JP2540619Y2 - Rack for lens - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens rack suitable for ultrasonic cleaning of lenses such as spectacle lenses and optical lenses.

[0002]

2. Description of the Related Art Conventionally, before applying a functional film such as a cured film or an antireflection film to a spectacle lens (hereinafter simply referred to as a lens), a cleaning operation for removing dirt on the lens surface has been performed.
Such a lens cleaning operation uses a cavitation caused by an ultrasonic wave generated by immersing a lens in the cleaning tank, immersing the lens in the cleaning liquid, and emitting ultrasonic waves into the cleaning liquid by an ultrasonic generator. Ultrasonic cleaning is common. As a rack for a lens which is used for the ultrasonic cleaning and stores and holds a lens, for example, the racks disclosed in Japanese Utility Model Publication No. 1-1246 and Japanese Utility Model Application Laid-Open No. 61-81634 are known. That is, actual fairness 1-12246
The lens rack disclosed in the above publication has three fluororesin support rods each having a plurality of V-shaped, U-shaped or inverted trapezoidal concave grooves provided in the outer periphery thereof along the longitudinal direction in a sawtooth shape. Are arranged side by side, and the lower surface and the left and right side surfaces of the lens are held at three points by the concave grooves of the support rods. On the other hand, a lens rack disclosed in Japanese Utility Model Laid-Open Publication No. 61-81634 has a lower support member for supporting a lower end portion of a lens, and a lens holding member for holding a lens supported by the lower support member between the lower support member. And a suspension member in which these two members are locked and a suspension portion is provided on the upper part.

[0003]

However, in the lens rack described in Japanese Utility Model Publication No. 1-12462, since both ends of all the support rods are fixed, lenses of various sizes having different lens diameters are held. It is necessary to prepare various racks according to the lens diameter. Therefore, there is a problem that the number of types of racks is increased and the management thereof is troublesome. Further, there is also a problem that the cleaning liquid easily remains in the concave groove of the support rod that supports the lower surface of the lens, and the remaining cleaning liquid is taken out to the next cleaning tank (in the case of a multi-tank cleaning method), thereby contaminating the next cleaning tank. there were.

In the lens rack described in Japanese Utility Model Laid-Open Publication No. 61-81634, a groove having at least one concave portion is provided in the lens supporting member corresponding to the thickness of the lens. As a result, not only the storage and management of the lens rack tend to be complicated, but also the cleaning liquid remains in the concave portion and the drainage is poor as in Japanese Utility Model Publication No. 1-1246.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to hold and clean lenses of various sizes having different lens diameters. An object of the present invention is to provide a lens rack capable of improving a draining effect.

[0006]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
In the present invention, the support rod is disposed so as to be orthogonal to the support rod.
And one end is fixed to the support rod, and the other end is the lower surface of the lens.
Vertically elastically deformable with support for supporting
Between the support member made of a simple wire spring and both sides of the lens.
A pair of left and right holding members to be held, and the one holding portion
The material is formed in a bar shape, laid horizontally on the rack body, and
Is a plurality of lenses formed at required intervals in the longitudinal direction.
The other holding member has elastic deformation in the holding direction.
It is composed of a flexible leaf spring and is pressed against the lens side at the upper end.
A holding plate to be provided.

[0007]

In the present invention, the support member for supporting the lower surface of the lens is formed of a thin wire spring, and the drainage of the cleaning liquid is good. In addition, the support member is elastically deformed in the up-down direction so that it can correspond to lenses of various sizes having different lens diameters. One of a pair of left and right holding members opposed to each other is fixed at both ends to hold a lens side surface by a lens holding groove provided on a peripheral surface. The other holding member is made of a leaf spring and elastically deforms in the holding direction, so that it can correspond to lenses of various sizes having different lens diameters. The holding plate provided on the other holding member is pressed against the lens side surface by the elastic force of the holding member, and presses the lens into the lens holding groove of the one holding member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is an external perspective view showing an embodiment of a lens rack according to the present invention, FIG. 2 is an enlarged sectional view taken along line II-II of FIG. 1, and FIG. It is. In the present embodiment, a maximum of 24 lenses 2 are held substantially vertically, and 12
This shows a case where the present invention is applied to a lens rack 1 housed in a row.

The lens rack 1 includes a rack body 5 formed by joining two types of frame members 3A, 3B, 4A, and 4B having different lengths and shapes in a rectangular frame shape. The material of the frame members 3A, 3B, 4A, 4B is not particularly limited, but it is preferable to use a material having excellent heat resistance, chemical resistance, etc., for example, a stainless steel rope. At each corner of the rack body 5, stepped portions 6 are integrally formed to protrude upward in order to improve space efficiency during storage or the like. Each of the stacked portions 6 is formed by extending the ends of the frame members 3A, 3B, 4A, and 4B upward. Therefore, two side plate portions 6a that are L-shaped in plan view and are orthogonal to each other. 6b, and a square rod body 7 is fixed inside thereof by brazing or the like.
The upper surface of the square rod body 7 is substantially flush with the upper surface of the stacked portion 6 and has an engaging projection 8 at the center of the upper surface, and an engaging recess 9 slightly larger than the engaging projection 8 is formed at the center of the lower surface. . When a plurality of lens racks 1 are stacked in a stack, the engaging projections 8 and the engaging recesses 9 of the upper and lower lens racks 1 are fitted to each other, so that the lens racks 1 can be moved forward, backward, left and right. This enables stable loading of the lens rack 1 and prevents the lens rack 1 from shifting or collapsing.

[0010] Of the frame members constituting the rack body 5, a support rod 1 is provided between a pair of short frame members 3A and 3B.
0 is suspended. This support rod 10 is provided with frame members 3A, 3A
B is fixedly inserted through an insertion hole provided at the center in the longitudinal direction of B, and twelve support members 14 for supporting the lower surfaces of the lenses 2 in each row in common are provided at regular intervals on the lower surface side.
Are arranged side by side in the longitudinal direction. The support member 14 is formed of a linear wire spring formed of stainless steel or the like. The annular portion 16 is bent at the center in the longitudinal direction, and the support portions 17A and 17B supporting the lower surfaces of the lenses of each row are bent at both ends. It is provided integrally by formation. The annular member 16 is set on the lower surface of the support rod 10 so that the support member 14 is substantially horizontal and orthogonal to the support rod 10.
, It is made elastically deformable in the vertical direction. The support portions 17A and 17B that support the lower surfaces of the lenses 2 in each row are bent in a Y-shape when viewed from the side as shown in FIG. 3 so that V-shaped grooves are formed in the support portions that support the lower surfaces of the lenses. 19. The support rod 10
The support member 14 and the support member 14 need not be strictly perpendicular to each other, and may be slightly inclined as long as the support of the lower surface of the lens is not hindered.

Between the pair of frame members 3A and 3B, a holding member 20 commonly used for the lenses 2 in each row is suspended. The sandwiching member 20 is formed in an abacus-shaped rod-like body with a fluororesin or the like, and has 12 V-shaped lens holding grooves 22 on the peripheral surface. The lens holding grooves 22 are formed at the same pitch as the arrangement pitch of the support members 14. In this case, the lens holding groove 22 is not limited to the V-shape, and may have various shapes such as a rectangular shape and a U-shape.

Further, a pair of left and right rods 24 and 25 are laid on both sides of the support rod 10 so as to be parallel to the pair of frame members 3A and 3B. Each of the rods 24 and 25 has a circular cross-section at both ends and a square cross-section at the center, and has a long hole formed in the pair of frame members 3A and 3B. 26,
27 are slidably inserted into each of them, and are fastened and fixed by nuts 28 screwed to the protruding ends thereof. In the center of each of the rods 24 and 25, a lens 2 of each row is provided.
Each of the holding members 30 for elastically holding the side surface along with the holding member 20 is attached.

The holding member 30 is formed by punching a metal plate having elasticity such as stainless steel into a comb-like shape, so that a fixed base 30A and a lower end thereof are connected to the fixed base 30A, and a central portion is outwardly convex. 6 folded into a V-shape
One elastic support leg 30B and a substantially horizontal mounting portion 30C provided at the upper end of each elastic support leg 30B are integrally formed, and the upper surface of each mounting portion 30C is formed by the elastic force of the elastic support leg 30B. A holding plate 32 which is pressed against the side surface of the lens and holds the lens 2 from both sides together with the lens holding groove 22 of the holding member 20 is screwed and fixed. The holding plate 32 is made of fluororesin or the like, and has a V-shaped lens receiving groove 33 for holding a lens side surface on an inner surface facing the holding member 20. Then, two holding members 30 configured as described above are arranged in parallel with each of the rods 24 and 25, and are fixed by set screws 35.

The lens holding groove 22 and the lens receiving groove 33
Is set smaller than the diameter of the smallest lens 2 to be stored and cleaned. This interval setting can be easily performed by loosening the nut 28, moving and adjusting the rods 24, 25 along the slots 26, 27, or rotating the rods 24, 25 around the central axis. When the support rods 24 and 25 are rotated around their central axes, the elastic support legs 3 when the lens 2 is held.
You can change the rebound of OB.

The lens rack 1 having such a configuration.
In storing the lens 2 in the rack 1, the elastic support leg 30B of the outer holding member 30 is opened outward, and the distance between the holding members 20 and 30 is set to be larger than the lens diameter. During this time, the lens 2 is inserted substantially vertically from above, and the lower surface of the lens 2 is
Place on 7A (or 17B). At this time, the maximum diameter portion of the lens 2 in the horizontal direction is the lens holding groove 22 and the lens receiving groove 3.
Preferably, the lens 2 is pressed against the support 17A (or 17B) so as to be slightly lower than 3, and the support 14 is elastically deformed downward. In this manner, the lens 2 is connected to the support member 14.
After the elastic support leg 30B is released and elastically restored after being placed on the support portion 17A (17B), the elastic support leg 30B
Due to the spring force, the lens receiving groove 33 of the holding plate 32 is pressed against the side surface of the lens 2 to hold the lens side surface together with the lens holding groove 22. Therefore, the lens 2 is stably held at the three points of the lower surface and the left and right sides, and is housed in the lens rack 1. Thereafter, the lens 2 is immersed in the cleaning liquid together with the rack 1 for a certain period of time, and is cleaned by the ultrasonic generator.

Thus, according to the lens rack 1 having such a configuration, since the lower surface of the lens is elastically supported by the support member 14 and one side surface of the lens 2 is elastically supported by the holding member 30, the lens diameters are different. Lenses 2 of various sizes can be accommodated at the same time, and the support member 14 is formed by a wire spring, so that the cleaning liquid runs out easily, accumulates on the lower surface of the lens and makes the lens 2 dirty, and can be used for multi-tank cleaning. When used, there is no danger of mixing in the next washing tank.

Although the above embodiment has been described with reference to a case where the present invention is applied to a lens rack for housing the lenses 2 in two rows, the present invention is not limited to this. It may be the above. In addition, the holding member 30
Are formed separately and two are provided on each of the rods 24 and 25, but it is needless to say that one may be constituted.

[0018]

As described above, according to the lens rack according to the present invention, since the lens is held at three points, the lens can be held stably and reliably, and the supporting member for supporting the lower surface of the lens is lined. The spring is used to clean the cleaning liquid very well, and the upper lens side is elastically held by the holding member, so that lenses of various sizes with different lens diameters can be held and stored at the same time. it can. Therefore, the types of lens racks can be reduced, and rack management is easy. In addition, when one of the holding members is formed of a rod-shaped body having a plurality of lens holding grooves on the peripheral surface and the other holding member is formed of a leaf spring that is elastically deformable in the holding direction, the lens can be easily attached and detached. Its practical effect is very large.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing one embodiment of a lens rack according to the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a diagram illustrating support of a lower surface of a lens by a support portion of a support member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lens rack 2 Lens 5 Rack main body 10 Support rod 14 Support member 17A, 17B Support part 20 Nipping member 22 Lens holding groove 24, 25 Bar 30 Nipping member 30B Elastic support leg 32 Nipping plate 33 Lens receiving groove

Claims (1)

(57) [Scope of request for utility model registration] 1. A support rod, which is arranged to be orthogonal to the support rod.
And one end is fixed to the support rod, and the other end is below the lens.
Vertically elastically deformable with support
A support member consisting of a linear spring and both side surfaces of the lens
A pair of left and right holding members for holding,
The member is formed in the shape of a bar, is laterally mounted on the rack body, and has a peripheral surface.
Has a plurality of lasers formed at required intervals in the longitudinal direction.
The other holding member has elastic deformation in the holding direction.
Composed of a free-form leaf spring, pressed against the side of the lens at the upper end
A lens rack provided with a holding plate to be used.