TWM512346U - Multifunctional stretchable chair - Google Patents

Description

Multifunctional stretching chair

The present invention relates to a seat, and more particularly to a multifunctional stretching chair.

Modern people pay more and more attention to the concept of health care. Among them, fitness has become an emerging form of exercise. With the development and advancement of modern technology, fitness equipment for assisting users in training various parts of the body has emerged. For example: Treadmills, steppers, sit-up boards, etc. However, most fitness equipment can only be used for a single type of training program, but not for the user to use the same equipment for multiple parts of training. In addition, due to the large Some fitness equipments are bulky. If consumers buy them and put them in their homes, they will take up a lot of indoor space when they are not used, which will reduce the general public's desire to buy. Indirectly, most people can only achieve the purpose of training through the gym. And can't exercise at home.

In addition, in the above-mentioned fitness equipment, the user mainly relies on the strength of the waist to lift the upper body of the reclining when operating the sit-up board. However, the user often exerts excessive force due to the excessive angle of the reclining, resulting in the waist. Muscle strain.

Therefore, the purpose of the novel is to provide a variety of Sport mode and versatile stretch chair for general seating.

Therefore, the novel multifunctional stretching chair comprises a supporting unit, a transmission unit, a pad unit and a seat back unit.

The support unit includes a main frame that extends obliquely upward and rearward, a front leg that extends forward from the main frame, and a plurality of rear legs that extend rearward from the main frame.

The transmission unit includes a foot lever pivotally extending from the front end of the front leg and extending upwardly, a link group pivotally connected to the foot bar and foldable on the front leg, and a pivoting link The group can be partially folded into the seat link of the main frame.

The seat cushion unit includes a pivoting seat pivotally disposed at a front end of the seat cushion link, and a seat cushion disposed at the rear of the pivoting seat and located behind the footrest.

The seat back unit includes a seat back frame connected to the seat cushion link and extending upward and backward, a rotating base pivoted on a top end of the seat back frame, and a rotating seat disposed on the rotating seat and located above the seat cushion Chair back.

The seat cushion unit and the seat back unit can be coupled to the pedal link, interlocking the link set and the seat cushion link, and changing from a sitting position to a step position, and then rotating the seat back backwards. Arriving at a sit-up position and a stretched position, the seat back is slightly tilted back in the sit-up position, and in the stretched position, the seat back is rotated to a highest point slightly below the seat cushion.

The utility model has the advantages that: by providing the transmission unit, the user can apply the force to the foot lever, interlock the link group and the seat cushion link, and utilize the rotatable characteristics of the seat back The seat cushion unit and the seat back unit can be changed from the sitting position to the step position, the sit-up position The position of the stretching or the stretching position can achieve the effects of various sports modes, and the present invention can also be used as a general seat, and has the advantage of not occupying space.

2‧‧‧Support unit

21‧‧‧Main frame

22‧‧‧Front stand

221‧‧‧foot frame

222‧‧‧ Cover

223‧‧‧Folding space

23‧‧‧Back tripod

3‧‧‧Transmission unit

31‧‧‧foot pole

311‧‧‧ Telescopic rod

312‧‧‧Treading

32‧‧‧ linkage group

321‧‧‧first link

322‧‧‧second link

33‧‧‧Cushion connecting rod

331‧‧‧Upright pole

332‧‧‧ horizontal pole

34‧‧‧Fixed tablets

35‧‧‧ Connecting rod

36‧‧‧Flexible components

4‧‧‧Cushion unit

41‧‧‧ pivoting seat

42‧‧‧ Seat cushion

43‧‧‧ gripping department

5‧‧‧back unit

51‧‧‧back frame

511‧‧‧Bending Department

52‧‧‧ rotating seat

53‧‧‧Back of the chair

531‧‧‧Abutment

8‧‧‧Users

9‧‧‧ horizontal plane

A‧‧‧ arrow

A’‧‧‧ arrow

B‧‧‧ arrow

B’‧‧‧ arrow

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view illustrating an embodiment of the multi-functional stretching chair of the present invention; FIG. 2 is a perspective view illustrating FIG. 3 is a side elevational view of the present embodiment; FIG. 4 is a partially enlarged side elevational view showing a manner of connecting a transmission unit, a pivoting seat and a seat back frame of the embodiment. In the figure, one of the fixing pieces of the transmission unit is omitted; FIG. 5 is a schematic view showing the operation state of the user when the embodiment is in a step position; FIG. 6 is a schematic view showing the state of use of the embodiment. a user's operation situation in a sit-up position; FIG. 7 is a schematic view showing the operation state of the user when the embodiment is in a stretched position; and FIG. 8 is a use state diagram illustrating the present embodiment. The case is used as a general seat.

Referring to FIG. 1 to FIG. 4, an embodiment of the multi-functional stretching chair of the present invention comprises a supporting unit 2, a transmission unit 3, a pad unit 4 and a chair. Back unit 5.

The support unit 2 includes a main frame 21 extending obliquely upward and rearward, a front leg frame 22 extending forward from the main frame 21, and a rear leg frame 23 respectively extending rearward from the main frame 21 and expanding in opposite directions.

The front leg frame 22 has two leg portions 221 which are respectively disposed on both sides of the main frame 21 and are bent downward, and a cover portion 222 disposed at an end of the leg portions 221 . The tripod portion 221 and the cover portion 222 cooperate to define a folding space 223.

The transmission unit 3 is a four-bar linkage mechanism, and includes a footrest 31 pivotally extending from the front end of the front leg frame 22 and extending upwardly. The pivoting bar 31 is pivotally connected to the footrest 31 and can be folded on the front leg frame 22 a connecting rod group 32 in the folding space 223, a seat belt link 33 and a second pivotal connection to the connecting rod set 32 and partially foldable to the main frame 21 are respectively disposed on two sides of the main frame 21 and The front end is pivotally disposed on the fixing piece 34 of the seat cushion link 33, a connecting rod 35 pivotally connected to the fixing piece 34, and an elastic member 36 extending from the main frame 21 to the connecting rod set 32.

The pedal lever 31 has a telescopic rod portion 311 pivotally connected to the link group 32 and adjustable in length, and a pedal portion 312 laterally disposed at an end of the telescopic rod portion 311.

The connecting rod set 32 is a two-bar linkage mechanism, and has a first connecting rod 321 pivotally connected to the telescopic rod portion 311 of the footrest 31, and a pair of ends and the first connecting rod 321 and The second link 322 is pivotally connected to the seat link 33.

The seat pad link 33 has an inverted L shape and has a An upright rod portion 331 slidably disposed on the main frame 21 and pivotally connected to the second link 322, and a horizontal rod portion 332 extending forward from a top end of the upright rod portion 331.

The front end of the fixing piece 34 is pivotally disposed on the horizontal rod portion 332 of the seat cushion link 33, and is positioned higher than the front leg frame 22 and the rear leg frame 23.

The connecting rod 35 is spaced apart from the horizontal rod portion 332 of the seat cushion link 33 and extends in a direction parallel to the horizontal rod portion 332.

The elastic member 36 extends from the main frame 21 to the first link 321 of the link set 32 and has an elastic restoring force.

The seat cushion unit 4 includes a horizontal rod portion 332 pivotally disposed on the seat rod link 33 and a pivoting seat 41 at the front end of the connecting rod 35. The pivoting seat 41 is disposed on the pivoting seat 41 and behind the footrest 31. The seat cushions 42 and the two are respectively disposed on the bottom surface of the seat cushion 42 adjacent to the left and right side edges of the grip portion 43.

It should be noted that, during the rotation of the seat cushion link 33, the connecting rod 35 is kept parallel to the horizontal rod portion 332, and the connecting rod 35, the horizontal rod portion 332 and the fixing pieces 34 and the The connection of the pivot point of the pivoting seat 41 is always maintained in a parallelogram shape.

The seat back unit 5 includes a seat back frame 51 connected to the horizontal rod portion 332 of the seat cushion link 33 and extending rearward and backward, a rotating seat 52 pivoted on the top end of the seat back frame 51, and a setting The seat back 53 is located on the rotating base 52 and above the seat cushion 42.

The seat back frame 51 has two L-shaped elbow portions 511 respectively disposed on two sides of the horizontal rod portion 332, and the rotating base 52 is pivoted on the same The tip end of the bent portion 511.

The seat back 53 has a curved face abutting surface 531 for forming a large reclining angle.

Referring to FIG. 3 and FIG. 5, in actual operation, the embodiment is placed on a horizontal plane 9. The seat cushion unit 4 and the seat back unit 5 are in a sitting position, and the user 8 rides on the seat cushion 42 and doubles The foot is placed on the step portion 312 of the foot lever 31. At this time, the foot lever 31 is rotated in a direction as indicated by an arrow A in FIG. 3 by applying a downward force to the foot lever 31. Adjacent to the horizontal plane 9 (see FIG. 5), the link set 32 and the seat cushion link 33 are interlocked to drive the seat cushion 42 to rise, and the seat back frame 51 is reversed along a direction as shown in FIG. The arrow A of the arrow A rotates in the direction of the arrow B, and the seat back 53 is tilted backward, so that the seat cushion unit 4 and the seat back unit 5 are changed from the sitting position to a step position. At this time, the user 8 utilizes the legs. The force supports the weight of the upper body and counteracts the elastic restoring force of the elastic member 36. When the knee is bent, the pedal 31 rotates in a direction as indicated by an arrow A' in FIG. 5, and the link set 32 is interlocked. And the seat cushion link 33 rotates the seat back frame 51 in a direction opposite to the arrow B' of the arrow A', and drives the seat cushion 42 to descend to the original Height, and complete a cycle of stepping motion, and repeat the knee bending and straightening legs to achieve the effect of training the leg muscles. It is worth noting that during the movement, the user 8's hands are located The grips 43 on both sides of the seat cushion 42 maintain the balance of the body.

It is worth mentioning that, when performing the above-mentioned stepping operation, the position of the user 8 on the seat cushion 42 affects the magnitude of the force applied to the legs, and when the position of the seat is closer to the front end of the seat cushion 42, the user 8 center of gravity The closer to the pivot point of the foot lever 31 and the link group 32, according to the principle of the lever, the greater the force required to straighten the legs from the state of bending the knee, and vice versa, the closer the position is to the ride At the rear end of the seat cushion 42, the less effort is required for the legs, so that the user 8 can adjust the strength of the training by changing the position of the ride.

Referring to FIG. 3 and FIG. 6 , in the sitting position, the user 8 can apply downward force on the foot lever 31 to rotate the foot lever 31 in the direction of the arrow A to be slightly 15° from the horizontal plane 9 . And the angle of the seat cushion 42 is raised, and the seat back frame 51 is rotated in the direction of the arrow B, and the upper body is tilted back and abuts against the abutting surface 531 of the seat back 53 to meet individual needs. The back tilting degree of the seat back 53 is adjusted by the back force, so that the seat cushion unit 4 and the seat back unit 5 reach a sit-up position. At this time, the user 8 uses the two legs to apply force to maintain the seat back 53. In a backward tilting state, the sit-ups can be repeated to achieve the effect of training the waist muscles.

It is worth mentioning that, in the process of lifting the upper body, the user 8 presses the seat cushion link 33 downwardly using the buttocks in addition to the strength of the waist, and utilizes the elastic return of the elastic member 36. The force assists the seat cushion unit 4 and the seat back unit 5 to be reset to the sitting position, thereby reducing the burden on the waist and the spine without causing a situation in which the conventional sit-up board is pulled due to operational discomfort.

Referring to FIG. 6 and FIG. 7, in the sit-up position, the user 8 can hold both hands on the grip portion 43 and apply force to the back 53 by the back to make the back of the seat back frame 51. The angle of inclination is greater, and the seat cushion 42 is slightly raised and the footrest 31 is adjacent to the horizontal plane 9, and the seat back 53 is Rotating backward to the highest point is slightly lower than the seat cushion 42. At this time, the seat cushion unit 4 and the seat back unit 5 reach a stretching position, and the user 8 can fully stretch the muscles of the back, waist and legs, in addition In this embodiment, the abutting surface 531 of the seat back 53 is also characterized by a curved surface. When the back of the user 8 abuts against the abutting surface 531, the angle of the reclining can be increased, thereby enhancing the stretching effect. .

Referring to FIG. 8 , in addition to being able to perform the above three different motion modes by the user 8 , when the seat cushion unit 4 and the seat back unit 5 are in the sitting position, the pedal lever 31 is folded upward. After reaching the seat cushion 42, it can also be used as a general seat. Therefore, it is very suitable for consumers to put in the office or home after purchase, as an office chair or a home chair, without causing the disadvantage of occupying space, and For the user 8 to exercise at work or leisure.

Through the above description, the advantages of the present invention can be summarized as follows:

1. The connecting relationship between the transmission unit 3 and the seat cushion unit 4 and the seat back unit 5, when the user 8 applies the downward force to the pedal lever 31, the linkage group 32 and the seat are interlocked. The pad link 33 further drives the seat cushion 42 to rise and tilts the seat back 53 rearward, so that the seat cushion unit 4 and the seat back unit 5 are changed from the sitting position to the step position, and the rotating seat is provided 52, the backrest is applied to the back 53 of the back, and the step position is changed to the sit-up position or the stretched position, thereby achieving the effect of having multiple motion modes.

Second, the seat pad link 33 and the pivot seat 41 and the chair The back frame 51 is pivotally connected to allow the user 8 to apply the weight of the body to the seat cushion 42 during the process of getting up, for assisting the seat cushion unit 4 and the seat back unit 5 to be reset to the sitting position, thereby reducing The burden on specific parts of the body reduces the risk of strain and improves safety during operation.

3. When the seat cushion unit 4 and the seat back unit 5 are located in the sitting position, the present invention can also be used as a general seat, which has the advantage of not occupying space, and allows the user 8 to exercise at any time during the ride. The body achieves multiple effects.

In summary, it is indeed possible to achieve the purpose of the novel.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

2‧‧‧Support unit

21‧‧‧Main frame

22‧‧‧Front stand

221‧‧‧foot frame

222‧‧‧ Cover

223‧‧‧Folding space

23‧‧‧Back tripod

3‧‧‧Transmission unit

31‧‧‧foot pole

311‧‧‧ Telescopic rod

312‧‧‧Treading

32‧‧‧ linkage group

321‧‧‧first link

322‧‧‧second link

33‧‧‧Cushion connecting rod

36‧‧‧Flexible components

4‧‧‧Cushion unit

42‧‧‧ Seat cushion

43‧‧‧ gripping department

5‧‧‧back unit

51‧‧‧back frame

511‧‧‧Bending Department

53‧‧‧Back of the chair

531‧‧‧Abutment

Claims (10)

A multifunctional stretching chair comprises: a supporting unit comprising a main frame extending obliquely upward and rearward, a front leg extending forwardly from the main frame, and a plurality of rear legs respectively extending rearward from the main frame; a transmission unit includes a foot lever pivotally extending from the front end of the front leg and extending upwardly, a link group pivotally connected to the foot bar and foldable to the front leg, and a pivoting link The pole set is partially folded into the seat link of the main frame; a pad unit includes a pivoting seat pivotally disposed at a front end of the seat bar link, and a pivoting seat disposed at the pivoting seat and located at the foot a seat cushion behind the pedal; and a seat back unit, comprising a seat back frame connected to the seat cushion link and extending upward and backward, a rotating seat pivoted at a top end of the seat back frame, and a seat Rotating the seat and the seat back above the seat cushion, the seat cushion unit and the seat back unit can be coupled to the footrest, interlocking the link set and the seat cushion link, and changing from a sitting position to a stepping position, and then turning the back of the chair backwards to reach a sit-up position and an extended position, When the sit-up position, the seat back tilting backward and, at the extended position, the seat back is rotated to the highest point just below the seat cushion. The multi-functional stretching chair according to claim 1, wherein the connecting rod set has a first connecting rod pivotally connected to the footrest, and a pair of ends and the first connecting rod and the seat cushion respectively a second link pivotally connected to the link. The multi-functional stretching chair according to claim 2, wherein the seat cushion link has an upright rod portion slidably disposed on the main frame and pivotally connected to the second link, and a vertical rod portion The top end extends forward to the horizontal shank of the pivoting seat. The multi-functional stretching chair according to claim 3, wherein the transmission unit further comprises two fixing pieces respectively disposed on the two sides of the main frame and having a front end pivoted on the horizontal rod portion, and one end of each of the two sides is pivotally connected a fixing piece and a connecting rod spaced apart from the horizontal rod portion, and the fixing piece is positioned higher than the front leg frame and the rear leg frame, and the connecting piece is connected during the rotation, the connection The rod is kept parallel to the horizontal rod. The multi-functional stretching chair according to claim 3, wherein the seat back frame has two curved portions respectively disposed on two sides of the horizontal rod portion and having an L shape, and the rotating seat is pivotally disposed on the curved tubes The top of the department. The multi-functional stretching chair according to claim 2, wherein the transmission unit further comprises an elastic member extending from the main frame to the first link and having an elastic restoring force, the elastic restoring force assisting the seat The pad unit and the seat back unit are reset to the sitting position. The multi-functional stretching chair according to claim 1, wherein the front leg has two leg portions respectively disposed on both sides of the main frame and bent downward, and one set is disposed at the end of the leg portions The cover portion, the tripod portion and the cover portion cooperate to define a folding space for accommodating the link set. The multi-functional stretching chair according to claim 1, wherein the pedal lever has a telescopic rod portion pivotally connected to the link group and adjustable in length, and a tread portion laterally disposed at an end of the telescopic rod portion. Rod. The multi-functional stretching chair according to claim 1, wherein the seat cushion unit further comprises two gripping portions respectively disposed on adjacent left and right side edges of the bottom surface of the seat cushion. The multifunctional stretching chair according to claim 1, wherein the seat back has a curved surface that is bent back and has a curved surface.