JPH0521171Y2 - - Google Patents

Description

[Detailed description of the invention] a. Industrial application field The present invention relates to a roller for a paper sheet counting machine, in particular,
The present invention relates to a new improvement for attaching and detaching a high friction member to and from a roller body for feeding and separating paper sheets.

b. Prior Art Conventionally, various proposals have been made regarding rollers used in paper sheet counting machines, etc., but for example, regarding a feeding roller used for feeding paper sheets, one example is the one proposed by the applicant of the present application, Jitsukasho. 59−
An example is a feed roller as disclosed in Japanese Patent No. 127038.

In this case, the feeding roller is a rotating roller having an almost cylindrical shape as a whole, and this rotating roller is made of a lightweight metal such as aluminum, and the notch 3 formed in a part of the rotating roller is made of a relatively hard material. The friction member made of a material such as urethane rubber was integrally provided by a baking process.

c. Problems to be solved by the invention Therefore, when the friction member of the feeding roller wears out and needs to be replaced due to long-term use of the paper sheet counting machine, the first thing to do is to replace the hopper part (not shown). After removing the paper sheet placement plate (bottom plate) and removing the side panel, remove the shaft that locks the feed roller from the side plate, replace this roller with a new one, and repeat the removal process in reverse order. The roller replacement work was completed by following these steps.

In this case, the work of replacing the feeding roller is complicated and time-consuming, and further requires adjustment to maintain a synchronized relationship with the feeding auxiliary roller.
This had become an obstacle to maintenance work.

Furthermore, although the only part that actually wears out and deforms is the friction surface, the roller itself has to be replaced because the entire structure is integrated as mentioned above, which is relatively expensive and prevents any damage. Since parts of the main body that are missing must also be discarded at the same time, costs are extremely high.

The present invention was made to solve the above problems, and in particular, by providing a friction member on an elastic plate for feeding and separating paper sheets, this friction member can be attached to the roller body. On the other hand, it is an object of the present invention to provide a roller for a sheet counting machine that can be reliably and easily attached and detached.

d Means for Solving the Problems The roller for a paper sheet counting machine according to the present invention has a peripheral surface composed of a low-friction surface and a high-friction surface, and the high-friction surface is provided on an elastic plate. It is composed of a deformable high-friction member, the low-friction surface is composed of a roller body, and the elastic plate is detachably attached to the roller body.

e Function In the roller for paper sheet counting machine according to the present invention, the high friction surface is composed of a deformable high friction member provided on the elastic plate, so the elastic plate is inserted into the notch formed in the roller body. By attaching and detaching the high-friction surface to the holding groove, it is extremely easy to replace the high-friction surface.

In addition, since the elastic plate with high friction members is refurbished with a metal plate or resin plate with sufficient elasticity,
It has good bite with the roller body and can be installed stably with one touch.

f. Example Hereinafter, an example of the roller for a sheet counting machine according to the present invention will be described with reference to the drawings.

In FIGS. 1 to 4, the reference numeral 1 indicates a roller body that is generally disk-shaped as a whole. This roller body 1 is made of hard resin or metal, and its axial center is The part is equipped with a shaft hole 2.

A low friction surface 3 made of the same material as the roller body 1 is formed on the circumferential surface 1a of the roller body 1, and a part of the circumferential surface 1a has an opening surface 4a on the entire surface and a rear surface. A notch 4 with a stopper wall 6 is formed at a predetermined angle θ. At both ends of the notch 4, a pair of retaining grooves 5, which are approximately L-shaped, are provided along the axial direction of the roller body 1.
and 5a are formed.

Within the cutout portion 4, there is removably provided a high-friction body 9 which is a combination of an elastic plate 7 made of a material such as metal or resin which is highly elastic and does not easily become worn out, and a high-friction member 8 which is made of a soft and deformable material such as rubber and forms a high-friction surface, and L-shaped locking pieces 7a (described later) formed on both side ends of this elastic plate 7 engage with the retaining grooves 5 and 5a.

The high friction member 8 is integrally attached to the elastic plate 7 by baking, as shown in FIGS. 5 to 7, and has a plurality of protrusions formed on the bottom of the high friction member 8. 8a protrudes through a through hole (not shown) formed in the elastic plate 7, and is integrally coupled with the elastic plate 7.

Further, on the surface of the high friction member 8, a plurality of protrusions 8b and grooves 8c are alternately formed along the axial direction of the roller body 1, and in plan view, as shown in FIG. A groove 8d provided perpendicularly to the axial direction and a groove 8e communicating with and forming a part of a circumferential groove 8i of the roller body 1 to which a separating roller for paper handling (not shown) is joined, Three friction stripes 8f are formed.

Further, on both sides of the elastic plate 7, an insertion portion 8g is provided in a portion where the high friction member 8 is not provided.
and 8h are formed, and one insertion portion 8h has a notch 8ha, and this notch 8ha functions for indicating and guiding the insertion direction. Each insertion part 8g
and 8h, when locking the L-shaped locking piece 7a in the holding grooves 5 and 5a, each holding groove 5 and 5a
It is configured to be inserted simultaneously into the

Therefore, in the above-described configuration, when attaching the high friction body 9 to the roller body 1, as shown in FIG.
The insertion portion 8g on the long side is inserted into the holding groove 5 from the opening surface 4a side of the notch 4 in a curved state along the inner curved surface.
a, and then insert the notch 8ha of the insertion portion 8h on the short side into the holding groove 5 on the other side, a repulsive force (returning force) due to bending of the elastic plate 7 acts,
These insertion portions 8g and 8h are locked and held in the holding grooves 5 and 5a together with the L-shaped locking pieces 7a.

In this state, when the elastic plate 7 is pushed in as a whole in the direction of arrow A, the insertion parts 8g and 8h slide within the holding grooves 5 and 5a, and the side end 7 of the elastic plate 7
The positioning is achieved by the contact of b with the stopper wall 6, and the high-friction member 8 is also located at the portion where it substantially contacts the stopper wall 6,
As shown in FIG. 1, the high friction body 9 is mounted within the notch 4. As shown in FIG.

On the other hand, when the high friction member 9 is worn out and needs to be replaced, the insertion portion 8g can be replaced by placing a finger on the high friction member 8 and forcibly moving it in the direction opposite to the arrow A during installation. and 8h are holding grooves 5 and 5a
As shown in FIG. 4, the high friction body 9
is removed from the notch 4, and the elastic plate 7 returns from its curved state to its original straight plate state, making it extremely easy to replace.

In this embodiment, the case where the roller for a sheet counting machine is applied as a feed-out roller has been described, but it goes without saying that the application is not limited to a feed-out roller, but can be applied to various rollers such as a feed-out roller. be. Also, the high friction body 9 is not limited to being inserted into the holding grooves 5 and 5a, but may be mounted by screws (not shown).

g. Effects of the invention As described above, the roller for a paper sheet counting machine according to the invention is configured so as to be coupled to the roller body using a high friction body in which a high friction member is disposed on an elastic plate. Since the friction member is attached to the notch of the roller body through the elastic plate, the high friction member can be securely attached to the roller body by the repulsion effect when the elastic plate is curved. At the same time, due to the repulsive action, the roller does not fall off (separate) even during rotational operation, and a secure locking and holding state can be maintained.

In addition, when this high-friction member needs to be replaced due to wear, it is possible to replace the high-friction member alone, eliminating the need to replace the feed-out roller itself as in the past. The rollers can be replaced with one touch by the sliding operation based on the repulsion of the folding, which greatly simplifies maintenance work on the rollers of this type of paper sheet counting machine and improves reliability. This can greatly contribute to improvements in terms of cost as well.

[Brief explanation of the drawing]

The drawings show an embodiment of the roller for a paper sheet counting machine according to the present invention. Fig. 1 is a perspective view showing a state in which a high friction body is attached to the roller body, and Fig. 2 is a view on the left side of Fig. 1. 3 is a side view showing the roller body, FIG. 4 is a plan view showing a separated state of the high friction body and the roller body, and FIG. 5 is an enlarged plan view of the high friction body.
6 is a right side view of FIG. 5, and FIG. 7 is a side view of FIG. 5. In the drawing, 1 is the roller body, 1a is the peripheral surface, 3 is the low friction surface, 4 is the notch, 5 and 5a are the holding grooves, 7 is the elastic plate, 8 is the high friction member (high friction surface), 9 is the high friction surface It is a friction body.

Claims (1)

[Claims for Utility Model Registration] (1) In a roller for a paper sheet counter in which the circumferential surface 1a is composed of a low friction surface and a high friction surface, the high friction surface is formed by a deformation provided on the elastic plate 7. A paper sheet comprising a flexible high-friction member 8, the low-friction surface 3 comprising a roller body 1, and the elastic plate 7 being detachably attached to the roller body 1. Roller for counting machine. (2) The roller body 1 has a pair of holding grooves 5a, 5 provided at both ends of the notch 4 formed on the periphery thereof, and the elastic plate 7 is provided in the holding grooves 5a, 5. The roller for a paper sheet counter according to claim 1, characterized in that: