Buffering structure of treadmill
A buffering structure is coupled to a treadmill to buffer an action route of a support device. The buffering structure comprises a rockshaft and a buffering cushion. The rockshaft is mounted on the bottom of the support device and pivotally connected to the treadmill. The buffering cushion is connected to the outer surface of the rockshaft. The rockshaft and the buffering cushion are able to buffer the action route of the support device. As a result, the buffering structure of the present invention has simple configuration and low cost, and it is able to adjust the buffer route and not easy to get damaged.
The present invention relates to a buffering structure, and more particularly to a buffering structure of a treadmill to buffer the action route of a support device by means of a rockshaft and a buffering cushion, wherein the buffering structure of the present invention has simple configuration and low cost, and it is able to adjust the buffer route and not easy to get damaged.
BACKGROUND OF THE INVENTIONIn order to protect the user's legs from being hurt by excessive large counterforce created transiently by the runway platform, the common commercial treadmill generally has a buffering mechanism. However, the general buffering mechanism has poor performance and only provides single buffer action. Therefore, it is unable to provide different degrees of adjustment for different users. Accordingly, the exerciser's legs, especially knees and ankles, may get injured easily.
Although the existing exercise treadmill may equip with another buffering mechanism to stagedly adjust the degree of shock absorption. In addition, it has complicated configuration and is easy to get damaged. In addition, it has high cost, resulting in degraded competitiveness. In addition, every user must adjust the buffering structure individually, resulting in the inconvenience in use and affecting the user's desire to use.
SUMMARY OF THE INVENTIONIn view of the conventional drawbacks, it is an object of the present invention to provide a buffering structure, which has simple configuration and low cost, and it is able to adjust the buffer route and not easy to get damaged.
In order to achieve the foregoing and other objects, a buffering structure is coupled to a treadmill to buffer an action route of a support device. The buffering structure comprises a rockshaft and a buffering cushion. The rockshaft is mounted on the bottom of the support device and pivotally connected to the treadmill. The buffering cushion is connected to the outer surface of the rockshaft.
As a result, the buffering structure of the present invention has simple configuration and low cost, and it is able to adjust the buffer route and not easy to get damaged.
Referring to
Referring to
Referring to
When the user requires a larger buffer route, the rockshaft 21 can be shifted toward one side by means of the grip 24 and the control rod 23 so as to enable the buffering cushion 25 to depart from the ascending/descending route of the support device 123, as shown in
When the user requires a smaller buffer route, the rockshaft 21 can be shifted toward the other side by means of the grip 24 and the control rod 23 so as to enable the buffering cushion 25 to enter the ascending/descending route of the support device 123, as shown in
Referring to
The connection rod set 31 has a first rockshaft 311 and a second rockshaft 312, which are pivotally connected to the bottom of the lateral frame 122 of the treadmill 1. The first rockshaft 311 and a second rockshaft 312 are parallel to and located against each other, and they affect each other. The both ends of the first rockshaft 311 are respectively, pivotally connected to the control devices 32, 33. The control devices 32, 33 are extended toward the outside of the lateral frame 122. In addition, the control devices 32, 33 can shift in opposite directions by means of the first rockshaft 311, and they are protrudent to the outside of the lateral frame 122 oppositely. In addition, two positioning parts 321, 331 are extended respectively from the outer surfaces of the control devices 32, 33. The positioning parts 321, 331 have a triangular form. The positioning devices 34, 35 are respectively mounted on the laterals of the positioning parts 321, 331. The positioning devices 34, 35 have respective elastic rods 341, 351 and respective rolling wheels 342, 352. The elastic rods 341, 351 are bended and have a compression route. The elastic rods 341, 351 are connected to the inner sides of the lateral frame 122 of the treadmill 1 via respective one ends thereof. In addition, the respective other ends of the elastic rods 341, 351 are movably connected to the rolling wheels 342, 352. The rolling wheels 342, 352 are located to lean against the laterals of the positioning parts 321, 331. The buffering cushions 36, 37 are respectively, pivotally connected to both ends of the second rockshaft 312. The buffering cushions 36, 37 can shift in opposite directions by means of the second rockshaft 312. When the buffering cushions 36, 37 shift in opposite directions, the outer sides of the buffering cushions 36, 37 can lean against a retaining part 122A (shown in
Referring to
When the user requires a smaller buffer route, the first rockshaft 311 can be shifted toward one side by means of the control device 33, wherein the first rockshaft 311 can also shift the second rockshaft 312 to enable the buffering cushion 37 to enter the ascending/descending route of the support device 123. The support device 123 is located slantingly and the buffering cushion 36 is located more near one end of the support device 123 that pivotally connects to the lateral frame 122 so the buffer route is small.
On the contrary, when the user requires a larger buffer route, the first rockshaft 311 can be shifted toward one side by means of the control device 32, wherein the first rockshaft 311 can also shift the second rockshaft 312 to enable the buffering cushion 36 to enter the ascending/descending route of the support device 123. The support device 123 is located slantingly and the buffering cushion 36 is located far from one end of the support device 123 that, pivotally connects to the lateral frame 122 so the buffer route is large.
In addition, it is worth to mention that in the above-mentioned preferred embodiments, the buffering structures 2, 3 are mounted inside the ascending/descending mechanism 12 of the treadmill 1. However, the buffering structures 2, 3 are generally designed to cooperate with the support device 123 that supports the weights of the runway platform 112, the runway belt 113 and the user. Thus, it can be shown that the buffering structure 2 only needs to be mounted between a hold of the runway platform 112 and the runway belt 113 and the action route of the hold. The buffering structure 2 is not limited to be disposed inside the ascending/descending mechanism 12. The foregoing purposes and effects can be achieved as long as the buffering structure 2 is disposed properly.
Claims
1. A buffering structure of a treadmill, said buffering structure being coupled to a treadmill to buffer an action route of a support device, said buffering structure comprising:
- a rockshaft mounted on the bottom of said support device and pivotally connected to said treadmill; and
- a buffering cushion connected to an outer surface of said rockshaft.
2. A buffering structure of a treadmill according to claim 1, further comprising a positioning device having a first end pivotally connected to one end of said rockshaft and a second end pivotally connected to said treadmill.
3. A buffering structure of a treadmill according to claim 1, further comprising a control rod connected to said rockshaft and a grip fixedly connected to a top end of said control rod.
4. A buffering structure of a treadmill according to claim 1, wherein said buffering cushion is of an elastic material.
5. A buffering structure of a treadmill according to claim 1, wherein said buffering cushion is a rubber cushion.
6. A buffering structure of a treadmill, said buffering structure being coupled to a treadmill to buffer an action route of a support device, said buffering structure comprising:
- a connection rod having a first rockshaft and a second rockshaft pivotally connected to said treadmill, said first rockshaft and said second rockshaft being parallel to and located against each other;
- at least two control devices respectively, pivotally connected to both ends of said first rockshaft for controlling the action of said connection rod; and
- at least two buffering cushions respectively, pivotally connected to both ends of said second rockshaft, said buffering cushions being able to shift in opposite directions by means of said second rockshaft.
7. A buffering structure of a treadmill according to claim 6, wherein said buffering cushions are of an elastic material.
8. A buffering structure of a treadmill according to claim 6, wherein said buffering cushions are rubber cushions.
9. A buffering structure of a treadmill according to claim 6, wherein said control devices are extended outward and able to shift in opposite directions by means of said first rockshaft, wherein two positioning parts are extended respectively from outer surfaces of said control devices.
10. A buffering structure of a treadmill according to claim 9, further comprising at least two positioning devices, wherein said positioning devices have respective elastic rods and respective rolling wheels, and said elastic rods have respective first ends connected to said treadmill and respective second ends respectively, movably connected to said rolling wheels, wherein said rolling wheels are located to lean against laterals of said positioning parts.
Type: Application
Filed: Jun 22, 2007
Publication Date: Dec 25, 2008
Inventor: Yu-Ming Chu (Ping Chen)
Application Number: 11/812,977
International Classification: A63B 22/02 (20060101);