CN2170779Y

CN2170779Y - Chest-developer

Info

Publication number: CN2170779Y
Application number: CN 93220134
Authority: CN
Inventors: 王罗平
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-31
Filing date: 1993-07-31
Publication date: 1994-07-06
Anticipated expiration: 2003-07-31

Abstract

The utility model relates to an improved wrist developer which comprises two grab handles and an elastic element. The utility model is characterized in that the relative inner sides of two grab handles respectively form a pressing and holding part, and the elastic element is a soft elastic body and is pressed by the pressing and holding part to provide the damping. Via the structure, the elastic element has a more amiable restoring force to provide more comfortable restoring property for users. The utility model contains also a correcting member which is arranged between the grab handle and the elastic element and can change the distance od the pivoted point from the elastic element to two grab handles to adjust the damping value.

Description

Chest-developer

The utility model relates to a kind of body-building apparatus, is meant a kind of comparatively comfortable improvement spring-grip in damping value and the use of adjusting especially.

Spring-grip commonly used between two levers with a torque spring as the mechanism that the spring-grip damping is provided, this damping mode has followed for many years, there is following shortcoming in this spring-grip when use:

One, after the user pushes two levers and then compression torque spring of spring-grip, make this spring store an energy, after shedding the application of force, spring promptly releases energy, and makes two levers reply initial angle, but this spring is except restoring force is quite big, its answer speed is also very fast, and the user is when shedding pressing force, and its palm is often replied the lever counterattack of situation by this kind, have a dull ache, very uncomfortable.

Two, to be provided in the damping value of spring-grip be constant to torque spring, can't adjust, and for vast user, be not that everybody is suitable for.

Three, the user is behind the exercise certain hour, and its required damping value must increase relatively strengthening its training burden, but existing spring-grip can't provide this function.

Four, have the phenomenon of elastic fatigue after the long-term use of spring, its damping value promptly can detract, and influences effective utilization.

The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of spring-grip of improvement is provided, and its damping value can be adjusted.

Another purpose of the present utility model is to provide a kind of spring-grip of improvement, and it is comparatively comfortable on using.

Another purpose of the present utility model is to provide a kind of spring-grip of improvement, and its applicability is wide.

A purpose more of the present utility model is to provide a kind of spring-grip of improvement, its its effective utilization that do not detract after long-term use.

For achieving the above object, improvement spring-grip provided by the utility model comprises: two levers, and the one end articulates mutually, can its pivoting point be that fulcrum opens in predetermined angular range, closure; One flexible member is located between two levers, in order to elastic damping to be provided; It is characterized in that: the relative inner of described two levers respectively forms a compression part; Described property element is a soft elastomer, compressed by described compression part, so that damping to be provided.

Via above structure, flexible member is had and suitable restoring force, thereby make spring-grip have more comfortable recovery.

Improvement spring-grip provided by the utility model, its another feature are that it also comprises one and adjusts member, is located between lever and the flexible member, so as to changing the distance of flexible member to two lever pivoting point.Change the length of drag arm thus, to adjust its damping value.

Be the effect of further understanding the purpose of this utility model, feature and being reached, after being described in more detail in than embodiment and conjunction with figs. for one now, wherein:

Fig. 1 is the exploded perspective view of the utility model one preferred embodiment;

Fig. 2 is the combination front view of the utility model one preferred embodiment;

Fig. 3 generally is same as Fig. 2, the adjustment situation of comparing with Fig. 2 and can show flexible member.

At first see also Fig. 1 and Fig. 2, the improvement spring-grip 10 that the utility model provides comprises:

Two levers 20,22, respectively have a shank 24 and a pair of lug 26 of being located at these shank 24 1 ends, lever 20 forms single order portion 28, two levers 20,22 with lug 26 mutual pivot covers in its lug 26 rear sides, and the relative inner of two levers 20,22 is respectively established the compression part 30 of a corresponding concave arc shape.One trunnion 32 is hubbed in these two pairs of lugs, 26 default perforation 34, making two levers 20,22 can its pivoting point be the fulcrum turn, the ora terminalis of lever 22 can be limited in the rank portion 28 of lever 20, makes that two levers 20,22 open in the scope of predetermined angular, closing;

One flexible member 40 is a soft elastomer, and in present embodiment, this flexible member 40 is the rubber material, is a spheroid, and this flexible member 40 is located between two levers 20,22, corresponding to two compression parts 30;

One adjusts member 50, be located between two levers 20,22 and the flexible member 40, can be the structure of any equivalence, only be to disclose a kind of embodiment among the figure, it comprises: an articulated part 52 is a rod member, and side face is provided with screw thread, the one end is established an articulated section 54, and this articulated part 52 is hubbed at trunnion 32 with articulated section 54; One adjustment part 56 is a nut, is fixedly arranged in the flexible member 40 default axis hole (not shown)s, and 56 of adjustment parts are bolted on the articulated part 52.

Assembled state of the present utility model as shown in Figure 2.During use, the user grips two levers 20,22 and the application of force is pushed, and flexible member 40 promptly is subjected to compressing of two compression parts 30 and strain and store an energy.When shedding the application of force that presses on the lever 20,22, flexible member 40 promptly no longer is subjected to the external force effect and elastic recovery, and two levers 20,22 are replied its initial position whereby.

As shown in Figure 2, flexible member 40 has the drag arm that a length is a1 (center with flexible member is a benchmark) apart from the pivoting point of two levers 20,22, thereby this damping value that spring-grip 10 1 is scheduled to is provided.See also Fig. 3, when executing dynamic elasticity element 40, can change adjustment part 56 and be articulated in position on the articulated part 52, and then adjust the position of flexible member 40.Fig. 3 shows the situation that flexible member 40 is more established to downward modulation, apart from the formed drag arm of two levers, 20,22 pivoting points is a2, under the constant preceding topic of force arm, the drag arm a2 of Fig. 3 is long than the drag arm a1 of Fig. 2, thereby have bigger damping value, otherwise, according to the direction shown in the figure when flexible member is established in rise, can shorten drag arm therebetween, thereby less damping value is provided.

The utility model has following advantage when using:

One, this spring-grip can be adjusted its damping value, and visual its user mode of user is adjusted optimal damping value voluntarily, so the utility model is suitable for vast user.

Two, the stressed back of flexible member is when elastic recovery, and its answer situation is comparatively gentle submissive, can not cause too big impulsive force to the user, and is existing more comfortable with the person in the use.

Three, the user can be about to damping value of the present utility model certainly and heightens gradually, increases the required damping value of its training to cooperate its training condition in good time.

Four, the utility model also can be via adjusting its damping value by way of compensation when the phenomenon of elastic fatigue appears in long-term use, and utilization benefit does not more now use the person good.

Should be understood that the foregoing description only is to be used to illustrate the utility model but not to be limited, all equivalences of being done according to the claims prescribed limit are implemented to belong to scope of the present utility model.

In sum, of the present utility model simple and reasonable for structure, not only overcome the shortcoming that exists in the prior art, and realized purpose of the present invention.

Claims

1, a kind of spring-grip, it comprises:

Two levers articulate mutually with the one end, can its pivoting point be that fulcrum opens in predetermined angular range, closure;

One flexible member is located between two levers, in order to elastic damping to be provided;

It is characterized in that: the relative inner of described two levers respectively forms a compression part, and described flexible member is a soft elastomer, and the predetermined geometrical body of tool, compressed by described compression part, so that damping to be provided.

2, spring-grip as claimed in claim 1 is characterized in that it also comprises: be located between lever and the flexible member, can change the distance of flexible member to two lever pivoting point, to adjust the adjustment member of its damping value.

3, as spring-grip as described in the claim 2, it is characterized in that: described flexible member is offered an axis hole, and described adjustment member comprises that one is the articulated part of rod, and the one end is connected in the pivoting point of two levers; One is located at the interior adjustment part of axis hole of this flexible member, and this adjustment part is articulated in the free end of articulated part, can transfer along the axial slip of articulated part and establish.

4, spring-grip according to claim 1, it is characterized in that: described flexible member is good with spherical, and each compression part is arcs of recesses for the shape of this flexible member.