JP2002154700A - Pinch roller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pinch roller dispensing with a welding process, and capable of reducing a manufacturing cost. SOLUTION: In this pinch roller, since bending parts 15 and 19 of tip parts 5 and 7 of a plate spring member 10 are inserted into and fixed to an inner race 21 of a bearing 51, the bearing 51 can be fixed to the plate spring member 10 without using a shaft. Thus, the welding process of the shaft can be obviated, the manufacturing cost can be reduced, and the number of part items can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a pinch roller used as a pinch roller for holding a bill such as an automatic teller machine.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a pinch roller of this type has a substantially U-shaped leaf spring material 10 having a tip portion 101A bent and a root portion 101B bent in the opposite direction.
1 is provided. Then, the shaft 105 inserted into the inner race of the bearing 102 is applied from below the distal end portion 101A of the leaf spring material 101 to perform spot welding.

As shown in FIG. 5 (A), this spot welding is performed at a total of four points, two at each of the parallel part 106 and the vertical part 107 of the bent tip part 101A of the leaf spring material 101.
1, P2, P3, and P4.

According to the pinch roller, the root 1
01B is fixed to a predetermined main body, and for example, a bill is guided while being pressed from above by a bearing 102 fixed to the front end portion 101A.

[0005]

However, in the above-described conventional pinch roller, the shaft 105 and the leaf spring material 10 are not provided.
The welding process with No. 1 increased the production cost.

An object of the present invention is to provide a pinch roller which does not require a welding step and can reduce manufacturing costs.

[0007]

In order to achieve the above object, a pinch roller according to the first aspect of the present invention comprises a bearing and a front end of two portions connected to each other to form a U-shape and to sandwich the bearing. And a leaf spring member having an insertion portion provided at the distal end and inserted into the inner ring of the bearing, and an arm connected to the distal end and having a surface orthogonal to the surface of the distal end, It is characterized by having.

According to the first aspect of the present invention, the bearing can be fixed to the leaf spring member without using a shaft because the insertion mounting portion provided at the distal end of the leaf spring member is inserted into the inner ring of the bearing. Therefore, a shaft welding step is not required, the manufacturing cost can be reduced, and the number of parts can be reduced.

Further, since the front end portion and the arm portion for housing and holding the bearing are in a direction where their planes are orthogonal to each other,
While the arm has sufficient elasticity, the bearing can be reliably supported at the tip.

According to a second aspect of the present invention, in the pinch roller according to the first aspect, the leaf spring member has a substantially U-shape in a state where the leaf spring member is unfolded in a plane, and the arm portion is formed from both ends. It is characterized by being extended.

According to the second aspect of the present invention, the leaf spring member has a substantially U-shape in which the arm portions extend from both ends in a state where the leaf spring member is unfolded on a plane. Only by bending, the leaf spring member of the present invention can be easily manufactured.

According to a third aspect of the present invention, in the pinch roller according to the first or second aspect, the insertion mounting portion is
It is a cut-and-raised portion that is cut and raised around a star-shaped hole.

According to the third aspect of the present invention, since the insertion mounting portion is a cut-and-raised portion cut and raised around a star-shaped hole, the insertion mounting portion can be manufactured from one leaf spring member.
Further, since the cut-and-raised portion is formed by cutting around the star-shaped hole, the cut-and-raised portion can be approximated to a cylindrical shape, and the inner race can be uniformly and firmly supported in the circumferential direction.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

FIGS. 1, 2, and 3 show the side, top, and front of a pinch roller according to an embodiment of the present invention. Also, in FIG.
2 shows a state where the leaf spring member 10 is expanded.

In this embodiment, the bearing 51 and the leaf spring member 1
Consists of zero. The leaf spring member 10 has two side portions 1, 2
Are connected at the front part 3. The side portion 1 includes a vertical tip 5 and a horizontal arm 6, and the side portion 2 includes a vertical tip 7 and a horizontal arm 8. The front portion 3 and the vertical tip portions 5 and 7 on both sides thereof have a U-shape. The vertical tip portions 5 and 7 and the horizontal arm portions 6 and 8 extend on planes orthogonal to each other. The bearing 51 is sandwiched between the vertical tip 5 and the vertical tip 7 from both sides in the axial direction.

The vertical tip 7 has a circular tapered portion 12 whose diameter decreases inward in the axial direction of the bearing 1 and a substantially regular hexagonal through hole 13 inside the tapered portion. And has a tapered bent portion 15 that extends in the axial direction inside the inner ring 21 of the bearing 1 from the six sides. The six bent portions 15 are cut-and-raised portions, and are caulked on the inner peripheral surface of the inner ring 21 and inserted into and fixed to the inner ring 21. The above taper portion 12
And the bent portion 15 constitute an insertion mounting portion.

Further, as shown in the developed plan view of the leaf spring member 10 in FIG. 4, like the vertical tip 7, the vertical tip 5 is circular and has a smaller diameter toward the inside of the bearing 51 in the axial direction. It has a tapered portion 17 that is bent so as to have a tapered bent portion 19 inside the tapered portion 17. In addition, the vertical tip 5 has a star-shaped through hole 18 that becomes a substantially regular hexagon when the bent portion 19 is bent. That is, the bent portion 19 is a cut-and-raised portion cut and raised from the star-shaped through hole 18. FIG.
The six bent portions 19 extending from the six sides of the regular hexagonal shape indicated by broken lines are caulked in the axial direction inside the inner ring 21 of the bearing 1 and inserted into the inner ring 21 and fixed.

On the other hand, as shown in FIG. 2, the lateral arms 6 and 8 have a substantially rectangular shape, and the rear ends thereof are bent substantially vertically to form attachment portions 24 and 25. The mounting portions 24 and 25 have mounting holes 26 and 27.

The leaf spring member 10 is made of a leaf spring member 40 stamped into a flat developed shape shown in FIG. That is, the leaf spring member 40 is bent 90 ° to the rear side penetrating the paper at the boundary G1 between the vertical tip 5 and the horizontal arm 6 and the boundary G2 between the vertical tip 7 and the horizontal arm 8. Further, it is bent 90 ° to the back side penetrating the paper at the boundary G3 between the vertical tip 5 and the front 3 and the boundary G4 between the vertical tip 7 and the front 3. In addition, the horizontal arm 6 and the attachment 2
4 and a boundary line G6 between the lateral arm portion 8 and the mounting portion 25 at the boundary line G5 with respect to the front side penetrating the plane of the drawing. This results in a bent leaf spring member 10 as shown in FIGS. The lateral arms 6 and 8 are
The vertical arms 5 and 7 extend on a plane perpendicular to the plane, and are bent up and down to serve as a leaf spring. Therefore, the horizontal arms 6 and 8 can exhibit sufficient elasticity in the vertical direction. Parts 5, 7
Thus, the bearing 51 can be reliably supported.

Further, a bearing 51 is inserted between the vertical tip portion 5 and the vertical tip portion 7, and the tapered portions 12 and 17 are bent toward the inner peripheral surface of the inner race 21 to be bent. By caulking the parts 15 and 19 to the inner peripheral surface of the inner ring 21,
The inner ring 21 of the bearing 51 is connected to the vertical tip portions 5 and 7 of the leaf spring member 10.
Fixed to.

According to this embodiment, the tapered portions 17 and 12 and the bent portions 19 and 1 of the tip portions 5 and 7 of the leaf spring member 10 are provided.
Since the bearing 5 is inserted into and fixed to the inner race 21 of the bearing 51, the bearing 51 can be fixed to the leaf spring member 10 without using a shaft. Therefore, a shaft welding step is not required, the manufacturing cost can be reduced, and the number of parts can be reduced. Further, by simply bending the leaf spring member 40 punched into the developed shape as shown in FIG.
Can be manufactured by a simple process.

Since the six bent portions 19 and 15 as cut-and-raised portions are cut and raised around the star-shaped holes 18 and 14, each of the six bent portions 19 and 15 is constituted. The insertion mounting portion can be approximated to a cylindrical shape, and the inner race 21 can be uniformly and firmly supported in the circumferential direction.

[0024]

As is apparent from the above description, the pinch roller according to the first aspect of the present invention uses a shaft because the insertion mounting portion provided at the distal end of the leaf spring member is inserted into the inner ring of the bearing. In addition, the bearing can be fixed to the leaf spring member. Therefore, there is no need for a shaft welding process, and production costs can be reduced.
In addition, the number of parts can be reduced.

Further, since the front end portion and the arm portion for housing and holding the bearing are in a direction where their planes are orthogonal to each other,
While the arm has sufficient elasticity, the bearing can be reliably supported at the tip.

According to a second aspect of the present invention, in the pinch roller according to the first aspect, the leaf spring member has a substantially U-shape in a state where it is developed in a plane, and the arm portions extend from both ends. Therefore, the leaf spring member of the present invention can be easily manufactured only by bending one flat leaf spring member.

According to a third aspect of the present invention, in the pinch roller according to the first or second aspect, the insertion mounting portion is
Since the cut-and-raised portion is cut and raised around the star-shaped hole, the insertion mounting portion can be manufactured from one leaf spring member. Further, since the cut-and-raised portion is formed by cutting around the star-shaped hole, the cut-and-raised portion can be approximated to a cylindrical shape, and the inner race can be uniformly and firmly supported in the circumferential direction.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a pinch roller of the present invention.

FIG. 2 is a top view of the embodiment.

FIG. 3 is a front view of the embodiment.

FIG. 4 is a development view of the leaf spring member of the embodiment.

FIG. 5 (A) is a plan view of a conventional pinch roller, and FIG. 5 (B) is a side view of the conventional pinch roller.

[Explanation of symbols]

1,2 ... side parts, 1A, 2A ... tip, 3 ... front part, 5,
7: vertical tip, 6, 8: horizontal arm, 10: leaf spring member, 12, 17, taper, 13, 14, 18: through hole,
15, 19: bent portion, 21: inner ring, 24, 25: mounting portion, 51: bearing.

Claims (3)

[Claims] 1. A bearing, a leading end of two parts connected to form a U-shape and sandwich the bearing, and an insertion mounting part provided at the leading end and inserted into an inner ring of the bearing. A leaf spring member having an arm portion connected to the distal end portion and having a surface orthogonal to a surface of the distal end portion. 2. The pinch roller according to claim 1, wherein the leaf spring member has a substantially U shape in a state where the leaf spring member is developed in a plane, and the arm portions extend from both ends. Pinch roller. 3. The pinch roller according to claim 1, wherein the insertion mounting portion is a cut-and-raised portion that is cut and raised around a star-shaped hole.