JP5968747B2 - Large transport vehicle with hose clamps - Google Patents

Description

  The present invention relates to a large transport vehicle provided with a hose retaining fitting for an air hose connected when compressed air is supplied to a mounted air driving means.

  In steelworks or the like, large transport vehicles capable of automatic traveling are used, for example, when large heavy objects are transported on the premises. In such a large transport vehicle, a vehicle body having a total length of several meters to several tens of meters is supported by a plurality of traveling devices, and traveling and steering can be controlled by independent traveling devices. The vehicle body is provided with an air driving means that performs a predetermined function, and compressed air is supplied from an air tank installed in the facility through a compressor.

Japanese Utility Model Publication No. 6-63888

  Since the compressed air is supplied to the air drive means provided in the large transport vehicle at a high pressure, if the connection port of the air hose is disconnected, the tip of the air hose will fly off. Therefore, the air hose and the vehicle body side air pipe are coupled in an airtight state by a coupling, and a hose clamp that is firmly tightened with a bolt and a nut is used for connecting the air hose. However, even if carelessness by workers cannot be eliminated and the tightening of bolts and nuts becomes weak, the air hose may come off and the tip of the hose may damage surrounding objects.

  SUMMARY OF THE INVENTION In order to solve such problems, the present invention has an object to provide a large transport vehicle provided with a hose stopper that is provided on a vehicle body and prevents the air hose from coming off when compressed air is supplied.

  In order to supply compressed air from the outside to a plurality of traveling devices, a vehicle body on which a large transport object is mounted, an air driving means, and the air driving means. And a hose retaining bracket that prevents the air hose connected to the connection port from falling off. The hose retaining bracket is a flange-shaped member provided on the air hose. A retaining member that includes a retaining portion that comes into contact with the member and that is swingably attached to the vehicle body, a locking member that locks the retaining member and positions the body, and the locking member are integrated with the locking member. An unlocking member formed to swingably support the locking member, and the retaining member and the unlocking member to bias the retaining member in a direction to engage the locking member. And characterized in that and a spring member coupled to the member.

Moreover, it is preferable that the large sized conveyance vehicle provided with the hose retaining metal fitting which concerns on this invention has a state detection means to detect that the said retaining member is in the state positioned by the said lock member.
Further, in the large transport vehicle provided with the hose retaining metal fitting according to the present invention, the retaining member provided with the U-shaped portion so that the retaining member straddles the air hose and the shaft rod serving as the rotation shaft are joined. The shaft member is integrally formed and the shaft rod is rotatably attached to an upstanding support bracket, and the lock member has an inclined surface on the lower surface of the front end portion of the horizontally extending plate. A block and an L-shaped plate are fixed with a slight gap from the block, and the unlocking member is a straight bar member having a Z-shaped handle portion formed at one end, The lock member is joined to a straight portion, and the spring member is a tension spring, and is fixed to the end of the shaft rod of the retaining member and the end of the lock release member. Also connected to the moving bars It is preferable that.

  According to the present invention, even if the air hose is disconnected, the retaining member receives the flange-shaped member provided at the hose connecting portion, so that it can be prevented from coming off and danger can be avoided. And, although it is a swingable retaining member, if the swinging of the retaining member is restricted by the lock member, the air hose that has been removed vigorously can be reliably received and prevented from coming off. The positioning operation can be easily performed. On the other hand, since there is a lock release member, a biasing force acts in the swinging direction of the retaining member by the spring member, but the lock can be easily released, and the workability is good.

It is the perspective view which showed the large sized conveyance vehicle. It is the figure which showed the position of each member about the positioning mechanism of a large sized conveyance vehicle from a vehicle body plane. It is the figure which showed the positioning state of the fitting pin which comprises the positioning mechanism of a large sized conveyance vehicle. It is the perspective view which showed the hose clamp metal fitting of a large sized conveyance vehicle. It is a top view of the hose clamp metal fitting of a large sized conveyance vehicle. It is a front view (figure seen from the side surface of the vehicle body 10) of the hose retaining metal fitting of a large sized conveyance vehicle. It is the side view (AA arrow line view of FIG. 6) which showed the lock release state of the hose clamp metal fitting of a large sized conveyance vehicle. It is the side view (AA arrow line view of FIG. 6) which showed the locked state of the hose clamp metal fitting of a large sized conveyance vehicle.

  Next, a large transport vehicle provided with the hose retaining metal fitting according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a large transport vehicle. The large transport vehicle 1 according to this embodiment is configured such that a vehicle body 10 serving as a loading platform is supported by a plurality of traveling devices, and traveling and steering can be performed by controlling each traveling device with a mounted control device.

  The traveling device includes, for example, a traveling motor and a steering motor, and is provided with a traveling mechanism that rotates the axle by the traveling motor and a steering mechanism that steers the tire by the steering motor. An elevating mechanism for elevating the vehicle body by the operation of the hydraulic cylinder is also provided. A plurality of such travel devices are interlocked under the control of the control device, and the large transport vehicle 1 is traveled and steered.

  The large transport vehicle 1 can automatically travel on a travel route set in advance by control of a control device. For example, position information is received from a plurality of transponders embedded at a predetermined interval on the travel route, and the travel position and traveling direction are calculated from values detected by a mounted rotary encoder or gyroscope in addition to the position information. By the travel control and the steering control based on the calculation result, the large transport vehicle 1 travels to the destination along the designated travel route.

  Next, in the large transport vehicle 1, a vehicle body 10 having a rectangular shape in plan view constitutes a loading platform, and rails 11 and 12 are provided at both left and right ends along the longitudinal direction of the front and rear. That is, the large transport vehicle 1 is configured such that transported objects are moved on the vehicle body 10 via the rails 11 and 12 and loaded. Therefore, in addition to facilitating the handling of air piping, electric cables and the like, an opening is formed in the center of the vehicle body 10 where the loaded transported object does not come into contact, as well as reducing the weight of the vehicle body.

  Two rails 11 are laid on the upper surface of the vehicle body 10 on the left and right sides, and one rail 12 is laid between the rails 11 on one side. The conveyed product is loaded into and unloaded from the large conveyance vehicle 1 via a loading cart (not shown) provided with rollers that roll on the rails 11 and 12. The loading cart has rollers corresponding to the rails 11 and 12, but the rail corresponding to the rail 11 is a flangeless roller, and only the rail corresponding to the rail 12 is a flanged roller. For this reason, derailment of the loading carriage is prevented by a roller for the rail 12. Further, the large transport vehicle 1 is provided with a connecting member 15 at the front-rear direction end of the vehicle body 10 so that it can be connected to another large transport vehicle.

  The large transport vehicle 1 needs to be accurately positioned at a predetermined position at the time of connecting two vehicles back and forth, or when loading or unloading a transported object via a support base (not shown). Therefore, the large transport vehicle 1 is provided with a positioning mechanism that can be positioned with high accuracy at the stop position. Here, FIG. 2 is a diagram showing the position of each member constituting the positioning mechanism from the plane of the vehicle body, and FIG. 3 is a diagram showing a positioning state by the fitting pins constituting the positioning mechanism.

  As shown in FIG. 2, the positioning mechanism is provided with retractable fitting pins 21 at the center of the front portion and the rear portion of the vehicle body 10. As shown in FIG. 3, the fitting pin 21 is a cylinder rod of the hydraulic cylinder 22 and has a conical tip. A cone 25 having a fitting recess 25a in which the tip of the fitting pin 21 fits is embedded in the ground in accordance with the stop position. The fitting recess 25 a has a bowl shape that matches the shape of the fitting pin 21. The fitting pin 21 protrudes below the vehicle body 10, and is configured such that the distal end portion thereof enters and exits the fitting recess 25 a formed on the ground by the expansion and contraction operation of the hydraulic cylinder 22.

  Further, the large transport vehicle 1 is provided with an air bearing 28 for floating the vehicle body 10. In particular, the air bearings 28 are arranged on the front, rear, left, and right sides of the vehicle body 10, and the vehicle body 10 can be lifted while being balanced at the four positions, and the vehicle body 10 can be moved with a slight force. That is, even if the fitting pin 21 is displaced with respect to the fitting recess 25a, the air bearing 28 lifts the vehicle body 10 so that the fitting pin 21 can be reliably inserted into the fitting recess 25a. It is what I did.

  Although not shown in detail, the air bearing 28 is an air driving means that is constituted by a substantially circular flexible diaphragm and that is supplied with compressed air from a compressor (not shown) provided in the facility. Since the diaphragm has a discharge hole, the compressed air in the expanded diaphragm is ejected from the discharge hole, and an air film is formed between the diaphragm and the ground. The large transport vehicle 1 can float by the air pressure in the air film. Therefore, this positioning mechanism makes it possible to accurately position the large transport vehicle 1 at a predetermined position by fitting the fitting pin 21 into the fitting recess 25a in a state where the vehicle body 10 is lifted by the air bearing 28. ing.

  By the way, compressed air is supplied from outside the vehicle body provided in the facility to the air driving means provided in the large transport vehicle 1 such as the air bearing 28. Therefore, a connection port to the air pipe is provided on the side surface of the vehicle body 10, and an air hose for supplying compressed air from an air tank in the facility via the compressor is connected. The air hose is connected to the air piping by a coupling, and a hose clamp is used so that the air hose is not further disconnected, so that the air hose is firmly connected. However, if the hose clamp is loosened due to the high air pressure, the tip of the air hose may be blown away. Therefore, in the present embodiment, in order to receive the tip of the detached air hose and prevent it from coming off, on the side surface of the vehicle body 10, as shown in FIG. Is provided.

  Next, the hose retaining metal fitting 30 will be described. FIG. 4 is a perspective view showing the hose retaining bracket 30. FIG. 5 is a plan view of the hose retaining bracket 30 and FIG. 6 is a front view of the hose retaining bracket 30 (viewed from the side of the vehicle body 10). 7 and 8 are side views of the hose retaining metal fitting 30 (a view taken along arrow AA in FIG. 6). FIG. 7 shows the unlocked state, and FIG. 8 shows the locked state. FIG. 4 shows the unlocked state, and FIG. 6 shows the locked state.

  The vehicle body 10 is provided with two air pipes 17 at predetermined positions so as to protrude in the width direction. However, the side part of the vehicle body 10 has upper and lower flange parts 101 and 102, and the air pipe 17 and the hose retaining metal fitting 30 are housed therein. And the air hose 80 is connected to the front-end | tip connection part of the air piping 17 as shown in FIG.4 and FIG.5. The ends of the air pipe 17 and the air hose 80 are connected to each other by couplings 18 and 83, and a hose clamp 85 is provided on the air hose 80 side, which is fastened by tightening bolts and nuts so as to be firmly connected. Yes. In the present embodiment, a case where one air hose 80 is connected to two air pipes 17 is shown.

  The hose retaining metal fitting 30 is configured to prevent the air hose 80 from coming off when the hose clamp 85 or the coupling 83 is hooked. First, the hose retainer 30 is provided with a hose keeper 31 that directly prevents the air hose 80 from coming off. The hose keeper 31 is formed by integrally joining a retaining rod 311 having a U-shaped portion 31 a and a shaft rod 312 so as to straddle two air hoses 80. Both outer sides of the two air pipes 17 are joined in a state where the support bracket 32 stands upright and is orthogonal to the flange portion 102 of the vehicle body 10. Therefore, the shaft 312 of the hose keeper 31 is rotatably attached by a bearing portion 33 provided on the support bracket 32.

  Further, a swing bar 313 is fixed to the shaft bar 312 orthogonally to the end surface thereof, and one end of a tension spring 35 is hooked on the end of the swing bar 313 opposite to the rotating shaft side. Yes. The other end of the tension spring 35 is hooked on the end of a swing bar 361 that is fixed orthogonally to the end of the release lever 36. Accordingly, the hose keeper 31 is urged in the rotational direction by the tension spring 35 with the shaft 312 as the rotational axis. On the other hand, the release lever 36 is a straight bar member as shown in FIG. 5, and a Z-shaped handle portion 36a is formed on the opposite side of the end portion to which the swing bar 361 is fixed. The release lever 36 is rotatably attached by a bearing portion 38 provided on the flange portion 102 of the vehicle body 10.

  As for the release lever 36, the lock plate 37 is joined to two places of the linear part. The lock plate 37 extends horizontally along the flange portion 102 of the vehicle body 10, and the tip portion slightly protrudes from the flange portion 102. On the lower surface of the lock plate 37, a block 371 having an inclined surface is fixed to the tip portion, and an L-shaped plate 372 is fixed with a slight gap. The L-shaped plate 372 hits the flange portion 102 so that the horizontal state of the lock plate 37 can be maintained, and the hose keeper 31 can be inserted into a gap between the L-shaped plate 372 and the block 371.

  The hose keeper 31 can be switched between an upward posture shown in FIG. 7 and a downward posture shown in FIG. 8 is a locked state that prevents the air hose 80 from being pulled out, and the hose keeper 31 is formed with lock portions 31b on both the left and right sides to maintain the locked state. In the downward posture, the U-shaped portion 31a straddles the air hose 80, and the lock portion 31b is hooked on the lock plate 37 so that the swinging is restricted. That is, the lock portion 31 b goes around the lower side of the lock plate 37, slides on the inclined surface of the block 371, hits the L-shaped plate 372, and enters the gap between the block 371 and the L-shaped plate 372.

  The shaft bar 312 constituting the hose keeper 31 has a contact plate 314 fixed to both ends thereof. A stopper 41 made of a rubber material is fixed to the support bracket 32. When the hose keeper 31 is in an upward posture as shown in FIG. 7, the contact plate 314 comes into contact with the stopper 41 by the spring force of the tension spring 35. On the other hand, as shown in FIG. 8, when the hose keeper 31 is in the downward posture, the contact plate 314 is configured to confirm the locked state by pressing the lever 421 of the limit switch 42. Therefore, a notched window 321 is formed in one support bracket 32 (left side in FIG. 4). A limit switch 42 is fixed to the back side of the support bracket 32, and a lever 421 having a rotor at the tip protrudes from the window 321.

  Next, the operation of the hose retaining metal fitting 30 will be described. The large transport vehicle 1 parked at a predetermined position lifts the vehicle body 10 by the air bearing 28, adjusts the deviation, and inserts the fitting pin 21 into the fitting recess 25a as shown in FIG. Positioning is performed. At that time, an air hose 80 is connected to the air pipe 17 and is pulled out by the hose retaining bracket 30. The air pipe 17 and the air hose 80 are connected by couplings and are firmly fastened by a hose clamp 85 on the air hose 80 side. At this time, as shown in FIGS. 4 and 7, the hose retainer 30 has the hose keeper 31 in an upward posture and is pulled counterclockwise by the tension spring 35.

  After the connection of the air hose 80 is completed, the hose keeper 31 is turned to the front lower side (clockwise in FIG. 7) by the operator. At this time, the swing bar 313 is swung by the rotation of the shaft rod 312 and the tension spring 35 is stretched. Therefore, the other swing bar 361 connected to the tension spring 35 is pulled, and the release lever 36 is rotated in the rotational direction. Force acts. Accordingly, the lock plate 37 integral with the release lever 36 is biased downward at the tip thereof, and the L-shaped plate 372 hits the flange portion 102 so that the horizontal posture is maintained. With respect to such a lock plate 37, the lock portion 31 b of the hose keeper 31 goes around from the lower side, passes through the block 371, and is stored in the gap between the L-shaped plate 372. In this way, the hose keeper 31 is in the locked state shown in FIGS.

  If the hose keeper 31 is in the locked state, the lever 421 of the limit switch 42 is pushed by the contact plate 314. For this reason, a detection signal is received from the limit switch 42 by a control device (not shown), which is a permission signal for the floating operation of the air bearing 28. Therefore, when the lock part 31b of the hose keeper 31 is not fitted in the lock plate 37, the air bearing 28 cannot be driven and the compressed air is not supplied.

  The hose retaining metal fitting 30 in which the hose keeper 31 is in a locked state should be attached to the U-shaped portion 31a of the hose keeper 31 even if the hose clamp 85 is loosened and the couplings 18 and 83 are removed by high-pressure air. It is caught and received. At this time, the air hose 80 is strongly pulled out, but the lock portion 31b is locked to the lock plate 37 and the swing of the hose keeper 31 is restricted, so that the impact from the hose clamp 85 is received by the hose keeper 31.

  On the other hand, when the positioning operation of the large transport vehicle 1 using the air bearing 28 is completed as usual and the air hose 80 is removed, the hose keeper 31 is first unlocked. For this purpose, an operator turns the release lever 36 by turning the handle portion 36a. With the rotation of the release lever 36, the distal end side of the lock plate 37 is raised, and the lock portion 31 b of the hose keeper 31 is released from the gap between the block 371 and the L-shaped plate 372. Thereafter, the hose keeper 31 is turned to the front upper side (counterclockwise in FIG. 8) and switched to the upward posture. As a result, the hose clamp 85 is released and the air hose 80 is removed from the air pipe 17. Note that the hose retaining metal fitting 30 is switched to the locked state in which the hose keeper 31 is hooked on the lock plate 37 even when the large transport vehicle 1 is traveling.

  According to the hose retaining bracket 30 of the present embodiment, even if the air hose 80 is detached, the hose keeper 31 receives the hose keeper 31 so that it can be prevented from coming off and danger can be avoided. Such a hose retaining metal fitting 30 only needs to rotate the hose keeper 31 in order to be locked, and even to release the lock, only the hose keeper 31 is rotated by rotating the release lever 36. Very simple. In particular, a tension spring 35 having a relatively strong spring force is used, but the lock state of the two lock plates 37 can be easily and safely removed by rotating the release lever 36. Furthermore, the safety with respect to retaining can be improved by providing the limit switch 42 and detecting the locked state.

  As mentioned above, although embodiment was described about the large sized conveyance vehicle provided with the hose fastening metal fitting which concerns on this invention, this invention is not necessarily limited to this, A various change is possible in the range which does not deviate from the meaning. .

DESCRIPTION OF SYMBOLS 1 Large transport vehicle 10 Car body 17 Air piping 28 Air bearing 30 Hose stopper 31 Hose keeper 35 Tension spring 36 Release lever 37 Lock plate 42 Limit switch 80 Air hose 85 Hose clamp

Claims (3)

A plurality of traveling devices, a vehicle body carrying a large transported object, an air driving means, a connection port of a vehicle body side air pipe for supplying compressed air from the outside to the air driving device, and connected to the connection port In a large transport vehicle equipped with a hose retaining bracket that prevents the air hose from falling off,
The hose retaining metal fitting is
A retaining member that is provided on the air hose and includes a retaining portion that comes into contact with a flange-shaped member and is swingably attached to the vehicle body;
A locking member for locking the retaining member to position the vehicle body;
A lock release member that is formed integrally with the lock member and supports the lock member in a swingable manner;
A hose retaining bracket comprising the retaining member and a spring member connected to the unlocking member to bias the retaining member in a direction to engage the locking member. Large transport vehicle equipped. In the large conveyance vehicle provided with the hose retaining metal fitting according to claim 1,
A large transport vehicle provided with a hose retaining bracket, characterized by comprising state detecting means for detecting that the retaining member is positioned by the lock member. In the large-sized conveyance vehicle provided with the hose retaining metal fitting according to claim 1 or claim 2,
The retaining member is formed integrally by joining a retaining rod having a U-shaped portion so as to straddle the air hose and a shaft rod serving as a rotating shaft, and the shaft is supported with respect to an upstanding support bracket. A rod is attached rotatably,
The lock member is a block having an inclined surface on the lower surface of the front end portion of a horizontally extending plate, and an L-shaped plate fixed with a slight gap from the block.
The unlocking member is a linear bar member having a Z-shaped handle portion formed at one end, and the locking member is joined to the linear portion,
The hose characterized in that the spring member is a tension spring and is connected to rocking bars fixed to an end of the shaft rod of the retaining member and an end of the unlocking member. A large transport vehicle with a retaining bracket.