JPH08173480A - Turning/elevating device for a sitting part in elevator for vehicle - Google Patents

Abstract

PURPOSE: To obtain a large stroke and to comprise a whole device compact by arranging an elevator which supports a sitting part with an elevation guide supporting cylinder and guiding and elevating it. CONSTITUTION: To sending out the sitting part 12 outside a vehicle, a door is opened by unlocking through drawing an upper wheel 50 from a cabin and elevating a lock pin 7, turning the sitting part 12 together with the elevation guide supporting cylinder 17 around a rotary supporting shaft 1, and sending out the sitting part 12 from a cabin entry/exit. At this time, the elevation guide cylinder 17 is fixed by fitting the lock pin 7 in the lock hole 9 for outside vehicle of a disk 10. When an oil valve communicating with an oil cylinder 20 for tensile force is opened, since the load of the sitting part 12 is applied to a piston rod 21, oil is discharged from the oil cylinder 20 for tensile force, and the piston rod 21 is elevated, and a wire 32 is relaxed, and the elevator 37 is descended to a position where it is brought into contact with the bottom or the lower terminal of the opening of the elevation guide supporting cylinder 17, then, the sitting part 12 is descended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turning / lifting device for a sitting portion of a vehicle lifting device.

[0002]

2. Description of the Related Art Conventionally, a parallel link type lifting device has been mainly used also in a vehicle lifting device such as a bus in which the floor of a vehicle compartment is relatively high from the ground and a large lifting stroke is required.

[0003]

As described in the prior art, the floor of the passenger compartment is relatively high from the ground like a bus,
Even in a vehicle elevating device that requires a large elevating stroke, a parallel-link elevating device is mainly used, so that the platform greatly approaches the side of the vehicle and it is difficult to secure a hoisting place.

In particular, when the seat is turned outside the vehicle and the passenger is going up and down to get on and off, not only the turning mechanism and the elevating and lowering mechanism become complicated, but also the cost becomes high, and smooth operation cannot be expected. The lifting device according to the present invention has been made for the purpose of eliminating the above-mentioned drawbacks.

[0005]

[Means for Solving the Problems] Rotating support shafts are rotatably supported by bearing upper and lower ends in a vehicle compartment, and a lifting guide support cylinder is vertically supported integrally by the brackets on the rotating support shafts and pivoted together. A lifting mechanism for freely supporting the lifting frame with a seating portion mounted therein is provided within the lifting guide support cylinder so that it can be lifted up and down along the inner wall surface, and a power mechanism installed inside the lifting guide support cylinder. Relatedly, it is provided so that it can be raised and lowered freely, and a lock pin that moves up and down is provided on the lower end of the rotating strut shaft, and a lock hole corresponding to this lock pin and a concentric circle is formed, and the seating portion is positioned inside the vehicle by turning around the rotating strut shaft And a position outside the vehicle that is fixedly arranged so as to be engaged with the position outside the vehicle.

The rotating column shaft is rotatably supported by fitting upper and lower upper end shaft portions and lower end shaft portions respectively corresponding to an upper bearing provided on a ceiling surface of a vehicle interior and a lower bearing provided on a floor surface. You can do it.

The power mechanism to be installed inside the lower half of the lifting guide support cylinder is such that an elongated oil power generation oil cylinder occupying the center of the lifting guide support cylinder is arranged with its lower end pivotally supported by a spindle. , The piston rod is projected from the power generation oil cylinder, the bearing is provided at the tip of the piston rod to mount the lower pulley, and the wire connecting shaft is provided at the extension extending further upward to support the lifting guide. An upper pulley is supported in parallel in the upper part of the cylinder, and one end of the wire is connected to a wire connecting shaft provided in the extension part of the piston rod, and the wire is pulled up and hung on the upper pulley and lowered. Then, hang it on the lower pulley, pull it up and hang it on the upper pulley, then lower it again and pull it outward from the guide hole to support it on the lifting body. In which may be coupled to the lifting frame.

The elevating guide support cylinder is formed with guide holes having vertical hole edges parallel to each other on the outer peripheral surface, and the power mechanism, the lower pulley, and the like are formed on the front inner wall surfaces on both sides of the vertical hole edges. The upper front bearing wheel, which is in contact with and avoiding the related mechanism of above, is on the upper side, and the power mechanism is also on the inner wall surface on the opposite rear side,
A lower rear supporting wheel that contacts the lower pulley and other related mechanisms is provided on the lower side, and it is also arranged behind the upper front supporting wheel avoiding the power mechanism, the lower pulley and other related mechanisms, and has a 90 degree discrepancy. The upper side bearing ring that contacts the left and right side inner wall faces upward, and is also placed in front of the lower rear bearing ring, avoiding the power mechanism, the lower pulley and other related mechanisms, and is displaced by 90 degrees to the left and right inner side wall faces. An elevating body having a lower side bearing wheel in contact with the lower side may be arranged.

In the operation mechanism associated with the lock pin, a lock pin bearing plate is attached to the lower end of the rotating column shaft, and the lock pin is slidably inserted vertically into a bearing hole provided in the bearing plate. An expansion spring may be provided on the upper surface, and the lock pin may be always urged downward to descend to be engaged with the vehicle interior position lock hole and the vehicle exterior position lock hole.

The handle operating mechanism associated with the lock pin pivotally supports the lower handle on a lower pivot provided on the lower outer periphery of the lifting guide support cylinder, and is connected to the upper end of the lock pin via a lower connecting rod. Also, an upper handle pivotally supported by an upper pivot provided on the outer periphery of the middle portion of the lifting guide supporting rectangular tube may be connected by an upper connecting rod.

[0011]

Since the present invention is constructed as described above, when the seating portion is stored in the passenger compartment, the elevating frame is pulled up to the highest position by the power mechanism in the elevating guide support cylinder. The seating section is located in the passenger compartment. Therefore,
As with the seats in the general passenger compartment, it is possible to sit down and ride on this seat.

Next, in order to extend the seating portion to the outside of the vehicle, for example, the door is opened, and the upper handle of the operating mechanism associated with the lock pin is pulled from the passenger compartment toward the front to raise the lock pin. When you lower the lower handle and pull it up from the lock hole for the inside of the vehicle, the lock is released, and you can turn the seating part together with the lifting guide support tube around the rotating column shaft, and the seating part is outward from the vehicle entrance Send to. Therefore, the lock pin is re-fitted into the vehicle exterior lock hole, and the lift guide support cylinder is fixed in this state. Therefore, when the power mechanism is opened, the lifting body is lowered by the load of the sitting portion until it comes into contact with the bottom surface of the lifting guide support cylinder or the lower end of the opening, and the sitting portion supported by this is lowered. Then, it is possible to stand directly on the road surface from the sitting portion outside the vehicle.

Next, on the contrary, when riding in the passenger compartment,
When the seating section is set down outside the vehicle in the above order,
The sitting portion is seated, and in this state, the lifting portion is raised by the power mechanism to raise the sitting portion. When the upper end reaches the predetermined position, operate by holding the lower lever or the upper lever in the operating mechanism related to the lock pin, remove the lock pin from the vehicle exterior lock hole, and when the lock becomes free, center on the rotating prop car. Rotate the lifting guide tube,
After the seat portion is pivotally moved into the vehicle compartment, the lock pin is fitted into the vehicle interior lock hole again and locked in a state where it is set at a predetermined position in the vehicle compartment.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings, which are an example of an embodiment. Reference numeral 1 denotes a rotating column shaft, which is provided, for example, on an upper bearing 3 provided on a ceiling surface 2a of a vehicle interior 2 and a floor surface 2b. Upper and lower upper end shaft portions 5 and lower end shaft portions 6 are fitted to the lower bearings 4 to rotatably support them, and a lock pin 7 that moves up and down at the lower end is provided. A disk 10 is formed so as to be opened at a predetermined angle away from the vehicle outer position lock hole 9 and fixed to the lower bearing 4.

More specifically, as shown in FIG. 5, the rotary strut shaft 1 supports the lower end shaft portion 6 with respect to the lower bearing 4 through a thrust ball bearing 11 in the thrust direction and the turning direction and from the outside. An oil pipe 14 is connected via a universal joint 13 as the lifting power of the seating portion 12 so that the working oil can be supplied to the rotating strut shaft 1.

Brackets 15 and 16 are attached to the rotary support shaft 1, and the lifting guide support cylinder 1 is attached to the brackets 15 and 16.
7 is vertically supported.

Inside the upper part of the lifting guide support cylinder 17,
The upper pulleys 18 and 19 are supported in parallel.

Inside the lower half of the lifting guide support cylinder 17,
A slender tension power generation oil cylinder 20 occupying the center portion is arranged with its lower end pivotally supported by a support shaft 20a, and a piston rod 21 is projected from the power generation oil cylinder 20 and at the tip of the piston rod 21. The bearing portion 22 is provided to support the lower pulley 23, and the wire connecting shaft 25 is provided to the extension portion 24 extending further upward.

An oil pipe joint 26 is provided on the upper rear surface of the pulling power generating oil cylinder 20, and the tip of the oil pipe joint 26 is extended outward from an opening 27 in the rear surface of the elevating guide support cylinder 17 to form an outer peripheral surface on the rotary strut shaft 1. The oil pipe joint 28 and the pipe 29 projecting from each other communicate with each other.

As shown in FIGS. 1 and 2, the lifting guide support cylinder 17 has a vertical hole edge 30 parallel to the outer peripheral surface thereof.
A guide hole 30 having a and 30a is opened, and the pulling power generating oil cylinder 20, the lower pulley 23 and the wire 32 described below are avoided on the front inner wall surfaces 17a on both sides of the vertical hole edges 30a and 30a. An upper front bearing wheel 33 that contacts is provided on the upper side, and a lower rear bearing wheel 34 that contacts the opposite inner wall surface 17b while avoiding the pulling power generation oil cylinder 20, the lower pulley 23 and a wire 32 described below is provided on the lower side, Similarly, the pulling power generating oil cylinder 20, the lower pulley 23, and a wire 32, which will be described later, are arranged behind the upper front support wheel 33, and the left and right side inner wall surfaces 17c and 17 are displaced by 90 degrees.
The upper side support wheel 35 in contact with d is directed upward, and the same pulling power generation oil cylinder 20 and lower pulley 2 are also used.
3 and the below-mentioned wire 32, and the lower rear support wheel 3
It is placed in front of 4 and is 90 degrees apart, and the inner wall surfaces 1 on the left and right sides
An elevating body 37 having a lower side support wheel 36 in contact with 7c and 17d on the lower side is arranged.

One end of the wire 32 is connected to a wire connecting shaft 25 provided in the extension 24 of the piston rod 21, and is pulled up to be hooked on the upper pulley 19, and lowered to be hooked on the lower pulley 23. , This is pulled up and hung on the upper pulley 18, then lowered again and pulled out outward from the guide hole 30,
It is connected to the elevating frame 38 supported by the No. 7 and deployed. The sitting portion 12 is supported at the tip of the elevating frame 38. The upper pulleys 18 and 19 are vertically adjustable.

The operating mechanism 39 for connecting the lock pin 7 is
As shown in FIG. 6, a lock pin bearing plate 40 is attached to the lower end of the rotating column shaft 1, and a bearing hole 41 provided in the bearing plate 40.
The lock pin 7 is slidably fitted in the upper and lower portions of the lock pin 7 and the expansion spring 42 is attached to the upper surface of the lock pin bearing plate 40.
Is deployed, and the lock pin 7 is always urged downward to descend.
It is provided so as to engage with the lock holes 8 and 9 of the disk 10.

The expansion spring 42 is surrounded by a supporting frame 43, the upper end of which is in contact with the upper inner surface of the supporting frame 43, and the lower end of which is a washer 44.
Is in contact with The washer 44 has the lock pin 7 by the pin 45.
The pin 45 contacts the lower inner surface of the support frame 43,
It is provided so that it does not descend further.

A lower handle 47 is pivotally supported on a lower pivot 46 provided on an outer periphery of a lower portion of the lifting guide support cylinder 17, and is connected to an upper end of the lock pin 7 through a lower connecting rod 48. An upper handle 50 pivotally supported by an upper pivot 49 provided on the outer periphery of the middle portion of the guide support cylinder 17 is connected by an upper connecting rod 51.

Since the present invention is constructed as described above, when the passenger seat 12 is stored in the passenger compartment 2,
In the lifting guide support cylinder 17, the piston rod 2 is moved by the oil operation of the pull power generation oil cylinder 20.
1 is reduced to the lowered position and pulled up the wire 32,
The elevating frame 38 connected to one end of the elevating frame 38 is pulled up to the highest position. Therefore, as shown by the solid line in FIG. 8, the sitting portion 12 is arranged. Therefore, as in the case of the seat in the general passenger compartment, it is possible to sit down and ride on the seating portion 12.

Next, in order to extend the sitting portion 12 out of the vehicle,
Open the door (not shown) of the passenger compartment, and pull the upper handle 50 from inside the passenger compartment, for example, toward you to lock the lock pin 7.
And the lower handle 47 is lowered from the outside of the vehicle and pulled up from the in-vehicle position lock hole 8 of the disk 10, the lock is released, and the seating portion 12 is lifted around the rotating support shaft 1 together with the lifting guide support cylinder 17. It can be turned, and the seating portion 12 is sent out from the passenger compartment entrance 52. Therefore,
The lock pin 7 is re-fitted into the vehicle exterior lock hole 9 of the disk 10, and the lift guide support cylinder 17 is fixed in this state. Then, when an oil valve (not shown) communicating with the pulling power oil cylinder 20 is operated and released, the load of the seating portion 12 is applied to the piston rod 21,
Oil is discharged from the pulling power oil cylinder 20, the piston rod 21 rises, and the connecting wire 3
2 is loosened and the lifting / lowering body 37 is lowered until it comes into contact with the bottom surface of the lifting / lowering guide support cylinder 17 or the lower end of the opening, and the sitting portion 12 supported thereby is lowered. Then, it is possible to stand directly on the road surface from the sitting portion 12 outside the vehicle.

On the other hand, when the passenger compartment 1 is to be boarded, the seating portion 12 is set down outside the vehicle in the above order,
Sit on the sitting portion 12 and leave the sitting portion 12 as it is.
The wire 32 is pulled by the action of the pulling power oil cylinder 20 and the piston lot 21 to raise the elevating body 37 and raise the sitting portion. When the upper end reaches a predetermined position, the lower lever or the upper lever is operated to remove the lock pin 7 from the vehicle exterior position lock hole 9, and when the lock is released, the lifting guide cylinder is centered around the rotary propeller car 1. After rotating and pivoting the seat portion 12 into the vehicle compartment 1, the lock pin 7 is fitted into the vehicle interior position lock hole 8 of the disk 10 again, and locked in a state where the vehicle compartment 1 is set at a predetermined position. It is a thing.

The above-described embodiment of the lifting device of the present invention has been shown to be installed in the passenger compartment in the latter half of the bus, but it can also be installed in the general front entrance / exit, and the seating part can be installed outside the passenger compartment through the entrance / exit. It is possible to swivel and move to the position, lock the elevating guide support cylinder at that position, elevate and lower the seat riding portion, and get on or off the seat directly on the road while sitting down on the seat.

[0029]

Since the lifting device of the present invention is as described above, the floor surface of the passenger compartment is relatively high from the ground like a bus.
Even if a large lifting stroke is required, a lifting stroke that supports the seating portion is provided on the lifting plan support cylinder, and a large stroke can be obtained by guiding and moving up and down, compared to the conventional parallel-link lifting device. The whole can be compactly constructed.

Further, the lifting device is divided into a rotating support shaft and a lifting support tube, so that a swing center support mechanism is provided.
The lifting mechanism is dedicated to each of them, so that the structure can be simplified, the operation can be made reliable and smooth, and the operability of the lock mechanism can be improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a vehicle lifting device according to the present invention.

FIG. 2 is a right side view of the same.

FIG. 3 is a left side view of the same.

FIG. 4 is an enlarged cross-sectional view showing a bearing structure that supports the upper end of the rotary column shaft.

FIG. 5 is an enlarged cross-sectional view showing a bearing structure that also supports the lower end of the rotary column shaft.

FIG. 6 is a side view showing a seat riding portion turning lock mechanism.

FIG. 7 is a front view of a single disk that is fitted with a lock pin of a seat riding portion turning lock mechanism.

FIG. 8 is also a front view showing the whole of the elevator device for a vehicle according to the present invention, in which a phantom line shows a state in which the seating portion is pushed out of the passenger compartment and lifted.

FIG. 9 is a side view showing a state in which the sitting portion is raised and lowered.

FIG. 10 is a view showing a state in which the seat riding section is also turning.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rotating column shaft 2 vehicle interior 2a ceiling surface 2b floor surface 3 upper bearing 4 lower bearing 5 upper end shaft portion 6 lower end shaft portion 7 lock pin 8 vehicle interior position lock hole 9 vehicle exterior position lock hole 10 disk 11 thrust ball bearing 12 seating portion 13 Universal Joint 14 Oil Pipe 15 Bracket 16 Bracket 17 Lifting Guide Support Cylinder 17a Front Inner Wall Surface 17b Rear Inner Wall Surface 17c Left Side Inner Wall Surface 17d Right Side Inner Wall Surface 18 Upper Pulley 19 Upper Pulley 20 Oil Cylinder 20a for Pulling Power Shaft 21 Piston rod 22 Bearing part 23 Lower pulley 24 Extension part 25 Wire connecting shaft 26 Oil pipe joint 27 Open hole 28 Oil pipe joint 29 Pipe 30 Guide hole 30a Vertical hole edge 32 Wire 33 Upper front bearing ring 34 Lower rear bearing ring 35 Upper part ~ side Bearing wheel 36 Lower side bearing wheel 37 Lifting body 38 Lifting frame 39 Operating mechanism 40 Lock pin bearing plate 41 Bearing hole 42 Expansion spring 43 Support frame 44 Washer 45 pin 46 Lower pivot shaft 47 Lower handle 48 Lower connecting rod 49 Upper pivot shaft 50 Upper handle 51 Upper Connection Rod 52 Car Doorway

Claims (6)

[Claims] 1. A rotating pillar shaft is rotatably supported by bearing upper and lower ends in a vehicle compartment, and a lifting guide support cylinder is vertically supported integrally by a bracket on the rotating pillar shaft so as to be rotatable together. An elevating body that supports an elevating frame with a seating portion is installed inside the elevating guide support cylinder so that it can be moved up and down along the inner wall surface. Freely provided, a lock pin that moves up and down at the lower end is provided on the rotary strut shaft, and a lock hole corresponding to the lock pin and a concentric circle is provided. A rotation / elevating device for a sitting portion in a vehicle elevating device, characterized in that it is fixedly arranged so as to engage with. 2. The rotating support shaft is rotatably fitted by fitting an upper bearing and a lower bearing corresponding to an upper bearing provided on a ceiling surface of a vehicle compartment and a lower bearing provided on a floor surface, respectively. The rotation / elevation device for a seating portion in the vehicle elevating device according to claim 1, which is supported. 3. A power mechanism installed inside the lower half of the lifting guide support cylinder is arranged such that an elongated pulling power generating oil cylinder occupying the center of the lifting guide support cylinder is pivotally supported at its lower end by a spindle. Then, the piston rod is projected from the power generation oil cylinder, and a bearing portion is provided at the tip of the piston rod to mount the lower pulley,
A wire connecting shaft is provided in the extension part that extends further upward,
Inside the upper part of the lifting guide supporting cylinder, an upper pulley is supported in parallel, and the wire has one end connected to a wire connecting shaft provided in an extension part of the piston rod, and is pulled up to be hung on the upper pulley, Go down and hang it on the lower pulley, pull it up and hang it on the upper pulley,
Then, it is lowered again, pulled out outward from the guide hole, and connected to an elevating frame supported by an elevating body. Rotating / elevating device. 4. The lifting guide support cylinder has guide holes formed on the outer peripheral surface thereof and having vertical hole edges that are parallel to each other, and the power mechanism, the lower pulley, and the lower pulley are provided on the inner wall surfaces on both sides of the vertical hole edges. An upper front bearing ring that contacts without avoiding other related mechanisms is provided on the upper side, and a lower rear bearing wheel that contacts with the power mechanism, the lower pulley and other related mechanisms while avoiding other inner surfaces is provided on the lower side. The power mechanism, the lower pulley and other related mechanisms are disposed behind the upper front bearing wheel, and the upper side bearing wheels that are 90 degrees apart and contact the inner wall surfaces of the left and right sides are on the upper side. An elevating body having a lower side support ring on the lower side, which is arranged in front of the lower rear support wheel and is in contact with the left and right side inner wall surfaces by 90 degrees while avoiding the pulley and other related mechanisms, is arranged. Claim 1, Claim 2 characterized by
And a rotation / elevating device for a sitting portion in the vehicle elevating device according to claim 3. 5. An operating mechanism associated with a lock pin is such that a lock pin bearing plate is attached to a lower end of a rotating column shaft, and the lock pin is slidably fitted in a bearing hole provided in the bearing plate, and at the same time, the bearing plate. An expansion spring is provided on the upper surface of the disk, and the lock pin is constantly urged downward to descend to engage with the in-vehicle position lock hole and the out-vehicle position lock hole of the disc. Rotation / elevation lifting / lowering device for a seating portion in the vehicle lifting / lowering device according to claim 1, claim 2, claim 3 or claim 4. 6. A handle operating mechanism associated with a lock pin has a lower handle pivotally supported on a lower pivot provided on an outer periphery of a lower portion of a lifting guide support cylinder, and is connected to an upper end of the lock pin via a lower connecting rod. The handle and an upper handle pivotally supported by an upper pivot provided on the outer periphery of the middle portion of the lifting guide supporting rectangular tube are connected by an upper connecting rod. , Claim 4 and claim 5
A rotation / elevation device for a sitting portion in the above-described vehicle elevating device.