JPH1053141A - Pallet truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain efficiency of member loading/unloading and carrying work by connecting a fixed bar to the root side of a U-shape fork so as to be extended across two fingers, and mounting a control bar in a detachable state on the tip part side so as to be extended across two fingers. SOLUTION: A pallet truck is provided with a fixed bar 9 bridging a gap between fixed parts 9A of root parts of two fingers 1A, 1B, and a detachable control bar 11 bridging a gap between groove parts of receiving parts 10A, 10B provided at the tip part opposed faces of the fingers 1A, 1B and respectively having the L-shape groove parts. After carrying a heavy member 7 by the pallet truck of such constitution, the pressure of a fork part lifting pump 5 is lowered by prescribed operation of a control bar 6, mounted on a bar body part 4A, so as to lower a fork 1 and to put down the member 7 on a floor face. The control bar 11 bridging a gap between the tip parts of the fingers 1A, 1B is detached from the receiving parts 10A, 10B, and the pallet truck is separated from the member 7 to complete movement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet truck used for transporting heavy members such as reels or drums.

[0002]

2. Description of the Related Art FIG. 11 is a perspective view of a pallet truck and a heavy member loaded on a pallet which are generally used. In FIG. 11, reference numeral 1 denotes a U-shaped fork on which a member 7 is loaded. Rear wheels 2A and 2B are provided on the lower surfaces of the tips of the fingers 1A and 1B, respectively, and a front wheel 3 is provided on the lower surface of the root to which the fingers 1A and 1B are connected.

A handle 4 comprises a rod 4A extending upward from the side of the front wheel 3 and a handle 4B at the tip of the rod 4A. The direction of operation of the front wheel 3 is controlled by rotating the handle 4B. The control lever 6 for controlling the fork lifting pump 5 is configured to pressurize the fork lifting pump 5 by tilting operation.
A is attached.

Next, a method of operating the pallet truck will be described. When transporting a reel or drum-shaped member 7 using this pallet truck, first,
After the members 7 are stacked on the pallet 8, the tips of the fingers 1A and 1B of the pallet truck are inserted into the side surface holes 8A of the pallet 8 while guiding them by rotating the handle 4.

Further, the fork raising pump 5 is pressurized by tilting the handle 4, and the pallet 8 is lifted and transported by raising the fork 1, and the handle 4 is operated. After transporting (pulling) the pallet 8 on which the member 7 is loaded to a predetermined place,
By performing a predetermined operation of the control lever 6 mounted on the rod 4A, the pressure of the fork raising pump 5 is lowered, the fork 1 is lowered, the pallet 8 is lowered, and the pallet truck is operated by operating the handle 4. Is pulled out of the pallet 8 and moved.

[0006]

However, in the above-mentioned conventional pallet truck, when the member 7 is transported, the member 7 is first loaded on the pallet 8, and then transported to a predetermined place by the pallet truck and arrived. Further, there is an operation of unloading the member 7 from the pallet 8, and there is a problem that the efficiency of the transport operation is low because the member 7 is loaded and unloaded on the pallet 8.

[0007] An object of the present invention is to provide a pallet truck with such a pallet truck that is efficient in loading / unloading and carrying members.

[0008]

In order to solve the above problems, a pallet truck according to the present invention is arranged so as to straddle two fingers on the base side of a U-shaped fork of a commonly used pallet truck. A fixed bar is connected to the U-shaped fork, and a control bar is detachably mounted on the front end side of the U-shaped fork so as to straddle two fingers.

According to the present invention, a pallet truck with a high efficiency of loading / unloading and carrying operations when carrying a heavy member such as a reel or a drum can be obtained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that two fingers, which are provided side by side with a rear wheel provided on the lower surface of the tip end, are connected to each other and a front wheel is provided on the lower surface thereof. A fork portion, a handle portion provided with a handle portion at an upper end thereof, and mounted to extend upward from a side portion of the front wheel and operated in a direction of the front wheel by a rotating operation, and a pressure is applied by tilting operation of the handle portion. In a pallet truck comprising a fork raising pump for raising the fork portion, a bar-shaped fixing bar is connected so as to straddle two fingers arranged side by side at the root portion of the fork portion, and a tip portion of the fork portion is connected. A bar-shaped control bar is detachably mounted so as to straddle two fingers arranged side by side. Since Dekiru unloading the transported article between the fixed bar and the control bar bamboo attaching and detaching the over,
This has the effect of providing a pallet truck with high efficiency of loading / unloading and transporting operations.

According to a second aspect of the present invention, in the first aspect of the present invention, a control bar is slidably or rotatably mounted on one finger, and a free end of the control bar is detachably attached to the other finger. By simply inserting one end of the control bar into the receiving part, the control bar can be attached and detached to load and unload goods, and the other end of the control bar can be attached to the tip of the finger. By holding the control bar slidably or rotatably, the control bar can be prevented from being lost.

According to a third aspect of the present invention, in the first or second aspect, the control bar is divided into two parts.
The two control bars are slidably or rotatably mounted on the respective fingers, and the control bars are held at the tip ends of the two fingers, respectively.
Has the same function as.

According to a fourth aspect of the present invention, in the second or third aspect, an operation lever connected by a connecting rod is provided near the handle portion so that the control bar can be slid or rotated. The operator can operate the control lever to bridge and remove the control bar between the two fingers while staying at the handle, so that the loading and unloading work is more efficient, safe, and easy to use. Pallet truck can be provided.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a plurality of mounting portions are provided such that a connecting position of the fixed bar can be changed at a predetermined pitch. A pallet with good workability that can be adjusted simply by inserting the fixing bar into the mounting part at a position suitable for the outer diameter of the reel or drum-shaped heavy member, which is provided on the finger. It has the effect that a truck can be provided.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the connecting position of the fixed bar is made variable by a feed screw. Pallet truck with good operability that the operator can adjust the position of the fixed bar to the position most suitable for the outer diameter of the reel or drum-shaped heavy member by rotating the operation handle of the feed screw while staying at the handle part side Has the effect of being able to provide

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. (Embodiment 1) FIG. 1 is a perspective view of a pallet truck according to a first embodiment of the present invention. In this embodiment, the same components as those described in the above-mentioned prior art are denoted by the same reference numerals. And the description is omitted.

As shown in FIG. 1, reference numeral 1 denotes a U for loading a conveyed object.
The two fingers 1A and 1B are provided with rear wheels 2A and 2B, respectively, on the lower surfaces of the tips of the two fingers 1A and 1B.
A front wheel 3 is provided on the lower surface of the base to which the front wheel 3 is connected, and a handle 4 comprises a rod portion 4A extending upward from the side of the front wheel 3 and a handle portion 4B at the tip thereof. The directional operation of the front wheel 3 can be performed by rotating the portion 4B, and the fork raising pump 5 is configured to be pressurized by the tilting operation. Further, the control lever 6 for controlling the fork raising pump 5 is provided with a rod. The attachment to the body part 4A is the same as in the related art.

A fixing bar 9 for bridging between fixing portions 9A at the roots of the two fingers 1A and 1B, and a finger 1
A receiving portions 10A and 10B each having an L-shaped groove are provided on opposing surfaces of the distal ends of A and 1B.
The control bar 11 bridging between the groove portions B is detachably held.

When the reel or drum-shaped heavy member 7 is transported by the pallet truck configured as described above, the following operation is performed.

First, the reel or drum-shaped member 7 whose center axis is horizontal with the floor is separated from the fingers 1A and 1B of the U-shaped fork 1 of the pallet truck with the control bar 11 removed from the radial direction. Inside the opening
The guide is inserted by rotating the handle portion 4.

Then, one of the lower portions of the outer peripheral portions of the member 7 is brought into contact with a fixed bar 9 which bridges the root portions of the fingers 1A and 1B, and then the distal ends of the fingers 1A and 1B below the member 7 are formed. The control bar 11 is fitted and fixed in the grooves of the receiving portions 10A and 10B so that the reel or drum-shaped member 7 does not roll out from the opening of the U-shaped fork 1.

Next, the fork 1 is raised by pressurizing the fork lifting pump 5 by tilting the handle 4 to raise the finger 1 of the fork 1.
The reel or drum-shaped member 7 is lifted by the fixed bar 9 and the control bar 11 attached to A and 1B.

After operating the handle portion 4 to transport (pull) the member 7 to a predetermined place, the control lever 6 mounted on the rod portion 4A is operated by a predetermined operation to raise the fork portion. The pressure of the pump 5 is reduced, the fork 1 is lowered, the member 7 is lowered to the floor, and the two fingers 1A, 1
By removing the control bar 11 bridging between the front end portions of the pallets from the receiving portions 10A and 10B and moving the pallet truck away from the member 7 by operating the handle portion 4, the movement is completed efficiently. You can do it.

(Embodiment 2) FIG. 2 is a perspective view of a pallet truck according to a second embodiment of the present invention.

This embodiment is the same as the first embodiment in that it has a fixing bar 9 for bridging between the fixing portions 9A at the roots of the two fingers 1A and 1B as shown in FIG. Has a holding portion 13 to which one control bar 12 is slidably attached at the tip of 1B which is one of the two fingers 1A and 1B, and has the above-mentioned control at the tip of the other finger 1A. It has a configuration having a receiving portion 14 having an L-shaped groove capable of holding the bar 12, and the same efficient transporting operation as in the first embodiment can be performed, and the control bar 12 can be mounted on the pallet truck. By being integrally mounted, there is no risk of the control bar 12 being lost, so that handling is easy.

As shown in FIG. 3, one control bar 15 is turned around the tip of one of the two fingers 1A and 1B instead of the configuration in which the control bar 12 slides. The same effect can be obtained by a configuration in which the receiving portion 16 having an L-shaped groove for holding the control bar 15 is provided at the tip of the other finger 1A so as to be movable.

(Embodiment 3) FIG. 4 is a perspective view of a pallet truck according to a third embodiment of the present invention.

As shown in the figure, the present embodiment has a fixing bar 9 for bridging between fixing portions 9A at the roots of two fingers 1A and 1B, as in the first embodiment. However, a control bar 17 of approximately the same size is slidably attached to the holding portion 18 of each of the tips of the two fingers 1A and 1B so as to protrude between the two fingers 1A and 1B. In addition to being compact and capable of carrying the same efficient transporting operation as in the first embodiment, the control bar 17 is integrally mounted on the pallet truck, so that the control bar 17 can be handled without risk of being lost. It's easy.

Instead of the above-mentioned structure in which the control bar 17 slides, a control bar 19 of substantially the same size is rotatably attached to each of the tips of the two fingers 1A and 1B as shown in FIG. Receiving portion 2 having an L-shaped groove capable of holding control bar 19
0, each of which has a protruding bridge between the two fingers 1A, 1B, or a T-shaped control having substantially the same dimensions at each of the tips of the two fingers 1A, 1B as shown in FIG. The bars 21A, 21B are connected to the respective shafts 21A1, 21.
Two fingers 1 are attached so as to be rotatable around B1.
A and 1B are projected and bridged.
The same effect can be obtained by providing the stopper portions 22A and 22B that receive the load.

(Embodiment 4) FIG. 7 is a perspective view of a pallet truck according to a fourth embodiment of the present invention.

In the present embodiment, as shown in the figure, a fixing bar 9 for bridging between fixing portions 9A at the roots of two fingers 1A and 1B is provided, and the tips of the fingers 1A and 1B are respectively provided. A T-shaped control bar 21 of approximately the same dimensions
A and 21B are mounted so as to project between the two fingers 1A and 1B by rotating about the respective support shafts 21A1 and 21B1 so that the two fingers 1A and 1B project. 22B is the same as that of the third embodiment, except that a support shaft 23 extending between the two fingers 1A and 1B is rotatably mounted near the handle portion 4, and one end of the support shaft 23 is provided. Operating lever 24 attached to the control bar 21A, 21
B is connected by connecting rods 25A and 25B.

When the reel or drum-shaped member 7 is transported using the pallet truck constructed as described above, the member 7 is transferred to the fingers 1A, 1 of the U-shaped fork 1.
B, while being guided into the opening made of B, the operating lever 24 is tilted to operate the connecting rods 25A, 25B.
Control bars 21A and 21B are connected to finger 1
The member 7 is fixed in the opening of the U-shaped fork 1 while the operator is on the handle 4 side without directly touching the control bars 21A, 21B. The present invention can provide a safer and more convenient pallet truck.

(Embodiment 5) FIG. 8 is a perspective view of a pallet truck according to a fifth embodiment of the present invention.

This embodiment is almost the same as that described in the fourth embodiment, as shown in FIG.
A plurality of mounting screw holes 1A1 and 1B1 are provided on the fingers 1A and 1B so that the mounting position of the fixing bar 9 for bridging between the roots of the two fingers 1A and 1B can be moved at a predetermined pitch.
The mounting position suitable for the reel or drum-shaped member 7 having various outer diameters can be selected and set.

The fixing bar 9 has a structure in which an attachment position is set by a screw 9A. As shown in FIG. 9, a fixing bar 26 bridging between the roots of the two fingers 1A and 1B is used. A similar effect can be obtained even when a plurality of attachment portions 27A and 27B having L-shaped grooves for selectively setting attachment positions are provided, and workability can be improved.

Further, as shown in FIG. 10, a fixing bar 28 for bridging between the roots of the two fingers 1A and 1B is attached to feed screws 29A and 29B on the fingers 1A and 1B, and the feed screws 29A and 29B. The operation handle 31 is rotated by providing the operation handle 31 on one of the 29B and the chain 30 and the gears 29A1, 29B1 (not shown) attached between the two feed screws 29A, 29B. By operation, the two feed screws 29A, 29B are turned into the gears 29A1, 29A.
9B1 and the chain 30 rotate the fixed bar 2
8 can be moved to an arbitrary position, and the operability is further improved.

As a method of transmitting the rotation of the feed screw, the same effect can of course be obtained by replacing with other general rotation transmitting means such as a combination of a gear and a rack or a combination of a pulley and a belt. is there.

[0038]

As described above, according to the present invention, for the U-shaped fork of a commonly used pallet truck, a fixing bar bridging between the roots of two fingers and a tip between the tips of the fingers are provided. By providing a detachable control bar for bridging the pallet truck, it is possible to provide a pallet truck with high efficiency of loading / unloading and transporting when transporting a heavy member such as a reel or a drum, and which is easy to use.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pallet truck according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a pallet truck according to the second embodiment.

FIG. 3 is a perspective view of another pallet truck.

FIG. 4 is a perspective view of a pallet truck according to the third embodiment.

FIG. 5 is a perspective view of another pallet truck.

FIG. 6 is a plan view of a main part of another pallet truck.

FIG. 7 is a perspective view of a pallet truck according to the fourth embodiment.

FIG. 8 is a perspective view of a pallet truck according to the fifth embodiment.

FIG. 9 is a perspective view of another pallet truck.

FIG. 10 is a perspective view of another pallet truck.

FIG. 11 is a perspective view of a conventional pallet truck.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 U-shaped fork 1A, 1B Finger 1A1, 1B1 Mounting screw hole 2A, 2B Rear wheel 3 Front wheel 4 Handle part 4A Rod body part 4B Handle part 5 Fork part raising pump 6 Control lever 7 Reel or drum member 9 , 26, 28 Fixing bar 9A Fixing portion 11, 12, 15, 17, 19, 21A, 21B Control bar 10A, 10B, 14, 16, 20 Receiving portion 13, 18 Holding portion 21A1, 21B1 Support shaft 22A, 22B Stopper portion 23 Support shaft 24 Operation lever 25A, 25B Connecting rod 27A, 27B Mounting part 29A, 29B Feed screw 29A1, 29B1 Gear 30 Chain 31 Operation handle

Claims (6)

[Claims] 1. A fork section having a front wheel connected to the bases of two fingers arranged side by side with a rear wheel provided on a lower surface of a front end portion, and a handle provided on an upper end thereof. A pallet truck comprising a handle mounted to extend upward from the side and operating the direction of the front wheel by a turning operation, and a fork lifting pump pressurized by raising the fork by tilting the handle. In the above, a bar-shaped fixed bar is connected so as to straddle over two fingers juxtaposed at the base of the fork, and a rod-shaped strut is straddled over two fingers juxtaposed at the tip of the fork. Pallet truck with a control bar detachably mounted. 2. The pallet truck according to claim 1, wherein a control bar is slidably or rotatably mounted on one of the fingers, and a free end of the control bar is removably mounted on the other finger. 3. The pallet truck according to claim 1, wherein the control bar is divided into two parts, and the two control bars are slidably or rotatably mounted on the respective fingers. 4. The pallet truck according to claim 2, wherein an operation lever connected by a connection bar is provided near the handle so that the control bar can be slid or rotated. 5. The pallet truck according to claim 1, wherein a plurality of attachment portions are provided on each finger so that a connection position of the fixed bar can be changed at a predetermined pitch. 6. The pallet truck according to claim 1, wherein a connection position of the fixed bar is changed by a feed screw.