TW201608193A - A surface plate unit - Google Patents

Abstract

This invention provides for a surface plate unit capable of appropriately supporting metal positioning pieces on a ceramic surface plate (including a tray) without a shake and tilt when a glass substrate is positioned on the surface plate by the positioning pieces, thereby the glass substrate is safely positioned without any damage. A surface plate unit has a plurality of metal positioning pieces 5 which are provided with a ceramic surface plate by being respectively inserted into a plurality of thru-holes for positioning a glass substrate, the positioning piece has a supporting block part 7, a pin part 8 and an insertion part 10, a lengthwise direction of the supporting block part is directed toward a direction of a disposition of the thru-holes and a bottom surface 7b of the supporting block part is contact with an upper surface of the surface plate so as to support the positioning piece on the surface plate, the pin part is integrally and vertically formed to the supporting block part and is loosely inserted in the thru-hole, the insertion part is formed within the supporting block part, and connecting rod 6 is provided between an adjacent pairs of the positioning pieces, the connecting rod restricting a rotation of the positioning piece around the thru-hole on the surface plate.

Description

Fixed disk unit

The present invention relates to a fixed disk unit which can be fixed when a glass substrate placed on a ceramic fixed disk is positioned by a metal positioning block even if it is disposed in a relaxed state with respect to the fixed disk. The positioning block is appropriately supported in a manner that does not cause tilting on the disc, and the glass substrate can be positioned more safely.

A display panel or a touch panel such as a liquid crystal is gradually thinned each year, and the glass substrate as a base material thereof is also thinned, which makes handling at the time of manufacture difficult. When processing the glass substrate, high precision is required, and in particular, high precision with respect to flatness is desired. When the glass substrate is subjected to heat treatment, it is desirable to position it on a flat plate having a high flatness ( The state of the disk is transferred.

At this time, as the fixed disk unit, it is costly to use a ceramic having excellent heat resistance for the fixed disk and the positioning pin. Further, if a cheap metal positioning pin is fitted to a ceramic fixing plate and screw-joined by a screw, the coefficient of thermal expansion of the ceramic and the metal may be different, and the ceramic fixed disk may be damaged. Therefore, there is a need for an inexpensive fixed disk unit for positioning and holding a heat-treated glass substrate.

A fixed disk unit capable of positioning a glass substrate subjected to heat treatment with a metal locating pin is known as a structure which can be produced in a simple and inexpensive manner, and is disclosed in Patent Document 1.

The "fixed disk unit" of Patent Document 1 is provided with a ceramic solid. The fixing plate is provided with a glass substrate on which heat treatment is applied; a plurality of relaxation holes are arranged on the fixing plate at positions where the glass substrate is positioned, and are formed in a vertical direction; a plurality of metal positions are formed a pin that is loosely inserted into the slack holes; and a coupling member that connects the positioning pins to each other on the fixed disk while maintaining the protruding state of the positioning pin from the slack hole toward the fixed disk. Specifically, the connecting member is made of a metal wire made of a diameter smaller than the diameter of the through hole provided in the lateral direction of the positioning pin, and is loosely inserted into the through hole in the lateral direction.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent No. 50693382

In the prior art, the connecting member that is loosely inserted into the protruding pin of the slack hole toward the fixed disk is loosely passed through the wire of the through hole in the lateral direction of the positioning pin. Although it is important that the positioning pin is loosely inserted into the slack hole so that its thermal expansion does not adversely affect the fixed disk, the positioning pin may be shaken or vibrated in the slack hole.

In order to prevent the shaking or the like, the fixing positioning pin must be supported in some ways so that the positioning pin does not move. In the prior art, since the wire of the positioning pin is loosely passed through the through hole of the positioning pin in the protruding state on the fixed disk, the wire does not reliably support the positioning pin so as not to move.

Therefore, at the time of transportation, etc., the positioning pin may be shaken or may be caused to collide with the glass substrate due to the vibration thereof, and the positioning pin may be inclined on the fixed disk. Hey. Then, the positioning pin that is loosely inserted into the slack hole is caught when the glass substrate is placed or when it is removed. Therefore, it is difficult to secure the positioning function so as not to damage the glass substrate.

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a fixed disk unit which can be positioned with respect to a glass substrate placed on a ceramic fixed disk by a positioning block made of metal, even when The fixed disk is disposed in a relaxed state, and the positioning block can be appropriately supported without causing a tilting inclination on the fixed disk, and the positioning can be performed more safely without damaging the glass substrate.

The fixed disk unit of the present invention is provided on a ceramic fixed plate on which a heat-treated glass substrate is placed, and a plurality of metal positioning blocks are provided, and the plurality of metal positioning blocks are inserted in the pair of glass substrates. a plurality of holes formed at a position to be positioned and penetrated in the vertical direction, wherein the positioning block includes a support block body portion having a longitudinal direction along an arrangement direction of the hole portions and a length direction Appropriately formed with a maximum width dimension closest to the glass substrate compared to other portions, the bottom surface of which is abutted against the fixed disk, and the positioning block is integrally supported on the fixed disk; the pin portion thereof Formed from the maximum width dimension of the support block body, and inserted loosely in the hole portion; and an insertion portion formed on the inner side of the support block body along the longitudinal direction thereof; One of the pair of positioning blocks is provided with a connecting rod, and the two ends of the connecting rod are inserted into the insertion portion, and the positioning block is restrained on the fixing plate around the hole portion The outer diameter of the connecting rod is formed by a slight gap with respect to the insertion portion, and is formed to be smaller than the inner diameter of the insertion portion to the extent of mutual damage during thermal expansion, and the length of the connecting rod When extending according to thermal expansion, it is made relative to the inner side of the support block body The manner in which the margin is not interfered, and the gap that does not fall off when the one side is placed is inserted into the insertion portion is determined according to the interval size of the hole portion.

In the positioning block, a through hole that penetrates from the support block body portion until the pin portion penetrates in the vertical direction and communicates with the insertion portion is formed.

The support block body portion is formed to have a slope on a peripheral portion of the glass substrate placed on the fixed disk.

The fixed disk unit of the present invention can be disposed on a fixed plate by positioning a glass substrate placed on a ceramic fixed disk with a positioning block made of metal, even if it is disposed in a relaxed state with respect to the fixed disk. The positioning block is appropriately supported in such a manner that no shaking is generated, and positioning can be performed more safely without damaging the glass substrate.

1‧‧‧ Fixed disk unit

2‧‧‧ glass substrate

2a‧‧‧side of the glass substrate

3‧‧‧ Fixed disk (disk, etc.)

4‧‧‧ Cave Department

5‧‧‧ Positioning block

6‧‧‧ Connecting rod

6a‧‧‧End of the connecting rod

7‧‧‧Support block body

7a‧‧‧ top surface

7b‧‧‧ bottom

7c‧‧‧ highlights

7d‧‧‧ slope

7e‧‧ ‧ prominent tip

7f‧‧‧ end face

8‧‧‧ Department of Sales

8a‧‧‧French table

9‧‧‧through hole

9a‧‧‧ Inside the through hole

10‧‧‧Insert Department

11‧‧‧ hole

P‧‧‧ hole spacing

R‧‧‧Loading area

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a preferred embodiment of a fixed disk unit of the present invention, showing a state in which a positioning block and a connecting rod are disposed in front of a fixed disk.

Fig. 2 is an explanatory view showing a positioning block used in the fixed disk unit shown in Fig. 1. Fig. 2(a) is a plan view, Fig. 2(b) is a front view, and Fig. 2(c) is a side view.

Figure 3 is a side elevational view of the tie rod used in the fixed disk unit shown in Figure 1.

4 is a perspective view of the fixed disk unit shown in FIG. 1 and showing the positioning of the positioning block and the connecting rod on the fixed disk to position the glass substrate.

Fig. 5 is an explanatory view showing an enlarged main portion of Fig. 4, Fig. 5(a) is a plan view, and Fig. 5(b) is a front cross-sectional view.

Figure 6 is a view showing a modification of the positioning block shown in Figure 1, which is connected by a connecting rod. A perspective view of the state.

Hereinafter, a preferred embodiment of the fixed disk unit of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a preferred embodiment of a fixed disk unit of the present invention, showing a state in which a positioning block and a connecting rod are disposed in front of a fixed disk. Fig. 2 is an explanatory view showing a positioning block used in the fixed disk unit shown in Fig. 1. Fig. 2(a) is a plan view, Fig. 2(b) is a front view, and Fig. 2(c) is a side view. Figure 3 is a side elevational view of the tie rod used in the fixed disk unit shown in Figure 1. 4 is a perspective view of the fixed disk unit shown in FIG. 1 and showing the positioning of the positioning block and the connecting rod on the fixed disk to position the glass substrate. Fig. 5 is an explanatory view showing an enlarged main portion of Fig. 4, Fig. 5(a) is a plan view, and Fig. 5(b) is a front cross-sectional view.

The fixed disk unit 1 of the present embodiment is configured to position the glass substrate 2 when heat-treating a thin glass substrate 2 having a thickness of about 1 mm or less for use in a display panel of a portable communication device or a touch panel. The user is transported to the inside of the heating furnace on the fixed tray 3. The fixed disk unit 1 also includes a flat plate or the like as used above. In the present embodiment, a fixed disk unit 1 on which a rectangular glass substrate 2 is placed will be described as an example.

Basically, as shown in FIGS. 1 and 4, the fixed disk unit 1 includes a ceramic fixed disk 3 on which a glass substrate 2 subjected to heat treatment is placed, and a plurality of holes 4, which are The fixing plate 3 is arranged at a position for positioning the glass substrate 2, and is formed to penetrate in the vertical direction; a plurality of positioning blocks 5 made of metal are disposed in each of the plurality of holes 4; and metal The connecting rods 6 are formed on the fixed disk 3 between the positioning blocks 5.

As shown in Fig. 1, the ceramic fixed disk 3 has a larger area than the glass substrate 2 placed thereon. On the fixed disk 3, eight hole portions 4 are arranged at positions where the glass substrate 2 is positioned so as to surround the mounting region R on which the glass substrate 2 is positioned and placed. The number of holes 4 is set as needed. The inner surface of the hole portion 4 is formed by a cylindrical surface whose axis is along the vertical direction. The eight hole portions 4 are provided at two locations along the four sides 2a so as to be positionable at least on the four sides 2a of the glass substrate 2.

In Fig. 2, an example of the positioning block 5 constituting the fixed disk unit 1 is shown. The positioning block 5 is integrally formed with a support block body portion 7 and a pin portion 8. The top profile of the support block body 7 is as shown in Fig. 2(a), which is the widest part in the center in the left and right longitudinal direction, and is gradually narrowed toward the both ends in the left and right longitudinal directions, or Formed with a bevel.

As shown in Fig. 2(b), the height of the support block portion 7 is the same height in the left and right longitudinal directions, and the top surface 7a and the bottom surface 7b are formed into a flat surface. As shown in Figs. 2(a) and 2(c), the top surface 7a of the support block portion 7 is formed at a substantially constant width between the both ends of the support block portion 7 in the longitudinal direction. Rectangular. The bottom surface 7b of the support block body 7 is formed into the above-described spindle shape or the like.

The support block body portion 7 has a projecting portion 7c formed on the lower side surface portion and a slope 7d formed on the upper side surface portion, respectively. Specifically, the lower side surface portions of the pair of the front and back sides of the support block body portion 7 are formed so as to rise substantially perpendicularly from the bottom surface 7b of the spindle shape, and are formed to be along with the left and right sides of the self-supporting block portion 7. A protruding portion 7c that protrudes outward toward the center portion at both end portions in the longitudinal direction. The most prominent portion of the projection 7c serves as the protruding tip 7e. The upper side portion is formed to be inclined from the top surface 7a of the rectangular shape toward the upper end of the protruding portion 7c Slope 7d.

The outer dimensions of the support block portion 7 are formed at least in such a manner that the left and right longitudinal direction dimensions of the support block portion 7 are larger than the inner diameter of the hole portion 4 formed in the fixed disk 3. The maximum dimension in the width direction of the support block portion 7 (the width dimension of the position of the protruding tip end 7e) is set to be the same as the outer diameter of the pin portion 8 inserted into the hole portion 4. That is, the pin portion 8 and the protruding tip end 7e are formed in a smooth and continuous manner without a step. Further, the bottom surface 7b of the support block body 7 on the outer side of the pin portion 8 is in surface contact with the upper surface of the fixed disk 3. The end faces 7f of the both ends in the longitudinal direction of the support block body 7 are formed substantially perpendicularly from the bottom face 7b to the top face 7a.

In the illustrated example, the support block body portion 7 is formed in the same manner in the left and right longitudinal direction with respect to the left and right portions of the center portion. However, it may be the same as the center portion of the protruding tip end 7e including the largest width dimension, and the right side dimension is shorter than the left side dimension. Further, the support block body portion 7 is formed in the same form in the forward and reverse directions even in the width direction thereof, but may be in a different form in the front and the back. However, as in the case of the example, the left and right longitudinal directions and the front and back width directions are the same, and since the orientation of use is not taken care of, the convenience in handling can be improved.

The pin portion 8 is formed by the bottom surface 7b of the support block body portion 7 hanging downward therefrom. The pin portion 8 is disposed to match the position of the protruding tip end 7e of the support block portion 7, that is, the position of the maximum width dimension. In the illustrated example, since the protruding tip end 7e is located at the center portion in the longitudinal direction of the support block body portion 7, the pin portion 8 is provided at the center portion. The pin portion 8 is formed into a cylindrical body whose axis is along the up and down direction.

The outer diameter of the pin portion 8 is set to be the maximum width dimension of the support block portion 7 when the glass substrate 2 is placed on the fixed disk 3 or when it is removed from the fixed disk 3 without being caught. The width of the protruding tip 7e is the same size and can be inserted The hole portion 4 formed in the fixed disk 3 is formed to be smaller than the inner diameter of the hole portion 4. Since the fixed disk unit 1 of the present embodiment is used for heat treatment, it is considered that the coefficient of thermal expansion of the ceramic fixed disk 3 in which the hole portion 4 is formed and the metal pin portion 8 inserted into the hole portion 4 are different. The inner diameter of the cavity portion 4 is determined in such a manner that the pin portion 8 which is thermally expanded by the heat treatment does not cause damage to the fixed disk 3.

The positioning block 5 is formed with a through hole 9 from the top surface 7a of the support block portion 7 to the lower end of the pin portion 8 so as to penetrate in the vertical direction. The through hole 9 is preferably formed straight in the vertical direction, but may be formed in a penetrating manner, and may not be straight in the vertical direction.

Further, an insertion portion 10 that communicates with the through hole 9 is formed on the inner side of the support block body portion 7 from the end surface 7f of the one end portion in the left and right longitudinal direction thereof along the left and right longitudinal direction. In the illustrated example, the insertion portion 10 is open at one end toward the outside of the support block portion 7, and the other end is formed to be a straight hole 11 that communicates with the through hole 9 in the horizontal direction. The hole 11 is formed in the center of the front and back width directions of the support block body 7. In the illustrated example, the through hole 9 is formed in the center portion of the support block body portion 7 in the front-rear width direction, but may be formed to be displaced from the center portion as long as it communicates with the hole 11.

In the present embodiment, the case where the through hole 9 is formed is shown, and the insertion portion 10, that is, the hole 11 is opened by both the one end and the other end. The through hole 9 may not be formed. When the through hole 9 is not formed, the insertion portion 10 is formed as a recess that opens one end and closes the other end. However, in the case of the recessed hole, there is a flaw in which the cutting debris or fine dust remaining on the inner side of the recessed hole when the inserting portion 10 is processed, and the cutting is performed by the vibration or the like when the fixed disk unit 1 is conveyed. The chips and the like are removed from the concave holes to the outside, and if they adhere to the surface of the glass substrate 2, the heat treatment of the glass substrate 2 or the processing of the subsequent step may be adversely affected, and the product may be defective. , It is preferable to form the through hole 9.

The connecting rod 6 is formed as a straight rod-like body as shown in FIG. The outer diameter of the connecting rod 6 is formed so as to be spaced apart from the hole 11 by a slight gap, and is formed to be smaller than the inner diameter of the hole 11 to such an extent that it does not cause damage to each other during thermal expansion. As shown in Fig. 4, the end portion 6a of the connecting rod 6 is inserted and inserted into the hole 11 of the insertion portion 10 of the positioning block 5 along the longitudinal direction thereof.

As shown in FIG. 5, the connecting rod 6 has a margin with respect to the inner surface 9a so that the end portion 6a does not interfere with the inner surface 9a of the through hole 9 when it is extended by thermal expansion. In addition, the spacing P of the hole portion 4 is determined so as to insert the gap between the connecting rods 6 when they are placed against each other (see FIGS. 1 and 5(b)). In other words, the length of the connecting rod 6 is determined based on the spacing P of the hole portion 4. In the case where the through hole 9 is not formed and the insertion portion 10 is a concave hole, the end portion 6a of the connecting rod 6 has a margin with respect to the other end of the closing, and is spaced apart when the connecting rod 6 is placed toward one side. The spacing P of the hole portion 4 is determined by the manner in which the gap is removed and inserted.

With respect to the adjacent one of the pair of positioning blocks 5, by inserting the both ends 6a of the connecting rod 6, as will be described later, the pin portion 8 is inserted into the hole portion 4 and is disposed on the fixed disk 3 by a pair of positioning blocks 5. The rotation of the winding portions 4 is prevented on the fixed disk 3, respectively.

4 and 5, the state in which the glass substrate 2 is positioned on the fixed disk 3 by the positioning block 5 and the connecting rod 6 is shown. When the glass substrate 2 is placed on the fixed disk unit 1, eight positioning blocks 5 and four connecting rods 6 are used.

Before the pin portion 8 of the positioning block 5 is inserted into the hole portion 4 of the fixed disk 3, the connecting rod 6 is inserted into the pair of positioning blocks 5 in advance to form a group. That is, the two ends 6a of the connecting rod 6 are inserted into the holes 11 of the positioning block 5 adjacent to each other. A set of the pair of positioning blocks 5 and one of the connecting rods 6 is mounted with respect to the fixed disk 3.

The pair of positioning blocks 5 are arranged in a straight line by being connected by one connecting rod 6, and the pin portions 8 are loosely inserted into the eight holes 4 arranged at positions where the rectangular glass substrate 2 is positioned. In the middle, the two holes 4 are adjacent to each other on the side 2a around the periphery of the glass substrate 2. Thereby, the four sides of the mounting region R of the glass substrate 2 are surrounded by the four sets of connecting rods 6 and the pair of positioning blocks 5.

When the pin portion 8 is inserted into the hole portion 4, the connecting rod 6 is spaced apart from each of the through holes 9 of the pair of positioning blocks 5 so as to have a margin even if it is elongated by thermal expansion, and even if When one side is placed, it will not fall off and set its length. In a state in which the connecting rods 6 are coupled to each other, the pin portions 8 are inserted into the supporting block body portions 7 of the positioning blocks 5 of the hole portion 4 such that the left and right longitudinal directions thereof are along the direction in which the hole portions 4 are arranged. Further, the support block body portion 7 is located at a position in the vicinity of the center portion in the longitudinal direction and its vicinity, specifically, the projecting tip end 7e is located closest to the glass substrate 2.

The support block body 7 is formed by inserting the pin portion 8 into the hole portion 4, bringing the flat bottom surface 7b of the spindle shape or the like into contact with the upper surface of the fixed disk 3, and supporting the positioning block 5 as a whole on the fixed disk 3. Therefore, the support block body portion 7, and thus the rocking of the positioning block 5, are restricted. At the same time, one of the pair of positioning blocks 5 supported on the fixed disk 3 is inserted with the both ends 6a of the connecting rod 6, and therefore, it is restricted from rotating around the hole portion 4 on the fixed disk 3.

Therefore, it is possible to prevent the positioning block 5 from changing the orientation of the both ends in the left and right longitudinal direction beyond the mounting region R of the glass substrate 2 on the fixed disk 3, so as not to interfere with the mounting region R. Way to fix the position. Further, the positioning block 5 is located at a position where the protruding tip end 7e and the slope 7d face the mounting region R.

The glass substrate 2 is carried in from above the fixed disk 3 and placed on the mounting region R. At this time, even if the glass substrate 2 is slightly displaced, each side 2a of the peripheral edge portion of the glass substrate 2 is guided by the slope 7d of each positioning block 5, and is appropriately and smoothly guided to the mounting area without causing damage. R is provided in the placement region R with the protruding tip 7e being reliably positioned.

According to the fixed disk unit 1 of the present embodiment, when the glass substrate 2 placed on the ceramic fixed disk 3 is positioned by the positioning block 5 made of metal, the pin portion that is loosely inserted into the hole portion 4 is included. The positioning block 5 of 8 is provided with a supporting block body portion 7 having a longitudinal direction along the direction in which the hole portion 4 is arranged, and having a bottom surface 7b abutting on the upper surface of the fixed disk 3 and positioning block 5 is supported on the fixed disk 3, so that the positioning block 5 can be placed on the fixed disk 3 by the surface of the fixed disk 3 contacting the bottom surface 7b, even if the pin portion 8 and the hole portion 4 are loose. The block 5 is disposed on the fixed disk 3, and the positioning block 5 can be appropriately supported without being tilted on the fixed disk 3, and the glass substrate 2 can be prevented from being vibrated during loading or placed or removed. Positioning in a way that causes damage.

The support block body portion 7 is formed in a manner suitable for the length direction thereof to be closest to the maximum width dimension position (the position of the protruding tip end 7e) of the glass substrate 2, specifically, the left and right length directions. The central portion and its vicinity are formed in a shape close to the outermost portion of the glass substrate 2, and the maximum width dimension of the self-supporting block portion 7 is suspended to form the pin portion 8, so that even if the glass substrate placed on the mounting region R is moved 2. It is also possible to appropriately maintain the position around the outer peripheral edge portion of the outer peripheral portion by the pin portion 8 and the support block body portion 7.

Since the two ends 6a of the connecting rod 6 are inserted into the insertion portion 10 of the adjacent one of the positioning blocks 5, the positioning block 5 disposed on the fixed tray 3 is restrained on the fixed tray 3. Since the hole portion 4 is rotated upward, it is possible to surely prevent the support block body 7 from exceeding the placement region R and to overlap the positioning block 5 and the glass substrate 2 vertically.

In contrast to the prior art (Patent Document 1: Japanese Patent No. 50693382), the prior art includes a coupling member that is loosely inserted into a lateral through hole of the positioning pin, and is loosely inserted. The positioning pin in the relaxation hole is configured to be in a protruding state toward the positioning pin on the fixed disk. However, in the configuration of the prior art, the positioning pin cannot be properly supported without shaking the vibration, and therefore, it is difficult to safely The positioning is performed so that the glass substrate is not damaged. However, the present embodiment having the above configuration is different from the prior art, and even if the pin portion 8 and the hole portion 4 are in a relaxed state, the positioning block 5 can be surely supported, and The positional interference with the glass substrate 2 can be reliably prevented, and the positioning function of holding the glass substrate 2 at the position on the fixed disk 3 can be greatly improved.

Since the top surface shape of the support block portion 7 is formed into a spindle shape in which the center portion in the longitudinal direction is the widest, or is formed by adding a cone, even if there is a gap between the connecting rod 6 and the insertion portion 10 (hole 11) By slightly rotating the positioning block 5, it is possible to surely prevent the support block body 7 from exceeding the placement area R.

Since the insertion portion 10 is configured as a recessed hole or a hole 11 that communicates with the through hole 9, and the insertion portion 10 does not penetrate toward the opposite side of the support block portion 7, it is possible to prevent insertion into the support block body portion via the insertion portion 10. The connecting rod 6 of 7 is separated from the one end portion in the left-right direction of the support block portion 7 toward the other end portion and is detached.

Since the outer diameter of the pin portion 8 is set to be the same as the maximum width dimension of the support block portion 7 (the width dimension of the position of the protruding tip 7e), it is possible to surely prevent the glass substrate 2 from being placed on the fixed disk 3 or A situation occurs when the fixed disk 3 is removed when it is removed.

Since the through hole 9 that communicates with the hole 11 is formed in the vertical direction from the support block body 7 to the pin portion 8 in the positioning block 5, even if dust enters the hole 11, it can be discharged so as not to exist. Accumulated inside. Since the support block body portion 7 and the pin portion 8 are arranged up and down to form the positioning block 5, it is possible to prevent the upside down from being reversed during the process.

The external shape of the positioning block 5 may be any form as long as it has the functions described in the above embodiment. In Fig. 6, a modification is shown for the outer shape of the positioning block 5. Here, the description of the same configuration will be omitted, and only the differences will be described. In the positioning block 5 of the modification, the support block body portion 7 is formed in a rectangular parallelepiped shape, and is integrally formed in a pair of right and left sides on the left and right sides of the cylindrical pin portion 8. In other words, when viewed from the support block portion 7, the pin portion 8 is formed integrally from the support block body portion 7 as in the above-described embodiment. At a position higher than the support block portion 7, a truncated cone portion 8a which is formed to be narrower toward the upper side is formed, and is disposed directly above the pin portion 8. The truncated cone portion 8a is smoothly connected to the pin portion 8 and functions as the above-described slope 7d. The outer diameter of the pin portion 8 is set to be larger than the width direction of the support block portion 7, whereby the pin portion 8 functions as the above-described projecting portion 7c, and the outer peripheral surface of the pin portion 8 is the same as described above. The protruding tip 7e similarly positions the glass substrate 2 in a sure manner.

5‧‧‧ Positioning block

6‧‧‧ Connecting rod

6a‧‧‧End of the connecting rod

7‧‧‧Support block body

7a‧‧‧ top surface

7b‧‧‧ bottom

8‧‧‧ Department of Sales

8a‧‧‧French table

9‧‧‧through hole

9a‧‧‧ Inside the through hole

10‧‧‧Insert Department

11‧‧‧ hole

Claims (3)

A fixed disk unit is provided on a ceramic fixed plate on which a heat-treated glass substrate is placed, and a plurality of metal positioning blocks are disposed, and the plurality of metal positioning blocks are inserted in the pair of glass substrates. a plurality of holes formed at a position to be positioned and penetrated in the vertical direction, wherein the positioning block includes a support block body portion having a longitudinal direction along an arrangement direction of the hole portions and a length direction Appropriately formed with a maximum width dimension closest to the glass substrate compared to other portions, the bottom surface of which is abutted against the fixed disk, and the positioning block is integrally supported on the fixed disk; the pin portion thereof Formed from the maximum width dimension of the support block body, and inserted loosely in the hole portion; and an insertion portion formed on the inner side of the support block body along the longitudinal direction thereof; One of the pair of positioning blocks is provided with a connecting rod, the two ends of the connecting rod are inserted into the insertion portion, and the positioning block is restricted to rotate around the hole on the fixed plate The outer diameter of the connecting rod is formed so as to be slightly separated from the insertion portion, and is formed to be smaller than the inner diameter of the insertion portion to the extent that it does not damage each other during thermal expansion, and the connecting rod is When the length is extended according to thermal expansion, it has a margin with respect to the inner side of the support block body portion without interfering with each other, and is inserted into the insertion portion with a gap that does not fall off when facing one side, according to the hole. The size of the section is determined by the size of the section. The fixed disk unit according to claim 1, wherein the positioning block has a through hole that penetrates from the support block body portion until the pin portion penetrates in the vertical direction and communicates with the insertion portion. The fixed disk unit according to claim 1 or 2, wherein the support block body portion is formed to have a slope toward a peripheral portion of the glass substrate placed on the fixed disk.