CN200998561Y

CN200998561Y - Situp training device

Info

Publication number: CN200998561Y
Application number: CNU2007200950495U
Authority: CN
Inventors: 吕清山
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-24
Filing date: 2007-01-24
Publication date: 2008-01-02
Anticipated expiration: 2017-01-24

Abstract

The utility model discloses a sit-up training device, which comprises a main frame, which is provided with a seat; a back frame, which is pivoted on the main frame, and an extension part is extended on the back frame; an elastic piece, one end of which is connected on the extension part, the other end of which is connected at one end of an moving piece which can axially moves, the other end of the moving piece is penetrated through the seat and an adjustment piece, and the adjustment piece is propped against the seat, in order that the other end of the elastic piece is a fixed end and one end of the elastic piece connected on the extension part is a stressed tension end. The utility model utilizes the aid of the elastic restoring force of the elastic piece installed between the main frame and back frame to assist users lift the upper half of the body during the sit-up sport and return to the sit gesture, and through adjusting the sum of the length from the elastic piece and the moving piece to the seat, the elastic restoring force of the elastic piece is changed, to be suitable for the users with different weights, and the gradual type abdominal muscle training is performed through the adjustment of different elastic restoring forces.

Description

The sit-ups trainer

Technical field

The utility model relates to a kind of exercising device, relate in particular to a kind of by elastic component power-assisted and auxiliary user replys the sit-ups trainer of sitting posture state.

Background technology

As shown in Figure 6, be existing sit-ups fitness equipment, it is to be made of a upper support bar 71 and a lower support bar 72.The top of lower support bar 72 is provided with kneepad cross bar 721, and this kneepad cross bar 721 fastens for user's knee joint, and the stage casing of lower support bar 72 is provided with foot pad cross bar 722, and this foot pad cross bar 722 supplies user's ankle-joint by putting.Upper support bar 71 1 ends are positioned over ground, and upper support bar 71 other ends then are linked to lower support bar 72 tops, and it is provided with a back cushion 73, couch with the upper part for user's buttocks.

Yet, because 71,72 of upper and lower support bars fix with each other, upper support bar 71 swing that can't pivot, when causing the user to carry out sit-up movement, the user must complete self-dependent waist power mention the upper part of the body, for beginner or physical efficiency chump, often does several times and has not just had power, make that intentionally the people of motion is afraid to advance, fear.

Therefore, just there is another kind of assist type sit-ups fitness equipment to occur, as shown in Figure 7, its sit-ups fitness equipment mainly is made up of a body frame 81, a back of the body frame 82, two elastic components 83, body frame 81 is to be articulated in back of the body frame 82, body frame 81 more oblique extension one extension rod 811, two elastic components 83 1 ends are hubbed at this extension rod 811, and the other end then is hubbed at back of the body frame 82.When the user carries out the motion of sit-ups, the user utilizes the body weight of self earlier and will carry on the back frame 82 pivot pendulum and lying down backward, utilize the booster action of the restoring force of elastic component 83 again, and mention above the waist and the answer sitting posture of taking advantage of a situation, therebetween needn't complete self-dependent waist power, can carry out the motion of sit-ups.

Yet this kind assist type sit-ups fitness equipment still is to have following shortcoming:

1, the user can't adjust the restoring force of its elastic component.Because the restoring force of elastic component 83 is a fixed value, the people that can not adapt to different weight adjusts, and therefore, the people that body weight is lighter can't utilize the body weight of self easily and will carry on the back frame 82 and topple over backward, uses inconvenient.

2, take in inconvenience, can't promote loading quantity.Because fitness equipment itself just occupies suitable accommodation space, adding can't folding, therefore, takes in comparatively inconveniently, is not easy to the carrying collection.In addition, in the time will casing shipping, also, certainly will expend bigger accommodation space because fitness equipment can't folding, the space utilization variation when causing loading, and can't effectively promote loading quantity.

The utility model content

Technical problem underlying to be solved in the utility model is, overcome the above-mentioned defective that prior art exists, and provide a kind of sit-ups trainer, it can change the elastic-restoring force of elastic component, with the user's that adapts to different weight use, can be in motion process, to same user by the elastic-restoring force that adjusts in various degree, and carry out gradual stomach workout, and has the advantage of convenient for collecting.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of sit-ups trainer is characterized in that, comprising: a body frame is provided with one; One back of the body frame is to be hubbed at this body frame, and this back of the body frame extends an extension; One elastic component, the one end is connected with in this extension, this elastic component other end then is connected with can axially movable moving member one end in one, this moving member other end is placed through this seat and an adjustment part, this adjustment part is resisted against this seat, make that this elastic component other end is a stiff end, an end that is linked to the elastic component of this extension is stressed stretching end.

Aforesaid sit-ups trainer, wherein elastic component is a spring, and this moving member is a screw rod, and this adjustment part is a knob, and this adjustment part also revolves and is located at this moving member.

Aforesaid sit-ups trainer, wherein body frame is provided with a seat cushion, and described back of the body frame is provided with a back cushion and a headrest, corresponding described body frame, the described back of the body has set up a buffer stopper.

Aforesaid sit-ups trainer, wherein body frame more extends the support that is pivoted, and this support is to be fixedly arranged on described body frame through placing a latch.

Aforesaid sit-ups trainer, the extension of wherein carrying on the back frame is provided with a magnet, and to should magnet, described body frame be provided with a Magnetic Induction device, and this Magnetic Induction device is electrically connected at a display, and this display is provided with described body frame.

It mainly is the help that utilizes the elastic-restoring force that is installed in the elastic component between body frame and back of the body frame, and auxiliary user can mention in sit-up movement above the waist and reply the sitting posture state, and by adjust elastic component and moving member to the length between this with, and change the elastic-restoring force of elastic component, with the user's that adapts to different weight use.Moreover same user can by the elastic-restoring force that adjusts in various degree, and carry out gradual stomach workout, and can reach convenient for collecting in motion process, reaches the effect that increases shipping time space usability and promote every time loading quantity.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the three-dimensional appearance schematic diagram of the utility model embodiment

Fig. 2 is the perspective exploded view of the utility model embodiment

Fig. 3 is the schematic diagram of the utility model embodiment about the metering position

Fig. 4 is the action schematic diagram of the adjustment state of the utility model embodiment under the elastic-restoring force effect of elastic component

Fig. 5 is the action schematic diagram of the utility model embodiment in receiving state

Fig. 6 is the three-dimensional appearance schematic diagram of existing sit-ups fitness equipment

Fig. 7 is the side view of another kind of existing sit-ups fitness equipment

The specific embodiment

Seeing also Fig. 1 to Fig. 3, is the selected example structure of the utility model shown in the figure.

The sit-ups trainer of present embodiment comprises:

One body frame 1, it is provided with one 11, and body frame 1 is provided with a seat cushion 12, and body frame 1 one ends are provided with a cross bar 13 and can be placed in ground, and body frame 1 other end more extends the support 14 that is pivoted, and this support 14 is fixedly arranged on this body frame 1 through placing a latch 15.Be connected with a cross bar 141, that can be placed in ground on this support 14 and can reliably put the foot pad 143 of ankle-joint for the kneepad 142 and of knee joint latch closure.

One back of the body frame 2, it is to be hubbed at this body frame 1, and this back of the body frame 2 extends an extension 21, and this back of the body frame 2 more is provided with a back cushion 22 and and rests the head on 23, and to should body frame 1, this back of the body frame 2 be provided with a buffer stopper 24, to cushion the impact that is produced when this back of the body frame 2 is poured onto this body frame 1.

One elastic component 3, the one end is connected with in this extension 21, these elastic component 3 other ends then be connected with in one can axially movable moving member 31 an end, these moving member 31 other ends are placed through this seat 11 and an adjustment part 32, this adjustment part 32 is to be resisted against this seat 11, make that these elastic component 3 other ends are stiff end, an end that is linked to the elastic component 3 of this extension 21 is stressed stretching end.In the present embodiment, this elastic component 3 is a spring, and this moving member 31 is a screw rod, and this adjustment part 32 is a knob, and this adjustment part 32 revolves is located at this moving member 31.

As shown in Figure 3, in the present embodiment, the extension 21 of this back of the body frame 2 is provided with a magnet 41, to should magnet 41, this body frame 1 be provided with a Magnetic Induction device 42, and this Magnetic Induction device 42 is to be electrically connected at a display 43, this display 43 is arranged at support 14 tops of this body frame 1, calculate the number of times of every time sit-ups via magnetic action for Magnetic Induction device 42, and be shown in display 43, for the user provides relevant information.

When doing sit-up movement, the user brings into use this trainer with the sitting posture state, does when lying on the back action, and it utilizes body weight above the waist and makes back of the body frame 2 be poured onto body frame 1, at this moment, the extension 21 of back of the body frame 2 is towards the swing of seat cushion 12 directions and this elastic component 3 that stretches of taking advantage of a situation, otherwise, do when sitting action, utilize the elastic-restoring force of elastic component 3, and make back of the body frame 2 nature away from body frame 1 and erect, the user promptly whereby power-assisted mention above the waist and reply the sitting posture state, and finish the sit-ups of single.

As shown in Figure 4, this trainer can by adjust elastic component 3 and moving member 31 to this length of 11 and, and the elastic-restoring force that changes elastic component 3 is to suitable degree, with the user's that adapts to different weight and physical state use.The adjustment mode of the elastic-restoring force of its elastic component 3 is quite simple, the user makes moving member 31 axially move along body frame 1 through turn adjustment part 32, make to elongate or shorten, form the elastic-restoring force of elastic component 3 in various degree whereby from extension 21 to the length summation of this elastic component of 11 3 with moving member 31.

In addition, because this trainer can adjust elastic-restoring force in various degree, makes that same user can be in lasting sit-ups process, according to the present adaptable physical state of health, and lower the elastic recovery force intensity of elastic component 3 gradually, and do interim gradual stomach workout.

See also Fig. 1, Fig. 2 and Fig. 5, when the user desires to take in, be to pull out latch 15, and support 14 foldings are drawn close in body frame 1 below, and turn adjustment part 32, and will remove on the moving member 31 own elasticity spares 3, and make back of the body frame 2 have a down dip closing naturally in body frame 1 top, it is general like flat aspect to make that whole trainer becomes, i.e. the outward appearance volume-diminished of trainer, and promote the convenience of taking in.

By the explanation of the foregoing description as can be known, the utlity model has following advantage:

1, it is the help that utilizes the elastic-restoring force that is installed in the elastic component between body frame and back of the body frame, and auxiliary user can mention in sit-up movement above the waist and reply the sitting posture state, and by adjust elastic component and moving member to the length between this with, and change the elastic-restoring force of elastic component, with the user's that adapts to different weight use.Moreover same user can by the elastic-restoring force that adjusts in various degree, and carry out gradual stomach workout in motion process.

But 2, its be support and back of the body frame also folding draw close in body frame, and can reach convenient for collecting, and increase shipping time space usability and promote the effect of every time loading quantity.

Claims

1. a sit-ups trainer is characterized in that, comprising:

One body frame is provided with one;

One back of the body frame is to be hubbed at this body frame, and this back of the body frame extends an extension;

One elastic component, the one end is connected with in this extension, this elastic component other end then is connected with can axially movable moving member one end in one, this moving member other end is placed through this seat and an adjustment part, this adjustment part is resisted against this seat, make that this elastic component other end is a stiff end, an end that is linked to the elastic component of this extension is stressed stretching end.

2. sit-ups trainer according to claim 1 is characterized in that described elastic component is a spring, and this moving member is a screw rod, and this adjustment part is a knob, and this adjustment part also revolves and is located at this moving member.

3. sit-ups trainer according to claim 1 is characterized in that described body frame is provided with a seat cushion, and described back of the body frame is provided with a back cushion and a headrest, corresponding described body frame, and the described back of the body has set up a buffer stopper.

4. sit-ups trainer according to claim 1 is characterized in that described body frame more extends the support that is pivoted, and this support is to be fixedly arranged on described body frame through placing a latch.

5. sit-ups trainer according to claim 1, the extension that it is characterized in that described back of the body frame is provided with a magnet, and to should magnet, described body frame be provided with a Magnetic Induction device, this Magnetic Induction device is electrically connected at a display, and this display is provided with described body frame.