TWI761290B - work chair - Google Patents

Abstract

A work chair is suitable for a user, and includes a seat plate, a fixing belt unit connected to the seat plate, and a foot bar unit. The seat plate has a first side surface and a second side surface opposite to each other, and a plurality of fixing holes recessed in the second side surface. The foot lever unit includes two foot lever sets pivotally connected to the second side surface and including foot levers, each foot lever has a hollow lever member pivotably connected to the seat plate, and a movably through The supporting rod of the hollow rod. The work chair can be changed between a folded state and an unfolded state. In the folded state, the seat plate can be in an upright shape and each leg bar hangs down. In the unfolded state, the seat plate is in a horizontal shape. In addition, each supporting rod can penetrate into its respective fixing hole, so that the foot rod cannot rotate relative to the seat plate, but can be automatically locked, thereby improving the riding safety.

Description

work chair

The present invention relates to a chair, in particular to a work chair.

Generally speaking, the reasons for joint degeneration include: joint fracture or surgery, overweight, unbalanced nutrition, and overuse and wear of the joint...etc.

Among them, for workers who need to squat for a long time in response to work requirements (for example, agricultural workers), in order to avoid excessive wear and tear of their knee joints in a low squatting posture for a long time, a device that helps reduce the stress on the knee joint has been developed. Product is one of the goals of research and development in this technical field.

Therefore, the object of the present invention is to provide a work chair that overcomes at least the disadvantages of the prior art.

Therefore, the work chair of the present invention is suitable for a user, and includes a base plate, a fixing belt unit, and a foot bar unit.

The seat plate has a first side surface suitable for facing the user's buttocks, A second side surface opposite to the first side surface, and a plurality of fixing holes respectively recessed in the second side surface.

The fixing belt unit includes a first fixing belt set suitable for being detachably looped around the waist of the user and connected to the seat plate.

The foot bar unit includes two foot bar sets pivotally connected to the second side surface of the seat plate and spaced apart from left and right, and including at least one foot bar, each foot bar has a hollow that can be pivotally connected to the seat plate A rod, and a supporting rod which can be moved through the hollow rod for the hollow rod.

Wherein, the working chair can be changed between a folded state and an unfolded state. In the folded state, the seat plate can be upright, and the at least one leg of each leg set swings downward. In the unfolded state, the seat plate is horizontal, the at least one foot bar of each foot bar group is pivoted by gravity to be perpendicular to the seat plate, and the abutting member of each foot bar can penetrate into the respective the fixing hole, so that the foot rod cannot rotate relative to the seat plate.

The effect of the present invention lies in: using the design of the leg rods pivoting to the seat plate and the design of the support rods of the leg rods being able to penetrate the fixing holes, so that the work chair can be pushed down by the user. When squatting and sitting on the seat plate, the work chair is not automatically converted into a chair, and the seat plate will not be rotated relative to the leg bars and automatically locked, which is quite convenient and safe.

1: seat plate

11: The first side

12: Second side

13: Fixing hole

2: Fixed belt unit

21: The first fixing belt group

211: The first fixing belt

212: The first connector

213: storage bag

22: The second fixing belt group

221: Second strap

222: Second connector

3: Foot rod unit

31: Foot bar set

311: Pivot part

312: Limiting part

314: connecting rod

4: Foot bar

41: Hollow rod

411: Surrounding the Wall

414: Pass through the channel

412: Bottom Wall

413: Eccentric opening

42: Support rod

421: Piercing the rod

422: Support block

423: Card block

43: Protective case

9: User

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: Figure 1 is a perspective view illustrating an embodiment of the work chair of the present invention; Figure 2 is an incomplete partial cross-sectional view, Illustrating this embodiment; FIG. 3 is an incomplete partial cross-sectional view illustrating the embodiment in an expanded state; and FIG. 4 is an incomplete partial cross-sectional view at another angle illustrating the embodiment in the expanded state.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated by the same reference numerals.

Referring to FIGS. 1 to 3 , an embodiment of the work chair of the present invention is suitable for wrapping around the torso of a user 9 , and includes a seat plate 1 , a fixing belt unit 2 connected to the seat plate 1 , and a foot bar unit 3.

The seat plate 1 is in the shape of a square thick plate, and has a first side surface 11 suitable for facing the buttocks of the user 9 , a second side surface 12 opposite to the first side surface 11 , and a plurality of The two side surfaces 12 are recessed and spaced apart from the fixing holes 13 toward the first side surface 11 .

The fixing belt unit 2 includes a first fixing belt set 21 suitable for being detachably attached to the waist of the user 9 and connected to the left and right sides of the seat plate 1 , and a first fixing belt set 21 suitable for detaching the belt The second fixing belt set 22 is located on the lower edge of the user's 9 buttocks and connected to the left and right sides of the seat plate 1 .

The first fixing belt set 21 has two first fixing belts 211 , which are suitable for jointly wrapping around the waist of the user 9 and are respectively connected to the left and right sides of the seat plate 1 . Two first fixing belts 211 are respectively disposed between the first fixing belts 211 The first connecting pieces 212 opposite to the two ends of the base plate 1 and two storage pockets 213 suitable for accommodating water glasses or small sundries. The first connecting members 212 are detachably connected to each other, such as but not limited to two fasteners, or a hook and a buckle. The storage pockets 213 are respectively disposed on the outer side of the first fixing belt 211 opposite to the use watch.

The second fixing belt set 22 has two second fixing belts 221 which are suitable for jointly encircling the lower edge of the user's buttocks 9 and are respectively connected to the left and right sides of the seat plate 1 , and two second fixing belts 221 respectively disposed on the second fixing belts The second connecting piece 222 of the belt 221 is opposite to the two ends of the base plate 1 and is detachably connected to each other. The second connecting members 222 are detachably connected to each other, such as but not limited to two fasteners, or a hook and a buckle.

The foot rod unit 3 includes two foot rod groups 31 which are respectively pivoted to the second side surface 12 of the seat plate 1 and are spaced apart from each other. Each leg set 31 includes two pivot portions 311 disposed on the second side surface 12 of the seat plate 1 , and the two are respectively connected to the pivot portion in the same body. The limiting portion 312 on the top side of the 311 , two leg rods 4 pivotally connected to the respective pivot portions 311 , and a connecting rod 314 pivotally connected between the leg rods 4 .

In each foot rod set 31 , each foot rod 4 has a hollow rod member 41 pivotally connected to the corresponding pivot portion 311 , and a hollow rod member 41 pierced through the hollow rod member 41 for relative movement of the hollow rod member 41 . The supporting rod 42 , and a protective cover 43 covering the outer peripheral surface of the bottom side of the hollow rod 41 and the bottom side of the supporting rod 42 . The hollow rod 41 of each leg rod 4 is in the shape of a long column, and has a surrounding wall 411 extending along its length direction and defining a passage 414, and a bottom side connected to the surrounding wall 411 and defining a surrounding wall 411. A bottom wall 412 of the eccentric opening 413 communicated with the surrounding wall 411 . The supporting rod 42 of each foot rod 4 includes a penetrating rod body that can move up and down and is located in the passing channel 414 and penetrates downward from the eccentric opening 413 and can be exposed to the bottom wall 412 of the hollow rod 41 . 421, a supporting block 422 connected to the bottom side of the through rod body 421 and exposed on the bottom side of the hollow rod member 41 and used for the bottom wall 412 of the hollow rod member 41 to be pressed against, and a support block 422 located in the perforation channel 414 and radially protruding from the through rod 421 and used to abut against the blocking block 423 of the inner side of the bottom wall 412, so that the supporting rod 42 will not pass through the eccentric opening 413 of the hollow rod 41 slip out. The cross section of the abutting block 422 is larger than the eccentric opening 413 , so that the hollow rod 41 can support the bottom wall 412 of the hollow rod 41 when the hollow rod 41 moves downward relative to the supporting rod 42 . The limiting portions 312 can limit the rotation angle of the corresponding leg bar 4 . The protective cover 43 of each foot rod 4 is a soft film that can be deformed by force, such as but not limited to a silicon film. Every A protective sleeve 43 can be telescopically covered along the length direction of the foot rod 4 between the outer peripheral surface of the bottom side of the hollow rod 41 and the outer peripheral surface of the bottom side of the supporting block 422 .

The working chair can be changed between a folded state and an unfolded state. In the folded state, the seat plate 1 can be upright, and the at least one leg bar 4 of each leg bar group 31 hangs downward. In the unfolded state, the seat panel 1 is horizontal, and the at least one leg bar 4 of each leg bar group 31 is pivoted by gravity to be perpendicular to the seat panel 1 .

When in use, the user 9 is in a standing position first, and the fixing belt unit 2 of the work chair is looped around the waist and buttocks of the user 9 , so that the seat plate 1 is upright. At this time, the work chair is in the folded state. During the process of the user 9 changing from the standing position to the squatting position or the sitting position, since the user 9's buttocks will be substantially parallel to the ground first, the seat plate 1 fitted to the user's 9 buttocks is converted into a horizontal shape. At this time, the leg bars 4 of the leg bar sets 31 are still swayed downward by gravity, so that the leg bars 4 are pivoted to a vertical shape relative to the seat plate 1 by gravity, and are perpendicular to the seat plate 1 .

Referring to FIG. 3 and FIG. 4 , when the work chair is in the unfolded state and the user 9 continues to squat, the abutting rods 42 of the foot bars 4 first contact the ground, and then the foot bars The hollow rod 41 of 4 moves down relative to the supporting rods 42 , and the seat plate 1 moves down together until the top side of each supporting rod 42 penetrates into the respective fixing holes 13 . At this time, through the design that the supporting rods 42 can respectively penetrate the fixing holes 13 , the foot rod unit 3 can no longer rotate relative to the seat plate 1 . Therefore, the work chair can be used by the user 9 who originally needs to be in a squatting position to sit comfortably on the seat plate 1 On the other hand, the knee joint of the user 9 will be severely worn out due to the long-term squatting position. On the other hand, in the unfolded state, the design of the limiting portions 312 can also be used, so that the foot rods 4 will not pivot backward before passing through the fixing holes 13 (see FIG. 3 for example). , is to prevent the foot rods 4 from turning clockwise after being perpendicular to the seat plate 1). In addition, the design of the protective sleeves 43 can prevent the sediment from the ground from covering the top side of the piercing rod body 421 and the supporting block 422 , thereby preventing the sediment from entering and accumulating along with the piercing rod body 421 The passage 414 of the hollow rod 41 affects the smoothness of the action of the foot rod 4 .

It should be noted that the number of the foot rod 4 , the pivot portion 311 and the limiting portion 312 of each foot rod set 31 can also be one, and the connecting rod 314 is omitted, as long as the foot rod sets 31 can be balanced Just stick to the ground.

In addition, the storage pockets 213 can be used for the user 9 to place personal items such as water cups, keys or change, without the need to carry a water bottle or carry a storage bag, which effectively simplifies the storage that the user 9 needs to carry on his body during work. bag.

It should be noted that the storage pockets 213 can also be arranged on the same first fixing belt 211 , and the storage pockets 213 can be made of elastic material. The number of the storage pockets 213 can also be one, three, etc., depending on the actual demand.

To sum up, the work chair of the present invention utilizes the design of the leg units 3 pivotally connected to the seat plate 1, so that the work chair can be changed between the folded state and the unfolded state under the action of gravity, effectively Increase the ease of use of the work chair. Furthermore, Using the design that the supporting rods 42 of the leg rods 4 can respectively penetrate into the fixing holes 13 of the seat plate 1 , the work chair in the unfolded state can be seated when the user 9 sits on the seat plate 1 . The board 1 can be automatically locked without being rotated relative to the foot rods 4 automatically, so as to improve the safety of riding, so the object of the present invention can be achieved.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

1: seat plate

11: The first side

12: Second side

13: Fixing hole

2: Fixed belt unit

21: The first fixing belt group

211: The first fixing belt

212: The first connector

213: storage bag

22: The second fixing belt group

221: Second strap

222: Second connector

3: Foot rod unit

31: Foot bar set

311: Pivot part

312: Limiting part

314: connecting rod

4: Foot bar

41: Hollow rod

42: Support rod

421: Piercing the rod

422: Support block

423: Card block

43: Protective case

Claims (8)

A task chair, suitable for a user, comprising: a base plate, which has a first side surface suitable for facing the user's buttocks, a second side surface opposite to the first side surface, and a plurality of fixing holes respectively recessed in the second side surface; a fixing belt unit, comprising a first fixing belt set suitable for being detachably looped around the waist of the user and connected to the seat plate; and A foot lever unit, comprising two foot lever groups pivotally connected to the second side surface of the seat plate and spaced apart from left and right and including at least one foot lever, each foot lever having a pivotally connected to the seat plate the hollow rod, and a supporting rod that can be moved through the hollow rod for the hollow rod, Wherein, the work chair can be changed between a folded state and an unfolded state. In the folded state, the seat plate can be in an upright shape, and the at least one leg bar of each leg bar group hangs down. In the state, the seat plate is horizontal, the at least one foot rod of each foot rod group is pivoted by gravity to be perpendicular to the seat plate, and the supporting rod of each foot rod can penetrate into the respective fixing hole , so that the foot rod cannot rotate relative to the seat plate. The work chair according to claim 1, wherein each leg bar set has two said leg bars spaced apart, and each leg bar set further has a connecting bar pivotally connected between said leg bars. The work chair according to claim 2, wherein the hollow rod member of each leg rod has a surrounding wall extending along its own length direction and defining a passing channel, and a bottom side connected to the surrounding wall and defining a surrounding wall. A bottom wall of an eccentric opening communicated with the surrounding wall, the supporting rod includes a penetrating rod body that can move up and down in the penetrating channel and penetrates out of the hollow rod from the eccentric opening, and a rod connected to the hollow rod. The bottom side of the piercing rod is exposed to the hollow rod and is used for supporting against the hollow rod; Abutting block against the inner side of the bottom wall. The work chair of claim 3, wherein each leg bar further comprises a protective cover retractably sleeved between the outer peripheral surface of the bottom side of the hollow bar and the outer peripheral surface of the bottom side of the abutting block. The work chair as claimed in claim 2, wherein each leg rod set includes two pivot parts disposed on the second side surface of the seat plate for pivoting the respective leg rods, and two pivot parts respectively disposed on the pivot A limiting portion on the top side of the shaft portion that can limit the corresponding rotation angle of the foot rod. The work chair according to claim 1, wherein the fixing belt unit further comprises a second fixing belt set suitable for being detachably looped around the lower edge of the user's buttocks and connected to the seat plate. The work chair according to claim 6, wherein the first fixing belt set has two first fixing belts suitable for jointly surrounding the user's waist and respectively connected to the left and right opposite sides of the seat plate, and two respectively The connecting pieces are arranged on the two end portions of the first fixing belts opposite to the base plate and are detachably connected to each other. The work chair according to claim 7, wherein the first fixing belt set further has a plurality of storage pockets respectively disposed on the outer side of at least one of the first fixing belts opposite to the user.

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