JP2002020089A - Reach type forklift truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reach type forklift truck capable of stabilizing a load by preventing a vibration during running from directly transmitting to a long object even when the long object is placed on an outrigger for transportation. SOLUTION: This long object is transported in the state of being placed, so as to be bridged, on a deck 7 installed on the upper surface of a pair of outriggers 3 and 3 through shock absorbers 9a (elastic bodies). By this, a vibration during running is absorbed by the elastic bodies to prevent the vibration from being transmitted to the long object. Since the gravity center of the load is prevented from being moved by an oscillating motion, the load can be transported in a stable state of loading.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reach type forklift, and more particularly to a technique for securing stability when a long object is transported between a pair of outriggers.

[0002]

2. Description of the Related Art As shown in FIG. 6, a conventional reach-type forklift of this type has a body frame 100 on which a battery is mounted, a traveling device and a steering device are mounted, and both sides of the body frame 100 in the vehicle width direction. In the vicinity, an outrigger 200 protruding and fixed to the front of the vehicle body, a mast 400 movably provided in the front-rear direction along the outrigger 200, and a fork 500 moving up and down along the mast 400 are provided. .

[0003] Outriggers of this conventional forklift
As shown in FIG. 7, when the mast 400 moves in the front-rear direction along the outrigger 200,
00, and a prism member 201 to which the channel member 202 is fixed. A shaft 2 is attached to the tip of the prism member 201.
03 is fixed to the shaft 203 and the idle wheel 30 is attached to the shaft 203.
0 is provided rotatably.

[0004] Such a reach type forklift 100
In the above, the long object L was transported in the vicinity of both sides in the vehicle width direction on the upper surfaces of a pair of outriggers 200 and the fork 500 protruding forward.

[0005]

However, when the long object L is transported by the reach-type forklift 100 as described above, since the wheels 300 are rigidly mounted on the outrigger 200, vibration during traveling is reduced. Long object L
Is transmitted directly to the long object L in the directions of the double arrows A and B (FIG. 6).
And swing up and down. Due to the swinging of the long object L in the vertical direction and the horizontal direction, the position of the center of gravity of the long object L moves, and there is a problem that the loading state of the long object L becomes unstable.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. Even when a long object is carried on an outrigger, vibrations during traveling are not directly transmitted to the long object. It is an object of the present invention to provide a reach-type forklift having a structure in which a long object is stably loaded.

[0007]

In order to achieve the above object, an invention according to a first aspect of the present invention is directed to a pair of outriggers protruding forward near both sides in a vehicle width direction of a frame having driving and steering wheels. A reach type in which a play ring is rotatably provided at a tip end of the outrigger, a mast movable in the front-rear direction along the outrigger is provided, and a fork movable in a vertical direction is locked to the mast. In a forklift, a luggage stand capable of placing luggage in a state of bridging between a pair of outriggers is provided on an upper surface of the outrigger via an elastic body.

In the above configuration, the load is placed on the upper surfaces of the pair of outriggers via an elastic body so as to bridge the luggage stand, so that vibrations during traveling are absorbed by the elastic body. Vibration is not transmitted to the luggage placed in a state of bridging between a pair of luggage stands. Therefore, the load does not swing and the position of the center of gravity is kept at one place, so that the load state is stably maintained.

According to a second aspect of the present invention, in the reach type forklift according to the first aspect, the outrigger comprises:
The upper plate of the outrigger is formed in a U-shaped cross section,
In the missing part, the luggage stand is supported from below by an elastic body. In this configuration, since the upper plate of the outrigger for disposing the luggage stand is lacking in a U-shaped cross section, the arrangement of the elastic body supporting the luggage stand is facilitated, and the repair and adjustment of the elastic body can be easily performed. Can be.

According to a third aspect of the present invention, in the reach type forklift according to the first or second aspect, the elastic body is a spring or a shock absorber. In this configuration, the spring or the shock absorber is easy to manufacture and many commercially available products are easily available, so that the modification can be easily performed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A reach type forklift according to one embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an external configuration of a reach type forklift according to an embodiment, and FIG. 2 shows a plan configuration of the lift. The reach type forklift 1 includes a body frame 2, a pair of fixed outriggers 3, 3 protruding forward near both sides of the body frame 2 in the vehicle body width direction, and a rotatable tip of the outriggers 3, 3. , A mast 5 provided to be movable in the front-rear direction along the outriggers 3, 3, and a driving and steering wheel 6 rotatably mounted below the body frame 2. ing.

A lift bracket 51 which is moved up and down by the expansion and contraction of a rod of a lift cylinder (not shown) along the mast 5 is engaged with the mast 5. 52 is locked in the vehicle width direction. A rod 53R of a reach cylinder 53 disposed below the center of the width of the frame 2 is connected to the lower center of the mast 5, and the mast 5 moves in the front-rear direction along the outriggers 3, 3 by the expansion and contraction of the rod 53R. Go to

FIGS. 3 and 4 show a configuration in which a shock absorber is arranged on an outrigger. Playwheels 4 and 4 are rotatably mounted at the distal ends of the outriggers 3 and 3 projecting forward from the body frame 2. The outriggers 3 each include a prism member 31 and a channel member 32 fixed to one side surface of the prism member 31. A cutout is formed in a part of the upper plate portion of the prism member 31 in the front-rear direction from the rear of the attachment position of the play wheel 4 to the front of the body frame 2, so that the outrigger 3 is attached to the outrigger 3. The upper plate is formed in a U-shaped cross section without the upper plate. The luggage stand 7 covers the entire cutouts of the outriggers 3 and 3 and is supported by a shock absorber 9 a (elastic body) provided in the outrigger 3.

FIG. 5 shows another example of an outrigger, in which a spring is arranged. The outrigger 3 includes an L-shaped cross section member 35, a channel member 32 fixed to the side opening side of the L-shaped cross section member 35, and a channel member 32.
The luggage carrier 7 is disposed in a space formed between the channel member 32 and the L-shaped member 35 having a cross section. Is supported by a spring 9b so as to be vertically movable. The spring 9b is inserted into the pipe 37, and the pin 38 on the lower surface of the luggage stand 7 is inserted into the pipe 37. The luggage stand 7 is supported by the spring 9b while the luggage stand 7 is guided by the pipe 37.

According to the reach type forklift of this embodiment, the long object L is bridged between the pair of outriggers 3, 3 by the shock absorber 9a or the spring 9b which supports the luggage stand 7 so as to be extendable. When placed on the luggage stand 7, the vibration generated during traveling is absorbed by the shock absorber 9a or the spring 9b, and the long object L
Does not transmit vibration generated during traveling,
Does not swing, and the cargo stabilizes.

Further, the luggage stand 7 is provided with a portion where the upper plate of the outriggers 3 and 3 is missing, and the shock absorber 9a is provided.
Alternatively, since the structure is supported from below by the spring 9b, an assembling operation and an adjusting operation of the shock absorber 9a or the spring 9b can be easily performed.

The present invention can be variously modified without being limited to the configuration of the above embodiment. For example, in addition to the configuration that lacks the upper plate of the outrigger, an elastic body can be provided between the upper plate of the outrigger and the luggage stand without missing the upper plate of the outrigger, and the play ring can be provided with an elastic It can also be mounted via a suspension device consisting of:

[0018]

As described above, according to the reach-type forklift of the present invention, vibration during running can be achieved by a simple structure in which the luggage rack for loading luggage is mounted on the upper surface of the outrigger via the elastic body. Is prevented from being transmitted to the luggage on the luggage stand, the movement of the center of gravity due to the swinging movement of the luggage is prevented, and the transportation in a stable load state is possible.

Also, by attaching the luggage rack on which the luggage is placed to the elastic body at the portion where the upper plate of the outrigger is missing, the work of attaching and adjusting the elastic body can be facilitated, and the elastic body can be shocked. By using components such as absorbers and springs with many commercial products, it is possible to easily improve even already delivered vehicles.

[Brief description of the drawings]

FIG. 1 is a perspective view of a reach type forklift according to an embodiment of the present invention.

FIG. 2 is a plan view of the reach type forklift.

FIG. 3 is a partial perspective view of the outrigger according to the first embodiment;

FIG. 4 is a cutaway perspective view of a configuration in which a shock absorber is mounted on an outrigger.

FIG. 5 is a cutaway perspective view of a configuration in which a spring is mounted on an outrigger.

FIG. 6 is a perspective view showing a state in which a long object is carried by a conventional reach-type forklift.

FIG. 7 is a front sectional view of a conventional outrigger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reach type forklift 2 Frame 3 Outrigger 5 Mast 52 Fork 7 Luggage stand 9a Shock absorber (elastic body) 9b Spring (elastic body)

Claims (3)

[Claims] 1. A pair of outriggers protruding forward are fixed near both sides in the vehicle width direction of a frame having driving and steering wheels, and a free wheel is rotatably provided at a tip end of the outrigger. A reachable forklift in which a mast movable in the front-rear direction is provided along the mast, and a fork movable in a vertical direction is locked to the mast, wherein luggage can be placed in a state of bridging between the pair of outriggers. A reach-type forklift, wherein a luggage stand is mounted on an upper surface of the outrigger via an elastic body. 2. The outrigger according to claim 1, wherein the outrigger is formed in a U-shaped cross section in which an upper plate of the outrigger is missing, and the luggage stand is supported by the elastic body from below under the missing portion. Item 2. A reach type forklift according to item 1. 3. The reach type forklift according to claim 1, wherein the elastic body is a spring or a shock absorber.