JPH03281181A - Honeycomb working board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a honeycomb working board.

More specifically, the present invention relates to a honeycomb working board for attaching various measuring instruments in a desired combination in a clean room, for example, and performing measuring operations on various precision instruments such as optical instruments.

"Prior Art" Such a honeycomb working board has surface members made of steel plates bonded to both sides of an aluminum honeycomb material constituting the main body, and a predetermined surface member is attached to the upper surface member. A large number of screw holes were provided through the hole at intervals of .

"Problem to be Solved by the Invention" By the way, in conventional honeycomb work panels like this, the main focus is on light weight, so the thickness of the upper surface member has to be adjusted to maintain flatness. It is generally set to be as thin as possible, that is, approximately 5 mm, so that measurement equipment can be firmly attached. Therefore, in order to prevent the flatness of the honeycomb working board from being compromised and to facilitate forming, in most cases, a large number of screw holes are provided through the surface member in advance, and then this surface member is bonded with an adhesive. It is molded by joining aluminum honeycomb material.

In addition, regarding the length under the neck of the mounting screw for attaching the measurement equipment, for example, the length of the mounting screw for measurement should be determined by attaching the measurement device to the perforated hole where the cell wall forming the cell of aluminum honeycomb material and the perforated hole are located facing each other. The length is such that the cell wall will not be damaged by the mounting screw when the equipment is installed, that is, the tip of the mounting screw will not protrude from the bottom surface of the surface member when the measuring equipment is installed. The length under the neck is set short.

By the way, the surface member and the aluminum honeycomb material are bonded to each other via an adhesive such as the lower surface of the surface member and the end of the cell wall forming each cell in the aluminum honeycomb material. Depending on whether a two-component resin adhesive or a film adhesive is used, even if a two-component resin adhesive is used, it may be applied to the bottom side of the surface member or aluminum honeycomb Depending on the application method, such as whether it is applied to the end side of each cell wall of the aluminum honeycomb material, the position where the screw hole exists in the aluminum honeycomb material,
In other words, the results will vary depending on whether the cell is located facing the cell wall or the hollow part of the cell, but in most cases, the heat and pressure applied during bonding will cause the material to melt once. A portion of the adhesive flows into the lower end of at least some of the screw holes, and the flowed adhesive then hardens;
In some cases, the adhesive remains attached to the inside of the screw hole, and in some cases, the threads at the lower end of the screw hole are filled to a considerable extent with the adhesive.

Therefore, when installing a measuring device using such a screw hole, the actual length of the mounting screw may be such that the tip of the thread protrudes from the bottom surface of the surface member when the measuring device is firmly attached. Even though the length is set so that there is no possibility of damage, when the mounting screw is screwed into the tapped hole, the adhesive that has adhered to the inside of the screw hole is scraped off as the mounting screw is screwed. .

Most of this scraped and powdered adhesive falls into the cell and remains there.

By the way, in a clean room, the positive pressure inside the room is usually about 1.
It is controlled at 4 atmospheres, and the temperature, humidity, etc. are also controlled to maintain predetermined conditions at all times.

Therefore, when performing various measurement work on precision equipment using a honeycomb work panel in such a lean room, for example, there may be powdered adhesive etc. stuck in the cells of the honeycomb work panel. In such cases, due to air convection in the clean room, or when vibrations occur on the honeycomb work panel, powdered adhesive that has remained stuck inside the cell may be removed. There is a risk that the particles may be scattered into the clean room through the screw hole located in communication with the cell. If powdered adhesive etc. is scattered, the cleanliness of the clean room will decrease, the function of the clean room will be impaired, and measurement equipment, precision equipment, etc. will be contaminated, making it impossible to carry out precise measurement work. It had been pointed out.

Therefore, in order to solve the above-mentioned problems, when a measuring device is firmly mounted, for example, the screw thread located at the lower end of the screw hole used for mounting the instrument may be glued over a considerable height. Even if the adhesive is buried in the adhesive, use a surface material that is thick enough to prevent the tip of the mounting screw from coming into contact with the adhesive. A screw hole that opens only on the top side of the surface member and has a depth that prevents the tip of the mounting screw from coming into contact when a measuring device is installed through a threaded hole or with a mounting screw. A honeycomb working board with a However, even when such a honeycomb work panel is used in a clean room, the function of the clean room will not be degraded. However, since the weight of the surface member increases significantly, In addition, in the latter case in particular, there was a problem in that machining screw holes was troublesome and increased costs.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a honeycomb work panel that is lightweight even when used in a clean room, without substantially impairing its lightweight properties. The object of the present invention is to propose a honeycomb work panel that does not degrade the functions of a clean room and is easy to form.

"Means for Solving the Problems" The present invention has been made to achieve the above object, and its technical solutions are as follows.

The honeycomb working board according to the present invention includes a honeycomb material made of a planar aggregate of hollow columnar cells, and surface members joined to the upper and lower cell end surfaces of the honeycomb material, and, The upper surface member is made of a metal plate having a predetermined thickness and has a large number of screw holes passing through it at predetermined intervals, and the upper surface member and the honeycomb material are bonded together using an adhesive. They are joined together via a cloth-like material impregnated by impregnation or the like.

"action" Since the present invention comprises the above means, it operates as follows.

That is, in the honeycomb working board according to the present invention, the upper surface member is constituted by a metal plate having a predetermined thickness and having a plurality of threaded holes extending therethrough at a predetermined interval, and The upper surface member and the honeycomb material are joined via a cloth-like material impregnated with an adhesive.

Therefore, when bonding the upper surface member to the honeycomb material, by applying heat and pressure, a portion of the adhesive contained in the cloth-like material interposed between the two is removed from the surface of the cloth-like material to the entire surface. It oozes out evenly and evenly. The exuded adhesive adheres substantially evenly to the entire lower surface of the surface member, and also flows into the lower end of each screw hole in substantially the same amount.

Next, by cooling the adhesive while maintaining the pressurized state and hardening the adhesive, it oozes out and adheres to the lower surface. An adhesive layer is formed in the lower end of each screw hole by the adhesive that is bonded to the material and flows into the lower end of each screw hole.

Note that when the adhesive is cured, the cloth-like body containing the adhesive is also cured at the same time. The upper surface member is thus firmly bonded to the honeycomb material.

By the way, the adhesive layer formed inside the lower end of each screw hole is partially heated and pressurized when the upper surface member is joined. As a result, the adhesive oozes out from the surface of the cloth body almost uniformly over the entire surface and flows into each screw hole in approximately the same amount, so the thickness is approximately the same. Conventionally, the thickness of this adhesive layer has sometimes been changed, for example, when approximately the same amount of two-component resin adhesive is applied directly to either the upper surface member or the honeycomb material. , when a part of the adhesive flows into some of the screw holes and adheres, and the screw thread at the lower end is buried to a considerable height, the adhesive that has adhered Its thickness is extremely thin compared to its height.

Therefore, the thickness of the surface member having a predetermined thickness, that is, the thickness of the surface member, is the same as that of a conventional mounting screw whose length under the neck is set as short as possible to securely mount the measurement device, and the thickness of the surface member. When using mounting screws with the same bottom length, it is necessary to set the thickness to be slightly thicker than the thickness of the adhesive layer than the thickness of the upper surface member of a conventional general honeycomb work board. However, since the thickness of the adhesive layer formed is extremely thin, the increase in thickness is small.

In addition, the cloth-like body interposed between the surface member and the honeycomb material is
Unlike metal plates, etc., it is light in weight, so although this honeycomb work board is slightly heavier than a conventional general honeycomb work board, it is lighter than the conventional improved honeycomb work board. is extremely lightweight.

Further, since the screw holes formed in the surface plate can be provided in advance so as to pass through the surface plate, molding of the surface member is easy.

Furthermore, the bottom surface of the screw hole in the surface member of this honeycomb work board is closed with a cloth-like material hardened with adhesive, and no matter which screw hole is used to install the measuring device, it will not be possible to install it. There is no possibility that the adhesive forming the adhesive layer will be scraped by the hammer. Therefore, even when such a honeycomb work panel is used in a clean room, the functions of the clean room will not be impaired.

"Example" Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

FIG. 1 is a longitudinal cross-sectional view of the main part of the honeycomb working board, and FIG. 2 is a partially cutaway perspective view of the entire honeycomb working board.

First, its configuration etc. will be explained.

1 is a honeycomb work board, and this honeycomb work board 1 is
It comprises an aluminum honeycomb material 2 made of a planar assembly of hollow columnar cells 3, and surface members 5 and 6 joined to the end faces of the upper and lower cells 3 of the aluminum honeycomb material 2, respectively.

To explain these in detail, first, the aluminum honeycomb material 2 constituting the main body part is made of foil-like aluminum material as a base material, and a predetermined number of these base materials are adhered to each other in a predetermined positional relationship, It is formed by stretching this in the stacking direction, and has a substantially regular hexagonal hollow columnar cell 3 with a predetermined cell size and height formed by the cell wall 4.
It is made up of a flat aggregate of , and is not only lightweight but also strong and has excellent planar accuracy.

Reference numeral 5 denotes a glass cloth 8, which is a cloth-like material, which has been impregnated with an appropriate amount of liquid adhesive 9 on the upper end surface of the cells 3 in the aluminum honeycomb material 2, that is, a glass cloth 8.
The amount of adhesive is such that the adhesive 9 contained in the glass cloth 8 can be kept contained in the glass cloth 8 without dripping when the adhesive 9 is impregnated into the glass cloth 8. Glass cloth 8 impregnated with 9
The upper surface member 5 is formed of a stainless steel plate having a large number of screw holes 7 penetrated therethrough at predetermined intervals over almost its entire surface. , its thickness is a predetermined thickness, that is, the mounting hole 13a drilled in the mounting edge 13 of the measuring instrument 12.
Insert the mounting screw 11 whose under-neck length f is set as short as possible to firmly mount the measuring device 12, and screw it into the screw hole 7 provided in the surface member 5. When the measuring device 12 is firmly attached to the surface member 5, the tip of the mounting screw 11 is attached to the adhesive layer 1, which will be described later.
0, that is, when bonding the surface member 5 to the aluminum honeycomb material 2 via the glass cloth 8 impregnated with the adhesive 9, the glass cloth 8 is heated and pressurized during the bonding process.
A part of the adhesive 9 contained in the glass cloth 8 oozes out from the surface of the glass cloth 8 over the entire surface and approximately evenly, and this oozed adhesive 9
is attached to the lower surface of the surface member 5, and each screw hole 7
After curing, the adhesive 9 flows into each screw hole 7.
The thickness is set such that it can be positioned with a slight distance from the adhesive layer 10 formed by.

Regarding the type of glass cloth 8 used in this embodiment, the denser the weave and the thinner the thickness, the more the thickness of the adhesive layer 10 formed in each screw hole 7. can be made thinner. In other words, the more such glass cloth 8 is used, the thinner the surface member 5 can be set.

In the above-described embodiment, a configuration was described in which the glass cloth 8 impregnated with the adhesive 9 by impregnation was used to join the surface member 5 and the aluminum honeycomb material 2. As for the means, for example, the adhesive 9 may be contained in the glass cloth 8 by coating.

By the way, the glass cloth 8 impregnated with the adhesive 9 may be used with the adhesive 9 uncured, but the glass cloth 8 impregnated with the adhesive 9 by impregnation or the like may be heated at an appropriate temperature for a while. It may be used after being heated to a semi-cured state. When used after semi-curing in this way,
It is easy to handle and set the glass cloth 8 and the like.

Further, the cloth-like body to be used is not limited to the glass cloth 8, and for example, woven cloth such as chemical fiber, non-woven cloth, etc. may be used.

Reference numeral 6 denotes a surface member made of a metal plate bonded to the end face of the cell 3 on the lower side of the aluminum honeycomb material 2. It is joined to the aluminum honeycomb material 2 via the agent 14.

Note that 15 is a side frame made of a metal plate joined to the side surface of the aluminum honeycomb material 2 or the like.

The honeycomb work board 1 looks like this.

Next, its operation etc. will be explained.

This honeycomb working board 1 is made of a stainless steel plate having a predetermined thickness, which is joined to the upper side of an aluminum honeycomb material 2 constituting a main body, and has a large number of screw holes 7 passing through it at predetermined intervals. The surface member 5 is coated with an appropriate amount of liquid adhesive 9.
They are joined via a cloth-like material such as glass cloth 8 impregnated with the following.

Therefore, when joining the upper surface member 5 to the aluminum honeycomb material 2, by applying heat and pressure, the adhesive contained in the glass cloth 8 etc. interposed between the aluminum honeycomb material 2 and the surface member 5 is removed. A part of the adhesive 9 oozes out from the surface of the glass cloth 8 etc. over the entire surface, and this ooze adhesive 9 adheres to the entire lower surface of the surface member 5 almost evenly, and each screw hole 7 Approximately the same amount also flows into the lower end of the . Next, by cooling the adhesive 9 while maintaining the pressurized state and hardening the adhesive 9, the adhesive 9 oozes out and adheres to the lower surface of the surface member 5.
It is joined to the aluminum honeycomb material 2 via etc., and
The adhesive 9 that has flowed into the lower end of each screw hole 7 forms an adhesive layer 10 inside the lower end of each screw hole 7 .

Incidentally, as the adhesive 9 is cured, the glass cloth 8 containing the adhesive 9 is also cured at the same time. With this, the surface member 5
is firmly joined to the aluminum honeycomb material 2.

By the way, the adhesive layer 10 formed in the lower end of each screw hole 7 is heated when the surface member 5 is bonded, due to the fact that a part of the adhesive 9 that has been previously included in the glass cloth 8 or the like by impregnation or the like is heated during bonding of the surface member 5. It is formed by the adhesive 9 that exudes almost uniformly from the surface of the glass cloth 8 etc. by applying pressure, so although it varies slightly depending on the thickness of the glass cloth 8 etc. used, the density of the weave, etc., each The thickness of each adhesive layer 10 formed in each screw hole 7 is approximately the same, and the thickness of this adhesive layer 1o is different from that of a conventional method using, for example, approximately the same amount of two-component resin adhesive. When used by directly applying the adhesive to either the joint surface of the surface member or the cell end surface of the aluminum honeycomb material, some of the adhesive may sometimes flow into some of the screw holes. The thickness of the adhesive is extremely thin compared to the height of the adhered adhesive in the case where the screw thread at the lower end is buried over a considerable height.

Therefore, the thickness of the upper surface member 5 having a predetermined thickness, that is, the thickness of the surface member 5, is as short as the length under the neck (which is set as short as possible to firmly attach the measuring instrument 12). Mounting screw 1 with the same underneck length j as the mounting screw
1, the thickness of the adhesive layer 10 is greater than the thickness of the upper surface member in a conventional general honeycomb working board.
Although it is necessary to set the adhesive layer 10 to be slightly thicker than the thickness of Extremely thin. Therefore, the thickness of the surface member 5 increases only slightly.

In addition, unlike a metal plate or the like, the cloth-like material such as the crow cloth 8 interposed between the surface member 5 and the aluminum honeycomb material 2 is light in weight. Although the weight is slightly increased compared to the honeycomb work board, when compared to the conventional improved honeycomb work board,
Extremely lightweight.

Further, since the screw holes 7 formed in the surface member 5 can be provided in advance so as to penetrate through the surface member 5, molding of the surface member 5 is easy.

Further, in this honeycomb working board 1, the lower surface of the screw hole 7 in the surface member 5 is closed with a crow cloth 8 etc. which is hardened by the hardening of the adhesive 9 contained therein, and which screw hole 7 is closed. Even when the measuring instrument 2 is mounted using the above-described method, there is no possibility that the adhesive 9 forming the adhesive layer 10 will be scraped by the mounting screw 11. Therefore, even when the honeycomb work panel 1 is used in a clean room, the functions of the clean room will not be impaired.

The above is the explanation of the operation, etc.

"Effects of the Invention" As detailed above, in the honeycomb work board according to the present invention, the upper surface member of the honeycomb work board is bonded to the honeycomb material through a cloth-like material impregnated with an adhesive or the like. By doing so, the following effects are achieved.

In other words, when this honeycomb work board is used in a clean room, it is undeniable that it is slightly heavier than the conventional general honeycomb work board, which could impair the functions of the clean room. Even when used in a clean room, it is extremely lightweight compared to the conventional improved honeycomb work panel, which poses no risk of impairing the functionality of the clean room.
As a result, the light weight, which is the main objective of the honeycomb work panel, is hardly impaired, and even when used in a clean room, precise measurement work can be performed without any deterioration of the functions of the clean room. Moreover, it is easy to mold.

As described above, the effects of the present invention are remarkable, such as eliminating the problems that existed in this type of conventional example.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view of a main part of a honeycomb working board, and FIG. 2 is a partially cutaway perspective view of the entire honeycomb working board. 1...Honeycomb work board, 2...Aluminum honeycomb material, 3...Cell, 4...Cell wall, 5...Surface member (upper side), 6...Surface Parts (lower side), 7...
...Screw hole, 8...Glass cloth, 9...Adhesive, 10...Adhesive layer, 11...Mounting screw, 1
2...Measuring equipment, 13...Mounting edge, 13a
...Mounting hole, 14...Adhesive, 15...Side frame, 9...Neck length.

Claims (1)

[Claims] A honeycomb material made of a planar aggregate of hollow columnar cells;
A honeycomb working board comprising surface members respectively joined to the end faces of the upper and lower cells, wherein the upper surface member is provided with a number of screw holes passing through it at predetermined intervals. a metal plate having a predetermined thickness, and the upper surface member and the honeycomb material are joined via a cloth-like material impregnated with an adhesive by impregnation or the like. Board.