CN1828384A - Brackets and spacers - Google Patents

Abstract

The invention discloses a support frame, which has at least one gasket on it, and the gasket comprises an inner surface of a through hole. When a screw is used to lock the gasket on the support frame, the surface of the screw head of the screw will be in contact with the inner surface of the through hole.

Description

Brackets and spacers

technical field

The invention relates to a supporting frame for carrying a machine platform. The gasket on the supporting frame can prevent the glass substrate from falling off due to the sliding of the glass substrate when the machine platform carries the glass substrate.

Background technique

The panel part of the LCD screen is mainly composed of two glass substrates and liquid crystal molecules between the two glass substrates. The upper glass substrate includes red, green and blue color filters (color filter) ; CF); and the lower glass substrate includes a thin film transistor (Thin film transistor; TFT) circuit on the surface to control the liquid crystal steering. The manufacturing process of the LCD screen mainly includes the pre-manufacturing process of the Array segment and the post-manufacturing process of the Cell segment.

The manufacturing process of the Array segment includes several cycles of "coating-photoresist-on-exposure-development-etching-photoresist removal" to form the TFT lines required on the LCD screen panel; and the cell segment The manufacturing process is mainly to combine the glass substrate including CF and the glass substrate including TFT circuit, and then pour liquid crystal between the two substrates to form a panel required for a liquid crystal screen. The manufacturing process includes alignment film production, adhesive coating, spacer spreading, substrate assembly, slitting, liquid crystal injection, sealing and other processes.

Due to the large size of the glass substrate, it is necessary to use a carrier machine to automatically or semi-automatically transfer the substrate between each production process station. As shown in FIG. 1 , the loading platform 108 has two support frame bodies 104 . When the glass substrate 102 is being transported, the support frame body 104 will first move below the glass substrate 102 . Then the material rack (not shown) originally carrying the glass substrate 102 will slowly lower the glass substrate 102 so that the glass substrate 102 can be placed on the support frame body 104 .

FIG. 2 is a schematic partial cross-sectional view of the supporting frame. Due to the heavy weight of the glass substrate 102 , there is a certain inertia when the carrying machine 108 moves. After the loader 108 stops, the glass substrate 102 may slide due to inertia. In order to avoid scratches on the lower surface of the glass substrate 102 due to the sliding of the glass substrate 102 when the lower surface of the glass substrate 102 is in direct contact with the support frame body 104, a gasket 106 will be added to the contact point of the support frame body 104, And be fixed with screw 110.

However, because the inner wall 112 of the washer 106 is vertical and the contact area with the screw 110 is small, the fixing effect of the screw 110 is limited. Therefore, in a relatively high-temperature manufacturing environment, or when the loading machine 108 travels at a high speed, the gasket 106 is likely to fall off due to the sliding of the glass substrate 102 . After the gasket 106 falls off, the glass substrate 102 is easily scratched due to direct contact with the screw 110 . In addition, it is also an additional cost to replace the gasket 106 lost due to shedding.

Contents of the invention

In order to improve the above disadvantages, the present invention provides a spacer on a support frame. The gasket has a through hole for the screw to pass through, the inner surface of the through hole is conical concave, and the other part is perpendicular to the bottom of the gasket; the bottom of the gasket has a contact surface with the support frame body. When the gasket is locked on the support frame body with screws, the surface of the screw head can contact the conical inner surface of the through hole to increase the fixing force, so that the gasket will not fall off due to the sliding of the glass.

In order to make the above-mentioned objects, features, and advantages of the present invention more comprehensible, preferred embodiments are specifically described below together with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of a spacer in contact with a glass substrate on a support frame of a conventional substrate transporting platform;

FIG. 2 is a schematic partial cross-sectional view of a gasket in contact with a glass substrate on a support frame of a conventional substrate transporting platform;

3 is a schematic cross-sectional view of a gasket according to a first embodiment of the present invention;

4 is a schematic cross-sectional view of a gasket according to a second embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a gasket according to a third embodiment of the present invention.

Description of main component symbols:

current technology:

102: glass substrate;

104: support frame;

106: gasket;

108: handling machine;

110: screw;

112: Vertical surface inside the through hole of the gasket.

this invention:

202: screw;

204: screw head surface;

206: screw thread;

208: gasket;

210: the through hole of the gasket;

212: the inner surface of the second through hole of the gasket;

214: the inner surface of the first through hole of the gasket;

216: the contact surface of the bottom of the gasket;

218: the thread of the gasket;

302: screw;

304: screw head surface;

306: screw thread;

308: Gasket;

310: the through hole of the gasket;

312: the inner surface of the second through hole of the gasket;

314: the inner surface of the first through hole of the gasket;

316: the contact surface of the bottom of the gasket;

318: the thread of the gasket;

320: the inner surface of the third through hole of the gasket;

402: screw;

404: screw head surface;

408: screw thread;

408: Gasket;

410: the through hole of the gasket;

412: the inner surface of the second through hole of the gasket through hole;

414: the inner surface of the third through hole of the gasket through hole;

416: the contact surface of the bottom of the gasket;

418: the thread of the gasket;

420: the inner surface of the first through hole of the gasket through hole.

Detailed ways

The spacer shown in Fig. 3 is the first embodiment of the present invention, wherein, the bottom of spacer 208 has a contact surface 216, is used for contacting with support frame body (not shown) or embedded in support frame body, also has in addition A through hole 210 allows the screw 202 to pass through. The gasket 208 can be made of rubber, plastic, other elastic and relatively soft materials, or a mixture of the above materials.

The through hole inner surface includes a first through hole inner surface 214 perpendicular to the contact surface 216 at the bottom of the pad 208, and a second through hole inner surface 212, the second through hole inner surface 212 and the contact surface 216, the first through hole inner surface 214 are not parallel, the preferred shape is a conical concave surface.

When the screw 202 locks the spacer 208 on the support frame body, the contact surface 216 of the spacer 208 is in contact with the support frame body, and the second through hole inner surface 212 of the spacer 208 can contact the inclined screw head surface of the screw 202 204 are in contact with each other to increase the stressed area. After using the spacer 208 on the supporting frame of the carrying machine, the spacer 208 will not fall off due to the sliding of the glass substrate when transporting the glass substrate. At the same time, the chance of the glass substrate being scratched by the screw 202 due to the falling off of the gasket 208 is also reduced. If the inner surface 214 of the first through hole further includes threads 218 , the threads 218 of the inner surface 214 of the first through hole of the washer 206 can be in close contact with the threads 206 of the screw 202 , which can further increase the locking effect of the screw 202 .

The gasket 308 shown in FIG. 4 is a second embodiment of the present invention, wherein the surface of the through hole 310 has three-stage changes. The first section is the inner surface 314 of the first through hole perpendicular to the contact surface 316 at the bottom of the gasket 308, the last section is the inner surface 312 of the second through hole, and the middle section is the third through hole connected at one end to the inner surface 312 of the second through hole. The inner face 320 of the hole.

Likewise, the inner surface 312 of the second through hole of this gasket is not parallel to the contact surface 316 , and the inner surface 314 of the first through hole is preferably a conical concave surface. The inner surface 312 of the second through hole of the washer 308 can be in contact with the inclined screw head surface 304 of the screw 302 to increase the force bearing area. Even when the shape of the screw head of the screw 302 is changed, the surface 304 of the screw head can further contact the inner surface 320 of the third through hole to further increase the force bearing area. After using the spacer 308 on the supporting frame of the carrying machine, the spacer 308 will not fall off due to the sliding of the glass substrate when transporting the glass substrate. At the same time, it also reduces the chance of the glass substrate being scratched by the screw 302 because the gasket 308 falls off. If the inner surface 314 of the first through hole has threads 318 , and the inner surface 314 of the first through hole of the washer 308 is closely combined with the threads 306 of the screw 302 , the locking effect of the screw 302 can be further increased.

The gasket 408 shown in FIG. 5 is a third embodiment of the present invention, wherein the surface of the through hole 410 has three stages of variation. The first section is the inner surface 420 of the first through hole in contact with the contact surface 416 at the bottom of the gasket, the last section is the inner surface 412 of the second through hole, and the middle is one end connected to the inner surface 412 of the second through hole, and is in contact with the second through hole inner surface 412. The surface 416 is perpendicular to the inner surface 414 of the third through hole.

The inner surface 420 of the first through hole of this kind of gasket 408 is a conical concave surface. space may be deformed. Part of the air in the space will be squeezed out so that the gasket 408 has an adsorption effect like a suction cup.

Similarly, the inner surface 412 of the second through hole and the contact surface 416 of the gasket, and the inner surface 420 of the first through hole of this gasket are not parallel, and the preferred shape is a conical concave surface. The inner surface 412 of the second through hole of the washer 408 can be in contact with the inclined screw head surface 404 of the screw 402 to increase the force bearing area. If the inner surface 414 of the third through hole is threaded, the inner surface 414 of the third through hole of the washer 408 and the thread 406 of the screw 402 are more closely combined, which can further increase the locking effect of the screw 402 .

Although the present invention has been disclosed in conjunction with the above preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art can still make some changes and modifications without departing from the spirit and scope of the present invention. Therefore The scope of protection of the present invention should be defined by the claims.

Claims (12)

1. A gasket, comprising: a contact surface; an inner surface of the first through hole, one end of which is connected to the contact surface; An inner surface of a second through hole is not parallel to the inner surface of the first through hole and the contact surface. 2. The gasket as claimed in claim 1, wherein the inner surface of the first through hole is perpendicular to the contact surface. 3. The gasket according to claim 2, wherein the inner surface of the first through hole comprises threads. 4. The gasket as claimed in claim 1, wherein the inner surface of the first through hole is a conical concave surface. 5. The gasket as claimed in claim 1, wherein the inner surface of the second through hole is a conical concave surface. 6. The gasket according to claim 1, wherein the gasket is made of rubber, plastic or a mixture of the above materials. 7. The gasket of claim 1, further comprising: An inner surface of a third through hole, one end of which is connected to the inner surface of the second through hole, and is located between the inner surface of the first through hole and the inner surface of the second through hole. 8. The gasket according to claim 7, wherein the inner surface of the third through hole is perpendicular to the contact surface. 9. The gasket according to claim 8, wherein the inner surface of the third through hole comprises threads. 10. A support frame comprising: a support frame body; a spacer, consisting of: a contact surface; an inner surface of the first through hole, one end of which is connected to the contact surface; an inner surface of a second through hole, which is not parallel to the inner surface of the first through hole and the contact surface; and A screw is used to lock the washer on the support frame body, and the screw includes a screw head surface, and the screw head surface fits on the inner surface of the second through hole. 11. The support frame as claimed in claim 10, wherein the inner surface of the second through hole is a conical surface. 12. The support frame of claim 10, wherein the spacer further comprises: An inner surface of a third through hole, one end of which is connected to the inner surface of the second through hole, and is located between the inner surface of the first through hole and the inner surface of the second through hole.

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