JP5088653B2 - Lifting device and bus - Google Patents

Description

  The present invention relates to a bus, and more particularly, a bus provided with an elevating device for passengers, wheelchairs and the like to get on and off in the vehicle.

  Nowadays, those who have physical disabilities due to illness, accidents, or congenital causes are also encouraged to participate in society in order to live an independent life. Yes. Along with this situation, various measures are being adopted to build a society where healthy and physically disabled people live together. For example, in terms of traffic as a daily means of transportation, in 2006 The “New Barrier-Free Act” has been implemented by integrating the “Transport Barrier-Free Act” and the “Heart Building Act”.

  The main aim of this “barrier-free new law” is to define so-called non-step buses as standard cars for city buses with low floor height to make it easier for people with disabilities to get on and off. On the other hand, in addition to the long distance travel, intercity route buses have a lot of passenger luggage, so use a tourist-specific bus with a luggage room underneath the floor to accommodate them. Inevitably, the guidelines for the “New Barrier-Free Act” described above are exempted from application due to difficulty in handling due to the structure and mode of operation, and the improvement remains a goal.

  By the way, high-decker buses, which are currently mainstream as intercity buses or sightseeing buses, have high floors and structurally steep slopes for boarding / exiting, not only for wheelchair users but also for people who have difficulty walking. It is difficult to get on and off, and bus trips that have excellent views and are ideal for sightseeing are difficult to get on and off, impairing substantial comfort, and have to abandon the trip.

  Currently, the mainstream of getting on and off devices in wheelchairs, which are often used as getting on and off devices, is a state in which a simple fall prevention device (removable handrail and wheelchair wheel pawls) is attached to the floor of a lift that protrudes from the side of the bus body. Ride at the side of the car body, in other words, because it goes up and down outside the car, it is unstable and frightened with a lift of 2 meters on the wheelchair, and there is no roof in rainy weather or snowy weather As well as passengers, the lift plate gets wet, and as a result, it becomes slippery, and there is a risk of falling and falling.

  In addition, when using the lift, a space of 2 meters or more is required from the side of the vehicle body, and it is necessary to secure a wide parking lot. In addition to confirming the safety of passengers, consideration for surrounding pedestrians, surrounding traffic, etc. The use of lifts with passengers who are difficult to walk on is also prohibited, such as safety considerations, and the use of lifts with standing passengers that are difficult to walk is prohibited. The bus stop is not usable.

  Under such circumstances, the applicant has proposed the bus elevator floor device disclosed in Patent Document 1, that is, the bus elevator floor device is installed in the vehicle, and it is used for passengers getting on and off from the road ground to the vehicle seat floor. The lift mechanism of the floor is a two-system guide roller that uses a punter crank mechanism of the lift platform for the lift platform to raise and lower the lift floor platform, and a lift floor movable mechanism by the drive shaft of the lift floor mount to raise and lower the lift floor. When it is in operation, two seats are removed during operation, and the two seats before and after it are folded back and forth are opened to the height of the lifted floor surface on the seating floor surface. After that, the elevator floor is returned to the seating surface and fixed, and the two front and rear seats are returned and fixed to operate.

However, even in the bus elevating floor apparatus described in Patent Document 1, the following improvements have been made. Specifically, due to the limitation of the vehicle weight, the weight is reduced, the structure is simplified, and the safety is improved. Improvement, reliability of operation, adaptability to various usage environments (moving range of lifting device floor surface is selected depending on the operation mode from vehicle traveling road surface to walking road surface and trunk floor surface) when used as a bus trunk Ensuring versatility of buses by improving the trunk floor structure.
JP 2007-8432 A

  The present invention has been made in view of the above-described points, and at least one passenger who rides on a wheelchair on a bus and its caregiver, or at least one passenger who is poor in walking (weak) and difficult to walk, usually gets on and off. With the door on the side of the bus opened and boarded, it can be lifted and lowered in the bus car from the floor of the road or the underfloor trunk room floor of the bus to the aisle and seat floor safely and quickly only in the car with the door closed. It is intended to provide a bus equipped with an elevator that operates only in the car.

  The configuration of the bus according to the present invention for solving the above-described problem is that a passenger who rides in a wheelchair and a caregiver, and at least one passenger who has difficulty in walking (weak) and difficult to walk can get on and off only in the vehicle. It exists in the point which installed the elevator in the car.

  Moreover, the structure which concerns on this invention for solving the subject mentioned above has the structure driven by winding of the pulley 13 of a drive by an electric motor etc. by suspending an apparatus floor surface using the chain or the toothed belt 15. In the screw jack type, a bus provided with an elevating mechanism that vertically moves the apparatus floor surface with a wire rope by the rotation of a traveling nut type screw jack 24 driven by an electric motor.

  Furthermore, the configuration according to the present invention for solving the above-described problem is that the boarding opening 6 extends from the lower part of the window frame of the left side body to the lowermost part of the side of the body including the trunk opening under the bus floor. Open the body to the width of about the long side of, and attach the dedicated door 5 that opens and closes only when getting on and off.

  The floor surface of the lifting device ascends / descends from the ground surface, sidewalk, or trunk floor surface to the bus passage or seat floor surface.

  According to the present invention, an elevator as a boarding / alighting device is installed in a vehicle, and since it is only in the vehicle to get on and off the vehicle, it is not affected by the weather, safety is ensured, and a normal elevator for the user is also provided. It is possible to get on and off quickly without feeling afraid because it is used as a sense of use, and as well as general sightseeing buses, demand is expanding recently, intercity express buses, airport routes and membership tours It is possible to use bus stops and parking lots in existing spaces even for buses, etc., and it is possible to secure the safety of the surroundings and prevent other traffic from being disturbed, improving convenience for users and providing convenient and inexpensive fare buses. Traveling and sightseeing will be familiar and will help reduce the burden on the crew.

  Hereinafter, the bus according to the present invention will be described based on the embodiments shown in the drawings. (FIG. 1) to (FIG. 2) show an embodiment of mounting on a bus. As a result of earnest research, the present invention has been completed in order to require the ability to lift passengers with weak legs and legs, which are difficult to walk, such as stairs and stairs, from the ground to the floor of the in-car seat, and to ascend and descend quickly.

  This elevating floor device is a suspension that allows the elevating device floor surface to be lowered to the traveling road surface in consideration of various usage conditions such as ordinary sightseeing buses, pick-ups traveling on highways, route buses, etc. and passenger convenience There are two types: a push-up type with a jack and a push-up hanging type.

  The bus elevator floor device is installed on the left side of the bus, and the entrance door 5 is attached by a front / rear slide type, a front hinge, a rear opening, or the like, and the mounting position details and the door structure are not particularly limited. (Fig. 1 and Fig. 2)

  The wall surface of the lifting device according to the present invention has a wall plate that moves equally to the floor surface of the lifting device and a wall plate that is fixed to the lifting device, and a mechanism that slides on the floor surface of the lifting device or the interior wall surface. is there.

The floor surface of the toothed belt or chain drive type trunk room can be used as a pull-out type (FIGS. 6 and 7), and can be used as a trunk room of a normal bus when traveling.
The trunk floor surface of the screw jack type bus is fixed, and when the wheelchair is used, the trap 27 (FIGS. 12 and 13) installed on the trunk floor surface is pulled out and used.

  When using the bus lifting device, slide and fold two or three rows before and after the passenger seat (Fig. 1) on the lifting floor to secure the space above the lifting floor. To prevent falling, install a chain etc. around the slide or folded seat to prevent falling. The seat seat slide type and folding type are determined by the structure and arrangement of the bus.

  Hereinafter, the structure and embodiments of the present invention will be described with reference to the drawings, taking a high-decker bus as an example.

FIG. 3 shows a state where the lifting device floor surface is lowered to the traveling road surface, and the movable wall plate 10 is pulled down in conjunction with the lifting device floor surface. The drive structure of the lifting device is such that the toothed pulley 13 or sprocket 13 is wound up by the rotation of the pulley driven by a motor with the toothed belt 15 that also serves as the elevator side wall plate or the roller chain 22. .

  FIG. 5 shows a state in which the movable inner wall plate is raised while the lifting device floor is raised to the passenger seat floor.

  FIG. 6 is a sectional view of the structure of the slide retractable trunk floor as seen from the front of the bus. The trunk floor board is pulled out and air is put into the tube 20 for dustproofing and waterproofing.

  FIG. 7 is a structural diagram of the retractable trunk floor as viewed from the front of the boarding gate. The rail 21 is fixed to the lower part of the trunk of the bus, the trunk floor is slid by the bearing 19 and the trunk floor is stored in the storage cover 34 when the elevator floor is lowered to the road or sidewalk. When the bus is in operation, after the bus trunk floor is pulled out, the tube 20 is filled with air to prevent running water and dust from entering the trunk.

FIG. 8 is a structural diagram of a roller chain with an adapter.
A plate 23 is fixed to a chain 22 with an attachment to form a side wall plate of the lifting device.

FIG. 9 shows a toothed belt or chain drive type winding mechanism.
Two toothed pulleys or sprockets 13 are installed at the top and bottom, driven by the power of the motor, and pressed by a small-diameter idler pulley 14 to increase the number of meshing teeth of the pulley (sprocket) to prevent tooth skipping and use multiple rows. To prevent problems such as disconnection and to ensure safety.

  10 and 11 are cross-sectional views from the side of the bus of the lifting device in which the lifting device floor is lowered to the trunk floor of the bus. The drive is suspended by a screw jack and is equipped with a traveling type screw jack 25 at the four corners of the lifting device floor. The pulley 26 is arranged around the screw jack shaft, and it is made compact by using an indirect drive using a wire rope. Enabled stable operation.

  FIGS. 12 and 13 are cross-sectional views from the front of the bus in the structure of the bus trunk of the lifting device in which the floor of the lifting device descends to the floor of the trunk of the bus. The floor of the lifting device descends to the floor 16 of the bus trunk room, and when getting on and off, the air of the bus air suspension is pulled down to lower the vehicle height so that people with weak legs or those who have difficulty walking can get on more quickly. Corresponds to the use of the trap 27. Store the trap on the trunk floor when not in use.

  FIG. 14 is a plan view of the floor surface of the screw jack type lifting device, the traveling jack, the wire rope attachment portion, and the inner wall plate of the lifting device.

FIG. 15 is a development view of FIG. By providing narrow slits at the four corners of the side wall plate of the lifting device, the floor surface was stabilized and passengers were safe.
By doing so, the stability of the lift floor and the safety of passengers were achieved.

  Although the best mode for carrying out the invention is directed to a high-decker bus, a similar mechanism can be applied to other standard decker buses and one-step route buses, and can be included in the subject of the present invention. .

Explanatory drawing of the raising / lowering apparatus in the high decker type bus concerning this invention. The side view of the bus attached to the high decker bus. Sectional view from the front of the bus State where the chain or toothed belt drive lifting device (elevator) is lowered to the road surface. Cross-sectional view from the side of the bus State where the floor of the lifting device (elevator) is in contact with the ground with a chain or toothed belt drive. Cross-sectional view from the side of the bus State where the lifting device floor is raised to the bus passage floor by chain or toothed belt drive. Sectional view from the front of the bus The floor of the elevator room (elevator) on the sliding trunk floor rises to the floor of the bus seat and the floor of the trunk room is pulled out. Structural diagram of the sliding trunk floor. Chain composition Drive mechanism diagram of chain or toothed belt Cross-sectional view from the bus ruled surface Screw screw jack type with the lifting device floor lowered to the trunk floor of the bus Cross-sectional view from the bus ruled surface The screw bolt jack type lift device floor surface is raised to the bus seat floor surface Sectional view of the floor of a trunk room in a fixed lifting device (elevator) State where the floor of the elevator floor is lowered to the bus trunk floor with the fixed floor of the bus trunk Drawing with the trap board pulled out from the floor of the fixed bath trunk room Screw bolt jack type elevator wall plate, elevator floor, screw jack structure view from above Development view of screw bolt jack type elevator wall board and elevator floor

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting device main body 2 Bus passenger seat floor surface 3 Bus interior passage floor surface 4 Folding / sliding type seat 5 Lifting device use passenger entrance door 6 Lifting device entrance / exit bus side opening 7 Lifting device floor board 8 Wheelchair 9 Bus floor trunk room 10 Lifting Device movable side wall plate 11 Lifting device entrance door inner wall plate 12 Lifting device inner surface fixed wall plate 13 Toothed pulley or sprocket (for driving)
14 Idle pulley 15 Lifting device Side wall plate for lifting and chain or toothed belt 16 Trunk room floor under bath floor 17 Chain or toothed belt guide and trunk side wall plate 18 Sliding trunk floor plate 19 Sliding trunk floor plate moving bearing 20 Air tube (Dust-proof / waterproof / floor fixed)
21 Rail 22 Roller chain 23 Plate (attachment) lifting device inner wall plate 24 Traveling screw jack 25 Wire rope 26 Pulley 27 Trapping plate 28 Lifting device floor wire mounting bracket 29 Traveling road surface 30 Bus side body / side window 31 Bus side window frame 32 Carers / Passengers 33 Lifting Equipment 34 Sliding Trunk Floor Storage Cover 35 Sidewalk / Bus Stop Platform

Claims (3)

The lifting device floor plate is suspended using a toothed belt that also serves as a side wall plate or a chain fixed to the plate, and the toothed belt or the chain is wound up by a pulley or sprocket 13 installed on the floor of the bus. A lifting device that lifts and lowers a floor plate and a chain with a toothed belt that also serves as the side wall plate or the plate is moved equally with the floor plate and functions as a wall plate on the side surface of the lifting device. By rotating a toothed pulley or sprocket installed on the floor of the bus cabin, the floorboard can be vertically lowered to the underfloor trunk surface 16 of the bus or the road surface of the pedestrian or pedestrian, enabling one-step and non-step boarding. The lifting device according to claim 1, wherein a trapping plate 27 equipped with a trunk floor surface is used. The entrance 6 on the side of the bus takes a height from the lower part of the window frame of the left side body to the lowermost part of the side of the body including the trunk opening under the bus floor, and opens the body to the width of the long side of the floor board and installs in the opening. The door 5 is a dedicated door that opens and closes only when getting on and off , and the floorboard can be lifted and lowered with the door closed.

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