JPH041378Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a linear guide bearing device.

[Conventional technology]

4 and 5 are generally known as this type of prior art. In this structure, a track body 52 is attached to a bed 51, a track shaft 53 is fixed to the track body 52, and a holder member 54 is fixed to a track body 52. An insertion hole 56 having an opening 55 is formed, an open type cylindrical bearing 58 for linear guidance having a circularly rotating ball row 57 is inserted into the insertion hole 56, and the holder member 54
Fix the stop plate 60 with the screw 59 to the
The rotation stop part 61 having a cross section of 0 is connected to the cylindrical bearing 58.
The rotating plate 60 is applied to the open surface 62 of the cylindrical bearing 58 to prevent it from rotating in the rotational direction, and the rotating plate 60 acts to prevent dust from forming on the open surface 62. The fixing bolt 64 is screwed to prevent the cylindrical bearing 58 from moving in the axial direction.

[Problem that the invention attempts to solve]

However, in this conventional structure, a retaining bolt is used as a means for preventing the axial movement of the cylindrical bearing, so when the retaining bolt is tightened strongly, its tip comes into pressure contact with the outer peripheral surface of the cylindrical bearing, and as a result, the outer cylinder etc. Since it is an open type cylindrical bearing, it has the aspect that a large amount of strain occurs.

[Means for solving problems]

The purpose of the present invention is to solve these inconveniences, and its gist is to form an insertion hole with an opening in the holder member, insert an open-type cylindrical bearing for linear guide into the insertion hole, and The holder member is provided with a stop plate that comes into contact with the open surface of the cylindrical bearing to stop the cylindrical bearing from rotating, and a part of both edges of the stop plate is attached to both sides of the stop plate so that a part of both sides of the stop plate is attached to the open surface. The locking surface is bent at a substantially right angle to the cylindrical bearing to form a locking surface that abuts both axial side surfaces of the cylindrical bearing.

[Operation] When the cylindrical bearing is inserted into the insertion hole of the holder member with its opening and open surface aligned, and the locking plate is provided on the holder member, its locking surface comes into contact with both axial sides of the cylindrical bearing. .

〔Example〕

1 to 3 show preferred embodiments of a linear guide bearing device to which the present invention is applied,
A holder member 1 is fixed to a guide (not shown), and the holder member 1 has an insertion hole 3 having an opening 2.
A row of balls 4 is formed and rotates in the insertion hole 3.
, and an open-type cylindrical bearing 6 for linear guidance with an open surface 5 is inserted therein.

Further, the rotation stop plate 7 of this embodiment is bent to have a square cross section, and a notch 9 is formed on both sides of the rotation stop portion 8.
The outside of the notch 9 is bent, the dimension between the notches 9 is the dimension between both sides of the cylindrical bearing 6, that is, the bearing length, the outside of the notch 9 is bent inward to form the locking surface 10, and the screw The stop plate 7 is attached to the holder member 1 by screwing the screw 11 into the screw hole 12.

13 is a bed, 14 is an orbital body, and 15 is an orbital axis.

Since this embodiment has the above-mentioned configuration, when the open surface 5 and the opening 2 are aligned, the cylindrical bearing 6 is inserted into the insertion hole 3 of the holder member 1, and the stop plate 7 is fixed to the holder member 1 with the screw 11. , the locking surfaces 10 are in reliable surface contact with both side surfaces of the cylindrical bearing 6, and axial movement of the cylindrical bearing 6 is reliably prevented.

Furthermore, the open surface 5 of the cylindrical bearing 6 comes into contact with the inner surface of the rotation stop portion 8 of the rotation stop plate 7, thereby preventing the rotation of the cylindrical bearing 6 in the rotational direction and providing a dust-proofing effect.

Although the rotation stop plate 7 of the above embodiment also has a dust-proofing effect, there is also one that merely functions as a rotation prevention function.

Furthermore, although the stop plate 7 is fixed with the screws 11, other means such as a locking structure may also be used.

Further, the formation means, form, etc. of the locking surface 10 may be changed and designed as appropriate.

[Effect of idea]

As described above, the present invention forms a locking surface on both sides of the stop plate by bending a part of both side edges of the stop plate to abut against both axial sides of the cylindrical bearing. When the cylindrical bearing is inserted into the insertion hole of the holder member by aligning the surface and the opening and the locking plate is fixed to the holder member, the locking surface will surely come into surface contact with both sides of the cylindrical bearing, and the cylindrical bearing will It is possible to reliably prevent the bearing from moving in the axial direction, and the open surface of the cylindrical bearing comes into contact with the stop plate, so that the cylindrical bearing can be stopped from rotating in the rotational direction, and the structure can be simple.

The above intended objectives can be fully achieved.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a side view thereof, Fig. 3 is a plan view thereof, Fig. 4 is a side view of the conventional structure, and Fig. 5 is its plan view. DESCRIPTION OF SYMBOLS 1... Holder member, 2... Opening, 3... Insertion hole, 5... Open surface, 6... Cylindrical bearing, 7...
...Stopping plate, 10...Latching surface.

Claims (1)

[Scope of utility model registration request] forming an insertion hole having an opening in the holder member;
An open type cylindrical bearing for linear guide is inserted into the insertion hole, and a stop plate is provided in the holder member to stop the cylindrical bearing from rotating by coming into contact with the open surface of the cylindrical bearing. A linear guide characterized in that a portion of both side edges of the stop plate is bent at a substantially right angle to the open surface to form a locking surface that comes into contact with both axial sides of the cylindrical bearing. bearing device.