JP7178130B1 - working device for vehicle - Google Patents

Abstract

An object of the present invention is to provide a working device for a vehicle that can reduce the work burden on a worker when changing a tire. SOLUTION: A traveling rail 5 horizontally extended above a work space in which a vehicle is positioned in a building, a moving body 6 provided movably on the traveling rail 5, and the moving body 6 vertically mounted. an arm 9 having a base end connected to be angularly displaceable around a first axis L1 extending in the direction of the arm 9; It comprises a balancer device 12 having a cable 11 wound around a take-up reel 10, and a work tool 13 on which the cable 11 is hooked and having an operating part driven by compressed air. [Selection diagram] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a working device for a vehicle, which is used for tire changing work of large vehicles such as buses and trucks, and which can suspend and hold a working tool such as an impact wrench.

A large impact wrench weighing about 12 kg to 22 kg, for example, is used to loosen or tighten large diameter wheel bolts and wheel nuts in a tire change operation of a large vehicle. Tire replacement work for large vehicles requires a greater number of wheel bolts, wheel nuts, and tires than tire replacement work for passenger cars, and workers are forced to perform heavy labor to replace tires on large vehicles. In order to reduce such a labor burden on workers, a working tool moving device for a vehicle disclosed in Patent Document 1, for example, is used.

This prior art vehicle work tool moving device includes a movable body that moves along a guide rail provided on the ceiling, and a swing that is pivotally attached at its base end to the movable body that is capable of turning in a horizontal plane. An arm and a linear tool holding member suspended from the tip of the swing arm and having a working tool connected to the tip of the tool are provided. In this prior art, the moving body has a base plate, and the swing arm has a first portion from which the tool holding member hangs down from the front end thereof, and a second portion which protrudes in a direction 180° opposite to the first portion. and the second part is provided with a guide member provided with a ball that rolls on the bottom surface of the substrate.

Another prior art is described as an impact device, for example, in US Pat. This prior art impact device has a rotatable arm that is provided on the ceiling. A wrench part is connected to the tip of the linear body, the wrench part is suspended from the tip part of the arm, a muffler is attached to the arm arranged on the ceiling, and the wrench part connected to the tip of the linear body is mounted. A configuration has been proposed in which an exhaust duct is connected to an exhaust port, the exhaust duct is connected to a muffler attached to an arm, and the linear body and the exhaust duct are covered with an exterior material.

Japanese Patent No. 3621807 Japanese Patent No. 3571495

In each of the prior arts described in Patent Documents 1 and 2, only a working tool such as an impact wrench is connected to the tip of the linear body extending from the balancer. , cleaning equipment, small items such as grease, etc., must be picked up by the worker from a storage location different from the work location. There is a problem that the working efficiency of the replacement work is low. In addition to tire replacement work, when performing various work such as vehicle repair and maintenance, go to a place away from the work place to pick up tools and parts other than one work tool such as an impact wrench, or It is necessary to return it, which causes the worker to interrupt the work, and there is a problem that the work efficiency is lowered.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described technical problems, reduce the work burden on the worker, and provide a working device for a vehicle that can improve work efficiency.

The present invention provides a running rail disposed above a work space in which a vehicle is located in a building,
a moving body movably provided on the running rail;
an arm having a base end connected to the movable body and a free end opposite to the base end, the base end being angularly displaceable around a first axis parallel to the vertical direction;
a balancer device provided at the free end portion and having a take-up reel to which rotational torque is applied in a take-up direction, and a cable wound around the take-up reel;
a work tool to which the rope is hooked and which has an actuating part driven by compressed air ;
The running rail has an upper flange, a lower flange, and a web connecting the upper flange and the lower flange,
The moving body includes a pair of roller units having running rollers supported by the lower flanges, and an anti-vibration unit having push-up rollers arranged between the pair of roller units and contacting the lower flanges from below so as to push them up. and a working device for a vehicle.

Further, the present invention is characterized by including a long columnar body arranged in the vertical direction, the top end of which is fixed to the moving body.

Further, the present invention is characterized by including a mounting table provided below the columnar body for mounting the work tool and the plurality of objects.

Further, the present invention is characterized by including a flexible compressed air supply pipe suspended from the moving body along the cable and supplying the compressed air to the work tool.

The present invention is also characterized by including a cover sheet that covers the cable and the compressed air supply pipe.

Further, according to the present invention, a plurality of arm members connected to each other such that the arms are rotatable about a second axis parallel to the first axis;
and a spring that biases the two arm members connected to each other in the overlapping direction.

Further, according to the present invention, the work tool has an exhaust port for discharging the exhaust of the compressed air,
a flexible exhaust pipe having one end connected to the exhaust port and disposed along the cable;
and a muffler connected to the other end of the exhaust pipe.

Further, the present invention is characterized by including an air filling device provided on the columnar body for filling the tire with compressed air.

The present invention is also characterized by including a pressure setting device connected to the compressed air supply pipe for setting the pressure of the compressed air supplied to the work tool to a predetermined pressure.

Further, the present invention is characterized by including a power supply connection terminal provided on the columnar body and supplied with power from a power source.

The present invention is also characterized by including an air supply pipe joint provided on the columnar body and supplied with compressed air.

Further, the present invention is characterized in that the work tool is an impact wrench.

According to the present invention, the running rail is arranged in the horizontal direction above the work space where the vehicle is located in the building. A moving body is movably supported on the running rail, and the moving body is provided with a base end portion of an arm which is angularly displaceable around a first axis parallel to the vertical direction. A balancer device is provided at the free end of the arm. The balancer device has a take-up reel to which rotational torque is applied in the take-up direction, and a cable wound around the take-up reel. The cable is hooked to a working tool having an operating part for performing operations on the vehicle, for example screwing and unscrewing operations. The running rail has an upper flange, a lower flange, and a web connecting the upper and lower flanges. An anti-vibration unit is provided between the roller units and has a push-up roller contacting the lower flange so as to push it up from below. When compressed air is supplied to the work tool, the working part is driven, and the work such as screw tightening work and screw loosening work can be performed. Therefore, when the operator performs an operation such as pushing or pulling the work tool, the moving body moves along the travel rail in the operated direction, and the arm and the balancer device also move following the operating direction. The operator does not need to interrupt the work and move the arm and balancer device separately from the work tool in order to change the working position of the work tool, for example, during the work, and the work tool, arm and balancer device can be used together with the moving body. It is possible to move in both directions at the same time, thereby reducing the work load on the operator and improving the work efficiency.

According to the present invention, the upper end of the columnar body is fixed to the moving body. be. Therefore, when the operator operates the columnar body by pushing or pulling it, the movable body moves along the travel rail in the direction of the operation, and the working tool can be moved in the same direction. As a result, the worker does not have to go to pick up the work tool located at a place away from the work position during the work, the work interruption time and the number of interruptions can be reduced, and the work efficiency can be further improved.

According to the present invention, the mounting table is provided below the columnar body. Objects such as tools such as wrenches and parts such as bolts and nuts can be placed on the mounting table. Therefore, when the operator pushes or pulls the columnar body, the movable body moves along the travel rail in the operated direction, and the work tool and the mounting table can be moved in the same direction. As a result, the worker does not need to go to pick up tools and parts located away from the working position during the work, the interruption time and the number of interruptions of the work can be reduced, and the work efficiency can be further improved.

According to the present invention, since the compressed air supply pipe hangs down from the moving body along the cable, the compressed air supply pipe is not directly arranged on the floor as in the prior art, and the compressed air is supplied. It is possible to avoid the problem of the pipe becoming entangled with hoses and wires connected to other devices. As a result, the compressed air supply pipe, other hoses, wiring, and the like do not need to be troublesome, and the work load on the operator can be reduced, and the work efficiency can be improved.

According to the present invention, since the cable and the compressed air supply pipe are covered with the cover sheet, the cable and the compressed air supply pipe can be moved together following the work tool. As a result, the cable and the compressed air supply pipe do not move individually due to inertial force during movement, and the operator does not need to work hard to prevent them from coming into contact with the vehicle or other parts. , it does not interfere with the work on the vehicle, it is possible to concentrate on the work, and the work efficiency can be improved.

According to the present invention, since the arm includes a plurality of arm members and a spring, the two arm members connected to each other are overlapped by the spring force of the spring even if the arm is extended by the operation. When the arm, which has been angularly displaced and thereby elongated, returns to a state in which the free end portion is bent in a direction approaching the columnar body when no external force is applied, the arm can be returned to the initial position.

According to the present invention, the work tool has an exhaust port, one end of the exhaust pipe is connected to the exhaust port, and the silencer is connected to the other end of the exhaust pipe. It is possible to suppress the generation of large exhaust noise during operation and prevent the generation of noise.

According to the present invention, since the columnar body is provided with the air filling device, the worker can supply the compressed air to the tire without moving to a distant place during the work using the work tool. It is possible to reduce work interruption time or the number of interruptions and improve work efficiency.

According to the invention, the compressed air supply line is provided with a pressure setting device so that the pressure of the compressed air can be set without having to travel to a remote location in order to set the pressure of the compressed air supplied to the working tool. can be set to a predetermined setting. As a result, working efficiency can be improved.

According to the present invention, since the power supply terminal is provided on the columnar body, even if it becomes necessary to use an electric tool other than the working tool, such as a polishing machine, the electric power of the electric tool can be obtained from the power supply terminal. As a result, it is possible to easily use a separate device, improve convenience, and improve work efficiency.

According to the present invention, since the air supply joint is provided on the columnar body, even if it becomes necessary to use an air injection device such as an air gun other than the work tool, the compressed air can be used as the air pressure source from the air supply joint. As a result, it is possible to easily use a separate device, improve convenience, and improve work efficiency.

According to the present invention, since the work tool is an impact wrench, the impact wrench can be used to tighten and loosen wheel bolts, wheel nuts, and the like even when changing tires of a vehicle. The operator does not have to go to a distant place to pick up the tools and parts, so that the work load on the worker can be reduced and the work efficiency can be improved.

1 is a perspective view showing the overall structure of a working device 1 for a vehicle according to one embodiment of the present invention; FIG. 1 is a perspective view showing an appearance of a working device 1 for a vehicle; FIG. Fig. 2 is a cross-sectional view of the vehicle working device 1 as viewed from the side; FIG. 2 is a cross-sectional view of the vehicle working device 1 as seen from behind; FIG. 2 is a plan view of the vehicle working device 1 viewed from above; 4 is a cross-sectional view of a running rail 5 and a moving body 6; FIG. FIG. 4 is a perspective view of the mobile body 6 as viewed obliquely from above; 4 is a cross-sectional view showing a simplified configuration of the moving body 6; FIG. FIG. 3 is a perspective view showing the configuration of a fixture 84 and a connector 87 that connect a guide rail 86 to a running rail 5; 8 is an exploded perspective view showing how the guide rail 86 is attached to the connector 87. FIG. 4 is a front view of the columnar body 7 viewed from one side; FIG. FIG. 3 is a perspective view showing a state where a work tool 13 and the like are attached to an arm 9; FIG. 10 is a plan view showing an extension and contraction operation of the arm 9; 4 is a plan view for explaining the range of movement of arm 9. FIG. 4 is a side view showing an extended state of an arm 9; FIG. 4 is a side view showing a contracted state of the arm 9; FIG. 3 is a cross-sectional view showing the internal structure of the balancer device 12; FIG. 3 is a perspective view showing the appearance of the muffler 19. FIG. 3 is a side view showing the appearance of the cord reel 140. FIG. 2 is a front view showing an air filling device 150; FIG. FIG. 4 is a side view showing the appearance of a hose reel 260; FIG. 4 is a side view showing a regulator device 170; FIG. 2 is an enlarged front view of a portion of a columnar body 7 where an air coupler 180 and an outlet 181 are provided; FIG. 4 is a side view showing a mounting state of the mounting table 200 to the columnar body 7; 2 is a side view of a mounting table 200; FIG. FIG. 3 is a perspective view of the mounting table 200 as viewed obliquely from above;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a working device for a vehicle according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the overall structure of a working device 1 for a vehicle according to one embodiment of the present invention. FIG. 2 is a perspective view showing the appearance of the vehicle working device 1. As shown in FIG. FIG. 3 is a cross-sectional view of the vehicle working device 1 viewed from the side. FIG. 4 is a cross-sectional view of the vehicle working device 1 viewed from the left side of FIG. FIG. 5 is a plan view of the vehicle working device 1 as seen from above. In this embodiment, for convenience of explanation, an orthogonal three-axis X, Y, Z coordinate system is assumed, and two vehicles V1, V2 (collectively abbreviated as "vehicles V") are arranged along their longitudinal axes. It is assumed that the vehicle is parked on a substantially horizontal floor 3 in a building such as a factory so that the direction is parallel to the X axis. In this embodiment, the longitudinal direction of the vehicle V is parallel to the axle.

In this embodiment, each vehicle V has two front wheels and eight rear wheels, a vehicle length L in the X direction of 12 m, a vehicle width B in the Z direction of 2.5 m, and a vehicle height H1 in the Y direction of 3 m. It is a large truck of .5m. In another embodiment of the present invention, a large bus, a large work vehicle, or the like may be used in place of the large truck, and these large trucks, large buses, and large work vehicles are collectively referred to as large vehicles. Large vehicles have more tires (for example, 10) than ordinary vehicles such as ordinary passenger cars, and wheel nuts and wheel bolts have larger diameters than ordinary vehicles. An impact wrench is used as the working tool 13 . The weight of this impact wrench is as large as about 12 kg to 22 kg, and in the present embodiment, it is used in a state of being suspended from the vehicle working apparatus 1 in order to reduce the work burden on the operator such as carrying and holding the work tool 13. configured to be able to

As shown in FIG. 5, the vehicle work device 1 is configured to have four walls 3a, 3b, 3c, and 3d of a building such as a vehicle repair shop, and one of the walls 3a, 3b, 3c, and 3d in the Z direction. A plurality of beams 4 (four in this embodiment) installed in parallel across two opposing walls 3a and 3c, and two beams 4 fixed in parallel to the lower part of each beam 4 and brought in for tire replacement, etc. A plurality of (4 in this embodiment) running rails 5 extending along the longitudinal direction of each vehicle V, and each running rail 5 is movably supported. and a plurality (four in this embodiment) of tire changing facilities 2.

An entrance/exit 6a for each vehicle V is provided in one wall 3d of the walls 3b and 3d positioned between the opposite ends of the two walls 3a and 3c facing each other. Each beam 4 is made of structural steel such as I-beam steel. A load received from each running rail 5 is transmitted through each beam 4 to each wall 3a, 3c and supported. Each vehicle V is stopped with a first distance L101 in the Z direction. This first distance L101 is, for example, 6.5 m. Each running rail 5 corresponds to a Z-direction spacing when viewed from above the central axis of each vehicle V, and the Z-direction spacing between each pair of two running rails 5 is set to a second distance L102. The second distance L102 is, for example, 4.90m. In FIG. 5, the inner imaginary line m1 forming a substantially elliptical or closed loop shape between the vehicles V indicates the actual operation range of the free end of the arm 9 provided for each traveling rail 5, and the outer imaginary line m1. Line m2 indicates the maximum range of movement of the free end of arm 9, sufficient to move tire changing station 2 to the appropriate position for tire changing operations on all wheels of each vehicle V. It is configured.

As shown in FIG. 2, the vehicle work device 1 includes a plurality of travel rails 5 described above, a plurality of moving bodies 6 supported on each travel rail 5 so as to be movable along the travel rails 5, and a movable body 6. A pair of arms 9 whose base ends are connected to the body 6 so as to be angularly displaceable around a vertically extending first axis L11; A balancer device 12 having a take-up reel 10 to which a rotational torque is applied in the take-up direction around the axis L22 and a cable 11 wound around the take-up reel 10, and a balancer device 12, where the cable 11 is hooked and compressed by compressed air. A work tool 13 having a driving operating part and a flexible compressed air supply pipe 15 extending from the travel rail 5 and connected to the work tool 13 for supplying compressed air to the work tool 13 are provided.

In another embodiment of the present invention, a vehicle work device 1 includes a long columnar body 7 fixed at its upper end to a movable body 6 and extending downward, and provided at the bottom of the columnar body 7, a work tool 13 and and a mounting table 200 for mounting a plurality of objects. Each arm 9 has a plurality of arm members 9a, 9b, 9c that are rotatably connected about second axes L2, L3, L4 parallel to the first axis L11, as shown in FIG. 12, which will be described later. , 9d. The proximal end of the arm 9 may be directly connected to the moving body 6 when not connected to the columnar body 7 . The columnar body 7 is interlocked with the moving body 6 and used when more equipment is stably moved.

FIG. 6 is a cross-sectional view of the running rail 5 and the moving body 6, FIG. 7 is a perspective view of the moving body 6 seen obliquely from above, and FIG. is. The running rail 5 is made of structural steel such as I-shaped steel, and has an upper flange 51 , a lower flange 52 , and a web 53 connecting the upper flange 51 and the lower flange 52 . The upper flange 51 is fixed to the beam 4 by joining members such as bolts and nuts, and the lower flange 52 movably supports the moving body 6 . Such a running rail 5 extends horizontally from the floor 3 vertically to a height H2 as shown in FIG. Height H2 is, for example, 5.2 m. As shown in FIG. 7, the moving body 6 includes a base 61 made of cylindrical steel having a square cross section and a pair of roller units 63 fixed on upper flanges 62 at both ends of the base 61 in the longitudinal direction. , 64 and an anti-vibration unit 65 fixed on the upper flange 62 in the longitudinal center of the base body 61 .

Each roller unit 63, 64 is connected to a plate-like base 66 fixed to the upper flange 62 by welding or the like, a pin 67 provided on the base 66 and having an axis L13 parallel to the Z direction, and the pin 67. It has a bracket 68 and a pair of running rollers 69 rotatably provided on the bracket 68 about an axis parallel to the axis L13. Each running roller 69 is arranged symmetrically on both sides of the web 53 of the lower flange 52 of the running rail 5 .

Such roller units 63 and 64 are provided on the upper flange 62 symmetrically with respect to a vertical imaginary plane that bisects the running rail 5 horizontally in the sectional view of FIG. 6, and are similarly configured. The anti-vibration unit 65 consists of a plate-like base 70 fixed to the upper flange 62 by welding or screw members such as bolts and nuts, and a pair of cylindrical columns having an axis in the Z direction and provided vertically on the base 70. a plate-like bracket 74 having a pair of guide slots 73 in which the guide protrusions 71 are movably fitted and extending parallel to the Y direction; a push-up roller 75 rotatably provided around the axis of the bracket 74; a mounting plate 76 having an L-shaped cross section fixed vertically to the bracket 74; 77 and . By screwing or retracting the adjustment bolt 77, the bracket 74 is moved vertically (in the Y direction) while being guided by the long guide hole 73, thereby adjusting the pushing force exerted by each push-up roller 75 on the lower flange 52. be able to. The amount of displacement of the moving body 6 in the Z direction can be adjusted by the pushing-up force of the pushing-up roller 75 , and the moving body 6 can be adjusted to linearly move along the running rail 5 .

The base 61 has an upper flange 62 , a lower flange 79 , and a pair of side walls 80 , 81 perpendicular to both widthwise end portions of the upper flange 62 and the lower flange 79 . A through hole 82 is formed in the lower flange 79 for inserting a signal line, a power line, a compressed air supply pipe, etc. into the columnar body 7 . The upper end of the columnar body 7 is connected to the base 61 so as to surround the through hole 82 . A bracket 83 made of, for example, a substantially inverted trapezoidal shaped steel material is joined to the upper end of the columnar body 7 by welding or the like and fixed to the lower flange 79 of the base body 61 . A through hole for the pipe 184 is formed in one side wall 81 of the base body 61, so that a reinforcing plate 85 is joined by welding, screwing, or the like for reinforcement.

The pulled-out portion of the cable 11 pulled out from the balancer device 12 and the compressed air supply pipe 15 are arranged side by side and covered with a strip-shaped cover sheet 17a as shown in FIG. The cover sheet 17a is made of a synthetic resin sheet, preferably a planar fastener. By using the planar fastener, both ends in the width direction can be separated and opened at any position in the longitudinal direction, and it becomes possible to put in and take out pipes and electric wires, thereby improving usability.

FIG. 9 is a perspective view showing the configuration of the fixture 84 and the connector 87 that connect the guide rail 86 to the running rail 5, and FIG. 10 is an exploded perspective view showing how the guide rail 86 is attached to the connector 87. is. A signal line, a power line, a compressed air supply pipe 15, etc. are housed in a chain-like holder 90 (see FIG. 6), also called a cable bear, on the running rail 5 by means of a fixture 84 and a connector 87. Supporting guide rails 86 are mounted.

A guide rail 86 is connected to the running rail 5 by a connecting tool 87 in order to follow the movement of the columnar body 7 and stably hold the signal line, the power line, the compressed air supply pipe 15 and the like. The connector 87 includes a substantially T-shaped top plate 88 and a support plate 89 having a substantially L-shaped cross section perpendicular to the longitudinal direction (X direction) of the guide rail 86 when viewed from above in FIG. , and a pair of fixtures 84 for fixing the top plate 88 to the upper flange 51 of the running rail 5 .

The top plate 88 has a rectangular base 88a in plan view, and a pair of projections 88b projecting from one longitudinal end of the base 88a to both sides in the width direction perpendicular to the longitudinal direction. The support plate 89 includes a wall portion 89a that has a rectangular shape when viewed from the side, a bent portion 89b that is bent at right angles to one end of the wall portion 89a in the longitudinal direction, and a bent portion 89b that extends at right angles to the other end of the wall portion 89a in the longitudinal direction. It has a bottom plate portion 89c that is bent and connected to the bottom plate portion 89c. These top plate 88 and support plate 89 are made of structural steel plates, for example. A guide rail 86 is mounted on the bottom plate portion 89c. The bent portion 89b and the top plate 88 are fastened with bolts 193 and nuts 192. As shown in FIG.

The guide rail 86 is fixed to the bottom plate portion 89c in parallel to one side of the running rail 5 with a certain interval by screw members such as bolts and nuts.

As shown in FIG. 6, the guide rail 86 includes a strip-shaped bottom plate 91, a pair of side plates 92a and 92b vertically fixed on both sides of the bottom plate 91, and fixed to the bottom plate 91 at intervals in the longitudinal direction. and has a plurality of ribs 93 joining the side plates 92 a and 92 b and the bottom plate 91 . Assuming that the holder 90 is slightly displaced in the direction (Z direction) perpendicular to the direction (X direction) in which the guide rail 86 extends when the holder 90 that has separated from the guide rail 86 is about to return onto the bottom plate 91, are guided between the side plates 92a and 92b by the guide portions 96a and 96b, and can be reliably returned onto the bottom plate 91. As shown in FIG.

The fixture 84 has a pair of fitting pieces 84a and 84b, a connecting bolt 84c passing through the fitting pieces 84a and 84b, and tightening nuts 84d and 84e screwed onto both ends of the connecting bolt 84c. Each of the fitting pieces 84a, 84b has fitting grooves 84a1, 84b1 in which the upper flange 51 of the running rail 5 and the projection 88b of the top plate 88 are fitted with each other while overlapping each other in the thickness direction.

Each of the fitting pieces 84a, 84b has two inner surfaces 84a2, 84a3; It inclines from the opening toward the bottom of the groove in a direction approaching the other inner surfaces 84b3, 84b3. When the upper flange 51 and the protrusion 88b are fitted into the fitting grooves 84a1 and 84b1, the upper flange 51 and the protrusion 88b abut between the inner surfaces 84a2 and 84a3; As the fitting pieces 84a and 84b are tightened, the fitting pieces 84a and 84b move toward each other, and the upper flange 51 and the protrusion 88b are clamped by the inner surfaces 84a2 and 84a3; 84b2 and 84b3. are fixed, and the top plate 88 is thus fixed to the upper flange 51 .

A bent portion 89b of the support plate 89 is fixed to the other longitudinal end of the base portion 88a of the top plate 88 by a plurality of bolts 193 and a plurality of nuts 192, and thus the support plate 89 is connected to the top plate 88. A guide rail 86 is connected to the bottom plate portion 89 c of the support plate 89 with a plurality of bolts 92 . Each of the guide plates 94a and 94b has a strip-shaped base portion 94a1 and 94b1, and guide portions 94a2 and 94b2 that are bent and connected to the free end portions of the base portions 94a1 and 94b1. Each base portion 94a1 is fixed to the bottom plate 91 with a screw member such as a bolt at regular intervals in the longitudinal direction. Each of the guide plates 94a and 94b is, for example, 5° or more and 30° or less as it separates from each of the bases 94a1 and 94b1 in the direction perpendicular to the bottom plate 91 with respect to each imaginary plane including the opposing inner surfaces of each of the bases 94a1 and 94b1. Inclined.

Portions such as signal lines, power lines, and compressed air supply pipes, which are brought out (above) from the guide plates 94a and 94b by the guide plates 94a and 94b, are guided between the bases 94a1 and 94b1. can be restored. These signal lines, power lines, compressed air supply pipes, and the like are housed, for example, in synthetic resin chain-like protectors 90, also called cable bears, to prevent the occurrence of entanglement or the like.

FIG. 11 is a front view of the columnar body 7 viewed from one side, FIG. 12 is a perspective view showing how the work tool 13 and the like are attached to the arm 9, and FIG. 14 is a plan view for explaining the movement range of the arm 9, FIG. 15A is a side view showing the extended state of the arm 9, and FIG. 15B shows the contracted state of the arm 9. It is a side view. As shown in FIG. 14, the free end of the arm 9 exhibits a turning trajectory with a maximum turning radius R2, and reference character R1 denotes the turning radius centered on the first axis L11 of the free end during actual use. , the maximum turning radius R2 is, for example, 1080 mm, and the actual use turning radius R1 is, for example, 960 mm. The aforementioned actual movable range m1 is a workable range when the movable body 6 moves along the travel rail 5 with the arm 9 extended to the actual use turning radius R1, and the aforementioned maximum operational range m2 is , is the workable range when the moving body 6 moves along the travel rail 5 with the arm 9 extended to the maximum turning radius R2.

A first shaft joint J1 is provided on one side of the columnar body 7 to support the base end of the arm 9, that is, the base end of the first arm member 9a, so as to be angularly displaceable around the first axis L1. A second joint J2 is provided at the free end of the first arm member 9a, and the second joint J2 allows one end of the second arm member 9b to be angularly displaced around a second axis L2 parallel to the first axis L1. concatenated.

A third joint J3 is provided at the other end of the second arm member 9b, and the third joint J3 allows the other end of the third arm member 9c to rotate about a third axis L3 parallel to the first axis L11. They are connected so as to be angularly displaceable. A fourth joint J4 is provided at one end of the third arm member 9c, and the other end of the fourth arm member 9d can be freely angularly displaced around a fourth axis L4 parallel to the first axis L11 by the fourth joint J4. are concatenated. One end of the fourth arm member 9d corresponds to the free end of the arm 9, to which the locking ring member 100 is fixed. A work tool 13 is hooked to the balancer device 12 via a cable 101 . A hanger 130 for hooking the air supply hose 103 is provided on the lower surface of the third arm member 9c.

One end of a first tension spring 121, which is a spring, is locked to a portion of the second arm member 9b closer to the third joint J3, and a portion of the third arm member 9c closer to the third joint J3 is The other end of the first tension spring 121 is locked. One end of a second tension spring 122, which is a spring, is locked to a portion of the third arm member 9c near the fourth shaft joint J4, and a second tension spring 122 is locked to a portion of the fourth arm member 9d near the fourth shaft joint J4. 2 The other end of the tension spring 122 is locked. The arm 9 pulled out from the columnar body 7 by the first tension spring 121 and the second tension spring 122 as shown in phantom lines in FIG. The ends are pulled back into a proximal retracted position and are prevented from remaining extended when not in use, as shown in phantom lines.

In order to supply working compressed air to the work tool 13, a coupling 102, which is a quick joint to which compressed air is led from a compressed air source (not shown), is provided on one side of the columnar body 7. is detachably connected to a plug 104 provided at one end of an air supply hose 103, and a coupling 105 provided at the other end of the air supply hose 103 is connected to an air supply plug (not shown) 108 of the work tool 13. It is detachably connected.

The work tool 13 has an exhaust port 106, a grip portion 107, the above-described air supply plug 108, an output shaft 109, and an eyebolt 210. A suitable tool is connected to the tip of the output shaft 109, Loosening or tightening operations such as bolts and nuts can be performed. A snap hook 211 is hooked on the eyebolt 210 , and a hook portion 212 on one end side of the cable 201 is hooked on the snap hook 211 . The cable 201 has a second hook portion 112 on the other end side, and the second hook portion 112 is hooked on a hook portion provided at the tip portion of the cable 11 of the balancer device 12 so that the work tool 13 can be attached. It is suspended from the balancer device 12 .

FIG. 16 is a cross-sectional view showing the internal structure of the balancer device 12. As shown in FIG. The balancer device 12 includes a spiral groove 131 containing a wire rope or other cable 11, a conical rotary drum 133 rotatable about a spindle shaft 132, and the cable 11 wound around the rotary drum 133. It includes a winding spring 134 that provides a take-up force (winding torque), and a casing 135 that houses the rotating drum 133, the spindle shaft 132, the winding spring 134 and the cable 11 together with the winding spring 134. The casing 135 has a body portion 135a and a cover portion 135b detachably attached to the body portion 135a. The cover portion 135b is detachably fixed to the body portion 135a by bolts 136. As shown in FIG.

Such a balancer device 12 has a load reduction capacity of 9.0 kg to 22.0 kg when the stroke of the cable 11 is in the range of 1.3 m to 1.5 m. Since the weight of the working tool 13 can be offset by hooking the working tool 13 to it, the operator does not need to support the working tool, and the burden on the operator can be reduced.

FIG. 17 is a perspective view showing the appearance of the muffler 19. As shown in FIG. The work tool 13 has an exhaust port 108 , one end of a flexible exhaust pipe 110 is connected to the exhaust port 108 , and the muffler 19 is connected to the end of the exhaust pipe 110 . The silencer 19 can suppress impact noise generated when the work tool 13 is operated. The muffler 19 is commercially available, for example, from SMC Corporation under the trade name of "high noise muffling silencer ANA1-06". By connecting such a muffler 19 to one end of the exhaust pipe 110, the exhaust sound during operation of the work tool 13 is attenuated to 85 dB or less when the exhaust sound is 99 dB without the muffler 19. , the sound pressure can be reduced to about 1/5, and the generation of noise can be suppressed.

FIG. 18 is a side view showing the appearance of the cord reel 140. FIG. A cord reel 140 is provided by a bracket 111 on one side surface of the columnar body 7 . A power cable 141 supplied with power of AC 100 V is wound around the cord reel 140 , and a connector 142 is connected to the tip of the power cable 141 . By connecting the connector 142 to a power tool other than the work tool 13, the power can be supplied to the power tool. As a result, the operator can easily use the power tool without interrupting the work and moving to a distant place.

FIG. 19 is a front view showing the air filling device 150. FIG. An air filling device 150 is provided on one side surface of the columnar body 7 . The air filling device 150 includes a pressure display section 151, a first pressure unit display lamp 152, a second pressure unit display lamp 153, a timer mode display lamp 154, a puncture mode display lamp 155, a flat tire filling mode display lamp 156, and a large volume filling. It has a mode 166, a mode switching button 157, an exhaust button 158, an addition (+) button 159, a start button 160a, a skip button 161, a stop button 162, a subtraction (-) button 163, a check button 164, and a regulator 165.

The pressure display unit 151 is composed of, for example, a liquid crystal display element, and displays the pressure of the filling air in the tire numerically. The unit of this numerical value is "kPa" displayed on the first pressure unit display lamp 152 or "HPa" displayed on the second pressure unit display lamp 153. or can be clearly recognized by 153. As described above, the air filling device 150 has four tire filling modes: timer mode, puncture mode, flat tire filling (LT-Hi) mode, and large volume filling mode. A mode switching button 157 is provided for switching each mode. By pressing the mode switching button 157, any one of the timer mode, the puncture mode, the LT-Hi mode, and the high pressure filling mode can be sequentially switched and selected. The switched mode can be clearly recognized by lighting any one of timer mode indicator lamp 154, puncture mode indicator lamp 155, LT-Hi mode indicator lamp 156, and OR mode selection lamp 166. FIG.

When the timer mode display lamp 154 is turned on, the timer mode is set, and this mode is used to wait for a certain period of time when inflating a punctured tire or the like. In this mode, the timer starts at the same time as the filling is finished, and the time is displayed and the buzzer sounds continuously at the end. The elapsed time is initially set to, for example, 5 minutes, but can be set to any time. When the tire puncture mode display lamp 155 is lit, the puncture mode is set and can be used to check the location of the tire puncture. The set pressure in this mode is initially set to 100 kPa, and is configured so that it cannot be easily changed to any other set pressure.

When the LT-Hi mode display lamp 156 is lit, it indicates that the LT-Hi mode is set, and can be used when filling a flat tire with a high pressure of 800 kPa or higher. If an error occurs in the normal mode, switching to the LT-Hi mode enables smooth air filling. When the large-capacity filling mode display lamp 161b is on, the large-capacity filling mode is set, and is used when filling a tire with a large internal capacity such as a large-capacity filling tire with air. Smooth air filling is possible by selecting this mode when an error occurs in the normal mode and filling is not possible.

The air filling device 150 incorporates storage devices such as a CPU (Central Processing Unit) and RAM (Random Access Memory) and ROM (Read Only Memory). It is configured so that each driving mode can be selected to inflate the tire.

FIG. 20 is a side view showing the appearance of the hose reel 260. As shown in FIG. A hose reel 260 is provided on the columnar body 7 . Compressed air of 150 kPa to 1200 kPa, for example, is supplied to the hose reel 260 in order to use a work tool driven by compressed air pressure, such as a drill and a grinder, in addition to the work tool 13 . Hose reel 260 has reel body 201 , hose 202 wound around reel body 201 , connector 203 connected to the tip of hose 202 , and gripper 204 . By providing such a hose reel 260 on the columnar body 7, the connector 203 can be connected to the other work tool driven by the compressed air and used immediately.

FIG. 21 is a side view showing the regulator device 170. FIG. The regulator device 170 has an on-off valve 171 interposed in the compressed air supply pipe 15 and a regulator body 172. The regulator body 172 has an operation knob 173 and a pressure meter 174, and the operation knob 173 is rotated. By adjusting the supply pressure of the compressed air, the desired pressure can be set. The set pressure is displayed on pressure meter 174 . In an emergency or the like, by angularly displacing the operation grip 175 of the on-off valve 171, the supply of compressed air can be cut off. With such a regulator device 170, the operator can adjust the set pressure of the compressed air without moving to a distant place.

FIG. 22 is an enlarged front view of a portion of the columnar body 7 where the air coupler 180 and the outlet 181 are provided. The columnar body 7 has two air couplers 180 which are pipe joints to which compressed air of 150 kPa to 1200 kPa is supplied, an outlet 181 which is a power supply terminal to which, for example, AC 100 V is supplied, and operation grips 182a and 182b. is provided. Air coupler 180 comprises a quick-fit coupling and can be used to supply compressed air to other pneumatically driven work equipment other than work tool 13 . The outlet 181 can also be used as a power supply for power-driven work equipment other than the work tool 13 . These air couplers 180 and outlets 181 allow workers to easily use other devices, improving convenience.

FIG. 23 is a side view showing how the mounting table 200 is attached to the columnar body 7, FIG. 24 is a side view of the mounting table 200, and FIG. . A mounting table 200 having a mounting surface 200a for mounting an article such as a wheel bolt, a wheel nut, or a grease container is provided below the columnar body 7 . The mounting table 200 has two lever cases 213 and 214 for inserting and accommodating tools such as levers used in tire changing work, and two lights 205 and 206 provided on the lower surface of the mounting table 200 . A guide pipe 207 through which the columnar body 7 is inserted and a rod-like member 208 inserted into the guide pipe 207 in the direction perpendicular to the axis are provided in the central portion of the mounting table 200 in plan view. For example, 5 to 10 through-holes are formed in the lower portion of the columnar body 7 in a direction parallel to the axis of the columnar body 7 at intervals of about 20 mm to 30 mm. The operator can hold the mounting table 200 at the desired height position by placing the mounting table 200 at the desired height position and inserting the rod-shaped member 208 into the through hole at the desired height position. configured as

According to this embodiment, the running rail 5 is arranged to extend horizontally above the working space where the vehicles V1 and V2 are located in the building. A moving body 6 is movably supported on the running rail 5 , and the top end of a columnar body 7 is fixed to the moving body 6 . In the vicinity of the upper end of the columnar body 7, the base end of the arm 9 is provided so as to be angularly displaceable around a first axis L11 extending in the vertical direction. A balancer device 12 is provided at the free end of the arm 9 . The balancer device 12 has a take-up reel 10 to which rotational torque is applied in the take-up direction, and a cable 11 wound around the take-up reel 10 . The cable 11 is hooked to a work tool 13 having an operating part for performing work on the vehicle V, such as screwing and unscrewing. When compressed air is supplied to the work tool 13, the working part is driven, and the work such as screw tightening work and screw loosening work can be performed. A work tool 13 is placed on the work tool 13 and objects such as a wrench used for work and parts such as bolts and nuts are placed on the work tool 13 on the work tool 13 . can be loaded. Therefore, when the operator pushes or pulls the columnar body 7, for example, the movable body 6 moves along the travel rail 5 in the operated direction, and the work tool 13 and the mounting table 200 also follow the operated direction. Therefore, the worker can reduce the number of times of retrieving tools and parts located far away from the work position during the work, and can reduce the work interruption time or the number of interruptions. As a result, the work load on the worker can be reduced, and the work efficiency of the tire changing work can be improved. In other embodiments of the present invention, the arm 9 is not limited to being provided near the upper end of the columnar body 7, and may be provided directly on the moving body 6 by a connecting member such as a bracket.

According to this embodiment, since the compressed air supply pipe 15 hangs down along the cable 11 from the moving body 6, the compressed air supply pipe is not directly arranged on the floor as in the prior art. , the compressed air supply pipe 15 can be prevented from tangling with hoses and wires connected to other devices. As a result, the compressed air supply pipe 15, other hoses, wiring, and the like do not need to be troublesome, and the work load on the operator can be reduced, and the work efficiency can be improved.

According to this embodiment, since the cable 11 and the compressed air supply pipe 15 are covered with the cover sheet 17a, the cable 11 and the compressed air supply pipe 15 are moved together following the work tool 13. be able to. Due to this difference in inertial force during movement, the cable 11 and the compressed air supply pipe 15 may move individually and contact the vehicle V and other parts. It is possible to concentrate on the work without disturbing the work and improve the work efficiency.

According to this embodiment, the arm 9 includes a plurality of arm members 9a, 9b, 9c, 9d and the tension springs 121, 122. By the spring force, the two arm members 9a, 9b, 9c, 9d that are connected to each other are angularly displaced so as to overlap each other. The end portion returns to the bent state in the direction approaching the columnar body 7 and can be returned to the initial position.

According to this embodiment, the work tool 13 has an exhaust port portion 17, one end portion of an exhaust pipe 18 is connected to the exhaust port portion 17, and a silencer 19 is attached to the other end portion of the exhaust pipe 18. Since it is connected, it is possible to suppress the generation of a large exhaust sound when the work tool 13 is operated and prevent the generation of noise.

According to this embodiment, since the columnar body 7 is provided with the air filling device 150, the worker can supply the compressed air to the tire without moving during the work using the work tool 13. It is possible to reduce work interruption time or the number of interruptions and improve work efficiency.

According to this embodiment, since the pressure setting device 21 is provided in the compressed air supply pipe 15, in order to set the pressure of the compressed air supplied to the work tool 13, the compressed air can be set without moving to a remote location. can be set to a desired predetermined setting. As a result, working efficiency can be improved.

According to this embodiment, since the outlet 181 is provided in the columnar body 7, even if it becomes necessary to use an electric tool such as a polishing machine other than the work tool 13 in operation, the electric power of the electric tool can be supplied from the outlet 181. As a result, it is possible to easily use a separate device, improve convenience, and improve work efficiency.

According to this embodiment, since the air coupler 180 is provided on the columnar body 7, even if it becomes necessary to use a device other than the work tool 13, such as a polishing device, which is driven by compressed air, the compressed air can be supplied from the air coupler 180. It can be obtained as a source, which makes it possible to easily use a separate device, improve convenience, and improve work efficiency.

According to the present embodiment, since the work tool 13 is an impact wrench, even when changing tires of the vehicle V, the impact wrench can be used to tighten and loosen wheel bolts and wheel nuts. This eliminates the need for the worker to go to a distant place to pick up tools and parts, thereby reducing the work burden on the worker and improving work efficiency.

REFERENCE SIGNS LIST 1 vehicle work device 2 tire changing facility V1, V2 vehicle 3a, 3b, 3c, 3d wall 4 beam 5 running rail 6 moving body 7 columnar body 8 arm L1 first axis L2 second axis 9a, 9b, 9c, 9d arm Member L3 Third axis 10 Take-up reel 11 Cable 12 Balancer device 13 Work tool 15 Compressed air supply pipe 16 Planar fastener member 17 Exhaust part 18 Exhaust pipe 19 Silencer 20 Filling device 21 Pressure setting device 22 Power supply terminal 23 Pipe Coupling 16 Rotating drum 17 Torque spring

18a, 18b casing 51 upper flange 52 lower flange 53 web 61 base 62 upper flange 63, 64 roller unit 65 anti-vibration unit 67 pin 70 base 71 guide protrusion 72 guide plate 73 guide slot 74 bracket 75 push-up roller 76 mounting plate 77 adjustment bolt 77
79 lower flange 80, 81 side wall 82 through hole 83 mounting plate 84 fixture 85 reinforcing plate 86 guide rail 87 connector 88 top plate 89 support plate 90 clip L3 axis 68 bracket 69 running roller L101 first distance L102 second distance

Claims (12)

A running rail arranged above the work space where the vehicle is located in the building,
a moving body movably provided on the running rail;
an arm having a base end connected to the movable body and a free end opposite to the base end, the base end being angularly displaceable around a first axis parallel to the vertical direction;
a balancer device provided at the free end portion and having a take-up reel to which rotational torque is applied in a take-up direction, and a cable wound around the take-up reel;
a work tool to which the rope is hooked and which has an actuating part driven by compressed air ;
The running rail has an upper flange, a lower flange, and a web connecting the upper flange and the lower flange,
The moving body includes a pair of roller units having running rollers supported by the lower flanges, and an anti-vibration unit having push-up rollers arranged between the pair of roller units and contacting the lower flanges from below so as to push them up. A working device for a vehicle, comprising : 2. The working device for a vehicle according to claim 1, further comprising a long columnar body having an upper end fixed to said movable body and arranged in said vertical direction. 3. The working device for a vehicle according to claim 2, further comprising a mounting table provided at a lower portion of said columnar body for mounting said working tool and a plurality of objects. 4. The work tool according to any one of claims 1 to 3, further comprising a flexible compressed air supply pipe that hangs from the moving body along the cable and supplies the compressed air to the work tool. vehicle working device. 5. The working device for a vehicle according to claim 4, further comprising a cover sheet that covers said cable and said compressed air supply pipe. the arm includes a plurality of arm members connected so as to be angularly displaceable about a second axis parallel to the first axis;
The vehicle working device according to any one of claims 1 to 5, further comprising a spring that biases the two arm members connected to each other in a direction in which the two arm members overlap each other. . a flexible exhaust pipe having one end connected to an exhaust port of the work tool and arranged along the cable;
and a muffler connected to the other end of the exhaust pipe. 3. The working device for a vehicle according to claim 2 , further comprising an air filling device provided on said columnar body for filling compressed air into a tire. 5. The working device for a vehicle according to claim 4 , further comprising a pressure setting device connected to said compressed air supply pipe for setting the pressure of the compressed air supplied to said working tool to a predetermined pressure. The vehicle work according to claim 2 or any one of claims 3 to 9 citing claim 2, characterized in that it includes a power supply connection terminal provided on the columnar body and supplied with power from a power source. Device. The vehicular use according to claim 2 or any one of claims 3 to 10 citing claim 2, further comprising an air supply pipe joint provided on the columnar body and supplied with compressed air. working device. The working device for a vehicle according to any one of claims 1 to 11, wherein the working tool is an impact wrench.

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