JP2000347144A - Jig for processing spectacle lens and its supporting member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To subject a spectacle lens to piercing in a stable state after the easy execution of positioning is made possible. SOLUTION: The jig 1 for processing the spectacle lens used when the spectacle lens L is subjected to piercing has a bed 2 on which the spectacle lens L is placed, a horizontal direction fixing structure 3 which holds and fixes the spectacle lens L placed on the lens loading surface 20 of the bed 2 from the side and a longitudinal direction pressing structure 4 which presses approximately the central part of the spectacle lens L fixed by the horizontal direction fixing structure 3 in a longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eyeglass lens processing jig for perforating an eyeglass lens and a support member therefor.

[0002]

2. Description of the Related Art In the case of so-called frameless glasses, in which a glasses lens is usually directly attached to a hinge or a bridge without a lens frame, both sides of the glasses lens are subjected to perforation processing, and a perforated mounting hole is used. Hinges and bridges are fixed directly to the spectacle lens. To drill such a mounting hole, a dedicated drilling machine is used. A glasses lens is placed on a processing table of the drilling machine, and while operating with the operating rod with the other hand while supporting with one hand, rotating at high speed. The drill is lowered to thereby drill a hole in the eyeglass lens at a predetermined position.

[0003]

By the way, in the drilling operation in which the eyeglass lens is supported by one hand and the operating rod is operated by the other hand as described above, the drilling position cannot be accurately determined. In addition, if the user relaxes even a little during the drilling operation, the mounted glasses lens may be displaced, and it is very difficult and difficult to perform the drilling operation while preventing this.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional situation, and has been made in view of the above-mentioned circumstances. An object is to provide a processing jig and a supporting member thereof.

[0005]

According to the first aspect of the present invention,
An eyeglass lens processing jig used when performing perforation processing on an eyeglass lens, a base on which the eyeglass lens is mounted, and a glass lens placed on the lens mounting surface of the base and holding the eyeglass lens from the side. And a vertical pressing structure for vertically pressing a substantially central portion of the lens which is fixed by the horizontal fixing means.

According to the present invention, in a state where the glasses lens is mounted on the lens mounting surface of the base, first, the glasses lens is fixed on the base by the lateral fixing structure, and then the glasses are fixed by the vertical pressing structure. By pressing the substantially central part of the lens, the eyeglass lens is fixed three-dimensionally in both the horizontal and vertical directions, so that the base on which the eyeglass lens is fixed is mounted on a drilling machine such as a drilling machine. By performing the perforation processing by placing the lens on the processing table, the positioning of the perforation position and the perforation processing can be performed in a much more stable state as compared with the case where the spectacle lens is directly supported by hand.

According to a second aspect of the present invention, in the first aspect of the present invention, an elastic body for receiving a lens mounted thereon is provided on the lens mounting surface of the base. Things.

According to the present invention, since the spectacle lens is supported by the elastic body on the base, even if the pressing force in the vertical direction is excessive, the spectacle lens is absorbed by the elastic body, thereby preventing damage to the spectacle lens. Then, the lens can be securely fixed. Also, by making the drill tip of the drilling machine face the elastic body, the drill tip after piercing the glasses lens can be received by the elastic body without reaching the mounting surface of the base. Thus, the disadvantage that the base is damaged by the drill tip can be avoided.

The invention described in claim 3 is the first or second invention.
In the invention described above, the lateral fixing structure has a first holding member and a second holding member that are arranged opposite to each other across the lens mounting surface on the base to hold the glasses lens,
The first holding member is provided integrally with the base, while the second holding member is provided so as to be able to move forward and backward toward the first holding member, and moves the second holding member in the direction of the first holding member. First pressing means for pressing is provided, and the vertical pressing structure includes:
It is characterized by comprising a bridging member bridging between the first and second holding members, and a second pressing means provided at a central portion of the bridging member and pressing the glasses lens.

According to the present invention, the spectacle lens is mounted on the mounting surface of the base in a state in which the spectacle lens is arranged along the first holding member, and the second holding member is subsequently moved by the first pressing means. The glasses lens is in a state in which the movement in the horizontal direction is restricted on the base. Then, by operating the second pressing means of the bridging member to press the substantially central portion of the glasses lens downward, the glasses lens is fixed also in the vertical direction.

As described above, the horizontal movement of the glasses lens is prevented by using the first and second holding members and the first pressing means, and the movement in the vertical direction is also performed by using the bridging member and the second pressing means. By adopting the blocking structure, the structure of the processing jig is simplified, and the fixing operation of the eyeglass lens is facilitated, and the fixing is realized reliably.

According to a fourth aspect of the present invention, in the third aspect of the invention, the bridging member has a long groove formed by forming both ends in a forked shape, and is inserted through these long grooves. It is characterized by being bridged between the first and second holding members by fastening a screw.

According to the present invention, since the bridge member is bridged between the holding members by inserting a screw into the long hole, the first member and the second holding member are changed depending on the size of the glasses lens. Even if the lens holding distance changes, the bridging member can be fixed between the two holding members following the change, and the versatility is improved.

According to a fifth aspect of the present invention, there is provided a supporting member for supporting the lens processing jig according to any one of the first to fourth aspects when performing a perforating process on a spectacle lens. The fixed plate includes a fixed plate and a movable plate laminated on the fixed plate. The fixed plate has a guide concave portion that is recessed over the entire length in the width direction. The jig support groove has a front-rear dimension set so as to be slidably fitted in the guide recess, and has a jig support groove extending in the front-rear direction. The jig support groove is fitted into the base in a sliding contact state. It is characterized in that the groove width dimension is set so as to obtain.

According to the present invention, the lens processing jig comprises:
The movable plate, which is fitted in the jig support groove of the movable plate and can move forward and backward in the sliding direction in the direction in which the jig support groove extends, and the movable plate on which the lens processing jig is mounted is guided by the guide recess. Since the lens processing jig can move forward and backward in a sliding contact state in a direction orthogonal to the jig support groove, the lens processing jig can be located at an arbitrary position in the secondary surface within a predetermined range.

Therefore, by fixing the fixing plate of the support member to the processing bed of the drilling machine, the lens mounted on the lens processing jig can be moved to a predetermined position on the processing bed. , And the positioning of the eyeglass lens is easily performed.

[0017]

FIG. 1 is an exploded perspective view showing an embodiment of a lens lens processing jig according to the present invention. 2 and 3 are assembled perspective views, and FIG. 2 shows a state where the spectacle lens L is not mounted, and FIG. 3 shows a state where the spectacle lens L is mounted. As shown in these figures, a lens processing jig 1 includes a base 2 on which a glasses lens L is mounted, and a glass lens L mounted on a lens mounting surface 20 of the base 2 from the side. It has a basic structure including a horizontal fixing structure 3 for fixing the lens in a vertical direction, and a vertical pressing structure 4 for pressing the substantially central portion of the glasses lens fixed by the horizontal fixing structure 3 in the vertical direction.

The horizontal fixing structure 3 includes a first holding member 3 opposed to the base 2 with the lens mounting surface 20 interposed therebetween.
1 and a second holding member 32. First holding member 3
Reference numeral 1 is integrally fixed to the base 2, while the second holding member 32 is provided so as to be able to move forward and backward toward the first holding member 31. Further, the lateral fixing structure 3 has a second
First pressing the holding member 32 in the direction of the first holding member 31
A pressing means 33 is provided.

The first holding member 31 is shaped like a long rectangular parallelepiped, and is formed integrally with the base 2 so as to protrude upward along one edge of its surface. Guide holes 31a are formed in both sides of the first holding member 31 so as to extend horizontally in a direction orthogonal to the longitudinal direction of the first holding member 31 with the opening facing the lens mounting surface 20.

At a substantially central position in the longitudinal direction of the first holding member 31, a notch concave portion 34 formed by cutting an upper edge facing the lens mounting surface 20 downward over a predetermined length. Is recessed. This cut recess 3
At a position 4, a pair of longitudinally extending cylindrical bodies 35 projecting upward from the upper surface of the first holding member 31 by a predetermined dimension are provided upright. These cylindrical bodies 35 are provided with screw holes 35a having openings on the upper surface and extending in the vertical direction.

The second holding member 32 includes the first holding member 3
1 and has the same cut recess 34 and column 35 as described above. The surface of the second holding member 32 facing the first holding member 31 has the first
A pair of guide rods 36 in the longitudinal direction that are slidably inserted into the guide holes 31a of the holding member 31 are provided in a protruding manner. A coil spring 36a is fitted into each of the guide rods 36, and each of the guide rods 36 is
In the state where the first holding member 31 is fitted, the first holding member 31 is urged on the base 2 in a direction away from the first holding member 31 by the urging force of the coil spring 36a.

The first pressing means 33 is a stopper 37 fixed to an end surface of the base 2 opposite to the end surface on which the first holding member 31 is formed, and is screwed to the stopper 37. And a pressing bolt 38. The stopper 37 is
It comprises a stop plate 37a made of a metal plate whose vertical dimension is set to the thickness of the base 2, and a rectangular parallelepiped stop block 37b integrally extended at the center upper edge of the stop plate 37a.

A pair of insertion holes 37c are formed in the stopper plate 37a in the longitudinal direction, and a screw hole 21 corresponding to the insertion hole 37c is screwed into an edge of the base 2, and a screw 37d is provided. Are inserted into the respective insertion holes 37c and screwed and fastened to the screw holes 21 so that the stoppers 37 are fixed to the base 2.

Further, a bolt hole 37e into which the pressing bolt 38 is screwed in a threaded manner is screwed into the stop block 37b. The bolt hole 37e is formed in the second holding member 32.
The pressing bolt 38 is screwed into the bolt hole 37e so that the tip of the pressing bolt 38 comes into contact with the second holding member 32.

The pressing bolt 38 includes a bolt body 38a.
And a knob 38b larger in diameter than the bolt body 38a, which is concentrically fixed to the base end side of the bolt body 38a. At the tip of the bolt body 38a, a round cylindrical piece 38c having a smaller diameter than that of the bolt body 38a is provided. The bolt body 38a is screwed into the bolt hole 37e to be inserted into the cylindrical piece 38.
c is fitted into the receiving recess 32a, whereby the pressing of the second holding member 32 by the cylindrical piece 38c when the pressing bolt 38 is tightened is performed stably.

The vertical pressing structure 4 includes first and second pressing structures.
A bridging member 41 bridged between the sandwiching members 31, 32, a pressing screw 42 as a second pressing means attached to the center of the bridging member 41, and the bridging member 41
It comprises a pair of thumb screws 43 for fixing to the first and second members 32, and a pair of interposition plates 44 interposed between each of the holding members 31, 32 and the bridging member 41. Each interposed plate 44 has an insertion hole 44a corresponding to the screw hole 35a of each pair of cylindrical bodies 35.
And a screw hole 44b for screwing the thumbscrew 43 is screwed in the center. Then, a screw 44c is passed through each of the insertion holes 44a, and the screw holes 3 of the cylindrical body 35 are formed.
5a, the interposed plate 44 is attached to each of the holding members 3.
1, 32.

The bridge member 41 has a pressing screw 4 at the center.
A screw hole 41a for screwing the screw 2 is screwed, and has a long groove 41b formed by cutting from the edge toward the screw hole 41a on both sides, and the thumb screw 4
3 into the screw hole 44 of the interposition plate 44 through the long groove 41b.
By screwing and fastening to b, the bridge member 41 is bridged between the first and second holding members 31 and 32 via the interposition plate 44. In addition, the long groove 41b
Since the thumbscrew 43 is screwed to the interposition plate 44 via the lens, the distance between the first and second holding members 31, 32 can be made to correspond to the size of the glasses lens L.

The pressing screw 42 is made of a synthetic resin, and is screwed into the screw hole 41a in a state where the bridging member 41 is bridged between the pair of holding members 31 and 32, so that the lower end portion is elastic member 22. The length dimension is set so as to abut on the upper surface of the central portion of the glasses lens L mounted thereon. By making the pressing screw 42 made of a synthetic resin, the lens L is not damaged even if its tip hits the lens L. When a metal screw is used as the pressing screw 42, it is preferable that the distal end surface be formed into a smooth hemisphere or coated with rubber or synthetic resin.

In the present embodiment, a pair of rubber-like or soft synthetic resin-made semicylindrical elastic members 22 are attached to the lens mounting surface 20 of the base 2 in parallel with each other in the width direction. The lens L is placed on the elastic body 22.

According to the lens processing jig 1 having the above structure, as shown in FIG. 2, the lens processing jig 1 assembled with the bridging member 41 removed is placed on the elastic body 22 of the lens processing jig 1. With the eyeglass lens L placed, first, the knob 38b
To move the pressing bolt 38 forward, and the second holding member 32
In the direction of the first holding member 31.

Then, the glasses lens L is
Above, it becomes the state pinched between each pair of columnar bodies 35 of the 1st and 2nd pinching members 31 and 32. In this state, the bridging member 41 is inserted between the interposed plates 44 of the sandwiching members 31, 32, and the thumb screw 43 is screwed into the screw hole 44b of the interposed plate 44 through the long groove 41b of the bridging member 41 and fastened. By doing so, the eyeglass lens L is mounted on the lens processing jig 1 as shown in FIG.

Then, the eyeglass lens L is provided to the drilling machine while being supported by the support member in a state of being mounted on the lens processing jig 1, and the eyeglass lens L supported by the support member is perforated. . FIG. 4 is a perspective view showing an embodiment of a support member, (a) is an exploded perspective view,
(B) is an assembly perspective view. As shown in FIG. 4, the support member 5 includes a fixed plate 51 fixed on a processing bed of a drill press, and a movable plate 52 stacked on the fixed plate 51 so as to be movable in one direction. In the present embodiment, the fixed plate 51 and the movable plate 52 have the same thickness.

The front-rear direction (Y-Y direction) of the fixed plate 51
Is provided with a square groove-shaped guide recess 53 which is recessed over the entire length in the width direction. This guide recess 5
3 has a groove width dimension (dimension in the YY direction) that is slightly larger than the front-rear dimension of the movable plate 52, whereby the movable plate 52 is fitted into the guide recess 53, and It can be moved forward and backward in the width direction (XX direction). The guide recess 53 has a groove depth set to be less than half the thickness of the fixed plate 51.

At the center of the movable plate 52 in the width direction, a jig support groove 54 in the form of a square groove which is recessed over the entire length in the front-back direction.
Is provided. The jig support groove 54 has a groove width dimension (dimension in the XX direction) corresponding to the base 2 of the lens processing jig 1.
Is slightly larger than the width dimension of the lens processing jig, so that the lens processing jig 1 can be moved forward and backward in the front-rear direction while the base 2 is fitted in the jig support groove 54.

According to the structure of the support member 5, the movable plate 52 is fitted into the guide recess 53 of the fixed plate 51, the two are laminated, and the state shown in FIG.
By fitting the base 2 into the jig support groove 54, the lens processing jig 1 is mounted on the support member 5. Then, in this state, the lens processing jig 1
Can be moved back and forth along the jig support groove 54, and the lens processing jig 1 can be moved in the width direction by moving the movable plate 52 in the width direction along the guide recess 53. Therefore, the lens processing jig 1
Can be moved to an arbitrary position on the secondary surface in a state where the rotation about the virtual vertical axis is restricted (that is, in a state where the posture is set).

FIG. 5 is a perspective view showing a state in which the supporting member 5 is fixed to the drilling machine 6. As shown in this figure, the support member 5 is mounted on the drilling machine 6 by fixing the fixing plate 51 on the processing bed 61 of the drilling machine 6 with screws or the like.

When the eyeglass lens L is pierced, the base 2 of the lens processing jig 1 on which the eyeglass lens L is mounted is fitted into the jig support groove 54 of the movable plate 52. The jig 1 is moved back and forth and left and right so that the tip of the drill 62 is positioned so as to face a preset drilling position of the glasses lens L. Then, by operating the operation lever 63 to lower the drill 62 rotating at a high speed, the eyeglass lens L is perforated.

When the drilling process is performed on the eyeglass lens L by the drilling machine 6, the left and right eyeglass lenses L may be laminated in advance so that the front and back surfaces or the back surfaces may be in contact with each other and mounted on the lens processing jig 1. Good. By doing so, the perforated positions of the left and right eyeglass lenses L are aligned without any displacement.

When a plurality of lenses L of the same size are to be perforated, the plurality of lenses are stacked so that the front and back surfaces are in contact with each other and mounted on the lens processing jig 1. In addition, a hole can be formed in each lens L so that there is no variation among the plurality of lenses L.

[0040]

According to the first aspect of the present invention, with the glasses lens mounted on the lens mounting surface of the base, the glasses lens is first fixed on the base by a lateral fixing structure,
Subsequently, the lens is fixed three-dimensionally in both the horizontal and vertical directions by pressing the substantially central portion of the lens with the vertical pressing structure. Is placed on the processing table of a drilling machine such as a drilling machine, and the drilling process is performed. Processing can be performed.

According to the second aspect of the present invention, since the elastic body for receiving the spectacle lens is provided on the lens mounting surface of the base, the spectacle lens is supported by the elastic body on the base, so that the vertical direction is obtained. Even if the pressing force is excessive, it is absorbed by the elastic body, and the lens can be securely fixed while preventing the lens from being damaged. Also, by making the drill tip of the drilling machine face the elastic body, the drill tip after piercing the glasses lens can be received by the elastic body without reaching the mounting surface of the base. Thus, the disadvantage that the base is damaged by the drill tip can be avoided.

According to the third aspect of the present invention, the eyeglass lens is placed on the mounting surface of the base in a state of being along the first holding member, and then the second holding member is moved by the first pressing means. By sandwiching the eyeglass lens, the movement of the eyeglass lens on the base in the horizontal direction can be restricted. Then, by operating the second pressing means of the bridging member to press the substantially central portion of the glasses lens downward, the glasses lens can be fixed in the vertical direction.

As described above, the horizontal movement of the glasses lens is prevented by using the first and second holding members and the first pressing means, and the movement in the vertical direction is also performed by using the bridging member and the second pressing means. By adopting such a configuration, the structure of the processing jig can be simplified, and the eyeglass lens can be easily and reliably fixed.

According to the fourth aspect of the present invention, the bridging member is bridged between the holding members by inserting a screw into the long hole, so that the first and second holding members depend on the size of the glasses lens. Even if the lens holding distance between the members changes, the bridging member can be fixed between the two holding members following the change, and the versatility of the lens processing jig can be improved.

According to the fifth aspect of the present invention, the lens processing jig can be moved forward and backward in a sliding contact state in the extending direction of the jig support groove while being fitted into the jig support groove of the movable plate. At the same time, since the movable plate itself can also be slid in the direction perpendicular to the jig support groove while being guided by the guide recess, the movable plate itself can be freely moved in the secondary plane. Can be set at any position.

Therefore, by fixing the fixing plate of the support member to the processing bed of the drilling machine, the lens mounted on the lens processing jig can be moved to a predetermined position on the processing bed. Thus, the positioning of the glasses lens can be easily performed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a glasses lens processing jig according to the present invention.

FIG. 2 is an assembled perspective view of the lens processing jig shown in FIG. 1, showing a state in which no eyeglass lens is attached.

FIG. 3 is an assembled perspective view of the lens processing jig shown in FIG. 1, showing a state in which an eyeglass lens is mounted.

FIG. 4 is a view showing an embodiment of a support member, and FIG.
Is an exploded perspective view, and (b) is an assembled perspective view.

FIG. 5 is a perspective view showing a state in which a support member is fixed to a drilling machine.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 lens processing jig 2 base 20 lens mounting surface 21 screw hole 22 elastic body 3 lateral fixing structure 31 first holding member 32 second holding member 33 first pressing means 34 cut recess 35 cylindrical body 36 guide rod 37 Stopper 38 Pressing bolt 4 Vertical pressing structure 41 Cross-linking member 42 Pressing screw 43 Thumb screw 44 Interposition plate 5 Support member 51 Fixing plate 52 Movable plate 53 Guide recess 54 Jig support groove 6 Drilling machine 61 Work bed 62 Drill 63 Operation lever L glasses lens

Claims (5)

[Claims] An eyeglass lens processing jig used for perforating an eyeglass lens, comprising: a base on which the eyeglass lens is mounted; and a spectacle lens mounted on the lens mounting surface of the base. A spectacle lens, comprising: a horizontal fixing structure for holding and fixing the lens from the side; and a vertical pressing structure for pressing a substantially central portion of the eyeglass lens fixed by the horizontal fixing structure in a vertical direction. Jig for processing. 2. An eyeglass lens processing jig according to claim 1, wherein said lens mounting surface of said base is provided with an elastic body for receiving a mounted lens. 3. The horizontal fixing structure includes a first holding member and a second holding member that are opposed to each other across the lens mounting surface on the base for holding the glasses lens. The holding member is provided integrally with the base, while the second holding member is provided so as to be movable forward and backward toward the first holding member, and presses the second holding member in the direction of the first holding member. A first pressing means is provided, and the vertical pressing structure includes a bridging member bridged between the first and second sandwiching members, and a second pressing provided at a central portion of the bridging member to press the glasses lens. 3. The jig for processing a lens according to claim 1, wherein said jig is a lens. 4. The bridging member has long grooves formed by forming both ends in a bifurcated shape, and bridging between the first and second holding members by fastening a screw inserted through these long grooves. The jig for processing an eyeglass lens according to claim 3, wherein the jig is processed. 5. A supporting member for supporting the lens processing jig according to claim 1, wherein a hole is formed in the lens for eyeglasses, the fixing plate being fixed to a processing bed of a hole drilling machine. A movable plate laminated on the fixed plate, wherein the fixed plate has a guide recessed recessed over the entire length in the width direction, and the movable plate is slidable in the width direction. The jig support groove has a front and rear dimension set so that it can be fitted into the recess, and has a jig support groove extending in the front and rear direction, and the jig support groove has a groove width dimension so that the base can be fitted in a sliding contact state. A support member for a lens processing jig, wherein