the front outside the vehicle by a predetermined length A reciprocatingly movable in-car step, an upper step storage position that overlaps so that it does not protrude outward from the vehicle step in the retracted state of the advance / retreat plate, and the tension of the advance / retreat plate A retractable stepping plate that is reciprocally movable in conjunction with an advancing / retreating stepping plate and a retracting stepping plate that is mounted in such a manner as to be able to reciprocate between the vehicle overhanging position that is horizontally disposed in the lower front part of the vehicle step in the extended state. Car in state It is composed of an outside step composed of an interlocking stepping plate that overlaps on the stepping plate so that the front end portion does not protrude from the step, and is connected to the same plane in front of the stepping plate. To do.
The in / out tread board has vertical struts standing vertically, and a pair of left and right arms that suspend the struts at the vehicle overhang position are pivotally connected between each strut and the vehicle step, and bells are placed at appropriate positions on each arm. A bent portion of the crank is pivotally connected, and a link is pivotally connected between one end of the bell crank and the column and between the other end of the bell crank and the vehicle step, and the base shaft is pivoted to the vehicle step. A swinging crank that is the same as the arm or link to be worn is connected to an advancing / retreating plate through an advancing / retreating mechanism as appropriate.
Further, the interlocking tread is attached to the stepping-in tread with an appropriate link mechanism, and the link mechanism is connected to an arm in the support column or a crank having a base end fixed to the pivot of the link.
Further, the base end shaft is connected to a drive device so as to be rotatable forward and backward.

In short, since the present invention is configured as described above, when getting on and off when the vehicle entrance / exit is opened, the step outside the vehicle that moves from the upper storage position on the step inside the vehicle to the overhanging position is on the same plane in front of the stepping plate. When the interlocking tread is connected to the vehicle step, the entire length is extended to the front lower part of the vehicle step in a state where the depth is longer than the vehicle step, and the in-vehicle step is such that the front end portion of the advancing / retreating step protrudes a predetermined length from the vehicle step. By connecting to the front of the fixed tread on the same plane as this, the depth becomes longer than the vehicle step, and the front projects from the entrance to the outside of the vehicle.
Therefore, when not in use, the steps inside the vehicle and the steps outside the vehicle that are stored in layers on the vehicle steps are overlapped with each other, and when used, each depth is used as a passenger vehicle at a fixed position. It is possible to extend the length of each step so that it fits, and the area of each step can be expanded, so it is possible to secure safety when getting on and off, and to get on and off without worrying about the steps to step on each step.

  The tread board is vertically mounted on the left and right, and a pair of left and right arms that suspend the column at the vehicle overhang position are pivotally connected between each column and the vehicle step. The bent portion of the bell crank is pivotally connected, and a link is pivotally connected between one end of the bell crank and the column, and between the other end of the bell crank and the vehicle step, and the base end shaft is pivotally attached to the vehicle step. Since the swing crank, which is the same as the arm or link to be connected, is connected to the advancing / retreating plate through an advancing / retreating mechanism as appropriate, the in-vehicle step and the in-vehicle step can be easily and easily interlocked by rotating the base end shaft.

  The interlocking tread is attached to the in / out tread appropriately via a link mechanism, and the link mechanism is linked to a crank having a base end fixed to the pivot of the arm or link of the support column. It is transmitted to the crank via a support member (arm, bell crank, link) that moves the stepping plate between the upper storage position and the vehicle overhang position, and the interlocking stepping plate is moved by the link mechanism that operates by rotation of the crank. Thus, it is possible to perform the storing and projecting operations that are easy to use in and out of the vehicle.

  Furthermore, by connecting the base end shaft to the drive unit so that it can rotate forward and backward, the in-vehicle step and the out-of-vehicle step can be automatically stored and extended, eliminating the trouble of manually operating them in the vicinity of the entrance / exit. Its practical effect is great.

It is a perspective view which shows the overhanging state of the vehicle interior retractable auxiliary step which concerns on this invention. It is a perspective view which shows a storage state same as the above. It is a partially-omission sectional view showing the overhanging state of the auxiliary step. It is a partially omitted sectional view showing the storage state. FIG. 4 is an enlarged view of an in-vehicle step in FIG. 3. It is sectional drawing which shows linkage with the step in a vehicle in FIG. 4, and this support member. It is sectional drawing which shows a connection with the vehicle exterior step in FIG. 4, and its support member. FIG. 4 is an enlarged view of a step outside the vehicle in FIG. 3. FIG. 5 is a cross-sectional view showing a stepping plate, an interlocking stepping plate, and a link mechanism in FIG. 4.

An embodiment of the present invention will be described below with reference to the drawings.
The vehicle interior retractable auxiliary step according to the present invention includes a vehicle interior step 1 in which a depth length can be expanded and contracted on a vehicle step S already provided at a lower part of the vehicle entrance / exit with a step on the vehicle interior floor F; Between the vehicle step S and the lower part of the vehicle step S outside the vehicle.

  The in-vehicle step 1 includes a fixed tread 3 that is horizontally arranged on the rear side in the depth direction on the vehicle step S and a front end portion 4a from the vehicle step S so as not to protrude outward on the vehicle step S. The lower storage position X1 where the rear end overlaps the front end of the fixed tread 3 and the front end 4a protrudes from the vehicle step S by a predetermined length forward from the vehicle step so that the front end 4a does not protrude forward. And an advancing / retreating step plate 4 which is provided in front of the fixed tread plate 3 so as to be reciprocally movable between an overhanging position Y1 connected in the same plane.

On the vehicle step S, front and rear left and right walls 5, 5 a, 6, 6 a that are parallel to the front and rear and the left and right of the vehicle step S are opposed to each other, and the fixed tread 3 is horizontally supported at the center upper end of the rear wall 5 a.
The fixed tread 3 has a front end 3a parallel to the front and rear walls 5 and 5a, a left and right end parallel to the inside of the left and right walls 6 and 6a, and a rear side of the rear wall 5a along the kick of the vehicle step S. It consists of a thin plate having a trapezoidal shape in plan view having a rear end portion that is inclined, and an inclined wall 3b having a downward-falling shape is continuously formed at the front end portion 3a.

  Side walls 7 and 7a are formed on the left and right side edges of the fixed tread 3 from the front wall 5 to the rear of the rear wall 5a, and the front end portions of the side walls 7 and 7a are fixed to the front wall 5 to The end portion is fixed to the rear wall 5a so as to protrude rearward beyond the left and right side portions formed with lower height than the central portion supporting the fixed tread 3 on the rear wall 5a.

The advancing / retracting plate 4 has a lateral width longer than that of the fixed tread plate 3 and has a depth substantially equal to the distance between the front wall 5 and the rear wall 5a, and a drooping fixedly attached to the front edge and the left and right side edges of the horizontal rectangular plate. The U-shaped reinforcing frame constitutes a front end portion 4a and a side wall 4b of the advancing / retreating plate 4.
The rear side of the side wall 4b is formed so that its lower end edge is inclined downward toward the rear end, and on the inner side wall 4b of the advancing / retreating plate 4, the inclined start end side and the end side at the rear lower end edge of the downward inclined shape are provided. Are provided with trochanters 8 and 8a.

The advancing / retreating plate 4 is connected with a pair of left and right swinging cranks 9 provided on the vehicle step S so as to be swingable back and forth through an appropriate forward / backward mechanism.
Each swing crank 9 shares a base end (crank) shaft 10, and the base end shaft 10 passes through the side walls 7, 7 a and is rotatably mounted between the left and right walls 6, 6 a.

  The advancing / retreating mechanism has a linkage 11 pivotally connected between the swing crank 9 and the advancing / retracting plate 4, and is a pivot 12 with the advancing / retreating plate 4 in the linkage 11, which is used as a support shaft. The trochanter 8 (pivotal axis 12) on the inclined start end side is slidably mounted in a guide groove 13 formed so as to penetrate along the track of the advancing / retreating plate 4 on the side walls 7, 7a of the fixed tread plate 3, and on the side walls 7, 7a. The trochanter 8a on the inclined end side is slidably mounted in the same shaped guide groove 13a translated parallel to the lower oblique rear side of the guide groove 13.

  Since the swing crank 9 and the linkage 11 in the advancing / retreating mechanism having the above-described configuration are disposed in the gap between the front end portion 3a and the side walls 7 and 7a of the fixed tread plate 3 cut out at the left and right edges of the inclined wall 3b, The dynamic crank 9 and the linkage 11 can bend and extend without any trouble.

Then, the trochanter 8 (the pivot shaft 12) moves back and forth in the guide groove 13 by the bending and extending operation with the linkage 11 by the swinging of the swing crank 9 back and forth, so that the advancing / retreating foot plate 4 is lowered along the guide groove 13. Reciprocates between the storage position X1 and the overhang position Y1.
In the extended state of the advancing / retracting plate 4, the trochanters 8 and 8a are locked to the front ends of the guide grooves 13 and 13a at the rear, and the rubber cushioning material 14 attached to the upper end of the front wall 5 is the front at the side wall 4b. The horizontal state of the advancing / retreating plate 4 is maintained by supporting the lower end.

  The vehicle outside step 2 includes an upper storage position X2 that overlaps the vehicle step S so that it does not protrude outward from the vehicle step S in the retracted state of the advancing / retreating plate 4 and a vehicle step S in the extended state of the advancing / retreating plate 4. A retractable tread plate 15 that is provided so as to be able to reciprocate in conjunction with the advancing / retreating step plate 4 between the vehicle overhang position Y2 that is horizontally disposed in the lower front portion, and is mounted so as to be interlocked with the retracted tread plate 15 so In this state, it is composed of an interlocking tread 16 which overlaps on the stepping plate 15 so that the front end portion 16a does not protrude from the vehicle step S and is connected to the same plane in front of the stepping plate 15 in the overhanging state.

The stepping plate 15 has a longer width than that of the forward and backward stepping plate 4, a strip plate 17 whose rear end is bent into an L shape and a relatively short depth, a reinforcing rod having a concave cross section fixed to the bottom of the strip plate 17, and the reinforcing plate It consists of a side wall 18 which is longer forward than a strip 17 fixed to the left and right of the bag.
At the rear of each side wall 18, a support column 19 is vertically erected, and the support column 19 is formed in a concave shape in a plan view with its inner side open by a side plate 19b parallel to the side wall 18 and its front and rear plates 19a, 19c. The lower ends of the front and rear plates 19a and 19c fixed to the side wall 18 are formed to project in an L shape, and the gap P between the side wall 18 and the front and rear plates 19a and 19c above the fixed portion is connected to the inner space of the column 19 (See FIGS. 1 and 2).

  Then, a pair of left and right bent arms that hangs the stepping plate 15 via the support column 19 at the vehicle overhanging position Y2 between the upper side of the side plate 19b of each support column 19 and the left and right walls 6 and 6a on the vehicle step S. Each of the 20 is connected in a pivotal manner.

  In addition, each arm 20 has an arm link mechanism in which a retractable tread plate 15 that is moved by these swings is horizontally disposed at the upper storage position X2 and the vehicle overhang position Y2, and is controlled so as to be able to reciprocate on a fixed track. Equipped with.

  The arm link mechanism pivotally attaches a bent portion of the bell crank 21 to an appropriate position of the arm 20 (inner bent portion in the illustrated example), and pivots between one end of the bell crank 21 and the tip of the arm 20 outside the side plate 19b of the column 19. Links 22, 23 between the lower part from the attachment part and between the other end of the bell crank 21 and the rear part from the pivotal part of the arm 20 base end of the left and right walls 6, 6a on the vehicle step S, respectively. Are pivotally connected.

In addition, the pivot attachment of the link 23 to the left and right walls 6 and 6a on the vehicle step S in the left and right arm link mechanisms is achieved by fixing the base end portion of each link 23 to the base end shaft 10 of the swing crank 9. Thus, the operations of the left and right arms 20 and the arm link mechanism are synchronized.
In this embodiment, the base end of the link 23 is fixed to the base end shaft 10 of the swing crank 9. However, the base end of the arm 20 may be fixed to the base end shaft 10. The ends are pivotally attached to the left and right walls 6, 6a.
As shown in FIGS. 1 and 2, the column 19, the tip of the arm 20 and the bell crank 21, and the link 22 are covered with two-segment link covers 24 and 24a (only the left side is shown for convenience of explanation). Yes.

  The interlocking tread 16 is slightly longer in width than the stepping plate 15 and is substantially the same in depth as the stepping plate 15, and the front and left and right side edges of the horizontal plate are U-shaped in the same manner as the stepping plate 4. A reinforcing frame is suspended and fixed, and the reinforcing frame forms a front end portion 16a and a side wall 16b of the interlocking tread plate 16, and the side wall 16b extends rearward from the horizontally long rectangular plate.

Then, the interlocking tread 16 is attached to the in / out tread 15 via a link mechanism as appropriate, and the link mechanism is a crank 25 having a base end fixed to the pivot of the arm 20 or the link 22 (link 22 in the illustrated example) in the column 19. The crank 25 is arranged on the inner side of the side plate 19 b of the support column 19.
The link mechanism is attached to the left and right sides of the stepping plate 15 and the interlocking tread plate 16, and a pair of front and rear parallel links 26 and 26a are pivotally connected between the side wall 18 of the stepping plate 15 and the side wall 16b of the interlocking step plate 16. The rear link 26a is formed in a curved shape, and a connecting rod 27 is pivotally connected between the bent portion and the crank 25. .

Incidentally, the side wall 16b of the interlocking tread 16 is inserted through a gap P between the side wall 18 of the stepping plate 15 and the support 19 (front and rear plates 19a, 19c) so that it can operate without being blocked by the support 19. (See FIGS. 1 and 2).
Further, in the column 19, the end portions of the arm 20 and the link 22 are pivotally attached to the outside of the side plate 19b, and a crank 25 is pivotally attached to the inside of the side plate 19b, and a connecting rod 27 connected thereto is disposed. Therefore, the upper portion of the rear plate 19c is formed with a small width so that the bending operation of the crank 25 and the connecting rod 27 is not hindered.

  The vehicle outside step 2 configured as described above is the operation of the arm link mechanism by forward / reverse rotation of the base shaft 10, and the retractable step plate 15 together with the interlocking step plate 16 is located between the upper storage position X2 and the vehicle overhang position Y2. During this movement, the pivot of the link 22 of the arm link mechanism rotates forward and backward, and the crank 25 that rotates in the same direction moves the interlocking tread 16 through the connecting rod 27 and the link mechanisms 26, 26a. It is moved between the upper side and the front side, and is transformed into a retracted state and an extended state.

In order to automatically operate the inside and outside steps 1 and 2, the swing crank 9 and the base end shaft 10 of the link 23 are connected to the drive device 28 so as to be rotatable forward and backward.
This drive device 28 is provided with an electric motor and a speed reducer (not shown) on the left side of a motor base 29 that is erected on the left side of the left wall 6, and passes through the motor base 29 and protrudes toward the left wall 6. And the base shaft 10 projecting outward (left side) from the left wall 6 is a parallel crank mechanism comprising a pair of cranks 30 and 30a having the same length and a linkage 31 pivotally connected between the cranks 30 and 30a. It is connected through.

As a result, the drive device 28 is operated and the drive shaft 28a rotates forward and backward, whereby the crank 30 of the drive shaft 28a swings back and forth, and the base shaft 10 is moved via the linkage 31 and the crank 30a. By rotating the same as the drive shaft 28a, the steps 1 and 2 inside and outside the vehicle are deformed and moved.
In addition, stoppers 32 and 32a that come into contact with the crank 30 are provided at each swing position of the crank 30 corresponding to the extended state and retracted state of the inside and outside steps 1 and 2 (see FIG. 1).

Next, the operation of the auxiliary step configured as described above will be described.
In the indoor retracted state of steps 1 and 2 inside and outside the vehicle, the crank 30 of the drive shaft 28a tilts backward and touches the stopper 32, and the swing crank 9 and the crankshaft 9 through the linkage 31, the crank 30a and the base shaft 10 The link 23 is put back on the vehicle step S.

  As a result, the swing crank 9 and the linkage 11 connected thereto extend rearward, and the trochanters 8 (the pivot shafts 12) and 8a are positioned at the rear ends of the guide grooves 13 and 13a. Is retracted to the lower storage position X1 on the fixed tread 3, the rear end is overlapped on the front end 3a of the fixed tread 3, and the front end 4a of the advancing / retreating step 4 is not projected forward from the vehicle step S to the outside of the vehicle. The vehicle is placed on the vehicle step S via the fixed tread 3.

  Further, the support column 19 and the links 22 and 23 are bent in a trifold shape on the vehicle step S, that is, the support column 19 is upright, the link 22 connected thereto is inverted backward, and the link 23 is connected to the link 23 via the bell crank 21. The connected arm 20 is also moved backward on the vehicle step S so that the retractable tread plate 15 is horizontally disposed at the upper storage position X2 on the advancing / retreating step plate 4.

As with the link 22, the crank 25 that moves backward causes the crank 25 and the connecting rod 27 connected thereto to extend rearward, and the links 26 and 26 a are moved backward to move the interlocking tread 16 on the retracted tread 15. The front end portion 16a is stored horizontally on the stepping plate 15 without protruding from the vehicle step S to the outside of the vehicle.
Therefore, the steps 1 and 2 inside and outside the vehicle are stored in multiple layers on the vehicle step S so that the treads 3, 4, 15, and 16 constituting the respective steps contract in order to correspond to the depth of the vehicle step S. There will be no hindrance.

In order to project the inside and outside steps 1 and 2 from the stored state, the drive device 28 is operated, and the base shaft 10 is rotated via the cranks 30 and 30a and the connecting rod 31, thereby swinging the vehicle in the backward state. The dynamic crank 9 and the link 23 are swung forward.
As a result, the swinging crank 9 and the linkage 11 are bent forward, and the trochanters 8 (the pivot shafts 12) and 8a are positioned at the front end located below the rear ends of the guide grooves 13 and 13a, and the advancing / retreating plate 4 is fixed. Place in the overhanging position Y1 in front of the tread board 3, connect the advancing / retreating tread board 4 and the fixed tread board 3 back and forth on the same plane, and get in and out of the vehicle step S from the vehicle step S in a state where the depth is longer than the vehicle step S Project outside the car in front of the mouth.

  At the same time, the support column 19 and the links 22 and 23 bent in a trifold shape gradually expand, and the arm 20 similarly swings forward through the bell crank 21 so that the stepping plate 15 moves forward and backward together with the interlocking step plate 16. While moving away from the upper storage position X2 on the tread board 4, the vehicle is advanced forward, and eventually moves on a fixed track to the overhang position Y2 in the lower front part of the vehicle step S to reach the outboard position Y2.

  In the process of moving to the vehicle overhanging position Y2, the link 22 that was in an inverted state on the vehicle step 2 gradually turns forward and rises, so that the crank 25 that has been inverted is brought upright and connected to the crank 25. When the rod 27 is bent, the links 26 and 26a are tilted forward, and when the stepping plate 15 reaches the vehicle overhanging position Y2, the interlocking stepping plate 16 is placed in front of the stepping plate 15 and connected to the same plane to The whole is extended to the front lower part of the vehicle step S (entrance / exit) with the depth longer than the vehicle step S.

In such a state, the driving device 28 stops, and the crank 30 falls forward and touches the stopper 32a.
As described above, the outside step 2 with a long depth and an expanded area is used as a foot joint between the in-vehicle step 1 and the area on the vehicle step S which are also expanded in front of the entrance and exit.

  In order to store the vehicle interior / exterior steps 1 and 2 in the overhanging state, the drive device 28 is operated to swing the base end shaft 10 backward in the reverse direction, so that the vehicle interior / exterior steps 1 and 2 are performed. The treads 3, 4, 15, and 16 constituting each of them are stored on the vehicle step S in multiple layers.

1 Step inside the car 2 Step outside the car 3 Fixed tread 4 Forward / backward tread
4a Front end 9 Swing crank
15 Raised tread board
16 Interlocking tread
16a Front end
19 Prop
20 arms
21 Bell crank
22 links
23 links
25 cranks
26, 26a Link mechanism
28 Drive unit S Vehicle step
X1 Lower storage position
X2 Upper storage position
Y1 overhang position
Y2 vehicle overhang position

Claims (2)

A fixed tread that is horizontally arranged on an existing vehicle step so as not to protrude outward, a lower storage position that overlaps the fixed tread so that the front end of the vehicle step does not protrude forward outside the vehicle, and the vehicle An in-vehicle step composed of an advancing / retreating step plate that is reciprocally movable between an extension position connected to the front of the fixed tread plate in the same plane in front of the fixed tread plate so that the front end portion protrudes to the front outside the vehicle by a predetermined length from the step; An upper storage position that overlaps the vehicle step so that it does not protrude outward from the vehicle step in the retracted state of the advancing / retracting plate, and a vehicle outside protruding position that is horizontally disposed at the front lower part of the vehicle step with the advancing / retreating plate protruding An in / out tread plate that is provided so as to be able to reciprocate in conjunction with the advance / retreat step plate, and is mounted on the in / out step plate so that the front end portion does not protrude from the vehicle step when the in / out step plate is retracted. Oh And Rappu made constituted by the outside of the vehicle steps consisting of interlocking step board which connects on the same plane in the front of this in the projecting state of the infested treadle infested step board is vertically erected pillars to the left and right, and each strut Each of a pair of left and right arms that suspend the column at the vehicle overhang position is pivotally connected to the vehicle step, and a bent portion of a bell crank is pivotally mounted at an appropriate position of each arm. , And the other end of the bell crank and the vehicle step are pivotally connected to each other, and the swinging crank having the base shaft that is the same as the arm or link pivotally attached to the vehicle step is appropriately advanced and retracted. It is connected to the advancing / retreating step board via a mechanism, the interlocking step board is attached to the in / out tread board via a link mechanism as appropriate, and the link mechanism is connected to a crank having a base end fixed to the pivot of the arm or the link in the column. To Indoor retractable auxiliary step. 2. The retractable auxiliary step in the vehicle interior according to claim 1, wherein the base end shaft is connected to a drive device so as to be rotatable forward and backward .

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