CN115402393A - Trolley for conveying gas container - Google Patents
Trolley for conveying gas container Download PDFInfo
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- CN115402393A CN115402393A CN202210570408.7A CN202210570408A CN115402393A CN 115402393 A CN115402393 A CN 115402393A CN 202210570408 A CN202210570408 A CN 202210570408A CN 115402393 A CN115402393 A CN 115402393A
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- gas container
- gas
- mounting table
- cylinder
- roller
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- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 230000003028 elevating effect Effects 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 234
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 2
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- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 206010041591 Spinal osteoarthritis Diseases 0.000 description 1
- 208000036319 cervical spondylosis Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 208000005801 spondylosis Diseases 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/10—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by supports specially adapted to objects of definite shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2202/00—Indexing codes relating to type or characteristics of transported articles
- B62B2202/02—Cylindrically-shaped articles, e.g. drums, barrels, flasks
- B62B2202/022—Gas bottles
Abstract
The invention provides a trolley for conveying a gas container, which is applicable to conveying in and out of various cylinder cabinets of gas bottles without depending on structures of the cylinder cabinets and the gas bottles, and can easily convey, convey out and convey in the gas bottles serving as heavy objects without consuming hands. The trolley for conveying the gas container comprises: a frame having wheels for traveling with the gas cylinder placed thereon; a mounting table provided in the frame, the mounting table being moved by the lift mechanism in a state in which the gas cylinder is mounted in a vertically mounted posture, the gas cylinder being moved in a vertical direction; and a roller for sliding the gas cylinder in a horizontal direction along the mounting table, wherein the mounting table has a hole portion opened in a bottom plate for mounting the gas cylinder, the roller has a sliding mechanism for moving the roller in the horizontal direction along the mounting table, and when the roller is located below the mounting table, the mounting table is lowered so that the roller protrudes from the hole portion onto the bottom plate.
Description
Technical Field
The present invention relates to a carriage for transporting a gas container.
Background
Conventionally, cylinder cabinets have been widely used as apparatuses for supplying various gases. The cylinder cabinet stores a cylinder (gas container) filled with various gases in a vertically mounted posture in a cylinder storage (storage space) having a cylinder access door.
When a gas cylinder that is used for weight control of the remaining amount and is required is used, a weight measuring device such as a weight sensor is required, and when the liquid state in the gas cylinder is phase-shifted to the gas state, a heating device for the gas cylinder is required. Therefore, a base for mounting the weight sensor, the heating device, and the like is disposed at a position corresponding to a lower portion of the gas cylinder in the bottom portion of the cylinder housing. Therefore, when the gas cylinder is stored in the gas cylinder storage of the cylinder block, the gas cylinder needs to be lifted to a height higher than the base at the bottom of the cylinder block and placed on the base.
In addition, in the cylinder cabinet, in order to improve workability when the gas cylinder is stored in the gas cylinder storage, for example, a roller conveyor (roller conveyor) is provided at the bottom portion, whereby a conveying force of the gas cylinder as a heavy object in the cylinder cabinet can be reduced.
On the other hand, since the above-mentioned storage work is performed by raising the gas cylinder as a heavy object up to a certain height from the ground (floor surface), it is a heavy work and a dangerous work for the operator. In addition, in the work of storing the gas cylinders in the cylinder box, it is necessary to carry out the used gas cylinders from the narrow gas cylinder storage of the cylinder box and then carry in new gas cylinders, and the workability is not necessarily good.
In order to improve workability when the gas cylinder is stored in the cylinder block, for example, a method using a slope tool inclined between the bottom of the cylinder block and the ground (floor surface), a step-like lifting tool combined from block-like sheet metal members, or the like has been proposed. However, in the method using these slope tools or lifting tools, it takes a lot of labor to place the gas cylinder on the bottom of the cylinder block while manually tilting the gas cylinder. In such a working environment, there is a high risk of industrial injuries and accidents, and moreover, it is a very heavy work which is very severe for the elderly and female workers, and therefore, improvement is required as early as possible.
In order to improve workability when storing a gas cylinder in a cylinder box, it has been proposed to provide a lift arm for lifting the gas cylinder in a gas cylinder storage (see, for example, patent document 1).
Further, it has been proposed to attach a transport adapter to a gas cylinder and transport the gas cylinder between a gas cylinder transport cart and a cylinder block using the transport adapter (see, for example, patent document 2).
Patent document 1: japanese Utility model laid-open patent publication No. 63-074600
Patent document 2: japanese patent laid-open No. 2001-106086
However, the technique disclosed in patent document 1 involves a structure in which a lift arm is attached to a gas cylinder storage, and therefore, the structure of the gas cylinder storage needs to be changed, and there is a problem that the case where this technique is applicable is limited.
In addition, the technique disclosed in patent document 2 relates to a structure in which a transport adapter is attached to a gas cylinder, and therefore, it is necessary to attach the transport adapter to all the gas cylinders. Therefore, there is a problem that the apparatus cost is significantly increased and the applicability is limited as described above because the change of the peripheral structure of the gas cylinder is accompanied. Further, as in the conventional art, there is a problem that a lot of labor is required for the work of carrying in and out the gas cylinder between the gas cylinder carrying cart and the cylinder cabinet.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a gas container transfer cart which is applicable to transfer of gas cylinders to and from various cylinder cabinets without depending on the structures of the cylinder cabinets and the gas cylinders, and which can easily transfer, and transfer heavy gas cylinders without requiring human hands.
In order to solve the above problems, the present invention provides the following gas container conveyance carriage.
(1) A trolley for transporting a gas container, comprising:
a frame provided with wheels for traveling with the gas container placed thereon;
a mounting table provided in the frame, the mounting table being moved in a vertical direction by a lifting mechanism in a state where the gas container is mounted, and the gas container being moved up and down; and
a roller for sliding the gas container in a horizontal direction along the mounting table,
the trolley for transporting the gas container is characterized in that,
the mounting table has a hole opened in a bottom plate on which the gas container is mounted,
the roller has a slide mechanism for moving the roller in a horizontal direction along the table,
when the roller is positioned below the mounting table, the mounting table is lowered so that the roller protrudes from the hole portion onto the base plate.
(2) The carriage for transporting a gas container according to (1), wherein a plurality of the holes are arranged in the mounting table,
the roller is disposed in a plurality corresponding to the hole.
(3) The gas container conveyance cart according to (1) or (2), wherein the table is lowered so as to be grounded when the roller is slid to a position deviated from a position below the table.
(4) The gas container conveyance cart according to any one of (1) to (3), further comprising: and a damper for absorbing an impact generated when the mounting table is lowered by the elevating mechanism.
(5) The gas container conveyance cart according to any one of (1) to (4), further comprising: and a stopper for limiting the travel of the gas container conveyance carriage.
(6) The trolley for transporting gas containers, as recited in (5), wherein the stopper is pedal-operated.
(7) The gas container conveyance cart according to any one of (1) to (6), further comprising: an anti-tipping means for holding the gas container.
(8) The gas container conveyance cart according to (7), wherein the overturn preventing means includes: a fixing rod for holding the gas container in a manner of surrounding a side portion thereof; and a screw rod screwed into a screw hole provided in the fixing rod, and a tip of the screw rod is disposed so as to abut against a side portion of the gas container.
(9) The gas container transporting cart according to (7) or (8), wherein the anti-tipping tool includes a hook for engaging at least a part detached from the anti-tipping tool.
(10) The gas container conveyance cart according to any one of (1) to (9), further comprising: a handle for manually moving the gas container carrying cart.
(11) The gas container transport cart according to any one of (1) to (10), wherein the frame is further provided with an adjuster for raising and lowering at least a part of the frame.
(12) The gas container transporting carriage according to any one of (1) to (11), further comprising a rotation driving mechanism for driving the wheel to rotate, whereby the gas container transporting carriage can travel by itself.
According to the present invention, a gas container conveyance cart has the following structure: that is, the mounting table of the gas container has a hole portion opened in a bottom plate on which the gas container is mounted, the roller has a slide mechanism for moving the roller in a horizontal direction along the mounting table, and when the roller is positioned below the mounting table, the mounting table is lowered and the roller is projected from the hole portion onto the bottom plate.
With the above configuration, when the gas cylinder is placed on the platform of the gas container conveyance carriage, the roller is retracted to the rear end portion side of the platform to ground the platform, so that the step between the platform and the floor surface (floor surface) can be minimized, and therefore the gas cylinder can be easily placed on the platform. On the other hand, when the gas cylinder is carried out from the cylinder block, the roller is moved forward to the front end side of the mounting table to lower the mounting table so that the roller protrudes from the hole portion, whereby the gas cylinder can be placed on the roller, and therefore, the gas cylinder can be easily carried out.
Therefore, the structure of the cylinder body cabinet and the gas cylinder does not need to be changed, and the structure of the cylinder body cabinet and the gas cylinder does not need to be changed, so that the gas cylinder conveying device can be applied to conveying and conveying of gas cylinders to various cylinder body cabinets, and can easily convey, convey and convey gas cylinders serving as heavy objects without consuming hands.
Drawings
Fig. 1 is a view schematically illustrating a gas container conveyance cart to which an embodiment of the present invention is applied, and is a perspective view showing an overall structure of the gas container conveyance cart.
Fig. 2 is a diagram schematically illustrating a gas container conveyance cart to which an embodiment of the present invention is applied, and is a front view showing a state in which a mounting table is grounded in the gas container conveyance cart shown in fig. 1.
Fig. 3A is a diagram schematically illustrating a gas container conveyance cart to which an embodiment of the present invention is applied, and is a side view of the gas container conveyance cart shown in fig. 1.
Fig. 3B is a diagram schematically illustrating a gas container conveyance carriage to which an embodiment of the present invention is applied, and is a side view showing a state in which the front end side of the gas container conveyance carriage shown in fig. 3A is raised to incline the entire carriage.
Fig. 4 is a diagram schematically illustrating a gas container conveyance cart to which an embodiment of the present invention is applied, and is a rear view of the gas container conveyance cart shown in fig. 1.
Detailed Description
Hereinafter, a gas container transport cart to which an embodiment of the present invention is applied will be described with reference to the accompanying drawings as appropriate. In the drawings used in the following description, for the sake of easy understanding of the features, the features may be enlarged for convenience, and the dimensional ratios of the components are not necessarily the same as actual ones. The materials and the like exemplified in the following description are examples, and the present invention is not limited to these, and can be implemented by appropriately changing the materials and the like within a range not changing the gist thereof.
< Structure of carriage for transporting gas Container >
The structure of the gas container conveyance cart according to the present embodiment will be described in detail with reference to fig. 1 to 4.
Fig. 1 is a perspective view showing the overall configuration of a gas container conveyance cart 1 according to the present embodiment, and fig. 2 is a front view showing a state in which a mounting table 3 is grounded in the gas container conveyance cart 1 shown in fig. 1. Fig. 3A is a side view of the gas container transport cart shown in fig. 1, and fig. 3B is a side view showing a state in which the front end 1A side of the gas container transport cart 1 shown in fig. 3A is raised to incline the whole. Fig. 4 is a rear view of the gas container conveyance cart 1 shown in fig. 1.
The gas container conveyance cart 1 of the present embodiment is used to convey a gas bottle (gas container) B out of and into a gas bottle storage (storage space) provided in a cylinder block, not shown, for example. That is, the gas container transport cart 1 lifts the gas cylinder B and places the gas cylinder B on the base whose bottom portion of the cylinder block is raised, thereby storing the gas cylinder B in the gas cylinder storage in a vertically placed posture. The cylinder block supplies gas filled in the gas cylinder B to, for example, a semiconductor manufacturing apparatus.
Specifically, as shown in fig. 1 to 4, the gas container conveyance carriage 1 of the present embodiment includes a frame 2, a mounting table 3 provided in the frame 2, and a roller 4.
The mounting table 3 has a hole 31 that opens in a bottom plate 3a on which the gas cylinder B is mounted. The roller 4 has a slide mechanism 41 for moving the roller 4 in the horizontal direction along the table 3.
Further, the gas container conveyance carriage 1 of the present embodiment is configured such that when the roller 4 is positioned below the mounting table 3, the mounting table 3 is lowered so that the roller 4 protrudes from the hole portion 31 onto the bottom plate 3 a.
Further, the gas container conveyance cart 1 of the example shown in fig. 1 to 4 includes: a shock absorber 5 for absorbing impact, a stopper 6 for restricting travel of the gas container transport cart 1, an anti-tipping tool 7 for preventing tipping of the gas cylinder B, a handle 8 for traveling the gas container transport cart 1, and an adjuster 9 for raising and lowering a part of the frame 2.
The gas container transport cart 1 of the present embodiment is configured such that the gas cylinder B is carried in and out on the front end 1A side shown in fig. 1 and the like, and the rear end 1B side is mainly a position where an operator performs operations such as running the gas container transport cart 1. Therefore, in the present specification, for convenience, the front end 1A is sometimes expressed as the front side of the gas container transport carriage 1, the rear end 1B is sometimes expressed as the rear side of the gas container transport carriage 1, and the space between the front end 1A and the rear end 1B is sometimes expressed as the "front-rear direction", or the like.
In addition, in the horizontal plane, a direction orthogonal to the front-rear direction may be expressed as a "width direction".
The frame 2 supports each element of the structure gas container transport cart 1, and is configured to include wheels 25 for traveling with the gas cylinder B placed thereon.
In the illustrated example, a lower frame portion 21 formed in a substantially rectangular shape in a plan view is disposed at a lower portion of the frame 2, and when the lower frame portion 21 and a support portion 24 provided to extend rearward from a side frame portion 22 (described later) are in a plan view (plan view), wheels 25 are rotatably and rotatably disposed at four corner portions in total. The lower frame portion 21 functions as a base of the frame 2, and includes a mounting table 3, a roller 4, and the like, which will be described later.
The frame 2 is provided with a side frame portion 22 formed in a substantially rectangular shape in a plan view as shown in a front view of fig. 2, with the lower frame portion 21 as a base and extending upward from the lower frame portion 21. The side frame portion 22 is provided on the rear end 1B side of the lower frame portion 21. As described above, the support portion 24 is provided to extend rearward on the rear end 1B side of the side frame portion 22.
The frame 2 is wide as a whole as compared with the gas cylinder B, and is slightly longer in the front-rear direction than the width direction, and further the height of the frame 2 is about 2/3 of the height of the gas cylinder B. That is, the lower frame portion 21 and the side frame portion 22 of the frame 2 are wider than the gas cylinder B, and the front-rear direction of the lower frame portion 21 is slightly longer than the width direction. The side frame portion 22 of the frame 2 has a height of about 2/3 of the height of the gas cylinder B.
The mounting table 3 is provided on the lower frame portion 21 of the frame 2, and is used for mounting the gas cylinder B carried in and out of a cylinder block not shown. The mounting table 3 moves the gas cylinder B up and down by moving the lifting mechanism 35 in the vertical direction in a state where the gas cylinder B is mounted in a vertically mounted posture.
The lifting mechanism 35 may be a device including a hydraulic jack, for example, and the platform 3 is moved up and down by hydraulic pressure by operating the lifting handle 35 a.
Although the elevating mechanism 35 for elevating the platform 3 is not particularly limited, an electric motor, an air cylinder, or the like may be suitably used in addition to the hydraulic jack in consideration of practical use.
The mounting table 3 is disposed on the front end 1A side of the frame 2, i.e., on the opposite side of the rear end 1B of the lower frame portion 21 where the side frame portion 22 is provided.
The mounting table 3 shown in fig. 1 and the like has a substantially U-shape in plan view, and in the illustrated example, has a plurality of holes 31 that open to a bottom plate 3a on which the gas cylinder B is mounted. The mounting table 3 is configured such that a side wall portion 3d is formed so as to rise from the peripheral portion of the bottom plate 3a, and the side wall portions 3d are arranged at the rear end portion 3c and both sides thereof, while the side wall portion 3d is not formed at the front end portion 3b and is open only at this position.
In the example shown in fig. 1 and the like, the three adjacent holes 31 in total are arranged in parallel in two rows in the bottom plate 3 a. The hole 31 in the illustrated example is formed in a substantially slit shape so that a roller 4 to be described later can be inserted through the hole 31 and protrude from the bottom plate 3 a.
The rollers 4 are for sliding the gas cylinder B in the horizontal direction along the bottom plate 3a of the mounting table 3, and in the illustrated example, a total of three rollers 4 adjacent to each other are arranged in two rows in parallel, whereby a so-called roller conveyor is constructed by a total of six rollers 4. In the example shown in fig. 1 and the like, a total of six rollers 4 each including a freely rotatable free roller are provided. The rollers 4 illustrated in the figure are provided at positions corresponding to the holes 31 in the table 3 in the number corresponding to the holes 31. Each of the plurality of rollers 4 is provided to be rotatable by a rotation shaft not shown.
The diameter and number of the rollers 4 used in the gas container transport cart 1 of the present embodiment are not particularly limited, and may be appropriately selected depending on the specification of the gas cylinder B to be placed, and the like, so as to have the necessary strength and area.
The roller 4 has a slide mechanism 41 for horizontally moving the roller 4 in the front-rear direction of the frame 2 along the bottom plate 3a of the table 3. In the example shown in fig. 1 and 4, the roller 4 is arranged below the table 3 at a position corresponding to the hole 31 by the operation of the slide mechanism 41, and the roller 4 is in a state of protruding from the hole 31 onto the bottom plate 3a by the table 3 being lowered at the position.
The gas container transporting carriage 1 of the present embodiment is configured such that, with the above-described configuration, the gas cylinder B can be slid in the horizontal direction while being placed on the rollers 4 in a vertically-placed posture.
In the example described in the present embodiment, when the plurality of rollers 4 are retracted by sliding movement to a position deviated from the position below the platform 3, that is, to the rear end portion 3c side of the platform 3, the bottom plate 3a of the platform 3 is lowered to be in contact with the floor surface (floor surface) J as shown in fig. 2.
More specifically, the description is as follows. In a state where the table 3 is raised by the raising/lowering mechanism 35 as shown in fig. 3A, the plurality of rollers 4 are moved to the rear end portion 3c side of the table 3, and the plurality of rollers 4 are disposed below the bottom plate 3A of the table 3. In this state, as shown in fig. 2, the platform 3 is lowered by the elevating mechanism 35, and the bottom plate 3a is grounded to the ground (floor surface) J.
The gas container transporting carriage 1 of the example described in the present embodiment is structured such that, with the above-described structure, for example, the gas cylinder B placed on the floor surface (floor surface) J can be easily placed on the bottom plate 3a of the platform 3 that is in contact with the floor surface (floor surface) J.
The slide mechanism 41 slidably drives the plurality of rollers 4 in the front-rear direction along the slide shaft 42. Although not particularly limited, a manual robot, an electric motor, an air cylinder, a hydraulic cylinder, or the like may be suitably used as a driving source for the slide mechanism 41, taking practical use into consideration.
The slide mechanism 41 illustrated in the drawing is configured by a link mechanism including a manual lever 41a for switching the positions of the plurality of rollers 4 in the front-rear direction of the gas container conveyance carriage 1, a plurality of links not shown, and a plurality of joints not shown. Among these, a plurality of joints connect the links to each other so that the plurality of links can rotate freely. The end of the manual lever 41a is connected to one end of the links so that the links can rotate freely. The slide mechanism 41 slides the manual lever 41a in the horizontal direction to rotate the plurality of links in conjunction with each other, thereby extending and contracting the entire link mechanism in the front-rear direction of the gas container conveyance carriage 1 to slidably drive the plurality of rollers 4.
In the gas container conveyance carriage 1 of the present embodiment, it is more preferable that a plurality of holes 31 are disposed in the mounting table 3, and a plurality of rollers 4 are disposed so as to correspond to the plurality of holes 31. Accordingly, each hole 31 can be configured to be small, and a substantial area of the bottom plate 3a of the mounting table 3 can be sufficiently secured, so that the gas cylinder B can be mounted in a stable state.
The gas container conveyance carriage 1 of the present embodiment preferably includes a damper 5 for absorbing an impact generated when the mounting table 3 is lowered by the elevating mechanism 35, as in the example shown in fig. 1 and 4. The upper end 51 side of the damper 5 illustrated in the figure is fixed to a support column 71 of an anti-falling tool 7 described later in detail, and the lower end 52 side of the damper 5 is fixed to the lower frame portion 21. As the damper 5, for example, a damper composed of a gas damper or the like can be used.
Although the gas cylinder B placed on the mounting table 3 depends on the size and the like, since the weight is close to 150kg, when the mounting table 3 is grounded while the gas cylinder B is placed, it is preferable to slowly ground the mounting table 3 by the buffer action of the damper 5.
In the present embodiment, as in the example shown in fig. 1 and the like, it is more preferable to provide a stopper 6 for restricting the travel of the gas container conveyance carriage 1. As such a stopper 6, for example, a foot stopper (brake) that restricts the rotation of the wheel 25 by depressing the foot lever 61 as shown in the illustrated example can be used.
By providing the stopper 6, for example, when a reaction force is generated when the gas cylinder B is moved horizontally, the entire gas container conveyance carriage 1 can be prevented from being tilted rearward (toward the stopper 6).
In the present embodiment, it is more preferable to provide the falling prevention tool 7 for stably holding the gas cylinder B on the mounting table 3. As such a fall prevention tool, for example, a tool which is constituted by a chain or a belt and can fix and integrate the gas cylinder B to the frame 2 can be used. The fall prevention tool is not limited to the above-described belt-like member such as a chain or a belt, and may be a member capable of sucking and holding the gas cylinder B.
As the anti-falling tool 7, it is more preferable to adopt an anti-falling tool having the following structure as exemplified in fig. 1 and the like, the anti-falling tool including: a fixing rod 72 that is held so as to surround the side of the gas cylinder B; and a screw 74 that is screwed into a screw hole 73 provided in the fixing rod 72, and is provided so that an end (tip) not shown abuts against a side portion of the gas cylinder B. In the anti-falling tool 7 of the illustrated example, the fixing rods 72 are provided at two positions corresponding to the upper and lower portions of the gas cylinder B, respectively, and these fixing rods 72 are fixed to the support column 71. The support column 71 is fixed to the lower frame portion 21 of the frame 2. The fixing rod 72 illustrated in the drawing is composed of a back rod 72a fixed to the support 71 and an attachment/detachment rod 72b provided with the screw hole 73, and the back rod 72a and the attachment/detachment rod 72b are detachably assembled by an insertion/detachment fitting 72 c.
By providing the anti-tipping tool 7, the posture of the gas cylinder B placed on the mounting table 3 can be suppressed from being shaken, and therefore the gas cylinder B can be conveyed in a stable posture.
In the present embodiment, it is more preferable to provide a hook 23 for engaging at least a part of the anti-tipping tool 7 that is detachable from the gas container transport carriage 1, from the viewpoint of ensuring safety during, for example, the return travel of the gas container transport carriage 1 without the gas cylinder B mounted thereon. In this case, for example, the attachment/detachment rod 72b detachable from the rear surface rod 72a can be engaged with the hook 23 in a state where the screw 74 is screwed into the screw hole 73.
In the present embodiment, it is more preferable to provide a handle 8 for a worker to manually move the gas container transporting carriage 1. In the example shown in fig. 1 to 4, the handles 8 are provided at two positions on the rear end 1B side opposite to the side where the gas cylinder B is arranged in the side frame portion 22 of the construction frame 2. The gas container transporting carriage 1 of the present embodiment is provided with two handles 8 as illustrated in the drawing, and the operator can manually move the gas container transporting carriage 1 by operating the handles 8, thereby facilitating the transportation of the gas cylinder B.
In the present embodiment, the manual operation in which the operator operates the handle 8 and moves the gas container transport cart 1 by the rotation of the wheels 25 has been described as an example, but the present invention is not limited to such a manual operation. For example, the following structure may be adopted: that is, this configuration includes a rotation driving mechanism such as a motor, not shown, for rotating the wheel 25, and the gas cylinder B can be automatically conveyed by causing the entire gas container conveying carriage to travel by itself.
In the present embodiment, as shown in fig. 3A and 3B, the lower frame portion 21 of the frame 2 may be provided with an adjuster 9 for moving up and down at least a part of the frame 2. The adjusters 9 illustrated in the drawing are provided at two places in the lower frame portion 21 of the frame 2 so as to sandwich the mounting table 3 from the side. As shown in fig. 3B, the adjuster 9 can raise the side of the lower frame portion 21 of the frame 2 on the front end 1A on which the mounting table 3 is disposed by operating the lever 91 so that the lower end portion 92 protrudes from the lower portion of the lower frame portion 21, and then raise the mounting table 3.
By providing the above-described regulator 9, for example, when the height of the gas container conveyance carriage 1 is different from that of the cylinder block not shown, that is, when the bottom portion on the cylinder block side is slightly higher, the mounting table 3 can be slightly raised. Accordingly, when the gas cylinder B slides on the mounting table 3 and the rollers 4 and moves from the gas container conveyance cart 1 to the cylinder block, the gas cylinder B can be prevented from being caught by the bottom of the cylinder block, and can be safely delivered.
According to the gas container transporting carriage 1 of the present embodiment, by having the above-described configuration, it is not necessary to change the configuration of the gas cylinder and the cylinder block as in the conventional gas container transporting carriage (see patent documents 1 and 2 in the above-described prior art documents). Therefore, the structure of the cylinder cabinet and the gas cylinder is not depended on, and the gas cylinder cabinet can be suitable for carrying in and carrying out the gas cylinder to various cylinder cabinets.
Next, a step of carrying a new gas cylinder B into a cylinder block, not shown, using the gas container carrying cart 1 of the present embodiment, a step of carrying out a used gas cylinder B from the cylinder block, and effects thereof will be described.
First, the stopper 6 is depressed to bring a state of restricting the rotation of the wheel 25.
Subsequently, the plurality of rollers 4 are retracted by the slide mechanism 41, and the bottom plate 3a of the platform 3 is grounded to the floor surface (floor surface) J. At this time, first, the mounting table 3 is raised by operating the lift handle 35a provided in the lift mechanism 35. Next, the plurality of rollers 4 are slid and moved to the rear end 1B side by operating a manual lever, not shown, provided in the slide mechanism 41. Then, the bottom plate 3a of the platform 3 is lowered to a position where it is grounded to the ground (floor surface) J.
Next, the screw 74 is loosened, and the attachment/detachment rod 72b of the fixing rods 72 disposed at the two upper and lower positions is detached from the rear surface rod 72 a.
Next, in the above state, the gas cylinder B placed on the floor surface (floor surface) J is placed on the bottom plate 3a of the mounting table 3. At this time, first, after the gas cylinder B is placed on the bottom plate 3a, the side surface of the gas cylinder B is positioned by being abutted against the back rod 72 a. In the gas container conveyance carriage 1 of the present embodiment, since the step difference between the platform 3 and the floor surface (floor surface) J is very small, it is not necessary to lift the gas cylinder B as a heavy object, and the gas cylinder B can be easily placed on the platform 3.
Next, the attachment/detachment rod 72B is attached to the rear rod 72a so as to surround the side surface of the gas cylinder B, and the screw 74 is screwed into the screw hole 73, and the end of the screw 74 is brought into contact with the side portion of the gas cylinder B, thereby holding the gas cylinder B.
Next, the mounting table 3 on which the gas cylinder B is mounted is moved to the upper limit side of the lifting range thereof by operating the lifting handle 35a provided in the lifting mechanism 35. In this state, the plurality of rollers 4 are advanced to the leading end 1A side by the slide mechanism 41 by operating the manual lever 41A provided in the slide mechanism 41.
Next, the mounting table 3 is lowered by operating the lift handle 35a of the lift mechanism 35, and the plurality of rollers 4 are inserted through each of the plurality of holes 31 so that each roller 4 protrudes on the bottom plate 3 a. Thereafter, the height direction position of the platform 3 is fixed at this position by operating the lifter knob 35a again. Thereby, the gas cylinder B on the bottom plate 3a is in a state of being supported by the plurality of rollers 4 protruding from the plurality of hole portions 31.
Next, the stopper 6 is released by stepping on the foot-operated lever 61, and the gas container transport cart 1 is manually moved by operating the handle 8, so that the gas cylinder B is transported to a predetermined installation site such as a cylinder cabinet.
Next, the screw 74 is loosened, and the attachment/detachment rod 72b is detached from the back surface rod 72 a.
Then, the gas cylinder B is moved to a predetermined set position such as the bottom of the cylinder cabinet by sliding the gas cylinder B in the horizontal direction on the plurality of rollers 4. At this time, the gas cylinder B slides by the rotation of the plurality of rollers 4, and thus can be easily placed on the bottom of the cylinder cabinet without being caught.
When the used gas cylinder B is transported from the cylinder block, the gas container transport cart 1 may be operated in the reverse order to the above-described order.
That is, first, in a state where the wheels 25 are restricted from rotating by the stoppers 6 and the platform 3 is raised by the elevating mechanism 35, the plurality of rollers 4 are advanced by the slide mechanism 41 by operating the manual lever 41a provided in the slide mechanism 41, and the rollers 4 are projected from the holes 31 of the platform 3 to the bottom plate 3 a.
Next, the used gas cylinder B is slidably moved from the cylinder cabinet and pulled over the plurality of rollers 4. Next, as described above, after the side surface of the gas cylinder B is positioned by abutting the back rod 72a, the attachment/detachment rod 72B is attached to the back rod 72a so as to surround the side surface of the gas cylinder B, and the screw 74 is screwed into the screw hole 73 so that the end portion abuts against the side portion of the gas cylinder B to hold the gas cylinder B.
Next, after the gas container transport cart 1 is manually moved to the position where the used gas cylinder B is transported, the rotation of the wheels 25 is restricted by the stopper 6, and the lift handle 35a of the lift mechanism 35 is operated to raise the mounting table 3 on which the gas cylinder B is mounted. In this state, the plurality of rollers 4 are retracted to the rear end 1B side by the slide mechanism 41 by operating the manual lever 41a provided in the slide mechanism 41. Then, the bottom plate 3a of the platform 3 is lowered to a position where it is grounded to the floor surface (floor surface) J.
Next, the screw 74 is loosened to detach the two vertically disposed attachment/detachment rods 72b from the rear surface rod 72 a.
Then, the used gas cylinder B placed on the bottom plate 3a of the mounting table 3 is pulled out to the ground (floor surface) J.
This makes it possible to easily carry out a used gas cylinder B from the bottom of a cylinder block having a constant height, and to easily place the gas cylinder B on the placement table 3 of the gas container conveyance carriage 1, that is, on the plurality of rollers 4 protruding from the hole 31 of the placement table 3.
The gas container transporting carriage 1 of the present embodiment is not limited to the use for transporting the gas cylinder B, and can be widely used for transporting heavy objects that are difficult to transport by hand.
< Effect of action >
As described above, the gas container transporting carriage 1 of the present embodiment has the following structure: that is, the mounting table 3 of the gas cylinder B has a hole portion 31 opening on the bottom plate 3a on which the gas cylinder B is mounted, the roller 4 has a slide mechanism 41 for moving the roller 4 in the horizontal direction along the mounting table 3, and when the roller 4 is positioned below the mounting table 3, the mounting table 3 is lowered and the roller 4 protrudes from the hole portion 31.
With the above configuration, when the gas cylinder B is placed on the mounting table 3 of the gas container conveyance carriage 1, the roller 4 is retracted to the rear end portion 3c side of the mounting table 3 to ground the mounting table 3, so that the step difference between the mounting table 3 and the floor surface (floor surface) J can be minimized, and therefore the gas cylinder B can be easily placed on the mounting table 3. On the other hand, when the gas cylinder B is carried out from the cylinder block, the plurality of rollers 4 are moved forward to the front end portion 3B side of the mounting table 3, and the mounting table 3 is lowered so that the rollers 4 protrude from the hole portions 31, whereby the gas cylinder B can be placed on the plurality of rollers 4, and therefore, the gas cylinder B can be easily carried out.
Therefore, the structure of the cylinder cabinet and the gas cylinder B itself does not need to be changed, and the structure of the cylinder cabinet and the gas cylinder B is not required to be changed, so that the gas cylinder B can be applied to the carrying in and out of various cylinder cabinets, and the gas cylinder B as a heavy object can be easily carried in, carried out, and carried in without labor.
As described above, the embodiments of the present invention have been described with reference to the drawings, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.
Industrial applicability of the invention
The present invention provides a trolley for transporting a gas container, which can be applied to the transportation of gas cylinders into and out of various cylinder cabinets without depending on the structures of the cylinder cabinets and the gas cylinders, and can easily transport, and transport gas cylinders as heavy objects without requiring a large amount of labor. Therefore, the gas container transporting cart according to the present invention is suitable for use in transporting a gas cylinder to and from a cylinder block for supplying a source gas to a semiconductor manufacturing apparatus or the like.
Description of reference numerals
1\8230acart for transporting gas containers 8230
1A 823060 \ 8230a front end
2A 823060 \ 8230a rear end
2\ 8230a frame
21 8230a nd 8230a lower frame part
22- (8230); 8230and side frame
23-823060; 8230and hook
24- (8230); 8230and supporting part
25-823060, 8230and wheel
3 8230a method 8230a carrying table
3a (8230) (\ 8230), bottom plate
3b 823060 \ 8230a front end part
3c 823060 \ 8230a rear end part
3d 823060 \ 8230and side wall
31 823060, (8230), hole part
35-823060-8230while lifting mechanism
35a (8230); 8230am lifting handle
4\8230aroller wheel
41-823060-8230sliding mechanism
41a 823060, 8230a manual rod
5-823060-8230shock absorber
51, 823060, 8230a top end
52 (8230); 8230a lower end
6-823060-8230and position limiter
61\8230apole of 8230a pedal type
7\8230, 8230and tip-over preventing tool
71- (8230); 8230a prop
72 (8230); 8230and fixing rod
72a (8230) (\ 8230), back rod
72b (8230) \ 8230
73c 823060; 8230while metal part can be inserted or pulled out
8 8230a nd 8230a handle
9-823060-8230and regulator
91-8230two-layer rod for treating cervical spondylosis, 8230two-layer rod
92 (8230); 8230a lower end part
J823060; \8230; floor (floor surface)
Claims (12)
1. A trolley for transporting a gas container, comprising:
a frame having wheels for traveling with the gas container placed thereon;
a mounting table provided in the frame, the mounting table being moved in a vertical direction by a lifting mechanism in a state where the gas container is mounted in a vertically mounted posture, and the gas container being moved up and down; and
a roller for sliding the gas container in a horizontal direction along the mounting table,
the trolley for transporting the gas container is characterized in that,
the mounting table has a hole opened in a bottom plate on which the gas container is mounted,
the roller has a slide mechanism for moving the roller in a horizontal direction along the table,
when the roller is positioned below the table, the table is lowered so that the roller protrudes from the hole portion onto the base plate.
2. The carriage according to claim 1, wherein a plurality of the holes are disposed in the mounting table, and a plurality of the rollers are disposed so as to correspond to the holes.
3. The carriage as claimed in claim 1 or 2, wherein the table is lowered so as to be grounded when the roller is slid to a position deviated from a position below the table.
4. The carriage for transporting a gas container according to claim 1 or 2, further comprising: and a damper for absorbing an impact generated when the mounting table is lowered by the elevating mechanism.
5. The carriage for transporting a gas container according to claim 1 or 2, further comprising: and a stopper for limiting the travel of the gas container conveyance carriage.
6. The trolley for transporting a gas container according to claim 5, wherein the stopper is pedal-operated.
7. The carriage for transporting a gas container according to claim 1 or 2, further comprising: an anti-tipping means for holding the gas container.
8. The trolley according to claim 7, wherein the overturn preventing means includes: a fixing rod for holding the gas container in a manner of surrounding a side portion thereof; and a screw that is screwed into a screw hole provided in the fixing rod, and is provided so that the tip of the screw abuts against the side of the gas container.
9. The gas container conveyance cart according to claim 7, wherein the fall prevention tool includes a hook for engaging at least a part detached from the fall prevention tool.
10. The carriage for transporting a gas container according to claim 1 or 2, further comprising: a handle for manually moving the gas container carrying cart.
11. The gas container transport cart according to claim 1 or 2, wherein an adjuster for raising and lowering at least a part of the frame is further provided in the frame.
12. The gas container conveyance cart according to claim 1 or 2, further comprising a rotation drive mechanism for rotating the wheel, whereby the gas container conveyance cart can travel by itself.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-090015 | 2021-05-28 | ||
| JP2021090015A JP6995236B1 (en) | 2021-05-28 | 2021-05-28 | Cart for transporting gas containers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115402393A true CN115402393A (en) | 2022-11-29 |
Family
ID=80448022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210570408.7A Pending CN115402393A (en) | 2021-05-28 | 2022-05-24 | Trolley for conveying gas container |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6995236B1 (en) |
| CN (1) | CN115402393A (en) |
| TW (1) | TW202313443A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738667B (en) * | 2022-03-04 | 2023-12-01 | 贵州电网有限责任公司 | Gas cylinder transport fixing device |
| JP7428846B1 (en) | 2023-06-29 | 2024-02-06 | 大陽日酸株式会社 | cylinder cabinet |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0396962U (en) * | 1990-01-24 | 1991-10-04 | ||
| JP3942705B2 (en) * | 1997-10-15 | 2007-07-11 | 八千代工業株式会社 | Luggage cart |
| JP2001122126A (en) * | 1999-10-29 | 2001-05-08 | Nippon Sanso Corp | Cylinder carrying truck |
| US20040076501A1 (en) * | 2000-12-04 | 2004-04-22 | Mcgill Dennis E. | Apparatus for lifting and moving a workload |
| US7063496B2 (en) * | 2003-07-15 | 2006-06-20 | Toyota Motor Manufacturing North America, Inc. | Dolly device for loading containers |
| JP6784937B2 (en) * | 2016-10-03 | 2020-11-18 | 株式会社ジェイ・エム・エス | Holder for columnar heavy objects |
-
2021
- 2021-05-28 JP JP2021090015A patent/JP6995236B1/en active Active
-
2022
- 2022-05-20 TW TW111118956A patent/TW202313443A/en unknown
- 2022-05-24 CN CN202210570408.7A patent/CN115402393A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| TW202313443A (en) | 2023-04-01 |
| JP2022182450A (en) | 2022-12-08 |
| JP6995236B1 (en) | 2022-01-14 |
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