JP2003172906A - Template fitting tool and reference template - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a template fitting tool which is adaptive to at least two different kinds of standards and makes it possible to discriminate between them without confusion and a reference template which is adaptive to the template fitting tools of different kinds of standards and makes it possible to discriminate between them without confusion even as a reference template essential to correct the precision, etc., of a ball shape measuring instrument. <P>SOLUTION: The template fitting tool is equipped with positioning pins (engagement part) 213 and 213 corresponding to the positions of a positioning small hole (holding hole) 82 and an adjustment long hole (holding hole) of a template 80 determined by a standard and a cut part 206a, 206a, or 206b discriminated by standards and holds the template 80 of the standard. Further, the reference template is equipped with engagement holes (holding hole) 302 and 303, and 304 and 305 corresponding to the positioning pins (engagement part) 213 and 213 of at least two kinds of template fitting tools of different standards and a projection (projection part) 306a, 306a, or 307 engaging the cut part 206a, 206a, or 206b discriminated by the standards. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a template mounting tool used for measuring the shape of a template molded according to the target lens shape of an eyeglass frame by a target lens shape measuring apparatus, and a target lens shape measuring apparatus. The present invention relates to a reference template used to calibrate the accuracy and the like.

[0002]

2. Description of the Related Art Generally, in a spectacle frame, left and right lens frames are formed symmetrically. When processing a spectacle lens framed in this lens frame from a lens to be processed (circular unprocessed spectacle lens), a lens grinding processing device, a so-called ball slicing machine is used.

As this ball slicing machine, conventionally, there is one in which a lens to be processed is ground and shaped by using a template formed in a shape of a lens frame. That is, as a ball slicing machine, a pair of lens rotation shafts are attached to a vertically rotatable carriage, a lens to be processed is sandwiched between the one lens rotation shafts, and a template is attached to one of the lens rotation shafts. , A mold receiver with which the mold plate abuts is provided so that it can be adjusted up and down, and while controlling the lift of this mold receiver and rotating the lens rotation shaft, the processed lens between the pair of lens rotation shafts is arranged below it. There is a type in which the lens to be processed is ground by following the shape of the template by grinding with the grinding wheel.

In this case, the distance Li [i = 0, 1, 2, ..., N] between the lens rotation axis and the grinding wheel is the sum (vector sum) of the radius R of the grinding wheel and the radius ρi at the angle θi. The grinding process is performed so that

In recent years, the copying process using such a template is not performed, but the axial distance Li is controlled by using the lens shape information (θi, ρi) of the template and the lens frame to grind the lens to be processed. The ball shaving machine that is supposed to be used is common.

By the way, when the lens frame shape measuring device is used to read the lens shape information from the template, the template is attached to the template holder using the mounting holes provided in the template.

However, there are three types of template standards defined by ISO, and these standards also differ in the size of the holding holes for holding the template. For this reason,
In order to hold templates of different standards in the template holder, template holders corresponding to each standard are required.

FIG. 15 shows the form of the template.
FIG. 15A shows a template Tj widely used in countries other than the United States such as Japan and Europe, in which the size of the holding hole h1 is 2 × φ2.1 ± 0.025 (or 0) (m).
m), the distance La between the holding holes h1 and h1 is 16 ± 0.02
It is 5 (mm) (hereinafter, abbreviated as ISO standard template).

Further, FIG. 15 (b) shows a template Ta used in the United States in particular, in which the size of the holding hole h1 is 2 ×.
φ1.98 ± 0.05 (mm), the distance La between the holding holes h1 and h1 is 15.88 ± 0.05 (mm), and Amer
It is referred to as ican National Standard (hereinafter, abbreviated as ANS standard template). Figure 15
(C) is a template To used in other countries.

[0010]

In order to deal with the templates Tj, Ta, To, etc. of different standards in this way, template holders corresponding to the respective standards are required. If there is no identifying mark, it will be difficult to discriminate unless an expert is used.

Moreover, since the distance La between the holding holes 1 and 1 of the template plates Tj, Ta and To is close to each other, when trying to forcibly mount the ANS standard template holder to the ISO standard template, There is a risk that the template Tj, Ta, To or the template holder is damaged.

Further, also in the reference template required for calibrating the accuracy of the target lens shape measuring apparatus (lens frame shape measuring apparatus), the ISO standard template holder or the ANS standard template holder is used. It is desirable that any of the above can be mounted, and it is required that they can be accurately identified and correctly mounted without confusing the respective standards.

Therefore, a first object of the present invention is to provide a template mounting tool that can correspond to at least two different standards and can be identified without confusing them.

A second object of the present invention is also to use a standard template which is indispensable for calibrating the accuracy of the target lens shape measuring apparatus, in the same manner, each of the different template mounting tools of different standards. It is to provide a reference template that can be identified without being confused with the above.

[0015]

In order to achieve this first object, a template mounting tool according to the invention of claim 1 is provided with an engaging portion corresponding to a position of a retaining hole of the template determined by a standard. It is characterized in that it has a notch for identifying each standard and holds a template of the standard.

In order to achieve the above-mentioned second object,
The reference template of the invention according to claim 2 has a holding hole corresponding to each of the engaging portions of at least two types of template attachments of different standards, and a protrusion that engages with a notch portion identified for each standard. And a section.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [Embodiment 1] [Structure] An embodiment of a template holder according to the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a frame shape measuring device as a lens shape measuring device, and 2 is a lens for grinding a lens to be processed into a shape of an eyeglass lens based on eyeglass frame shape data from the frame shape measuring device 1. It is a sliding machine.

The ball shaving machine 2 has a processing portion (details not shown) for grinding the peripheral edge of the lens to be processed. In this processing section, a lens to be processed is held between a pair of lens rotation axes of the carriage, and the rotation of the lens rotation axis and the vertical rotation of the carriage are determined based on the above-mentioned lens shape information (θi, ρi). It controls and grinds the periphery of the lens to be processed with a rotating grinding wheel. Since this structure is well known, its detailed description is omitted.

As shown in FIG. 2, the frame shape measuring apparatus 1 has a measuring apparatus body 10 having an opening 10b at the center of an upper surface 10a and a switch section 11 provided on the upper surface 10a. The switch unit 11 includes a mode selector switch 12 for switching the left and right measurement modes, a start switch 13 for starting measurement, and a transfer switch 1 for data transfer.
Have 4.

Further, the frame shape measuring apparatus 1 has eyeglass frame holding mechanisms 15 and 15 'for holding the left and right lens frames LF and RF of the eyeglass frame MF and an operating mechanism 16 thereof. Since the frame holding mechanisms 15 and 15 'have the same structure, only one frame holding mechanism 15 will be described as shown in FIG. In FIG. 3, reference numerals 17 and 18 denote support frames fixed vertically to a chassis (not shown) in the measuring apparatus main body 10 and provided in parallel with each other, and 19 denotes an outer surface of the support frame 18 (support frame 17 Locking pin protruding from the opposite surface)
Reference numeral 20 is an arcuate slit provided in the upper end of the support frame 18, and reference numerals 21 and 22 are mounting holes provided in the support frames 17 and 18. The mounting holes 21 and 22 are located between the arcuate slit 20 and the locking pin 19, and the arcuate slit 20 is provided concentrically with the mounting holes 21 and 22.

(Operation Mechanism 16) The operation mechanism 16 includes an operation shaft 23 rotatably held in the mounting holes 21 and 22 of the support frames 17 and 18, and one end portion of the operation shaft 23 (end portion on the support frame 18 side). ), A rotary shaft 25 penetrating the support frame 18 and the front surface 10c of the measuring device main body 10, and a fixed gear (fixed integrally) on one end of the rotary shaft 25. The drive gear 26 and the rotary shaft 25 that mesh with each other.
Has an operating lever 27 attached to the other end of the. In the figure,
Reference numeral 23a is a flat portion provided on the operation shaft 23.
a is provided up to the vicinity of both ends of the operating shaft 23.

A concave portion 28 extending over the upper surface 10a and the front surface 10c is formed in the measuring device main body 10, an arcuate projection 29 is formed on the upper surface of the concave portion 28, and the upper surface 10a has a left and right side of the projection 29. "Open" and "Closed" are attached to the position. Then, the operation lever 2 described above is provided on the front surface of the recess 28.
7 is provided, and a bent portion provided on the upper end portion of the operation lever 27, that is, an indicating portion 27a moves on the protrusion 29.

A two-position holding mechanism for holding the frame (corresponding to the above-mentioned "closed") and releasing the frame-holding (corresponding to the above-mentioned "open") is provided between the driven gear 24 and the locking pin 19. (2
Position holding means) 30 is provided.

The two-position holding mechanism 30 includes the above-described arc-shaped slit 20, a movable pin 31 protruding from the side surface of the driven gear 24 and penetrating the arc-shaped slit 20, a movable pin 31, and a locking pin 19. A spring (tensile coil spring) 32 is interposed between the two. Since the arcuate slit 20 is concentric with the mounting holes 21 and 22 as described above, the driven gear 24 and the operating shaft 23 are also concentric. For this reason, the movable pin 31 has both ends 20a and 20b of the arcuate slit 20 by the tensile force of the spring 32.
Will be held in either one of.

Further, the operating mechanism 16 has a pair of cylindrical shafts 33, 33 held by the operating shaft 23 so as to be movable in the longitudinal direction and slightly rotatable in the circumferential direction. This cylinder shaft 3
3, the flat portion 33b of the circular insertion hole 33a and the operation shaft 23
As shown in FIGS. 3B and 3C, a slight gap S is formed between the flat portion 23a and the flat portion 23a. Cylinder shaft 33,3
3 is attached with a string-like body 34 (only one of which is shown in FIG. 3A) having an elastic portion that can expand and contract by its own elastic force. The cord-like body 34 has a spring 35 having one end fixed to the cylinder shaft 33 and a wire 36 connected to the other end of the spring 35.

(Frame holding mechanism 15, 15 ') Frame holding mechanism 1
Reference numeral 5 denotes a pair of movable frames 3 held in the measuring device main body 10 so as to be movable in the horizontal direction and relatively movable toward and away from each other.
7 and 37. Each movable frame 37 has a horizontal plate portion 38.
And a vertical plate portion 39, which is vertically connected to one end of the horizontal plate portion 38, is formed in a substantially L shape. And
A cylindrical shaft 33 is rotatably and immovably held in the vertical plate portion 39 in the axial direction.

As shown in FIG. 4, the frame holding mechanism 15 is fixed to the tension coil spring 40 interposed between the horizontal plate portions 38 and 38 and the center of the tip edge portion of the horizontal plate portion 38. The support plate 41, and a claw mounting plate 42 disposed between the vertical plate portion 39 and a portion of the horizontal plate portion 38 projecting upward.
Have. The claw attachment plate 42 is held by the support plate 41 and the vertical portion 39 so as to be rotatable around the shaft-shaped support protrusion 42c of the one side portion 42a. Incidentally, the illustration of the shaft-shaped support projection on the rear side of the claw mounting plate 42 is omitted.

At the tip of the other side portion 42b of the claw mounting plate 42, a shaft-like tapered taper holding claw 43 is projected as a first holding rod, and a rear end portion of the other side portion 42b of the claw mounting plate 42 is provided. A rear end portion of a shaft-shaped holding claw 44 serving as a second holding rod is rotatably held by a support shaft 45. The holding tab 44 has a base portion 44a formed in a rectangular plate shape (see FIG. 3D) and a tip portion formed in a tapered shape, and is rotated around a support shaft 45 to hold the holding tab. It is designed to relatively approach and separate from 43. Moreover,
The tip portion of the holding claw 44 and the claw mounting plate 42 form the support shaft 4
A torsion spring (not shown) wound around 5 is always urged to open.

Further, the vertical plate portion 39 is provided with an L-shaped engaging claw 46 which is located above the holding claw 44 and cooperates with the operating mechanism 16. An edge-shaped claw portion 46 a extending below the tip of the engaging claw 46 is engaged with the holding claw 44. As a result, when the other side portion 42b of the claw holding plate 42 is rotated upward about the one side portion 42a, the distance between the holding claws 43 and 44 is narrowed against the spring force of the torsion spring. ing.

As shown in FIG. 3D, the engaging claws 4
The edge claw portion 46 a of No. 6 engages with the substantially central portion of the holding claw 44. Further, between the engaging claw 46 and the cylinder shaft 33,
Idle pulley 4 rotatably held by the vertical plate portion 39
7 are provided. The above-described wire 36 is supported by the idle pulley 47, and the end portion of the wire 39 is positioned substantially at the center between the side portions 42a and 42b and fixed to the claw mounting plate 42.

The movable frames 37, 37 are covered with a frame guide member 48 on the side facing the movable frames 37, 37. The frame guide member 48 has a vertical plate portion 48a fixed to the tip of the horizontal plate portion 38, a horizontal plate portion 48b fixed to the upper end of the vertical plate portion 39, and a corner where the plate portions 48a and 48b are continuously provided. It has an inclined guide plate portion 48c that is continuously provided and inclines toward the horizontal plate portion 48b. An opening 48d is formed in the vertical plate portion 48a so as to correspond to the holding claws 43 and 44, and the holding claw 44 is projected from the opening 48d. Further, the tip of the holding claw 43 has the holding claws 44, 4
3 is fully open (see FIGS. 4 (a) and 4 (b))
Is located in the opening 48d.

The vertical plate portions 48a, 48a of the frame guide members 48, 48 provided on the movable frames 37, 37 are
The surfaces provided in parallel with each other and facing each other have holding surfaces. The holding surfaces of the pair of vertical plate portions 48a and 48a are relatively moved toward and away from each other as the movable frames 37 and 37 are moved toward and away from each other.

Further, the frame shape measuring device (lens shape measuring device) 1 includes a rim of a spectacle frame (spectacle frame) MF of spectacles (glasses), that is, a lens frame LF (RF) of the spectacle frame MF.
It has a shape measuring means for measuring the shape. This shape measuring means moves the feeler 50 along the bevel groove 51 of the spectacle frame F to set the moving position of the feeler 50 as the radius vector ρi with respect to the angle θi, that is, the lens shape information (θi, ρi) in the polar coordinate format. Can be asked as. Since a well-known structure can be adopted for this structure, detailed description thereof will be omitted. <Template holder Th> Also, the frame shape measuring device 1
Has a semi-cylindrical feeler 50a (see FIG. 10C) for measuring lens-shaped members such as the template 80 and the model lens of FIG. This feeler 50a is the feeler 50
It is used by switching to. As the feeler 50a, the feeler 50, and the switching mechanism thereof, the well-known one disclosed in the earlier application of the applicant of the present application can be adopted, and thus detailed description thereof will be omitted.

The template 80 is formed in a lens shape such as the shape of a lens frame of glasses (glasses) or the shape of a spectacle lens. As shown in FIGS. 13A and 13B, the template 80 has a holding hole 81 and a holding hole (through hole, shaft inserting hole) 81 for shaft insertion formed in the center thereof. It has positioning small holes (holding holes) 82 and adjustment elongated holes (positioning small holes, holding holes) 83 formed at the positions.

This template 80 is set between the frame guides 48, 48 provided on the movable frames 37, 37 of the frame shape measuring apparatus 1 by using the template holder Th shown in FIG. The shape can be measured by. This template holder Th is a frame guide 4 provided on the movable frames 37, 37 of the frame shape measuring apparatus 1.
It has a holder main body 100 arranged between 8 and 48, and a template mounting tool 200 attached to the holder main body 100. (Holder Main Body 100) As shown in FIGS. 6 and 7, the holder main body 100 includes a main body portion 104 in which a rib-shaped knob portion 103 elongated in the longitudinal direction is integrally formed on an upper wall 102 of a rectangular frame 101. And a substantially cylindrical fixed knob 10 rotatably held in the central portion of the knob portion 103.
5 and.

An insertion hole 106 for inserting a holding claw 44 which will be described later is formed in a wall surface extending in the longitudinal direction of the rectangular frame 101.
Are formed. A bulging projection 107 for positioning is formed at the center of one wall surface extending in the longitudinal direction so that the space between the insertion holes 106 projects outward.

The bulging projection 107 is adapted to engage with the notch 10d formed in the upper surface 10a to determine the mounting direction of the holder body 100. The notch 10d is open to the opening 10b and is provided between the frame guide members 48 arranged in parallel.

Further, in the opening edge portion of the rectangular frame 101, V-shaped notches 108 and 108 and W-shaped notches 109 and 109 that widen toward the opening edge portion corresponding to the insertion holes 106 and 106.
Are formed.

The notch 109a inside the W-shaped notch 109 (close to the bulging protrusion 107) faces the notch 108 and is held by the clamp pin (holding rod) of the old frame shape measuring apparatus 1. The notch 109b on the outer side of the W-shaped notch 109 is engaged with the clamp pin (holding rod) of the new frame shape measuring device 1.

On the wall surface of the rectangular frame 101 extending in the lateral direction, claw pieces 110 and 111 projecting from the opening edge are formed.

At the center of the upper wall 102, an opening 112 is formed which straddles the knob portion 103 and is exposed to allow rotation of the fixed knob 105.

A storage recess 113 for the template mounting member 200 is formed on one side of the knob 103. As shown in FIG. 9, the storage recess 113 includes a holding wall 113a facing each other, a storage wall 113b facing each other, and a step wall 113c provided between the walls 113a and 113b.

One holding wall 113a has a cutout 113d.
In addition, the elastic rib 113f having the engaging protrusion 113e protruding therefrom
And are formed. Further, an elastic rib (not shown) having the same shape as the elastic rib 113f is provided on the other holding wall 113a at a position facing the notch 113d of the one holding wall 113a, and is opposed to the elastic rib 113f on the one holding wall 113a. A notch 113d is formed. A bottom wall 113g is formed between the storage walls 113b.

The fixed knob 105 has an inner cylinder 114 coaxially. The inner cylinder 114 is formed with a holding cylinder portion 115 including a plurality of claws 115 a whose diameter can be changed by the rotation of the fixed knob 105. Further, a rib 116 extending in the longitudinal direction of the rectangular frame 101 is projected from the holding cylinder portion 115. The rotation range of the fixed knob 105 is such that the protrusion 117 provided on the fixed knob 105 has the knob portion 103.
It is regulated by contacting the inner wall of the.

The holder body 100 is shown in FIG.
As shown in (b) and (c), the frame guide member 4
When inserted between 8 and 48 in the order of FIGS. 6A, 6B and 6C, the holding claws 43 and 43 are engaged. Then, at this position, the holding claw 44 is inserted into the holder main body 100 through the insertion hole 108, and holds the holder main body 100 between the holding claws 43 and 44 (holding rods).

When the holder main body 100 is used, a holding member detecting means (not shown) detects and inputs a detection signal to an arithmetic control circuit (not shown), and an arithmetic control circuit (arithmetic means).
Instead of the filler 50, the template filler is brought into contact with the template 80 to measure the shape of the template 80. The structure of this template filler is Japanese Patent Application No. 8-32046.
Since the same well-known thing as No. 8 is adopted, detailed description is omitted. Instead of such automatic detection, it is also possible to employ the well-known type of manually erection type template filler as in Japanese Patent Application No. 2-113840. (Model Plate Mounting Tool 200) The template mounting tool 200 includes a resin base portion 201 held by the holder body 100.
It has a template engaging member 202.

This base portion 201 is shown in FIGS.
As shown in (a), FIG. 8 (b), and FIG. 8 (c), the base body 203 has a thick side surface and an oval planar shape.
And a cylindrical mounting base portion 204 provided in the central portion on the one surface 203a side of the base body 203. The other surface 203b of the base body 203 is formed flat. Further, the mounting base portion 204 has a circumferentially extending engagement groove 204a.
And a positioning engagement groove 204b that opens to the end surface and the peripheral surface is formed. The engaging groove 204a is formed with an engaging groove 204a having a V-shaped cross section. 20
3c and 203c are screw insertion holes provided at diagonal positions of the base body 203.

Further, the base body 203 has a structure shown in FIG.
As shown in (c) and (f), a rectangular pressing member arranging concave portion 205 opening to the substantially central portion of the surface 203b and a spring arranging spring arranged continuously in the pressing member arranging concave portion 205. A recess 206 is formed. The holding member disposing recess 205 has side wall surfaces 205a, 205a and a side wall surface 205b opposite to the spring disposing recess 206.

The base side of the template pressing member 207 is inserted into the pressing member disposing recess 205.
Side surfaces 207a, 207a of the template pressing member 207
Are side wall surfaces 205a, 2 of the depression 205 for arranging the pressing member.
Movement to the left and right is restricted by 05a.

A supporting projection 208 is formed at the base end of the template pressing member 207 so as to project toward the side wall surface 205b and come into contact with the side wall surface 205b. This support protrusion 2
The side surface 08 is formed in a semicircular shape, extends in a semicylindrical shape to the side surfaces 207a, 207a of the template pressing member 207, and serves as a rotation fulcrum of the template pressing member 207. Further, a spring holding projection 209 facing the spring mounting recess 206 is formed on the surface of the template pressing member 207 on the side opposite to the supporting projection 208.

Moreover, the template pressing member 207 has the tip end side protruding from the pressing member disposing recess 205. Further, the template pressing member 207 is provided with a template pressing surface 207 b that is inclined to the same side as the support protrusion 208 on the protruding portion from the pressing member disposing recess 205. The template pressing surface 207b has an arc-shaped cross section as shown in FIG. 8 (g).

In the spring arranging recess 206, the coil spring 2 interposed between the base of the template pressing member 207 and the inner side surface 206a of the spring arranging recess 206.
10 are provided. This coil spring 210
Has one end fitted and held by the spring holding projection 209, and the front end side of the template pressing member 207 is the support projection 2
The template pressing member 207 is rotationally biased so as to rotate around 08.

The template positioning member 202 has an oval plate 211 in plan view and a rectangular holding member insertion hole 212 provided in the center of the plate 211. The template pressing member 207 described above has a pressing member insertion hole 212.
Is projected from.

In addition, the template positioning member 202 is a pair of positioning pins (positioning protrusions, engaging portions) protrudingly provided on one surface of the plate 211 so as to sandwich the pressing member insertion hole 212. 213 and 213, and a pair of female screw parts 214 and 214 provided at diagonal positions of the plate 211. As shown in FIG. 10E, the plate 211 is fixed to the flat surface 203b of the base body 203 by screwing the fixing screw 215 inserted into the screw insertion hole 203c of the base body 203 into the female screw portion 214. It is fixed (see FIGS. 7 and 10D).

Further, the template positioning member 202 shown in FIGS. 9 (a) to 9 (c) has a specification discriminating portion 216 which is provided at both longitudinal end portions of the plate 211 in the width direction. The specification distinguishing portion 216 is composed of a pair (two) of notches (notch portions) 216a and 216a as shown in FIG. In addition, the template positioning member 202 shown in FIGS. 10A to 10C has one notch (notch portion) 21 provided at the center in the width direction of both ends in the longitudinal direction of the plate 211.
It has 3b as a specification distinction part.

In the template positioning member 202 shown in FIGS. 9A to 9C, the center-to-center distance (center interval) of the positioning pins 213 and 213 is the American specification (American standard ANS).
And the positioning pin 21.
The diameter of 3,213 is American specification (American standard AN
It is adapted to S).

Further, in the template positioning member 202 shown in FIGS. 10A to 10C, the center-to-center distance (center interval) of the positioning pins 213 and 213 is set to ISO (standard of Japan, Europe, etc.). Along with the combined distance (spacing), the positioning pin 21
The diameter of 3,213 is adjusted to ISO (standards of Japan, Europe, etc.).

The template positioning member 202 shown in FIGS. 9 and 10 is used.
, The positions where the pair of female screw portions 214, 214 are provided are the same. (Reference template 300) The template template 300 can be held by the template positioning member 202.

As shown in FIG. 11, the reference template 300 has a central pressing member insertion hole 301 and a pin engaging hole (holding hole) 3 formed with the pressing member insertion hole 301 interposed therebetween.
02, 303 and 304, 305 are formed. The arrangement direction of the pin engaging holes 302 and 303 is the pin engaging hole 3
It is orthogonal to the arrangement direction of 04 and 305.

The pin engaging hole 303 is the pin engaging hole 3
It is slightly elongated in the arrangement direction of 02, 303 and is a long hole. The pin engagement holes 305 are the pin engagement holes 304, 3
It extends slightly in the arrangement direction of 05 and becomes a long hole.

Moreover, the diameter of the pin engaging hole 302 is the same as the standard template 300 shown in FIG.
9) to be attached to the template positioning member 202 of FIG.
American specification (American standard ANS) positioning pin 2
13 is formed to have a diameter that allows engagement (fitting). Further, the opening shape of the pin engagement hole 303 is the same as that of the American specification (American standard ANS) of FIG. 9 in order to attach the standard template 300 to the template positioning member 202 of the American specification (American standard ANS) of FIG. The positioning pin 213 is provided so as to be immovably engaged (inserted) in the width direction, and the positioning pin 213 is provided in the longitudinal direction (pin engaging holes 302, 303).
Is formed in a size (length) that can be moved in the arrangement direction of. Further, as for the spacing between the pin engaging holes 302 and 303, the reference template 300 has the American specification (American standard ANS) of FIG.
Locating pins 213 of American specification (American standard ANS) shown in FIG.
213 is set to an interval at which engagement (fitting) is possible.

The diameter of the pin engaging hole 304 is the same as the standard template 300 according to the ISO standard of FIG. 10 (standards of Japan, Europe, etc.).
In order to attach it to the template positioning member 202 of FIG. 10, the positioning pin 213 of the ISO standard (standard of Japan, Europe, etc.) of FIG.
Is formed to have a diameter that allows engagement (fitting) without play.
Further, the opening shape of the pin engagement hole 305 is the reference template 300.
10 is attached to the template positioning member 202 of the ISO standard (standards of Japan, Europe, etc.) of FIG. 10, the positioning pin 213 of the ISO standard (standards of Japan, Europe, etc.) of FIG. 10 cannot move in the width direction. Is provided so that it can be engaged (inserted) with the positioning pin 213 in the longitudinal direction (the pin engagement hole 304,
It is formed in a size (length) that can be moved in the arrangement direction of 305). Further, the distance between the pin engagement holes 304 and 305 is set so that the standard template 300 is attached to the template positioning member 202 of the ISO standard (standard of Japan, Europe, etc.) of FIG. , European and other standard) positioning pins 213 and 213 are set at intervals at which they can be engaged (fitted).

Furthermore, the reference template 300 has pin engagement holes 302, 3 of American specifications (American standard ANS).
A specification distinction unit 306 is formed corresponding to 03. The specification distinguishing unit 306 includes a pair of protrusions (projections) 306a,
The protrusions 306a and 306a can be engaged with the notches 216a and 216a shown in FIG. 9 as shown in FIG. 14A.

Further, the reference template 300 has pin engagement holes 304, 305 of ISO standard (standards of Japan, Europe, etc.).
One protrusion (projection) 307 is formed as a specification distinguishing portion corresponding to each of the above. This protrusion 307 is shown in FIG.
One notch 216b of 0 can be engaged as shown in FIG. 14 (b).

Such protrusions 306a, 306b, 307
Are provided on both sides of the reference template 300, and whichever surface is used, it can be attached corresponding to the template positioning member 202 of FIGS. 9 and 10. [Operation] Next, the frame shape measuring device 1 having such a configuration
The action of will be explained. (1) Lens frame shape measuring frame guide member 48 of the spectacle frame, inclined guide plate portion 48 of the 48
c and 48c are inclined so that they open toward each other toward the upper end. Therefore, the spectacle frame MF of the spectacles (glasses)
Is arranged between the inclined guide plate portions 48c, 48c as shown in FIG. 4A and the spectacle frame MF is pushed down against the spring force of the coil spring 40, the inclined guide plate portions 48c, 48c
Due to the guiding action of 48c, the frame guide member 48,
The spacing of 48, that is, the spacing of the movable frames (slider) 37, 37 is widened, and the rim of the spectacle frame MF, that is, the lens frame LF (RF) of the spectacle frame MF is moved to the holding tabs 43, 43 and held. , 43.

In such a state, the operating lever 27
Is rotated from the "open" position to the "closed" position, this rotation is transmitted to the cylinder shaft 33 via the rotary shaft 25, the gears 26, 24, and the operation shaft 23, and a part of the spring 35 is partially rotated. 33
By being wound around, the claw mounting plate 42 is rotated upward about the one side portion 42a via the wire 36 connected to the spring 35, and the distance between the holding claws 43 and 44 is shown in FIG. As shown in FIG. 4C, the rim of the spectacle frame MF, that is, the lens frame LF (RF) of the spectacle frame MF is held between the holding tabs 43 and 44 as shown in FIG. 4C. At this position, the movable pin 31 is held by the lower end portion 20a of the arcuate slit 20 by the spring force of the spring 32.

When removing the rim of the spectacle frame MF, that is, the lens frame LF (RF) of the spectacle frame MF from between the holding claws 43 and 44, the operation lever 27 is operated in the opposite manner to each member. However, the operation is the reverse of the above. (2) Shape Measurement of Template 80 In order to measure the shape of the template 80 with the target lens shape measuring apparatus 1, the template 80 is first attached to the holding member 90.

When the template 80 is of American specification (American standard ANS), that is, the diameter of the holding hole 81 of the template 80, the distance between the positioning small hole 81 and the adjustment slot 82,
When the diameter of the positioning small hole 81 or the width of the adjustment long hole 82 is of the American specification (American standard ANS), the template positioning member 202 of the American specification (American standard ANS) of FIG. The fixing plate 15 inserted into the screw insertion hole 203c is screwed to the female screw portion 14 of the template positioning member 202 in accordance with the surface 203b of the template positioning member 202 of FIG. Fix it. At this time, the template pressing member 207 is projected from the pressing member insertion hole 212.

When the template 80 is of ISO (standard of Japan, Europe, etc.), that is, the holding hole 8 of the template 80 is used.
1 is the diameter, the distance between the positioning small hole 81 and the adjusting elongated hole 82, the diameter of the positioning small hole 81 or the width of the adjusting elongated hole 82 is ISO.
(Standards of Japan, Europe, etc.), I of FIG.
The template positioning member 202 of SO (standard of Japan, Europe, etc.) is aligned with the surface 203b of the base body 203, and the fixing screw 15 inserted into the screw insertion hole 203c is fixed to the template positioning member 20.
The template positioning member 202 of FIG. 10 is fixed to the base body 203 by being screwed onto the female screw portion 14 of No. 2. On this occasion,
The template pressing member 207 is projected from the pressing member insertion hole 212.

After this, the template positioning member 202 of the American specification (American standard ANS) of FIG.
, The template pressing member 2 of the template mounting member 200 is inserted into the pressing member insertion hole 301 of the reference template 300.
The front end of 07 is inserted, and the template pressing member 207 is pulled by the reference template 300 against the spring force of the coil spring 210, so that the positioning pins 213 and 213 of the template mounting tool 200 are moved to the reference template. Aligned with 300 American specification (American standard ANS) engagement holes 302 and 303. Then, the positioning pins 213 and 213 are attached to the reference template 30.
0 American specification (American standard ANS) engagement hole 30
2, 303, and a pair of notches 206a, 206a and 206a, 2 for the template positioning member 202.
06a is a set of two protrusions 306a of the reference template 300,
The reference template 300 is brought into close contact with the template positioning member 202 by engaging with the template pressing members 207, 306a and 306a, 306a respectively. This allows
The template pressing member 207 causes the reference template 300 to be engaged with the engagement pin 213 of the engagement hole 302 by the spring force of the coil spring 210.
It is pressed to the side to prevent the reference template 300 from coming off the template mount 200 as shown in FIG.

When the template positioning member 202 of ISO (standards of Japan, Europe, etc.) of FIG. 10 is attached to the template mounting tool 200, the template is inserted into the pressing member insertion hole 301 of the reference template 300. The position of the template mounting tool 200 is determined by inserting the tip of the template pressing member 207 of the fixture 200 and pulling the template pressing member 207 against the spring force of the coil spring 210 by the reference template 300. Pin 21
3, 213 are aligned with the ISO (standards of Japan, Europe, etc.) engagement holes 304, 305 of the reference template 300. Then, the positioning pins 213 and 213 are inserted into the engagement holes 304 and 305 of ISO (standards of Japan, Europe, etc.), and one notch 206b corresponding to the engagement hole 304 of the template positioning member 202 and One notch 20 corresponding to the engaging hole 305
6b is engaged with each of the protrusions 307 and 307 of the reference template 300 to attach the reference template 300 to the template positioning member 2.
02, and release the hand from the template pressing member 207.
As a result, the template pressing member 207 presses the reference template 300 toward the engagement pin 213 side of the engagement hole 302 by the spring force of the coil spring 210, and the reference template 300 becomes the template plate as shown in FIG. 12B. Prevents it from coming off the fixture 200.

As described above, the specification discriminating portion 216 is attached to the template positioning member 202 of the American specification (American standard ANS) of FIG.
A pair of notches 216a and 216b are provided, and the template positioning member 2 of the ISO standard (standard of Japan, Europe, etc.) of FIG.
02 is provided with one notch 216b as a specification distinguishing unit 216, and the protrusions 306a and 306a and the specification distinguishing unit are provided as the specification distinguishing unit 306 for distinguishing between American specifications (American standard ANS) and ISO standards (Standards such as Japan and Europe). By providing the protrusion 307 as a part, the template positioning member 202 attached to the template mounting tool 200 is of American specification (American standard ANS) or ISO standard (Japanese, European, etc. standard). Can be easily determined.

As a result, the positioning pins 213 and 213 provided on the template positioning member 202 of the American specification (American standard ANS) shown in FIG. 9 are set to the ISO standard (standard of Japan, Europe, etc.) of the standard template 300. 10 is prevented from being inserted into the pin engaging holes 304 and 305 of FIG.
The positioning pins 213 and 213 provided on the template positioning member 202 of the standard (standard of Japan, Europe, etc.) are used for the pin engagement holes 30 of the American specification (American standard ANS) of the reference template 300.
It is prevented from being inserted into the 2,303.

In order to hold the template mounting tool 200 to which the reference template 300 is mounted on the holder main body 100 in this manner, first, the fixed knob 105 is rotated to move the inner cylinder 1
The diameter of the holding tubular portion 115 formed of the plurality of claws 115a in 14 is increased. Next, in this state, the mounting base portion 204 of the template mounting member 200 is inserted into the holding cylinder portion 115, and the positioning engagement groove 204b of the mounting base portion 204 is formed in the rib 11.
6 to position the template mounting tool 200 in the mounting direction. After that, by rotating the fixed knob 105 to reduce the diameter of the holding cylinder portion 115, the holding cylinder portion 1
The plurality of claws 115a that form part 15 are engaged with the engagement grooves 204a of the mounting base portion 204, and the mounting base portion 204 is held.
Fix in 15. As a result, the template mounting tool 200 to which the reference template 300 is mounted is attached to the holder body 100.

The holder body 100 is shown in FIG.
As shown in FIG. 0 (a), after the frame guides 48, 48 provided on the movable frames 37, 37 are positioned between the inclined guide plate portions 48c, 48c, the inclined guide plate shown by the chain double-dashed line in FIG. 10 (b). The parts 48c, 48c are brought into contact with each other and pushed downward.
As a result, the holder main body 100 is moved to the inclined guide plate portion 48.
At the same time that the movable frames 37 and 37 are displaced downward by being guided by c and 48c, the movable frames 37 and 37 are moved and displaced in the directions in which they are separated from each other against the spring force of the tension coil spring 40.
As shown in (c), it is inserted between the frame guide members 48, 48 and engaged with the holding claws 43, 43.

Thereafter, the operation lever 24 is rotated in the "closed" direction, and this rotation is transmitted to the operation shaft 23, the drive gear 26, the driven gear 24, and the rotary shaft 25, and the spring of the cord-like body 34 is rotated. By winding 35 around the rotary shaft 35, the claw mounting plate 42 is inserted through the wire 36 of the cord-shaped body 34.
Is displaced upward. At this time, the holding claw 44 is restricted from moving upward by the engagement claw 46, and the holding claw 44 is rotated around the support shaft 45 toward the claw mounting plate 42 side.
The tip portion is inserted into the holder main body 100 through the insertion hole 108, and the holder main body 100 is held between the holding claws 43 and 44 (holding rods).

In this state, the feeler 50a of the frame shape measuring apparatus (lens shape measuring apparatus) 1 is brought into contact with the peripheral surface of the reference template 300 as shown in FIG. By moving along the peripheral surface of 300, the shape of the peripheral surface of the reference template 300 is changed to the feeler 5.
The moving position of 0a is obtained as the radius vector ρi with respect to the angle θi, that is, as the lens shape information (θi, ρi) in the polar coordinate format. Since the well-known one disclosed in the earlier application of the applicant of the present application can be adopted as the measuring mechanism and the measuring method by the feeler 50a, detailed description will be omitted.

Since the peripheral surface shape of the reference template 300, that is, the radius ρi from the center to the peripheral surface for each predetermined angle θi, is accurately formed, the reference template is used in the frame shape measuring device 1 as described above. By measuring the shape information (θi ′, ρi ′) of 300, the measured shape information (θi ′, ρi ′) of the reference template 300 is known in advance.
It is possible to know the measurement accuracy of the lens frame shape measuring device 1 by comparing with the shape information (θi, ρi) of
Based on this comparison, the measurement result by the lens frame shape measuring device 1 can be corrected or the lens frame shape measuring device 1 can be adjusted.

After the shape of the reference template 300 is obtained in this manner, the holder main body 100 is moved to the movable frame 37,
37, and remove the template 80 from the holder body 100.
Then, the shape of the peripheral surface of the template 80 is measured.

In this case, first, the front end portion of the template pressing member 207 of the template mounting member 200 is inserted into the holding hole 81 of the template 80, and the template 80 holds the template pressing member 207 in the spring of the coil spring 210. By pulling against the force, the positioning pins 213 and 213 of the template mounting tool 200 are aligned with the positioning small holes 82 and the adjustment elongated holes 83 of the template 80.
Then, after inserting the positioning pins 213 and 213 into the positioning small holes 82 and the adjustment elongated holes 83 of the template 80, the hands are released from the template pressing member 207. As a result, the template pressing member 207 is pressed by the spring force of the coil spring 210.
0 is pressed to the engagement pin 213 side of the positioning small hole 82,
As shown in FIGS. 13 (a) and 13 (b), the template 80 is the template mount 20.
Prevent it from slipping out of zero. FIG. 13 (a) shows the holding state of the American specification template 80, and FIG. 13 (b) shows I.
Indicates the holding state of SO standards (standards of Japan, Europe, etc.).

After this, the holder body 100 is processed in the same manner as described above.
Is held between the movable frames 37, 37. Then, the feeler 50 of the frame shape measuring device (target lens shape measuring device) 1
a is brought into contact with the peripheral surface of the template 80 as shown in FIG.
By moving the feeler 50a along the peripheral surface of the template 80, the shape of the peripheral surface of the template 80 is such that the moving position of the feeler 50a is the radius vector ρi with respect to the angle θi.
That is, it is obtained as the lens shape information (θi, ρi) in the polar coordinate format.

[0083]

As described above, according to the template mounting tool of the invention of claim 1, the engaging portion corresponding to the position of the holding hole of the template determined by the standard and the notch for identifying each standard. Since it has a part and holds the template of that standard, it corresponds to each of at least two different standards,
They can be identified without confusion.

Further, in the reference template of the invention described in claim 2, a holding hole corresponding to each of the engaging portions of at least two types of template attachments having different standards, and a notch portion for identifying each standard. Since it is configured with a protrusion that engages with,
Similarly, the reference template that is indispensable for calibrating the accuracy of the target lens shape measuring apparatus also corresponds to each of the different template attachments of at least different types of standards, and can be identified without confusion.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a relationship between a lens frame shape measuring device used in the present invention and a ball slicing machine.

FIG. 2 is an enlarged perspective view of the lens frame shape measuring device of FIG.

3A is a perspective view of a main part in the lens frame shape measuring device of FIG. 2, FIGS. 3B and 3C are cross-sectional views showing the relationship between the operation shaft and the cylinder shaft of FIG. 8A is an enlarged perspective view for explaining the relationship between the holding claw and the engaging claw of FIG.

4A to 4C are cross-sectional views for explaining the setting of the lens frame in the lens frame shape measuring device.

5A to 5C are cross-sectional views for explaining setting of the template holder in the lens frame shape measuring device.

FIG. 6 is a perspective view of the template holder of FIG. 5 when viewed from diagonally below.

FIG. 7 is a perspective view of the template holder of FIG. 5 when viewed from diagonally above.

FIG. 8 (a) is a side view of the template mounting tool of FIGS. 6 and 7;
(B) is a left side view of (a), (c) is a sectional view taken along the center of the positioning engagement groove of (b), (d) is a plan view of (b), and (e) is (A) Partial cross-sectional view of the part where the plate is attached to the base body, (f) is a cross-sectional view of essential parts when the base body of (b) is horizontally cross-sectioned in the vertical center, and (g) is a template. It is sectional drawing for description of the pressing surface of a pressing member.

9A is a plan view of a template positioning member of American specification, FIG. 9B is a side view of FIG. 9A, and FIG. 9C is a right side view of FIG. 9A.

10A is a plan view of a template positioning member of standards such as Japan and Europe, FIG. 10B is a side view of FIG. 10A, and FIG.
FIG.

11 (a) is a plan view of a reference template, and FIG. 11 (b) is (a).
Is a left side view, and (c) is a side view of the reference template of (a) viewed from below.

FIG. 12 (a) is a perspective view when a reference template is attached to a template positioning member of American specification, and (a) is a reference template attached to a template positioning member of standards such as Japan and Europe. FIG.

FIG. 13A is a perspective view of a template positioning member attached to an American specification template positioning member, and FIG. 13A is a template positioning member of a standard such as Japan or Europe when the template is mounted. FIG.

14A is an explanatory view for explaining the engagement relationship between the template positioning member and the reference template of FIG. 12A, and FIG. 14B is the template positioning member of FIG. 12B. It is explanatory drawing for demonstrating the engagement relation of a reference | standard template.

FIG. 15 (a) is an explanatory view of a template of standards such as Japan and Europe (Europe), (b) is an explanatory view of a template of American specifications, and (c) is used in a part of other countries. It is explanatory drawing of a template.

[Explanation of symbols]

80 ... Template 82 ... Positioning small hole (holding hole) 83 ... Adjusting slot (holding hole) 200 ... Template mounting tool 206a, 206b ... Notch 213 ... Positioning pin (engagement part) 300 ... Standard template 302 to 305 ... Engagement holes (holding holes) 306a, 307 ... Protrusion (protrusion)

Claims (2)

[Claims] 1. A mold comprising an engaging portion corresponding to the position of a template holding hole defined by a standard and a notch for identifying each standard, and holding a template of the standard. Plate attachment. 2. A holding hole corresponding to each of the engaging portions of at least two types of template attachments having different standards, and a projection portion engaging with a notch portion identified for each standard. Reference template to be.