Buffer board structure of a treadmill

Abstract

A buffer board structure of a treadmill includes bamboo layers made by attaching bamboo sheets side by side, a bottom surface of which is adhered by a membrane layer whereby the bamboo sheets are firmly stuck on the membrane layer. Each membrane layer has an upper and lower faces respectively stuck between the bamboo layers. The bamboo sheets of each bamboo layer face the same juxtaposing direction, whereas bamboo layers juxtaposed lengthways provide a better buffer. By setting one membrane layer between two bamboo layers, contact faces of the bamboo layers and the membrane layer adhered together become smoother, and an adhesive fills in a gap more evenly. A slip resistant layer is stuck on the top bamboo layer. A smoother buffering effect and a stable juxtaposition are obtained when the bamboo layers are trodden to prevent the breakdown of buffer relations between the bamboo sheets and the membrane layers.

Claims

1. A buffer board structure of a treadmill being installed under a belt of said treadmill and applied to create a buffering effect when said belt is trodden to sink and impact on said buffer board structure, said buffer board structure comprising: a plurality of bamboo layers which are placed one over another, each of said bamboo layers including a plurality of bamboo sheets attached side by side along an axial direction, said bamboo sheets of any two of said adjacent bamboo layers being parallel to each other along said axial direction; a plurality of membrane layers, each of said membrane layers being laid between said two adjacent bamboo layers; an adhesive arranged between each of said membrane layers and each of said bamboo layers to adhere said bamboo layer to said membrane layer; and a slip resistant layer adhered to an upper surface of one of said bamboo layers which is placed at a top position, wherein each of said membrane layers is a whole plastic sheet or is made by laminating plastic sheets.

2. A buffer board structure of a treadmill being installed under a belt of said treadmill and applied to create a buffering effect when said belt is trodden to sink and impact on said buffer board structure, said buffer board structure comprising: a plurality of bamboo layers which are placed one over another, each of said bamboo layers including a plurality of bamboo sheets attached side by side along an axial direction, said bamboo sheets of any two of said adjacent bamboo layers being parallel to each other along said axial direction; a plurality of membrane layers, each of said membrane layers being laid between said two adjacent bamboo layers; an adhesive arranged between each of said membrane layers and each of said bamboo layers to adhere said bamboo layer to said membrane layer; and a slip resistant layer adhered to an upper surface of one of said bamboo layers which is placed at a top position, wherein each of said membrane layers is a woven cloth or a non-woven cloth.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is an exploded view showing a buffer board structure of a treadmill of this invention;

(2) FIG. 2 is a schematic view showing the buffer board structure of this invention in combination;

(3) FIG. 3 is a cross-sectional view showing the buffer board structure of this invention;

(4) FIG. 4 is a perspective view showing the buffer board structure of this invention; and

(5) FIG. 5 is a perspective view showing a treadmill in combination with the buffer board structure of this invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(6) To attain the aforesaid feature and objects, this invention is described by following descriptions of the preferred embodiment with the accompanying drawings.

(7) FIG. 1 is an exploded view showing a buffer board structure of a treadmill of this invention. FIG. 2 is a schematic view showing the buffer board structure of this invention in combination. FIG. 3 is a cross-sectional view showing the buffer board structure of this invention. FIG. 4 is a perspective view showing the buffer board structure of this invention. FIG. 5 is a perspective view showing a treadmill in combination with the buffer board structure of this invention.

(8) A buffer board structure 100 of this invention is installed under a belt 201 of a treadmill 200. When the belt 201 is trodden and subjects the buffer board structure 100 to a downward impact, a buffer bounce is created. The buffer board structure 100 comprises a plurality of bamboo layers 1 and a plurality of membrane layers 2.

(9) The bamboo layers 1 are put one over another to form a superimposing arrangement. The adjacent bamboo layers 1 are superimposed along an axial direction.

(10) Further, each bamboo layer 1 is made of a plurality of bamboo sheets 10 parallel to each other. Referring to FIG. 1, the bamboo sheets 10 of the bamboo layer 1 at a top position define an axial direction X. The bamboo sheets 10 of the bamboo layer 1 at a middle position also define the same axial direction X. The axial direction X can be parallel to a running direction of the treadmill 200. Therefore, the use of the structure can attain the best flexibility to provide a preferable shock-absorbing capability and promote a buffering effect.

(11) Each of the membrane layers 2 is laid between the two adjacent bamboo layers 1. The membrane layer 2 can be, but not limited to, a whole wood sheet, a combination of wooden laminating sheets, a woven cloth, a non-woven cloth, a whole plastic sheet or a combination of plastic laminating sheets.

(12) An adhesive 3 can be arranged between each membrane layer 2 and each bamboo layer 1 so that the adjoining bamboo layer 1 and membrane layer 2 can stick together as a whole.

(13) Further, a slip resistant layer 4 is laid on an upper surface of the bamboo layer 1 situated at the top position. Thus, when a user treads on the belt 201 of the treadmill 200, the slip resistant layer 4 helps reduce the contact resistance between the user and the belt 201 and prevents the breakdown of the bamboo sheets of the top bamboo layer 1.

(14) From above, this invention puts a membrane layer 2 between two adjacent bamboo layers 1, so contact faces of the bamboo layers 1 and the membrane layer 2 which are adhered together become smoother and the adhesive 3 fills in a gap more evenly. The slip resistant layer 4 is stuck on the top bamboo layer 1. Thus, this invention provides the bamboo layers 1 with a smoother buffer bounce and a stable juxtaposing concatenation during the treading and sinking action, thereby promoting a buffering effect of the buffer board structure of this invention and preventing the breakdown of the buffer relations between the bamboo sheets 10 of the bamboo layers 1 and the membrane layers 2.

(15) While the embodiment of this invention is disclosed, it is understood that further variations and modifications may be made without departing from the scope of this invention.

(16) From the above description, it is clear to one of ordinary skill in the art that this invention can attain the stated objects and thus can meet the requirement of patentability upon submission.