CN102139147A - Arm exerciser - Google Patents
Arm exerciser Download PDFInfo
- Publication number
- CN102139147A CN102139147A CN2011100347051A CN201110034705A CN102139147A CN 102139147 A CN102139147 A CN 102139147A CN 2011100347051 A CN2011100347051 A CN 2011100347051A CN 201110034705 A CN201110034705 A CN 201110034705A CN 102139147 A CN102139147 A CN 102139147A
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- China
- Prior art keywords
- section
- rack
- arm
- hook
- chest
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
- A63B21/023—Wound springs
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/00058—Mechanical means for varying the resistance
- A63B21/00069—Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/40—Interfaces with the user related to strength training; Details thereof
- A63B21/4041—Interfaces with the user related to strength training; Details thereof characterised by the movements of the interface
- A63B21/4047—Pivoting movement
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Tools (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
An arm exerciser of the invention comprises: a head part which comprises a hollow cylinder with a through hole formed at the bottom and arm connecting parts disposed at two side surfaces of the hollow cylinder; a pair of arms pivotally connected with the arm connecting parts respectively; a pair of connecting rods extending downwards and slantways with one end connected with each arm; a helical spring disposed in the hollow cylinder in a superior-inferior direction; a pole which has an upper end connected with a pressure sheet that supports the upper end of the helical spring, runs through the helical spring, extends downwards through the through hole, and has a rack part with a fastening part disposed at the lower part; and a spring adjusting device which comprises a sleeve disposed at a distance from the lower part of the head part, wherein the other end of each connecting rod is pivotally connected with the two side surfaces of the sleeve, and a through hole which can be inserted movably by the rack part is disposed inside the sleeve; a pressing part which is disposed on the sleeve, protrudes to the outside, and can be operated by users; and a hook which has an engaging part and can be engaged with or separated from the fastening part of the rack part by the operation of the pressing part.
Description
Technical field
The present invention relates to a kind of sports equipment that is used to temper the muscle strength of hand, arm, shoulder and uses, particularly a kind of chest-developer.
Background technology
Chest-developer is a kind of sports equipment, usually, the user exerts oneself after with the hands holding left and right arms respectively, arm is moved to the folding position that is equivalent to approximated position, if remove the power that applies, then arm turns back to the original motion starting position that arm separates because of being located at the elastic force of the spring on the chest-developer, utilizes such muscle strength that makes arm action repeatedly enhancing arm and shoulder.Chest-developer can be made small-sized, makes one hand to hold, and in this case, chest-developer can also can be used as the sports equipment that improves grip and use.
In the past chest-developer uses draft helical spring as the afterburning parts that improve muscle strength, is used for making a pair of arm so that approaching mode moves mutually the user the moving of blocking extension.That is, arm mutually near the time, draft helical spring elongation also provides elastic force.
But under the situation of using draft helical spring, stress concentrates on terminal ring portion, has the described ring portion problem of fracture easily, can cause being discontented with of consumer.
In order to solve described problem, a kind of chest-developer of following manner is disclosed, that is: connect the helical spring compressed action that makes the mutual approaching action of arm and be located on the head by connecting rod and be coupled.
On the other hand, demonstrate maximum efficient, the elastic force of the intensity that is equivalent to user's arm strength must be provided in order to make the motion that utilizes chest-developer.Promptly, when motion starting position from the origin-location of the arm that do not produce elastic force as spring, when move the folding position of the immediate position that moves to as arm, when the intensity of the elastic force that provides in the folding position is only state for sporter's arm power moving, demonstrate best movement effects.Under the very strong situation of tensile strength, can apply undue load to muscle, under the very weak situation of tensile strength, can not get movement effects.
But,, make and can regulate elastic force according to the intensity that the user requires because each user's arm strength intensity difference is regulated parts so require chest-developer will possess elastic force.
Summary of the invention
In order to solve described problem, the purpose of this invention is to provide a kind of chest-developer with structure of the tensile strength that can easily regulate chest-developer.
In addition, another object of the present invention provides a kind of chest-developer that can take care of under the state that holding arms folds fully simply when keeping.
In order to reach described purpose, chest-developer of the present invention comprises: head, and this head comprises: the hollow shape cylindrical shell is formed with through hole in the bottom surface; And the arm connecting portion, form in two sides of described hollow shape cylindrical shell; A pair of arm, pivotally connected with described arm connecting portion respectively; Pair of links prolongs to downside obliquely, and an end of each connecting rod is connected with each arm; Helical spring is arranged in the described hollow shape cylindrical shell along the vertical direction; Bar connects described helical spring, prolongs to downside through described through hole, is provided with the section of rack that is formed with fastener in the bottom, and the upper end of this bar is connected with the compressing tablet that adds of the described helical spring of supporting upper end; And the elastic force adjusting portion, comprising: cover, separate configuration with the downside of described head, be provided with the through hole that described section of rack can insert movably in inside, the other end of described each connecting rod is pivotally connected on two sides of this cover; The press section is installed in described putting, and exposes to the outside, and the user can operate this press section; And hook, have the holding section, by described press section is operated, described holding section can engage with the described fastener of described section of rack or separate.
According to embodiments of the invention, the described fastener of described section of rack is made of the oblique tooth bar profile of tooth of the downward inclination of the groove that forms profile of tooth (ラ Star Network Dentistry shape), the described holding section of described hook has the corresponding profile of tooth with described tooth bar profile of tooth engaging, under described fastener and state that described holding section profile of tooth is connected, to described section of rack effect during to power that downside is pushed, this power is transmitted, when described hook makes progress the power of layback to described section of rack effect, slide along the profile of tooth of described fastener in the described holding section of described hook.
According to embodiments of the invention, the central part of described hook rotates to be connected freely and is provided with in the spatial portion, this is provided with the space in the described cover internal configurations of the described elastic force adjusting portion side at described through hole, the upper end of described hook extends to the outside of described cover, form described press section, the lower end of described hook engages to the described fastener prolongation of described section of rack and with described fastener, described hook is provided with spring, so that under the state of described press section not being pushed, the state that keeps described holding section to engage with the described fastener of described section of rack.
According to embodiments of the invention, the described face that is hooked in the front side of described elastic force adjusting portion is provided with one.
According to embodiments of the invention, the surface of described section of rack is provided with display part, this display part is made of numeral, literal or the mark of the tensile strength that can represent chest-developer, by making the state of described display part that shows at described section of rack, can grasp the tensile strength after chest-developer is regulated for exposing in the outside of described cover.
According to the present invention, can provide a kind of chest-developer with structure of the tensile strength that can easily regulate chest-developer.According to the present invention, by pushing the press section of elastic force adjusting portion, the position of regulating arm changes the motion starting position of arm, pushes the press section by releasing, fixes the motion starting position of arm.When changing the motion starting position, owing to be that helical spring power does not act on the no load condition on the arm, so can easily regulate, because the arm about utilizing connecting rod to interconnect, so the arm about can making by the action that an arm is moved moves together, can easily carry out position adjustments thus.
In addition, under the situation that the distance between the arm that will make the starting position that is equivalent to move broadens, by holding the action that arm is expanded, with very little power just can regulating arm the motion starting position.
In addition, the present invention can take care of under the state that holding arms folds fully simply when keeping, and under the keeping state that arm folds fully, easily holding arms is altered to the motion starting position.
Description of drawings
Fig. 1 is the stereogram of the chest-developer of the embodiment of the invention one.
Fig. 2 is the cutaway view of the chest-developer of the embodiment of the invention one.
Fig. 3 is the amplification view at the A position of Fig. 2.
Fig. 4 is illustrated in the chest-developer of the embodiment of the invention one, possesses the mode of the display part that can grasp tensile strength.
Fig. 5 is the chest-developer that is used for being illustrated in the embodiment of the invention one, the figure of the process of the motion starting position of regulating arm.
Fig. 6 is the chest-developer that is used for being illustrated in the embodiment of the invention one, the figure of the process of the motion starting position of regulating arm.
Fig. 7 is illustrated in the chest-developer of the embodiment of the invention one, and the position of arm is altered to the figure of folding position, the position of arm during the expression keeping.
Fig. 8 is the front view and the cutaway view of the chest-developer of other embodiments of the invention.
Description of reference numerals
10 heads
11 hollow shape cylindrical shells
14 arm connecting portions
20 arms
30 helical springs
40 bars
50 connecting rods
60 elastic force adjusting portions
65 section of rack
70 hooks
The specific embodiment
With reference to the accompanying drawings embodiments of the invention are elaborated.
Fig. 1 is the stereogram of the chest-developer of the embodiment of the invention one, and Fig. 2 is the cutaway view of the chest-developer of the embodiment of the invention one, and Fig. 3 is the amplification view at the A position of Fig. 2.
As shown in the figure, chest-developer of the present invention comprises head 10, a pair of arm 20, helical spring 30, bar 40, pair of links 50 and elastic force adjusting portion 60.
According to the present invention, the hollow shape cylindrical shell 11 that on the central part of head 10 is formed with, opens wide.On the bottom surface 13 of hollow shape cylindrical shell 11, be formed with the through hole 12 that bar 40 passes through.In addition, in order to guide moving of bar 40 by through hole 12, bar guide 15 can be set, this bar guide 15 is formed with the hole that is communicated with through hole 12.The upper end of this external hollow shape cylindrical shell 11 can be provided with cover piece (not expression among the figure).Hollow shape cylindrical shell 11 is formed with the spring that spring is set the space is set in inside, as the back is narrated, helical spring 30 is set, and this helical spring 30 compresses and restoring action.
On two sides of head 10, be formed with arm connecting portion 14, this arm connecting portion 14 with about the upper end of arm 20 pivotally connected.About the upper end of arm 20 pivotally connected respectively about arm connecting portion 14 on, arm 20 can with arm connecting portion 14 be center of rotation to clockwise direction with counterclockwise rotate, between motion starting position and folding position, move back and forth.
To narrate in the back, according to the present invention, motion starting position that can regulating arm, the power that is provided by chest-developer is the elastic force that is produced by helical spring 30 when move the folding position from the motion starting position at arm, motion starting position at arm, distance between the arm is far away more, and just the angle between the arm is big more, and the tensile strength that provides during arm power moving is big more.The present invention can regulate the distance between the arm of the starting position that is equivalent to move in chest-developer, can carry out the adjusting of tensile strength.
According to the present invention, in hollow shape cylindrical shell 11, be provided with helical spring 30.The lower end of helical spring 30 is by bottom surface 13 supportings of hollow shape cylindrical shell 11, and the upper end is by adding compressing tablet 45 supportings.Add compressing tablet 45 and be connected on the bar 40, if barre 40 downward laybacks are then exerted pressure downwards to helical spring 30 and made helical spring 30 compression.
According to embodiments of the invention, additional helical spring can be set in the inboard of helical spring 30.Therefore, the present invention can not increase the size of helical spring 30 and the size of hollow shape cylindrical shell 11, by additional helical spring being arranged on the inboard of helical spring 30, can increase the elastic force that can be provided by chest-developer.
Embodiments of the invention comprise bar 40.The upper end of bar 40 with add compressing tablet 45 and be connected, bar 40 prolongs to downside by the center of helical spring 30, and prolongs to downside by the through hole 12 that forms on the bottom surface 13 of hollow shape cylindrical shell 11.The bottom of bar 40 extends to the inboard of the through hole 62 that inserts elastic force adjusting portion 60, and the bottom of bar 40 is formed with section of rack 65, and this section of rack 65 is connected in moving mode with elastic force adjusting portion 60.Can constitute bar 40 by a member that comprises section of rack 65, in addition, also can form bar 40 and section of rack 65 respectively, again with mode connecting rod 40 and section of rack 65 that can a body action.But, the invention is not restricted to described embodiment.
According to embodiments of the invention, between arm 20 and elastic force adjusting portion 60, be provided with connecting rod 50.One end of connecting rod 50 is pivotally connected at the downside and the arm 20 of arm connecting portion 14, tiltedly prolongs towards the 60 downward inclinations of elastic force adjusting portion, and the cover 61 of the other end and elastic force adjusting portion 60 is pivotally connected.Therefore, arm 20 be delivered to elastic force adjusting portion 60 near moving through connecting rod 50, with the downward mobile coupling of elastic force adjusting portion 60.
According to embodiments of the invention, elastic force adjusting portion 60 is included in the cover 61 that forms through hole 62 on the above-below direction.According to embodiments of the invention, utilize the cover of connection front-back such as hold-down screw to constitute cover 61.
As previously mentioned, bar 40 can be inserted in the through hole 62 of elastic force adjusting portion 60 movably, and the bottom that is inserted into the bar 40 in the through hole 62 is formed with section of rack 65.
On the surface of section of rack 65, be formed with fastener 66.Preferably, fastener 66 is made of the toothed region with a plurality of tooth bar profiles of tooth 67.The holding section 72 of hook 70 is provided with the corresponding profile of tooth 73 that fastens with described tooth bar profile of tooth 67, and fastener 66 is connected with holding section 72 profiles of tooth.
Form tooth bar profile of tooth 67 so that form the downward-sloping mode of groove of profile of tooth, when hook 70 is connected with section of rack 65 profiles of tooth, when the power of effect handlebar section of rack 65 downward side pressures, this power is transmitted, section of rack 65 downward side shiftings, but when effect has the power that hook 70 upwards draws section of rack 65, if effect has above the power more than the prescribed level, then the profile of tooth of the holding section 72 edge fasteners 66 of hook 70 is slided, and edge fastener 66 is side shifting upwards.That is, the power of 70 pairs of section of rack of hook, 65 downward side pressures is transmitted by former state, section of rack 65 downward side shiftings, but for the power that hook 70 draws section of rack 65, produce and slide, section of rack 65 does not move, and hook 70 is moved upward.
According to embodiments of the invention, elastic force adjusting portion 60 comprises the hook 70 that engages with section of rack 65.On two sides of through hole 62 of cover 61 inboards, be formed be used to be provided with hook 70 spatial portion 63 is set, in spatial portion 63 is set, be formed with hook axle 64.The axis hole 71 of hook 70 by forming at central part is arranged on the described hook axle 64.In Fig. 1～Fig. 3, expression is provided with the mode of a pair of hook 70 in mutual relative mode, but as shown in Figure 8, also can be the distortion example that a hook 70 is set, and the present invention is not subjected to the restriction of hook number.
With reference to Fig. 1～Fig. 3, hook 70 is arranged on two sides of through hole 62, each hook 70 has axis hole 71, this axis hole 71 forms at central part, this axis hole 71 is used for hook axle 64, be provided with holding section 72 in the lower end of hook 70, holding section 72 and the fastener 66 that forms in the side of described section of rack 65 fasten, and can transmit power to the direction of compression helical spring 30.As previously mentioned, preferably, described holding section 72 has corresponding profile of tooth 73, and this correspondence profile of tooth 73 engages with the tooth bar profile of tooth 67 that forms on the fastener 66 of section of rack 65.
The upper end of hook 70 is configured to stretch out laterally on the side surface direction of cover 61, and the upper end of hook 70 forms press section 75.
According to embodiments of the invention, hook 70 is by spring 77 elastic bearings, makes the state that the fastener 66 of the holding section 72 that keeps hook 70 and section of rack 65 fastens.Therefore, under the state that is not pressed in press section 75, the states that the fastener 66 that keeps section of rack 65 and the holding section 72 of hook engages mutually, by pushing press section 75, hook 70 is the center rotation with hook axle 64, is disengaged thereby engage.
One end of spring 77 is fixed on described the setting in the spatial portion 63, the other end is fixed on the hook 70, under the state that is not pressed in the press section 75 of hook 70, provide elastic force, make the state that the fastener 66 of the holding section 72 that keeps hook 70 lower ends and section of rack 65 fastens.
The user holds arm 20, arm 20 is applied make its from the motion starting position towards the folding position, under the situation of the power of mutually approaching direction, transmit motion from connecting rod 50, elastic force adjusting portion 60 downward side shiftings, cover 61 by connecting rod 50 and elastic force adjusting portion 60 be connected the power that passes to cover 61, be delivered to the hook 70 that is fixed on the hook axle 64, by the holding section 72 of hook 70 and fastener 66 engagings of section of rack 65, power is passed to section of rack 65, thus, section of rack 65 downward side shiftings.If bar 40 is pulled down with section of rack 65, then add compressing tablet 45 and make spring 30 compressions by pressing spring 30, produce elastic force thus.
On the other hand, be arranged on the embodiment of a hook 70 on the face of front side of elastic force adjusting portion 60 with reference to Fig. 8, be formed with fastener 66 on the face of the front side of section of rack 65, hook 70 is arranged at being provided with in the spatial portion 63 of forming on the face of cover 61 front sides.Identical with embodiments of the invention one, hook 70 rotates freely and is connected with the hook axle 64 that forms on cover 61, the fastener 66 that the lower end of hook 70 forms on the face in the front side of section of rack 65 prolongs, form the holding section 72 that engages with the fastener 66 of section of rack 65, the upper end of hook 70 prolongs, and is formed with the press section 75 that can carry out pressing operation in the outside of cover 61.As previously mentioned, fastener 66 is connected with holding section 72 profiles of tooth.From the right side cross-sectional view of Fig. 8 as can be seen, under the situation that press section 75 is pushed, hook 70 limits are that rotate at the center with hook axle 64, and engagement release portion 72 in limit engages with fastener 66.Embodiment shown in Figure 8 only be hook 70 the position is set and that number is set is different, identical with operating principle and the basic structure of the embodiment of Fig. 1～shown in Figure 3.
In the embodiment of Fig. 1～shown in Figure 3, in two sides of elastic force adjusting portion 60 hook 70 is set respectively, for engaging of the fastener 66 of the holding section 72 that will remove hook 70 and section of rack 65, must push the hook 70 of both sides simultaneously.But under the situation of embodiment shown in Figure 8,,, has the easier advantage of operation so it is just passable to push a hook 70 when operation elastic force adjusting portion 60 because a hook 70 is set.
Fig. 5 and Fig. 6 are the chest-developers that is used for being illustrated in the embodiment of the invention one, the press section of elastic force adjusting portion are operated the figure of the process of the motion starting position of regulating arm.
Under state shown in Figure 5, in the time the position of arm will being changed to distance between the arm 20 from motion starting position shown in Figure 5 and is adjusted to than the more close motion starting position shown in Figure 6 of Fig. 5, the press section 75 that need press pressure hook 70, the fastening state of releasing hook 70 and section of rack 65.
This is described in more detail, under the situation of the motion starting position of wanting regulating arm under the state of Fig. 5, press the press section 75 of pressure hook 70,, elastic force adjusting portion 60 is moved freely with respect to section of rack 65 by removing the fixing of 70 pairs of section of rack 65 of hook.If press section 75 is pushed, then hook 70 is that rotate at the center with hook axle 64, makes the engaging of fastener 66 of holding section 72 and section of rack 65 remove.Under the state of having pushed press section 75, arm is moved to mutual approaching direction, motion starting position that can holding arms is adjusted to state shown in Figure 6.Owing to removed binding force, so the position of regulating arm 20 easily to arm 20.After the motion starting position of holding arms 20 is adjusted to state shown in Figure 6, remove the pushing of press section 75, fastener 66 and holding section 72 be engaging mutually on the position after the adjusting, and the motion starting position of holding arms 20 is fixed on the position after the adjusting.
On the other hand, in the motion starting position that will make arm under the open situation in original position, for example to be altered to from position shown in Figure 6 under the situation of position shown in Figure 5, as previously mentioned, press section 75 is pushed, remove the engaging of hook 70 and section of rack 65, the distance between the arm is broadened.
But, according to embodiments of the invention, because the holding section 72 of the fastener 66 of section of rack 65 and hook 70 is by the engaging of tooth bar profile of tooth, so the distance between the arm is broadened.According to embodiments of the invention, profile of tooth forms: under fastener 66 and state that holding section 72 profiles of tooth are connected, to section of rack 65 effect during to power that downside is pushed, power is transmitted, section of rack 65 downward side shiftings, but when 70 pairs of section of rack of hook 65 acted on the power of the layback that makes progress, the profile of tooth of the holding section 72 edge fasteners 66 of hook 70 was slided, and edge fastener 66 is side shifting upwards.
Therefore, the user is in order to broaden the distance between the arm of the starting position that is equivalent to move, if the distance between the increase arm, even then do not push press section 75, as long as effect has above the power more than the prescribed level, just move on the tooth bar profile of tooth 67 of the fastener 66 of section of rack 65 holding section 72, and just holding section 72 produces slips, and the clamped position of holding section 72 and fastener 66 is side shifting upwards easily also, and the motion starting position of arm 20 is broadened.
According to embodiments of the invention, owing to can regulate the distance between the arm 20 of the starting position that is equivalent to move by the clamped position of fastener 66 and holding section 72, so as shown in Figure 7, when the keeping chest-developer, because can be making arm become keeping under the folding fully state, so can easily take care of and transport.
In addition, in that being become under the fully folding state, arm to widen into the motion starting position under the situation of the state that can move, as long as apply the power of the open regulation of holding arms, holding section 72 just can edge section of rack 65 fastener 66 slide, the limit easily moves to the motion starting position that can move, therefore the state that can easily become can move from the keeping state transformation.
The user is by holding arm 20, apply power in the motion starting position, make arm 20 move to the folding position and carry out the chest-developer motion, the distance between the arm of motion starting position is far away more, just increase the angle between the arm more, it is just big more to make arm move to the needed power in folding position.Therefore the distance between the regulating arm 20 has just been regulated the tensile strength of chest-developer.Therefore, the user can be adjusted to the tensile strength of chest-developer and the muscle strength of oneself adapts, and moves then.
Fig. 4 is illustrated in the chest-developer of the embodiment of the invention, and the mode of the display part of the tensile strength that can grasp chest-developer is set.
With reference to drawing, the forward surface of section of rack 65 is provided with display part 80, and numeral, literal or the mark of the tensile strength state after this display part 80 is represented to regulate by segmentation constitute.Owing to change the length change that the motion starting position can make section of rack 65 insert the cover 61 of elastic force adjusting portion 60, also change so display part 80 is exposed at the length of the part of cover 61 upper outside.According to embodiment shown in Figure 4, display part 80 shows numeral 6 to 1 to downside with inverted sequence from upside, and each numeral shows the relative tensile strength that chest-developer provides.
The distance that is equivalent to move between the arm 20 of starting position is far away more, that is to say that the angle between the arm 20 is big more, and holding arms moves to the needed power in folding position from the motion starting position just big more, that is to say that tensile strength increases.Because by connecting rod 50 and utilize elastic force adjusting portion 60 linking arms 20, so the motion starting position of arm 20 is associated with the length of the bar 40 of insertion elastic force adjusting portion 60.The distance that is equivalent to move between the arm 20 of starting position is far away more, and the position of the cover 61 of elastic force adjusting portion 60 side shifting that makes progress makes the downward side shifting of clamped position of hook 70 and section of rack 65 thus, and the insertion length of bar 40 and section of rack 65 just increases.Therefore, show under the situation of the numeral of representing tensile strength the tensile strength after can confirming to regulate according to the numeral of exposing on the surface of section of rack 65.Therefore, the user wants under the situation of setting in motion between arm 20 is with folding state maintaining period, and position adjustments that can be by display part 80 holding arms is to the distance of the motion starting position that is equivalent to provide desirable tensile strength.
As previously mentioned, according to embodiments of the invention, the present invention utilizes elastic force adjusting portion 60 easily the motion starting position of regulating arm and the tensile strength that is associated therewith, can move to keeping under the state of folding position at holding arms 20 when keeping, is easy to carry and takes care of.
Claims (5)
1. chest-developer is characterized in that comprising:
Head, this head comprises: the hollow shape cylindrical shell is formed with through hole in the bottom surface; And the arm connecting portion, form in two sides of described hollow shape cylindrical shell;
A pair of arm, pivotally connected with described arm connecting portion respectively;
Pair of links prolongs to downside obliquely, and an end of each connecting rod is connected with each arm;
Helical spring is arranged in the described hollow shape cylindrical shell along the vertical direction;
Bar connects described helical spring, prolongs to downside through described through hole, is provided with the section of rack that is formed with fastener in the bottom, and the upper end of this bar is connected with the compressing tablet that adds of the described helical spring of supporting upper end; And
The elastic force adjusting portion comprises: cover, separate configuration with the downside of described head, and be provided with the through hole that described section of rack can insert movably in inside, the other end of described each connecting rod is pivotally connected on two sides of this cover; The press section is installed in described putting, and exposes to the outside, and the user can operate this press section; And hook, have the holding section, by described press section is operated, described holding section can engage with the described fastener of described section of rack or separate.
2. chest-developer according to claim 1 is characterized in that,
The described fastener of described section of rack is made of the oblique tooth bar profile of tooth of the downward inclination of the groove that forms profile of tooth,
The described holding section of described hook has the corresponding profile of tooth with described tooth bar profile of tooth engaging,
Under described fastener and state that described holding section profile of tooth is connected, to described section of rack effect during to power that downside is pushed, this power is transmitted, and when described hook makes progress the power of layback to described section of rack effect, slide along the profile of tooth of described fastener in the described holding section of described hook.
3. chest-developer according to claim 1 and 2 is characterized in that,
The central part of described hook rotates to be connected freely and is provided with in the spatial portion, this is provided with the space in the described cover internal configurations of the described elastic force adjusting portion side at described through hole, the upper end of described hook extends to the outside of described cover, form described press section, the lower end of described hook engages to the described fastener prolongation of described section of rack and with described fastener
Described hook is provided with spring, so that under the state of described press section not being pushed, and the state that keeps described holding section to engage with the described fastener of described section of rack.
4. chest-developer according to claim 3 is characterized in that, the described face that is hooked in the front side of described elastic force adjusting portion is provided with one.
5. chest-developer according to claim 1 and 2 is characterized in that,
The surface of described section of rack is provided with display part, and this display part is made of numeral, literal or the mark of the tensile strength that can represent chest-developer,
By making the state of described display part that shows at described section of rack, can grasp the tensile strength after chest-developer is regulated for exposing in the outside of described cover.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0009575 | 2010-02-02 | ||
| KR1020100009575A KR101094584B1 (en) | 2010-02-02 | 2010-02-02 | Expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102139147A true CN102139147A (en) | 2011-08-03 |
Family
ID=44407081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100347051A Pending CN102139147A (en) | 2010-02-02 | 2011-01-31 | Arm exerciser |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2011156358A (en) |
| KR (1) | KR101094584B1 (en) |
| CN (1) | CN102139147A (en) |
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| CN107335187A (en) * | 2016-12-24 | 2017-11-10 | 重庆都英科技有限公司 | A kind of safety body-building chest-developer |
| CN107335188A (en) * | 2016-12-24 | 2017-11-10 | 重庆都英科技有限公司 | A kind of cam hydraulic energy consumption formula safe arm exerciser |
| CN114470613A (en) * | 2020-10-27 | 2022-05-13 | Gd Ind股份有限公司 | Arm strength exerciser |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101576738B1 (en) | 2014-06-11 | 2015-12-10 | 안태진 | Expander |
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| CN107335188A (en) * | 2016-12-24 | 2017-11-10 | 重庆都英科技有限公司 | A kind of cam hydraulic energy consumption formula safe arm exerciser |
| CN114470613A (en) * | 2020-10-27 | 2022-05-13 | Gd Ind股份有限公司 | Arm strength exerciser |
| US11771952B2 (en) | 2020-10-27 | 2023-10-03 | GD IND Corp. | Chest expander |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101094584B1 (en) | 2011-12-15 |
| JP2011156358A (en) | 2011-08-18 |
| KR20110090020A (en) | 2011-08-10 |
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