CN2256331Y

CN2256331Y - Doing sit-ups structure

Info

Publication number: CN2256331Y
Application number: CN 96209094
Authority: CN
Inventors: 何松昭
Original assignee: 何松昭
Current assignee: Tristar Products Inc
Priority date: 1996-04-26
Filing date: 1996-04-26
Publication date: 1997-06-18
Anticipated expiration: 2006-04-26

Abstract

The utility model relates to a sit-up exercise machine, particularly an abdomen, leg, and waist body builder. The utility model is mainly that a cushion body on a fixing frame is provided with a pivoting frame upwards from the end point, the upper end of the pivoting frame is pivoted with a swing rod having a foot hooking idler wheel, and the bottom part of the swing rod is provided with a rotary wheel which is abutted on an extension rod which is extended from a free cushion; thus, a user can not be injured by overexertion.

Description

Novel sit-ups structure

The utility model relates to a kind of sit-up movement apparatus, does not have the fitness equipment that it refers to indoor belly, leg and waist.

As everyone knows, the sit-ups structure be except that being engaged in the sit-ups, more can in order to stretch as the shank song, the auxiliary implement of every motion such as waist exercise, be widely used.

At present, the sit-ups structure of commonly using, as Fig. 5, shown in 6, it mainly is the same end that a cushion 34 and a back cushion 32 is hubbed on simultaneously a fixed mount 36, wherein back cushion 32 is provided with a handle rack 322 that slightly is the U font, being available for users to hand grips, free end at cushion 34 then extends the Extension support 342 that is provided with an inverted U, be provided with an extension rod 344 at the top of Extension support 342 horizontal-extending, proximal end at this extension rod 344 is pivoted 37, the other end of this hinged arm 37 then articulates on the appropriate location of a swing arm 38, be provided with one vertically upward at the proximal end of fixed mount 36 in addition and pass the vertical rod 362 of Extension support 342 central space, the end of vertical rod 362 then is hubbed on an end of swing arm 38, so just, can utilize and rotate swing arm 38, cooperate the pivot joint transmission of vertical rod 362 and hinged arm 37, allow the cushion 34 serve as that axle rotates and to lift with its articulated section, and two groups of rollers 382 at a distance of suitable distance are set at the other end of swing arm 38, the foot that is available for users to stretches through and colludes and is inserted in 382 of two groups of rollers, so as to rotating swing arm 38.

In addition, as shown in Figure 7, when user's desire is used sit-ups frame 30, then can be sitting on the cushion 34, and lean against, with the two ends of both hands while holds handle 322 at back cushion 32, and foot stretched 382 of two groups of rollers of people, and catch on the roller 382 of top, and so just the lower part of the body can be fixed, use waist power that the lower part of the body is straightened again, and lift with 32 rotations of both hands drive back cushion simultaneously, implement sit-ups, to temper waist power, perhaps will be fixing above the waist, utilize shank and foot to collude to pull the strength of roller 382, rotate swing arm 38, by the pivot joint transmission of vertical rod 362 and hinged arm 37, making cushion 34 serves as that the axle rotation is lifted with its articulated section, so can utilize the mode of lifting cushion 34 and user's lower part of the body with shank and foot strength, reach the effect of tempering leg strength, even can temper waist power simultaneously, reach the effect of multiple motion.

Yet, the sit-ups frame 30 that this is commonly used, implementing leg exercise, the strength of shank and foot is being rotated swing arm 38, and draw and lift cushion 34 and user's half body because of swing arm 38 with vertical rod 362 and hinged arm 37 to having two pivoting points, and at hinged arm 37 and extension rod 344 to having a pivoting point, so desire is rotated swing arm 38, and when lifting cushion 34 and user itself, need to reach the action of lifting by the transmission of above-mentioned three pivoting points, the strength that user like this rotates swing arm 38 needs quite big, the side must make cushion 34 lift, and as there not being the training through after a while, common people often can't rotate swing arm 38, and cushion 34 and itself are lifted, so that lost the effect of motion exercise, if the user rotates swing arm 38 by force, then easily because of warm-up deficiency or Overexertion, and athletic injury such as pull, cause the opposite effect.

In view of this, main purpose of the present utility model is the swing span that is pivoted on the fixed mount of cushion free end bottom, this swing span extends upward a swing arm with two rollers is set, again at the free end of the swing span runner that is resisted against the extension rod root edge that is pivoted, when swing arm rotates, roll and lift through the extension rod root edge, human body lifts and reaches movement effects, and laborsaving.

The purpose of this utility model is such: a kind of novel sit-ups structure, comprise on the fixed mount the pivot frame and on back cushion, cushion and handle, cushion free end on fixed mount upwards is provided with the frame that is pivoted, this be pivoted frame upper end then with have the swing arm that foot colludes detent roller and articulate, and be provided with a runner in swing arm bottom, on this runner then against having by the extended extension rod of cushion; Be pivoted frame or swing arm of the swing of above-mentioned extension rod limits.

Owing to adopt such scheme: can be not injured because of overexertion.

The schematic appearance of Fig. 1 the utility model exemplary embodiments.

Fig. 2 the utility model exemplary embodiments partial structurtes decomposing schematic representation.

The structural representation of Fig. 3 the utility model exemplary embodiments.

Fig. 4 the utility model exemplary embodiments user mode schematic diagram.

Fig. 5 commonly uses the schematic appearance of sit-ups frame.

Fig. 6 commonly uses the structural representation of sit-ups frame.

Fig. 7 commonly uses the user mode schematic diagram of sit-ups frame.

Among the figure: 10, sit-ups frame; 12, back cushion; 14, cushion; 142, extension rod; 16, handle; 18, fixed mount; 182, pivot frame; 184, the frame that is pivoted; 186, perforation; 188, pivot; 189, nut; 20, swing span; 22, frame plate; 222, perforation; 224, pivot hole; 24, pivoted arm; 242, roller; 26, runner; 28, hinged arm; 282, nut; 30, sit-ups frame; 32, back cushion; 322, handle; 34, cushion; 342, Extension support; 344, Extension support; 36, fixed mount; 362, vertical rod; 37, hinged arm; 38, swing arm; 382, roller.

As shown in Figure 1, 2, the end that the sit-ups frame 10 of present embodiment ties up to a fixed mount 18 is provided with a pivot frame 182, a back cushion 12 and cushion 14 then are pivoted respectively at the two ends of pivot frame 182, and the appropriate location of back cushion 12 is provided with leader 16, grip for user's hand, all belong to located by prior art, repeat no more; In addition at an end of fixed mount 18 pivot framves 182, be provided with two vertically upward at a distance of suitable distance, and wear perforation 186 the frame 184 that is pivoted relatively, free end extension at cushion 14 is provided with a slightly downward-sloping extension rod 142 again, wherein extension rod 142 is to pass two be pivoted 184 on framves, be provided with a swing span 20 that slightly is door type at two 184 on the framves that are pivoted in addition, wherein two frame plates, the 22 central appropriate locations of swing span 20 form one and become the folding part, and each wears some perforation 222 relatively to become the nearly swing span of folding part one side 20 bottoms at two frame plates 22, can a pivot 188 pass the two one group of relative perforation 222 on 184 perforation that wear relatively 186 of frame and swing span 20 frame plates 22 that are pivoted, screw togather with pivot 188 with a nut 189 again, so that swing span 20 is hubbed on two be pivoted 184 on framves, extension rod 142 also passes 22 of two frame plates of swing span 20 again.

Frame plate 22 is near from wearing a pivot hole 224 relatively from inner place again at swing span 20 in addition, in two pivot holes 224, can wear a hinged arm 28, and can utilize hinged arm 28 to place the runner 26 that a periphery forms arcuation depression 22 of two frame plates, and runner 26 is hubbed on 22 of two frame plates and this runner 26 is the bottom that is resisted against extension rod 142, and the root edge of extensible pole 142 rolls, swing span 20 extends vertically upward and is provided with a swing arm 24 again, and the central appropriate location of this swing arm 24 is formed with two bendings; And be provided with two groups at the proximal end of swing arm 24 and insert, and collude and pull on one group of roller 242 at a distance of suitable 242 foots that are available for users to of 242, two groups of rollers of roller of distance.

As Fig. 3, shown in 4, when user's desire is used sit-ups frame 10, can be sitting on the cushion 14, lean against on back cushion 12, the two ends of both hands holds handle 16, foot is stretched 242 of two groups of rollers of people, and catch on one group and take turns 242, this moment, the user can utilize waist power to do sit-ups, with hand-held handle 16 back cushion 12 is lifted, or utilize shank and foot, even the strength of waist, utilize foot to catch on roller 242 and rotate swing arm 24 and swing span 20, runner 26 extension rods 142 root edges that are pivoted on swing span 20 frame plates 22 are rolled, and utilize swing span, 20 rotate that arc is upwards established and the pushing and pressing of runner 26, draw, lift cushion 14 and user itself, with training shank and foot even waist.

The user is when training shank and foot, because only having with of frame 184 of being pivoted, swing arm 24 and swing span 20 be pivoted a little, so, the user is utilizing shank and foot to rotate swing arm 24, swing span 20, when lifting cushion 14 and user itself, can not be subjected to pining down of other members, can rotate swing arm 24 than the labour-saving mode, and cushion 14 is lifted, allow the user more can be because of warm-up deficiency or overexertion, and the generation athletic injury can allow the user reach the effect of motion exercise really.

This example mainly is that a swing span 20 and swing arm 24 are hubbed on the fixed mount 18 free-ended framves 184 that are pivoted, and be pivoted at the nearly free end of 20 liang of frame plates 22 of swing span and one can prolong the runner 26 that cushion 14 extension rods 142 root edges roll, so the user is when utilizing sit-ups frame 10 to implement the training of shank, foot, only by the transmission of a pivoting point and rotate 26 rolling pushing and pressing, just rotatable swing arm 24 lifts cushion 14 and user itself, than the labour-saving mode, allow the user reach the effect of motion really, and prevent the generation of athletic injury.

Claims

1, a kind of novel sit-ups structure, comprise on the fixed mount the pivot frame and on back cushion, cushion and handle, it is characterized in that: the cushion free end on fixed mount upwards is provided with the frame that is pivoted, this be pivoted frame upper end then with have the swing arm that foot colludes detent roller and articulate, and be provided with a runner in swing arm bottom, on this runner then against having by the extended extension rod of cushion.

2, by the described novel sit-ups structure of claim 1, it is characterized in that: be pivoted frame or swing arm of the swing of above-mentioned extension rod limits.