JP2008096225A - Balance inspection device of eyeglasses - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weight balance inspection device of eyeglasses capable of easily and intelligibly inspecting balance not only in the front and back directions but also in the right and left directions. <P>SOLUTION: The device includes a table 20 supported tiltably by using a reference point P as a fulcrum, a switch 31 for detecting tilting of the table, a control part 30 for lighting a lamp 32 in the tilting direction, and a support member 22A of a bridge part for specifying so that the eyeglasses 100 are placed in the state where its proper position G of the center of gravity agrees with the reference point P. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a weight balance inspection apparatus for spectacles.

  The position of the center of gravity of the glasses is a very important factor because it affects the sense of stability and the feeling of wearing when the glasses are worn. Since the weight balance of the spectacles changes when the left and right lenses are fitted to the frame, it is desirable to adjust the balance after fitting the lens to the frame and then simply fitting as necessary. As described above, it is considered to adjust the balance of the spectacles by attaching a balance weight to the temple portion of the spectacles.

  By the way, as a method for confirming the center of gravity of spectacles in the prior art, Patent Document 1 discloses a method of obtaining by calculation, or measuring a load of a nose part fulcrum and an ear part fulcrum with a scale and calculating based on it. ing.

  Patent Document 2 discloses a center of gravity observing tool for spectacles as shown in FIG. FIG. 12 shows a schematic configuration of the center-of-gravity observing tool described in Patent Document 2.

  The center-of-gravity observing tool 200 is formed in a substantially rectangular plate shape, and has an eyeglass placement plate 201 having an eyeglass placement portion 202 in which the eyeglasses 250 are placed with the lens side 251 facing one side 201a in the upper center portion. And on the lower side of the spectacles mounting plate 201, the linear center of gravity 205 corresponding to the substantially central position of the one side 201a of the spectacles mounting plate 201 and the one side 201b on the opposite side is provided. A fulcrum member 210, and a mark 207 is formed on the linear center of gravity 205 of the eyeglass placement portion 202 so as to match the center of gravity of the eyeglasses having a center of gravity in the center of the longitudinal length. Is.

  When the center-of-gravity observing tool 200 is used, the eyeglasses 250 to be inspected are placed on the eyeglass placement unit 202 according to the mark 207. Then, as indicated by the arrows, the deviation of the center of gravity of the spectacles 250 in the front-rear direction is visually observed depending on which direction the spectacles mounting plate 201 is tilted.

JP 2004-184819 A No. 3115798

  By the way, the weight balance of the glasses is important in the left-right direction, but the conventional eyeglass center-of-gravity observation tool 200 shown in FIG.

Moreover, when measuring and calculating using a balance as in the prior art, there is a problem that it takes time and labor for measurement and calculation. In addition, after calculating the position of the center of gravity and adjusting the balance based on the calculated position, if the user wishes to further confirm the weight balance, the same operation is required again. In fact, when it is assumed that the inspection is performed at an eyeglass store, it is necessary not only for the store clerk but also for the customer to make it easier to understand.

  In view of the above circumstances, an object of the present invention is to provide a weight balance inspection apparatus for glasses that can easily and easily inspect not only the front-rear direction but also the left-right balance.

  According to the first aspect of the present invention, a table in which one point on the placement surface is defined as a reference point indicating an appropriate center of gravity position of the glasses, and the center of gravity of the object placed on the placement surface is deviated from the reference point. The balance detection means for detecting the deviating direction, and the spectacle placement which is provided on the placement surface and designates the spectacles which are the objects to be inspected to be placed at a predetermined position with the temple opened. It is characterized by comprising position specifying means, and display means for performing display indicating a direction in which the center of gravity of the glasses is off or a portion requiring weight balance adjustment based on the detection result of the balance detection means.

  The invention according to claim 2 is the weight balance inspection apparatus for glasses according to claim 1, wherein a plurality of light sources are arranged as the display means so as to be positioned around the glasses placed on the table. It is characterized by having.

  According to a third aspect of the present invention, there is provided the weight balance inspection apparatus for spectacles according to the first or second aspect, wherein the table is supported so as to be tiltable in all directions with the reference point as a fulcrum, and as the balance detecting means. Further, the present invention is characterized in that a detecting means for generating an electric signal corresponding to the tilting direction of the table is provided.

  According to a fourth aspect of the present invention, there is provided the weight balance inspection apparatus for spectacles according to the third aspect, wherein the detecting means includes a plurality of detection means provided at a lower portion of the table around the reference point and spaced in the circumferential direction. A switch is arranged, and when the table is tilted more than a predetermined value, the switch disposed in the tilted direction is turned on.

  The invention according to claim 5 is the weight balance inspection apparatus for eyeglasses according to claim 3, wherein an inclination sensor capable of outputting a signal corresponding to the inclination direction of the table is attached to the table as the detection means. It is characterized by that.

  According to a sixth aspect of the present invention, in the weight balance inspection apparatus for spectacles according to the first or second aspect, an electrical signal corresponding to a load applied to the table is generated on the lower surface of the table as the balance detecting means. Detection means is provided, and the detection means is constituted by a plurality of load detection elements arranged around the reference point at intervals in the circumferential direction.

  The invention according to claim 7 is the weight balance inspection apparatus for glasses according to any one of claims 1 to 6, wherein the balance detection means includes a degree of deviation of the center of gravity of the object from the reference point. And the display means displays the degree of deviation of the center of gravity of the object from the reference point.

  The invention of claim 8 is the spectacle weight balance inspection device according to any one of claims 1 to 7, wherein the reference point is set at the center of gravity of the table.

  The invention of claim 9 is the weight balance inspection apparatus for glasses according to any one of claims 1 to 8, wherein the planar shape of the table is formed in a substantially circular shape, and the reference point is a plane of the table. It is characterized by being set at the geometric center of the shape.

  The invention of claim 10 is the weight balance inspection apparatus for glasses according to any one of claims 1 to 8, wherein the planar shape of the table is formed in a substantially circular shape, and the reference point is a plane of the table. The spectacle placement position specifying means is provided so that the spectacles are placed with the front portion facing the position where the distance from the center of the table is the shortest distance due to the eccentricity. It is characterized by that.

  The invention of claim 11 is the eyeglass weight balance inspection apparatus according to any one of claims 1 to 10, wherein the table is provided with means for adjusting its own weight balance. It is said.

  A twelfth aspect of the present invention is the spectacle weight balance inspection apparatus according to any one of the first to eleventh aspects, wherein the spectacles mounting position specifying means includes glasses on the mounting surface of the table. The feature is that the figure which I imaged is drawn.

  According to a thirteenth aspect of the present invention, in the weight balance inspection apparatus for spectacles according to the twelfth aspect, the position of a graphic image of the spectacles can be adjusted.

  The invention of claim 14 is the spectacle weight balance inspection apparatus according to any one of claims 1 to 13, wherein the spectacles placement position specifying means is configured to place spectacles on the placement surface of the table. A support member on which the bridge portion is placed is provided.

  According to the first aspect of the present invention, in the state where the eyeglasses to be inspected (finished eyeglasses in which the lens is fitted to the frame) is placed on the table, the off-direction of the center of gravity of the eyeglasses is detected by the balance detecting means, Based on the measurement result, the display means shows the direction of the center of gravity of the eyeglasses or the part that needs weight balance adjustment, so whether the center of gravity is deviated from the proper position, the center of gravity deviated in any direction, front, back, left, or right It can be easily confirmed whether it is present. Accordingly, not only the front / rear balance but also the left / right balance can be adjusted.

  In addition, since the direction of the eccentricity of the center of gravity is determined by detecting the balance detecting means, it is immediately different from observing the inclination of the table (glasses mounting plate) on which the glasses are placed as in the prior art. Therefore, it is possible to accurately determine the direction in which the center of gravity is shifted, and it is easy to adjust the balance. Therefore, it is possible to adjust the weight balance of the glasses while showing it to the customer at the store of the eyeglass store or the like, and being satisfied with the customer.

  Further, at the time of inspection, glasses can be placed on the table, and the weight of the balance weight attached to the modern part of the glasses frame can be selected according to the display on the display means, for example. In this case, the measurement result can be approximated only by placing the balance weight on the table in the vicinity of the part where the balance weight is to be attached (for example, the modern part) without directly fixing the balance weight to the spectacle frame. Accordingly, it is possible to efficiently select an appropriate balance weight and improve convenience at the store.

  According to the invention of claim 2, it is possible to immediately understand the direction in which the center of gravity is shifted depending on the lighting condition of the light source.

  According to the third aspect of the invention, since the inclination of the table due to the deviation of the center of gravity is electrically detected, the balance inspection can be realized with a simple configuration.

  According to the fourth aspect of the invention, since the inclination of the table is detected by the plurality of switches, the electric circuit can be configured easily.

  According to the invention of claim 5, since the inclination of the table is detected by the inclination sensor, a simple structure can be achieved.

  According to the sixth aspect of the present invention, since the uneven distribution of the load acting on the table is detected by the plurality of load detection elements, the structure can be simplified.

  According to the seventh aspect of the present invention, since the degree of deviation of the center of gravity (degree of eccentricity) can be known, it is possible to easily select a balance weight for balance adjustment. Note that the degree of deviation of the center of gravity can be notified by changing the luminance of the lamp or changing the numerical value to be displayed.

  According to the invention of claim 8, since the reference point is set at the center of gravity of the table, the support structure of the table can be simplified and an accurate inspection can be performed.

  According to the ninth aspect of the present invention, since the reference point is set at the center of the substantially circular table, the design, production and assembly can be simplified.

  According to the invention of claim 10, the reference point is set at a position eccentric from the center of the substantially circular table, and the glasses are placed with the front portion facing the position where the distance from the periphery of the table is the shortest. As a result, the planar dimensions can be reduced.

  According to the invention of claim 11, since the weight balance adjusting means is provided on the table itself, adjustment at the time of assembly and calibration at the time of measurement can be simplified.

  According to the twelfth aspect of the invention, when inspecting, it is only necessary to place glasses along the image figure on the table, so that the inspection can be performed easily.

  According to the invention of claim 13, since the position of the image figure can be changed, it is possible to easily cope with the change of the proper gravity center position.

  According to the invention of claim 14, as the spectacle placement position specifying means, the support member for placing the bridge portion of the spectacles is provided on the table placement surface, so that the spectacles are set on the table in a stable posture at a predetermined position. can do.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The weight balance inspection devices K1 to K5 for glasses according to each embodiment described below with reference to FIGS. 1 to 10 are basically placed horizontally on a table such as a desk as shown in FIG. A control unit that mainly controls lighting of the lamp (light source) 32 based on signals from the base 10, the table 20 supported on the base 10, a plurality of LED lamps 32 as display means, and detection means such as a switch 31. 30 (including a power supply and a control circuit) and spectacles mounting position designation means (described later) provided on the table 20.

  The upper surface of the table 20 is a placement surface of the eyeglasses 100 to be inspected, and one point on the placement surface is set as a reference point P for balance measurement. In addition, the control unit 30 includes a balance detection unit, and the balance detection unit is initially set to output the first signal in a non-placed state in which no object is placed on the placement surface. When an object is placed on the object and the center of gravity of the object is located on the reference point P, a second signal is output, and when the center of gravity of the object deviates from the reference point P, the direction of departure is known. A third signal is output.

  The spectacles placement position designation means is provided on the placement surface and designates the spectacles 100, which is an object to be inspected, to be placed in a state where the appropriate center of gravity position coincides with the reference point P. is there.

Here, the eyeglasses 100 to be inspected will be briefly described.
As shown in FIG. 1, a spectacle 100 to be inspected includes a front portion 102 of a spectacle frame 101.
The left and right lenses 120 are respectively fitted to the left and right lens frames (rims). The spectacle frame 101 is also attached to the bridge portion 104 that connects the left and right lens frames, and the bridge portion 104 or the lens frame. A nose pad (not shown), a temple portion 103 that extends rearward from both ends of the front portion 102, and a modern portion 105 that is an ear hooking portion at the rear end of the temple portion 103 are provided. The wearer wears the spectacles 100 by placing the nose pad of the spectacle frame 101 on the nose and putting the modern part 105 on the ear. When the balance inspection is performed, the temple 103 is opened in a worn state and the glasses 100 are placed on the table 20.

Next, each embodiment will be described individually.
<First Embodiment>
1A and 1B show a configuration of a weight balance inspection apparatus K1 for spectacles according to a first embodiment, where FIG. 1A is a plan view and FIG. 1B is a side sectional view. FIG. 2 is an enlarged view showing a main part of FIG.

  This inspection device K1 supports a circular table 20 on a circular base 10 in plan view so as to be tiltable in all directions. In this case, a reference point P is set at the geometric center O of the table 20 (which is also the center of gravity of the table 20), and the table 20 is supported so as to be tiltable in all directions with the reference point P as a fulcrum. The support is performed by placing a central cone portion 25 having a lower surface conically recessed upward at the tip of a support pin 15 erected at the center of the base 10.

  Between the table 20 and the base 10, a rotation preventing means for the table 20 is provided. The detent means includes a pin 16 erected on the base 10 and a through hole 26 on the table 20 side through which the pin 16 passes. However, the rotation preventing means is configured not to prevent free tilting of the table 20. By providing the rotation preventing means, the substantially circular table 20 is prevented from rotating, so that the table 20 does not rotate unnecessarily, and the accuracy of inspection can be increased.

  A plurality of balance adjusting screws 23 for adjusting the weight balance of the table 20 itself are provided around the reference point P at intervals in the circumferential direction on the lower surface of the table 20. By adjusting the balance adjusting screw 23, the distance from the reference point P of each adjusting screw 23 can be changed, so that the center of gravity of the table 20 can be adjusted to coincide with the reference point P.

  Note that the table 20 is supported so as to have a certain level of horizontal resilience in order to make the detection of the tilting direction of the table have an appropriate sensitivity. In order to provide horizontal restoration, the height of the center of gravity of the table 20 is set lower than the support point (the contact point between the support pin 15 and the central cone part 25), or the contact point between the support pin 15 and the central cone part 25 is set. (For example, providing a minute horizontal surface at the contact point), supporting the periphery of the table 20 with an elastic member such as a weak spring (supporting with a spring built in the switch 31 described later) Is also effective).

  A plurality of switches 31 serving as detection means for generating an electrical signal corresponding to the tilting direction of the table 20 are provided below the table 20 as an element of the balance detection means. The switches 31 are arranged at intervals in the circumferential direction with the reference point P as the center, and when the table 20 is inclined more than a predetermined amount, the switches 31 arranged in the inclined direction are turned on. Yes.

  Further, around the lower side of the table 20, a plurality of LED lamps 32 are disposed as display means for performing display according to the first to third signals. The lamp 32 and the switch 31 are attached to the bracket 14 provided on the base 10, and the light of the lamp 32 is radiated to the outside from the translucent wall 11 rising from the periphery of the base 10. . The translucent wall 11 is formed integrally with the base 10 by, for example, a milky white resin plate or the like, and also functions to close the peripheral gap between the base 10 and the table 20. The design, color, and the like of the table 20, the base 10, and the translucent wall 11 can be arbitrarily selected.

  In this way, by closing the peripheral gap between the table 20 and the base 10 with the translucent wall 11, the inspection device K1 is configured in a circular box shape, and the control unit 30 is disposed inside.

  The control unit 30 has a function of taking in the signals of the respective switches 31 and controlling the lighting of the lamps 32. At least when the third signal is generated, that is, the center of gravity of the placed glasses 100 is the reference point P. When it is off, the lighting control of the lamp 32 different from that when the first and second signals are generated is performed, and the lighting control of the lamp 32 at a position corresponding to the content of the third signal is performed. By doing so, the direction of deviation of the center of gravity of the glasses 100 is displayed.

  Further, on the upper surface of the table 20, a support member 22A for placing the bridge portion 104 of the spectacles 100 is provided as spectacle placement position specifying means, and the spectacles 100 are placed on the table 20 by hanging the bridge portion 104 on the support member 22A. By placing the eyeglasses 100 on top, the eyeglasses 100 are simply set in a state in which the appropriate center of gravity G of the eyeglasses 100 (for example, a position about 30 mm behind the center of the front portion 102 in the left-right direction) coincides with the reference point P. Be able to. Instead of providing the support member 22A of the bridge portion 104, as shown in FIG. 5, a figure 22B representing the glasses 100 may be drawn on the upper surface (mounting surface) of the table 20. Further, in the vicinity of the position of the modern portion 105 on the upper surface of the table 20, a recess 27 for placing a balance weight (weight) is provided as necessary.

Next, an inspection method will be described.
When inspecting the weight balance of the glasses 100 with the inspection device K1, first, a main switch (not shown) is turned on in a state where an object is not placed on the table 20, so that the inspection device K1 can be inspected. Since the table 20 does not tilt in this non-mounted state, the control unit 30 outputs the first signal by the initial setting. When the first signal is output, nothing needs to be notified to the outside, but the inspection system is in place, for example, by sounding a buzzer only once or lighting an appropriate lamp for a short time. You may let them know. Note that when the table is detected in the non-mounted state and the third signal is output, the installation location is changed or the adjustment screw is adjusted for calibration.

  Next, the glasses 100 are placed on the table 20 as designated by the glasses placement position designation means. That is, the bridge portion 104 is hung on the support member 22A, and the glasses 100 are placed on the table 20 in a correct posture. In this state, when the center of gravity of the glasses 100 coincides with the reference point P, the table 20 does not tilt, so the control unit 30 outputs a second signal. Therefore, it can be determined that the balance is good due to the generation of the second signal. Also in this case, when the second signal is output, nothing may be notified to the outside. For example, a buzzer sound (buzzer sound different from the initial setting) is sounded, or an appropriate lamp is turned on (the initial setting is The lighting may be performed in a different form) to indicate that the balance state is good.

  However, in the present embodiment, the first signal and the second signal cannot be distinguished (both are signals that all the switches 31 are OFF), so when the first signal and the second signal are output, However, it is preferable that the lamp 32 be unlit (or all lights). Variations of the lighting control of the lamp 32 will be described later.

  In order to distinguish between the first signal and the second signal, a means for detecting whether or not glasses are placed is provided. When glasses are not placed, the first signal and glasses are placed May be distinguished from the second signal.

  Further, when the balance of the placed glasses 100 is poor, the table 20 is tilted and the switch 31 on the tilted side is turned on. Accordingly, a third signal is output from the control unit 30. Based on the third signal, the lamp 32 on the inclined side (or the opposite side) is turned on (or blinked), so that the center of gravity is obtained. The fact that the center of gravity is shifted from the proper center of gravity G and the direction in which the center of gravity is eccentric can be notified.

  Based on the display of the lamp 32, the balance weight (weight) is placed on the table 20 while adjusting the weight, so that the balance weight that needs to be attached can be selected. That is, the balance weight to be mounted can be selected by placing the balance weight so that the table 20 does not tilt (or, for example, all the lamps 32 are turned off). Adjustment is completed when the second signal is output (for example, when all the lamps 32 are extinguished), and the balance weight is attached to the modern unit 105, for example, to provide glasses with appropriate balance. Can do.

  Thus, the weight balance of the glasses 100 depends on how the lamps 32 are lit when the glasses 100 to be inspected (finished glasses fitted with a lens fitted to the frame) are placed on the table 20. It can be determined whether or not it is appropriate, and it can be easily understood in which direction of the front, back, left and right the center of gravity is shifted depending on where the lamp 32 is lit. Therefore, not only the front / rear balance but also the left / right balance can be easily adjusted.

  Further, since the direction of the eccentricity of the center of gravity can be determined by the position where the lamp 32 is lit, the center of gravity is shifted immediately and accurately, unlike the case where the inclination of the table on which the glasses are placed is visually observed as in the prior art. The direction can be determined, and the balance can be easily adjusted. Therefore, it is possible to adjust the weight balance of the glasses while showing it to the customer at the store of the eyeglass store or the like, and being satisfied with the customer.

  Further, at the time of inspection, the measurement result can be approximated only by placing the balance weight on the table 20 in the vicinity of the portion where the balance weight is scheduled to be mounted (for example, the modern portion 105) without directly fixing the balance weight to the spectacle frame 101. Accordingly, it is possible to efficiently select an appropriate balance weight and improve convenience at the store.

  In the case of this embodiment, since the inclination of the table 20 is detected by the plurality of switches 31, the electric circuit in the control unit 30 can be configured easily.

<Second Embodiment>
FIG. 3 is a cross-sectional view showing a configuration of a weight balance inspection apparatus K2 for spectacles according to the second embodiment.
In the inspection apparatus K1 of the first embodiment, a large number of switches 31 are arranged as detection means. However, in the inspection apparatus K2 of the second embodiment, the detection means is provided on the lower surface of the center of the table 20 instead of the switch. A tilt sensor 35 capable of outputting a signal corresponding to the tilt direction of the table 20 is attached. The kind of inclination sensor 35 is not ask | required. Further, the table 20 is not supported at the central portion by the support pins 15 as shown in FIG. 2, but is supported by a plurality of springs 18 arranged at the lower peripheral edge. The signal from the tilt sensor 35 is taken into the control unit 30, and the control unit 30 lights the lamp 32 in the tilted direction (or the reverse direction) based on the signal from the tilt sensor 35.

  In this way, when the inclination of the table 20 is detected by the inclination sensor 35, it is not necessary to use a large number of switches 31, so that a simple structure can be achieved.

<Third Embodiment>
FIG. 4 is a cross-sectional view showing a configuration of a weight balance inspection apparatus K3 for eyeglasses according to the third embodiment.
In the inspection apparatuses K1 and K2 of the first and second embodiments described above, the table 20 is tiltably supported, and the inclination of the table 20 is detected to detect the eccentricity of the center of gravity of the glasses 100. However, in the inspection apparatus K3 of the third embodiment, a means for detecting a load applied to the table 20 on the lower surface of the table 20 around the reference point P (see FIG. 1) at intervals in the circumferential direction. A plurality of piezoelectric sensors 37 (load detection elements) are arranged, and these piezoelectric sensors 37 detect the uneven distribution of loads. When the center of gravity is eccentric, there is a difference in the detection value of each piezoelectric sensor 37, so that the position of the center of gravity can be known from the difference.

  Thus, when detecting the uneven distribution of the load acting on the table 20 with the piezoelectric sensor 37, it is not necessary to support the table 20 so as to be able to tilt, so that the structure can be simplified.

<Fourth embodiment>
Further, when the piezoelectric sensor 37 is used, the amount of uneven distribution of the center of gravity can be known by quantification. Therefore, as in the inspection apparatus K4 of the fourth embodiment in FIG. 50, the inspection result can be displayed as a numerical value or a chart. Here, when it is not desired to place the weight of the display 50 on the table 20, a transparent portion 51 may be provided on the table 20 so that the lower display 50 can be seen through the transparent portion 51.

  In the example of FIG. 5, a figure 22 </ b> B representing the glasses 100 is drawn on the upper surface (mounting surface) of the table 20 as the spectacle placement position specifying means.

  In each of the embodiments described above, the case where the reference point P is set at the graphic center O of the circular table 20 has been described, but the reference point may be set anywhere. As can be seen from the examples of FIGS. 1 and 5, the proper center-of-gravity position G of the spectacles 100 is close to the front portion 102 side, so if the reference point P is set to the circular center O, it is useless on the table 20. An area (a space on the front side of the front portion 102) is created. In the example of FIG. 5, the display 50 is arranged in the useless area and is effectively used. In addition, the example which reduced the space of the front side of the front part 102 is shown as following embodiment.

<Fifth Embodiment>
FIG. 6 is a plan view of a weight balance inspection apparatus K5 for eyeglasses according to a fifth embodiment, and FIG. 7 is a perspective view showing any use state.
In this inspection apparatus K5, a reference point P (coincident with the appropriate center of gravity position G) is set at a position eccentric from the graphic center O of the circular table 20, and the front portion is positioned at the shortest distance from the peripheral edge of the table 20 due to the eccentricity. An image figure 22B, which is a spectacle placement position designating unit, is drawn so that the spectacles 100 are placed with 102 (refer to FIG. 7). A plurality of springs 19 for stably supporting the table 20 are arranged below the reference point P so that the table 20 can tilt around the reference point P. In the figure, as an example, H indicates a place where the lamp 32 is shining due to the uneven distribution of the center of gravity.

  As described above, when the reference point P is set at a position eccentric from the graphic center O of the table 20, the planar dimension of the inspection apparatus K5 can be reduced.

<Sixth Embodiment>
FIG. 11 shows a modification of the support structure in the case where the table is supported by support pins in the same configuration as the spectacle weight balance inspection apparatus of the first embodiment. Since the configuration other than the table support structure is the same as that of the first embodiment, illustration and description thereof are omitted.

  In each example shown here, the tip shape of the support pin and the structure of the contact point on the table side are deformed in order to make the detection of the tilting direction of the table 20 appropriate sensitivity.

  FIG. 11A shows an example in which the upper end of the support pin 315A is set to a flat surface 315a, and the contact surface of the contact convex portion 325A on the table 20 side is set to a spherical surface 325a.

  11B, as in FIG. 11A, the upper end of the support pin 315A is set to a flat surface 315a, and the contact surface of the contact projection 325B on the table 20 side is a spherical surface having a larger radius of curvature than in the case of FIG. This is an example set to 325b.

  FIG. 11C is an example in which the upper end surface of the support pin 315C is configured as a concave surface 315c, and the contact surface of the contact portion 325A on the table 20 side is set to a spherical surface 325a.

  FIG. 11D shows an example in which the upper end surface of the support pin 315D is configured by a convex spherical surface 315d, and the contact surface of the contact portion 325D on the table 20 side is set to a flat surface 325d.

  FIG. 11E shows an example in which the upper end surface of the support pin 315D is configured by a convex spherical surface 315d, and the contact surface of the contact portion 325E on the table 20 side is set to the concave surface 315e.

  When configured as described above, the contact surface between the support pins 315A to 315D and the table 20 can be enlarged, so that the sensitivity of detection of the tilting direction of the table 20 can be lowered, and the sensitivity is too high, so This is effective when it is difficult to adjust.

  Although not mentioned in the above embodiment, when the control unit 30 outputs the third signal, a signal including the degree of deviation of the center of gravity of the object from the reference point P is output, and the display means You may make it perform the display which understands the deviation | shift degree from the reference | standard point of a gravity center. Specifically, in the case of the switch system, a switch is provided in two stages so that the magnitude of the inclination of the table 20 can be detected step by step, and the luminance of the lamp 32 is changed accordingly. do it. In the case of the piezoelectric sensor system of FIG. 4, the load uneven distribution amount can be detected step by step from the beginning, and the result may be displayed on the display 50 or the like.

  As described above, when the degree of deviation of the center of gravity (degree of eccentricity) is made known, it becomes possible to easily select balance weights for balance adjustment.

  The image figure 22B drawn on the upper surface of the table 20 may be drawn directly on the table 20, or may be drawn and pasted on a sheet. Further, the position of the sheet may be adjusted. When the position of the image graphic 22B can be changed in this way, it is possible to easily cope with a change in the appropriate center of gravity position.

  Moreover, in the said embodiment, although the balance detection means outputs the 1st-3rd signal, you may abbreviate | omit the 1st, 2nd signal output function. In this case, the third signal is not output when the glasses are placed or the center of gravity coincides with the reference position, and when the third signal is output, the reference position deviates from the center of gravity. Can be judged.

Next, variations of combinations of the first to third signals and how the lamp 32 is turned on will be briefly described.
Examples include combinations as shown in the following (A) to (C). In order to distinguish between the first signal and the second signal, it is only necessary to determine whether or not the glasses are placed. For example, the load detection means can be arranged below the table 20. However, no light = not turn on all lamps, all lights = turn on all lamps, weak light = turn on with weak light, green light = turn on with green light, partial light = inclined side (or its This means that only the lamp on the opposite side is lit.

(A) 1st signal (no light) + 2nd signal (no light) + 3rd signal (partial lighting)
(B) 1st signal (no light) + 2nd signal (all lights) + 3rd signal (partial lighting)
(C) 1st signal (weak light) + 2nd signal (green light) + 3rd signal (partial red lighting)

  Further, the number and position of the lamps 32 may be set arbitrarily, and it can be said that at least four lamps 32 should be provided at intervals of 90 °.

  FIG. 8 is a diagram showing lighting conditions of the lamp 32 and how to adjust the balance when four lamps are arranged at positions of 0 °, 90 °, 180 °, and 270 °, and FIG. FIG. 10 is a diagram showing the lighting state of the lamp 32 and how to adjust the balance when arranged at the positions of °, 135 °, 225 °, and 315 °. FIG. 10 shows eight lamps at 0 °, 45 °, 90 °, and 135. It is a figure which shows about the lighting condition of the lamp | ramp 32 at the time of arrange | positioning in the position of (degree), 180 degrees, 225 degrees, 270 degrees, and 315 degrees, and the method of balance adjustment. Each lamp 32 is labeled A to H.

  In the table of each figure (b), single symbols A to H indicate the position of the lit lamp, that is, the direction in which the table 20 is inclined. What is represented by a “+” symbol such as A + C indicates that the lamps A and C are lit, that is, the table 20 is tilted in the middle direction between A and C.

  In the balance inspection, first, the weight type is set to three or more levels. For example, five levels are set at equal intervals. Initially, the weights M1 and M2 are set to an intermediate weight. Then, the weight of the weight is adjusted according to the lighting condition of the lamp 32.

For example, in the case of FIG. 8, the following operation is performed.
(1) When tilting in the direction of A, the weight M1 is lighter by one step and the weight M2 is lighter by one step.
(2) When tilted in the direction of B, the weight M1 is increased by one step and the weight M2 is increased by one step.
(3) When tilted in the direction of C, the weight M1 is lighter by one step and the weight M2 is heavier by one step.
(4) When tilted in the direction D, the weight M1 is increased by one step and the weight M2 is decreased by one step.
(5) When tilted in the middle direction between A and C, only the weight M1 is lightened by one step.
(6) When tilting in the middle direction between A and D, only the weight M2 is lightened by one step.
(7) When tilting in the intermediate direction between B and C, only the weight M2 is increased by one step.
(8) When tilting in the middle direction between B and D, only the weight M1 is increased by one step.

In the case of FIG. 9 and FIG. 10, since it has the following correspondence with the case of FIG. 8, the same operation as (1)-(8) should just be performed.
(1) A = E + F
(2) B = G + H
(3) C = E + G
(4) D = F + H
(5) A + C = E
(6) A + D = F
(7) B + C = G
(8) B + D = H

In each of the above examples, only the shift direction of the center of gravity is displayed on the display unit (the lamp 32, the display 50, etc.), but the parts that require balance adjustment (right modern, left modern, left and right modern) ) And whether the balance adjustment is an adjustment in the direction of increasing the weight or an adjustment in the direction of decreasing the weight may be displayed on the display unit. Further, the portion for performing the display may be arranged in the eyeglass image portion on the table 20 or in the vicinity thereof. In this case, the display contents of the balance adjustment part and the weight increase / decrease are determined by calculation by the arithmetic processing unit based on the detection result of the direction of deviation of the center of gravity.

BRIEF DESCRIPTION OF THE DRAWINGS The structure of the weight balance test | inspection apparatus of the spectacles of 1st Embodiment of this invention is shown, (a) is a top view, (b) is a sectional side view. It is a figure which expands and shows the principal part of FIG.1 (b). It is sectional drawing which shows schematic structure of 2nd Embodiment of this invention. It is sectional drawing which shows schematic structure of 3rd Embodiment of this invention. It is a top view which shows schematic structure of 4th Embodiment of this invention. It is a top view which shows schematic structure of 5th Embodiment of this invention. It is a perspective view which shows the use condition of 5th Embodiment. It is a figure shown about the example of the lighting condition of a lamp | ramp, and the method of balance adjustment. It is a figure shown about the other example of the lighting condition of a lamp | ramp, and the method of balance adjustment. It is a figure shown about the further another example of the lighting condition of a lamp | ramp, and the method of balance adjustment. It is a principal part enlarged view which shows each modification (a)-(e) of the support structure of the table of 1st Embodiment. It is explanatory drawing of a prior art example.

Explanation of symbols

K1-K5 Glasses weight balance inspection device 16 Non-rotating pin (rotating stop means)
20 Table 22A Support member (glasses placement position specifying means)
22B Graphic image of eyeglasses (glasses placement position designation means)
23 Balance adjustment screw (balance adjustment means)
26 Through hole (Non-rotating means)
30 Control unit 31 Switch 32 Lamp (light source)
35 Inclination sensor 37 Piezoelectric sensor (load detection element)
DESCRIPTION OF SYMBOLS 100 Eyeglasses 101 Eyeglass frame 102 Front part 104 Bridge part G Appropriate center of gravity position O Table center P Reference point

Claims (14)

A table in which one point on the placement surface is defined as a reference point indicating an appropriate center of gravity position of the glasses;
Balance detecting means for detecting the direction of the off-center when the center of gravity of the object placed on the placement surface deviates from the reference point;
A spectacle placement position designating unit which is provided on the placement surface and designates spectacles which are objects to be inspected to be placed at a predetermined position with the temple open;
Based on the detection result of the balance detection means, a display means for performing a display indicating a direction of deviating the center of gravity of the glasses or a portion that requires weight balance adjustment,
A weight balance inspection apparatus for eyeglasses, comprising: The weight balance inspection apparatus for glasses according to claim 1,
As the display means,
A weight balance inspection apparatus for eyeglasses, wherein a plurality of light sources are arranged so as to be positioned around the eyeglasses placed on the table. The weight balance inspection apparatus for glasses according to claim 1 or 2,
While supporting the table so that it can tilt in all directions with the reference point as a fulcrum,
As the balance detection means,
An apparatus for inspecting a weight balance of spectacles, comprising a detecting means for generating an electrical signal corresponding to the tilting direction of the table. The weight balance inspection apparatus for glasses according to claim 3,
As the detection means, a plurality of switches are arranged around the reference point at intervals in the circumferential direction at the bottom of the table,
A weight balance inspection apparatus for spectacles, wherein a switch arranged in a tilted direction is turned on when the table is tilted more than a predetermined angle. The weight balance inspection apparatus for glasses according to claim 3,
A weight balance inspection apparatus for spectacles, wherein an inclination sensor capable of outputting a signal corresponding to an inclination direction of the table is attached to the table as the detection means. The weight balance inspection apparatus for glasses according to claim 1 or 2,
As the balance detection means,
Provided on the lower surface of the table is a detection means for generating an electrical signal corresponding to the load applied to the table,
The detecting means comprises a plurality of load detecting elements arranged around the reference point at intervals in the circumferential direction thereof. A weight balance inspection apparatus for eyeglasses according to any one of claims 1 to 6,
The balance detection means outputs a signal including the degree of deviation of the center of gravity of the object from the reference point, and the display means performs display for indicating the degree of deviation of the center of gravity of the object from the reference point. An eyeglass weight balance inspection device. A weight balance inspection device for eyeglasses according to any one of claims 1 to 7,
The eyeglass weight balance inspection apparatus, wherein the reference point is set at the center of gravity of the table. A weight balance inspection apparatus for eyeglasses according to any one of claims 1 to 8,
A weight balance inspection apparatus for spectacles, wherein the planar shape of the table is formed in a substantially circular shape, and the reference point is set at the geometric center of the planar shape of the table. A weight balance inspection apparatus for eyeglasses according to any one of claims 1 to 8,
The planar shape of the table is formed in a substantially circular shape, and the reference point is set at a position that is eccentric from the center of the figure of the planar shape of the table, and the front portion is directed to the position where the distance from the peripheral edge of the table is shortest due to the eccentricity. The spectacles weight balance inspection apparatus, wherein the spectacles placement position specifying means is provided so as to place spectacles. A weight balance inspection device for eyeglasses according to any one of claims 1 to 10,
A weight balance inspection apparatus for spectacles, wherein the table is provided with means for adjusting its own weight balance. The weight balance inspection apparatus for glasses according to any one of claims 1 to 11,
A spectacle weight balance inspection apparatus, wherein a figure representing the spectacles is drawn on the mounting surface of the table as the spectacle placement position specifying means. The weight balance inspection apparatus for spectacles according to claim 12,
A weight balance inspection device for spectacles, wherein a position of a figure that is an image of the spectacles is adjustable. A weight balance inspection apparatus for eyeglasses according to any one of claims 1 to 13,
A spectacle weight balance inspection apparatus, wherein a support member for placing a bridge portion of spectacles is provided on the placement surface of the table as the spectacle placement position specifying means.

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