JP4791719B2 - Gas cylinder changer - Google Patents

Description

The present invention relates to a suitable gas cylinder exchange device to exchange換作industry gas cylinder mounted to the frame of the industrial vehicle such as forklift trucks.

Conventionally from the gas cylinder mounting apparatus easily performed as in exchange換作industry the small force of the gas cylinder mounted on the frame of the industrial vehicle has been proposed (see Patent Document 1).

This includes a cylinder mounting member for mounting a gas cylinder, and an elevating means for moving the mounted gas cylinder up and down using an elastic member such as a spring coil, a hydraulic or pneumatic actuator, etc. A rear pillar or the like is configured to be pivotably coupled by a pivot coupling means. The empty cylinder on the machine base is rotated from the machine base together with the cylinder mounting member by the rotating connecting means, is lowered by the lifting means and transferred from the cylinder mounting member onto the transport carriage, and then the filling cylinder on the transport carriage is It is placed on the cylinder mounting member and mounted on the machine base by performing the empty cylinder removal procedure in reverse.
JP-A-8-165093

  However, in the above conventional example, the gas cylinder is configured to be moved up and down and rotated together with the cylinder placing member by the raising and lowering means and the rotation connecting means, so that the weight of the cylinder placing member in addition to the filling cylinder is combined. It is necessary to have a structure that can be moved up and down, and is a mechanically complicated and expensive device as a gas cylinder mounting device, and it is necessary to equip all the gas cylinder mounting vehicles in operation.

The present invention has been made in view of the above problems, and an object thereof is gas cylinder exchange換作industry without requiring equipment to the vehicle to provide a suitable gas cylinder exchange device.

The present invention is a gas cylinder exchange device used for exchanging gas cylinders mounted on a vehicle gantry, and is equipped with a carriage unit movable by a plurality of wheels , and a gas cylinder mounted on the carriage unit. A plurality of mounting bases that can be moved up and down together, and the lifting means guides the bases of the plurality of mounting bases arranged so as to be in a vertical position with respect to one of the mounting bases. From the lowered position where the newly installed gas cylinder is loaded, to the empty mounting base where the gas cylinder is not mounted and the vehicle base, the rising position where the gas cylinder can be transferred from the base to the empty mounting base, and a new vertically movable to the newly transferred capable raised position gas cylinder mounting onto the frame between the frame of the mount base and a vehicle equipped with a gas cylinder mounting, lift the base of the lower GawaSo Chakudai is upward The Comprising a slide rod passing through the lifting base of Biteue GawaSo Chakudai for elevating the base of the upper GawaSo Chakudai the lifting base of the lower GawaSo Chakudai, spaced above a predetermined interval provided in the slide rod be bound by the stopper, mutual approaching is connected to be acceptable, the lifting means, by elevating the elevating base above GawaSo Chakudai, increasing the lower GawaSo Chakudai via the slide rod and It was made to descend.

Therefore, in the present invention, a gas cylinder replacement device used for exchanging gas cylinders mounted on a vehicle gantry, a carriage unit movable by a plurality of wheels, and standing on the carriage unit, the gas cylinders are respectively provided. Elevating means capable of raising and lowering a plurality of mountable mounts together, wherein the elevating means guides the elevating bases arranged so as to be in a vertical position relative to each other, and attaches either From the lowered position where the gas cylinder to be newly mounted to the base is loaded, the rising position where the gas cylinder can be transferred from the base to the empty base between the empty base and the vehicle base not equipped with the gas cylinder, In addition, since the gas cylinder to be newly installed can be moved up and down to a raised position where the gas cylinder to be newly installed can be transferred to the frame between the mounting base equipped with the gas cylinder to be newly installed and the vehicle base, It is possible to transport the gas cylinder and lift the gas cylinder to the vehicle base without having to equip a mechanically complicated and expensive gas cylinder mounting device for replacing the cylinder. It can be exchanged by lifting and lowering work, reducing the work burden and shortening the work time.
In addition, the plurality of mounting bases are arranged so as to be in a vertical position with each other, and the plurality of mounting bases are simultaneously lifted and lowered by the elevating means. Raise both mounting bases, transfer the empty gas cylinder on the vehicle base to the empty mounting base in the raised position, adjust the rising position of the lifting means, and transfer the filling cylinder onto the vehicle base, as it is It is only necessary to transport empty cylinders, and the cylinder replacement work time can be shortened.
Moreover, lifting the base of the lower GawaSo Chakudai includes a slide rod extending through the lifting base of the upper GawaSo Chakudai extends upward, lifting the base of the upper GawaSo Chakudai the lifting base of the lower GawaSo Chakudai respect, also the spacing exceeds a predetermined spacing is constrained by the stopper provided on the slide rod, mutual approaching is connected to be acceptable, the lifting means, by elevating the elevating base above GawaSo Chakudai , so that raising and lowering the lower GawaSo Chakudai via the slide rod. For this reason, it is possible to position each other at a predetermined interval at the ascending position, and to accommodate an empty gas cylinder from the vehicle gantry and to transfer the filling cylinder onto the gantry by simply changing the ascent position. Can do. Further, in the lowered position where the upper and lower mounting bases are lowered to the lowest position, the upper mounting base can be placed on the lower mounting base, the height of the upper mounting base can be lowered, and the gas cylinder to the upper mounting base can be lowered. Can be loaded and unloaded easily.
Then, since the elevating base of the lower GawaSo Chakudai linked to the upper mount base of the lift base via a slide rod, you can simplify the structure such as a guide roller for guiding the ascending and descending base part of the lower, thereby lifting The vertical dimension of the base can be reduced, and in this respect as well, the height of the upper mounting base when the upper mounting base is placed on the upper mounting base in the lowered position where it is lowered to the lowest level is further reduced. It is possible to load and unload the gas cylinder on the upper mounting base even more easily.

Hereinafter, one embodiment of a gas cylinder exchange device of the present invention is described based on FIGS.

1 to 10 show a first embodiment of a gas cylinder changing apparatus to which the present invention is applied. FIG. 1 is a side view of the gas cylinder changing apparatus, FIG. 2 is a side view of a gas cylinder mounting base, and FIGS. FIG. 9 is a side view of the gas cylinder changing device in the accommodated state of the empty gas cylinder with the mounting table raised, and FIG. 10 is a gas cylinder changing device at the transfer position of the filling cylinder with the mounting table raised. FIG.

In FIG. 1, a gas cylinder replacement device 1 includes a carriage unit 2 that can be moved by casters 11, 13, a guide rail 3 that stands up from the carriage unit 2, a mounting base 4 that can be moved up and down along the guide rail 3, and a mounting base. Elevating means 5 for elevating and lowering 4 along the guide rail 3 is provided.

The carriage unit 2 is provided below a rear wheel caster 11 provided below a base portion 10 extending rearward from a portion where the guide rail 3 rises and below an arm portion 12 which also extends forward from the standing portion of the guide rail 3. A front wheel caster 13 is provided. Although not shown, the forward arm portion 12 extends in a bifurcated manner, and includes a front wheel caster 13 below the front end of each arm portion 12. For this reason, the gas cylinder changing apparatus 1 can be moved on the floor by the casters 11 and 13 of the front and rear wheels. The rear wheel caster 11 incorporates a stopper function constituted by a brake mechanism that stops the rotation of the caster wheel. By using the stopper function, the movement of the gas cylinder replacement device 1 can be stopped and fixed to the floor.

The guide rail 3 is formed by a pair of rails 15 erected from the carriage unit 2, and the pair of rails 15 has a U-shaped cross section and is erected with the opened portions facing each other, and the upper end portion is a cross. They are connected by a beam 16. A pulley 17 is rotatably provided on the cross beam 16, and a wire rope 31 of the elevating means 5 is wound around the pulley 17. In addition, the upper and lower ends of the movement handle 18 are fixed to the middle portion of the guide rail 3, and the middle portion of the movement handle 18 can be bent rearward to hold the movement handle 18 forward, backward, left and right. By pushing and pulling, the gas cylinder exchange device 1 can be moved on the floor. In the middle of the guide rail 3, an operation panel 19 is fixed in the vicinity of the moving handle 18. The operation panel 19 includes a power switch for the lifting means 5, a lifting operation switch, and a lifting speed setting. A switch is arranged. Further, a control box 30 of the lifting means 5 is disposed on the base portion 10 behind the guide rail 3.

  The mounting base 4 rolls within the opposing U-shaped cross section of the pair of guide rails 15 and has a lifting base 21 in which a plurality of guide rollers 22 that can move up and down along the U-shaped cross section are arranged at both ends. Is provided. The end of the wire 31 around which the pulley 17 of the cross beam 16 is wound is fixed to the elevating base 21 by the elevating means 5. Accordingly, the mounting base 2 is raised by winding the wire 31 fed from the lifting / lowering means 5 by the lifting / lowering means 5, lowered by feeding the wire 31, and lifted / lowered when the feeding or winding of the wire 31 is stopped. The movement is stopped.

  As shown in FIG. 2, the mounting base 2 is formed of an upper mounting base 20A and a lower mounting base 20B, and an end of the wire 31 is fixed to an elevating base portion 21A of the upper mounting base 20A. The upper mounting base 20A is moved up and down directly by feeding and winding the wire 31. The lower mounting base 20B is connected to the upper mounting base 20A by the slide rod 24 so that the distance between the upper mounting base 20A and the upper mounting base 20A is restricted by the stopper 23 but is allowed to approach each other. is doing.

  As shown in the figure, when the slide rod 24 is fixed to the lifting base 21B of the lower mounting base 20B, the guide roller 22A of the lifting base 21A of the upper mounting base 20A is connected to the lifting base 20B of the lower mounting base 20B. The structure of the guide roller 22 can be simplified by combining the functions of the guide roller 22B above the 21B and by combining the guide rollers 22B of the elevating base portion 21B of the lower mounting base 20B with the left and right sets. With this configuration, when the lower mounting table 20B and the upper mounting table 20A are moved down along the guide rail 15, the upper and lower mounting tables 20A and 20B overlap with each other in the vertical direction as shown in FIG. When the upper mounting base 20A is lifted by the lifting means 5 from this state, only the upper mounting base 20A is lifted, and when the lifting base 21A of the upper mounting base 20A comes into contact with the stopper 23 of the slide rod 24, FIG. As shown, the lower mounting base 20B rises as a unit while maintaining the distance by the slide rod 24.

  As shown in FIGS. 2 and 3, the upper and lower mounting bases 20A and 20B are respectively provided with arms 25A and 25B that extend forward from the elevating bases 21A and 21B and on which the gas cylinder GB can be placed. The arms 25A and 25B are arranged so as to be paired on the left and right sides (not shown) so as to support the gas cylinder GB with a predetermined span, and the arms 25A and 25A and 25B and 25B are connected by a connecting rod 26 to be integrated. (See FIGS. 4 to 6). The arm 25B of the lower mounting base 20B is formed integrally with the lifting base 21B. As shown in FIG. 4, the arm 25A of the upper mounting base 20A is rotatably connected to the lifting base 21A by a hinge pin 27, and as shown in FIG. Although the rotation of the arm 25A is restricted, as shown in FIGS. 6 and 7, the upward rotation of the arm 25A is allowed. Therefore, with the gas cylinder GB mounted on the arm 25B of the lower mounting base 20B, the upper and lower mounting bases 20A and 20B are lowered along the guide rail 15, and the lower mounting base 20B is stopped at the lower end of the guide rail 15. When the upper mounting base 20A is further lowered, as shown in FIG. 8, the arm 25A of the upper mounting base 20A comes into contact with the upper surface of the gas cylinder GB, and the arm of the upper mounting base 20A is lowered as the upper mounting base 20A is lowered. 25A is raised by the gas cylinder GB.

  The hinge pin 27 of the arm 25A of the upper mounting base 20A has a hinge damper mechanism 29 that is gradually rotated when the arm 25A shown in FIGS. 7 and 6 is rotated from the standing state to the stopper 28 contact position shown in FIG. The arm 25A is configured not to abruptly contact the stopper 28. The upper surface of each arm 25A, 25B is provided with a recess so that the gas cylinder GB can be held in a well-positioned manner. The gas cylinder GB is supported by a recess of the arms 25A and 25B and a connecting rod 26 that connects the left and right arms.

  The elevating means 5 is disposed in the control box 30, and although not shown, a battery, an electric motor driven by a power source of the battery, a drum connected to the electric motor and driven to rotate by the electric motor, A driver for controlling the speed and driving direction of the electric motor is provided. The electric motor is rotationally driven based on a command from the driver transmitted according to the operation status of the power switch installed on the operation panel 19, the up / down movable switch of the mounting base 4, and the motor speed setting switch. The drum and the upper mounting table 20A are connected by a wire 31 wound around the pulley 17 of the cross beam 16, and the mounting table 4 is driven to rise vertically upward by winding the wire 31 with the drum. Further, by loosening the wire 31 wound by the drum, the mounting table 4 is driven to move downward in the vertical downward direction.

Desorption / replacement work of the gas cylinder GB by the gas cylinder replacement apparatus having the above configuration will be described below.

First, as shown in FIG. 1, a new filling cylinder GB filled with gas is mounted on the upper mounting base 20 </ b> A of the gas cylinder changing apparatus 1 and is transported to a vehicle that requires replacement of the gas cylinder GB. The gas cylinder GB is mounted on the upper mounting base 20A of the gas cylinder exchanging apparatus 1 from a loading platform such as a gas cylinder stacking station or a cylinder transporting truck by moving the upper mounting base 20A up and down to a height where the gas cylinder GB is stored. The GB can be mounted simply by rolling and moving the GB in the horizontal direction. Further, the mounted gas cylinder GB can be easily moved by the caster wheels 11 and 13 only by pushing and pulling the moving handle 18 of the gas cylinder changing device 1.

Next, as shown in FIG. 9, the gas cylinder replacement device 1 is positioned behind the counterweight CW of an industrial vehicle (here, described for the forklift truck) that performs the replacement operation of the gas cylinder GB. The caster wheel 11 is locked by operating the stopper function. In this state, the arm 12 and the front wheel caster 13 of the gas cylinder changing device 1 enter the lower side of the counterweight CW, and the tip of the arm 25 of the mounting base 4 faces the rear surface of the counterweight CW.

  Next, the lower mounting base 20B is raised to the upper surface of the counterweight CW. When the power switch of the operation panel 19 is turned on and the mounting table raising switch is operated, the electric motor of the elevating means 5 drives the wire winding drum to wind the wire 31 and the mounting table 4 is raised. From the stage where the upper mounting base 20A is raised in a state where the filling gas cylinder GB is mounted and the elevating base 21A of the upper mounting base 20A contacts the stopper 23 at the upper end of the slide rod 24, the lower mounting base 20B is also Raised in conjunction. When the upper end of the arm 25B of the lower mounting base 20B becomes substantially the same height as the upper surface of the counterweight CW, the elevating means 5 is stopped if the elevating switch is returned to the neutral state. At this time, when the power switch is switched off, the lifting means 5 is locked, and the lifting movement of the upper and lower mounting bases 20A and 20B can be prohibited.

  Next, the empty gas cylinder GB loaded on the counterweight CW is transferred to the lower mounting base 20B. The gas cylinder GB on the counterweight CW is normally fixed on the mounting base by a fastener (not shown). The movement can be performed by removing the stopper and moving the gas cylinder GB in a substantially horizontal direction. In moving the cylinder GB, the cylinder GB can be moved relatively easily by rolling it. For example, by moving a moving rail or the like between the gantry and the lower mounting base 20B, Transfer becomes easy.

  When the transfer to the lower mounting table 20B of the empty gas cylinder GB is completed, the upper and lower mounting tables 20A and 20B are lowered so that the upper surface of the upper mounting table 20A is substantially the same height as the upper surface of the counterweight CW. When the power switch of the operation panel 19 is turned on again and the elevating switch is switched to the lowered position, the elevating means 5 drives the drum by the electric motor to feed out the wire 31, and the wire 31 is moved up and down according to the feeding. Descends. When the upper surface of the upper mounting base 20A becomes substantially the same height as the upper surface of the counterweight CW, the elevating means 5 is stopped if the elevating switch is returned to the neutral state. Even at this time, when the power switch is turned off, the elevating means 5 is locked and the up and down mounting bases 20A and 20B can be prohibited from moving up and down.

  Next, the filling gas cylinder GB mounted on the upper mounting base 20A is transferred onto the vehicle base. The movement can be performed by moving the gas cylinder GB in a substantially horizontal direction. Even when the cylinder GB is moved, it can be moved relatively easily if the cylinder GB is moved while being rolled. It becomes easy to load.

When the transfer of the filling gas cylinder GB to the gantry is completed, the upper and lower mounting bases 20A and 20B are lowered and the gas cylinder replacement device 1 is pushed to transport the empty gas cylinder GB to the gas filling place. When the power switch of the operation panel 19 is turned on again and the elevating switch is switched to the lowered position, the elevating means 5 drives the drum by the electric motor to feed out the wire 31, and the wire 31 is moved up and down according to the feeding. Descends. When the lower mounting base 20B reaches the lowermost end of the guide rail 15, the lower mounting base 20B stops descending, and only the upper mounting base 20A is continuously lowered. As the upper mounting base 20A is lowered, the arm 25A of the upper mounting base 20A comes into contact with the empty gas cylinder GB on the lower mounting base 20B, and the arm 25A is raised by the hinge pin 27.

  As shown in FIG. 8, when the lifting base 21A of the upper mounting base 20A comes into contact with the lifting base 21B of the lower mounting base 20B, the lifting means 5 is stopped if the lifting switch is returned to the neutral state. Even at this time, when the power switch is turned off, the elevating means 5 is locked and the up and down mounting bases 20A and 20B can be prohibited from moving up and down. In addition, a switch for detecting contact between the lifting base 21A of the upper mounting base 20A and the lifting base 21B of the lower mounting base 20B is provided so that the lifting base 21A of the upper mounting base 20A is the lifting base 21B of the lower mounting base 20B. The elevating means 5 may be automatically stopped at the time when it comes into contact, and in this case, it is not necessary to turn off the power switch each time, and the operability is improved.

If the stopper function of the rear wheel caster 11 is released in this loaded state, the gas cylinder changing device 1 can be moved by pushing the moving handle 18. At the gas filling place, the arm 25A of the upper mounting base 20A is in the maximum standing state as shown in FIG. 7, and the removal / replacement operation of the gas cylinder GB is completed by lowering the empty gas cylinder GB from the lower mounting base 20B. be able to. Since the standing arm 25A of the upper mounting base 20A is gradually lowered by the hinge damper 29, the unloading operation of the empty gas cylinder GB is not hindered, and gradually returns to the horizontal state after unloading.

In the gas cylinder exchanging apparatus 1 according to the present embodiment described above, the gas cylinder GB is removed and replaced without requiring that the vehicle itself be equipped with a mechanically complicated and expensive gas cylinder mounting apparatus for exchanging the gas cylinder. Can provide a suitable gas cylinder replacement apparatus 1.

  Moreover, in the conventional work of replacing the gas cylinder GB with a hand lifter, the first stage of work of transporting the filling cylinder GB to the vicinity of the forklift with the hand lifter and once dropping the carried filling cylinder GB from the hand lifter to the ground, Operate the hand lifter, lift the lifter to the height of the vehicle base, load the empty cylinder GB on the lifter, operate the hand lifter to lower the empty cylinder GB, lower the empty cylinder GB from the lifter, and the lifter Reload the filling cylinder GB, operate the hand lifter, lift the filling cylinder GB to the height of the gantry, load the filling cylinder GB on the gantry, operate the hand lifter to lower the lifter, and lift the empty cylinder GB 4th stage work that loads the empty cylinder GB with the hand lifter Theft was required.

However, in the gas cylinder replacement apparatus 1 of this embodiment, by providing two mounting bases 4 for the gas cylinder GB, it is carried to the vicinity of the forklift with one of the charging cylinders GB loaded, and the both mounting bases 20 are lifted as they are. The empty gas cylinder GB on the vehicle gantry at the ascending position is transferred to the vacant mounting base 20, and at the same ascending position, the filling cylinder GB is transferred onto the gantry of the vehicle and the empty cylinder GB may be conveyed as it is. The cylinder replacement work time can be shortened.

  In addition, since the upper mounting base 20A and the lower mounting base 20B can be positioned at a predetermined distance from each other at the raised position by the slide rod 24, the empty mounting base 20A and the lower mounting base 20B can be emptied from the vehicle gantry only by changing the raised position. The gas cylinder GB can be accommodated and the filling cylinder GB can be transferred onto the vehicle frame. Further, at the position where the upper and lower mounting bases 20A and 20B are lowered to the lowermost stage, the upper mounting base 20A can be placed on the lower mounting base 20B, the height position of the upper mounting base 20A can be lowered, It is possible to easily load and unload the gas cylinder GB on the mounting base 20A.

  Furthermore, since the arm 25A of the upper mounting base 20A can be bent by the hinge structure, the arm 25A can be raised and the gas cylinder GB can be mounted only on the lower mounting base 20B. Easy loading and unloading of gas cylinder GB. Further, by incorporating the hinge damper 29 into the hinge structure, it is possible to prevent the arm 25A of the upper mounting base 20A from being lowered during the loading / unloading operation, thereby obstructing the operation, making the loading / unloading operation easier. it can.

  In the present embodiment, the following effects can be achieved.

  (A) A carriage unit 2 that can be moved by a plurality of wheels, and a lifting / lowering means 5 that is installed on the carriage unit 2 and that can move up and down a plurality of mounting bases 20A and 20B each capable of mounting a gas cylinder GB. The elevating means 5 starts from the lower position where the gas cylinder GB to be newly mounted on any of the mounting bases 20A is loaded, and between the empty mounting base 20B not mounted with the gas cylinder GB and the base of the vehicle. The gas cylinder GB newly mounted between the mounting position 20A on which the gas cylinder GB is transferred to the empty mounting base 20B and the mounting base 20A on which the newly installed gas cylinder GB is mounted and the base of the vehicle is transferred to the base. Since it can be moved up and down to a possible lift position, the gas cylinder GB can be operated without requiring that the vehicle itself be equipped with a mechanically complicated and expensive gas cylinder mounting device for gas cylinder replacement. In addition, the gas cylinder GB can be lifted up to the vehicle base, the empty cylinder GB and the filling cylinder GB can be exchanged by one lifting operation, the work load can be reduced, and the work time can also be shortened. .

  (A) Since the plurality of mounting bases 20A and 20B are arranged so as to be vertically positioned with respect to each other, and the elevating means 5 is configured to be able to raise and lower the plurality of mounting bases 20A and 20B simultaneously, The loaded cylinder GB is carried to the vicinity of the forklift, the two mounting bases 20A and 20B are lifted as they are, and the empty gas cylinder GB on the vehicle base is transferred to the empty mounting base 20B at the lifted position. It is only necessary to adjust the ascending position, transfer the filling cylinder GB onto the vehicle base, and transport the empty cylinder GB as it is, and the cylinder replacement work time can be shortened.

(C) under GawaSo Chakudai 20B is accessible and away from the upper GawaSo Chakudai 20A is and connected to the upper GawaSo Chakudai 20A to regulate the away than a predetermined distance, the lifting means 5 , because it so as to lift the upper GawaSo Chakudai 20A, the empty gas cylinder GB because it can be positioned at intervals of one another at predetermined intervals, only at the platform of the vehicle to change the raised position in the raised position It can be accommodated and the filling cylinder GB can be transferred onto the vehicle frame. Further, when the upper and lower mounting bases 20A and 20B are in the lowest position, the upper mounting base 20A can be positioned on the lower mounting base 20B, the height of the upper mounting base 20A can be lowered, and the upper mounting base can be lowered. Loading and unloading of gas cylinder GB to 20A can be facilitated.

(D) Each mounting table 20A, 20B includes an elevating base 21 and an arm 25 that protrudes horizontally from the elevating base 21 and mounts a gas cylinder GB, and the arm 25A of the upper mounting table 20A moves up and down the upper mounting table 20A. Since it is connected to the base 21A by the hinge pin 27 so that it can be flipped up, the arm 25A can be erected to mount the gas cylinder GB only on the lower mounting base 20B, and the gas cylinder GB to the lower mounting base 20B can be mounted. Easy loading and unloading. Further, by incorporating the hinge damper 29 into the hinge structure, it is possible to prevent the arm 25A of the upper mounting base 20A from being lowered during the loading / unloading operation, thereby obstructing the operation, making the loading / unloading operation easier. it can.

In the above embodiment, the gas cylinder mounting base has been described as having the upper mounting base and the lower mounting base. However, although not shown, a plurality of mounting bases may be provided side by side on a horizontal plane. In this case, an empty gas cylinder is collected on an empty mounting base, and the gas cylinder replacement device is moved without changing the lift position so that the filled gas cylinder is supplied instead.

The side view of the gas cylinder exchange apparatus which shows one Embodiment of this invention. The side view of a gas cylinder mounting stand similarly. The side view which shows the operating state of a gas cylinder mounting base. The exploded view of an upper mounting stand. The side view which shows the normal form of an upper mounting base. The side view which shows the operation state of an upper mounting base. The side view which shows the operation state beyond FIG. 6 of an upper mounting base. The side view which shows the operation state of the up-and-down mounting base at the time of the lowest fall in the state by which the gas cylinder was mounted in the lower mounting base. Operation | movement explanatory drawing which shows the collection | recovery state of the gas cylinder from on the counterweight of a forklift. Operation | movement explanatory drawing which shows the supply state of the gas cylinder on the counterweight of a forklift.

CW Counterweight GB Gas cylinder 1 Gas cylinder replacement device 2 Carriage part 3 Guide rail 4 Mounting base 5 Lifting means 11, 13 Casters 15 Rail 17 Pulley 18 Moving handle 19 Operation panel 20A, 20B Vertical mounting base 21A, 21B Vertical mounting base lifting Base 22A, 22B Guide roller 23 Stopper 24 Slide rod 25A, 25B Arm 27 Pin 29 Hinge damper mechanism

Claims (2)

It is a gas cylinder changing device used for exchanging gas cylinders mounted on a vehicle base,
A carriage unit movable by a plurality of wheels, and elevating means that can be raised and lowered together with a plurality of mounting bases that are erected on the carriage unit and each can mount a gas cylinder,
The elevating means guides the elevating bases arranged so as to be in a vertical position with respect to the plurality of mounting bases, and mounts the gas cylinders from a lowered position where a gas cylinder to be newly mounted on any of the mounting bases is loaded. A rising position where a gas cylinder can be transferred between the empty mounting base and the vehicle mounting base to the empty mounting base, and between the mounting base with the newly installed gas cylinder and the base of the vehicle. The gas cylinder to be newly installed can be moved up and down to the rising position where it can be transferred to the gantry,
Elevating the base of the lower GawaSo Chakudai includes a slide rod extending through the lifting base of the upper GawaSo Chakudai extends upward, the lifting base of the lower GawaSo Chakudai to lift the base of the upper GawaSo Chakudai The distance exceeding the predetermined interval is constrained by a stopper provided on the slide rod, but is connected so as to be allowed to approach each other.
It said lifting means, by elevating the elevating base above GawaSo Chakudai, gas cylinder exchange device, characterized in that raising and lowering the lower GawaSo Chakudai via the slide rod. Each mounting base includes an arm for projecting in a horizontal direction from the lifting base and mounting a gas cylinder,
The gas cylinder replacement device according to claim 1, wherein the arm of the upper mounting base is connected to the lifting base of the upper mounting base so as to be able to be flipped up by a hinge pin.

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