JPH10258892A - Movable joining mechanism and cassette for baseboard having movable part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism for joining two members at a desirable position, a cassette for baseboards having a movable part making use of this mechanism, more particularly, a cassette for baseboards which is capable of holding baseboards differing in size from one another, is easily adjustable, and is furthermore capable of dealing with large-sized baseboards. SOLUTION: The subject relates to a movable joining mechanism by which a member having a long hole 8 with stepped hollow parts 8a arranged in rows in two lateral sides is joined at a desirable position to a member with a screwed hole. To join the two members use is made of a screw 9 which has on the upper side of a screw body 9a a rotatable bush 9b of synthetic resin having a square base part 9b2 on the bottom side and parts 9b1 , 9b1 protruding in mutually opposite directions. A cassette for base boards referred to in the title is one having a movable part making use of the movable joining mechanism and designed to hold base boards differing in size.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for fastening two members at desired positions. Also, the present invention relates to a substrate cassette provided with a movable portion using a mechanism for accommodating substrates of different sizes.

[0002]

2. Description of the Related Art As a substrate cassette for accommodating substrates such as glass substrates so as to be separated from each other so as not to contact each other, a pair of opposing side surfaces of a box-shaped frame are formed by grooved side plates. 2. Description of the Related Art There is a widespread use of a substrate that allows a substrate to enter and leave between corresponding grooves of the plate. There are various shapes and designs of the grooved side plates, but basically all of them have a number of rib-shaped shelf pieces projecting in parallel from the back of the side plate at a predetermined pitch toward the inside of the cassette. It has a different shape. The gap between adjacent rib-shaped shelf pieces becomes a groove,
The substrate enters and exits there.

A cassette of this type includes, for example, Japanese Patent Application Laid-Open No. 2-295150 filed by the present applicant,
JP-A-3-133152, JP-A-5-14768
0, JP-A-6-247483, JP-A-6-247483
There are cassettes disclosed in Japanese Patent Publication No. 286812 and Japanese Patent Laid-Open Publication No. Hei 8-46022.

A cassette designed to prevent the movement and bending of the accommodated substrates is disclosed in Japanese Patent Application Laid-Open No. Hei 6-191547 filed by the present applicant. The substrate cassette designed to prevent the stored substrate from sliding down
This is disclosed in Japanese Patent Application Laid-Open Nos. 4-171965 and 8-310588, filed by the present applicant.

[0005] In order to cope with substrates of different sizes although the shapes and structures are quite different, Japanese Patent Application Laid-Open No. Hei 4-245453 filed by the present applicant discloses a substrate cassette in which the distance between side plates can be adjusted. It is shown.

In the substrate cassette disclosed in Japanese Patent Application Laid-Open No. 4-245453, a rectangular parallelepiped frame is formed by supporting opposing fixed side plates with grooves by a pair of opposing flat frames. A long side of the flat plate frame in a substrate cassette in which a grooved movable side plate having a groove facing the groove of the grooved fixed side plate is movably sandwiched between the grooved fixed side plates in the perspective direction. Is formed on the inclined surface facing outward, and the fastening between the grooved movable side plate and the plate-shaped frame is performed by using a lock angel contacting the inclined surface, and a male screw provided on the lock angel. Is screwed onto the grooved movable side plate.

When using the cassette for a substrate with a movable side plate, first, the male screw of the lock anchor is loosened to make the movable side plate with the groove movable with respect to the flat frame. Then, the grooved movable side plate is slid in accordance with the size of the substrate, and when the position is determined, the male screw of the lock anchor is tightened to fix the grooved movable side plate to the flat frame.

[0008]

SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Laid-Open No. 4-24 is disclosed.
The substrate cassette described in Japanese Patent No. 5453, in which the distance between the side plates can be adjusted, is mainly for accommodating a liquid crystal cell to be used for sealing liquid crystal. There is a limit that it is difficult to apply to a general substrate cassette in which the side surfaces to be formed are formed by grooved side plates so that substrates can enter and leave between corresponding grooves on both side plates and can be accommodated.

In particular, recently, large glass substrates are often used, and it is required to use substrates of different sizes depending on the application. There is a demand for the development of a substrate cassette that can cope with the above.

Under such a background, the present invention provides
It is an object to provide a mechanism for fastening two members at desired positions. Further, it is an object of the present invention to provide a substrate cassette provided with a movable portion utilizing the mechanism, and more specifically, a substrate cassette capable of accommodating substrates of different sizes, easily adjusting the size, and coping with a large substrate. It is intended for.

[0011]

SUMMARY OF THE INVENTION A movable fastening mechanism according to the present invention includes a member having a long hole (8) having a row of concave steps (8a) on both sides, and a member having a screw hole. the a mechanism for fastening in the desired position, portion projecting in the opposite direction (9b _1), a (9b ₁₎ has and bottom side square base (9b ₂₎ to form a resin-made bush (9b) The two members are fastened by a screw (9) having a structure rotatably provided on the upper side of the screw body (9a).

The substrate cassette provided with a movable portion according to the present invention is a box-shaped cassette having a skeleton formed by an upper frame (1), a lower frame (2) and a vertical frame (3) as a support. The movable frames for side plates (5), (5), which support the grooved side plate (4) above and below
Along the left side of the lower frame (2) and along the right side of the upper frame (1) and the right side of the lower frame (2), and the vertical stopper (6) is supported at the top and bottom thereof. Movable frames (7), (7) for the rear side of the upper frame (1) and the rear side of the lower frame (2), and these movable frames (5) , (7) upper and lower frames (1) and (2) are fastened and fixed to desired positions, and upper and lower frames (1) and (2) have row-shaped concave steps (8a) on both sides. Provide a long hole (8), movable frame (5),
(7) is provided with a threaded hole and a projecting part in the opposite direction.
(9b _1), rotatably provided a structure on the upper side of (9b ₁₎ a has and bottom side square base (9b ₂₎ to form a resin-made bush (9b) of the threaded body portion (9a) Using the screw (9), the screw
(9) is carried out by screwing into the screw holes through the elongated holes (8).

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.

<Movable Fastening Mechanism> The movable fastening mechanism according to the present invention comprises a member having an elongated hole (8) and a member having a threaded hole at a desired position by using a specific screw (9). It is a mechanism for fastening.

The former member has a row of concave steps (8a) on both sides of the long hole (8). The latter member is provided with a screw hole into which the screw (9) is screwed.

The screw (9) has overhangs (9b ₁ ) and (9b ₁ ) in opposite directions, and has a square base (9b ₁ ) on the bottom side.
b ₂ ), screw the resin bush (9b) into the screw body (9
A screw having a structure provided rotatably on the upper side of a) is used. As the material of the resin bush (9b), various resins such as polyetheretherketone, polyimide, polyetherimide, polyacetal, polyamide, ultrahigh molecular weight polyethylene, and polytetrafluoroethylene can be used. For example, a hexagonal recess is provided in the head of the screw body (9a) for fastening.

The screw (9) is formed by screwing the screw main body (9a) onto the resin bush (9b) and then forming a screwed portion, but it is particularly preferable. Screws obtained in this way
In (9), since the diameter of the threaded portion of the screw body (9a) is larger than the diameter before rolling, the screw body (9a) and the resin bush (9b) are assembled together. This is because the resin bush (9b) is rotatably provided on the upper side of the screw body (9a).

The projecting portion (9b ₁ ) of the resin bush (9b),
The (9b ₁ ) is positioned by fitting into one of the opposed concave steps (8a), (8a) formed in a row on both sides of the long hole (8). The square base (9b ₂ ) of the resin bush (9b)
When slid relative screws (9) a long hole in a loosened condition (8), keeping the orientation of the resin bush (9b) constant, overhang (9b _1), always (9b ₁₎ long hole (8) Helps to face both sides.

The screw (9) is loosened and slid with respect to the elongated hole (8), and the projecting portions (9b ₁ ) and (9b ₁ ) of the resin bush (9b) are positioned at a predetermined position. Part (8a), (8
a), and then tighten the head of the screw body (9a) with the tip of a hex wrench against the recess in the head of the screw body (9a). Fastening can be performed reliably and with good operability.

<Substrate Cassette with Moving Parts> The substrate cassette of the present invention comprises an upper frame (1) and a lower frame (2).
And a box-shaped cassette in which a skeleton is formed by a vertical frame (3) as a support. The upper and lower frames (1) and (2) can be formed in a lattice shape, for example, an “enclosed” shape or a modified shape thereof. The vertical frame (3) is the upper and lower frames (1),
It is erected on at least both ends of the left and right sides of (2), and is also erected on the middle part of the left and right sides as necessary. Upper and lower frame (1),
The material of (2) and the vertical frame (3) is resin, metal, or resin-metal composite.

The substrate is supported by a grooved side plate (4). The grooved side plate (4) has a structure in which shelves protrude from the back portion at a predetermined pitch toward the inside of the cassette. In this case, it is desirable that the shelf be slightly inclined (for example, about 1 ° to 30 °) so as to be higher toward the free end side. In addition, the shelf surface of the shelf piece is desirably formed in a chevron structure such that the central portion is slightly higher than both ends. At this time, the inclination angle formed by the chevron is set to, for example, about 1 ° to 30 °. The chevron ridge or the free end of the ridge may be slightly rounded or slightly flat. The surface of the back wall portion of each step may be formed such that a lower portion than the upper portion has an inclined surface protruding forward. Further, the surface of the back meat portion may be a tapered surface in which the center line projects slightly forward from both sides thereof. By configuring the shelves and the back portion in this way, friction when housing and taking out the substrate is significantly reduced. The width of the grooved side plate (4) is preferably set as narrow as possible to reduce the weight.

The grooved side plate (4) can be formed only of a resin, but a metal body such as aluminum or stainless steel is used as a skeleton material, and at least the front side of the back wall and the shelf are formed of a resin body. In addition, at least a part of the resin body in contact with the substrate is formed of a dust-preventing resin (for example, a non-filler natural resin that is unlikely to generate dust even by abrasion), and is formed of a resin body. The part other than the dust prevention resin may be formed of a conductive resin body (a resin having conductivity itself or a resin containing a conductive substance).

In the present invention, the movable frames for side plates (5), (5) for supporting a plurality of grooved side plates (4) on the upper and lower sides thereof are connected to the left side and lower frame of the upper frame (1).
Along the left side of (2) and along the right side of the upper frame (1) and the right side of the lower frame (2), respectively.

The number of grooved side plates (4) to be attached to the side plate movable frames (5), (5) is at least two, and at most about eight, usually three to three per side (one side) of a cassette. Approximately six.

Since the movable frame 5 for the side plate has to be screwed with the screw 9, a strong metal (aluminum or stainless steel), a resin-coated metal, or a high-strength resin is used. Preferably, it is used.

In the present invention, the movable frame for stopper (7), which supports the vertical stopper (6) on the upper and lower sides thereof,
(7) to the back side of the upper frame (1) and the lower frame.
Arrange along the back side of (2).

The number of the vertical stoppers (6) is about 1-3,
In particular, it is usually two. The vertical stopper (6)
Like the grooved side plate (4), it is desirable to have a structure in which shelves protrude from the back portion at a predetermined pitch toward the inside of the cassette.

The movable frame for stopper (7) at this time
Also, it is preferable to use metal, resin-coated metal, or high-strength resin as in the case of the side plate movable frame (5).

In the present invention, the movable frames (5) and (7) are fixed to desired positions of the upper and lower frames (1) and (2) by using the movable fastening mechanism described above. Do.

That is, these movable frames (5), (7)
In order to fasten and fix the upper and lower frames (1) and (2) at desired positions, the upper and lower frames (1) and (2) have a row of concave steps (8a) on both sides. With holes (8), movable frame (5),
(7) is provided with a screw hole. The overhang in the opposite direction (9b _1), on the upper side of (9b ₁₎ a has and bottom side square base (9b ₂₎ to form a resin-made bush (9b) of the threaded body portion (9a) A screw (9) with a rotatable structure is used.
(9) is screwed into the screw hole through the long hole (8).

<Substrate> Various substrates including a glass substrate and a ceramic substrate can be used as the substrate accommodated in the cassette having the above structure. Even if the substrate is large,
Can handle without any problems.

<Operation> In the movable fastening mechanism according to the present invention, a resin made of resin having projecting portions (9b ₁ ) and (9b ₁ ) in opposite directions and having a square bottom at the bottom side (9b ₂ ). Bush (9b)
The screw (9) having a structure rotatably provided on the upper side of the screw main body (9a), has a long hole having a row of concave steps (8a) on both sides.
Since the member provided with (8) and the member provided with the screw holes are fastened at desired positions, both members can be fastened securely and with good operability. In addition, since a resin bush (9b) is used, heat resistance, dust generation resistance, and slidability can be achieved by selecting the resin. Therefore, there is no possibility that the member having the long hole (8) is damaged or dust is generated.

Since this movable fastening mechanism is applied to a substrate cassette, the movable frame (5) for supporting the side plate with the grooved side plate (4) and the movable frame for stopper (7) for supporting the vertical stopper (6) are provided. ) Can be securely and operably fastened to desired positions of the upper and lower frames (1) and (2).

[0034]

The present invention will be further described with reference to the following examples.

Embodiment 1 FIG. 1 is a front view showing an example of the substrate cassette of the present invention. FIG. 2 is a bottom view (A in FIG. 1) of the substrate cassette of FIG.
-B-C-D sectional view). FIG. 3 is a side view of the substrate cassette of FIG. FIG. 4 is a plan view of the upper frame (1) of the substrate cassette of FIG. Fig. 5 shows a grooved side plate
(4) is a partial view, wherein (a) is a view from the inside of the cassette, and (b) is a view from the front side of the cassette.

FIGS. 6A and 6B are partial views around the installation portion of the long hole 8 of the upper frame 1, wherein FIG. 6A is a plan view, FIG. 6B is a sectional view taken along line XX of FIG. FIG. 3 is a sectional view taken along line YY of FIG.

FIG. 7 is an explanatory view of the screw (9), (a) is a sectional view of the screw (9), (b) is a plan view of the resin bush (9b), and (c) is a resin bush (9). 9B) is a front view, (D) is a bottom view of the resin bush (9b), (E) is a ZZ cross-sectional view of (B), and (F) is a screw body (9a) before rolling. Front view,
(G) is a plan view of the screw body (9a) before rolling.

The substrate cassette comprises an upper frame (1),
It consists of a box-shaped cassette with a skeleton formed by a lower frame (2) and a vertical frame (3) as a support. The upper and lower frames (1) and (2) have a grid-like shape with a cross in the middle square of the “enclosed” shape. A total of six vertical frames (3) are provided at both ends and in the middle of the left and right sides of the upper and lower frames (1) and (2). In this embodiment, the upper and lower frames (1) and (2) are formed by injection molding of a high molecular weight polycarbonate containing carbon fiber.

A narrow grooved side plate for supporting a substrate (4)
Has a structure in which shelves protrude at a predetermined pitch from the back portion toward the inside of the cassette as shown in FIG. The shelf piece is slightly inclined so as to become higher as it goes to the free end side, and the shelf surface of the shelf piece is formed in a chevron shape such that the center portion is slightly higher than both end sides. The surface near the center of the back portion of each step is designed so that the lower portion than the upper portion is an inclined surface protruding forward, and the surface near the center of the back portion is more than the both sides. The center line is a tapered surface that projects slightly forward.

In this embodiment, the grooved side plate (4) is made of aluminum as a skeletal material, and the front side, the side, the back side, and the shelf of the back portion are made of polyetherimide (natural without fillers or the like). (Resin). However, the end surface of the aluminum skeleton is exposed in the vertical direction near both sides on the back side.

The left side of the upper frame (1) and the lower frame
On the left side of (2), movable frames (5) and (5) for aluminum side plates are provided, respectively, and between the upper and lower movable frames (5) and (5) for side plates, as shown in FIG. So that four grooved side plates
(4) is supported at its upper and lower ends by screws. Similarly, on the right side of the upper frame (1) and the right side of the lower frame (2), aluminum side plate movable frames (5) and (5) are provided, respectively. In (5) and (5), four grooved side plates (4) are supported at their upper and lower ends by screws.

Further, movable aluminum frames (7), (7) for stoppers made of aluminum are arranged along the deep side of the upper frame (1) and the deep side of the lower frame (2). As shown in FIG. 1, two vertical stoppers (6) are supported at the upper and lower ends of the upper and lower stopper movable frames (7) by screws.

The upper and lower frames of the movable frames (5) and (7)
In order to fix (1) and (2) to desired positions, the following movable fastening mechanism is adopted.

That is, the upper and lower frames (1) and (2) are provided with a total of eight long holes (8) on the near side and the far side.
As shown in FIGS. 6A and 6B, row-shaped concave steps 8a are provided on both sides of each slot 8.

As the screw (9), as shown in FIG.
What consists of a metal screw main part (9a) and a resin bush (9b) made of polyetheretherketone is used.

The resin bush (9b) has overhangs (9b ₁ ) and (9b ₁ ) in opposite directions and a square base (9b ₂ ) on the bottom side.
Is formed.

The screw body (9a) is shown in FIGS.
(A hexagonal dent is provided on the head), and after being mounted on the resin bush (9b), it is rolled to form a threaded portion. In FIG. And (f), the diameter of the threaded portion is larger. Therefore, the screw main body (9a) and the resin bush (9b) are combined as one set, and the resin bush (9b) is rotatable on the upper side of the screw main body (9a).

The screw (9) is loosened and slid with respect to the elongated hole (8), and the projecting portions (9b ₁ ) and (9b ₁ ) of the resin bush (9b) are positioned at a predetermined position. Part (8a), (8
a), then tighten the top of the screw body (9a) with the tip of a hex wrench in the recess of the head, and the upper and lower frames (1), (2) with the long holes (8), The movable frames (5) and (7) having screw holes (not shown) can be securely and operably fastened.

The projecting portions (9b ₁ ) and (9b ₁ ) of the resin bush (9b) are formed on either side of the long hole (8) in a row, and are formed with any of the facing concave step portions. (8a), (8a) is inserted and positioned, and the square base (9b ₂ ) of the resin bush (9b) slides into the slot (8) with the screw (9) loosened. when moving, keeping the orientation of the resin bush (9b) constant, overhang (9b _1), because to be directed on both sides side of (9b ₁₎ elongated hole (8).

[0050]

In the movable fastening mechanism of the present invention according to the present invention, portions projecting in opposite directions _{(9b 1), (9b 1} ) has and bottom side square base (9b ₂₎ to form a resin-made bush A screw (9) having a structure in which (9b) is rotatably provided on the upper side of the screw main body (9a), a member having an elongated hole (8) having a row of concave steps (8a) on both sides. And the member provided with the screw hole are fastened at a predetermined position, so that both members can be fastened securely and with good operability. In addition, since the resin bush (9b) is used, depending on the selection of the resin,
It can be made of a material having dust resistance and slidability, and there is no possibility that the member provided with the long hole (8) is damaged or dust is generated even by friction at the time of fastening.

Since this movable fastening mechanism is applied to a substrate cassette, the movable plate for side plate (5) for supporting the side plate with groove (4) and the movable frame for stopper (7) for supporting the vertical stopper (6) are provided. ), The upper and lower frames (1), (2) can be securely fixed to predetermined positions with good operability. As a result, the substrate cassette of the present invention can accommodate substrates of different sizes and is easy to adjust,
Furthermore, it can deal with large substrates. This is also advantageous in that the types of cassettes prepared in advance can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of a substrate cassette of the present invention.

2 is a bottom view of the substrate cassette of FIG. 1 (corresponding to an ABCD cross-sectional view of FIG. 1).

FIG. 3 is a side view of the substrate cassette of FIG. 1;

FIG. 4 is an upper frame (1) of the substrate cassette of FIG. 1;
FIG.

FIG. 5 is a partial view of a grooved side plate (4).
Is a view from the inside of the cassette, and (b) is a view from the front side of the cassette.

FIG. 6 is a partial view of an upper frame (1) around a slot (8) installation portion, where (a) is a plan view and (b) is an X-
FIG. 3C is a cross-sectional view taken along the line X, and FIG.

FIG. 7 is an explanatory view of a screw (9);
(9) is a cross-sectional view, (b) is a plan view of the resin bush (9b),
(C) is a front view of the resin bush (9b), (D) is a bottom view of the resin bush (9b), (E) is a ZZ cross-sectional view of (B), and (F) is a screw body ( 9a) front view before rolling process,
(G) is a plan view of the screw body (9a) before rolling.

[Explanation of symbols]

(1) ... upper frame, (2) ... lower frame, (3) ... vertical frame, (4) ... grooved side plate, (5) ... movable frame for side plate, (6) ... vertical stopper, (7) ... stopper (8) ... slot, (8a) ... concave step, (9) ... screw, (9a) ... screw body, (9b) ... resin bush, (9b ₁ ) ... overhang, ( 9b ₂ )… base

Claims (3)

[Claims] An elongated hole (8) having a row of concave steps (8a) on both sides.
And a member for fastening a member provided with a screw hole at a desired position, and a projecting portion (9b ₁ ),
(9b ₁ ) and a screw (9) having a structure in which a resin bush (9b) formed on a square base (9b ₂ ) on the bottom side is rotatably provided on the upper side of the screw body (9a). A movable fastening mechanism for fastening both members. 2. The movable fastening mechanism according to claim 1, wherein the screw (9) is formed by rolling the screw main body (9a) onto a resin bush (9b) and then forming the screwed portion. 3. A box-shaped cassette having a skeleton formed by an upper frame (1), a lower frame (2), and a vertical frame (3) as a support, wherein a plurality of grooved side plates (4) are arranged above and below. The movable frames (5), (5) for the side plates to be supported are placed along the left side of the upper frame (1) and the left side of the lower
The movable frames (7) and (7) for stoppers, which are arranged along the right side of (1) and the right side of the lower frame (2), respectively, and which support the vertical stopper (6) above and below the upper frame (1). ) And the lower frame (2), and the upper and lower frames (1),
Fasten and fix to the desired position of (2), upper and lower frames (1),
(2) is provided with an elongated hole (8) having a row of concave steps (8a) on both sides, and the movable frames (5) and (7) are provided with screw holes,
Portion protruding in the opposite direction (9b _1), rotatable on the upper side of (9b ₁₎ a has and bottom side square base (9b ₂₎ to form a resin-made bush (9b) of the threaded body portion (9a) Screw of structure provided in
A substrate cassette provided with a movable portion, characterized in that the screw (9) is screwed into a screw hole through the elongated hole (8) using (9).