CN2394663Y - Spring resistance source of tubular chest developer - Google Patents
Spring resistance source of tubular chest developer Download PDFInfo
- Publication number
- CN2394663Y CN2394663Y CN 99217041 CN99217041U CN2394663Y CN 2394663 Y CN2394663 Y CN 2394663Y CN 99217041 CN99217041 CN 99217041 CN 99217041 U CN99217041 U CN 99217041U CN 2394663 Y CN2394663 Y CN 2394663Y
- Authority
- CN
- China
- Prior art keywords
- pulley
- resistance source
- hook
- resistance
- spring
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a spring resistance source of a tubular chest developer of a sports body-building apparatus. A tension spring is arranged in a pipe body of the tubular chest developer. One end of the tension spring is fixed, and the other end is provided with a movable pulley wheel. The movable pulley is provided with a nylon rope. Simultaneously, a pulley wheel is additionally arranged at the opening position at one end provided with the pulley wheel of the pipe body so that both ends of the nylon rope are guided outside the pipe body by the two pulley wheels. One end is connected with a pull ring, and the other end is provided with a hook. When strong resistance is required, the pull ring is hooked by the hook. When low resistance is required, the hook is released to be clamped outside the pulley wheels. By using the resistance source, the service life is longer than that of an elastic rubber strip used by the prior design of the apparatus, and the function of the apparatus is more convenient for exerting.
Description
The utility model relates to the physical fitness apparatus, is specifically related to tube type chest-expander.
Tube type chest-expander is a disclosed not long ago patent application project (application number: 98119890.2), be a kind of novel chest expander.Its technical scheme is to be sources of resistance with the elastic adhesive tape, adhesive tape is contained in the straight tube of a hard, outside the fixed pulley fairlead of straight tube end side surface opening part, and is connected with draw ring.This chest expander function is fine, but it has a weakness, does sources of resistance with elastic adhesive tape exactly, and the service life of adhesive tape is poor, can make troubles.
The purpose of this utility model is in order to overcome this weakness of tube type chest-expander, to be improved the service life of chest expander.
The purpose of this utility model is achieved in that the sources of resistance with tube type chest-expander changes extension spring into, and an end of extension spring is fixed in the straight tube, and the other end is equipped with a movable pulley; Carried rope on the movable pulley on the arm; Simultaneously, the opening part that fixed pulley is housed in straight tube one end side surface increases a fixed pulley, makes the two ends of rope, draws straight tube through two fixed pulleys respectively, and can be connected with handle individually or simultaneously.
The utility model with the advantage that the sources of resistance of elastic adhesive tape is compared is:
1. improved the service life of apparatus, and kept the original function of tube type chest-expander, comprised that resistance intensity still has two grades can choose wantonly, brings convenience to use;
2. from the production and operation aspect, the production of adhesive tape must be arranged in batch, and spring does not then have this restriction, thereby brings convenience for the production and operation of this project.
Below the embodiment accompanying drawing is explained:
Situation schematic diagram when the tube type chest-expander that Fig. 1 is equipped with the spring resistance source uses;
Fig. 2 is equipped with the tube type chest-expander front appearance figure in spring resistance source;
Fig. 3 spring resistance source assembling situation side view.
Indicate among the figure: 1. extension spring; 2. straight tube; 3. movable pulley; 4. nylon rope; 5. fixed pulley; 6. shake hands; 7. link up with.
One end of extension spring 1 is fixed in the end of straight tube 2.Movable pulley 3 is loaded on the other end of extension spring 1.Nylon rope 4 was carried on the arm by movable pulley 3, and its two ends are respectively outside two fixed pulley 5 fairleads.One end of nylon rope 46 is fixedlyed connected with handle, and the other end has hook 7, can tangle handle, also can not hang and is stuck in outside the pulley separately.When handle only drew nylon rope one end, pulling force was little; When handle drew the two ends of nylon rope simultaneously, pulling force was big.So can select easily to use.
Claims (1)
- The spring resistance source of tube type chest-expander is characterized in that: be loaded on extension spring in the straight tube of tube type chest-expander, an end of extension spring is fixed in the straight tube, and the other end is equipped with a movable pulley; Carried rope on the movable pulley on the arm; Simultaneously, the opening part that fixed pulley is housed in straight tube one end side surface increases a fixed pulley, makes the two ends of rope, draws straight tube through two fixed pulleys respectively, and can be connected with handle individually or simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99217041 CN2394663Y (en) | 1999-07-22 | 1999-07-22 | Spring resistance source of tubular chest developer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99217041 CN2394663Y (en) | 1999-07-22 | 1999-07-22 | Spring resistance source of tubular chest developer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2394663Y true CN2394663Y (en) | 2000-09-06 |
Family
ID=34008557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99217041 Expired - Fee Related CN2394663Y (en) | 1999-07-22 | 1999-07-22 | Spring resistance source of tubular chest developer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2394663Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2949364A1 (en) * | 2011-07-13 | 2015-12-02 | Balanced Body, Inc. | Reformer exercise apparatus |
| CN110013649A (en) * | 2019-04-17 | 2019-07-16 | 江苏海事职业技术学院 | A kind of athletic training equipment special |
-
1999
- 1999-07-22 CN CN 99217041 patent/CN2394663Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2949364A1 (en) * | 2011-07-13 | 2015-12-02 | Balanced Body, Inc. | Reformer exercise apparatus |
| CN110013649A (en) * | 2019-04-17 | 2019-07-16 | 江苏海事职业技术学院 | A kind of athletic training equipment special |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |