JP2022034467A - Guide rail vehicle and guide device for guide rail vehicle - Google Patents

Abstract

To reduce construction cost of a guide rail.SOLUTION: Since a grounding wheel 30 arranged to be protruded downward from a guide wheel 20 is included, the grounding wheel 30 is grounded on a bottom surface 101a of a guide rail 101. Specifically, the grounding wheel 30 is rolled while being grounded on the bottom surface 101a of the guide rail 101 so that a distance between the bottom surface 101a of the guide rail 101 and the guide wheel 20 can always be minimized during the traveling of a vehicle 1. Accordingly, a sidewall 101b of the guide rail 101 can be formed lower for it so that construction cost of the guide rail 101 can be reduced.SELECTED DRAWING: Figure 1

Description

The present invention relates to a guide rail type vehicle and a guide device for a guide rail type vehicle, and in particular, a guide rail type vehicle and a guide that can suppress contact of a guide wheel with the bottom surface of the guide rail and reduce the construction cost of the guide rail. Regarding the guide device for rail type vehicles.

A guide rail type vehicle is known in which a traveling track is guided by a guide rail configured as a groove or a rail. For example, Patent Document 1 describes a protective wheel (guide wheel) from the horizontal direction on the side surface of a groove-shaped protective track (side wall of a guide rail) recessed in the road surface and the side surface of a rail-shaped protective track erected on the road surface. ) Is brought into contact with the guide rail type vehicle in which the traveling track is guided.

Japanese Unexamined Patent Publication No. 2006-306334 (for example, paragraphs 0041, FIGS. 1 and 2).

Here, in the above-mentioned conventional technique, in order to prevent the guide wheel from coming off the guide wheel, it is necessary to position the upper end of the side wall of the guide wheel above the guide wheel. Further, in order to avoid contact between the guide wheel and the bottom surface of the guide rail, it is necessary to dispose the guide wheel above the bottom surface of the guide rail at a predetermined distance. Must be formed high. Therefore, there is a problem that the construction cost of the guide rail increases.

Further, if the guide wheel vibrates more than the above-mentioned distance for some reason, there is a problem that the guide wheel may come into contact with the bottom surface of the guide rail.

The present invention has been made to solve the above-mentioned problems, and is a guide rail type vehicle and a guide rail that can prevent the guide wheel from coming into contact with the bottom surface of the guide rail and reduce the construction cost of the guide rail. It is intended to provide a guide device for a type vehicle.

In order to achieve this object, the guide rail type vehicle of the present invention includes a vehicle body, a plurality of traveling wheels that support the vehicle body and run the vehicle body, and a side wall of the guide rail while directing the axle in the vertical direction of the vehicle body. It is provided with a guide wheel that is in contact with the guide wheel, and the axle is directed in a direction orthogonal to the axle of the guide wheel and orthogonal to the traveling direction of the vehicle body and protrudes downward from the guide wheel. The ground wheel is provided, and the ground wheel is arranged on the inner peripheral side of the guide wheel.

According to the guide rail type vehicle according to claim 1 and the guide rail type vehicle guide device according to claim 7, the axle is directed in a direction orthogonal to the axle of the guide wheel and orthogonal to the traveling direction of the vehicle body. It is provided with a ground wheel that is arranged so as to project below the guide wheel. Therefore, even if the guide wheel vibrates more than the distance between the bottom surface of the guide rail and the guide wheel, the ground wheel can be grounded on the bottom surface of the guide rail, so that the guide wheel comes into contact with the bottom surface of the guide rail. It has the effect of being able to suppress it.

In addition, by rolling the grounding wheel while it is in contact with the bottom of the guide rail, the distance between the bottom of the guide rail and the guide wheel when the vehicle is running can be minimized. The side wall of the can be formed low. Therefore, there is an effect that the construction cost of the guide rail can be reduced.

Further, since the ground contact wheel is arranged on the inner peripheral side of the guide wheel, it is not necessary to provide a space for arranging the ground contact wheel around the guide wheel. Therefore, for example, there is an effect that other members can be arranged around the guide wheel and the size of the vehicle can be reduced.

According to the guide rail type vehicle according to claim 2 and the guide rail type vehicle guide device according to claim 8, the ground contact is such that the axle is directed in a direction orthogonal to the axle of the guide wheel and orthogonal to the traveling direction of the vehicle body. Equipped with wheels. Therefore, even if the guide wheel vibrates more than the distance between the bottom surface of the guide rail and the guide wheel, the ground wheel can be grounded on the bottom surface of the guide rail (or the road surface on which the traveling wheel rolls). It has the effect of suppressing the wheels from coming into contact with the bottom surface of the guide rail.

In addition, by rolling the grounding wheel while it is in contact with the bottom surface (road surface) of the guide rail, the distance between the bottom surface of the guide rail and the guide wheel when the vehicle is running can be minimized. , The side wall of the guide rail can be formed low. Therefore, there is an effect that the construction cost of the guide rail can be reduced.

Further, a double-acting hydraulic cylinder configured as a driving means for connecting the vehicle body and the holding member, a first oil passage for supplying hydraulic oil to the rod side chamber of the hydraulic cylinder, and hydraulic oil to the head side chamber of the hydraulic cylinder. It is provided with a second oil passage to be supplied, a communication oil passage connecting the second oil passage and the first oil passage, and an on-off valve for opening and closing the communication state of the communication oil passage. Therefore, the hydraulic cylinder expands and contracts by supplying hydraulic oil to the rod side chamber or the head side chamber with the on-off valve closed.

That is, by supplying hydraulic oil to the head side chamber with the on-off valve closed, the hydraulic cylinder extends and the grounding wheel touches the bottom surface (road surface) of the guide rail. When the on-off valve is opened in this state, the rod side chamber and the head side chamber are communicated via the first oil passage, the second oil passage and the communicating oil passage, but the rod side chamber is more than the head side chamber due to the cross-sectional area of the piston rod. Since the pressure receiving area on the side is small, a force for extending the piston rod can be generated by the internal pressure of the head side chamber. As a result, a force in the direction of pressing the ground wheel against the bottom surface (road surface) of the guide pavement can always be generated, so that the ground wheel can be reliably followed by the bottom surface (road surface) of the guide pavement. Therefore, there is an effect that the guide wheel can be more effectively prevented from coming off from the side wall of the guide rail.

According to the guide rail type vehicle according to claim 3, in addition to the effect of the guide rail type vehicle according to claim 1 or 2, the holding member for holding the ground wheel and the guide wheel and the holding member thereof are connected to the vehicle body. Since the connecting member displaces the holding member in the vertical direction of the vehicle body in the direction away from the vehicle body and in the direction close to the vehicle body, the grounding wheel is always grounded on the bottom surface of the guide rail. It can be rolled in a state of being. Therefore, since the ground wheel can be surely made to follow the bottom surface of the guide rail, there is an effect that the guide wheel can be prevented from coming off from the side wall of the guide rail.

According to the guide rail type vehicle according to claim 4, in addition to the effect of the guide rail type vehicle according to claim 2, a pressure accumulator provided in the second oil passage on the hydraulic cylinder side of the communication oil passage is provided. Therefore, by supplying hydraulic oil to the head side chamber with the on-off valve closed (extending the hydraulic cylinder and pressing the ground wheel against the bottom of the guide rail), the hydraulic oil passing through the second oil passage is the accumulator. Accumulates (accumulates pressure) in.

As a result, for example, when the piston rod is shortened by the force of pushing the ground wheel upward due to the unevenness of the bottom surface of the guide rail, the hydraulic oil in the head side chamber is accumulated (accumulated) in the accumulator. On the other hand, when the pushing force is relaxed, the hydraulic oil accumulated in the accumulator is supplied to the head side chamber, the piston rod extends, and the ground wheel is pressed against the bottom surface of the guide rail. Therefore, even when the bottom surface of the guide rail is uneven, the pressure accumulated in the accumulator makes it possible to more reliably follow the ground contact wheel to the bottom surface of the guide rail. Therefore, there is an effect that the guide wheel can be more effectively prevented from coming off from the side wall of the guide rail.

According to the guide rail type vehicle according to claim 5, in addition to the effect of the guide rail type vehicle according to any one of claims 1 to 4, a plurality of ground wheels are arranged in the front-rear direction of the vehicle body, for example. , A recess extending in the left-right direction of the vehicle body is formed on the bottom surface of the guide rail, and even if the ground wheel on the front side tries to fit into the recess, the ground wheel on the rear side touches the bottom surface of the guide rail. The downward displacement of the holding member is restricted. Therefore, even if a recess extending in the left-right direction of the vehicle body is formed on the bottom surface of the guide rail, it is possible to prevent the ground wheel from falling into the recess and the guide wheel from coming into contact with the bottom surface of the guide rail. There is.

According to the guide rail type vehicle according to claim 6, in addition to the effect of the guide rail type vehicle according to claim 5, the following effects are obtained. Since the plurality of grounding wheels are composed of a first grounding wheel and a second grounding wheel whose lower end is located above the lower end of the first grounding wheel, if the bottom surface of the guide rail is flat, The first ground contact wheel can be grounded to the bottom surface of the guide rail, and the second ground contact wheel can be separated from the bottom surface of the guide rail. That is, the second ground contact wheel is configured as an auxiliary wheel for preventing the guide wheel from coming into contact with the bottom surface or the convex portion of the guide rail when the concave portion or the convex portion is formed on the bottom surface of the guide rail. Wheel. Therefore, since it is possible to suppress the second ground contact wheel from always touching the bottom surface of the guide rail, there is an effect that the wear of the second ground contact wheel can be suppressed and the deterioration of the second ground contact wheel can be suppressed.

(A) is a side view of the vehicle according to the embodiment of the present invention, and (b) is a partially enlarged view of the vehicle in the direction of arrow Ib of FIG. 1 (a). (A) is a partially enlarged view of the vehicle in the direction of arrow IIa of FIG. 1 (b), and (b) is a partially enlarged sectional view taken along line IIb-IIb of FIG. 2 (a). (A) is a cross-sectional view taken along the line IIIa-IIIa of FIG. 2A, and FIG. 2B is a schematic view showing a state in which the guide device follows along a side wall formed of a curved surface. It is a schematic diagram which showed the hydraulic circuit of a vehicle. It is the schematic which showed the hydraulic circuit in the case of extending a hydraulic cylinder. It is a schematic diagram which showed the hydraulic circuit when the ground wheel is pressed against the bottom surface of a guide rail by the internal pressure of a pressure accumulator. It is the schematic which showed the hydraulic circuit when the hydraulic cylinder shortened by the force which pushes up the ground wheel upward from the state of FIG. It is a schematic diagram which showed the hydraulic circuit when the internal pressure of a hydraulic cylinder is released. It is a schematic diagram which showed the hydraulic circuit when the hydraulic cylinder is shortened in the state where the internal pressure is released. It is the schematic which showed the hydraulic circuit in the case of shortening a hydraulic cylinder. It is the schematic which showed the hydraulic circuit in the case which keeps the state which shortened the hydraulic cylinder.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, the overall configuration of the vehicle 1 will be described with reference to FIG. 1 (a) is a side view of the vehicle 1 according to the embodiment of the present invention, and FIG. 1 (b) is a partially enlarged view of the vehicle 1 in the direction of arrow Ib of FIG. 1 (a). In addition, in FIG. 1, in order to simplify the drawing, a part of the vehicle 1 is omitted and schematically shown. Further, the arrows UD, LR, and FB in FIG. 1 indicate the vertical direction, the horizontal direction, and the front-rear direction of the vehicle 1 (guide device 10), respectively.

As shown in FIG. 1, the vehicle 1 is formed by the vehicle body 2, a plurality of traveling wheels 3 that support the vehicle body 2 and run the vehicle body 2, and projecting downward from the vehicle body 2 and along the guide rail 101. It is provided with a guide device 10 for guiding the traveling of the vehicle 1, and is configured as a guide rail type vehicle for transporting passengers and cargo.

The vehicle 1 includes a drive device (not shown) for rolling the traveling wheels 3, and travels on the road surface 100 by the rolling of the traveling wheels 3. A guide rail 101 for guiding the traveling of the vehicle 1 is formed on the road surface 100. The guide rail 101 includes a bottom surface 101a and a side wall 101b erected from the bottom surface 101a, and is formed as a groove having a rectangular cross section recessed in the road surface 100.

The guide device 10 has a guide wheel 20 that directs the axle in the vertical direction of the vehicle body 2 and a ground contact that directs the axle in a direction orthogonal to the axle of the guide wheel 20 and perpendicular to the traveling direction of the vehicle body 2 (vehicle 1). A pair of wheels 30, a holding member 40 for holding the guide wheels 20 and the ground wheels 30, and a connecting member 50 for connecting the holding member 40 to the vehicle body 2 is provided in the front-rear direction of the vehicle body 2. ..

The guide wheel 20 is a wheel that rolls along the side wall 101b, and the vehicle 1 moves forward or backward while the guide wheel 20 is in contact with the side wall 101b, so that the guide rail 3 is not steered. The vehicle 1 can travel along the extension direction of 101.

The ground wheel 30 is a wheel that rolls along the bottom surface 101a, and at least a part thereof is arranged so as to project downward from the lower end of the guide wheel 20. As a result, when the vehicle 1 is traveling, the grounding wheel 30 comes into contact with the bottom surface 101a, so that it is possible to prevent the guide wheel 20 from coming into contact with the bottom surface 101a.

Next, the detailed configuration of the guide device 10 will be described with reference to FIGS. 2 and 3. 2 (a) is a partially enlarged view of the vehicle 1 in the direction of arrow IIa of FIG. 1 (b), and FIG. 2 (b) is a partially enlarged sectional view taken along line IIb-IIb of FIG. 2 (a). be. 3A is a cross-sectional view taken along the line IIIa-IIIa of FIG. 2A, and FIG. 3B is a schematic view showing a state in which the guide device 10 follows along the side wall 101b formed of a curved surface. Is.

In addition, in FIGS. 2 and 3, the vehicle 1 (guide device 10) is schematically illustrated for ease of understanding. Further, in FIG. 2, the side wall 101b of the guide rail 101 is not shown, and in FIG. 2A, a part of the connecting member 50 is broken and the internal structure is shown. Further, the arrows UD, LR, and FB in FIGS. 2 and 3 indicate the vertical direction, the horizontal direction, and the front-rear direction of the vehicle 1 (guide device 10), respectively.

As shown in FIG. 2, a plurality of guide wheels 20 (four in the present embodiment) are arranged side by side along the front-rear direction of the vehicle body 2, and a plurality of guide wheels 20 along the front-rear direction of the vehicle body 2 are 1. As for rows, two rows are provided with the center of the vehicle body 2 in the left-right direction (see FIG. 3), and the plurality of (8 in total) guide wheels 20 are each composed of wheels having the same diameter.

Each of the plurality of guide wheels 20 includes an annular bearing 21 fixed to the second holding portion 44 of the holding member 40, which will be described later, and the ground wheel 30 is arranged on the inner peripheral side of the bearing 21 (FIG. 2). (B)). That is, if the ground contact wheels 30 also have a plurality of ground wheels 30 (4 in the present embodiment) along the front-rear direction of the vehicle body 2 in the same row as the guide wheels 20, the ground contact wheels 30 sandwich the center of the vehicle body 2 in the left-right direction. Arranged in a row (ie, a total of 8).

Further, the ground wheel 30 is fixed to the holding member 40 (second holding portion 44) so as not to swing (the height position of the axle). Therefore, since it is possible to suppress the ground contact wheel 30 from being displaced upward with respect to the guide wheel 20, it is possible to prevent the guide wheel 20 from coming into contact with the bottom surface 101a.

The holding member 40 that holds the plurality of guide wheels 20 and the ground wheel 30 is connected to the vehicle body 2 via the connecting member 50. The connecting member 50 is a member for vertically and vertically displaces the holding member 40 (guide wheel 20 and ground wheel 30) with respect to the vehicle body 2.

The connecting member 50 includes a fixing portion 51 that is connected to the lower part of the vehicle body 2 and is formed in a square cylinder shape, and a square cylinder-shaped sliding portion 52 that is inserted from below into the inner peripheral side of the fixing portion 51. A guide rail 53 for guiding the sliding of the sliding portion 52 with respect to the fixed portion 51, and a hydraulic cylinder 54 arranged on the inner peripheral side of the fixed portion 51 and the sliding portion 52 and connecting the vehicle body 2 and the holding member 40. And, it is configured to be expandable and contractible by a telescopic mechanism.

The guide rail 53 extends along the vertical direction of the vehicle body 2 between the inner peripheral surface of the fixed portion 51 and the outer peripheral surface of the sliding portion 52 facing each other. A total of 6 guide rails 53 are arranged, one on each of the front and back surfaces of the sliding portion 52, and two on each of the left and right sides of the sliding portion 52. The sliding portion 52 slides on the inner peripheral side of the fixed portion 51 via the plurality of guide rails 53, and the sliding portion 52 is configured to be vertically displaceable with respect to the fixed portion 51 (vehicle body 2). The rail.

The hydraulic cylinder 54 is a double-acting hydraulic cylinder, and is arranged in a posture in which the expansion / contraction direction thereof faces the vertical direction of the vehicle body 2. Therefore, the holding member 40 connected to the lower end of the hydraulic cylinder 54 can be relatively displaced with respect to the vehicle body 2 by the expansion and contraction of the hydraulic cylinder 54, and the relative displacement is caused by the connecting member 50 (fixed portion 51 and sliding portion 52). You will be guided.

As a result, the guide wheel 20 and the ground wheel 30 can be stored on the vehicle body 2 side by shortening the hydraulic cylinder 54, and the ground wheel 30 can be grounded on the bottom surface 101a by extending the hydraulic cylinder 54. ..

Further, as will be described in detail later, by releasing the internal pressure of the hydraulic cylinder 54, the hydraulic cylinder 54 can be freely expanded and contracted. Therefore, when the internal pressure of the hydraulic cylinder 54 is released, the holding member 40 can be relatively displaced (vertically moved) with respect to the vehicle body 2 by sliding the sliding portion 52, and the ground wheel 30 is moved when the vehicle 1 is traveling. It rolls following the unevenness of the bottom surface 101a. That is, the weight of the guide wheel 20, the ground contact wheel 30, and the holding member 40 allows the vehicle 1 to travel with the ground contact wheel 30 always in contact with the bottom surface 101a. The gap can always be minimized. Therefore, since the side wall 101b can be formed lower by that amount, the construction cost of the guide rail 101 can be reduced.

Further, by running the vehicle 1 while pressing the holding member 40 (grounding wheel 30) toward the bottom surface 101a by the internal pressure of the hydraulic cylinder 54, the vehicle 1 is driven with the grounding wheel 30 always in contact with the bottom surface 101a. Can be made to. Further, the pressing force toward the bottom surface 101a suppresses the ground contact wheel 30 from floating from the bottom surface 101a, and the ground contact wheel 30 can be made to follow the bottom surface 101a more reliably. It is possible to prevent 20 from coming off.

Further, since a plurality of ground contact wheels 30 are arranged along the front-rear direction of the vehicle body 2, for example, a recess extending in the left-right direction of the vehicle body 2 is formed on the bottom surface 101a, and the front ground wheel 30 is fitted into the recess. Even if an attempt is made to get stuck, the ground contact wheel 30 located on the rear side of the ground contact wheel 30 touches the bottom surface 101a, and the downward displacement of the holding member 40 (guide wheel 20) is restricted. Therefore, it is possible to prevent the ground wheel 30 from falling into the recess formed in the bottom surface 101a and the guide wheel 20 from coming into contact with the bottom surface 101a. Further, even when the convex portion is formed on the bottom surface 101a, the contact between the convex portion and the guide wheel 20 can be suppressed by the ground contact wheel 30 getting over the convex portion.

By the way, in order to stably guide the guide device 10 to the guide rail 101 (bottom surface 101a and side wall 101b) and prevent the guide wheel 20 from coming into contact with the bottom surface 101a, the ground wheels 30 are arranged apart from each other. It is preferable to do so.

Here, in the case of a structure in which the guide wheel 20 and the ground wheel 30 are separately provided, it is necessary to separately provide a space for arranging the guide wheel 20 and the ground wheel 30, and the guide device 10 becomes large.

On the other hand, according to the vehicle 1 of the present embodiment, the ground wheel 30 is arranged on the inner peripheral side of the bearing 21 of the guide wheel 20 (see FIG. 2B), so that the ground wheel 30 is provided. The ground wheel 30 can be arranged at a position as far as possible from the center of the guide device 10 while eliminating the need to provide a space for disposing the guide wheel 20 around the guide wheel 20. Therefore, for example, the guide device 10 can be stably guided to the guide rail 101 while the guide device 10 is miniaturized.

Here, it is possible to configure all of the plurality of grounding wheels 30 as wheels having the same (same diameter), but in the present embodiment, the plurality of grounding wheels 30 are the most front side and the most on the guide device 10. A pair of first ground contact wheels 31 arranged on the rear side and a pair of first ground contact wheels 31 (between facing each other in the front-rear direction of the vehicle body 2) and having a smaller diameter than the first ground contact wheels 31. It is composed of a second ground contact wheel 32, which is composed of the wheels of the above.

The lower end of the second ground contact wheel 32 is located above the lower end of the first ground contact wheel 31, and when the vehicle 1 is running, the first ground contact wheel 31 mainly touches the bottom surface 101a and rolls. That is, the second ground contact wheel 32 is configured as an auxiliary wheel for preventing the guide wheel 20 from coming into contact with the bottom surface 101a or the convex portion when the concave portion or the convex portion is formed on the bottom surface 101a.

Therefore, when the bottom surface 101a is flat, the vehicle 1 can be driven in a state where the first ground contact wheel 31 is grounded to the bottom surface 101a and the second ground contact wheel 32 is separated from the bottom surface 101a. That is, since it is possible to suppress the second ground contact wheel 32 from always touching the bottom surface 101a, it is possible to suppress the wear of the second ground contact wheel 32 and suppress the deterioration of the second ground contact wheel 32.

Further, since the first ground contact wheel 31 is arranged on the frontmost side and the rearmost side of the guide device 10, the first ground contact wheel 31 can be arranged at a position farthest from the center of the guide device 10. can. Therefore, since it is possible to prevent the holding member 40 from tilting with respect to the bottom surface 101a in the length direction, it is possible to more reliably prevent the guide wheel 20 from coming into contact with the bottom surface 101a.

As shown in FIG. 3, the holding member 40 is attached to a first shaft 41 connected to the lower end of the connecting member 50, a first holding portion 42 supported by the first shaft 41, and the first holding portion 42 thereof. A pair of second shafts 43 to be arranged and a pair of second holding portions 44 supported by the pair of second shafts 43 are provided.

The first shaft 41 is a bearing for rotatably supporting the holding member 40 (first holding portion 42) with respect to the connecting member 50, and the shaft is arranged in a posture facing the vertical direction of the vehicle body 2. Will be done. As a result, when the vehicle 1 travels on a curve along the guide rail 101, the guide wheel 20 comes into contact with the side wall 101b, so that the holding member 40 rotates around the first axis 41 with respect to the connecting member 50. do. Therefore, since the ground wheel 30 can be rolled along the guide rail 101 (the ground wheel 30 can be suppressed from skidding), the wear of the ground wheel 30 can be suppressed and the deterioration of the ground wheel 30 can be suppressed. Can be done.

The first holding portion 42 is formed so as to project in the front-rear direction of the vehicle body 2 with the first shaft 41 interposed therebetween, and a pair of second shafts 43 are arranged on the tip end side of the overhang (separated in the front-rear direction of the vehicle body 2). Will be set up. The second holding portion 44 is supported below the first holding portion 42 by the second shaft 43.

The second shaft 43 is a bearing for rotatably supporting the second holding portion 44 with respect to the first holding portion 42, and is arranged in a posture in which the shaft is oriented in the vertical direction of the vehicle body 2. As a result, a plurality of guide wheels 20 are brought into contact with each other along the side wall 101b formed of a curved surface, as compared with the case where the holding member 40 (first holding portion 42 and second holding portion 44) is pivotally supported only by the first shaft 41. It can be made easier. Therefore, when the vehicle 1 travels on a curve, the vehicle 1 can be more reliably traveled along the guide rail 101 (see FIG. 3B).

A pair of second holding portions 44 are arranged in the front-rear direction of the vehicle body 2. The second holding portion 44 holds four guide wheels 20 and four ground wheels 30 each (a pair of second holding portions 44 holds a total of eight guide wheels 20 and eight ground wheels 30). ) Therefore, in the second holding portion 44 of 1, a plurality of (two in this embodiment) guide wheels 20 can be brought into contact with the side wall 101b. As a result, the vehicle 1 (guide device 10) can be more reliably traveled along the guide rail 101.

Next, the hydraulic circuit of the vehicle 1 (guide device 10) will be described with reference to FIG. FIG. 4 is a schematic view showing the hydraulic circuit of the vehicle 1. In FIG. 4, in order to simplify the drawing, the first ground contact wheel 31 and the second ground contact wheel 32 are shown as wheels having the same diameter, respectively.

As shown in FIG. 4, the hydraulic circuit of the vehicle 1 (guide device 10) includes a tank 60 in which hydraulic oil for supplying to the hydraulic cylinder 54 is stored, a supply oil passage 61 connected to the tank 60, and a return. The oil passage 62, the first switching valve 63 connected to the supply oil passage 61 and the return oil passage 62, the first oil passage 64 and the second oil passage 65 connected to the first switching valve 63, and the like. The operating check valves 66, 76 and the flow control valves 67, 77 arranged in the first oil passage 64 and the second oil passage 65, respectively, and the hydraulic pressure of the operated check valves 66, 76 and the flow control valves 67, 77. An internal pressure opening circuit 68 arranged on the cylinder 54 side, a communication oil passage 69 communicating the first oil passage 64 and the second oil passage 65 on the hydraulic cylinder 54 side of the internal pressure opening circuit 68, and the communication oil passage thereof. The accumulator 70 is provided in the second oil passage 65 on the side of the hydraulic cylinder 54 with respect to 69. The "oil passage" is a pipe connecting each part of the hydraulic circuit of the vehicle 1.

The supply oil passage 61 is connected to one port on the tank 60 side of the first switching valve 63, and the return oil passage 62 is connected to the other port on the tank 60 side. A pump 80 is provided in the supply oil passage 61, and when the pump 80 is driven by the rotation of the motor 81, the hydraulic oil stored in the tank 60 is pressure-fed to the first switching valve 63.

Further, the first oil passage 64 is connected to one port on the hydraulic cylinder 54 side of the first switching valve 63, and the second oil passage 65 is connected to the other port. The first switching valve 63 has a first position 63a for communicating the supply oil passage 61 with the second oil passage 65 and the return oil passage 62 with the first oil passage 64, and the first oil passage 64 and the second oil passage. The second position 63b, which communicates 65 together with the return oil passage 62, and the third position 63c, which communicates the supply oil passage 61 with the first oil passage 64 and the return oil passage 62 with the second oil passage 65. Each is configured as a switchable electromagnetic valve.

The first oil passage 64 is an oil passage connecting the first switching valve 63 and the rod side chamber 54a of the hydraulic cylinder 54, and the second oil passage 65 is the first switching valve 63 and the head side chamber 54b of the hydraulic cylinder 54. It is an oil passage that connects.

An operated check valve 66 is arranged in the first oil passage 64 on the hydraulic cylinder 54 side of the first switching valve 63. The operating check valve 66 includes a check valve 66a that shuts off the return of hydraulic oil from the hydraulic cylinder 54 side to the tank 60 side, and a pilot oil passage 66b connected to the check valve 66a. The pilot pressure of the second oil passage 65 is applied to the operated check valve 66 via the pilot oil passage 66b.

A flow control valve 67 is provided in the first oil passage 64 on the hydraulic cylinder 54 side of the operating check valve 66, and the flow control valve 67 shuts off the return of hydraulic oil from the hydraulic cylinder 54 side to the tank 60 side. It is composed of a check valve 67a and a throttle valve 67b.

An operated check valve 76 is provided in the second oil passage 65 on the hydraulic cylinder 54 side of the first switching valve 63. The operating check valve 76 includes a check valve 76a that shuts off the return of hydraulic oil from the hydraulic cylinder 54 side to the tank 60 side, and a pilot oil passage 76b connected to the check valve 76a. The pilot pressure of the first oil passage 64 is applied to the operated check valve 76 via the pilot oil passage 76b.

A flow control valve 77 is provided in the second oil passage 65 on the hydraulic cylinder 54 side of the operating check valve 76, and the flow control valve 77 shuts off the return of hydraulic oil from the hydraulic cylinder 54 side to the tank 60 side. It is composed of a check valve 77a and a throttle valve 77b.

The internal pressure release circuit 68 is arranged in a third oil passage 68a connecting the first oil passage 64 and the second oil passage 65 on the hydraulic cylinder 54 side of the flow control valves 67 and 77, and in the third oil passage 68a thereof. A pair of check valves 68b and 68c, a fourth oil passage 68d connecting the first oil passage 64 and the second oil passage 65 on the hydraulic cylinder 54 side of the third oil passage 68a, and a fourth oil passage 68d thereof. The fifth oil passage 68g and the sixth oil passage 68h connecting the third oil passage 68a and the fourth oil passage 68d, and the fifth oil passage 68g thereof are arranged in the pair of check valves 68e and 68f arranged in the above. It includes a relief valve 68i to be provided, a second switching valve 68j arranged in the sixth oil passage 68h, and a seventh oil passage 68k connecting the third oil passage 68a and the return oil passage 62.

The check valve 68b is a check valve that shuts off the inflow of hydraulic oil from the first oil passage 64 to the third oil passage 68a, and the check valve 68c is from the second oil passage 65 to the third oil passage 68a. It is a check valve that shuts off the inflow of hydraulic oil. One end of the fifth oil passage 68g and the sixth oil passage 68h is connected to the third oil passage 68a located between the check valve 68b and the check valve 68c in the third oil passage 68a. The other ends of the fifth oil passage 68g and the sixth oil passage 68h are connected to the fourth oil passage 68d located between the check valve 68e and the check valve 68f in the fourth oil passage 68d. The check valve 68e is a check valve that shuts off the outflow of hydraulic oil from the fourth oil passage 68d to the first oil passage 64, and the check valve 68f is from the fourth oil passage 68d to the second oil passage 65. It is a check valve that shuts off the outflow of hydraulic oil.

The relief valve 68i is configured as a valve for relieving hydraulic oil from the fourth oil passage 68d to the third oil passage 68a when a predetermined pressure is exceeded, and the second switching valve 68j is inside the sixth oil passage 68h. It is configured as a solenoid valve that opens and closes the communication state.

The communication oil passage 69 is provided with an on-off valve 69a that opens and closes the communication state inside the communication passage 69. The accumulator 70 is an accumulator composed of a container 70a in which gas is sealed and an on-off valve 70b that opens and closes the communication state between the container 70a and the second oil passage 65.

The hydraulic cylinder 54 is a hydraulic cylinder including a piston 54c for partitioning a rod side chamber 54a and a head side chamber 54b, and a piston rod 54d connected to the piston 54c and arranged in the rod side chamber 54a. The piston rod 54d of 54 is connected to the holding member 40.

Next, the expansion / contraction operation of the hydraulic cylinder 54 will be described with reference to FIGS. 5 to 11. FIG. 5 is a schematic view showing a hydraulic circuit when the hydraulic cylinder 54 is extended. FIG. 6 is a schematic diagram showing a hydraulic circuit when the ground contact wheel 30 is pressed against the bottom surface 101a of the guide rail 101 by the internal pressure of the accumulator 70. FIG. 7 is a schematic view showing a hydraulic circuit when the hydraulic cylinder 54 is shortened by the action of a force pushing the ground wheel 30 upward from the state of FIG. FIG. 8 is a schematic diagram showing a hydraulic circuit when the internal pressure of the hydraulic cylinder 54 is released. FIG. 9 is a schematic view showing a hydraulic circuit when the hydraulic cylinder 54 is shortened in a state where the internal pressure is released. FIG. 10 is a schematic view showing a hydraulic circuit when the hydraulic cylinder 54 is shortened. FIG. 11 is a schematic diagram showing a hydraulic circuit when the hydraulic cylinder 54 is maintained in a shortened state.

In FIGS. 5 to 11, in order to simplify the drawing, the first ground contact wheel 31 and the second ground contact wheel 32 are shown as wheels having the same diameter, respectively. Further, in FIGS. 5 to 11, the portion indicated by the thick arrow indicates the main route through which the hydraulic oil moves, and the portion indicated by the broken line in the thick line indicates the main route through which the movement of the hydraulic oil is blocked. The paths are marked with A to W. Further, the open / closed state of the on-off valve 69a and the on-off valve 70b is shown in white or black, and the white is in the open state and the black is in the closed state.

As shown in FIG. 5, when the hydraulic cylinder 54 is extended, the pump 80 is driven in a state where the first switching valve 63 is switched to the first position 63a. As a result, hydraulic oil is pumped to the head side chamber 54b of the hydraulic cylinder 54 (through the second oil passage 65) via the first switching valve 63, the operation check valve 76, and the flow rate control valve 77 (check valve 77a). (Route A). At this time, the second switching valve 68j and the on-off valve 69a are in the closed state, and the return of the hydraulic oil from the second oil passage 65 to the tank 60 via the fourth oil passage 68d and the sixth oil passage 68h is the second switching. It is shut off by the valve 68j (path B), and the inflow of hydraulic oil from the second oil passage 65 to the first oil passage 64 via the communication oil passage 69 is cut off by the on-off valve 69a (path C).

In this case, by opening the on-off valve 70b of the accumulator 70, a part of the hydraulic oil supplied to the head side chamber 54b of the hydraulic cylinder 54 is also supplied to the container 70a of the accumulator 70 (path D). , A predetermined pressure is accumulated in the accumulator 70.

On the other hand, when the internal pressure of the second oil passage 65 reaches a predetermined value when the hydraulic oil is supplied to the head side chamber 54b, the pilot pressure is applied through the pilot oil passage 66b (path E) and is distributed to the first oil passage 64. The check valve 66a to be installed is opened. Therefore, the hydraulic oil extruded from the rod side chamber 54a as the hydraulic cylinder 54 expands includes a flow control valve 67 (throttle valve 67b), an operated check valve 66 (check valve 66a), and a first switching valve 63 (first position). 63a) and is returned to the tank 60 via the return oil passage 62 (route F). As a result, the hydraulic cylinder 54 can be extended, and the ground wheel 30 is grounded to the bottom surface 101a.

As shown in FIG. 6, when the drive of the pump 80 is stopped from the state of FIG. 5 and the first switching valve 63 is switched to the second position 63b, the tank 60 side of the check valve 76a of the second oil passage 65. The pressure in the second oil passage 65 is reduced (the hydraulic oil is returned to the tank 60), so that the pilot pressure through the pilot oil passage 66b is reduced and the check valve is arranged in the first oil passage 64. The valve 66a is closed. Therefore, in both the first oil passage 64 and the second oil passage 65, the return of the hydraulic oil from the hydraulic cylinder 54 side to the tank 60 side is blocked by the check valves 66a and 76a (path G).

At this time, since the second switching valve 68j is in the closed state, the return of the hydraulic oil from the first oil passage 64 and the second oil passage 65 to the tank 60 via the second switching valve 68j is also blocked (path). H). That is, the tank 60 is shut off from the rod side chamber 54a and the head side chamber 54b by the check valves 66a and 76a of the operation check valves 66 and 76, the second switching valve 68j in the closed state, and the like.

By opening the on-off valve 69a in such a shutoff state, the head side chamber 54b is communicated with the rod side chamber 54a via the second oil passage 65, the communication oil passage 69 and the first oil passage 64, and the pressure is accumulated in the accumulator 70. The rod side chamber 54a and the head side chamber 54b are pressurized by the applied pressure (supply of hydraulic oil from the container 70a to the second oil passage 65) (path I). In this case, by disposing the piston rod 54d in the rod side chamber 54a, the pressure receiving area of the piston 54c on the rod side chamber 54a side is smaller than that on the head side chamber 54b side by the cross-sectional area of the piston rod 54d.

Therefore, since the internal pressure of the head side chamber 54b generates a force to extend the hydraulic cylinder 54, a part of the hydraulic oil in the rod side chamber 54a is supplied to the head side chamber 54b by the extension of the hydraulic cylinder 54 (path J). As a result, a force in the direction of pressing the ground contact wheel 30 against the bottom surface 101a can always be generated. Therefore, by running the vehicle 1 in this state, the ground contact wheel 30 can be reliably followed by the bottom surface 101a. Therefore, it is possible to prevent the guide wheel 20 from coming off from the side wall 101b of the guide rail 101.

As shown in FIG. 7, when the hydraulic cylinder 54 is shortened by the force of pushing the ground wheel 30 upward due to the unevenness of the bottom surface 101a from the state where the ground wheel 30 is pressed against the bottom surface 101a (see FIG. 6). Since the side chamber 54a and the head side chamber 54b are shut off from the tank 60 (paths G and H), the hydraulic oil for which the hydraulic cylinder 54 is shortened is supplied from the head side chamber 54b to the rod side chamber 54a (path K). In this case, since the volume of the head side chamber 54b is larger than that of the rod side chamber 54a by the volume of the piston rod 54d, a part of the hydraulic oil supplied from the head side chamber 54b to the rod side chamber 54a accumulates pressure by the difference in the volume. It is accumulated (accumulated) in the container 70a of the vessel 70 (path L).

When the pushing force is relaxed, the rod side chamber 54a and the head side chamber 54b are pressurized by the pressure accumulated in the accumulator 70 (supply of hydraulic oil from the container 70a to the second oil passage 65). That is, as in the case of FIG. 6, since the force for extending the hydraulic cylinder 54 is generated by the internal pressure of the head side chamber 54b by the difference in the pressure receiving area of the piston 54c, the ground wheel can be pressed against the bottom surface 101a. Therefore, even when unevenness is formed on the bottom surface 101a, the ground wheel 30 can be reliably followed by the pressure accumulating pressure in the accumulator 70 (container 70a). Therefore, it is possible to prevent the guide wheel 20 from coming off from the side wall 101b of the guide rail 101.

As shown in FIG. 8, when the internal pressure of the hydraulic cylinder 54 is released, the on-off valve 70b is closed and the second switching valve 68j is switched to the open state to open the rod side chamber 54a and the head side chamber 54b. It communicates with the tank 60 via 1 oil passage 64 and 2nd oil passage 65, 4th oil passage 68d, 6th oil passage 68h, 3rd oil passage 68a, 7th oil passage 68k and a return oil passage 62.

As a result, hydraulic oil can flow between the rod side chamber 54a and the head side chamber 54b and the tank 60, and the hydraulic cylinder 54 can be freely expanded and contracted. That is, for example, when the hydraulic cylinder 54 is extended due to the unevenness of the bottom surface 101a while the internal pressure of the hydraulic cylinder 54 is released, the hydraulic oil pushed out from the rod side chamber 54a by the extension is the first oil passage 64 and the fourth oil. It is supplied to the head side chamber 54b via the road 68d, the sixth oil passage 68h, the third oil passage 68a, and the second oil passage 65 (path M). In this case, the volume of the head side chamber 54b is larger than that of the rod side chamber 54a by the volume of the piston rod 54d. It is supplied to the head side chamber 54b via the passage 68a and the second oil passage 65 (path N).

On the other hand, as shown in FIG. 9, when the hydraulic cylinder 54 is shortened (from the state of FIG. 8) when the internal pressure of the hydraulic cylinder 54 is released, the hydraulic oil pushed out from the head side chamber 54b by the shortening is the second hydraulic oil. It is supplied to the rod side chamber 54a via the oil passage 65, the fourth oil passage 68d, the sixth oil passage 68h, the third oil passage 68a, and the first oil passage 64 (path O). In this case, the hydraulic oil having the volume difference between the rod side chamber 54a and the head side chamber 54b is returned to the tank 60 via the seventh oil passage 68k and the return oil passage 62 (path P).

That is, by communicating the rod side chamber 54a and the head side chamber 54b with the tank 60, the internal pressure of the rod side chamber 54a and the head side chamber 54b can be released, and the hydraulic cylinder 54 can be freely expanded and contracted. As a result, the ground wheel 30 can be made to follow the bottom surface 101a by the weight of the holding member 40 (guide wheel 20 and ground wheel 30). Therefore, for example, when the vehicle 1 is driving slowly or when the unevenness formed on the bottom surface 101a is small, it is preferable to make the ground contact wheel 30 follow the bottom surface 101a by the weight of the holding member 40 to drive the vehicle 1. As a result, the wear of the ground contact wheel 30 can be suppressed and the deterioration of the ground contact wheel 30 can be suppressed as compared with the case where the ground wheel 30 is always pressed against the bottom surface 101a.

As shown in FIG. 10, when the hydraulic cylinder 54 is shortened, the pump 80 is driven in a state where the first switching valve 63 is switched to the third position 63c. As a result, hydraulic oil is pumped to the rod side chamber 54a of the hydraulic cylinder 54 (through the first oil passage 64) via the first switching valve 63, the operation check valve 66, and the flow rate control valve 67 (check valve 67a). (Route Q). At this time, the second switching valve 68j and the on-off valve 69a are in the closed state, and the return of the hydraulic oil from the first oil passage 64 to the tank 60 via the fourth oil passage 68d and the sixth oil passage 68h is the second switching. It is shut off by the valve 68j (path R), and the inflow of hydraulic oil from the first oil passage 64 to the second oil passage 65 via the communication oil passage 69 is shut off by the on-off valve 69a (path S). As a result, the hydraulic oil pumped to the first oil passage 64 is supplied to the rod side chamber 54a of the hydraulic cylinder 54.

On the other hand, when the internal pressure of the first oil passage 64 reaches a predetermined value when the hydraulic oil is supplied to the rod side chamber 54a, the pilot pressure is applied through the pilot oil passage 66b (path T) and is distributed to the second oil passage 65. The check valve 76a to be installed is opened. Therefore, the hydraulic oil extruded from the head side chamber 54b as the hydraulic cylinder 54 is shortened includes a flow control valve 77 (throttle valve 77b), an operated check valve 76 (check valve 76a), and a first switching valve 63 (third position). 63c) and is returned to the tank 60 via the return oil passage 62 (route U). As a result, the hydraulic cylinder 54 can be shortened, and the guide wheel 20 and the ground wheel 30 can be stored on the vehicle body 2 (see FIG. 1) side.

As shown in FIG. 11, when the drive of the pump 80 is stopped from the state where the hydraulic cylinder 54 is shortened (see FIG. 10) and the first switching valve 63 is switched to the second position 63b, the first oil passage 64 Since the pressure in the first oil passage 64 on the tank 60 side of the check valve 66a decreases (the hydraulic oil is returned to the tank 60), the pilot pressure through the pilot oil passage 76b decreases, and the second oil The check valve 76a arranged on the road 65 is closed. Therefore, in both the first oil passage 64 and the second oil passage 65, the return of the hydraulic oil from the hydraulic cylinder 54 side to the tank 60 side is blocked by the check valves 66a and 76a (path V).

At this time, since the second switching valve 68j is in the closed state, the return of the hydraulic oil from the first oil passage 64 and the second oil passage 65 to the tank 60 via the second switching valve 68j is also blocked (path). W). That is, the tank 60 is shut off from the rod side chamber 54a and the head side chamber 54b by the check valves 66a and 76a of the operation check valves 66 and 76, the second switching valve 68j in the closed state, and the like. As a result, the hydraulic cylinder 54 can be maintained in a shortened state, so that maintenance of the guide wheel 20 and the ground wheel 30 can be easily performed, for example.

As described above, according to the vehicle 1 of the present embodiment, it is selected to run by pressing the ground contact wheel 30 against the bottom surface 101a and to make the ground contact wheel 30 follow the bottom surface 101a by the weight of the holding member 40. Possible to be configured. Therefore, by making such a selection according to the state of the guide rail 101 (presence or absence of a curve or unevenness), the vehicle 1 can be stably guided along the guide rail 101, and the wear of the ground contact wheel 30 is suppressed. It is possible to achieve both suppression of deterioration of the vehicle 1 (guide device 10).

Although the present invention has been described above based on the above-described embodiment, the present invention is not limited to the above-mentioned embodiment, and it is easy that various modifications and improvements can be made without departing from the spirit of the present invention. It can be inferred from.

In the above embodiment, the case where the vehicle 1 is configured as a means of transportation for transporting passengers and cargo has been described, but the present invention is not limited to this. For example, the vehicle 1 may be configured as a large transport vehicle or an automatic guided vehicle that transports heavy loads such as large steel materials and products on the premises of a factory or the like. That is, the guide device 10 may be applied to such a transport vehicle or an unmanned transport vehicle.

In the above embodiment, the case where the guide pavement 101 is configured as a concave groove recessed in the road surface 100 has been described, but the present invention is not limited to this. For example, the technical idea of the vehicle 1 (guide device 10) of the above-described embodiment is also for a rail-shaped guide rail extending on the road surface and a guide rail having side walls at the left and right ends of the road surface. It can be adopted. In any form of the guide rail, by providing a grounding wheel that touches the bottom surface or the road surface of the guide rail, it is possible to prevent the guide wheel from coming into contact with the bottom surface or the road surface of the guide rail. In the case of a rail-shaped guide rail, the side surface of the rail corresponds to the "side wall" of claim 1.

In the above embodiment, the case where eight guide wheels 20 and eight ground wheels 30 are arranged in each of the guide devices 10 has been described, but the present invention is not limited to this, and the guide wheels 20 and the ground wheels 20 are not necessarily limited to this. The number of 30 can be set as appropriate. Therefore, the number of guide wheels 20 and the number of ground contact wheels 30 may be less than eight or may be nine or more. Further, for example, a plurality of guide wheels 20 and ground wheels 30 may be provided in one row along the front-rear direction of the vehicle body 2, or a different number of guide wheels 20 and ground wheels 30 may be provided.

In the above embodiment, the case where the ground contact wheel 30 is arranged on the inner peripheral side of the bearing 21 of the guide wheel 20 has been described, but the present invention is not limited to this, and the ground contact wheel 30 is provided on the outer peripheral side of the guide wheel 20. It may be arranged. Therefore, for example, the ground wheel 30 may be arranged between the pair of left and right guide wheels 20 facing each other, and the ground wheel 30 may be rolled along the bottom surface 101a of the guide rail 101. Further, the ground contact wheel 30 may be arranged on the outer side in the left-right direction with respect to the guide wheel 20, and the ground contact wheel 30 may be rolled along the road surface 100 (the surface on which the traveling wheel 3 rolls). That is, if the grounding wheel 30 is rotatably held by the holding member 40 (second holding portion 44) and the grounding wheel 30 is rolled along the road surface 100 or the bottom surface 101a of the guide rail 101, the grounding wheel 30 is rolled. The arrangement position of 30 can be appropriately set.

In the above embodiment, the case where the ground contact wheel 30 is composed of the first ground contact wheel 31 and the second ground contact wheel 32 having different wheel diameters has been described, but the present invention is not necessarily limited to this, and for example, the ground contact wheel. All 30 may be composed of wheels having the same diameter. As a result, the number of parts is reduced as compared with the case where wheels having different diameters are used, so that the product cost of the vehicle 1 can be reduced. Further, even when all the grounding wheels 30 are composed of wheels having the same diameter, by raising the position of the axles of some of the grounding wheels 30, the grounding wheels 30 are separated from the bottom surface 101a as in the second grounding wheel 32. Can be made to.

In the above embodiment, the case where the axle of the ground wheel 30 is fixed to the holding member 40 so as not to swing is described, but the present invention is not limited to this, and for example, the ground wheel 30 is attached to the holding member 40. It may be supported by a suspension (buffer).

In the above embodiment, as an example of the relative displacement of the holding member 40 with respect to the vehicle body 2, the vertical movement by the connecting member 50 provided with the telescopic mechanism is exemplified, but the present invention is not limited to this. For example, the holding member 40 may be moved up and down by a swing arm, or the holding member 40 may be supported by a suspension with respect to the vehicle body 2 (the holding member 40 is moved up and down by a shock absorber).

In the above embodiment, the hydraulic cylinder 54 has been exemplified as an example of the driving means, but the present invention is not limited to this, and the connecting member 50 is, for example, an electric actuator, an air cylinder, a ball screw type cylinder, or the like. May be expanded and contracted, or a configuration in which the drive source is omitted (the holding member 40 is simply slidably supported up and down) may be used.

In the above embodiment, the first holding portion 42 is connected to the connecting member 50 via the first shaft 41, and the pair of second holding portions 44 are connected to the first holding portion 42 via the second shaft 43, respectively. However, the case is not limited to this. For example, it is naturally possible to omit the first shaft 41 or increase or decrease the second shaft 43 according to the number and arrangement of the guide wheels 20.

In the above embodiment, the case where the second holding portion 44 rotates around the axis of the second shaft 43 with respect to the first holding portion 42 has been described. For example, the second holding portion 44 with respect to the first holding portion 42 has been described. A stopper may be provided to limit the range of rotation. In this case, for example, a through hole (groove) formed with a predetermined length along the axis of the second shaft 43 is provided in the first holding portion 42 (second holding portion 44), and the through hole is provided. The protrusion fitted to the (groove) may be provided on the second holding portion 44 (first holding portion 42). As a result, when the guide wheel 20 and the ground wheel 30 are stored on the vehicle body 2 side, it is possible to prevent the second holding portion 44 from excessively rotating with respect to the first holding portion 42.

In the above embodiment, the case where the hydraulic cylinder 54 is configured as a double-acting hydraulic cylinder has been described, but the present invention is not limited to this. For example, the hydraulic cylinder 54 may be configured as a single-acting hydraulic cylinder. In this case, the guide wheel 20 and the ground wheel 30 can be stored on the vehicle body 2 side by supplying hydraulic oil only to the rod side chamber 54a of the hydraulic cylinder 54. Further, by releasing the internal pressure of the rod side chamber 54a from that state (connecting the rod side chamber 54a to the tank 60), the ground wheel 30 can be made to follow the bottom surface 101a by the weight of the holding member 40.

1 Vehicle (guide rail type vehicle)
2 Body 3 Traveling wheels 10 Guide device (guide device for guide rail type vehicles)
20 Guide wheel 30 Ground wheel 31 First ground wheel 32 Second ground wheel 40 Holding member 50 Connecting member 54 Hydraulic cylinder 54a Rod side chamber 54b Head side chamber 64 First oil passage 65 Second oil passage 69 Communication oil passage 69a On-off valve 70 Accumulation valve 70 Vessel 101 Guide wheel 101b Side wall

Claims (8)

In a guide rail type vehicle including a vehicle body, a plurality of traveling wheels that support the vehicle body and run the vehicle body, and guide wheels that direct the axle in the vertical direction of the vehicle body and are in contact with the side wall of the guide rail. ,
The ground wheel is provided so that the axle is directed in a direction orthogonal to the axle of the guide wheel and orthogonal to the traveling direction of the vehicle body and is arranged so as to project downward from the guide wheel.
The ground contact wheel is a guide rail type vehicle characterized in that it is arranged on the inner peripheral side of the guide wheel. In a guide rail type vehicle including a vehicle body, a plurality of traveling wheels that support the vehicle body and run the vehicle body, and guide wheels that direct the axle in the vertical direction of the vehicle body and are in contact with the side wall of the guide rail. ,
A ground wheel whose axle is directed in a direction orthogonal to the axle of the guide wheel and orthogonal to the traveling direction of the vehicle body, a holding member for holding the ground wheel and the guide wheel, a holding member thereof, and the vehicle body. A double-acting hydraulic cylinder configured as a driving means to be connected, a first oil passage for supplying hydraulic oil to the rod side chamber of the hydraulic cylinder, and a second oil for supplying the hydraulic oil to the head side chamber of the hydraulic cylinder. A guide rail type vehicle comprising a road, a communication oil passage connecting the second oil passage and the first oil passage, and an on-off valve for opening and closing the communication state of the communication oil passage. A holding member for holding the ground wheel and the guide wheel, and a connecting member for connecting the holding member to the vehicle body are provided.
The guide rail type according to claim 1 or 2, wherein the connecting member displaces the holding member in a direction away from the vehicle body and a direction close to the vehicle body in the vertical direction of the vehicle body. vehicle. The guide rail type vehicle according to claim 2, further comprising a pressure accumulator arranged in the second oil passage on the hydraulic cylinder side of the communication oil passage. The guide rail type vehicle according to any one of claims 1 to 4, wherein a plurality of the ground contact wheels are arranged in the front-rear direction of the vehicle body. The guide rail according to claim 5, wherein the plurality of grounding wheels are composed of a first grounding wheel and a second grounding wheel whose lower end is located above the lower end of the first grounding wheel. Ceremony vehicle. It is used for a guide rail type vehicle provided with a vehicle body and a plurality of traveling wheels that support the vehicle body and run the vehicle body, and the axle is directed in the vertical direction of the vehicle body and abuts on the side wall of the guide rail. In a guide rail type vehicle guide device equipped with a guide wheel
It is provided with a ground wheel which is arranged so as to direct the axle in a direction orthogonal to the axle of the guide wheel and orthogonal to the traveling direction of the vehicle body and to project downward from the guide wheel.
The ground contact wheel is a guide device for a guide rail type vehicle, characterized in that the ground wheel is arranged on the inner peripheral side of the guide wheel. It is used for a guide rail type vehicle provided with a vehicle body and a plurality of traveling wheels that support the vehicle body and run the vehicle body, and the axle is directed in the vertical direction of the vehicle body and abuts on the side wall of the guide rail. In a guide rail type vehicle guide device equipped with a guide wheel
A ground wheel whose axle is directed in a direction orthogonal to the axle of the guide wheel and orthogonal to the traveling direction of the vehicle body, a holding member for holding the ground wheel and the guide wheel, a holding member thereof, and the vehicle body. A double-acting hydraulic cylinder configured as a driving means to be connected, a first oil passage for supplying hydraulic oil to the rod side chamber of the hydraulic cylinder, and a second oil for supplying the hydraulic oil to the head side chamber of the hydraulic cylinder. A guide device for a guide rail type vehicle, which comprises a road, a communication oil passage connecting the second oil passage and the first oil passage, and an on-off valve for opening and closing the communication state of the communication oil passage. ..

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