JPH0427542Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is suitable for being attached to the top plate of a laboratory table for chemical experiments, especially wet experiments - experiments that handle liquids such as solutions and solvents. It is about the edge.

[Conventional technology]

On the edge of the top plate of a conventional laboratory bench suitable for wet experiments, there is usually a band-shaped molded product made of synthetic resin having a generally h-shaped side cross section and whose upper end protrudes from the top surface of the top plate. installed.

That is, FIG. 1 is a partially enlarged side view of the top plate, and in this figure, 1 is the top plate, 2 is the core material of this top board 1 made of lauan laminated plywood, etc., and 3 is the surface of this core material 2. Surface materials such as polypropylene and polyvinyl chloride laminated on synthetic resins with excellent water resistance and chemical resistance, 4
5 is a horizontal groove provided approximately at the center of the outer peripheral end surface of the core material 1;
6 is a conventional edge material for a top plate that is attached around such a top plate 1, and includes a vertical wall 6a that is slightly longer than the thickness of the top plate 1, and a vertical wall 6a that is slightly longer than the thickness of the top plate 1. It has a wedge-shaped central protruding wall 6b that protrudes inward from approximately the center of the vertical wall 6a, and a lower protruding wall 6c that similarly protrudes inward from the lower end of the vertical wall 6a.
Conventionally, this top plate edge material 6 was attached to the outer periphery of the top plate by fitting the central protruding wall 6b into the horizontal groove and fitting the lower protruding wall 6c into the stepped portion 5 using an appropriate adhesive. It was getting worse.

Note that 7 is a caulking material that fills the space between the vertical wall 6a of the edge material 6 and the surface material 3 of the top plate 1.

[The problem that the idea attempts to solve]

However, the edge material 6 attached to the conventional top plate 1 is designed to prevent liquids such as solutions and solvents from spilling over the top of the vertical wall 6a to the outside of the top plate 1. Since it is attached so as to protrude slightly upward, there is a problem particularly when a force directed outward from the surface of the top plate 1 is applied.

That is, when a strong force toward the outside of the top plate 1 acts on the portion of the vertical wall 6a that protrudes from the surface material 3 of the top plate 1,
There is a risk that a gap may occur between the vertical wall 6a and the caulking material 7, or that the central projecting wall 6b may fall out of the horizontal groove 4.

This is a problem that cannot be overlooked when used as a top plate for a laboratory bench for wet experiments, and urgent improvement is desired.

In addition, the caulking material 7 buried around the top plate 1 is a necessary member to maintain watertightness between the top plate surface material 3 and the vertical wall 6a, but it is exposed on the top surface of the top plate. It could not be said that it was very presentable from the outside.

[Means to solve the problem]

The present invention was made with the aim of solving the above-mentioned drawbacks of the edge of the conventional top plate and problems with the appearance of the top plate, and its structure includes a horizontal groove provided approximately in the center of the side surface, A top plate for a laboratory bench for wet experiments that is attached around a top plate made by laminating a surface material with excellent water resistance and chemical resistance on the top surface of a flat core material of appropriate thickness with a step at the bottom. It's Edge,
a vertical wall that comes into contact with the side surface of the top plate; a central projecting wall that projects forward from approximately the center in the height direction of the vertical wall and is fitted into the horizontal groove; and a central projecting wall that extends forward from the lower end of the vertical wall. a lower protruding wall that protrudes toward the step and is fitted into the stepped portion; a horizontal portion that is bent forward from the upper end of the vertical wall; and a sloped portion that abuts the surface material, and a gap formed between the horizontal portion and the lower surface of the sloped portion and the top surface of the surface material is filled with a caulking material to be brought into close contact with the surface material. It is characterized by consisting of an upper projecting wall that looks like this.

[Effect]

The top plate edge of the experimental table for wet experiments of this invention is
The front part of the upper projecting wall is inclined and is fixed around the top plate so as to be in close contact with the surface material of the top plate, so it can sufficiently withstand even if a force directed toward the outside of the top plate is applied to this part. At the same time, together with the effects of the central projecting wall and the lower projecting wall, it is firmly attached to the outer circumferential surface of the top board at three locations on the side end surface of the top board.

In addition, the upper projecting wall is located above the surface material of the top plate, and the tip side of this projecting wall is sloped, and it is in close contact with the surface material at two locations on the inner surface of the projecting wall. Since it is formed so as to be able to prevent chemical liquids spilled on the top plate from going around to the bottom side of the top plate, it is possible to maintain almost perfect watertightness.

Furthermore, since the caulking material is not exposed to the outside as in the case of using a conventional edge, the appearance is also good.

〔Example〕

Next, an example of implementation of the present invention will be explained with reference to FIG.

FIG. 2 is a partially enlarged side cross-sectional view showing the configuration of the top edge portion of a wet experiment bench according to an embodiment of the present invention.

In FIG. 2, 11 is a top plate, and 12 is a core material of this top plate 11 made of lauan laminated plywood. Incidentally, the back surface of this core material 12 is appropriately waterproofed. In addition, the core material 12 may be made of any other appropriate material and structure, such as one in which paper honeycomb is sandwiched between water-resistant plywood sheets and laminated in the shape of a sandwich.

13 is a water resistant layer laminated on the upper surface of the core material 12;
Surface materials with excellent chemical resistance, such as synthetic resin plates such as polyvinyl chloride, polyvinylidene chloride, polypropylene, epoxy resin, and melamine resin,
Alternatively, a plate material such as tempered glass or ceramics is used.

Reference numeral 14 designates a horizontal groove provided on the side surface of the core material 12 at approximately the center in the thickness direction thereof, and reference numeral 15 designates a step portion similarly formed at the bottom.

Reference numeral 16 denotes an edge material of the top plate of the experimental bench for wet experiments of the present invention, which is attached around the top plate 11, and includes a strip-shaped vertical wall 16a having a height (width) larger than the thickness of the top plate 11; A central projecting wall 16b and a vertical wall 16 protruding inward from approximately the central portion of the vertical wall 16a.
Lower protruding wall 16c protruding inward from the lower end of a
and an upper projecting wall 17 described below.

That is, the upper protruding wall 17 is formed by a horizontal part 17a bent at a right angle from the upper end of the vertical wall 16a inward (towards the surface material of the top plate), and a downward slope forward from the front end of the horizontal part 17a. An inclined portion 17b and a protrusion 17c provided on the lower surface of the horizontal wall 21 as necessary.
It is formed from. Here, the tip of the inclined portion 17b and the lower surface of the protrusion 17c are formed horizontally, and are brought into close contact with the surface material 13 made of synthetic resin.

The inner surface of the vertical wall 16a is formed with many irregularities or waves in order to improve adhesion, and the side surface of the central projecting wall 16b is provided with wedge-shaped teeth to prevent it from coming off the horizontal groove 14. has been done.

The top plate edge material 16 of the present invention is attached to the periphery of the top plate 11 using an adhesive such as epoxy. In addition, the lower projecting wall 16c is
The point that the upper protruding wall 17 is fitted into the stepped portion 15 is the same as that of the conventional one, but the upper projecting wall 17 is brought into close contact with the surface material 13 with the lower surface of the tip of the inclined portion 17b and the lower surface of the protrusion 17c. differ in terms of

That is, the space formed by the lower surface of the upper projecting wall 17 and the outer surface of the surface material 13, the inclined surface 17b and the projecting ridge 17c
Seal agent 1 using epoxy adhesive etc. on the bottom surface of
8 is filled and applied, and an adhesive/caulking material 19 is filled between the surface material 13 and the upper projecting wall 17, so that the edge material 16 is attached to the top plate 1.
1 in a watertight manner.

The edge of the top plate for a laboratory table for wet experiments of the present invention is as described above, and its constituent materials are water resistant,
Since it is a synthetic resin such as polyvinyl chloride or polypropylene that has excellent chemical resistance, it is extremely easy to mold, and it is also easy to apply coloring as appropriate during molding.

[Effect of idea]

Since the top plate edge for a laboratory table for wet experiments of the present invention is as described above, it can sufficiently withstand even if a force directed toward the outside of the top plate is applied. This is because the upper and lower protruding walls and the central protruding wall are attached to the top plate so that the outer circumference of the top plate is held between them, so there is no risk of it being removed from around the top plate during use. be.

In other words, when attaching or removing experimental equipment that is erected by holding the front and back surfaces of the top plate with clamps, etc. , or if the clamp on this experimental tool loosens and is about to come off, by being caught by the clamp, etc.,
There have been accidents where the edge material has been damaged or come off, but this does not occur with the present invention.

In addition, the lower surfaces of the bent horizontal and inclined parts of the upper projecting wall are in close contact with the surface material, ensuring perfect watertightness and preventing the caulking material from being exposed to the outside. It also has a good appearance.

Furthermore, since the edge of the present invention has a simple shape, by continuously molding it by extrusion molding or the like, the cost is almost the same as that of conventional top plate edge production. It should be noted that the edge of the present invention can of course be applied not only to a laboratory bench for wet experiments but also to other laboratory benches.

[Brief explanation of drawings]

Fig. 1 is a partially enlarged side sectional view showing the structure of the edge part of a conventional top plate for a wet experiment bench, and Fig. 2 shows an example of the structure of the edge part of the top plate for a wet experiment bench according to the present invention. It is a partially enlarged side sectional view shown. 11...Top plate, 12...Core material, 13...Surface material, 14...Horizontal groove, 15...Step part, 16...Top plate edge material, 16a...Vertical wall, 16b...Central projecting wall , 16c... lower projecting wall, 17... upper projecting wall, 1
7a...Horizontal part, 17b...Slope part, 17c...
Projection, 18...adhesive.

Claims (1)

[Scope of utility model registration request] Installed around a top plate made by laminating a surface material with excellent water resistance and chemical resistance on the top surface of a flat core material of appropriate thickness with a horizontal groove in the center of the side surface and a step at the bottom. The edge of a top plate of a laboratory bench for wet experiments, which includes a vertical wall in contact with the side surface of the top plate, and a vertical wall protruding forward from approximately the center in the height direction of the vertical wall and fitted into the horizontal groove. a central projecting wall that is bent forward from the top end of the vertical wall; a lower projecting wall that projects forward from the bottom end of the vertical wall and is fitted into the step; It has a horizontal part and an inclined part that is continuous with the horizontal part and whose lower surface on the front end side contacts the surface material, and the lower surface of the horizontal part and the inclined part is formed between the upper surface of the surface material. A top plate edge of a laboratory table for wet experiments, characterized by comprising an upper projecting wall having a gap filled with caulking material so as to be in close contact with the surface material.