JPS5848415Y2 - Cross roller guide - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cross roller guide capable of holding transfer rollers reliably and well.The structure of the invention will be described in detail as follows with reference to the attached drawings showing one embodiment. It is.

A plurality of rolling rollers 2 are arranged at a predetermined pitch in the longitudinal direction of the holding plate 1, with the axes of the rolling rollers 2 intersecting each other at 90 degrees and protruding from both the front and back sides of the holding plate 1. The roller hole 3 into which the rolling roller 2 is loosely fitted is formed in the holding plate 1, and the transfer roller 2 is held on both left and right sides of the roller hole 3. A front support end piece 4a that supports one side surface 2a and a back support end piece 4b that supports the other side surface 2b of the rolling roller 2 are cut and raised from the holding plate 1 to protrude from the front and back surfaces. Supporting end pieces 4a, 4b
, the rolling [roller bearing surface 5a that comes into contact with the side surface of j-ra 2]
, 5b are cut out parallel to the side surfaces 2a, 2b of the rolling roller 2, and the driving roller 6 is held by the roller bearing surfaces 5a, 5b.

FIG. 3 is a cross-sectional view showing how the upper guide body 7 is used.
a. The lower guide body 7b has a rolling groove 8a.

8b is formed in the rolling direction, and this rolling groove 3a.

8b is formed by the side surface and outer peripheral surface of the rolling roller 2.
The figure shows a structure in which the shaped portions 9a and 9b are engaged to guide the linear movement of the upper guide body a or the lower guide body 7b.

BACKGROUND ART Conventionally, this type of motion guide bearing is well known and is commercially available as a linear roller guide, roller way, or the like.

The most important part in manufacturing this bearing is not only the precision of the rolling rollers, but also the strength of the attachment of the transfer rollers to the retaining plate to ensure that they do not come off easily. .

In view of such problems, the present invention has a roller hole 3 in which the rolling roller 2 is loosely fitted in the holding plate 1, and a roller hole 3 for the transfer roller 2 is formed on both left and right sides of the roller hole 3. A front support end piece 4a that supports one side surface 2a and a back support end piece 4b that supports the other side surface 2b of the rolling roller 2 are cut and raised from the holding plate 1 and provided to protrude from the front and back surfaces. Supporting end pieces 4a, 4b
A roller support surface 5a that comes into contact with the side surface of the rolling roller 2.

5b is cut out parallel to the side surfaces 2a, 2b of the rolling roller 2, and the driving roller 6 is formed on the roller bearing surfaces 5a, 5b.
Since the transfer roller 2 is configured to be held loosely in the roller hole 3, one side surface 2a of the transfer roller 2 is in contact with the front support end piece 4a, and the other side surface 2b of the rolling roller 2 is in contact with the back support end piece 4b. Therefore, the transfer roller 2 is held in a pinched manner, and therefore, the transfer roller 2 is surely held by the holding plate 1 without being easily detached by the two front and back support end pieces 4a and 4b. This means that it can be maintained.

Particularly important are the front and back support end pieces 4a.

4b, the roller bearing surfaces 5a and 5b that contact the rolling roller 2 side surfaces 2a and 2b are connected to the rolling roller 2 side surfaces 2a and 2b, respectively.
Since the notch is formed parallel to 2b, the roller bearing surfaces 5a, 5
Due to the presence of b, both side surfaces 2a and 2b of the transfer roller 2 are held in a state of surface contact, so that the transfer roller 2 can be held more reliably and stably, and the roller support surface 5a.

Since 5b is cut out parallel to both side surfaces 2a and 2b of the rolling roller 2, the rolling resistance of the roller can be kept extremely small.

Furthermore, the formation of the notches in the roller bearing surfaces 5a, 5b allows the respective roller bearing surfaces 5a, 5b to be shaped continuously and at the same time, making it suitable for mass production and can be manufactured at low cost.

As described above, according to the present invention, it is possible to provide a cross roller guide that exhibits excellent practical effects such as being able to hold the transfer roller reliably and well.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is a longitudinal sectional view, and FIG. 3 is a longitudinal sectional view showing the state of use. 1... Holding plate, 2... Rolling roller, 2
a... One side, 2b... The other side,
3...Roller hole, 4a...Front support end piece, 4b...Back support end piece, 5a. 5b...Roller bearing surface, 6...Drive roller.

Claims (1)

[Scope of utility model registration request] A plurality of rolling rollers were held at a predetermined pitch in the longitudinal direction of the holding plate, with the axes of the rolling rollers intersecting alternately at 90 degrees and protruding from both the front and back sides of the holding plate. The holding plate has a roller hole formed therein, into which the transfer roller is loosely fitted, and front support end pieces for supporting one side of the rolling roller are provided on both left and right sides of the roller hole. and a back support end piece that supports the other side surface of the rolling roller are cut and raised from a retaining plate and protruded from the front and back surfaces, and the front and back support end pieces abut on the side surface of the rolling roller. A cross roller guide characterized in that a surface is cut out parallel to a side surface of the rolling roller, and the roller supporting surface is configured to hold the driving roller.