JP3696743B2 - Cab-over type vehicle entry / exit device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is used for automobiles. The present invention is used as an auxiliary device that is particularly convenient for getting on and off a passenger seat of a cab-over type vehicle. The present invention relates to a device suitable for use by women, the elderly and mildly handicapped.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a device used for loading and unloading luggage on a large vehicle, a lifting device in which a table provided at the rear of the vehicle is moved up and down by an electric device is widely known. There is also known an apparatus for storing a stand so that the lifting device does not interfere with the traveling of the vehicle. On the other hand, in order to get on and off persons with disabilities, an electric boarding / alighting device for getting on and off the whole wheelchair is also widely used. An apparatus for storing a step in a storage position so that the step for getting on and off does not become an obstacle during traveling of the vehicle is also widely known.
[0003]
The thing which uses the entrance / exit door of a large vehicle as a slide door is disclosed in, for example, Japanese Utility Model Publication No. 2-37620. This is designed so that the door will not open and cause an accident, and that the clothes of passengers and drivers will not be caught on the sliding part when the sliding door opens and closes. .
[0004]
[Problems to be solved by the invention]
In general, in order for an occupant to get on and off a large cab-over type vehicle, the occupant needs to physically hold a handle provided at the entrance and exit, and lift the body to the occupant seat by the force of the arm. For this purpose, arm strength to support weight, particularly suspension force is required. Further, in order to open the door that opens outward by a hinge and enter the passenger seat from the step provided in the cab, it is necessary to skillfully twist the body according to the movement of the legs and arms.
[0005]
On the other hand, in recent years, there are many drivers who have suffered mild disabilities due to traffic accidents and other causes, resulting in mild disabilities. These people are not able to get in and out of the driver seat of a large vehicle due to minor obstacles, even though they do not have any obstacles to driving a large vehicle both physically and skillfully. For some reason, some people are forced to abandon professions they have experienced.
[0006]
For this reason, the applicant's company that manufactures and sells large vehicles is often requested to provide a simple electric lifting device at the entrance of the driver's seat, which is used when loading and unloading luggage at the rear of the vehicle. It has been. Such a device is inconvenient if the device used for loading / unloading the luggage is simply placed sideways and provided at the passenger seat entrance / exit, so that the width of the vehicle is substantially enlarged. Also, a lifting device that only takes one person may have a simpler structure than that used for loading and unloading luggage. Furthermore, in the case of a cab-over type vehicle, not only the extra protrusions and the like are not obstructed when traveling, but also the raising / lowering step must not be obstructed when the cab tilts.
[0007]
The applicant of the present application has invented a cabover type vehicle entry / exit device for this purpose and has filed a patent application (Japanese Patent Application No. 10-53859, unpublished at the time of filing this application). When the device according to the invention of the prior application was manufactured and the monitor user used it and listened to the opinions, some improvements were requested from the user. Among them, there was a request that the operation should be as simple as possible and that the steps would automatically go up and down with a few operations. There was also a request that the passengers do not need to continue to operate until the lifting device is retracted in the rain or snow.
[0008]
The present invention has been made against such a background, and an object thereof is to provide an electric lifting device for getting on and off a passenger seat of a large cab-over type vehicle. It is an object of the present invention to provide an apparatus that can be used easily and easily by a woman, an elderly person, or a person with a mild disability in an arm or waist and get on and off a cab-over type vehicle without difficulty. An object of the present invention is to provide an electric lifting device that is easy to operate. That is, an object of the present invention is to provide an apparatus in which the operation of the apparatus itself is extremely simple and no operation is forgotten or an operation error does not occur. An object of the present invention is to reduce the number of operations outside a vehicle as much as possible in consideration of use in raining or snowing. An object of this invention is to provide the boarding / alighting apparatus which does not cause any trouble in a running state. An object of this invention is to provide the boarding / alighting apparatus which does not cause any trouble also when performing cab tilt.
[0009]
[Means for Solving the Problems]
The present invention is characterized in that an electric step-up / down mechanism for a driver to get on and off is provided, and the step is raised and lowered by a switch operation in a state where the passenger door is opened. And the passenger who is outside activates this lifting device by opening the passenger door of the passenger seat, and the passenger exits from the passenger seat and closes the passenger door to end the operation of this lifting device. To do.
[0010]
That is, the present invention includes a passenger door provided at a passenger entrance of a passenger seat, a step provided at the passenger door, an electric ascending / descending mechanism provided at the step, and the step provided at the passenger door. A handrail that can be gripped by a person standing on the door, a door switch that detects the open / closed state of the passenger door, an operation switch provided at a position where a person standing on the step can operate, the door switch, and the state of the operation switch And a control circuit for driving and controlling the ascending / descending mechanism. The control circuit is activated when the door switch is displaced from the closed position to the opened position and displaces the step from the storage position to the use position. And means for raising the step from the lowered position in accordance with the operation of the operation switch.
[0011]
A seat switch that detects seating of the passenger seat, and the control circuit shifts the step from the use position to the retracted position when the seat switch indicates seating and the door switch is displaced from opening to closing of the passenger door. The door is a sliding door, and the retracted position is disposed at a position that does not hinder the traveling of the vehicle and does not hinder the cab tilt, and the control circuit is configured to seat the seat switch. The door switch is activated when the door switch is displaced from the closed position to the open position, and the step switch is moved from the retracted position to the used position, and the seat switch is in a seated state. Means for lowering the step from the raised position according to the operation of the operation switch after being displaced to a non-sitting state; and Desirably includes a means for displacing the step in the retracted position when the door switch after reaching the lower position is displaced to the closed from the open of the passenger door.
[0012]
Further, an operation detection switch is provided on at least one of the inside door handle and the outside door handle of the passenger door, and the control circuit is operated by the inside door handle in a state where the seat switch indicates the seating. The control circuit includes a means for prohibiting the operation of displacing the step from the retracted position when the door switch is displaced from closed to open after the outside door handle is operated without being operated. Mechanical means for constraining the passenger door to an open state over an operable period, an obstacle sensor is provided on the lower surface of the step, and the control circuit is configured to detect the obstacle sensor during the period in which the obstacle sensor is sensitive. It is desirable to include means for prohibiting the step-down operation.
[0013]
When boarding, when the passenger door is opened, the door switch is turned on, and the control circuit is activated by an output indicating the opened state of the passenger door. Thus, the storage mechanism is driven to project the step from the storage position to a position where the occupant can stand. Subsequently, the ascending / descending mechanism is driven to lower the step to the use position.
[0014]
When the occupant gets on the step that has been lowered to the use position and operates an operation switch provided at a position where it can be operated while standing on the step, the control circuit drives the ascending / descending mechanism to raise the step. Thereby, the passenger | crew can move to a passenger | crew seat side in the stable state which grasped the handrail.
[0015]
The seat switch is turned on when the occupant is seated on the seat, and the door switch is turned off when the passenger door is closed. The control circuit drives the ascending / descending mechanism and the storage mechanism by the outputs of the seat switch and the door switch to move the step to the storage position, and stops the operation when the step moves to the storage position. Thereby, even if the operation switch is operated in a state where the passenger door is closed, the step moving operation is prohibited and safety is ensured.
[0016]
The entrance door is preferably formed in a sliding manner. The step is stored in the vehicle body so as not to exceed the vehicle width, and is stored in a position that does not hinder the cab tilt. Thus, traveling and maintenance inspection can be performed without being restricted by storing the steps.
[0017]
When getting off the vehicle, if the passenger opens the door while the passenger is seated in the seat, the control circuit is a door switch that indicates that the passenger door is displaced from closed to open while the seat switch is on indicating seating. And the storage mechanism and the ascending / descending mechanism are driven to raise the step from the storage position to the use position.
[0018]
Here, when the occupant gets on the raised step, the seat switch changes from the on state to the off state. When the operation switch is operated to the lowering side in this state, the control circuit drives the ascending / descending mechanism according to the operation signal to move the step from the ascending position to the descending position. When the step reaches the lowered position and the passenger gets out of the step and the passenger door is displaced from open to closed and the door switch is turned off, the control circuit drives the ascending / descending mechanism and the storage mechanism by the off signal to store the step in the storage position. Move to. The boarding / alighting operation is stopped when the step is accommodated in the storage position.
[0019]
If the passenger sits on the seat, the entrance / exit door is closed and the step is stored, and the entrance / exit door is opened from outside the vehicle, the seat switch is on and the inside door handle is not operated. In addition, since the entrance door is displaced from closed to open by operating the outside door handle, the control circuit assumes that the entrance door has not been opened by the intention of the occupant seated in the seat. Displacement is prohibited. As a result, even if the passenger gets into the passenger door from outside the vehicle while the occupant is in the vehicle, the steps are not lowered and the safety is maintained.
[0020]
When an occupant gets in, the correct operation is to move to the occupant seat when the step reaches the ascending end, perform the storing operation of the step, and then close the passenger door, but the step is protruding There is a possibility that an operation of closing the passenger door is sometimes performed. When such an operation is performed, the passenger door may interfere with the step and break. In order to avoid such an erroneous operation, the entrance / exit door is restrained to the open state by the mechanical means during the period when the entrance / exit door is opened and the control circuit is operable.
[0021]
As a result, even if the operation of closing the entrance / exit door is performed with the step protruding, the entrance / exit door is restrained mechanically in the open state. It can be avoided.
[0022]
When a step descent operation is performed, if there is an obstacle such as a convex portion on the road surface or a foreign object at the step descent position, the obstacle sensor detects the state. The control circuit prohibits the step-down operation while the obstacle sensor is sensitive to the convex portion or the foreign matter. When the occupant notices the state and the operation switch is operated to the ascending side, the control circuit drives the ascending / descending mechanism to raise the step. This allows the occupant to move the vehicle to a position free of obstacles.
[0023]
As described above, according to the present invention, it is possible to get on or get off with a switch operation that only raises or lowers the step, and accordingly, the number of operations outside the vehicle is reduced, and the operation time during rain and snow falls is shortened. It is possible to eliminate forgetting operations and operating errors. In addition, since it is easy to operate and can be used easily without taking an unreasonable posture such as twisting the body when getting on and off, it is not difficult even for women, elderly people or passengers with mild disabilities in the arms and waist You can get on and off the vehicle. In addition, this structure can be configured so as not to cause trouble during traveling or cab tilting.
[0024]
In the configuration of the invention of the prior application filed by the applicant of the present invention (Japanese Patent Application No. 10-53859, unpublished at the time of filing this application), it is provided at a position where it can be operated from outside the vehicle with the passenger door open, The first switch that is operated when storing the step after getting out and getting off, the second switch that is operated when raising or lowering the step while the person getting on and off gets on, and sitting on the passenger seat Three types of switches are provided: a third switch operated when the step is lowered or extended in the above state. On the other hand, in the configuration of the present application, only one operation switch operated by one's own will is provided when raising or lowering a step, and all related operations are automatically performed. Therefore, complexity is eliminated and the possibility of erroneous operation can be eliminated.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
[0026]
【Example】
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial perspective view showing a mechanical configuration of a main part of an embodiment of the present invention, FIG. 2 is a diagram showing an arrangement position of an operation switch in the embodiment of the present invention, and FIG. 3 is an electrical view of an essential part of the embodiment of the present invention. It is a block diagram which shows a structure.
[0027]
The embodiment of the present invention includes an entrance / exit door 2 provided at the entrance / exit of the passenger seat 1, a step 3 provided at the entrance / exit, an electric ascending / descending mechanism 4 provided at the step 3, and an entrance / exit Handrails 5 and 55 that can be gripped by a person standing at Step 3; a door switch 10 that detects the open / closed state of the passenger door 2; and an operation switch 11 provided at a position where a person standing at Step 3 can operate; A seat switch 14 that detects the seating of the occupant seat 1 and a control circuit 6 that takes in the states of the door switch 10, the operation switch 11, and the seat switch 14 and drives and controls the ascending / descending mechanism 4 are provided.
[0028]
The control circuit 6 starts when the door switch 10 is displaced from closing to opening of the passenger door 2 and lowers step 3 according to the operation of the operation switch 11 and means for displacing step 3 from the storage position to the use position. Means for raising from the position, means for displacing step 3 from the use position to the retracted position when the seat switch 14 detects the seating, the seat switch 14 indicates the seating, and the door switch 10 is changed from opening to closing of the passenger door 2 When the door switch 10 is displaced from closing to opening of the entrance door 2 with the seat switch 14 indicating the seating, and means for suspending the operation by displacing the step 3 from the use position to the storage position when displaced. Means for displacing the step 3 from the retracted position to the use position and the seat switch 14 indicating the seating state. Means for lowering step 3 from the raised position according to the operation of the operation switch 11 after being displaced into the state, and step when the door switch 10 is displaced from opening to closing after step 3 reaches the lowered position. And means for suspending the operation by displacing 3 to the storage position.
[0029]
Also, an operation detection switch 20 is provided on the inside door handle of the passenger door, and the outside door handle is operated without operating the inside door handle in the state where the seat switch 14 is seated. When the door switch 10 is displaced from closing to opening of the passenger door 2 after the operation of is performed, means for prohibiting the operation of displacing step 3 from the storage position is included.
[0030]
The operation detection switch 20 is provided on the outside door handle side, and the inside door handle can be configured without the detection switch, or can be provided on both the inside and outside. When two operation detection switches are provided, the detection of opening / closing operation of the passenger door 2 from the outside of the vehicle and the detection of opening / closing operation of the passenger door 2 from the inside of the vehicle can be clearly performed separately.
[0031]
In addition, an electric storage mechanism 7 is provided that displaces step 3 into a storage position that does not hinder the running of the vehicle and a use position where a person can stand in step 3, and the control circuit 6 uses step 3. Means are included for enabling the ascending / descending mechanism 4 only when in position.
[0032]
The storage position is provided as a mechanical means for restraining the passenger door 2 in an open state during a period in which the control circuit 6 is operable and is provided at a position that does not hinder the traveling of the vehicle and the cab tilt. A lock actuator 40 is provided. Further, an obstacle sensor 36 is provided on the lower surface of the step, and the control circuit 6 includes means for prohibiting the descent operation in step 3 during a period when the obstacle sensor 36 is sensitive.
[0033]
FIG. 4 is a front view showing the external shape of the operation switch in the embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line AA of the operation switch in the embodiment of the present invention shown in FIG.
[0034]
The operation switch 11 includes an upper button 51, a lower button 52, and a lighting display unit 53. When the upper button 51 is operated, the control circuit 6 drives the ascending / descending mechanism 4 to ascend step 3 at the descending position. Move to position. Also, when the lower button 52 is operated, the control circuit 6 drives the ascending / descending mechanism 4 to move the step 3 at the ascending position to the descending position. The lighting display unit 53 is lit when the passenger door 2 is opened and displays that it is in an open state.
[0035]
FIG. 6 is a front view showing the mounting state of the operation switch in the embodiment of the present invention, and FIG. 7 is a cross-sectional view of the operation switch in the embodiment of the present invention taken along line BB shown in FIG.
[0036]
The operation switch 11 is attached to the outer end surface of the instrument panel 38, and is disposed at a position where it can be operated with the thumb of the hand gripping the grip 37 disposed at a position where a person standing at Step 3 can grasp it. A protective cover 39 is provided at the outer edge portion of the operation switch 11 to prevent the fingers gripping the grip 37 from inadvertently contacting.
[0037]
A part of the side surface of the protective cover 39 is fixed to the core metal 37 a of the grip 37 by welding. The operation switch 11 is attached to the protective cover 39, and the outer periphery thereof is covered with the switch cover 54. Since the operation switch 11 is operated by consciously putting the thumb into the protective cover 39, it is possible to prevent the finger from touching the operation switch 11 inadvertently due to a behavior other than the switch operation.
[0038]
As shown in FIG. 3, the ascending / descending mechanism 4 in the present embodiment is switched in accordance with the control of the control circuit 6 as shown in FIG. 3. The forward / reverse relay 8a, the upper limit switch 15 which is turned off when step 3 reaches the rising end, and stops driving when the lifting motor 8 is stopped, and is turned off when step 3 reaches the lowering end. The lower limit switch 16 that stops driving, and a first state that is turned on when step 3 reaches the storage position from the ascending end side and that is turned off when a signal indicating the position is sent to the control circuit 6 and passed. When the position switch 17a and step 3 reach the retracted position from the descending end side, they are turned on and a signal indicating the position is sent to the control circuit 6 and passed. A second position switch 17b to be turned off, and the buzzer 21 to notify a user that the apparatus is in operation and sounded when lifting step 3 provided in the.
[0039]
The storage mechanism 7 includes, as an electrical configuration, a storage motor 9 that performs projection and storage in step 3, a forward / reverse relay 9 a that switches the rotation direction of the storage motor 9 according to control of the control circuit 6, and step 3. A limit switch 18 that turns off when the storage motor 9 stops driving, and a storage limit switch 19 that turns off when step 3 is stored and stops driving the storage motor 9.
[0040]
The control circuit 6 includes a computer and an interface circuit corresponding to a plurality of switches and relays. Software for controlling the operation described below is installed in the computer. This software can be created by a person having ordinary knowledge by the following operation explanation, and detailed disclosure thereof is omitted.
[0041]
Next, the operation of the embodiment of the present invention thus configured will be described.
[0042]
First, the operation during boarding will be described with reference to FIG. When the passenger door 2 shown in FIG. 9 is opened from the closed state, the door switch 10 is turned on. The control circuit 6 is activated by this ON signal and restrains the passenger door 2. Thereby, when the entrance / exit door 2 is in the open state, the entrance / exit door 2 is not closed unless step 3 is stored, and it is avoided that the entrance / exit door 2 interferes with step 3 protruding. Further, when the door switch 10 is turned on, the lighting display portion 53 of the operation switch 11 is turned on to display that the passenger door 2 is in an open state. Here, the control circuit 6 switches the forward / reverse relay 9a to the side where the storage motor 9 projects step 3 and drives the storage motor 9.
[0043]
When step 3 protrudes to the use position, the protrusion limit switch 18 is turned off, and the control circuit 6 stops the drive of the storage motor 9 by this off signal, and the forward / reverse relay 8a is switched to the side where step 3 is lowered. The lift motor 8 is driven. When step 3 reaches the lowered position by driving the lifting motor 8, the lower limit switch 16 is turned off, and the control circuit 6 stops driving the lifting motor 8 by this signal. FIG. 10 shows the position of step 3 at that time. The protrusion operation and the descent operation in Step 3 can be performed in parallel at the same time.
[0044]
When the occupant operates the step 3 and the upper button 51 of the operation switch 11 is operated, the control circuit 6 switches the forward / reverse relay 8a to the side that raises the step 3 and drives the lifting motor 8. Step 3 is lifted by driving the lifting motor 8. The first position switch 17a is temporarily turned on when the step 3 is raised, and the second position switch 17b is temporarily turned on at a short time interval, but the door switch 10 is turned on. Since the seat switch 14 is in the OFF state and the storage condition of step 3 is not satisfied, the control circuit 6 ignores this and raises step 3.
[0045]
When step 3 reaches the ascending position, the upper limit switch 15 is turned off, and the control circuit 6 stops driving the elevating motor 8 by this off signal. FIG. 11 shows the position of step 3 at that time.
[0046]
When the occupant moves to the occupant seat 1 from step 3 that has reached the raised position and is seated on the occupant seat 1, the seat switch 14 is turned on. With this output, the control circuit 6 releases the restriction of the passenger door and invalidates the operation switch 11. Here, when the passenger door 2 is closed by the inside door handle, the operation detection switch 20 is temporarily turned on, and the control circuit 6 switches the forward / reverse relay 8a to the side where the step 3 is lowered by this signal. The motor 8 is driven.
[0047]
When step 3 is lowered by the driving of the lift motor 8 and reaches the storage position, the second position switch 17b is temporarily turned on, and then the first position switch 17a is temporarily turned on. At this time, since the door switch 10 and the seat switch 14 are in the ON state and the condition for storing Step 3 is satisfied, the control circuit 6 stops driving the lifting motor 8 and the forward / reverse relay 9a is set to Step 3 The switching storage motor 9 is driven to the side storing the.
[0048]
By driving the storage motor 9, step 3 is pulled into the storage position as shown in FIG. When step 3 reaches the storage position, the storage limit switch 19 is turned off. The control circuit 6 stops the driving of the storage motor 9 by this off signal. When the retract limit switch 19 is turned off, the control circuit 6 stops its operation. Therefore, in the state where the passenger door 2 is closed, even if the operation switch 11 is operated, the moving operation of Step 3 is not performed. At this time, the lighting display portion 53 of the operation switch 11 is turned off.
[0049]
When an occupant is seated in the occupant seat 1 and the entrance / exit door 2 is closed by the inside door handle, the entrance / exit door 2 may be opened from outside the vehicle. At this time, since the seat switch 14 is in the on state and the door switch 10 is in the off state, even when the door switch 10 is changed to the on signal, the passenger door 2 is not opened by the occupant's intention. As a result, the operation pause state of step 3 at the storage position is continued. As a result, even if the passenger door 2 is suddenly opened from outside the vehicle, the descent in step 3 is suppressed and a safe state is maintained.
[0050]
Next, the operation when getting off will be described with reference to FIG. When the passenger sits on the passenger seat 1 and manually opens the passenger door 2 fully, the door switch 10 is turned on and the operation detection switch 20 is temporarily turned on. As a result, the control circuit 6 is activated to restrain the passenger door 2. At this time, the lighting display section 53 of the operation switch 11 is lit.
[0051]
Here, the control circuit 6 drives the switching storage motor 9 by switching the forward / reverse relay 9a to the side where the step 3 is pushed out. Step 3 is pushed out by the drive of the storage motor 9. When step 3 reaches the protruding position, the protruding limit switch 18 is turned off. The control circuit 6 stops the drive of the storage motor 9 by this OFF signal, switches the forward / reverse relay 8a to the side where the step 3 is raised, and drives the raising / lowering motor 8. The protrusion operation and the ascending operation in Step 3 can be performed in parallel at the same time.
[0052]
When the lift motor 8 is driven, the step 3 is raised, and when the lift position is reached, the upper limit switch 15 is turned off and the drive of the lift motor 8 is stopped. When the occupant gets on the step 3, the seat switch 14 is turned off, and when the lower button 52 of the operation switch 11 is operated by the occupant, the control circuit 6 switches the forward / reverse relay 8a to the side where the step 3 descends. Is driven and step 3 is lowered.
[0053]
When step 3 descends, the second position switch 17b is temporarily turned on, and then the first position switch 17b is temporarily turned on, but the entrance / exit door 2 is opened and the door Since the switch 10 is in the ON state, the storage condition in step 3 is not satisfied, so the control circuit 6 ignores this and drops step 3. When step 3 reaches the lowered position, the lower limit switch 16 is turned off, and the control circuit 6 stops driving of the lifting motor 8 by this off signal and releases the restraint of the passenger door 2.
[0054]
When the passenger gets off the step 3 and closes the passenger door 2 by the outside door switch, the door switch 10 is turned off. In response to this signal, the control circuit 6 switches the forward / reverse relay 8a to the side where the step 3 is raised and drives the lifting motor 8. When the lift motor 8 is driven, the step 3 is raised, and when the retracted position is reached, the first position switch 17a is temporarily turned on, and then the second position switch 17b is temporarily turned off. .
[0055]
At this time, since the door switch 10 is in the OFF state and the storage condition of Step 3 is satisfied, the control circuit 6 stops driving the lifting motor 8 and switches the forward / reverse relay 9a to the side where Step 3 is stored. The storage motor 9 is driven. When the storage motor 9 is driven, step 3 is pulled in. When the storage motor 9 comes into contact with the storage limit switch 19 and is turned off, the drive of the storage motor 9 is stopped. Thereby, step 3 is stored in the vehicle body as shown in FIG. The control circuit 6 ends its operation. At this time, the lighting display portion 53 of the operation switch 11 is turned off.
[0056]
At the time of ascending or descending in Step 3 and at the time of protruding or storing, the buzzer 21 is blown to notify that it is in operation.
[0057]
When step 3 is lowered and there is an obstacle such as a convex portion of the road surface or a foreign object under the step 3, the obstacle sensor 36 comes into contact with the obstacle and an ON signal is sent to the control circuit 6. . When the control circuit 6 receives the output of the obstacle sensor 36, the control circuit 6 immediately prohibits the descent operation in step 3. In this state, when the operation switch 11 is operated to the up side, the control circuit 6 drives the elevating motor 8 to raise step 3. Thereby, the vehicle can be stopped at a position away from the obstacle.
[0058]
In this embodiment, an example in which both the ascending / descending mechanism 4 and the storage mechanism 7 are provided has been described. However, the structure in which the storage mechanism 7 is not provided in the case of a vehicle model that does not cause trouble in traveling even if the storage in step 3 is not performed. Can be.
[0059]
Moreover, although the sliding door was demonstrated to the example in the present Example, it can mount also in the vehicle to which the passenger door which opens outside with a hinge is attached, and the same effect can be acquired.
[0060]
【The invention's effect】
As described above, according to the present invention, it is possible to get on or get off with a switch operation that only raises or lowers a step, so that the number of operations outside the vehicle is reduced and the operation time during rain or snow falls. It can be shortened, and it is possible to eliminate forgotten operations and operational errors. In addition, since it is easy to operate and can be used easily without taking an unreasonable posture such as twisting the body when getting on and off, even a driver with a slight disability in the arm or waist can get on and off the vehicle without difficulty be able to. This structure can be realized so as not to hinder the running or cab tilting.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing a mechanical configuration of a main part of an embodiment of the present invention.
FIG. 2 is a diagram showing an arrangement position of operation switches in the embodiment of the present invention.
FIG. 3 is a block diagram showing an electrical configuration of a main part of the embodiment of the present invention.
FIG. 4 is a front view showing an external shape of an operation switch according to an embodiment of the present invention.
5 is a cross-sectional view taken along line AA of the operation switch in the embodiment of the present invention shown in FIG.
FIG. 6 is a front view showing a mounting state of the operation switch in the embodiment of the present invention.
7 is a cross-sectional view of the operation switch in the embodiment of the present invention, taken along the line BB shown in FIG.
FIG. 8 is a diagram for explaining the flow of operations and operations when riding in the embodiment of the present invention.
FIG. 9 is a view showing a state in which the passenger door is closed in the embodiment of the present invention.
FIG. 10 is a diagram showing a state in which a step is lowered in the embodiment of the present invention.
FIG. 11 is a diagram showing a state in which the step is raised in the embodiment of the present invention.
FIG. 12 is a diagram showing a flow of operations and actions when getting off in the embodiment of the present invention.
[Explanation of symbols]
1 Crew seat
2 Entrance door
3 steps
4 Ascent and descent mechanism
5,55 handrail
6 Control circuit
7 Storage mechanism
8 Lifting motor
8a, 9a Forward / reverse relay
9 Retractable motor
10 Door switch
11 Operation switch
14 Seat switch
15 Upper limit switch
16 Lower limit switch
17a First position switch
17b Second position switch
18 Projection limit switch
19 Retraction limit switch
20 Operation detection switch
21 Buzzer
36 Obstacle Sensor
37 grip
37a cored bar
38 Instrument panel
39 Protective cover
40 Door lock actuator
51 Up button
52 Down button
53 Lighting indicator
54 Switch cover

Claims (6)

An entrance / exit door provided at the entrance / exit of the passenger seat, a step provided at the entrance / exit, an electric ascending / descending mechanism provided at the step, and a person standing at the step provided at the entrance / exit A door switch that detects the open / closed state of the passenger door, an operation switch provided at a position that can be operated by a person standing at the step, a seat switch that detects seating of the passenger seat, and the door switch A control circuit that takes in the state of the operation switch and drives and controls the ascending / descending mechanism,
The operation switch is provided at a position where an operator can operate the thumb with the thumb while holding the rail.
The control circuit is activated when it is detected that the door switch is displaced from closing to opening of the passenger door, and the step switch is moved from the retracted position to the lowered position. Means for enabling the operation of the operation switch when detecting that it has been displaced from closed to open, and raising the step from the lowered position according to the operation of the operation switch; and the seat switch indicates seating and the door switch is Means for displacing the step from the raised position to the retracted position when the passenger door is displaced from open to closed; and the door switch is displaced from closed to open while the seat switch is seated. Means for activating sometimes and displacing the step from the retracted position to the raised position, and the seat switch being seated Means for lowering the step from the raised position in accordance with the operation of the operation switch after being displaced from a seated state to a seated state, and the door switch is displaced from opening to closing of the passenger door after the step reaches the lowered position. And a means for displacing the step to a storage position when the cab over type vehicle boarding / exiting device is provided. The cab over type vehicle entry / exit device according to claim 1 , wherein the entry / exit door is a sliding door . The cabover type vehicle entry / exit device according to claim 1 , wherein the storage position is a position that does not hinder the traveling of the vehicle and does not hinder the cab tilt . Apparatus for elevating a cab-over type vehicle according to claim 1, further comprising a mechanical means for restraining the passenger door for a period in which the control circuit is in the operational open. The cabover type vehicle boarding / alighting device according to claim 1 , wherein an obstacle sensor is provided on a lower surface of the step, and the control circuit includes means for prohibiting the descent operation of the step during a period when the obstacle sensor is sensitive . An entrance / exit door provided at the entrance / exit of the passenger seat, a step provided at the entrance / exit, an electric ascending / descending mechanism provided at the step, and a person standing at the step provided at the entrance / exit A door switch that detects the open / closed state of the passenger door, an operation switch provided at a position that can be operated by a person standing at the step, the door switch, and the state of the operation switch. A control circuit for driving and controlling, and a seat switch for detecting the seating of the crew seat ,
The control circuit includes means for displacing the step from the use position to the retracted position when the seat switch is seated and the door switch is displaced from opening to closing of the passenger door, and the door switch is connected to the passenger door. Means for activating when moving from closed to open and displacing the step from the retracted position to the lowered position; means for raising the step from the lowered position in accordance with the operation of the operation switch; and the seat switch indicates seating The door switch is activated when the door switch is displaced from the closed position to the open position, and the step is moved from the retracted position to the raised position. Means for lowering the step from the raised position according to the operation of the operation switch after being displaced The door switch from serial steps reaches the lowered position and means for displacing the storage position of the step when displaced to the closed from the open of the passenger door,
An operation detection switch is provided on at least one of the inside door handle and the outside door handle of the passenger door,
The control circuit opens the door switch from the closing of the passenger door without operating the inside door handle or after operating the outside door handle in a state in which the seat switch is seated. A cab-over type vehicle boarding / exiting device comprising means for inhibiting the operation of displacing the step from the storage position when the step is displaced.

Images