Patent Application
20080035441
In order that those skilled in the art can further understand the present invention, a description will be described in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.
Referring to
An oil pressure rod body 1 has a spindle 11 extended from an interior thereof and out of a first end of the oil pressure rod body 1. The spindle 11 is connected to a plug (not shown) in the oil pressure rod 1. The telescopic movement of the spindle 11 provides the functions of damping and pressure storage.
An outer sleeve 12 sleeves the oil pressure rod body 1 for preventing the oil pressure rod body 1 to burn the user.
A position portion 121 is installed at a second end of the oil pressure rod body 1 opposite to the first end of the oil pressure rod body 1. A pivotal portion 111 is formed at one end of the oil pressure rod 1. By the position portion 121 and pivotal portion 111, the oil pressure rod can be assembled to another object to present the effects of damping and pressure storage.
The principle and structure of the oil pressure rod are known in the prior art and thus the details will not be further described herein.
A spindle sleeve 13 encloses the spindle 11 of the oil pressure rod body 1. An inner diameter of the spindle sleeve 13 is slightly larger than the oil pressure rod body 1 and the outer sleeve 12. One end of the spindle sleeve 13 is formed with a head 131. An inner space of the head 131 is communicated to the spindle sleeve 13 for receiving a pivotal portion 111. Two sides of the head 131 have openings 132 so that the pivotal portion 111 in the head 131 can be assembled with other object through the opening 132. When the spindle 11 of the oil pressure rod body 1 telescopically moves, since the head 131 is installed in the pivotal portion 111 of the spindle 11, the spindle sleeve 13 will axially move along the oil pressure rod body 1 and out of the outer sleeve 12 so as to isolate the heat of the spindle 11.
The oil pressure rod body 1 of the present invention can be assembled to a small size body exerciser or other object and by the damping and pressure storage effects of the spindle 11 can be effectively functioned. In the present invention, one example of the present invention is illustrated, wherein the oil pressure rod body 1 is assembled to a treading machine. However this is not used to confine the scope of the present invention.
Referring to
The position portion 121 of the outer sleeve 12 of the oil pressure rod body 1 is assembled to a seat 22 of the treading machine 20. The spindle 11, pivotal portion 111 of the spindle sleeve 13, and the head 131 are pivoted to the lower end of the treadle 21 so as to telescopically move with the treadle 21.
In use of the present invention, referring to
When the treadle 21 is at a higher place and is not treaded, the spindle 11 of the oil pressure rod body 1 is at an extension state, the spindle sleeve 13 out of the spindle 11 is pulled to be out of the outer sleeve 12 and the oil pressure rod body 1, as shown in
When the treadle 21 is treaded, as shown in
When the treadle 21 returns to the higher position and is not treaded, the spindle 11 is pulled with the treadle 21 to have a longer length and the spindle sleeve 13 out of the spindle 11 will be driven by the pivotal portion 111 to return to the state separated from the oil pressure rod body 1. Thus the spindle 11 is enclosed by the spindle sleeve 13.
The spindle sleeve 13 may move out of the outer sleeve 12 with the extension of the spindle sleeve 13 so as to prevent the spindle 11 to contact and thus burn the user, but the movement of the spindle 11 is not interfered. The extension and compression of the spindle sleeve 13 are helpful to drive the internal air to flow effectively so as to increase the heat dissipation of the oil pressure rod body 1.
The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
