CN203280973U - Waist-straightening sit-up bench - Google Patents
Waist-straightening sit-up bench Download PDFInfo
- Publication number
- CN203280973U CN203280973U CN2013202756461U CN201320275646U CN203280973U CN 203280973 U CN203280973 U CN 203280973U CN 2013202756461 U CN2013202756461 U CN 2013202756461U CN 201320275646 U CN201320275646 U CN 201320275646U CN 203280973 U CN203280973 U CN 203280973U
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- rod
- pin
- bar
- frame
- side arm
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Abstract
The utility model discloses a waist-straightening sit-up bench. The waist-straightening sit-up bench comprises a front frame and a rear frame which are connected together, wherein a supporting rod is arranged at the upper portion of the front frame, the upper end of the front frame is hinged to a foot hooking connecting rod, a foot hooking rod is arranged at the other end of the foot hooking connecting rod, a draw cord is connected between the foot hooking connecting rod and the lower portion of the front frame, a seat cushion is arranged at the front portion of the rear frame, the rear portion of the rear frame is hinged to a leaning rod, a back cushion and a headrest are fixed to the front side of the leaning rod, and tension devices and angle adjustment devices are arranged between the leaning rod and the rear frame. According to each tension device, a tension spring is connected between the position, located in front of a hinging position of the leaning rod and the rear frame, on the rear frame and the leaning rod, a supporting wheel is in pivot joint with a hinging position between the leaning rod and the rear frame, and the middle of the tension spring is supported on the supporting wheel. The waist-straightening sit-up bench has the advantage that the tension devices operate smoothly.
Description
Technical field
The present invention relates to the body-building apparatus technical field, especially relate to a kind of very waist board for lying on back.
Background technology
Can provide for the person taking exercise board for lying on back of the multiple exercising waies such as sit-ups, the exercise of waist and abdomen muscles meat widely to use.Concrete, this board for lying on back comprises side arm and the after-frame that links together, and this side arm top is provided with support bar, and the upper end of this side arm is hinged with pin and links bar, the other end that this pin links bar is provided with the pin raker, and this pin links between the bottom of bar and this side arm and is connected with stay cord.The front portion of this after-frame is provided with seat cushion, rear portion is hinged with rod.The front side of this rod is fixed with back cushion and headrest, and is provided with puller system and angle regulator between this rod and this after-frame.But most board for lying on backs have following defect: 1, the running of this puller system is smooth and easy not.2, it is firm not that the angle of this rod is fixed (also be about to this rod and be stable at a suitable elevation angle).3, the use of this back cushion is comfortable not.4, momental adjusting is convenient not.5, in a single day the situation of stay cord fracture occurs, this pin links bar and is easy to out of hand and hurts sb.'s feelings, and is safe not.
Summary of the invention
The purpose of this invention is to provide a kind of very waist board for lying on back, the running that it has this puller system is characteristics comparatively smoothly.After optimization, it also have the angle of rod fixing comparatively firm, back cushion is comparatively comfortable, amount of exercise is easy to regulate, safer characteristics.
the technical solution adopted in the present invention is: endure the waist board for lying on back, comprise the side arm and the after-frame that link together, wherein, this side arm top is provided with support bar, the upper end of this side arm is hinged with pin and links bar, the other end that this pin links bar is provided with the pin raker, and this pin links between the bottom of bar and this side arm and is connected with stay cord, the front portion of this after-frame is provided with seat cushion, rear portion is hinged with rod, the front side of this rod is fixed with back cushion and headrest, and be provided with puller system and angle regulator between this rod and this after-frame, described puller system is: be connected with extension spring on this after-frame between the place ahead of the hinged part of this rod and this after-frame and this rod, the hinged part of this rod and this after-frame is articulated with support wheel, and the middle part of this extension spring is supported on this support wheel.
Described angle regulator is: the bottom of this after-frame is provided with adjustable plate, has locating hole on this adjustable plate, is inserted with " U " shape latch in this locating hole, and simultaneously, the lower end of this rod extends or lower than the height at this adjustment hole place.
The cylinder that leans on that described back cushion comprises the square backup plate that is positioned at this rod middle part and lays respectively at these both sides, square backup plate up and down.
Described pin links between bar and this side arm and is provided with positioner.
Described positioner is: this side arm is provided with pin-and-hole, and this pin links on bar and has and jack that this pin-and-hole matches, and is inserted with pin in this pin-and-hole and this jack.
Described pin links bar and is provided with at least 2 pulling force adjustment holes, and the pin that the upper end of this stay cord is connected with and this pulling force adjustment hole matches.
Described stay cord is 1.
Described pin links on bar and is positioned at the place ahead that this pin links the hinged part of bar and this side arm and is provided with limiting plate, and this limiting plate can contact with this side arm.
The advantage that compared to the prior art the present invention has is: 1, the puller system running is smooth and easy.The very middle part of the extension spring of the puller system of waist board for lying on back of the present invention is subject to the support of support wheel, relies on the rotation of this support wheel, and this extension spring can realize stretching smoothly.2, the angle of rod is fixing comparatively firm.The bottom of this rod can be inserted in the inside of this " U " shape latch, thereby not only easy to operate, and should " U " shape latch this rod has been carried out comparatively stable spacing, makes this rod can be in stable angle.3, back cushion is comfortable.This back cushion not only has square backup plate, and the both sides of this square backup plate also are provided with by cylinder, thereby the pressure that person taking exercise's back is subject to is less, comparatively comfortable.4, amount of exercise is easily transferred.Only need pin is inserted in different pulling force adjustment holes, can realize the adjusting of stay cord pulling force, thereby realize the adjusting of person taking exercise's exercise intensity, very easy.5, safer.Even if fracture appears in stay cord, this limiting plate also can limit this pin and link bar at a high speed near the person taking exercise, thereby safer.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
Fig. 1 is the schematic perspective view of embodiments of the invention;
Fig. 2 is the schematic perspective view of angle regulator of the present invention;
Fig. 3 is the front view (broken section) that pin of the present invention links bar and is connected with side arm.
The specific embodiment
Embodiment, see that Fig. 1 is to shown in Figure 3: endure the waist board for lying on back, comprise side arm 11 and after-frame 12 L-shaped or that " fourth " font links together.Wherein, these side arm 11 tops are provided with support bar 20, and the upper end of this side arm 11 is hinged with pin and links bar 30, and the other end that this pin links bar 30 is provided with pin raker 31, and this pin links between the bottom of bar 30 and this side arm 11 and is connected with stay cord 32.The front portion of this after-frame 12 is provided with seat cushion 40, rear portion is hinged with rod 50.The front side of this rod 50 is fixed with back cushion 60 and headrest 70, and is provided with puller system 80 and angle regulator 90 between this rod 50 and this after-frame 12.Like this, very the waist board for lying on back can be achieved as follows several exercising waies: 1, sit-ups.By angle regulator 90, this rod 50 is stable at different angle (this angle refers to this rod and horizontal angle), such as: this angle is the 115o left and right.At this moment, the person taking exercise faces upward and lies on this seat cushion 40 and this back cushion 60, and thigh is subject to the support of this support bar 20, and ankle section hooks on this pin raker 31, can carry out sit-up exercise.2, waist muscle is taken exercise.Cancel the effect of this angle regulator 90, make this rod 50 repeatedly lean forward or to swing back.Like this, the person taking exercise is sitting on this seat cushion 40, and thigh is subject to the support of this support bar 20, and ankle section hooks on this pin raker 31, leans against this back cushion 60, overcomes the elastic force of this puller system 80, and layback, perform physical exercise to waist muscle repeatedly.3, endure waist.The angle that makes this rod 50 by this angle regulator 90 is greater than 180o, and the person taking exercise faces upward and lies on this seat cushion 40 and this back cushion 60, waist can be straightened.4, foot's strength is taken exercise.The person taking exercise is sitting on this seat cushion 40, and thigh is subject to the support of this support bar 20, and ankle section triggers this pin raker 31 repeatedly, can perform physical exercise to leg muscle.5, arm strength is taken exercise.This pin raker 31 of pull-up, can perform physical exercise to arm strength repeatedly.
Further say, this puller system 80 is: the place ahead that is positioned at the hinged part of this rod 50 and this after-frame 12 on this after-frame 12 is connected with extension spring 81, and the other end of this extension spring 81 is connected on this rod 50.That is, this extension spring 81 is the critical piece that this puller system 80 produces pulling force.Simultaneously, the hinged part of this rod 50 and this after-frame 12 is articulated with support wheel 82, and the middle part of this extension spring 81 is supported on this support wheel 82.Like this, the rotation of this support wheel 82 makes the flexible comparatively smooth and easy of this extension spring 81.
Optimize:
This angle regulator 90 is: the bottom of this after-frame 12 is provided with adjustable plate 91, has locating hole 92 on this adjustable plate 91, is inserted with " U " shape latch 93 in this locating hole 92.That is, the locating hole 92 that is positioned at these adjustable plate 91 middle parts should distribute in pairs, thereby 2 plugs being convenient to this " U " shape latch 93 all can inject in this locating hole 92.Certainly, the locating hole 92 that is positioned at these adjustable plate 91 avris need not to be paired setting.At this moment, the lower end of this rod 50 extends or lower than the height at these adjustment hole 92 places.That is, the bottom of this rod 50 can be subject to the restriction of this " U " shape latch 93.Like this, the bottom of this rod 50 can be inserted in the centre of this " U " shape latch 93, thereby makes this rod 50 can be stable at certain angle.
This back cushion 60 comprise the square backup plate 61 that is positioned at these rod 50 middle parts and lay respectively at this square backup plate Shang Xia 61 both sides by the cylinder 62.Like this,, by increasing the contact area at this back cushion 60 and person taking exercise back, make person taking exercise's back comparatively comfortable.
This pin links between bar 30 and this side arm 11 and is provided with positioner 35.That is, under the effect of this positioner 35, this pin links bar 30 and can't rotate.Like this, when the person taking exercise carried out sit-ups, waist muscle exercise, the position of person taking exercise's ankle section was comparatively stable.Wherein, this positioner 35 is: this side arm 11 is provided with pin-and-hole 351, and this pin links on bar 30 and has and jack 352 that this pin-and-hole 351 matches.That is, this pin-and-hole 351 and this jack 352 can align.And after this pin-and-hole 351 and this jack 352 align, their inside is inserted with pin 353.Obviously, such positioner 35 is simple in structure, easy operating.
This pin links bar 30 and is provided with at least 2 pulling force adjustment holes 33, and the pin 34 that the upper end of this stay cord 32 is connected with and this pulling force adjustment hole 33 matches.That is, after being inserted in this pin 34 in different pulling force adjustment hole 33, variation has namely occurred in the initial length of this stay cord 32, thereby makes the person taking exercise can obtain easily different exercise intensities.Wherein, in order further to reduce the simplicity of regulating, this stay cord 32 only uses 1.
This pin links on bar 30 and is positioned at the place ahead that this pin links the hinged part of bar 30 and this side arm 11 and is provided with limiting plate 36, and this limiting plate 36 can contact with this side arm 11.That is, this limiting plate 36 contacts with this side arm 11 and against rear, this pin links bar 30 can't be continued to rotate up.Like this, even if these stay cord 32 fractures, this limiting plate 36 also can limit this pin and link bar 30 at a high speed near the person taking exercise, thereby has increased this very safety in utilization of waist board for lying on back.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (8)
1. endure the waist board for lying on back, comprise the side arm (11) and the after-frame (12) that link together, wherein, this side arm (11) top is provided with support bar (20), the upper end of this side arm (11) is hinged with pin and links bar (30), the other end that this pin links bar (30) is provided with pin raker (31), and this pin links between the bottom of bar (30) and this side arm (11) and is connected with stay cord (32), the front portion of this after-frame (12) is provided with seat cushion (40), rear portion is hinged with rod (50), the front side of this rod (50) is fixed with back cushion (60) and headrest (70), and be provided with puller system (80) and angle regulator (90) between this rod (50) and this after-frame (12), it is characterized in that: described puller system (80) is: be positioned on this after-frame (12) between the place ahead of hinged part of this rod (50) and this after-frame (12) and this rod (50) and be connected with extension spring (81), the hinged part of this rod (50) and this after-frame (12) is articulated with support wheel (82), and the middle part of this extension spring (81) is supported on this support wheel (82).
2. very waist board for lying on back according to claim 1, it is characterized in that: described angle regulator (90) is: the bottom of this after-frame (12) is provided with adjustable plate (91), have locating hole (92) on this adjustable plate (91), be inserted with " U " shape latch (93) in this locating hole (92), simultaneously, the lower end of this rod (50) extends or lower than the height at this adjustment hole (92) place.
3. very waist board for lying on back according to claim 1, is characterized in that: lean on tin (62) that described back cushion (60) comprises the square backup plate (61) that is positioned at this rod (50) middle part and lays respectively at these both sides, square backup plate (61) up and down.
4. very waist board for lying on back according to claim 1, it is characterized in that: described pin links between bar (30) and this side arm (11) and is provided with positioner (35).
5. very waist board for lying on back according to claim 4, it is characterized in that: described positioner (35) is: this side arm (11) is provided with pin-and-hole (351), this pin links on bar (30) and has and jack (352) that this pin-and-hole (351) matches, and is inserted with pin (353) in this pin-and-hole (351) and this jack (352).
6. very waist board for lying on back according to claim 1, it is characterized in that: described pin links bar (30) and is provided with at least 2 pulling force adjustment holes (33), and the pin (34) that the upper end of this stay cord (32) is connected with and this pulling force adjustment hole (33) matches.
7. very waist board for lying on back according to claim 6, it is characterized in that: described stay cord (32) is 1.
8. the described very waist board for lying on back of any one according to claim 1 to 7, it is characterized in that: described pin links on bar (30) and is positioned at the place ahead that this pin links the hinged part of bar (30) and this side arm (11) and is provided with limiting plate (36), and this limiting plate (36) can contact with this side arm (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202756461U CN203280973U (en) | 2013-05-17 | 2013-05-17 | Waist-straightening sit-up bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202756461U CN203280973U (en) | 2013-05-17 | 2013-05-17 | Waist-straightening sit-up bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203280973U true CN203280973U (en) | 2013-11-13 |
Family
ID=49537356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202756461U Expired - Fee Related CN203280973U (en) | 2013-05-17 | 2013-05-17 | Waist-straightening sit-up bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203280973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749491A (en) * | 2016-04-29 | 2016-07-13 | 姚谷丰 | Abdominal muscle building sit-up plate |
| CN110237497A (en) * | 2019-06-27 | 2019-09-17 | 安徽商贸职业技术学院 | A kind of multi-gym |
-
2013
- 2013-05-17 CN CN2013202756461U patent/CN203280973U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749491A (en) * | 2016-04-29 | 2016-07-13 | 姚谷丰 | Abdominal muscle building sit-up plate |
| CN110237497A (en) * | 2019-06-27 | 2019-09-17 | 安徽商贸职业技术学院 | A kind of multi-gym |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20170517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |