JPH0211440Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a lift vehicle with a scale.

In order to feed measured raw materials into machines in the plastic molding or chemical industry, the raw materials are first measured using a scale and then transported by a lift vehicle.

In addition, the hopper of the machine requires taking out the raw material from the top of the lift car, weighing it again, and then feeding a predetermined amount into the machine, which takes time and effort. Therefore, as shown in FIG. 5, the applicant previously installed a lifting platform 4 on a guide post 2 on a frame 1 so as to be able to move up and down, and mounted an article support stand 5 on the lifting platform 4 by means of parallel links 3, 3. A measuring device 7 is installed between the lifting platform 4 and the support platform 5.
We proposed a lift vehicle with a measuring device that was connected and deployed (Utility Application No. 57-153861).

When the above-mentioned lift vehicle lifts the lifting platform 4 using an lifting drive device 8 such as a hydraulic cylinder device, the measuring device 7
The weight of the drum can D on the article support table 5 is displayed on the weighing device 7.

Although there was no problem in normal use of the above-mentioned lift vehicle, the support base 5 is attached to the tips of both parallel links 3, 3, and is supported by the lifting platform 4 via the links 3, so the support base 5 It was found that the lifting and lowering of the scale was an arcuate movement, and as a result, a component of force was applied to the scale in the lateral direction, resulting in a slightly low accuracy in the measured weight.

The technical problem that this invention aims to solve is that it is possible to accurately weigh and transport goods with a single lift vehicle, but also to be able to transport goods without placing an extra load on the weighing device during transport, and to be able to carry the goods without placing an extra load on the weighing device. It is similar to a lift truck in that it releases the items left behind.

The technical means taken to solve the above technical problem is to provide a lifting platform that can be vertically raised and lowered on the guide post of a lift vehicle, and to attach a lifting platform to at least one of the lifting platform or the guide post. An article support stand is provided that can be vertically raised and lowered independently, a measuring instrument is interlocked between the two stands, and a clamp member that removably clamps both stands is provided on either the lifting stand or the article support stand. It has been deployed.

When the lift table is raised, the article support table is vertically raised via the scale, and the articles on the support table can be weighed.

Since both the lifting platform and the support platform rise vertically,
Accurate measurement is performed without any lateral force acting on the measuring device between the two.

Furthermore, if the two stands are connected and fixed to each other by a clamp member, the measuring instrument will not be shocked by the unevenness of the road surface during transportation, and the measuring instrument will not be damaged.

The present invention will be specifically described below based on embodiments shown in the drawings.

A frame 1 of the lift vehicle is formed in a U-shape and has wheels 11 at the four corners.

A pair of vertical guide posts 2, 2 having guide grooves 21 formed on opposing surfaces thereof are arranged on the frame 1.

The two guide posts 2 are connected by a plurality of connecting rods 22, and the central connecting rod 22 has a hand handle 23 protruding rearward, and the guide posts 2,
A lifting platform 4 is provided above 2.

The lifting platform 4 is formed by protruding a hanging post 41 upward from the center of a substantially rectangular base frame 42.
Rollers 40, 40 protruding from both sides of the guide post 2 are fitted into the guide groove 21 of the guide post 2 so as to be rotatable.

Guide grooves 44, 44, into which rollers 50, 50 of a supporting table 5 (to be described later) are fitted, are formed on opposing surfaces of both vertical rods 43, 43 of the lifting table 4.

The hanging post 41 is connected to an elevating drive device 8, such as a manual pump type hydraulic cylinder device 81, provided on the frame 1 to move the elevating platform 4 up and down along the guide post 2. The upper end of the hanging post 41 is bent forward, and the measuring instrument 7 is suspended from the bent portion 45 via a hanging ring 46.

In front of the lifting platform 4, an article support platform 5 is suspended from the weighing device 7 via a hanging ring 47.

The article support stand 5 is formed by parallel receiving claws 52, 52 protruding forward on both sides of the lower end of a rectangular frame 51. On the back side of the rectangular frame 51, there are pairs of outer arm plates 53, 53, 53, 53 on the left and right sides, upper and lower.
and inner arm plates 54, 5 on the inside of each outer arm plate.
4, 54, 54 protrudingly provided, a roller 55 pivotally supported on the outer arm plate 53 is rotatably fitted into the guide grooves 21, 21 of the guide posts 2, 2, and a roller pivotally supported on each inner arm plate 54. 50 is the guide groove 4 of the lifting platform 4.
4, 44 so that it can roll.

Rolls 53, 53 are pivotally supported on the parallel receiving claws 52, 52 of the article support stand 5 in the longitudinal direction of the claw plate. A clamp member 9 that removably clamps the article support table 5 is provided on the lifting table 4.

The clamp member 9 can have various configurations, but for example, as shown in FIG. Connected at 92, one thick plate 91
An internally threaded cylinder 93 is provided protrudingly.

A long tightening shaft 95 having a threaded shaft 94 at its tip end is screwed into the internal threaded cylinder 93, and a handle 96 is provided at the base end of the shaft 95.

The base end side of the tightening shaft 95 is rotatably supported by a receiving plate 97 that projects laterally from the lifting table 4. A clamp plate 56 is provided in a protruding manner on the article support stand 5 to fit into both thick plates 91, 91 of the clamp member 9.

However, a lift vehicle was thrust into the drum can lying on its side from the bottom side of the drum can D, and the drive device 8
The lifting platform 4 is vertically raised by the. Lifting platform 4
The support stand 5 suspended via the scale 7 also rises vertically, the drum D rises from the floor, and the weight is indicated on the scale 7 in accordance with the weight of the drum.
The weight acting on the weighing device 7 is the sum of the weight of the article support stand 5 and the weight placed on the stand, regardless of the vertical height of the article support stand 5. Therefore, the weight of the support stand 5 can be taken as the wind weight. By subtracting the amount, it is possible to perform accurate weighing regardless of the lifting height of the article.

When the weighing is finished, the drum is lowered to the floor again, or the clamping shaft 95 of the clamp member 9 is rotated during the weighing state, and the clamp plate 56 of the support base 5 is fixed at the tip of the shaft. The lifting platform 4 and the article support platform 5 are connected and fixed.

As a result, the weighing device 7 is fixed between the lifting platform 4 and the support platform 5 and is not affected by load fluctuations, so the lifting platform 4 is raised to the required height, and the lift vehicle is pushed to place the drum in a predetermined place. It can be transported up to

At this time, the weight of the drum is fixed to the scale 7 as a static load, and the scale 7 will not be shocked due to unevenness of the road surface during transportation, and the scale will not be damaged.

By disposing rollers 57, 57 on the supporting surfaces of the pair of receiving claws 52, 52 that support the drum D, the drum D is rotated with the drum D floating above the floor, and the mouth hole of the drum is directed downward. It is convenient for the release of the contents.

Incidentally, when implementing the present invention, it is of course possible to provide a clamp member 9 on the support base 5 and clamp the support base 5 and the lifting base 4.

Furthermore, in the embodiment, the support stand 5 is connected to the guide posts 2, 2.
and the lifting platform 4 by means of rollers 50 and 55, but the invention is not limited to this.
Roller 55 on guide post 2, 2 side or lifting platform 4
Either one of the side rollers 50 can be omitted.

[Brief explanation of the drawing]

Figure 1 is a slope view of the lift vehicle, Figure 2 is a side view of the lift vehicle, Figure 3 is a plan view of the clamp member, and Figure 4 is a side view of the lift vehicle.
The figure is a partially cutaway rear view of the container of the lift vehicle, and FIG. 5 is a side view of a lift truck previously proposed by the applicant. 1...Frame body, 2...Vertical guide post, 4...
Lifting platform, 5... Article support platform, 7... Weighing device, 8...
... Lifting drive device, 9... Clamp member.

Claims (1)

[Claims for Utility Model Registration] A frame body 1 provided with moving wheels 11 and a vertical guide post 2, a base frame 42 that engages with the vertical guide post 2 so as to be movable up and down, and a base frame 42 that protrudes upward from the base frame 42. A lifting platform 4 that is equipped with a hanging post 41 and moves up and down along the vertical guide post 2; an elevator driving device 8 that is connected between the frame body 1 and the lifting platform 4 and moves the lifting platform 4 up and down; and an elevator platform 4. Alternatively, an article support stand 5 is engaged with at least one of the guide posts 2 so that it can be vertically raised and lowered independently of the lifting and lowering of the lifting table 4, and an article support stand 5 is provided between the upper part of the hanging post 41 and the article support stand 5. A weighing device 7 is provided to connect the article support stand 5 to the hanging post 41, and a clamp member 9 is provided across the lifting table 4 and the article support stand 5 to releasably clamp both the stands 4 and 5. Lift vehicle with scale consisting of.