JPH0671362U - Cylinder carrier - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a cylinder transporter that rationalizes the loading and unloading of cylinders and allows stable and safe traveling even on steps, stairs, etc. without the risk of falls or collisions. [Structure] The rails 12 of the machine body 35 are provided with receiving holes 12a, 12b, 12c into / from which stoppers 13 are inserted / removed at predetermined intervals in the length direction, and are used for traveling on level ground, traveling on steps or stairs, and unloading cylinders, respectively. The carrier 9 is connected to the carrier support frame 11 that slides along the rail 12 by a predetermined distance by the rotating shaft 10, and the hook 9 and the receiving metal 25 engage with each other to restrain the carrier 9 in the laid-down position.
The trackless traveling device 22 is provided on the left and right of the vehicle, the traveling device 22 is driven by the DC motor 16 via the three-speed transmission 19, and the side clutch lever 4 is used to clutch the traveling device 22 on the required side when the vehicle body 35 turns. The safety bumper sensor 38, the slide position detection sensor 39, and the tilt sensor 4 in the drive control unit of the DC motor 16.
2. A security system including a latch sensor 43 and a runaway prevention sensor 44 is incorporated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cylinder carrier used when replacing a propane gas cylinder or the like deployed in a general household.

[0002]

[Prior art]

 Conventionally, when replacing a propane gas cylinder, a freight truck is equipped with a propane gas cylinder and a wheelbarrow for transporting the propane gas cylinder, and the vehicle goes to the site. Is normal.

However, in the transportation by the conventional handcart, the operation of loading and unloading the propane gas cylinder is troublesome. In addition, if there are steps or stairs in the middle of transportation, it cannot be carried by a handcart, so the propane gas cylinders can be temporarily unloaded from the cart and carried or rolled on their own. After passing through the road, the work load on the worker is heavy, such as reloading in a wheelbarrow.

Further, when the machine body is excessively inclined with respect to the ground contact surface due to a step or stairs, or when the cylinder is not set at a predetermined front-back position or angular position with respect to the machine body, the cylinder carrier falls over. There is a risk of Also, when the drive motor continues to operate even after touching the human body or other objects, there is a risk that the cylinder transporter may push down the human body or damage other objects. If the drive motor continues to operate even after the operator releases the operating handle, there is a danger that the cylinder carrier will run out of control.

[0005]

[Problems to be solved by the device]

 Therefore, an object of the present invention is to provide a safety system that accurately detects a dangerous state and stops the operation of the drive motor, which enables stable and safe traveling even on steps, stairs, etc. It is to provide a cylinder carrier that can be smoothly and easily operated.

[0006]

[Means for Solving the Problems]

 Referring to the reference numerals in the accompanying drawings, a cylinder transporter of the present invention has a body 35 equipped with a DC motor 16 powered by a battery 21. The transmission 19 is attached to the fuselage 35, and the shift lever 14 shifts the gear to shift the gear in three steps, and the side clutch lever 4 operates the clutch when turning. The trackless traveling devices 22 are attached to the left and right sides of the airframe 35, and are driven by the DC motor 16 via the transmission 19.

The left and right two rails 12 are horizontally fixed to the machine body 35. The carrier support frame 11 that slides along the rails 12 by a predetermined distance is arranged on the upper surface side of the machine body 35 when traveling on a flat ground, traveling on a step or stairs, or when unloading a cylinder. A carrier 9 on which the cylinder 1 is mounted is connected to a carrier support frame 11 by a rotating shaft 10.

The carrier support frame 11 is provided with a stopper 13 for fixing the carrier support frame 11 to the rail 12 at a predetermined position when traveling on a flat ground, traveling on a step or stairs, or when unloading a cylinder. The stoppers 13 are inserted into and removed from the receiving holes 12a, 12b, 12c provided at predetermined intervals in the length direction of the rail 12. Rollers 36 attached to the respective ends of the horizontal shaft 26 of the carrier support frame 11 and the rotary shaft 10 are mounted on the left and right rails 12.

The hook metal fitting 23 is attached to the carrier 9, while the receiving metal fitting 25 is attached to the carrier support frame 11. When the carrier 9 is in a predetermined lying position or inclined position, the latch metal fitting 23 is engaged with the metal fittings 25 and 37 to couple the carrier 9 to the carrier support frame 11. The carrier 9 is provided with a rotating handle 7 for rotating the carrier 9 up and down around a rotating shaft 10 when loading and unloading cylinders.

The operation handle 6 is attached to the carrier support frame 11, and the carrier 9 and the carrier support frame 11 are slid together along the rail 12. The operation handle 6 is equipped with a main clutch / brake lever 5, a side clutch lever 4, and a stopper operation lever 2.

This cylinder transporter includes a safety bumper sensor 38 that detects that the bumper 27 of the carrier 9 has come into contact with another object such as a human body, a building, a fence, or a planting, and an inclination angle of the vehicle body 35 with respect to the ground contact surface. The tilt sensor 42 for detecting the carrier support frame 11, the slide position detection sensor 39 for detecting whether the carrier support frame 11 is slid at a predetermined position, and the latch sensor 43 for detecting whether the carrier 9 is locked at the predetermined position. When the safety is confirmed, the controller 41 having the runaway prevention sensor 44 that detects that the driver has left the cylinder transporter and the detection signal from each sensor is input is a controller of the DC motor 16. While the drive signal is output to 46, the drive signal is output to the voice alarm device 40 when safety is not confirmed.

[0012]

[Action]

 In this cylinder transporter, a trackless traveling device 22 such as a rubber crawler is used for traveling on steps, stairs, and level ground. The rotation output of the DC motor 16 is transmitted to the trackless traveling device 22 after being shifted in three stages by the transmission 19 by the operation of the main clutch / brake lever 5, and the speed is adjusted according to the traveling location. When traveling on steps or stairs, the vehicle is operated at a low speed to climb and climb stably and safely.

When there is a corner or a curved portion in the transportation route, the side clutch lever 4 on one of the left and right sides is operated to disengage the clutch of the trackless traveling device 22 on that side, whereby the machine body 35 is moved in a desired direction. Turn. Further, the direction of the body 35 at the location where the cargo truck or the cylinder is installed is changed in the same manner.

At the installation location of the cylinder, the cylinder 1 is normally set up and stored. By pulling up the rotary handle 7, the engagement between the latch metal fitting 23 and the receiving metal fitting 25 is released, so that the carrier 9 stands upright about the rotary shaft 10 up to a vertical state. Therefore, it is possible to easily mount the bomb 1 on the carrier 9 in an upright state.

The carrier support frame 11 is slid horizontally on the rail 12. The carrier support frame 11 is fixed to the rail 12 by a stopper 13 at a predetermined position according to the purpose of traveling on a flat ground, traveling on a step or stairs, and loading and unloading cylinders. As a result, the center of gravity of the entire body moves to improve running stability.

[0016]

【Example】

 When traveling on level ground shown in FIG. 1, the stopper 13 of the carrier support frame 11 is inserted into the receiving hole 12b in the middle part of the rail 12, and the center of gravity of the entire carrier is the ground contact surface of the rubber crawler type trackless traveling device 22. It is inside and stable driving is possible. At this time, the carrier 9 is constrained to the carrier support frame 11 by the latch fitting 23 and the receiving fitting 25. The latch metal fitting 23 is connected to the rotary handle 7. The engagement holding spring 24 between the latch metal fitting 23 and the receiving metal fitting 25 is composed of a torsion spring. When the rotational force of the DC motor 16 is input to the transmission 19 by the V-belt 17 and the trackless traveling device 22 is driven by the sprocket 20 attached to the output shaft of the transmission 19, the carrier machine moves in the direction of the arrow in FIG. To run.

At the time of loading and unloading the cylinder shown in FIG. 3, the stopper 13 is inserted into the receiving hole 12c on the side close to the rotary shaft 10, that is, on the front side, and the carrier support frame 11 projects toward the front side of the carrier for a predetermined distance. It is fixed to the rail 12 in a closed state. When the rotating handle 7 is pulled up, the latch metal fitting 23 is separated from the receiving metal fitting 25, and the carrier 9 is erected and rotated to a vertical state. In this state, the cylinder 1 is loaded on the carrier 9 and fixed to the carrier 9 with the band 8. When the rotating handle 7 is pulled down, the carrier 9 is again restrained by the carrier support frame 11 by the engagement of the latch metal fitting 23 and the receiving metal fitting 25.

During traveling on the stairs shown in FIG. 4, the stopper 13 is inserted into the receiving hole 12a on the rear side, and the carrier support frame 11 is fixed to the rail 12 while being moved rearward. The position of the center of gravity of the entire carrier is within the ground of the trackless traveling device 22, which enables stable traveling even on a steep slope. Further, by shifting the shift lever 14 of the transmission 19 to run at an extremely low speed, high-efficiency rotation can be obtained, and stable and safe lifting can be performed. Normally, the backward movement (direction of the arrow in Fig. 4) is used for climbing up a step or stairs, but since the position of the center of gravity can be changed, it is possible to go up and down without selecting forward or backward movement.

As shown in FIG. 5, the stopper 13 is of a spring return type, and the wire 28 having one end fixed to the base end portion 32 of the stopper 13 is connected to the stopper operation lever 2 attached to the operation handle 6. ing. When the operator operates the stopper operating lever 2 and pulls the wire 28, the tip of the stopper 13 is pulled out from the receiving holes 12a, 12b, 12c on the rail 12 side. When the hand is released from the stopper operating lever 2, the elastic force of the compression coil spring 33 causes the stopper 13 to slide back and be inserted into the receiving holes 12a, 12b, 12c.

The safety bumper sensor 38 is composed of a pressure switch that is pressed to a predetermined pressure to open and close the contacts, and is attached to the bumper 27. When the safety bumper sensor 38 detects the presence of a human body or another object, the drive of the DC motor 16 is stopped or the power transmission to the trackless traveling device 22 is cut off. As shown in FIG. 3, when the carrier 9 is erected vertically on the ground for loading and unloading the cylinder 1, the bumper 27 is installed so that the safety bumper sensor 38 operates and the drive of the DC motor 16 is stopped. Or, the power transmission to the trackless traveling device 22 is cut off.

The slide position detection sensor 39 is composed of a micro switch, is provided in the rail 12, and is arranged directly below the receiving holes 12a, 12b, 12c. When the stopper 13 is inserted into any of the receiving holes 12a, 12b, 12c, it is operated by a pressing operation at the tip of the stopper 13, and which slide position of the carrier support frame 11 with respect to the machine body 35 is located. To detect. The slide position detecting sensor 39 may be constituted by a contact type or non-contact type switch means having another structure for mechanically, electromagnetically or optically detecting the position of the carrier supporting frame 11.

The tilt sensor 42 is composed of an XY direction two-direction detection tilt sensor that detects a change in the liquid surface level according to the tilt as a change in capacitance and converts it into an electric signal. It will be installed in an appropriate place such as the middle section and the middle section. The alarm is issued at a tilt angle of 20 degrees when moving forward, the alarm is issued at a tilt angle of 20 degrees when moving backward, and the alarm of the left and right tilt angles is set to 20 degrees. It is stopped or power transmission to the trackless traveling device 22 is cut off.

The latch sensor 43 is configured by a micro switch, a magnetic proximity switch, or the like, and the carrier 9 is at a storage position with an inclination angle of 5 degrees with respect to the carrier support frame 11, or a stationary traveling position with an inclination angle of 20 degrees Detects whether you are in a stair climb position. When the carrier 9 is in the 20 degree inclined position, the latch metal fitting 23 engages with one receiving metal fitting 25, and when the carrier 9 is in the retracted position, the latch metal fitting 23 engages with another receiving metal fitting 37. The latch sensor 43 mechanically, electromagnetically or optically detects the position of the rotation operation handle 7, the latch metal fitting 23 or the carrier 9 and sends a detection signal to the controller 41. The structures of the latch fitting 23 and the receiving fittings 25 and 37 are not limited to those shown in the drawings. When the detection signal is not sent from the latch sensor 43, it means that the carrier 9 is not locked at the predetermined angular position. Therefore, an alarm is generated and the drive of the DC motor 16 is stopped, Power transmission to the trackless traveling device 22 is cut off.

The runaway prevention sensor 44 is used by mounting it in a worker's chest pocket or the like, and when the runaway prevention sensor 44 is detached from the worker, a built-in switch contact is opened and closed. As a result, an alarm is generated and the drive of the DC motor 16 is stopped, or the power transmission to the trackless traveling device 22 is cut off.

[0025]

[Effect of device]

 As described above, in the cylinder transporter of the present invention, since the DC motor 16 using the battery 21 as a power source is mounted on the machine body 35 as the driving means, there is little noise, it can be operated even in a residential dense place or at night, and it catches fire. There is no fear of.

The trackless type traveling device 22 such as a rubber crawler type is provided around the feet on both left and right sides of the body 35, and the rotation output of the DC motor 16 is transmitted to the trackless type traveling device 22 via the transmission 19. It becomes possible to run at very low speed with high efficiency rotation, and the stopper 13 is inserted into the receiving holes 12a, 12b, 12c of the rail 12, and the carrier supporting frame 11 is slid in the front-rear direction. Since the vehicle can move, it is possible to drive safely and stably even on steps or stairs.

The carrier 9 on which the cylinder 1 is mounted is connected to the carrier support frame 11 by the rotating shaft 10. When loading and unloading the cylinder, the hook fitting 23 and the receiving fitting 25 are disengaged from each other and the rotating handle 7 is used. Since the carrier 9 can be erected and rotated in the vertical state, it is possible to work with the cylinder 1 standing upright, and the unloading work of the cylinder is rationalized.

Further, in the cylinder transporter of the present invention, the side clutch lever 4 is operated to disengage the clutch of the trackless traveling device 22 on the left and right sides, so that the turning and direction changing operations can be easily performed without difficulty. .

Further, the cylinder carrier of the present invention is a security system including a safety bumper sensor 38 having the above-mentioned functions, a tilt sensor 42, slide position detection sensors 39, 40, 41, a ratch sensor 43, and a runaway prevention sensor 44. The controller 41 to which the detection signal from each sensor is input outputs a drive signal to the control unit 46 of the DC motor 16 at the time of safety confirmation, while the audible alarm 40 when the safety is not confirmed. Since a drive signal is output to, it is possible to drive safely without the risk of falls, collisions, or runaways.

[Brief description of drawings]

FIG. 1 is a front view of a cylinder transporter according to an embodiment of the present invention when traveling on a level ground.

FIG. 2 is a right side view of the cylinder transporter during traveling on a flat surface.

FIG. 3 is a front view of the cylinder transporter when loading and unloading cylinders.

FIG. 4 is a front view of the cylinder transporter when traveling on stairs.

FIG. 5 is an enlarged sectional view of a stopper portion of the cylinder transporter.

FIG. 6 is a vertical sectional view of a rail of the cylinder transporter.

FIG. 7 is a flow chart of a security system incorporated in the cylinder carrier.

[Explanation of symbols]

 1 cylinder 2 stopper operation lever 3 DC motor opening / closing key switch 4 side clutch lever 5 main clutch / brake lever 6 operation handle 7 rotating handle 8 cylinder tightening band 9 carrier 10 rotating shaft 11 carrier support frame 12 rail 12a step 12b Stopper receiving hole for running on stairs and stairs 12b Stopper receiving hole for running on flat ground 12c Stopper receiving hole for loading and unloading cylinders 13 Stopper 14 Shift lever 15 DC motor belt wheel 16 DC motor 17 V belt 18 Transmission input Belt car 19 Transmission 20 Sprocket 21 Battery 22 Rubber crawler type trackless traveling device 23 Latch metal fitting 24 Engagement maintaining spring 25 Receiving metal fitting 26 Horizontal shaft 27 Carrier bumper 28 Wire 29 Wa Guide tube for the stopper 30 Guide case for the stopper 31 Lid for the guide case 32 Base end of the stopper 33 Compression coil spring for return 34 Positioning E-ring 35 Airframe 36 Roller 37 Receiving metal fitting 38 Safety bumper sensor 39 Slide position detection sensor 40 Voice alarm 41 Controller 42 Inclination Sensor 43 Latch Sensor 44 Runaway Prevention Sensor 45 Worker 46 Motor Control Section

Claims (1)

[Scope of utility model registration request] 1. An airframe 35 equipped with a DC motor 16 using a battery 21 as a power source; and attached to the airframe 35,
A transmission 19 in which a shift lever 14 performs a shift operation to shift to three speeds and a clutch is operated by a side clutch lever 4 when turning; a trackless traveling device 22 mounted on the left and right of a body 35; a carrier 9 in which a cylinder 1 is mounted; Two left and right rails 12 installed horizontally on the machine body 35; when traveling on level ground, traveling on steps or stairs, loading and unloading cylinders,
A carrier support frame 11 that slides along the rail 12 by a predetermined distance; receiving holes 12 provided in the carrier support frame 11 and provided at predetermined intervals in the length direction of the rail 12.
a, 12b, 12c are inserted into and removed from the carrier support frame 11
13 to fix the rail to the rail 12 at a predetermined position
A rotary shaft 10 for rotatably mounting the carrier 9 on the carrier support frame 11, and a roller mounted on the horizontal shaft 26 of the carrier support frame 11 and each end of the rotary shaft 10 and mounted on the left and right rails 12. 36; latch metal fittings 23 attached to the carrier 9; mounted on the carrier support frame 11, and when the carrier 9 is in a predetermined fall position or tilt position, engage the latch metal fittings 23 to lock the carrier 9 in that position. Receiving metal fittings 25, 37 for stopping; a rotating handle 7 attached to the carrier 9 for rotating the carrier 9 upright about the rotating shaft 10 when loading and unloading the cylinder; and a carrier 9 attached to the carrier support frame 11 and joined. The carrier support frame 11 is slid along the rails 12, and the main clutch / brake lever 5, the side clutch lever 4, and the stopper are operated. The operation handle 6 equipped with a lever 2; bumper 27 is the human body and buildings, fence of the carrier 9,
A safety bumper sensor 38 that detects contact with another object such as a planting; a tilt sensor 42 that detects a tilt angle of the machine body 35; and whether or not the carrier support frame 11 is slid to a predetermined position A slide position detection sensor 39; a latch sensor 43 for detecting whether the carrier 9 is locked at a predetermined position; a runaway prevention sensor 44 for detecting that an operator has left the cylinder carrier; When a detection signal is input and safety is confirmed, a drive signal is output to the control unit 46 of the DC motor 16, and when safety is not confirmed, the control unit 41 outputs a drive signal to the voice alarm 40. Cylinder carrier.