TWI831714B - Harvesting cart - Google Patents

Abstract

The present invention relates to a harvesting cart, including: a cart frame, the bottom of which is provided with an omni wheel and two general wheels, wherein a bottom board is fixed to the cart frame; a seat unit, pivotally connected to the cart frame and including a seat cushion and a leaning cushion, wherein the seat cushion is pivoted by a first degree with respect to the bottom board, and the leaning cushion is pivoted by a second degree with respect to the bottom board; a support unit, pivotally connected to the seat unit and including a sleeve, a support rod, and a support base, wherein the sleeve is pivotally connected to the leaning cushion and is coupled to the support rod so that the support rod is elastically extendable and retractable with respect to the sleeve, and the support base is pivotally connected to the support rod. According to the present invention, a user’s spinal load can be reduced and therefor can avoid injuries.

Description

Picking cart

The invention relates to a picking tool cart structure that can share the force of the lumbar vertebrae to avoid injuries and improve work efficiency.

At present, agriculture has always been the foundation of society. Only by treating farmers well can we maintain the energy of agriculture. Through observing the process of farmers' cultivation, management and harvesting of crops, whether they adopt outdoor open cultivation or greenhouse cultivation operations, the use of Those who use it will use a seat to sit on it, which is convenient for manual picking operations. The disadvantage is that it cannot be moved arbitrarily.

Therefore, there is a new patent case No. M371407 "Multifunctional Agricultural Vehicle" announced on January 1, 1999 in the Republic of China. It is disclosed that it includes a long rod-shaped main shaft, and is slidably provided with a seat on one end of the main shaft, and is slidably provided with a seat on the other end, wherein the seat is provided on both sides. There is a pair of rotatable riding wheel bodies, and a seat assembly is provided on the upper part to provide users with riding functions. The seat part is provided with a pair of rotatable riding wheel bodies on both sides to match the riding wheels. The body allows the vehicle body to move forward and backward, and also provides space for setting up racks and placing crops, which can effectively assist users in cultivating, managing and harvesting crops.

According to the previous patent, the seat can slide relative to the main axis, so that when the user sits on the seat, the front and rear positions can be fine-tuned, and the user can move forward and backward without standing up. However, with such a structure, when the user leans forward to perform picking operations, it is easy for the body to not receive any support, causing the buttocks to leave the seat and the lumbar spine to hang in the air. Therefore, the back posture may be incorrect, resulting in lumbar spine injury.

There is also a new patent case No. M492044 "Agricultural Vehicle with Adjustable Seat Height" announced on December 21, 2013. It is disclosed: including a frame, a seat and four running wheels; The seat is fixed to the frame in a height-changeable manner, and the running wheels are paired in pairs and rotatably fixed to both sides of the frame. The seat is equipped with a sleeve, and the height can be adjusted by sliding the sleeve on the guide rod provided on the frame. In addition, the fixed piece is inserted into the adjustment hole provided on the guide rod to fix the adjusted height of the seat. To solve the problem that existing agricultural vehicles cannot adjust the seat height according to the user's body shape and the height of the harvested crops, an agricultural vehicle with an adjustable seat height that allows the user to perform harvesting work in a suitable posture is proposed.

Although the height of the previous patent can be adjusted relative to the frame through the seat, it can be adapted to users of different heights. However, when the user leans forward to perform picking operations, it is also easy for the body to not receive any support, causing the buttocks to leave the seat and the lumbar spine to hang in the air. Therefore, the back posture is incorrect, resulting in lumbar spine injury.

Therefore, in view of the above-mentioned shortcomings of current agricultural picking vehicles. Therefore, the present invention provides a picking vehicle, which includes: a vehicle frame, with a universal wheel and two wheels provided at the bottom, and the vehicle frame is fixed with a bottom plate; a seat unit is pivotally connected to the vehicle frame, and the seat unit It includes a seat cushion and a back cushion, the seat cushion pivots at a first angle relative to the bottom plate, and the back cushion pivots at a second angle relative to the bottom plate; a support unit is pivotally connected to the seat unit, and the support unit includes a A sleeve, a rod and a support seat. The sleeve is pivotally connected to the cushion. The sleeve is combined with the support rod so that the support rod can elastically expand and contract relative to the sleeve. The support seat is pivotally connected to the support. Rod.

The above-mentioned first angle is less than 30 degrees, and the second angle is between 95 degrees and 115 degrees.

The front edge of the above-mentioned bottom plate is provided with a pivot portion, and a pivot element is provided in the pivot portion. A first axis portion of the seat cushion is relatively pivoted to the pivot portion through the pivot element. The second shaft part is relatively pivotally connected to the pivot part through the pivot element.

A first limiting block with a quarter of the circumference is provided on the periphery of the first shaft part, and a second limiting block with a quarter of the circumference is provided on the periphery of the second shaft part. The first limiting block is The position block and the second limiting block will engage with each other when pivoting.

Through the limiting effect of the first limiting block and the second limiting block, the back cushion and the seat cushion are driven to a 95-degree interlocking state.

The maximum pivot angle that can be relatively expanded between the above-mentioned seat cushion and the back cushion is 95 degrees.

The front edge surface of the above-mentioned cushion is provided with a joint portion. The joint portion is provided with an adjacent first positioning hole and a second positioning hole. The two ends of the sleeve are respectively provided with a first end and a second end. , the first end is pivotally connected to the coupling part through a pin, the first end is provided with a pin hole, and a first latch is provided in the pin hole, and the first latch is selectively inserted into the third positioning in a positioning hole or the second positioning hole.

The two ends of the above-mentioned support rod are respectively provided with a third end and a fourth end. The second end is provided with a groove, and two protruding columns are provided in the groove. A spring is respectively set on the two protruding columns. The third end is provided with two concave holes corresponding to the two protruding columns. The two concave holes are for the two protruding columns to be correspondingly set therein. The third end can compress the two springs to produce a buffering effect. The support base is a pivot Connect to the fourth terminal.

The outer edge of the above-mentioned casing is provided with at least one through hole that penetrates into the groove. A second latch is provided in the through hole. The outer edge of the support rod is provided with a long groove. The second latch is inserted into the long groove. In the groove, a limiting effect is produced when the strut elastically expands and contracts relative to the casing.

The above-mentioned seat cushion is provided with blade-shaped heat dissipation holes, and the bottom of the support base is provided with a triangular anti-sliding block.

According to the above technical characteristics, it has the following advantages:

1. During the picking process, the user's abdomen can press against the cushion, and part of the user's center of gravity falls on the cushion. At this time, the second angle between the cushion and the bottom plate is between 105 degrees and 115 degrees. between degrees, so that its limbs will bend forward, and at the same time it is ergonomically designed to meet the When the human body leans forward for picking, the third end of the support pole is used to compress the spring to create a buffering effect. The support seat can be propped against the ground of the farmland to share the force of the lumbar spine. After picking, the center of gravity of the hips moves backward. to the seat cushion, the support base can be lifted off the ground.

2. The support unit allows the user to relieve injuries to the lumbar spine during the picking process to avoid occupational injuries. The back cushion can be linked to the seat cushion at 95 degrees to facilitate the user to quickly change the center of gravity. Improve the user's working conditions, make the work easier, and improve the work efficiency during picking.

3. Add a universal wheel mechanism to facilitate users to turn and move in various directions in the farmland.

1: Frame

11: Universal wheel

12:wheels

13: Bottom plate

14: Pivot joint

15: Pivot components

2:Seating unit

21:Cushion

211:First axis department

212: First limit block

213:Heat dissipation hole

22:cushion

221:Second axis part

222: Second limit block

23:joint part

231: First positioning hole

232: Second positioning hole

233:First pivot hole

3:Support unit

31: Casing

311:Through hole

312:Second pin

32:Strut

321:Long slot

33: Support base

331: Anti-sliding block

34:First end

341: Second pivot hole

342:Pin

343: Pin hole

344:First latch

35:Second end

351: Groove

352:Protruding pillar

353:Spring

36:Third end

361: concave hole

37: Fourth end

A:First angle

B:Second angle

C: Maximum pivot angle

D:User

[The first figure] is an exploded perspective view of an embodiment of the present invention.

[The second figure] is a partially exploded three-dimensional view of the frame and seat unit according to the embodiment of the present invention.

[The third figure] is a three-dimensional assembled view of an embodiment of the present invention.

[The fourth figure] is a side view of the picking vehicle according to the embodiment of the present invention.

[The fifth figure] is a partially assembled three-dimensional view of the frame and seat unit according to the embodiment of the present invention.

[Figure 6] is a schematic diagram of the elastic expansion and contraction of the strut relative to the casing according to the embodiment of the present invention.

[Figure 7] is a schematic diagram of the second latch inserted into the elongated slot according to the embodiment of the present invention.

[Figure 8] is a schematic diagram of a user sitting on a seat cushion according to an embodiment of the present invention.

[Figure 9] is a schematic diagram showing that the second angle between the cushion and the bottom plate is 105 degrees according to the embodiment of the present invention.

[Figure 10] is a schematic diagram showing that the second angle between the cushion and the bottom plate is 115 degrees according to the embodiment of the present invention.

[Figure 11] is a schematic diagram showing that the user's abdomen is pressed against the cushion according to the embodiment of the present invention.

[Figure 12] is a schematic diagram of the sleeve and the support rod being bent relative to the cushion according to the embodiment of the present invention.

[Figure 13] is a schematic diagram of the closing of the picking vehicle according to the embodiment of the present invention.

In the following embodiments of the present invention, if there are terms such as left, right, front, back, up, and down, the directions in which the picking vehicle (shown in the third figure) itself faces are used as the reference. The terms are used only to facilitate the description of the embodiments of the present invention and do not limit the spatial form of the present invention.

Please refer to the first, second and third figures. The embodiment of the present invention includes: a vehicle frame 1, a seat unit 2 and a support unit 3. Among them: the vehicle frame 1 has an adjustable There is a universal wheel 11 that rotates 360 degrees, and two wheels 12 are provided oppositely at the rear of the bottom. The vehicle frame 1 is fixed with a bottom plate 13. The front edge of the bottom plate 13 is provided with a pivot portion 14, and a pivot element 15 is provided in the pivot portion 14.

The seat unit 2 is pivotally connected to the vehicle frame 1. The seat unit 2 includes a seat cushion 21 and a back cushion 22 . The first shaft portion 211 of the seat cushion 21 is provided with a first limiting block 212 with a quarter of its circumference on its periphery, and the second shaft portion 221 of the back cushion 22 is provided with a first limiting block 212 with a quarter of its circumference on its periphery. Two limiting blocks 222, the first shaft portion 211 of the seat cushion 21 is relatively pivotally connected to the pivot portion 14 of the bottom plate 13 through the pivot element 15, so that the seat cushion 21 can pivot relative to the bottom plate 13. The first angle A (as shown in the fourth figure) is less than 30 degrees, and the best first angle A in the embodiment of the present invention is 20 degrees. The second shaft portion 221 of the back cushion 22 is relatively pivoted to the pivot portion 14 of the bottom plate 13 through the pivot element 15, so that the back cushion 22 can pivot at a second angle B relative to the bottom plate 13. The second angle B is between 95 degrees and 115 degrees (as shown in the fourth figure). In addition, the first limiting block 212 of the first shaft part 211 and the second limiting block 222 of the second shaft part 221 will block each other when pivoting (as shown in the fifth figure). Therefore, the maximum pivot angle C that can be relatively expanded between the seat cushion 21 and the back cushion 22 is 95 degrees. And the back cushion 22 can be brought into position by the first limiting block 212 and the second limiting block 222 engaging and limiting. The seat cushion 21 is moved to present a 95-degree linkage state. In addition, the front edge surface of the cushion 22 is provided with a joint portion 23. The joint portion 23 is provided with adjacent first positioning holes 231 and second positioning holes 232. The joint portion 23 is also provided with a first pivot joint. Hole 233. The seat cushion 21 is provided with blade-shaped heat dissipation holes 213 for generating heat dissipation when riding.

The support unit 3 is pivotally connected to the seat unit 2. The support unit 3 includes a sleeve 31 , a rod 32 and a support base 33 . The sleeve 31 is provided with a first end 34 and a second end 35 at both ends, and the support rod 32 is provided with a third end 36 and a fourth end 37 at both ends. The first end 34 of the sleeve 31 is provided with a second pivot hole 341 opposite to it. The second pivot hole 341 is connected to the first pivot hole 233 of the coupling part 23 through a pin 342 . Pivot connection. The first end 34 is oppositely provided with a pin hole 343, and a first latch 344 is disposed in the pin hole 343. The first latch 344 can be selectively inserted into the first positioning hole 231 of the coupling part 23 or The second positioning hole 232 is positioned inside. When the support unit 3 needs to be unfolded for use, the first latch 344 is movably inserted into the corresponding pin hole 343 and the first positioning hole 231 for positioning. A latch 344 is movably inserted into the corresponding pin hole 343 and the second positioning hole 232 for positioning. The second end 35 of the sleeve 31 is provided with a groove 351 (as shown in the sixth figure). The groove 351 is provided with two protruding posts 352, and a spring 353 is respectively set on the two protruding posts 352. In addition, the outer edge of the sleeve 31 is provided with at least one through hole 311 penetrating to the groove 351, and a second latch 312 is provided in the through hole 311. The third end 36 of the support rod 32 is provided with two concave holes 361 corresponding to the two protruding columns 352. The two concave holes 361 are for the two protruding columns 352 to be correspondingly set therein. The third end 36 of the support rod 32 The two springs 353 can be compressed to produce a buffering effect, so that the support rod 32 can elastically expand and contract relative to the sleeve 31 . In addition, the outer edge of the support rod 32 is provided with a long slot 321, and the long slot 321 can be inserted into the second latch 312 (as shown in the seventh figure), so that the support rod 32 can be positioned relative to the sleeve 31. Elastic expansion and contraction can produce a limiting effect. The support seat 33 is pivotally connected to the fourth end 37 of the support rod 32. The bottom of the support seat 33 is provided with a triangular anti-slip block 331, which can provide anti-slip effect when used as a support.

When in use, as shown in the first, third and eighth figures, a user D can sit on the seat cushion 21 of the seat unit 2, and the user D's center of gravity naturally falls on the seat cushion 21. At this time, the first angle A between the seat cushion 21 and the bottom plate 13 is 0 degrees, and the second angle B between the back cushion 22 and the bottom plate 13 is 95 degrees, and the support base 33 is lifted Off the ground of farmland. The user D can control the vehicle frame 1 to steer using the universal wheels 11 and to rotate and move using the two wheels 12 . When the vehicle frame 1 is moved to a position ready to start picking crops, the second pin 312 can be inserted into any appropriate through hole 311 on the outer edge of the sleeve 31, thereby adjusting the bottom of the support base 33. The distance between the anti-sliding block 331 and the ground of the farmland. When user D starts picking crops, the abdomen of his body will press against the cushion 22 (as shown in Figure 11), and part of the center of gravity of user D falls on the cushion 22. At this time, the cushion The second angle B between 22 and the bottom plate 13 is between 105 degrees (as shown in the ninth figure) and 115 degrees (as shown in the tenth figure). And the first angle A between the seat cushion 21 and the bottom plate 13 is between 15 degrees and 25 degrees. Since part of the center of gravity of the user D will be transferred to the support unit 3 through the seat cushion 21 for sharing, the third end 36 of the support rod 32 can compress the two springs 353 to produce a buffering effect, so that the support rod 32 is relatively The sleeve 31 elastically expands and contracts to offset part of the center of gravity of the user D, and the support base 33 of the support unit 3 can be supported on the ground of the farmland. In this way, the second angle B can be changed with the backrest 22 relative to the bottom plate 13, and the backrest 22 can be used to share the pressure on the lumbar spine of the user D, thereby improving the working condition of the user D and reducing the risk of picking crops. It also reduces the damage caused to the lumbar spine and makes the work easier to improve the work efficiency during picking.

As shown in the first figure, the twelfth figure and the thirteenth figure, when it is not needed and is ready to be folded, the first latch 344 can be pulled out correspondingly from the pin hole 343 and the first positioning hole 231. , and then pivot and bend the back cushion 22 relative to the seat cushion 21 so that the back cushion 22 lies flat on the seat cushion 21. At the same time, the sleeve 31 links the support rod 32 to jointly bend in parallel and abut against the back cushion 22. Then, the first latch 344 is movably inserted into the corresponding pin hole 343 and the second positioning hole 232 for positioning, so that the sleeve 31 is flat. The sleeve 31 is fixed to the back cushion 22 and cannot be bent or unfolded relative to the back cushion 22. In this way, the seat unit 2 and the support unit 3 can be quickly folded, thereby reducing the overall volume for convenience. Carry or collect.

Based on the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above embodiments are only preferred embodiments of the present invention and should not be used to limit the implementation of the present invention. The scope, that is, simple equivalent changes and modifications based on the patent scope of the present invention and the description of the invention, are all within the scope of the present invention.

1: Frame

11: Universal wheel

12:wheels

13: Bottom plate

14: Pivot joint

15: Pivot components

2:Seating unit

21:Cushion

211:First axis department

212: First limit block

213:Heat dissipation hole

22:cushion

221:Second axis part

222: Second limit block

23:joint part

231: First positioning hole

232: Second positioning hole

233:First pivot hole

3:Support unit

31: Casing

311:Through hole

312:Second pin

32:Strut

321:Long slot

33: Support base

331: Anti-sliding block

34:First end

341: Second pivot hole

342:Pin

343: Pin hole

344:First latch

35:Second end

352:Protruding pillar

353:Spring

36:Third end

361: concave hole

37: Fourth end

Claims (10)

A picking vehicle includes: a frame with a universal wheel and two wheels at the bottom; the frame is fixed with a bottom plate; a seat unit is pivotally connected to the frame; the seat unit includes a seat cushion and A back cushion, the seat cushion pivots at a first angle relative to the bottom plate, the back cushion pivots at a second angle relative to the bottom plate; a support unit, pivotally connected to the seat unit, the support unit includes a sleeve, a The support rod and a support base, the sleeve is pivotally connected to the cushion, the sleeve is combined with the support rod so that the support rod can elastically expand and contract relative to the sleeve, and the support base is pivotally connected to the support rod. For example, the picking vehicle of claim 1, wherein the first angle is less than 30 degrees, and the second angle is between 95 degrees and 115 degrees. The picking vehicle of claim 1, wherein the front edge of the bottom plate is provided with a pivot portion, a pivot element is provided in the pivot portion, and a first axis portion of the seat cushion is relatively pivoted through the pivot element. At the pivot portion, a second shaft portion of the cushion is relatively pivoted to the pivot portion through the pivot element. The picking vehicle of claim 3, wherein a first limiting block with a quarter of the circumference is provided on the periphery of the first shaft part, and a first limiting block with a quarter of the circumference is provided on the periphery of the second shaft part. The second limiting block, the first limiting block and the second limiting block will engage each other to limit the position when pivoting. Such as the picking vehicle of claim 4, wherein the limiting effect of the first limiting block and the second limiting block is used to drive the back cushion and the seat cushion into a 95-degree interlocking state. Such as the picking vehicle of claim 1, wherein the maximum pivot angle that can be relatively expanded between the seat cushion and the back cushion is 95 degrees. The picking vehicle of claim 1, wherein the front edge surface of the cushion is provided with a joint portion, and the joint portion is provided with an adjacent first positioning hole and a second positioning hole, and the two ends of the sleeve are respectively A first end and a second end are provided. The first end is pivotally connected to the coupling part through a pin. The first end A pin hole is provided, and a first latch is disposed in the pin hole. The first latch is selectively inserted into the first positioning hole or the second positioning hole for positioning. For example, the picking vehicle of claim 7, wherein the two ends of the support pole are respectively provided with a third end and a fourth end, the second end is provided with a groove, and the groove is provided with two protruding posts. A spring is respectively set on the two protruding columns. The third end is provided with two concave holes corresponding to the two protruding columns. The two concave holes are for the two protruding columns to be correspondingly set therein. The third end can compress the two springs. Producing a buffering effect, the support base is pivotally connected to the fourth end. Such as the picking vehicle of claim 8, wherein the outer edge of the casing is provided with at least one through hole penetrating into the groove, a second latch is provided in the through hole, and the outer edge of the support rod is provided with a long groove , the second latch is inserted into the elongated slot, thereby producing a limiting effect when the strut elastically expands and contracts relative to the casing. The picking vehicle of claim 1, wherein the seat cushion is provided with blade-shaped heat dissipation holes, and the bottom of the support seat is provided with a triangular anti-slip block.

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