WO1981003482A1 - Movable load handling apparatus - Google Patents

Abstract

A movable load handling apparatus which includes L-shaped fork members (2) vertically movably provided between vertical posts (1) spaced a suitable distance apart, forward legs (7) projecting forward from both ends of a connecting rod (6) for connecting the lower ends of the posts (1), drive wheels (8) provided at the ends of the forward legs (7), a rear leg (14) projecting backward from the connecting rod (6), a steering wheel (19) provided at the forward lower end of the rear leg (14), a drive shaft (22) provided in the rear leg (14) to be pedalled by foot cranks (23), and a clutch (24) provided at the drive shaft (22) for transmitting the rotation of the drive shaft (22) to the drive wheels (8) or use it as a prime mover for elevating the fork members (2).

Description

 Technical information of traveling cargo handling equipment

 This invention can be run and unloaded by human power.

It is economical, inexpensive, easy to operate, and inexpensive.

Regarding all traveling cargo handling equipment ό.

 Background technology

 Conventionally, most of the traveling cargo handling equipment provided is

Is driven by an internal combustion engine.

 However, there is a problem.

With disadvantages'.

 ^ 2 inevitably requires a large amount of oil etc. as its power source

It consumes energy, and maintenance is costly. Conflict 3 requires skill in operation, and wrong operation can be dangerous.

There are certain drawbacks.

 The present invention has eliminated the disadvantages as described above.

It travels and unloads with human power, and its structure is

Simple and inexpensive, and uses petroleum etc. to maintain it

It is economical, inexpensive to manage, and easy for everyone

It can be easily operated

βυ "Λ ひ ヽ cr. Fi Disclosure of the invention

 In the present invention, an L-shaped fork member is vertically slidably provided between the vertical columns erected at an appropriate interval, and is disposed forward from both ends of a lower end connecting rod of the vertical column. The front legs are provided, and the front ends of the front legs ^: are respectively driven; wheels are provided; the above-mentioned 'vertical'; rear legs are provided horizontally behind the lower end connecting rod of the support, The rear leg is provided with a rotating shaft that is parallel to the lower end connecting and connecting rod of the vertical support and has a sprocket at substantially the center and both ends thereof. The driving wheels at the front ends of the front legs are connected by chains, and steering wheels are provided below the rear ends of the rear legs. The drive shaft connecting the rank is penetrated, and the drive shaft is connected to the drive shaft by itself. A clutch that rotates on the body and a sprocket that idles at a fixed position of the drive shaft and engages with the clutch are provided on both sides thereof, while a sprocket and the rotation are provided. The chain is suspended on a sprocket provided substantially at the center of the shaft, while the fork member is moved up and down by a chain suspended on the sprocket. And a handle for operating the steered wheels on the rear leg, and a clutch lever for switching the clutch.

B ϋ ベ 仁 0 ".PI

V:-GO And a driver's seat.

 Brief description of drawings

 FIG. 1 is an overall perspective view of the device according to the present invention, FIG. 2 is an enlarged perspective view of a main part thereof, FIG. 3 is a plan view showing its power system, FIG. 4 is an enlarged perspective view of a drive wheel unit, Fig. 5 shows an enlarged plan view of the drive shaft part, Fig. 6 shows another embodiment, and Fig. 7 shows an overall perspective view of the device of the chain block type, and Fig. 7 shows another embodiment. Fig. 8 is a plan view showing the power system, Fig. 9 is a circuit diagram showing the hydraulic system, and Fig. 10 is a side view of the device configured to be folded independently. FIG. 11 is a side view of a foldable apparatus showing another embodiment.

 BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

 Vertical posts 1 are provided at appropriate intervals, and an L-shaped fork member 2 is provided between the vertical posts 1 so as to be vertically slidable.

More specifically, a vertical groove 3 is provided on the inner surface of each of the vertical columns 1, and a vertical sliding frame 4 is fitted between the vertical grooves 3 so as to be slidable up and down. Hook 2 is provided at the upper end of the hook member 2, and the hook 2α is 4 hooked on the upper frame 4α. Therefore, the L-shaped fork member 2 is slide-independent along the upper frame 4, and the interval between the fork members 2 is notched. It can be adjusted according to the fork pocket of letter 5.

 Next, the lower end of the vertical support 1 is connected with a connecting rod 6, and a horizontal front leg 7 is provided in front of both ends of the connecting rod 6, and a driving wheel 8 is provided at the tip thereof. Can be The front leg 7 is preferably a square pipe, preferably as shown in the drawing.

 ^ 4 Figure 8 shows the drive wheels in an enlarged scale. 8 In other words, a U-shaped angle member 9 is attached to the tip of the front leg 7, and slots 10 are provided on both sides. A U-shaped angle member 9α having a drive wheel 8 and a sprocket 11 inside and a central axis 12 protruding on both sides is provided. 2 can be fitted to the long hole 10 of the angle material 9, and the angle material 9 can be moved in the distal direction by the ball 13 screwed to the angle material 9. It is composed.

 In addition, a rear leg 14 is provided horizontally behind the connecting rod 6 at the lower end of the vertical support 1.

The rear leg 14 is made hollow so that various devices described later can be built in, and has a relatively large diameter. A rotating shaft 15 is provided on the rear leg 14 in parallel with the connecting rod 6 at the lower end of the vertical column 1.

Sprockets 16 are fixed in the approximate center, and at both ends

In each case, the sprocket 17 is fixed.

 Then, the sprockets 17 at both ends and the front leg 7

Sprocket provided coaxially with the driving wheel 8 at the tip 1 1

Are connected by a chain 18 passing through the front leg 7.

 ¾ ぉ, the tension of the chain 18 is lir

 Properly adjusted in 1 3.

 A steering wheel 19 is provided below the rear end of the rear leg 14.

I can be.

 The upper end of the steered wheel 19 pivots on the rear leg 14.

On the rear leg 14 via the link 20

It can be operated by the provided handle 21

Be composed.

 A drive shaft 22 is inserted through the rear leg 14.

At each end, a foot crank 23 is attached.

It is.

 The drive shaft 22 is driven by a slide in that direction.

A clutch 24 that rotates integrally with the driving shaft 22 is provided.

In addition, on both sides, the fixed position of the drive shaft 22 is

 In other words, it is empty to slide.

,,, '. 25, 25 α are provided.

More specifically, as shown in FIG. 5, a spline 26 is formed between the clutch 24 and the drive shaft 22, and the clutch 24 is integrally formed with the drive shaft 22. It is configured to rotate and further slide in the axial direction of the drive shaft 22. Further, on both sides of the clutch 24, there are provided projections 27 for engaging with the recesses 27a provided on the inner surfaces of the above-mentioned brackets 25 _; 25, respectively. Then, the clutch lever 28 provided above the rear leg capital 14 is slid to the sprocket 25 or the sprocket 25α side, and Sprocket

 2 5 or sla. It is configured so that it can be arbitrarily engaged with the socket 25α.

 Then, a chain 29 is suspended on one of the sprockets 25 and the sprocket 16 of the rotary shaft 15 and a chain is suspended on the other sprocket 25a. The fork member 2 is particularly configured to move the fork member 2 up and down by means of a pin 30. In the figure, reference numeral 61 denotes a driver's seat.

 The details of the up and down movement of Fork Metropolitan Material 2 are described below.

Figures 1 to 3 show examples of winch types, Figure 6 shows examples of chain-opened cups, and Figures 7 to 9 show hydraulic systems. An example of a dark eve is shown. First, an example of a win type will be described.

 1 to 3 As shown in the drawing, a sprocket 31 is provided on the connecting rod 6 at the lower end of the vertical support 1 in a straight line with the other sprocket 25 α of the drive shaft 22. A chain 30 is suspended between the sprockets 25 and 31, a worm 33 is provided on the center axis of the sprocket 31, and a worm gear combined therewith is provided. A drum 35 for winding the wire is provided coaxially with 34.

 Then, the wire 36 from the drum 35 is suspended on the pulley 38 provided on the upper end frame 37 of the vertical support 1, and then on the pulley 39 provided above the vertical sliding frame 4. It is suspended, and the tip of the wire 36 is fixed to the upper end frame 37 of the vertical support 1.

 In the figure, reference numeral 40 denotes a brake drum provided coaxially with the worm 33, and reference numeral 41 denotes a brake screw provided on its own outside.

Specifically, the brake show 41 is fixed at one end to the connecting rod 6 at the lower end of the vertical support 1 and is routed around the brake drum 40, and the other end is at the rear leg. Part 14 Attached to the bracket 44 provided on the brake lever 43 whose appropriate position is secured by the shaft 42. The lower end of the brake lever: 43 is connected to the tip of the rear leg 14 In the direction of spring 4 5 To stretch.

 Therefore, the brake drum 40 is always pressed by the force of the brake spring 41.

 In other words, in this embodiment, even if the fork member 2 receives normal weight, the power gun is rotated in the reverse direction by the worm 33 and the worm teeth 34. The brakes above and brakes 41 and 41 are for safety reasons and the lowering speed of the heavy objects supported by the fork material 2 It is provided to control the situation.

 In this embodiment, the running mess is a clutch lever.

 Operate 2 8 to engage the projection 2 7 of the clutch 2 4 with the recess 2 7 of the sprocket 2 5 of the drive shaft 2 2, and remove the foot crank 2 3. When rotated, the clutch 24 and the sprocket 25 are rotated, and the rotating shaft 15 is further rotated through the chain 29 and sprocket 1. It is rotated, and the sprockets 17 and

The drive wheel 8 is rotated via the shaft 18 and the sprocket 11 so that it can be moved to an arbitrary position.

 Next, when lifting a heavy object with the fork member 2, operate the clutch lever 28 to make the clutch 24

cr.pi, 1.V 0 Engage the recess 27 of the sprocket 25α of the drive shaft 22 with the drive shaft 22 and loosen the brake lever 43.

By rotating the foot clamp 23, the clutch 24,

Sprocket 25α is rotated, and chain 30 and

3 3 ゥ 3 3 び び 3 3 び 3

The straight shaft 34 and the wire winding drum 35 are rotated.

Wire 36 is wound around drum 35

Lift the material 2 and the weight supported by it

And ^.

 Next, let's take a break from Leno, '143, and break.

Switch the clutch lever 28 for running with

Can be moved to any position.

 Fork member 2 and the heavy objects supported by it

The falling of the brake

All that is required is to reverse the step 23.

 Next, set the chain block K in the evening as shown in Figure 6 ^

Explain.

 As is well known, the chain block 46 is a reverse rotation prevention device.

By operating the operation chain 4 7

Heavy lifting by the hoisting chain 62

Can be lowered.

 Then, connect the above chain block 46 to the vertical support 1

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V. n αο) It is hung on the upper end frame 37, and the operation chain 47 is suspended on the sprocket 31 in the winch type embodiment. In this case, the worm 33 and the ゥ4. Drum 35 is not required.

 Then, the hoisting chain 62 may be connected to the upper frame 4α of the vertical sliding frame 4.

 The running and lifting and lowering operations of heavy objects in this embodiment are almost the same as those of the above-mentioned winch type. From: ^ .9 The figure will be described.

 In this case, as shown in the figure, as shown in the figure, a hydraulic cylinder 48 is set up on the connecting rod 6 at the lower end of the vertical support 1, and the tip of the screw rod 49 protruding upward is horizontal. A sprocket 51 is provided at each end of the sprocket 51, and a chain 52 is suspended from the sprocket 51, and one end of the chain 52 is connected to a vertical support. 1 and the other end is fixed to the upper frame 4a, of the vertical slide 4 having the fork member 2.

Further, to control the hydraulic cylinders 48, the sprockets 25 of the drive shafts 22 are used to control the hydraulic pressure of vane or plunger types by means of a chain 30 suspended. Switch 53 is configured to drive pump 53 The lysis is controlled by 5 4. In the figure, reference numeral 55 denotes a hydraulic tank.

 In this embodiment, the running operation is the same as the winch type and the chain block type, but the lifting and lowering operations of the heavy load are performed by switching the switching valve 54. This will be done.

 Fig. 1: 0 and Fig. 1 show an example in which the vertical support 1 and two fork members are freely foldable to facilitate transportation of the entire device.

 Figure 10 shows that the vertical support 1 is divided into two parts, the ends are overlapped, the appropriate position is fixed with a shaft 56 to make it freely bendable, and a separate bolt 57 When the bolt 57 is removed, the vertical column 1 is folded about the shaft 56 as a fulcrum.

 ^ 1 1 Similarly, the figure shows that the lower end of the vertical support 1 is fastened by the shaft 58 to make it freely foldable, and the detachable pole 59 is used to make it stand and fold freely. Further, the fork member 2 is also configured to be freely foldable around the axis 60.

 Therefore, in each case, the vertical column 1 is folded and compacted when the entire device is transported.

As described above, the present invention relates to the front and rear of the vertical support. α) The front leg 7 and the rear leg 14 are provided, and have a stable and safe effect.

 Industrial applicability

 The present invention uses petroleum or the like as its power source, and is therefore extremely economical, effective in the energy-saving era, and can be provided at a very low cost. It can be easily operated by anyone, is safe, and has great industrial applicability.

Claims

tL3) Range of request L-shape between vertical poles that are erected at appropriate intervals The forging member is slidable up and down, Horizontally forward from both ends of the connecting rod at the lower end of the support The front leg is provided with a drive leg. A moving wheel is provided, behind the lower connecting rod of the vertical support. Has a horizontal rear leg, and the rear leg has an upper It is parallel to the lower connecting rod of the vertical support and approximately at the center. Rotating shaft with sprockets at both ends and ends The sprockets at both ends and the tip of the front leg , The drive wheels are connected by chains, and A steering wheel is provided below the rear end of the leg, Drive shaft connecting foot clamps on both sides Penetrates the drive shaft and slides freely into the drive shaft. Body rotating clutch and both sides driven separately The sprocket that spins at the fixed position of the shaft and engages with the clutch A nut is provided, while a sprocket and the rotation A sprocket installed in the center of the shaft Chain was suspended on the other hand, while the chain was suspended on a sprocket. く as if to move the hook member up and down. In addition, on the rear leg, a handle for operating the steering wheel C ::. PI 0 A traveling loading and unloading device provided with a clutch lens for switching the clutch and a driver's seat.  νν *: 'ο