TWI646004B - Trolley - Google Patents

Abstract

A trolley, Ute means that four sides of the two body and the two pipe body respectively have four pivot holes, thereby pivoting four pulleys under the four pivot holes of the two pipes, the two bodies are respectively in opposite directions The inner side of the inner side is welded with two elastic members. The elastic member has a resilient portion extending downwardly corresponding to the tubular body. The elastic portion extends upwardly and has a guiding inclined surface. The guiding oblique surface extends forwardly to form a horizontal portion. The horizontal portion is equivalent to the twist of the tubular body, and the horizontal portion is downwardly extended with a vertical portion. When the trolley is deployed, the horizontal portion is aligned with the vertical portion and elastically fastened and fixed to the tubular body, when the trolley is folded. When the tubular body is lifted up the horizontal portion and the vertical portion along the guiding inclined surface, the trolley can be folded into a long strip shape, thereby reducing the space occupied by the storage trolley.

Description

Trolley

The trolley provided by the present invention is mainly applied to the trolley in a state where it is not used, and the trolley can be folded into a long strip shape, thereby reducing the space occupied by the storage trolley.

According to the traditionally used trolleys, they are widely used in various fields such as moving, warehousing, freight, and retail. Various types of trolleys are commonly used in the transportation or handling of goods and goods, in addition to reducing the transportation or handling of goods and goods. In addition to the number of people required, it is also possible to reduce the physical effort of manpower transportation and transportation, thereby improving the efficiency of transportation, transportation of goods and goods.

However, traditionally used trolleys, regardless of the type of trolleys, will occupy a considerable amount of space in the unused state. For the moving, storage, freight, and retail industries, effective space utilization cannot be achieved. For its existing problems and shortcomings that have yet to be resolved.

The inventor is currently engaged in the manufacture and design of related products, accumulating practical experience and experience for many years, and actively investing in the spirit of innovation and improvement in response to the existing problems and lack of traditionally used trolleys, and completing the trolleys that can be folded.

The technical means applied to solve the problem and the effect of the prior art are as follows: the trolley system is pivoted into a parallelogram by the two frames and the two tubes, and the two tubes are under the tube. The four sides of the square are pivotally provided with four pulleys, and the two frames are respectively welded with two elastic members on the inner side in opposite directions, and the elastic member is provided with an elastic portion corresponding to the downward extension of the tubular body, and the elastic portion Extending upwardly, a guiding inclined surface is provided, and the guiding inclined surface extends forwardly with a horizontal portion, the horizontal portion is equivalent to the twist of the tubular body, and the horizontal portion extends downwardly to have a vertical portion, when the trolley is deployed, the horizontal portion The portion is aligned with the vertical portion and elastically fastened and fixed to the tube body. When the trolley is folded, the horizontal and vertical portions are raised by the tube body along the guiding oblique surface of the elastic member, so that the horizontal portion and the vertical portion are horizontally and vertically The detachment from the tubular body can be folded into a long strip shape, thereby reducing the space occupied by the storage trolley, and having an improvement in efficiency, and achieving its main purpose.

In the above trolley, the frame body is an angle iron having an L-shaped longitudinal section.

In the above trolley, wherein the pipe body is a hollow pipe member having a longitudinal section and a mouth shape.

The above-mentioned trolley, wherein: the four pivot holes of the two frames and the four pivot holes of the two pipes are provided with four bushings, and the outer diameter of the bushing is equivalent to the inner diameter of the pivot hole of the frame body and the pipe body. The sleeve is threaded out of the pivot hole of the frame body and is raised by a gap to allow the elastic member to have an appropriate upper and lower displacement space when the trolley is unfolded or folded.

10‧‧‧ ‧ body

11‧‧‧ pivot hole

20‧‧‧ tube body

21‧‧‧ pivot hole

30‧‧‧Flexible parts

31‧‧‧ Fixed Department

32‧‧‧Flexible Department

33‧‧‧ Guided slope

34‧‧‧ horizontal department

35‧‧‧Vertical

40‧‧‧ bushings

50‧‧‧ pulley

51‧‧‧ wheel seat

52‧‧‧ screw

53‧‧‧ bearing

54‧‧‧shims

55‧‧‧ Nuts

A‧‧‧ gap

First Figure: A schematic diagram of a three-dimensional combination of the present invention.

Second Figure: A perspective exploded view of the present invention.

Third drawing: a schematic plan view of a plan view of the present invention.

The fourth picture is a schematic view of the B-B section of the third figure.

Figure 5: Schematic diagram of the E-E section in the third diagram.

Fig. 6 is a schematic view showing the state of the elastic member card fixing position when the invention is unfolded.

Fig. 7 is a perspective view showing the state in which the elastic member is lifted when the folding of the present invention is carried out.

Fig. 8 is a schematic view showing the continuous operation of the elastic member in the state of being folded when the present invention is folded.

Ninth view: FIG. 2 is a schematic diagram of the continuous action of the elastic member being lifted when the folding of the present invention is performed.

Fig. 10 is a perspective view showing the state in which the present invention is folded into a long strip.

Eleventh drawing: is a three-dimensional schematic diagram of a plurality of trolleys of the present invention that do not occupy space when stored.

In order to make it easier for those skilled in the art to understand the art to understand the construction contents of the present invention and the functional benefits that can be achieved, a specific embodiment will be listed and described in detail as follows: a trolley, please refer to The first and second figures are schematic views of the three-dimensional combination and the three-dimensional decomposition of the present invention. As shown in the third figure, it is a schematic plan view of the top view of the present invention. And the fourth and fifth figures are shown in the third diagram of the B-B and E-E profiles. The utility model mainly comprises: a second frame body 10, a second pipe body 20, two elastic members 30, a four-sleeve sleeve 40 and a four-sleeve 50; wherein: the two frame bodies 10 are arranged in parallel on the left and right sides, and the frame body 10 is a longitudinal direction. The angled iron having an L-shaped cross section is provided with two pivotal holes 11 at the front and rear ends of the frame body 10, and the two bodies 10 are provided as pivotal joints at the front and the rear, respectively. Two elastic members 30 are welded on the inner side to serve as elastically locking the two tubular bodies 20; the two tubular bodies 20 are arranged in parallel on the front and rear sides, and the tubular body 20 is a longitudinal a hollow tubular member having a mouth-shaped cross-section, wherein the left and right end faces of the tubular body 20 correspond to the two pivotal holes 11 of the frame body 10 and are provided with two pivot holes 21; the two elastic members 30 are provided There are two fixing portions 31. The two fixing portions 31 are welded and fixed to the inner side of the front and rear sides of the two frame bodies 10. The two elastic members 30 respectively extend downwardly to form an elastic portion 32 corresponding to the two tubular bodies 20 respectively. The guiding portion 34 extends upwardly and has a horizontal portion 34. The horizontal portion 34 is equivalent to the tubular body 20, and the horizontal portion 34 extends downward. There is a vertical portion 35 which is positioned on the outer side surface of the tubular body 20 when the trolley is deployed (as shown in FIG. 6); the outer diameter of the four-shaft sleeve 40 and the frame body 10 and the tubular body 20 The inner diameters of the pivot holes 11, 21 are equivalent, and the sleeve 40 is worn outside the pivot hole 11 of the frame 10, and a gap A is raised to allow the elastic member 30 to be unfolded or folded when the trolley is deployed. The body 10 has a suitable upper and lower displacement space; the four pulleys 50 are pivotally disposed in the four wheel base 51, and a screw 52 is disposed upwardly from the center of the wheel base 51. A bearing 53 is disposed between the wheel base 51 and the screw 52, so that the pulley 50 and the wheel base 51 can be freely rotated by three hundred and sixty degrees. The screw 52 is provided with a gasket 54 and is worn through the sleeve 40 and the frame. The body 10 and the pivoting holes 11, 21 of the tubular body 20 are then locked and fixed by a nut 54.

The present invention, which is a combination of the above-described respective component structures, provides a trolley for practical application: please refer to the seventh figure: the elastic member is lifted when the folding of the present invention is Stereoscopic diagram. As shown in the eighth and ninth drawings, the first and second schematic diagrams of the continuous movement of the elastic member when the folding member of the present invention is lifted are shown. And the tenth figure shows a three-dimensional diagram of the invention being folded into a long strip state. Since the sleeve 40 is threaded out of the pivot hole 11 of the frame body 10 and is raised by a gap A, the frame body 10 has an appropriate up and down displacement when the elastic member 30 is unfolded or folded. In the space, when the trolley is folded, the two tubular bodies 20 gradually lift up the two horizontal portions 34 and the two vertical portions 35 along the two guiding slopes 33 of the two elastic members 30, so that the two horizontal portions of the two elastic members 30 are provided. 34 and the two vertical portions 35 are disengaged from the card fixing position relationship of the two tubular bodies 20, that is, the trolley can be folded into a long strip shape, thereby reducing the space occupied by the storage trolley (as shown in FIG. 11).

In view of the foregoing, the present invention provides a trolley which, after being actually completed by the inventors and tested in repeated operations, proves that the functional benefits expected by the present invention can be achieved, and at the same time, the first creation that has not yet been seen in the present. With the industrial use value, it is true that it has met the requirements of the practicality and progress of the invention patent, and applied for the invention patent to the bureau in accordance with the provisions of the Patent Law.

Claims (4)

A trolley includes: two frames, two tubes, two elastic members, four sleeves and four pulleys; wherein: two end faces of the two frames are provided with four pivot holes, and the two tubes are provided as pivot joints, The two bodies are respectively welded with two elastic members on the inner side of the opposite direction for elastically fastening and fixing the two tubes; the two end faces of the two tubes correspond to the four pivot holes of the two frames There are four pivoting holes, four pulleys are disposed under the four pivoting holes; the two elastic members are provided with two fixing portions, and the two fixing portions are welded and fixed to the inner side of the opposite direction of the two frame bodies, and the elastic members correspond to An elastic portion extends downwardly from the tubular body, and the elastic portion extends upwardly to provide a guiding inclined surface, and the guiding oblique surface extends forwardly to provide a horizontal portion, and the horizontal portion is equivalent to the width of the tubular body, and the horizontal portion A vertical portion is extended downwardly. When the trolley is deployed, the horizontal portion is aligned with the vertical portion and elastically fastened and fixed to the tubular body. When the trolley is folded, the tubular body is lifted along the guiding oblique surface. Starting from the horizontal part and the vertical part, the trolley can be folded into a long strip The outer diameter of the four-sleeve sleeve is equivalent to the inner diameter of the pivot hole of the frame body and the pipe body, and the sleeve sleeve is worn outside the pivot hole of the frame body, and a gap is raised to allow the elastic member to be deployed in the trolley. Or when folding, the frame has an appropriate upper and lower displacement space. The trolley according to claim 1, wherein the frame body is an angle iron having an L-shaped longitudinal section. The trolley according to claim 1, wherein the pipe body is a hollow pipe member having a longitudinal section and a mouth shape. The trolley of claim 1, wherein: the four pulleys are pivotally disposed in the four-wheel seat, and a screw is disposed upwardly from a center of the wheel base, and a bearing is disposed between the wheel base and the screw to allow the pulley to The wheel base can be freely rotated by three hundred and sixty degrees. The screw is provided with a gasket and is worn by the pivotal hole of the frame body and the pipe body, and then locked and fixed by a nut.