JPH04282015A - Bearing - Google Patents

Abstract

PURPOSE:To provide a bearing wherein the mounting work of a shaft is easy and also the vibration can be suppressed. CONSTITUTION:A positioning locking part 37 is formed on the lower surface 35 of a bearing body 21 in the form of an equilateral triangle pole. The positioning locking part 37 is fitted in one of mounting grooves 14 of an auxiliary frame 6. A bolt 66 is inserted in the screw insertion hole 38 of the bearing body 21, and the bolt 66 is screwed into a nut 65 placed in the mounting groove 14. The shaft of a conveyance roller 5 is inserted in the bearing portion 28 of the bearing body 21 and a cover body 22 is fixed by a bolt 67, thereby also the detachment of the conveyance roller 5 is prevented.

Description

[Detailed description of the invention]

[Object of the invention]

0002

[Industrial Application Field] Conventional bearings of this type include:
For example, a configuration described in Japanese Utility Model Application Publication No. 63-67516 is known. This bearing has a shaft hole bored in the isosceles surface of an isosceles triangular prism, and a slit formed in the lower surface of the bearing.
This slit is inserted into the frame.

0003

However, in the case of the structure described in the above-mentioned Japanese Utility Model Application Publication No. 63-67516, the shaft inserted into the bearing must be inserted from the front of the bearing hole, making the insertion operation complicated. be.

Furthermore, since the slit is simply inserted into the frame, there is a problem in that vibrations are likely to occur.

The present invention was made in view of the above-mentioned problems, and an object thereof is to provide a bearing that allows easy installation of a shaft and suppresses vibration.

[Configuration of the invention]

[0007]

[Means for Solving the Problems] The bearing of the present invention includes a bearing body in the form of an isosceles triangular prism, a shaft hole formed in each isosceles surface of the bearing body and opening upward, and a shaft hole in the lower surface of the bearing body. The bearing body includes a locking portion formed therein, a screw insertion hole that communicates with the upper and lower surfaces of the bearing body, and a cover body that is attached to the upper surface of the bearing body that closes the upper part of the shaft hole.

[0008]

[Operation] According to the present invention, the locking portion on the lower surface of the bearing body is locked to the frame, and a screw is inserted into the screw insertion hole from the top surface to fix the bearing body to the frame. Then, by inserting the shaft into the shaft hole from the top surface and closing the top surface with the cover body, the shaft insertion operation is easy and vibrations are suppressed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the bearing of the present invention will be described below with reference to the drawings.

In FIG. 8, 1 is a main conveyor, and a branch conveyor 2 that branches diagonally is attached to this main conveyor 1.

A normal conveying roller 3 of a predetermined length is rotated by bearings mounted at predetermined intervals in the longitudinal direction between two frames 4, 4, which are disposed parallel to each other and facing each other in the longitudinal direction. It is mounted so that it can move freely. Further, the conveying roller 5, which is shorter than a predetermined length, has one end attached to a bearing attached to the frame 4, and the other end attached to a bearing 8 attached to an auxiliary frame 6 shown in FIG. 1 attached to the frame 4. . These conveyance rollers 5 are sequentially shortened by a predetermined length from the side of the conveyance roller 3 having a predetermined length to the tip end where the diameter is narrowed.

The auxiliary frame 6 is made of extruded aluminum, for example, and as shown in FIG.
1. A mounting groove 14 is formed in the side surfaces 12, 12 and the bottom surface 13 over the entire width in the longitudinal direction. These mounting grooves 14 are
It has an opening on the front surface, and oppositely protruding engaging edges are formed on both sides of this opening.

Furthermore, the bearing 8 includes a bearing body 21 shown in FIGS. 2 to 4 made of synthetic resin, and a bearing body 21 shown in FIGS. 5 to 7, respectively.
The cover body 22 shown in FIG. As shown in FIGS. 2 to 4, this bearing body 21 has a substantially isosceles triangular prism shape, and the isosceles surfaces 25, 25 are
5, communicates with the bottom surface 26, and communicates with the top surface 27.
Bearing portions 28, 28 are formed which constitute shaft holes with openings. Furthermore, positioning portions 31 for positioning the cover body 22 are formed on the top surface 27 so as to be flush with the bottom surface 26 and protrude from the bottom surface 26 side, and each of these positioning portions 31 has an elongated locking hole 32. It is formed. Furthermore, the top surface 2
A screw insertion hole 33 is bored on the isosceles side of 7, and a nut locking portion 34 is formed in the middle of the screw insertion hole 33 and opens at the apex angle of the isosceles surface 25. When the nut is inserted into the predetermined position of 34, the screw insertion hole 33 and the screw hole of the nut are formed coaxially.

On the other hand, a stepped surface portion 36 is formed on the lower surface 35 one step down toward the bottom surface 26 side, and this stepped surface portion 36 has a positioning locking portion protruding parallel to the bottom surface 26 as a locking portion. A section 37 is provided. And the top surface 27
A screw insertion hole 38 is formed in communication between the positioning locking portion 37 on the lower surface 35 and the lower surface 35 . This screw insertion hole 38 has a large diameter portion 39 formed on the upper surface 27 side, a small diameter portion 40 on the lower surface side, and a locking portion 41 between the large diameter portion 39 and the small diameter portion 40. is formed.

The cover body 22 has substantially the same shape as the bearing body 21, and a connecting surface 51 in contact with the bearing body 21 on the bottom surface 50 side has a positioning part 52 positioned in the positioning part 31 of the bearing body 21 and a A positioning recess 53 is formed, and a locking pawl 54 is formed in this positioning portion 52, and this locking pawl is configured to be locked in the locking hole 32 of the bearing body 21. Furthermore, a bearing recess 56 is cut out on the isosceles surface 55 side and is continuous with the bearing portion 28 of the bearing body 21 to form a surface into which a shaft or the like is inserted. In addition, a bearing body 21 is provided on the isosceles surface 55 side.
A screw mounting hole 57 is bored which communicates with the screw insertion hole 33 of. This screw attachment hole 57 also has a large diameter portion 58, a small diameter portion 59, and a locking portion 60 formed therein.

Next, the installation of the above embodiment will be explained with reference to FIG.

First, the positioning locking portion 37 is inserted and locked between the locking edges of the mounting groove 14 on the upper surface 11 of the auxiliary frame 6. Then, insert the nut 65 into the mounting groove 14, screw the bolt 66 inserted into the screw insertion hole 38 into the nut 65,
The bearing body 21 is fixed to the auxiliary frame 6. Next, the shaft of the conveyance roller 5 is inserted into the bearing portion 28 of the bearing body 21. Then, the positioning portion 52 and the positioning recess 53 of the cover body 22 are positioned on the positioning portion 31 of the upper surface 27 of the bearing body 21, and the locking pawl 54 is inserted into the locking hole 32 and locked. Then, in the screw mounting hole 57 of the cover body 22,
The cover body 22 is attached to the bearing body 21 by inserting the bolt 67 and screwing it into a nut (not shown) inserted into the nut locking portion 34 of the screw insertion hole 33 of the communicating bearing body 21 .

Note that each angle of the isosceles triangular prism triangle of the bearing body 21 can be arbitrarily set according to the angle between the main conveyor 1 and the branch conveyor 2 branched from the main conveyor 1.

[0019]

According to the bearing of the present invention, the locking portion on the lower surface of the bearing body is locked to the frame, and the bearing body is fixed to the frame by inserting a screw into the screw insertion hole from the top surface. Then, by inserting the shaft into the shaft hole from the top surface and closing the top surface with the cover body, the shaft can be reliably installed by inserting the shaft through the opening and then closing it with the cover body. Operation can be facilitated and vibrations can be suppressed.

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the present invention.

FIG. 2 is a front view showing the bearing body same as above.

FIG. 3 is a plan view of the same as above.

FIG. 4 is a side view of the same as above.

FIG. 5 is a plan view showing the same cover body.

FIG. 6 is a front view of the same as above.

FIG. 7 is a front view of the same as above.

FIG. 8 is a plan view showing the same conveyor.

[Explanation of symbols]

21 Bearing body 22 Cover body 28 Bearing portion 37 forming the shaft hole Positioning locking portion 38 as a locking portion
Screw insertion hole

Claims (1)

[Claims] 1. A bearing body in the form of an isosceles triangular prism, shaft holes each formed in an isosceles surface of the bearing body and opened upward, a locking portion formed in a lower surface of the bearing body, and the bearing body. A screw insertion hole that communicates the top and bottom surfaces of the main body,
A bearing comprising: a cover body attached to an upper surface of the bearing body for closing an upper part of the shaft hole.