JPH08165093A - Gas cylinder installation device - Google Patents

Abstract

PURPOSE: To provide easy installation of gas cylinders onto a machine base of an industrial vehicle or easy replacement work with little force. CONSTITUTION: This gas cylinder installation device 10, which is installed onto the machine base of an industrial vehicle, is provided with a cylinder deck member 5 for placing a gas cylinder 8, a lifting means 6 for lifting the placed gas cylinder 8 vertically, and a rotation connecting means 7 for rotating the cylinder deck member 5 and the lifting means 6 against the machine base. The lifting means is provided with an elastic member such as spring coil, a hydraulic or pneumatic actuator and so on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas cylinder mounting device for easily mounting a gas cylinder on a machine frame of an industrial vehicle such as a forklift truck.

[0002]

2. Description of the Related Art Conventionally, as a device for mounting a gas cylinder, as shown in FIG.
As shown in FIGS. 0 to 13, there is known a cylinder bracket 4 in which a bracket 2 is fixed to a rear end surface of a pillar 91 in a forklift truck and is supported by a shaft pin 93 on the bracket 2. A gas cylinder 8 filled with a gas such as LPG is mounted on the cylinder bracket 4.

That is, the conventional gas cylinder mounting device is shown in FIG.
As shown in FIGS. 0 to 13, first, the bracket 2 having a substantially U shape is attached to the rear end face side of the pillar 91 via the fixing member 2a. Then, the cylinder bracket 4 supported by the shaft pin 93 is attached to the bracket 2. Further, as shown in FIG. 11, the cylinder bracket 4 is attached on the upper surface of the weight 9 so as to be rotatable only in the horizontal direction A.

Further, the cylinder bracket 4 is rotatable in the horizontal A direction as shown in FIG. 13, so that the seat 96 can be prevented from interfering with the gas cylinder 8 when the engine hood 97 is opened in the B direction. This is because Further, as shown in FIG. 12, the cylinder bracket 4 is composed of two bars 40 for mounting the gas cylinder 8 and ear plates 43 provided at both ends thereof.

As shown in FIGS. 10 to 13, the one ear plate 43 has a shaft stopper plate 45 for fixing the cylinder bracket 4. The shaft stop plate 45 includes a fixing member 46.
two locking plates 46 fixed to the pillar 92 via a,
It is inserted between 460 and fixed by a hook type locking mechanism 47. That is, as shown in FIG.
The engaging projection 451 provided on the No. 5 is locked by the locking groove 471 of the locking mechanism 47. The gas cylinder 8 is fixed to the cylinder bracket 4 by the band 44.

[0006]

However, the conventional gas cylinder mounting device described above has the following problems. That is,
As shown in FIG. 13, the weight 9 in the forklift truck has a relatively large shape, and its height is generally 1 m or more.

The gas cylinder 8 is generally in the shape of a cylinder, and its weight is 15 kg or more. As described above, since the cylinder bracket 4 is rotatable in the horizontal direction A, the weight 9 itself is hardly obstructed when the gas cylinder 8 is replaced, but it is positioned above the weight 9. It is difficult for one operator to replace the gas cylinder 8 at the height of the cylinder bracket 4.

The present invention has been made in view of the problems of the conventional apparatus for mounting a gas cylinder, and the mounting or replacement of the gas cylinder on the base of an industrial vehicle can be easily performed with a light force. It is intended to provide a gas cylinder mounted device.

[0009]

SUMMARY OF THE INVENTION The present invention is a gas cylinder mounting device mounted on a machine frame of an industrial vehicle, the gas cylinder mounting device including a cylinder mounting member for mounting the gas cylinder, and a vertical movement of the cylinder mounting member. The gas cylinder mounting device is characterized in that it has an elevating means, a cylinder mounting member, and a pivotal connecting means for pivotally connecting the elevating means to a machine base.

What is most noticeable in the present invention is that the gas cylinder mounting device has the cylinder mounting member, the elevating means, and a pivotal connecting means for rotatably connecting both to the machine base. I am doing it.

The machine base is, for example, a pillar or weight of a forklift truck, and is a body portion having sufficient strength to support a gas cylinder via the cylinder mounting member.

Further, it is preferable that the elevating means has an elastic member whose elastic force acts in the anti-load direction of the gas cylinder. This makes it possible to easily move the gas cylinder up and down by utilizing the elastic force of the elastic member.

The elevating means is a cylindrical body provided with the pivotal connecting means, and an inner cylinder which is vertically movably inserted into the cylindrical body and has the cylinder mounting member fixed to the lower part thereof. And the elastic member having one end fixed to the upper part of the cylindrical body and the other end fixed to the lower part of the inner cylinder while penetrating through the cylindrical main body and the inner cylinder. The cylindrical body has a stopper protruding laterally, the cylindrical body has an elongated hole for guiding the stopper in the vertical direction, and the cylinder when the stopper is located at the upper end of the elongated hole. An upper lock portion for fixing the position of the inner cylinder with respect to the cylindrical body, and a lower lock portion for fixing the position of the inner cylinder with respect to the cylindrical body when the stopper is located at the lower end of the elongated hole. Is preferred.

Thus, the inner cylinder can be arranged in the cylindrical body, and the elastic member can be arranged in the inner cylinder, so that the elevating means can be made compact. Further, the position of the inner cylinder can be fixed by the stopper, and safety during work can be improved (see the embodiment).

The upper lock portion and the lower lock portion are preferably L-shaped holes communicating with the elongated holes. As a result, the lock operation and the lock release operation can be easily performed, and the structure can be simplified. Further, as the upper lock portion and the lower lock portion, there is also a means for inserting a pin penetrating the side surface of the cylindrical main body and the inner cylinder. In this case, the structure can be simplified.

The elastic member is preferably a coil spring for the following reasons. That is, since the coil spring has a simple structure, low cost, small size,
It has excellent characteristics such as light weight and high reliability, and it can be easily installed. Therefore, the elastic member is not limited to the coil spring and may be another member as long as it has the same action.

Further, it is preferable that the elastic member is provided with an adjusting portion for adjusting its elastic force. As a result, the elastic force can be arbitrarily adjusted according to the weight of the gas cylinder, and the gas cylinder can be smoothly moved up and down. As the adjusting part, there is a means for pulling the elastic member in its longitudinal direction (see FIG. 2).

Further, it is preferable that the elevating means has an actuator. This makes it possible to further facilitate the replacement work by automating the lifting and lowering work of the gas cylinder. The actuator is preferably a hydraulic cylinder or a pneumatic cylinder. As a result, the above automation can be easily realized.

The tubular body preferably has a hinge and a fixing member for rotatably mounting the hinge on a pillar or the like of an industrial vehicle. As a result, the gas cylinder mounting device can be easily and rotatably fixed to the pillar, and the horizontal rotation can be smoothed. As the fixing member, a split type member that can be detachably attached to a pillar or the like of a vehicle is preferable.

That is, according to the two-split system, the member can be easily processed, so that the cost can be reduced, and at the same time, the excellent action such as the easy attachment and detachment can be obtained. Therefore,
The fixing member is not limited to the two-part type as long as it has a similar action, and may be another member.

[0021]

In the gas cylinder mounting apparatus of the present invention, the elevating means and the cylinder mounting member are rotatably arranged with respect to the machine base. Therefore, the cylinder mounting member on which the gas cylinder is mounted can rotate in the horizontal direction integrally with the elevating means. Further, since the cylinder mounting member is connected to the elevating means using an elastic member, an actuator, etc., the gas cylinder can be moved up and down with a light force.

Further, when the gas cylinder is replaced, the elevating means is rotated and is not positioned on the weight. Therefore, the cylinder mounting member can be moved up and down immediately below the elevating means, and the operation is smooth.

When replacing the gas cylinder,
First, the elevating means and the cylinder mounting member are horizontally rotated through the rotational connecting means to a position where they do not vertically interfere with the industrial vehicle (see FIG. 6). This allows the gas cylinder to be easily lowered. Next, in this state, the gas cylinder is removed from the cylinder mounting member.

Next, when installing a new gas cylinder, the above-mentioned gas cylinder removal procedure is performed in reverse. That is, a new gas cylinder is mounted on the cylinder mounting member at the lower limit, and the cylinder mounting member is raised by the elevating means. Next, the cylinder mounting member and the elevating means are integrally rotated in the horizontal direction and fixed at a predetermined position, and the mounting work of a new gas cylinder is completed.

As described above, the apparatus for mounting a gas cylinder of the present invention can easily move a heavy gas cylinder up and down with a light force. Also, for gas cylinder replacement work,
It can be performed in a low position where work is extremely easy. Therefore, according to the present invention, it is possible to provide a gas cylinder mounting device capable of easily mounting or replacing a gas cylinder on the base of an industrial vehicle with a light force.

[0026]

【Example】

Example 1 A gas cylinder mounting device according to an example of the present invention will be described with reference to FIGS. As shown in FIG. 1, the gas cylinder mounting device 10 of the present example is mounted on the pillar 1 of a forklift truck, and the cylinder mounting member 5 on which the gas cylinder 8 is mounted and the lifting and lowering of the mounted gas cylinder 8 up and down. Means 6, rotation connecting means 7 for enabling the cylinder mounting member 5 and the elevating means 6 to rotate with respect to the machine base
And have.

As shown in FIG. 1, the elevating means 6 is a cylindrical main body 60 rotatably mounted on the pillar 1, and is vertically movably mounted in the cylindrical main body 60 and is attached to the lower portion 642. It is composed of an inner cylinder 64 to which the cylinder mounting member 5 is fixed.
Then, as shown in FIG. 2, the cylindrical main body 60 and the inner cylinder 6 are
4 penetrates these insides and also has an upper end 681.
Through the adjusting portion 690 described later, to the upper portion 601 of the tubular main body 60, the lower end 682, and the plate 692 described later.
And the lower portion 642 of the inner cylinder 64 via the split pin 695.
And an elastic member 68 fixed to.

Further, the inner cylinder 64 has a stopper 645 protruding laterally of the cylindrical body 60. On the other hand, the tubular body 6
As shown in FIGS. 1 and 2, 0 has an elongated hole 605 that guides the stopper 645 in the vertical direction, and an upper lock portion 607 and a lower lock portion 608 at the upper and lower portions of the elongated hole 605. ing.

As shown in FIG. 1, the cylinder mounting member 5 is composed of two bars 50 for receiving the gas cylinders 8 and ear plates 53 provided at both ends thereof. And the ear plate 5 on one side
As shown in FIG. 1, 3 is fixed to the lower portion 642 of the inner cylinder 64 by welding. Also, the other ear plate 530
As shown in FIG. 5 (a), a shaft stop plate 55 is provided on the shaft. Further, the other pillar 11 is provided with a locking plate 56 for inserting the pin 57 and fixing the shaft stop plate 55.

Further, the cylindrical body 60 has the rotating connecting means 7 for connecting to the fixing member 3, as shown in FIG. This pivotal connecting means 7 comprises a pair of upper and lower hinges 71, 7
2 and a hinge pin 73 inserted into the hinge receiving portion 33 of the fixing member 3. The upper and lower hinges 71 and 72 are provided with pin holes 74, and the reinforcing ribs 7 are respectively provided.
11, 721 are provided.

Further, the upper hinge 71 is provided with two lock holes 75 for engaging a lock pin 38 (FIG. 4) described later at an angle of 180 degrees with the pin hole 74 as the center. By the way, this 180 degree is an angle when the cylinder mounting member 5 is rotated from its set position to a position where it does not interfere with the weight 9 when the cylinder mounting member 5 is moved up and down, which will be described later. Therefore, the above-mentioned angle is not limited to 180 degrees, and any other angle may be used as long as the cylinder mounting member 5 can be rotated from its set position to a position where it does not interfere with the lifting and lowering.

Further, the upper lock portion 607 and the lower lock portion 608 provided on the upper portion and the lower portion of the elongated hole 605 of the cylindrical main body 60 are L-shaped communicating with the elongated hole 605 as shown in FIGS. It is a hole.

As shown in FIGS. 1, 3 and 4, the fixing member 3 includes a hinge receiving portion 33 for inserting the hinge pin 73 and connecting the hinges 71 and 72, and a lock pin 38 up and down. Pin cylinder 35 for movably fixing
And wrap it around the pillar 1 and bolt 361 and nut 362.
It has the fixing part 30 which fixes using. As shown in FIGS. 3 and 4, the fixing member 3 includes a body plate 32 provided with a bracket 330 and a fixing portion 30 having a claw portion 301 that engages with an engaging hole of the body plate 32.
It has a split structure.

As for the lock pin 38, as shown in FIG. 4, the pin head 381 is inserted into the pin cylinder 35 with the grip portion 382 facing downward, and the split pin 391 is used via the pin spring 393 and the washer 392. It is fixed. Further, the lock pin 38 is positioned on the same axis as the lock hole 75 each time the upper hinge 71 rotates 180 degrees around the hinge pin 74, and the pin spring 393 is provided.
It is arranged so as to be engaged with the lock hole 75 by the urging force of. In addition, the engaged state of the pin spring 39
It can be released by pulling the grip portion 382 against 3.

As shown in FIG. 2, the elastic member 68 is composed of a coil spring, and the upper end 681 thereof is
Adjustment unit 69 for adjusting the elastic force of the coil spring
Connected to 0. The adjusting portion 690 is composed of an elastic member 68.
The hook 67 engaging the upper end 681 of the plate and the plate 691
And a washer 694 and an adjusting nut 693. The lower end 682 of the elastic member 68 is fixed by the split pin 695 by inserting the plate 692 arranged in the lower portion 642 of the inner cylinder 64. Other configurations are the same as the conventional example.

Next, the function and effect of this example will be described. In the gas cylinder mounting device 10 of this example, the elevating means 6 is rotatably arranged with respect to the pillar 1. Therefore, the cylinder mounting member 5 on which the gas cylinder 8 is mounted can rotate in the horizontal direction integrally with the elevating means 6. Further, the inner cylinder 64 of the elevating means 6 is connected to the cylinder mounting member 5, and the upper portion of the inner cylinder 64 is inserted into the cylindrical main body 60 so as to be vertically movable. Therefore, the cylinder mounting member 5 on which the gas cylinder 8 is mounted can be raised and lowered integrally with the inner cylinder 64.

The elevating means 6 is provided with the elastic member 68 whose elastic force acts in the anti-load direction of the gas cylinder. Therefore, when the gas cylinder 8 is raised, the elastic force of the elastic member 68 can be used to perform the operation with a light force. Further, when the gas cylinder 8 is lowered, the elastic force of the elastic member 68 can be used to prevent the gas cylinder 8 from free fall due to its own weight, and the gas cylinder 8 can be easily lowered by gently pushing down.

Next, the function and effect of each member when replacing the gas cylinder will be described mainly with reference to FIGS. That is, as shown in FIG. 5, when removing the gas cylinder 8 arranged above the weight of the forklift truck, first, the pin 57 fixing the shaft stopper plate 55 is removed. Next, as shown in FIG. 4, the lock pin 38 engaged with one lock hole 75 of the upper hinge 71 is pulled downward, and as shown in FIG. 6, the elevating means 6 and the gas cylinder 8 are integrally formed. It rotates about 180 degrees in the horizontal direction.

As a result, the lock pin 38 is engaged again with the other lock hole 75, and the lifting means 6 and the gas cylinder 8 are stopped from rotating and are fixed. Further, in this state, since the stopper 645 is inserted and locked in the upper lock portion 607, the cylinder mounting member 5 cannot be lowered yet.

Next, the cylinder mounting member 5 is slightly lifted to remove the stopper 645 from the inverted L-shaped upper lock portion 607. In this way, as shown in FIG.
7 is released and the stopper 645 is positioned in the long hole 605. Then, the gas cylinder 8 is slowly lowered to a position where its own weight and the elastic force of the elastic member 68 are balanced. After that, the gas cylinder 8 is further pushed down, but the force required for it is extremely small and no difficulty is required. This allows the gas cylinder to be easily lowered.

Then, as shown in FIG. 8, the stopper 645 is moved slightly leftward from the elongated hole 605,
The inner cylinder 64 is fixed to the lower limit by locking the lower lock portion 608. This can prevent the inner cylinder 64 from rising due to the elastic force of the elastic member 68. Then, the gas cylinder 8 is removed from the cylinder mounting member 5 in the safe state thus locked.

Next, when installing a new gas cylinder 8, the above-described gas cylinder removal procedure is performed in reverse. That is, a new gas cylinder 8 is mounted on the cylinder mounting member 5 fixed at the lower limit. Next, when the stopper 645 is released from the lower lock portion 608 and positioned inside the elongated hole 605, the gas cylinder 8 slowly rises to a position where its own weight and the elastic force of the elastic member 68 are balanced.

After that, the gas cylinder 8 is further pushed up, but since the self-weight of the gas cylinder 8 is reduced by the elastic force of the elastic member 68, the gas cylinder 8 can be lifted with a slight force, and the lifting stroke is also small. Therefore, the work does not require any difficulty.

The stopper 645 is provided with the long hole 605.
When the upper end of the stopper 645 is reached, the stopper 645 is moved slightly to the right and lowered into the upper lock portion 607 to be locked. As a result, it is possible to prevent the cylinder mounting member 5 from descending within the elongated hole 605.

Then, by pulling the lock pin 38 downward, the cylinder mounting member 5 and the elevating means 6 are integrally rotated about 180 degrees in the horizontal direction and fixed at a predetermined position, and the new gas cylinder 8 is fixed. The mounting work is completed. The elastic member 6
In adjusting the elastic force of No. 8, the screwing depth of the adjusting nut 693 is adjusted with respect to the threaded portion 671 of the hook 67. As a result, the elastic member 68 is pulled or contracted, and the magnitude of the elastic force can be adjusted.

Further, in this example, the coil spring 68 is used as the elastic member. In other words, the coil spring has a simple structure, low cost, small size, light weight,
Moreover, it has excellent characteristics such as high reliability. for that reason,
The elevating means 5 has effects such as a simple structure, small size, and light weight. The fixing member 3 is of a split type. Therefore, member processing can be facilitated, cost can be reduced, and attachment / detachment to / from the machine base is easy.

As described above, the apparatus for mounting the gas cylinder 8 of this embodiment can easily move the heavy gas cylinder 8 up and down with a light force. Also, the gas cylinder replacement work can be performed at a low position where the work is extremely easy.
Therefore, according to this example, it is possible to easily mount or replace the gas cylinder on the machine base of an industrial vehicle such as a forklift truck with a light force.

Second Embodiment As shown in FIG. 9, the apparatus for mounting a gas cylinder of this embodiment uses a hydraulic cylinder 20 as an actuator as the elevating means instead of the elastic member of the first embodiment.
The cylinder mounting member 5 is connected to a lower end 252 of a piston rod 25 extending from the piston 24 of the hydraulic cylinder 20. Hydraulic pipes 210 and 220 are connected to the hydraulic cylinder 20. Others are the same as in the first embodiment.

In this example, the hydraulic cylinder 20 is used as the lifting means. Therefore, the replacement work can be further facilitated by automating the lifting and lowering work of the gas cylinder. In addition, the same effect as that of the first embodiment can be obtained. Although the hydraulic cylinder 20 is used as the actuator in this example, a pneumatic cylinder may be used instead.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a gas cylinder mounting device according to a first embodiment.

FIG. 2 is a partially cutaway exploded perspective view of a lifting unit in the gas cylinder mounting device according to the first embodiment.

FIG. 3 is a plan view of a fixing member in the gas cylinder mounting device according to the first embodiment.

FIG. 4 is a front view of a fixing member in the gas cylinder mounting device according to the first embodiment.

FIG. 5 is an operation explanatory view of the gas cylinder mounting apparatus according to the first embodiment in a gas cylinder mounted state.

FIG. 6 is an operation explanatory view of the cylinder mounting member rotation completion state of the gas cylinder mounting device according to the first embodiment.

FIG. 7 is an operation explanatory view of a state where the cylinder mounting member of the gas cylinder mounting device according to the first embodiment is being lowered.

FIG. 8 is an operation explanatory diagram of the gas container mounting device according to the first embodiment in a state where the cylinder mounting member is completely lowered.

FIG. 9 is an explanatory view of the lifting means of the gas cylinder mounting device according to the second embodiment.

FIG. 10 is a partially enlarged perspective view of a gas cylinder mounting device according to a conventional example.

FIG. 11 is a plan view of a gas cylinder mounting device according to a conventional example.

FIG. 12 is a perspective view of a gas cylinder mounting device according to a conventional example.

FIG. 13 is an explanatory diagram of use of a gas cylinder mounting device according to a conventional example.

[Explanation of symbols]

 1,11. . . Pillar, 5. . . Cylinder mounting member, 6. . . Lifting means, 60. . . Tubular body, 64. . . Inner cylinder, 68. . . Elastic member, 605. . . Slot, 607. . . Upper lock part, 608. . . Lower lock, 645. . . Stopper, 8. . . Gas cylinder,

Claims (7)

[Claims] 1. A gas cylinder mounting device attached to a machine frame of an industrial vehicle, wherein the gas cylinder mounting device comprises a cylinder mounting member for mounting the gas cylinder, and an elevating means for vertically moving the cylinder mounting member. A gas cylinder mounting device comprising: the cylinder mounting member and a pivotal connecting means for pivotally connecting the elevating means to a machine base. 2. The gas cylinder mounting apparatus according to claim 1, wherein the elevating means has an elastic member whose elastic force acts in a direction opposite to the load direction of the gas cylinder. 3. The elevating means is a cylindrical body provided with the pivotal connecting means, and an inner cylinder which is vertically movably inserted into the cylindrical body and has the cylinder mounting member fixed to the lower part thereof. When,
The tubular body has the elastic member penetrating through the tubular body and having one end fixed to the upper portion of the tubular body and the other end fixed to the lower portion of the tubular body. The cylindrical body has a stopper protruding laterally, the cylindrical body has an elongated hole for guiding the stopper in the vertical direction, and the cylindrical body when the stopper is located at the upper end of the elongated hole. An upper lock portion for fixing the position of the inner cylinder with respect to the inner cylinder, and a lower lock portion for fixing the position of the inner cylinder with respect to the cylindrical body when the stopper is located at the lower end of the elongated hole. The apparatus for mounting a gas cylinder according to claim 2, wherein: 4. The upper lock portion and the lower lock portion,
Characterized in that it is an L-shaped hole communicating with the elongated hole,
The gas cylinder mounting device according to claim 3. 5. The elastic member according to claim 2, wherein the elastic member is a coil spring.
The gas cylinder mounting device described. 6. The gas cylinder mounting device according to claim 1, wherein the elevating means has an actuator. 7. The gas cylinder mounting device according to claim 6, wherein the actuator is a hydraulic cylinder or a pneumatic cylinder.