CN2655954Y - Two-sectional chest-developer - Google Patents

Abstract

The utility model discloses a two-portion typed pulling device, comprising an outer shell, an outer cover relatively locked with the outer shell, two resistant devices respectively equipped between the outer shell and the outer shell, a flexible handle, a pulling rope, a positioning unit and an adjusting unit. When an adjusting knot is rotated to make the high step portion of a ring connection block gradually detached with the lower step portion of an immobilizing piece, when going to one high step portion of the immobilizing piece, two high step portions hold against each other, which can promote the clamping connection block and a clamp connection portion of a first resistance device positioned, a second resistance device is cascaded to integration to get the pulling movement effect with a higher resistance force, when a knob is rotated anticlockwise, the high and the low step portion match with each other, which can get the pulling movement effect with a lower resistance force.

Description

The two-period form chest expander

Technical field

The utility model relates to a kind of chest expander, particularly relates to a kind of hop count of adjusting to increase momental two-period form chest expander.

Background technology

General sports equipment, for promoting arm, belly, waist, amounts of exercise such as shank, then be symmetrically installed with one group of chest expander at appropriate location, for example United States Patent (USP) the 5th, 509, No. 873, the 5th, 733, No. 231 and D390, No. 272 cases ... or the like, more than each case all be that a kind of confession is bound in waist, and both sides respectively are formed with a movable handle after making waist, when on the road surface, making road-work, hold a movable handle respectively, when the hand swing by both hands, handle with the hand interlock then can utilize stay cord to spur a volute spring, when hand draws forward, can reach the function of training arm strength, and hand backswing backward, volute spring meeting automatic drawing back, hand hunting frequency along with the people who moves spurs continuously, the motion of regaining can impel the amount of exercise that can increase hand in the running.

Though on take off chest expander and respectively have the elastic resistance of utilization and reach functions such as training arm strength, abdomen power, but, the elastic resistance of unistage type, when its arm strength of the people who runs into motion bigger, just can't bring into play its resistance of motion, result of use is probably unclear, and therefore, its movement effects that can provide of chest expander in the past is then quite limited.

The utility model content

The purpose of this utility model is to relate to a kind of hop count of adjusting to increase momental two-period form chest expander.

According to two-period form chest expander of the present utility model, include drag devices, a flexible handle, a stay cord, locating unit and an adjustment unit that a shell, a relative enclosing cover, two that locks with this shell are placed in this shell and this enclosing cover respectively.

This shell has a medium altitude chamber.

This enclosing cover has one and is positioned at the perforation of central authorities with the corresponding medium altitude chamber of room, of this shell, and the bore hollow tube portion that is slightly larger than this perforation and extends upward and communicate with its room from the basal wall outer peripheral edges, this pipe portion have number be uniformly-spaced and be formed at inwall directly to slideway.

These drag devices are to be placed in respectively in the room of this shell, this enclosing cover, can be separated from each other, and the combination of contacting via adjustment, and one first drag devices has one and is formed at outer peripheral face for the annular groove that twines a stay cord, and at least two Access Divisions that are based in end face.

These flexible handles are positioned at this housing exterior.

One end of this stay cord is fixed on this first drag devices, the other end this housing exterior that stretches through out, and being fixed on this flexible handle, and this drag devices is permanent stay cord to be pulled in the shell, makes flexible handle near shell.

This positioning unit is to be placed between two drag devices, having one is based in this body bottom surface with body, at least two that one second drag devices socket-connects and is corresponding at interval and is the mutual clamping block that docks after adjustment with this Access Division, and a flexible member that is placed between this first drag devices and this body, this body has one and extends upward and run through this second drag devices and stretch through into the central siphon of this pipe portion.

This adjustment unit comprises that one has the adjustment button of a medium altitude chamber, this adjustment button has an articulating piece that is based in the roof bottom surface, this articulating piece has a high-order portion and by slow low order portion of falling extension of this high-order portion, one matches with this articulating piece merges the brake be placed in this pipe portion, connecing that this brake and this articulating piece connect has a low order portion that matches with the high-order portion of this articulating piece on the face, one from the slow high-order portion of extending and matching with the high-order portion of this articulating piece that rises of low order portion, number uniformly-spaced and be formed at this brake outer peripheral face and with the sliding mutually protuberance of location that closes of the slideway of this pipe portion, an and central shaft, this central shaft has one and is positioned at the bottom for the stop section that is positioned at the shell bottom surface, one extends upward from this stop section and runs through this rotating disk, this flexible member, the body portion of this body and this brake, and one be positioned at the lockhole that this top is fixed by lock knot part and outer cover lock knot.

Adjust button when rotating this, make the high-order portion of this articulating piece break away from the low order portion of this brake gradually, and when entering the high-order portion of this brake, high-order facing each other portion connects, and pass downwards with this body of interlock by means of promoting this brake downwards gradually, compression elastic element, and the location, Access Division of impelling the clamping block of body and this first drag devices, two drag devices are then gone here and there the knot one, and are opposite, when derotation should be adjusted button, its portion such as high-order such as grade is broken away from gradually, and initial with arriving, it is contour, low order portion cooperatively interacts, and pine oil is to this brake, during the stopper pressure of flexible member, this clamping block just breaks away from the Access Division of this first drag devices.

Two-period form chest expander of the present utility model, when being adjusted at first section, be the elasticity lower resistance of utilizing the volute spring of this first drag devices, be the effect of the pulling force motion that is applicable to lower resistance, can train the motion effect of arm strength for the people of motions such as women or rehabilitation use.When being adjusted at two sections convolutions, utilize the elasticity high-drag of the volute spring addition of this first and second drag devices, just can increase the twofold motion amount of general chest expander, and obtain the effect of the pulling force motion of high-drag, the people that the motion that needs the big resistance of motion is provided is as motion effects such as training arm strength, abdomen power, leg strengths, and more can increase the lung capacity of motion by this chest expander, and reach the movement effects of general.

Description of drawings

Fig. 1 is a three-dimensional combination figure, and a preferred embodiment of the utility model two-period form chest expander is described.

Fig. 2 is a three-dimensional exploded view of this preferred embodiment.

Fig. 3 is a combination section of this preferred embodiment.

Fig. 4 is a combination section that is similar to Fig. 3, and the adjustment action of an adjustment unit is described.

Fig. 5 is a stereogram, illustrates that two chest expanders are installed in the user mode on the treadmill.

The specific embodiment

As shown in Figure 1 and Figure 2, a preferred embodiment of the utility model two-period form chest expander 100 is to comprise that a shell 1, utilizes the number bolt 9 and the enclosing cover 2, two of this shell 1 locking to be placed in drag devices, a flexible handle 5, a stay cord 6, locating unit 7 and an adjustment unit 8 of this shell 1 and this enclosing cover 2 respectively.

This shell 1 has a basal wall 11, a surrounding wall 13, that vertically extends and define a medium altitude chamber 12 from these basal wall 11 outer peripheral edges stretches out and the internal ring wall 15, that defines a space 14 is formed with a line outlet 16 that is positioned at stay cord 6 other ends on this surrounding wall 13 from these basal wall 11 outer peripheral edges, and a locating piece 17 that is placed in this line outlet 16 separatably.

As Fig. 2, shown in Figure 3, this enclosing cover 2 has a basal wall 21, a surrounding wall 23, that vertically extends and define a medium altitude chamber 22 from these basal wall 21 outer peripheral edges stretches out and the internal ring wall 25, that defines a space 24 is positioned at the perforation 26 of central authorities from these basal wall 21 outer circumferential sides, and the bore hollow tube portion 27 that is slightly larger than this perforation 26 and extends upward and communicate with room 24 from basal wall 21, this pipe portion 27 have several be uniformly-spaced and be formed at inwall directly to slideway 271.This enclosing cover 2 has more one around this pipe portion 27 and be formed at the shallow annular groove 28 at basal wall 21 tops, and the projection 29 of outstanding shallow annular groove 28 inwalls.

This drag devices comprises first drag devices 3, second drag devices 4 for the room 22 that is placed in this enclosing cover 2 for the room 12 that is placed in this shell 1.This first drag devices 3 has one for the rotating disk 31 that twines this stay cord 6, one is positioned at the axle center 32 of these rotating disk 31 central authorities, one around this axle center 32 and from the outward extending internal perisporium 34 of a diapire 33 outer peripheral edges and define a spatial accommodation 35 that is involutory with the space 14 of the internal ring wall 15 of this shell 1, one is placed in this space 14, the volute spring 36 of this spatial accommodation 35, one is formed at outer peripheral face is wound in wherein annular groove 37 for stay cord 6, one from these diapire 33 outer peripheral edges vertically extending top perisporium 38 that makes progress, reach the Access Division 39 that is formed at top perisporium 38 end faces ring of numbers week, it is fixing that this volute spring 36 is positioned at one inner 361 and this axle center 32 at center, is positioned at 362 outside of outer ends and is fixed on this internal ring wall 15.

This flexible handle 5 is positioned at this shell 1 outside.

These stay cord 6 one ends are fixed on the rotating disk 31 of this first drag devices 3, the other end this locating piece 17 that stretches through out, and be piercing in this shell 1 outside, and be fixed on this flexible handle 5, this first drag devices 3 is that perseverance pulls to stay cord 6 in the shell 1, makes flexible handle 5 near shells 1.

This second drag devices 4 has one and is positioned at central axle center 41, one internal perisporium 43 that extends up around this axle center 41 and from a diapire 42 also defines the volute spring 45 that a spatial accommodation 44, that is involutory with the space 24 of this enclosing cover 2 is placed in this space 24, this spatial accommodation 44, and one vertically extend and define the surrounding wall 47 of a medium altitude chamber 46 down from these diapire 42 outer peripheral edges, it is fixing that this volute spring 45 is positioned at one inner 451 and this axle center 41 at center, is positioned at 452 outside of outer ends and is fixed on this internal perisporium 43.

This positioning unit 7 is placed between two drag devices, have body 71, rings of numbers that are placed in the room 46 of second drag devices 4 and be located at these body 71 bottom surfaces and be clamping block 72 corresponding at interval and that after adjustment, can dock mutually with this Access Division 39, and a flexible member 73 that is placed in 71 of this first drag devices 3 and this bodies.

This adjustment unit 8 comprises that one has the adjustment button 81 of a medium altitude chamber, this adjustment button 81 have an articulating piece 82 that is based in the roof bottom surface, one and the brake 83, that connects of this articulating piece 82 be positioned at a thrust bearing 84 between these brake 83 bottoms and this body 71 tops and a central shaft 85.

These adjustment button 81 peripheries directly are slightly less than the ring Zhou Jing of the shallow annular groove 28 of this enclosing cover 2, this adjustment button 81 has the gap segments 811 of a formation diapire, these gap segments 811 proper cover caps are at projection 29 tops of this enclosing cover 2, and the height of gap segments 811 makes this adjustment button 81 be subject to the adjusting range of these gap segments 811 length a little more than the height of this gap segments 811.

This articulating piece 82 has two and cuts open half section 820, respectively be formed with a high-order portion 821 of reverse symmetry on two sections 820, reach one from these 821 slow low order portions 822 of falling extension of high-order portion, this brake 83 and this articulating ring 82 connect connects and has two on the face and cut open half section 830, respectively be formed with on two sections 830 and dock with this articulating piece 82 and a high-order portion 831 of reverse symmetry, and one from these 831 slow low order portions 832 of falling extension of high-order portion.And this brake 83 have more number be uniformly-spaced be formed at outer peripheral face and with the sliding mutually protuberance 833 of location that closes of the slideway 271 of this pipe portion 27.

This central shaft 85 has one and is positioned at the bottom extended upward and ran through this rotating disk 31, this flexible member 73, this body 71, this thrust bearing 84 and this brake 83 for the stop section 851 that is positioned at shell 1 bottom surface, from this stop section 851 body portion 852, and one is positioned at a top by a lock knot part 86 and the fixing lockhole 853 of enclosing cover 2 lock knots.

Extend upward the axle center 41 of running through this second drag devices 4 and stretch through and this body 71 has more one into the central siphon 74 of this pipe portion 27, this positioning unit 7 has more one for keeping out on this flexible member 73 tops and be subjected to spacing pads of this body 71 75, for the collar 76 of cover retaining in these flexible member 73 bottoms, and one is positioned at the C shape button 77 that these collar 76 bottoms and bolt are buckled in an annular groove 854 of this central shaft 85.

As Fig. 2, shown in Figure 3, in addition, this adjustment unit 81 more comprises a capping 87, and this capping 87 has a basal wall 871 and number and colludes pawl 872 from what this basal wall 871 peripheries extended downwards, and this adjustment button 81 have that number form is formed in roof collude hole 812, after this lock knot part 86 and these central shaft 85 lock knots are fixing, again these of this capping 87 are colluded pawl 872 correspondences stretch through and collude place this adjustment button 81 collude hole 812, cover the former outside lock knot part 86 that is exposed to by capping 87, make to have the aesthetic property that hides decorations.

Above-mentioned each device is after combination, and is whole then have the chest expander kenel of two sections adjustment.In original state, the position that this flexible handle 5 is stretched and approaches this shell 1 by this stay cord 6.When this flexible handle 5 is outwards stretched towards the position away from shell 1, at this moment this stay cord 6 is also pulled out synchronously, and the volute spring 36 of this first drag devices 3 of interlock is extended state, pulling rotating disk 31 is rotated, and operator's arm strength just obtain the effect of pulling force motion, more as shown in Figure 5, particularly this chest expander 100 is installed and be used on the treadmill 200, or on other sports equipments the time, movement effects is variation more, and movement effects is also more showing.

As Fig. 1, Fig. 2 and shown in Figure 4, when desire increases amount of exercise, only rotate this adjustment button 81, by a front end 813 of this gap segments 811 away from projection 29 and with its disengaging clip, commentaries on classics only blocks with this projection 29 mutually by one terminal 814, by this pipe portion 27 be limited in a fixed position because of this brake 83 this moment, utilize these high-order portions 821 to break away from the low order portion 832 of this brake 83 gradually with this articulating piece 82 of adjusting button 81 rotations, and enter the high-order portion 831 of this brake 83, high-order portion 821 in twos, 831 mutual butts, and pass downwards with this body 71 of interlock by means of promoting this brake 83 downwards gradually, compression elastic element 73, and 39 location, Access Division of impelling clamping block 72 with this first drag devices 3 of body 71, two drag devices are then gone here and there the knot one, at this moment, the largest motion resistance of this chest expander 100 then be this first, two drag devices 3, these volute springs 36 of 4,45 elastic resistance addition, therefore, when desire increases amount of exercise, only compounding practice is simply adjusted button 81 and is easily adjusted, just can obtain the pulling force motion of high-drag, and make movement effects better.

Opposite, when desire is replied the movement effects of single hop resistance, only derotation should be adjusted button 81, its portion such as high-order such as grade 821,831 is broken away from gradually, and get back to initially, make that it is contour, low order portion 821,832 (831,822) cooperatively interacts, and pine oil is during to the stopper pressure of this brake 83, flexible member 73, this clamping block 72 just breaks away from the Access Division 39 of this first drag devices 3, and can reach the pulling force movement effects of the lower resistance of unistage type.

In addition, via adjusting and go here and there this first and second drag devices of knot 3,4 o'clock, because of one thrust bearing 84 being installed in brake 83 bottoms, so pine oil after can avoiding locating, that is to say, by the setting of thrust bearing 84,, all can keep strong fix and do not get loose no matter be the position that is adjusted at single hop or two sections.

Claims (7)

1, a kind of two-period form chest expander, for being installed on the sports equipment, comprise that a shell, a relative enclosing cover, two that locks with this shell are placed in drag devices, a flexible handle, a stay cord, the locating unit of this shell and this enclosing cover respectively, and an adjustment unit, it is characterized in that:

This shell has a medium altitude chamber;

This enclosing cover, have one and be positioned at the perforation of central authorities with the corresponding medium altitude chamber of room, of this shell, and the bore hollow tube portion that is slightly larger than this perforation and extends upward and communicate with its room from the basal wall outer peripheral edges, this pipe portion have number be uniformly-spaced be formed at inwall directly to slideway;

These drag devices are placed in respectively in the room of this shell, this enclosing cover, can be separated from each other, and the combination of contacting via adjustment, and one first drag devices has one and is formed at outer peripheral face for the annular groove that twines a stay cord, and at least two Access Divisions that are based in end face;

This flexible handle is positioned at this housing exterior;

This stay cord, an end are fixed on this first drag devices, the other end this housing exterior that stretches through out, and being fixed on this flexible handle, and this drag devices is permanent stay cord to be pulled in the shell, makes flexible handle near shell;

This positioning unit, be placed between two drag devices, having one is based in this body bottom surface with body, at least two that one second drag devices socket-connects and is corresponding at interval and is the mutual clamping block that docks after adjustment with this Access Division, and a flexible member that is placed between this first drag devices and this body, this body has one and extends upward and run through this second drag devices and stretch through into the central siphon of this pipe portion; And

This adjustment unit, comprise that one has the adjustment button of a medium altitude chamber, this adjustment button has an articulating piece that is based in the roof bottom surface, this articulating piece has a high-order portion and delays the low order portion of falling extension by this high-order portion one by one, one matches with this articulating piece merges the brake be placed in this pipe portion, connecing that this brake and this articulating piece connect has a low order portion that matches with the high-order portion of this articulating piece on the face, one from the slow high-order portion of extending and matching with the high-order portion of this articulating piece that rises of low order portion, number be uniformly-spaced be formed at this brake outer peripheral face and with the sliding mutually protuberance of location that closes of the slideway of this pipe portion, an and central shaft, this central shaft has one and is positioned at the bottom for the stop section that is positioned at the shell bottom surface, one extends upward from this stop section and runs through this rotating disk, this flexible member, the body portion of this body and this brake, and be positioned at the lockhole that this top is fixed by lock knot part and outer cover lock knot.

2, two-period form chest expander as claimed in claim 1, it is characterized in that: this adjustment button has more the gap segments of a formation diapire, and this enclosing cover has more one and is slightly larger than the shallow annular groove of adjusting button periphery footpath around this pipe portion and ring Zhou Jing, reach one and be formed at the projection that this shallow annular groove perisporium also is positioned at this gap segments relatively, the height of this projection is a little less than the height of this gap segments.

3, two-period form chest expander as claimed in claim 1, it is characterized in that: the articulating piece of this adjustment button has more two and cuts open half section, respectively be formed with the high-order portion and the low order portion of reverse symmetry on two sections, and this brake has more two and cuts open half section, respectively is formed with on two sections to dock with this articulating piece and the high-order portion and the low order portion of reverse symmetry.

4, two-period form chest expander as claimed in claim 1 is characterized in that: this adjustment unit has more one and is placed in this pipe portion and is positioned at thrust bearing between this brake bottom and this body top.

5, two-period form chest expander as claimed in claim 1, it is characterized in that: this positioning unit has more one for keeping out pad on this flexible member top, for the collar of cover retaining in this flexible member bottom, and one is positioned at this collar bottom and bolt and is buckled in C shape button on this central shaft.

6, two-period form chest expander as claimed in claim 1, it is characterized in that: this shell has a basal wall and and vertically extends and define the surrounding wall of medium altitude chamber from these basal wall outer peripheral edges, this shell has one and stretches out and define the internal ring wall in a space from these basal wall outer peripheral edges, and this first drag devices has one for the rotating disk that twines this stay cord, one axle center that is positioned at this center of turntable and places for central shaft, one around this axle center and from the outward extending internal perisporium of a diapire and define a spatial accommodation that is involutory with the space of this internal ring wall, reach one and be placed in this space, the volute spring of this spatial accommodation, this volute spring is positioned at a inner at center to be fixed with this axle center, being positioned at an outside outer end then is fixed on this internal ring wall, and this stay cord one end is to be fixed on rotating disk, and is wrapped in an outer peripheral face of rotating disk.

7, two-period form chest expander as claimed in claim 1, it is characterized in that: this enclosing cover has a basal wall and and vertically extends and define the surrounding wall of medium altitude chamber from these basal wall outer peripheral edges, this enclosing cover has one and stretches out and define the internal ring wall in a space from this basal wall outer circumferential side, and this second drag devices has an axle center that supplies central shaft to place, one internal perisporium that extends up around this axle center and from a diapire and define a spatial accommodation that is involutory with the space of this internal ring wall, one is placed in this space, the volute spring of this spatial accommodation, and one vertically extend down and define a surrounding wall for the medium altitude chamber of settling this body from these diapire outer peripheral edges, this volute spring is positioned at a inner at center to be fixed with this axle center, is positioned at an outside outer end and then is fixed on this internal perisporium.

Images