TWI716653B - Backward folding table and chair storage cart - Google Patents

Abstract

A rear-tilting folding table and chair storage cart, comprising: a pair of legs, each of the legs is like a frame, arranged vertically, the bottom of each leg is connected to a pulley by a wheel frame at the front and rear; Position rod; there is a loading frame, which is positioned between the bipods at a high and low angle in the front. The loading frame has two side frames. The front and rear ends of the side frames face each other with a front cross rod and a rear cross rod, in front of each other. A hollow front telescopic rod and a rear telescopic rod are inserted between the transverse sleeve rod and the rear transverse sleeve rod; the width of the load frame can be adjusted horizontally, relative to the front transverse sleeve rod and the rear transverse sleeve rod, the front telescopic rod and the rear The telescopic rod is provided with several screw holes for matching and positioning with a fixed screw; on both sides of the frame there is a load board of non-rigid material; there is also a back frame, which is connected to the two sides of the rear end of the load frame , The lower sleeve rod is connected to the rear end of the side frame corresponding to the lower sleeve rod. There is an upper sleeve rod relative to each lower sleeve rod. The upper end of the upper sleeve rod forms a hook-shaped holding part behind the upper sleeve rod. One of the transverse sleeve rods is an upper transverse sleeve rod. A hollow telescopic rod and an upper telescopic rod are inserted between the two upper and lower sleeve rods and the upper transverse sleeve rod, so that the backrest frame can be connected up and down and can be adjusted horizontally. Width, relative to the upper horizontal sleeve rod and the upper telescopic rod, a number of screw holes are provided to match and position with a fixed screw respectively; a pair of fixed screws is connected in front of the two upper and lower sleeve rods with a non-rigid material backrest board. Put down the storage objects on the loading board close to the backrest gently, that is, they will automatically lean together tightly without falling or slipping! It is an ergonomic storage cart.

Description

Backward folding table and chair storage cart

The invention relates to a storage cart, in particular to a rear-tilting folding table and chair storage cart.

Folding tables and chairs are frequently used equipment in daily life, especially restaurants, business premises, institutions, schools, and corporate groups. When banquets, meetings, parties, exhibitions,..., it depends on the space, number of people, and flexible equipment. . The inventor needs to install some movable folding tables and folding chairs because of the catering business. Among them, the biggest problem facing folding tables and chairs is when they are transported; they need to be transported one by one, which is time-consuming and laborious. The long folding tables 1A and 2B (2B contains an intermediate board) as shown in the first pictures A and B, the folding tables 3C (eight-shaped table legs) and 4D shown in the first C and D pictures, the first E. Folding chairs 5E and 6E shown in Figure F, and folding ladder 7G shown in Figure G.

They all have common problems; when they are stacked, they tend to fall when they stand too high; they tend to slip when they stand too obliquely. It’s easy to stagger "Neither standing nor lying down"! The more the number, the bigger the problem! When transporting; if there is no suitable storage cart, it has to be transported one by one, which is very hard. Existing storage carts mostly use horizontal horizontal stacking. Although they can be stacked very high, the lower the load, the greater the weight and easy damage. If the table and chair are stacked relative to each other, non-planar contact, but point contact, they will shake and fail to stack firmly , Because the point contact part bears all the weight, it is more likely to cause damage and danger, and it is impossible to pull out any table and chair other than the top. The most serious is; horizontal level When stacking, each table and chair must be rotated by 90 degrees, resulting in a moment between the force point of the wrist and the center of gravity of the table and chair, and the stack must be stacked with both hands. As for the vertical stacking, although the cart can be easily stored up and down, it can also avoid the shortcomings of excessive stacking and easy damage to the tables and chairs. But the general vertical storage cart; if there is no limit function, it is still easy to tip and slip. If the vertical storage cart with the limit function has the problem of limited style, size, specification and high manufacturing cost.

It can be seen that the conventional technology does not perfectly solve the storage and movement products of folding tables and chairs. In order to provide products that are more in line with actual needs, the inventor has conducted research and development to solve the problems that are easy to occur in the use of conventional knowledge.

The main purpose of the present invention is to provide a storage cart for storing various objects such as folding tables, chairs, ladders... When storage objects are not used or stored; they can be stacked and stored on the present invention in an orderly manner, which is neat and beautiful. When it needs to be moved, deployed, or recycled, the invention can be used to move to any position, which is easy and convenient, time-saving and labor-saving, and the more the number, the more obvious the benefit. It also has a storage cart with adjustable width to match storage items of different widths. It is an ergonomic storage cart.

In order to achieve the above-mentioned purpose, the structure of the present invention is: a pair of vertically connected load frame and backrest frame, which are connected obliquely between a pair of rollable legs, which can carry and store objects and adjust the width Features. The load frame has a pair of side frames with adjustable width telescopic rods, and the back frame has a pair of upper and lower sleeve rods and a connecting rod between them. The upper horizontal sleeve rods should be opposite to each other with the adjustable width upper telescopic rods. A hook-shaped push part is provided at the end of the sleeve rod on the back frame. A non-rigid material loading board and backrest board are added on the loading frame and in front of the backrest frame; provide cushioning, noise reduction, and anti-slip effects and increase the loading contact area. The loading frame is slightly inclined (-10~20 degrees) fixed in the bipod, the front is high and the back low. By tilting the storage objects; such as folding tables, chairs, ladders, etc., change the position of the center of gravity. The storage cart's loading frame and loading board bear most of the vertical weight, while the backrest frame and backrest board bear a small part of the horizontal The force is divided, so that the storage objects are in a stable vertical leaning state. The tripods on both sides are a ring-shaped frame; in addition to providing a slightly inclined object frame fixing and strengthening function; the inner edge of the tripod also provides the left and right side limit function of the tripod or bottom edge of the storage object, which can be stored The objects are confined to the tripods on both sides. With the leaning function of the backrest frame, the stored objects can be easily and automatically guided to stack together stably and neatly. Corresponding hollow horizontal rods are provided on the front and rear ends of the bipod and the upper edge of the backrest frame. Corresponding telescopic rods are inserted in each hollow horizontal rod, which can be based on the width of the tripod or bottom edge of the object to be stored Adjust the width and fix the position with positioning bolts so that it can accommodate objects of various widths. In addition, the backrest frame section is connected in series with the lower cover rod of the backrest upper and lower cover rods, which are mainly temporarily separated during packaging and transportation to reduce packaging volume and freight. They are connected only when they are used, and the backrest plate is locked for use. At the bottom of the bipod, a wheel frame is connected to a pulley to facilitate movement, so that the rear-tilting storage cart of the present invention can be automatically arranged and stacked according to the sequence when a large number of storage objects of the same style are stored. And carry items in a vertical state; for example, folding tables and chairs whose center of gravity is more consistent with the direction of the force applied by the wrist, and there is no disadvantage that the torque generated when rotating the storage item increases the force of the hand. When placing it on the storage cart, you only need to place the folding table legs and chair legs on the loading board and the loading frame; gently let go near the backrest or in front of the previous folding table or chair, and it will automatically tilt tightly. Leaning together, it won't fall or slip!

In order to enable your reviewer to further understand the technology, means, and effects of the present invention to achieve the intended purpose, a preferred and feasible embodiment is given, and detailed description with the drawings is as follows. I believe the purpose and features of the present invention And the advantages, you can get an in-depth and specific understanding.

11: tripod

12: Wheel frame

13: pulley

14: side frame

15: Front telescopic rod

10: loading board

16: lower rod

17: Middle telescopic pole

18: upper sleeve

19: Promotion Department

20: Rear telescopic rod

21: Upper cross bar

22: Upper telescopic pole

23: Front cross bar

24: Rear cross bar

25: backrest

26: fixing screw

27: Screw hole

28: loading frame

29: backrest frame

30: table legs

31: Tripod limit rod

32: Ladder foot

1A: The first type of folding table

2B: The second type of folding table

3C: The third type of folding table

4D: The fourth type of folding table

5E: The first folding chair

6F: The second type of folding chair

7G: Folding ladder

8H: Rear-tilting folding table and chair storage cart

The first A is a three-dimensional view of the first type of long folding table when folded and when it is unfolded.

The first picture B is a three-dimensional view of the second type of long folding table when folded and when it is unfolded.

The first picture C is a three-dimensional view of the first type of folding table when folded and when it is unfolded.

The first D is a three-dimensional view of the second type of folding table when folded and when it is unfolded.

The first E is a three-dimensional view of the first type of folding chair when folded and when it is unfolded.

The first F is a three-dimensional view of the second type of folding chair when it is folded and when it is unfolded.

The first G is a three-dimensional view of the conventional folding ladder when it is folded and when it is unfolded.

The second figure is a three-dimensional exploded view of the present invention.

The third figure is a front and rear perspective view of the present invention.

The fourth figure is a perspective view of the third figure of the present invention when adjusted to both sides.

The fifth figure is a perspective view of the implementation of the third figure of the present invention when the first A figure is installed.

Figure 6 is a perspective view of the implementation of Figure 3 of the present invention when Figure 1 B is attached.

The seventh figure is a perspective view of the implementation of the third figure of the present invention when the first C figure is installed.

The eighth figure is a perspective view of the implementation of the third figure of the present invention when the first D figure is installed.

The ninth figure is a perspective view of the third figure of the present invention when the first E figure is installed.

The tenth figure is a perspective view of the implementation of the third figure of the present invention when the first F figure is installed.

Figure eleven is a perspective view of the implementation of the third figure of the present invention when the first G figure is installed.

For example, the first A to the first G are three-dimensional views of conventional folding tables, chairs, ladders and other commonly used objects with folding functions when they are unfolded and folded up, and the second to fourth figures are structural illustrations of the present invention. Figures 5 to 11 are perspective views of conventional folding tables, chairs, ladders, and other commonly used objects with folding functions such as the first A to first G diagrams in the present invention.

As shown in the second figure, the present invention is a rear-tilting folding table and chair storage cart, which has a loading frame 28 as a bottom platform for loading; the loading frame 28 can be used for carrying and storing objects, and can be used for storage. The width of the object is adjusted to the width of the loading frame 28. The loading frame 28 is composed of two side frames 14 and telescopic rods 15, 20. One of the rear ends of the loading frame 28 and one of the side frames 14 are connected to one of the loading frames 28. For the lower sleeve rod 16, make the backrest frame 29 perpendicular to the load frame 28, the backrest frame 29 has the same width adjustment function as the load frame 28; the backrest frame 29 for storing objects to lean against, the end of the rod 18 on the backrest frame 29 Set as a hook-shaped holding portion 19. The upper surface of the side frame 14 and the front surface of the backrest frame 18 are provided with a load board 10 and a backrest board 25 made of non-rigid materials to provide cushioning, noise reduction, and anti-slip effects and increase the load contact area. The loading frame 28 is slightly inclined (-10 to 20 degrees) and fixed in the bipod 11, high in the front and low in the back. By tilting storage objects, such as folding tables, chairs, ladders, boards, etc., to change the position of the center of gravity, the loading frame 28 and the loading board 10 of the storage cart bear most of the vertical weight. The backrest frame 29 and the backrest plate 25 bear a small part of the horizontal component force, so that the storage objects are in a stable vertical leaning state. The tripod 11 on both sides is a frame-shaped vertical frame; in addition to providing a slightly inclined object frame 28 for fixing and strengthening; the tripod 11 is equipped with a tripod limit rod 31, which provides a tripod or bottom for storing objects The limit function of the edge can limit the storage objects in the two side legs 11, and in conjunction with the leaning function of the back frame 29, the storage objects can be easily stacked together stably and neatly with automatic guidance. The front and rear ends of the side frames 14 and the opposite side frames 14 are provided with corresponding hollow front cross sleeve rods 23 and rear cross sleeve rods 24 opposite to each other. The inner side of the upper edge of the upper sleeve rod 18 and the upper sleeve rod 18 on the opposite side of the back frame 29 are also provided with corresponding hollow upper horizontal sleeve rods 21. Corresponding to the front telescopic rod 15, the rear telescopic rod 20, and the upper telescopic rod 22 are inserted in each hollow front cross rod 23, the rear cross rod 24, and the upper cross rod 21, which can be based on the width of the stand or bottom edge of the stored object Adjust and fix the position with the positioning bolt 26 corresponding to the screw hole 27 on each rod, so that it can accommodate objects of various widths, as shown in the fourth figure is a perspective view of the third figure of the present invention when it is pulled to both sides. In addition; the middle section of the backrest frame 29 is connected in series with the connecting rod 17 of the upper sleeve rod 18 and the lower sleeve rod 16, which are mainly temporarily separated during packaging and transportation to reduce the packaging volume and reduce the freight. The string is connected only when it is used, and it is worn with a pair of fixing screws. Pass the upper and lower rods and lock the backrest 25 to use use. At the bottom of the bipod 11, a wheel frame 12 is connected to a pulley 13 to facilitate movement, so that the rear-tilting storage vehicle of the present invention can be automatically arranged and stacked according to the storage sequence when a large number of storage objects of the same style are stored. As shown in Figure 5 to Figure 11.

The fifth figure is a perspective view of the rear-tilting folding table and chair storage cart 8H in the third diagram of the present invention, and the first A diagram is used when the first long folding table is used to store the cart up and down. Traditionally, when storing this long folding table 1A, the table top is turned upside down and the feet are placed on the bottom; then the tripod is bent and the table back is brought together, and then it is carried to the storage position by two people, which is time-consuming and laborious. When using the present invention; when the long folding table 1A is equipped with a rear-tilting folding table and chair storage cart 8H, as shown in the fifth figure, according to the order of steps 1~2~3~4, the state of step 1 (unfolded Time 1A), lift up one side to become the state of step 2, put the side of the 1A table on the rear-tilting folding table, chair storage cart 8H carrier board 10, then turn to the state of step 3, and then put 1A on the backrest Frame 29 or leaning against the previous long folding table 1A in sequence, and then retract the tripod and close the back of the table to become the state of step 4. On the contrary; when it is necessary to arrange the long folding table 1A stored on the rear-inclining folding table and chair storage cart 8H, push the rear-inclining folding table and chair storage cart 8H to the deployment position, and follow steps 4~3~ 2~1 sequence, first step 4 state (1A when standing), open the long folding table 1A bipod into step 3 state, and place the 1A table side against the rear-tilting folding table and chair storage cart 8H The object board 10 is then rotated into the step 2 state and the step 1 state, that is, the layout is completed. Moreover, the entire long folding table 1A has supporting points, and the transporter only needs a little effort and simple flipping action, and does not need to bear the full weight of the long folding table 1A, and it can be operated by a single person, saving time and effort.

Refer to Figure 6 for a perspective view of the implementation of the rear-tilting folding table and chair storage cart 8H in the third figure of the present invention, and the second long folding table 2B in the first and B-type storage carts. . The operation steps and methods are exactly the same as those in the fifth figure. The transporter only needs a little effort and simple flipping action, and does not need to bear the full weight of the long folding table 1A. It can save time and effort.

The seventh figure is a perspective view of the implementation of the third figure of the present invention when the first C figure is installed. Just put the legs of the folding table 3C together, put the two table legs 30 in the tripod 11 on the carrying board 10, and the table top is leaning against the back frame 29 or in front of the previous folding table 3C. When it is necessary to arrange the folding table 3C stored on the rear tilting folding table and chair storage cart 8H, push the rear tilting folding table and chair storage cart 8H to the deployment position, and pick up the folding table 3C one by one. Just set it up. The force direction of the arm is the same as the center of gravity of the folding table 3C. It does not need to be turned and no torque is generated. It can be operated by one person with one hand, saving time and effort. When it is necessary to arrange the folding table 3C stored on the rear tilting folding table and chair storage cart 8H, push the rear tilting folding table and chair storage cart 8H to the deployment position, and pick up the folding table 3C one by one. Just set it up.

The eighth figure is a perspective view of the implementation of the third figure of the present invention when the first D figure is installed. Just put the legs of the folding table 4D close together, place the two table legs 30 on the carrying board 10 and in the tripod 11, and the table top is leaning against the back frame 29 or in front of the previous folding table 4D. When it is necessary to arrange the folding table 4D stored on the rear tilting folding table and chair storage cart 8H, push the rear tilting folding table and chair storage cart 8H to the deployment position, and pick up the folding table 4D one by one. Just set it up. The force direction of the arm is consistent with the 4D center of gravity of the folding table throughout the entire process. There is no need to turn and no torque is generated. It can be operated by one person with one hand, saving time and effort.

The ninth figure is a perspective view of the third figure of the present invention when the first E figure is installed. Just put the legs of the folding chair 5E together, place the two table legs 30 on the carrying plate 10 and the tripod 11, and the chair surface is leaning against the back frame 29 or in front of the previous folding chair 5E. When it is necessary to arrange the folding chair 5E stored on the rear tilting folding table and chair storage cart 8H, push the rear tilting folding table and chair storage cart 8H to the deployment position, and pick up the folding chair 5E one by one. Just set it up. The force direction of the arm is the same as the center of gravity of the folding chair 5E. It does not need to be turned and no torque is generated. It can be operated by one person with one hand, saving time and effort.

The tenth figure is a perspective view of the implementation of the third figure of the present invention when the first F figure is installed. Just Put the legs of the folding chair 6 F together, place the two table legs 30 on the loading board 10 and in the tripod 11, with the chair surface leaning against the backrest frame 29 or in sequence in front of the previous folding chair 6 F. When it is necessary to arrange the folding chair 6 F stored on the rear tilting folding table and chair storage cart 8H, push the rear tilting folding table and chair storage cart 8H to the deployment position, and pick up the folding chair 6 F in sequence , Lay out one by one. The force direction of the arm is the same as the center of gravity of the folding chair 6 F, no turning and no torque are generated, and it can be operated by one person with one hand, saving time and effort.

Figure eleven is a perspective view of the implementation of the third figure of the present invention when the first G figure is installed. Just put the legs of the folding ladder 7G together, put the two ladder legs 32 on the load board 10, in the tripod 11, and the chair surface is leaning against the back frame 29 or the previous folding chair 6 F in sequence. . The force direction of the arm is consistent with the center of gravity of the folding ladder 7G, no turning and no torque are generated, and it can be operated by a single person with one hand, saving time and effort. It is suitable for transportation, exhibition and sales of folding ladder 7G manufacturing plants and hypermarkets.

To sum up the structure described above, the present invention uses a specially designed rear-tilt adjustable width side frame loading platform and backrest frame and connects the bipod frame, uses a slight tilt to change the center of gravity of the storage object, and provides the bottom of the storage object. , Backrest, and bipod; a total of four limit or support surfaces, can easily accommodate a large number of storage objects of the same style, with the legs and pulleys on both sides to form a folding table, chair, ladder general storage cart, can The folding tables, chairs, and ladders are directly retracted and stacked directly on the storage cart, and can be moved to the place where they need to be used at any time. Therefore, the present invention is the easiest to understand and implement, so it can provide good usability and convenience, which is a complete and comprehensive Know different institutions.

The above are detailed descriptions and drawings of the preferred embodiments of the present invention, and are not intended to limit the present invention. All the scope of the present invention should be subject to the following patent scope, and the spirit of the patent scope and similarly modified embodiments Both and similar structures should be included in the present invention.

11: tripod

12: Wheel frame

13: pulley

14: side frame

15: Front telescopic rod

10: loading board

16: bottom bar

17: lower rod

18: upper sleeve

19: Promotion Department

20: Rear telescopic rod

21: Upper cross bar

22: Upper telescopic pole

23: Front cross bar

24: Rear cross bar

25: backrest

26: fixing screw

27: Screw hole

28: loading frame

29: backrest frame

31: Tripod limit rod

8H: Rear-tilting folding table and chair storage cart

Claims (1)

A rear-tilting folding table and chair storage cart, comprising: a pair of legs, each of the legs is like a frame, arranged vertically, the bottom of each leg is connected to a pulley by a wheel frame at the front and rear; Position rod; a loading frame, which is positioned between the bipods at a high and low angle in the front. The loading frame has two side frames. The front and rear ends of the side frames face each other with a front cross rod and a rear cross rod, in front of two A hollow front telescopic rod and a rear telescopic rod are inserted between the transverse sleeve rod and the rear transverse sleeve rod; the width of the load frame can be adjusted horizontally, relative to the front transverse sleeve rod and the rear transverse sleeve rod, the front telescopic rod and the rear The telescopic rod is provided with several screw holes for matching and positioning with a fixed screw; on both sides of the frame there is a load board of non-rigid material; a back frame, which is connected to the two sides of the rear end of the load frame, The lower sleeve rod is connected to the rear end of the side frame corresponding to the lower sleeve rod. There is an upper sleeve rod relative to each lower sleeve rod. The upper end of the upper sleeve rod forms a hook-like holding part behind. Each upper sleeve rod is connected with a parallel rear cross near the top end. One of the sleeve rods is an upper horizontal sleeve rod. A hollow telescopic rod and an upper telescopic rod are inserted between the two upper and lower sleeve rods and the upper transverse sleeve rod, so that the back frame can be connected up and down and the width can be adjusted horizontally. , Relative to the upper horizontal sleeve rod and the upper telescopic rod, a number of screw holes are provided to match and locate a fixed screw respectively; a pair of fixed screws are connected in front of the two upper and lower sleeve rods with a backrest plate of non-rigid material; Among them, the loading frame is slightly inclined -10~20 degrees and fixed in the bipod. The front is high and the back is low. By tilting to store folding tables, chairs and other objects, the position of the center of gravity is changed. , The carrying board bears most of the vertical weight; the back frame and the back board bear a small part of the horizontal force, so that the storage objects are in a stable and vertical leaning state; wherein the pair of tripods are frame-shaped The vertical frame, in addition to providing a slightly inclined object frame to fix and strengthen; the tripod is equipped with a tripod limit rod, which constitutes a tripod for storage of objects or a limit device for the bottom edge, which can limit storage on both sides of the tripod Inside, with the leaning of the backrest frame, the items to be stored can be easily and automatically guided stably and neatly stacked together.

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