JP2012024732A - Laboratory table with exchangeable decorative board, and method of fixing decorative board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laboratory table whose decorative board can be easily inexpensively exchanged, and to provide a method of fixing the decorative board.SOLUTION: The laboratory table 1 includes: an exchangeable decorative board 3; a support member 2 for supporting the decorative board; the engaging protrusions (20a, 20b) protruded upward by bending and raising the positional portions of a plate material composing the upper face of the support member; and an engaging hole 30 having an engagement-receiving part 30a which is made by boring the lower face of the decorative board to receive the engaging protrusions, and an engaging groove 30b which is also made by boring the lower face of the decorative board, is formed with an opening width narrower than the engagement-receiving part and communicates with that part. Since the engaging protrusions on the upper face of the support member are locked in the engaging groove of the lower face of the decorative board, the decorative board and the support member are fixed.

Description

  The present invention relates to an experimental table and a method for fixing a decorative plate that can be easily and inexpensively replaced.

  The upper surface of a laboratory table used in chemical experiments and the like often causes surface scratches and dirt due to the adhesion of various types of chemicals. Exchange to a decorative board is required.

  Conventionally, since the decorative board is bonded to the base (the core material of the top board) with an adhesive, it was impossible to discard the entire experimental table and replace only the decorative board. However, reducing the amount of waste as much as possible is strongly desired for environmental protection.

  In Patent Document 1, a projecting member formed by a screwed screw member having an engaging head protrudes from the upper surface of a supporting member that supports the decorative plate, and is engaged with the rear surface of the decorative plate. Disclosed is an environmentally-friendly experimental table in which a receiving hole capable of receiving a head and an engaging hole having a slide groove communicating with the receiving hole is formed, and only a decorative plate that needs to be replaced can be replaced. Has been.

JP 2004-121913 A

  However, since the engaging head of the support member is formed of a screw member in the experimental table of Patent Document 1, it takes time to install and adjust the screw. Further, further cost reduction is desired.

  In view of the above-described technical background, an object of the present invention is to provide an experimental table and a method for fixing a decorative plate, which can replace the decorative plate more easily and inexpensively.

  That is, this invention has the structure as described in following [1]-[3].

[1] An experimental table comprising a replaceable decorative plate and a support member for supporting the decorative plate,
An engagement protrusion that bends and partially protrudes a part of the plate material constituting the upper surface of the support member;
An engagement receiving portion that is formed in a lower surface of the decorative plate and that can receive the engaging protrusion, and is formed in an opening width that is formed in the lower surface of the decorative plate and is smaller than the engagement receiving portion; An engagement hole having an engagement groove communicating with the joint receiving portion;
With
An experimental table, wherein the decorative plate and the support member are fixed by the engagement protrusions on the upper surface of the support member being locked by the engagement groove portions on the lower surface of the decorative plate.

  [2] The item 1 described above, wherein the engagement protrusion provided on the upper surface of the support member is formed of a pair of facing protrusions protruding by bending the support member at an acute angle. The test bench described in 1.

  [3] Slide the decorative board of the experimental table described in the preceding item 1 or 2 along the length direction of the engaging groove, and insert the engaging protrusion into the engaging hole of the decorative board. A method for fixing a decorative board, comprising fixing the decorative board to a support member.

  According to the experimental table described in [1] above, the decorative plate is fixed by receiving the engaging protrusion in the engaging receiving portion and sliding the engaging protrusion into the engaging groove to engage the decorative plate and the support member. be able to.

  Further, since no separate parts such as a screw member are required, the part cost can be reduced. Furthermore, the labor and trouble of screw installation work and adjustment work are eliminated, and work costs are eliminated.

  According to the experimental table described in [2] above, a large difference occurs between the upper width and the lower width of the engaging protrusion, and the decorative plate and the support member can be more reliably fixed.

  According to the method for fixing a decorative board described in [3] above, the decorative board and the support member are engaged by receiving the engaging protrusions in the engaging receiving part and sliding the engaging protrusions into the engaging groove part. Can be reliably prevented from moving in the vertical direction.

  Further, since no separate parts such as a screw member are required, the part cost can be reduced.

It is a perspective view of the decorative board and supporting member which the experimental stand concerning one Embodiment of this invention has. It is a general view of the experimental stand in FIG. It is explanatory drawing of the supporting member in FIG. It is a top view which shows the back surface of the decorative board in FIG. (A) is sectional drawing of the D1-D1 line in FIG. 4, (b) is sectional drawing of the D2-D2 line in FIG. 4, (c) is sectional drawing of the D3-D3 line in FIG. It is explanatory drawing as an example of the fixing method of the decorative board in FIG. It is explanatory drawing as an example of the fixing method of the decorative board in FIG. It is explanatory drawing of the fixing method of the experimental stand in FIG.

  1 to 8 show an embodiment of an experimental table 1 including a work table in which the decorative board 3 of the present invention can be replaced.

  The experimental table 1 shown in FIG. 2 is obtained by mounting and fixing a decorative plate 3 as a top plate on the upper surface of a base 200 on which a plurality of frame members 201 are assembled and fixed. A support leg member 203 serving as a leg of the base 200 is provided at the lower part of the base 200, and is configured by the plurality of members 201 and 203 and the partition plate 202 described above.

  A frame member 25 and a support member 2 are provided on the upper surface of the base 200. The frame members 201 and 25 and the support member 2 are formed of a metal such as steel, for example, and each member is welded and fixed to the upper surface of the base 200.

  The support member 2 is provided so as to be laid across the frame member 201 provided on the upper surface of the partition plate 202 and each side surface of the experimental table 1.

  As shown in FIG. 1, for example, the support member 2 is formed such that one side surface is cut and a cross section in the width direction has a C shape. On the upper surface of the support member 2, there is provided an engagement protrusion 20 that is bent up and protrudes upward by bending a part of the plate material constituting the upper surface of the support member 2. An engagement hole 30 to be described later is formed in the lower surface of the decorative board 3.

  With such a configuration, the experimental table 1 is formed by the support member 2 fixed to the upper surface of the base 200 and the decorative plate 3 engaging with each other.

  The configuration of the base 200 constituting the experimental table 1 and the shape of the support member 2 are not limited to this. At least the engaging protrusion 20 is provided on the upper surface of the support member 2, and the decorative plate 3 It may be the experimental table 1 in which the engagement hole 30 is formed on the lower surface. The support member 2 may be fixed to the upper surface of the base 200, or the support members 2 may be fixed to each other.

(About the engaging protrusion 20)
Referring to FIGS. 3A, 3B, and 8, the engagement protrusion 20 is formed by bending the notched portion formed in the upper surface of the support member 2 by bending. It is formed as. The engaging protrusions 20 are arranged in the intermediate portion in the width direction of the support member 2 and are provided in a plurality at predetermined intervals (for example, 25 cm) in the longitudinal direction.

  As shown in the cross-sectional view of FIG. 3B, for example, the engaging protrusion 20 includes two protrusions 20a and 20b. The protrusions 20a and 20b are bent and raised so as to face each other with a minimum width Y.

  The engagement protrusion 20 is bent and raised in a longitudinal shape at a predetermined angle (for example, θ = 45 degrees), for example. An arc having a predetermined radius value (for example, 0.2 mm) is formed at the corner of the bent protrusion. The predetermined angle can be appropriately set within a range in which an angle θ formed by the upper surface of the support member 2 and the engagement protrusion 20 forms an acute angle.

  When the engaging protrusion 20 is bent and raised at a predetermined angle θ, the upper portion of the engaging protrusion 20 has the maximum width X, and the lower portion, which is the connecting portion with the support member 2, has the minimum width Y.

  In addition, the shape of the engagement protrusion part 20 may be any shape such as a triangle or an arc, and is not particularly limited.

(About decorative board 3)
For example, a melamine resin, a ceramic, a thermosetting resin, or the like is employed as the material of the decorative board 3, but is not particularly limited thereto.

  As shown in FIGS. 4 to 6, the lower surface of the decorative plate 3 is provided with a plurality of engagement holes 30 that are equal in number or larger than the number of the engagement protrusions 20. The engagement hole 30 is configured by forming an engagement receiving portion 30 a and an engagement groove portion 30 b on the lower surface of the decorative plate 3.

  The engagement receiving portion 30a is configured to receive the engagement projection portion 20, and the engagement groove portion 30b is configured to communicate with the engagement receiving portion 30a with an opening width smaller than the engagement receiving portion 30a. ing.

  As shown in the sectional view of the engagement receiving portion 30a in FIG. 5A, the opening width of the engagement groove portion 30b is smaller than the opening width of the engagement receiving portion 30a.

  As shown in FIG. 6A, for example, the opening width A of the engagement receiving portion 30 a is sufficiently larger than the maximum width X of the engagement protrusion 20. Therefore, the structure is such that the engagement protrusion 20 can be easily fitted into the engagement receiving portion 30a.

  Note that the opening width A of the engagement receiving portion 30a is set according to the maximum width of the engagement projection portion 20, and may be formed in a size that allows the engagement projection portion 20 to be sufficiently inserted.

  As shown in FIGS. 5B and 6B, the opening width B of the engagement groove 30 b is formed to be equal to or substantially equal to the minimum width Y of the engagement protrusion 20. Further, the angle C of the engagement groove 30b is equal to or substantially equal to the angle θ of the engagement protrusion 20 described above. In other words, the angle is such that the engagement protrusion 20 can be fitted into the engagement groove 30b.

  The shape of the engagement groove 30b is not limited to this, and the end side of the engagement groove 30b may have a narrower width than the opening communicating with the engagement receiving portion 30a. In that case, it forms so that the cross-sectional shape of the engagement protrusion part 20 may become narrow in the insertion direction to the engagement groove part 30b. That is, the engagement groove portion 30b and the engagement projection portion 20 are formed so that the cross sections thereof are narrowed in the insertion direction, and the engagement projection portion 20 is slid in the engagement groove portion 30b direction, so that a strong fitting state is obtained. It may be configured to be obtained.

  Further, for example, the engagement groove 30b has an opening width formed with a predetermined thickness from the lower surface of the decorative plate 3 and in the vicinity of the minimum width Y of the engagement protrusion 20, and the engagement groove 30b has a decorative width. On the upper surface side of the plate 3, the engagement protrusion 20 may have an opening width of the maximum width X.

  As shown in FIG. 5C, the engagement hole 30 is formed to be parallel to the lower surface of the decorative plate 3. In addition, the magnitude | size of the engagement acceptance part 30a should just be a magnitude | size large enough to insert the engagement protrusion part 20. As shown in FIG. Moreover, the shape of the engagement receiving part 30a should just be a shape which can receive the engagement protrusion part 20, and is not specifically limited.

  Thus, the shape of the engagement hole 30 is configured by utilizing the characteristics of the shape of the engagement protrusion 20 shown in the cross section of the support member 2 in the width direction. With such a configuration, the engagement protrusion 20 is received in the engagement receiving portion 30a and is slid into the engagement groove 30b to engage the decorative plate 3 and the support member 2, whereby the decorative plate 3 is moved in the vertical direction. Can be reliably prevented.

(Fixing method of decorative panel 3)
Based on the cross-sectional view of the experimental table 1 shown in FIGS. 7A and 7B, a method for fixing the decorative board 3 will be described.

  First, as shown in FIG. 7A, the engaging protrusion 20 provided on the support member 2 is inserted into the engaging receiving portion 30 a of the decorative plate 3.

  Then, as shown in FIG. 7B, the decorative board 3 is fixed to the support member 2 by sliding the decorative board 3 in a direction in which the engaging protrusion 20 is fitted in the engaging groove 30b.

  As described above, the engagement protrusion 20 on the upper surface of the support member 2 is fitted into the engagement receiving portion 30a on the lower surface of the decorative plate 3, and then locked with the engagement groove 30b, thereby supporting the decorative plate 3 and the support plate 3. The member 2 is configured to be fixed.

  As described above, the decorative plate is fixed by sliding the decorative plate 3 of the experimental table 1 along the length direction of the engaging groove portion 30b, so that the engaging protrusion 20 is engaged with the engaging plate 30. The decorative plate 3 is fixed to the support member 2 by being fitted into the joint hole 30.

  Although the experimental bench 1 illustrated in the above description is a single desk, a plurality of the experimental benches 1 may be connected and arranged in one or two rows.

  As described above, the engagement protrusions 20 are preferably provided so as to face each other in a pair, but the present invention is not limited to this. For example, it may be a single protrusion that bends and raises the support member 2 at a predetermined angle. Further, for example, the support member 2 is bent and raised at a predetermined angle, and the protrusions are arranged at predetermined intervals. Each protrusion may be an engagement protrusion provided so as not to face the pair of protrusions. Good.

  In this way, when the engagement protrusion is a single protrusion, the support member 2 may be bent at an acute angle or an obtuse angle, and the shape of the engagement hole 30 is the bending of the engagement protrusion 20. What is necessary is just to form in the shape suitable for the raising angle.

  Further, the engaging protrusion 20 may be provided on the frame member 25 provided on the upper surface of the base 200 to function as the support member 2. In this case, it is not necessary to provide the engaging protrusion 20 on all the members provided on the upper surface of the base 200. In any of the embodiments, it is not necessary to limit the engagement protrusions 20 to be arranged at a predetermined interval, and the engagement protrusions 20 are provided at places where the decorative plate 3 and the support member 2 need to be fixed. Should just be arranged.

  Further, as described above, the engaging projection 20 is not provided only on the frame constituted by the support member 2 and the frame member 25 to support the decorative plate 3, but the frame constituted by the support member 2 and the frame member 25. A member functioning as the support member 2 may be provided inside. For example, a member provided with the engaging protrusion 20 may be provided so as to be laid on each support member 2 or parallel between the two support members 2. And the member provided with the engagement protrusion part 20 in the frame comprised by the frame member 25 may be provided diagonally. The member provided with the engaging protrusion 20 may be used not only as a member for engaging and fixing the decorative plate 3 but also as a reinforcing member of the experimental table 1. Such a configuration is preferable because the strength of the experimental table 1 is increased.

  In any case, the engagement protrusion 20 is provided so as to coincide with the direction of the engagement hole 30 provided in the decorative plate 3. If necessary, a reinforcing member that reinforces each member may be provided, and the engaging protrusion 20 may be provided on the reinforcing member.

  The position and the number of the engaging protrusions 20 provided on the support member 2 are not particularly limited. Similarly, the position and the number of the engagement holes 30 provided on the lower surface of the decorative board are not particularly limited.

  As described above, the configuration as described above eliminates the need for a separate component such as a screw member, thereby reducing the component cost. Furthermore, the labor and time required for screw installation and adjustment are eliminated, and the work cost is eliminated.

  All the numerical values in the above description are design items and are not limited to the embodiments.

  The embodiment described above is merely an example of the present invention, and it is needless to say that the specific configuration and the like can be appropriately changed and designed within the scope of the effects of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Experimental stand 2 ... Support member 20 (20a, 20b) ... Engagement protrusion part 3 ... Cosmetic board 30 ... Engagement hole 30a ... Engagement receiving part 30b ... Engagement groove part

Claims (3)

An experimental table comprising a replaceable decorative plate and a support member for supporting the decorative plate,
An engagement protrusion that bends and partially protrudes a part of the plate material constituting the upper surface of the support member;
An engagement receiving portion that is formed in a lower surface of the decorative plate and that can receive the engaging protrusion, and is formed in an opening width that is formed in the lower surface of the decorative plate and is smaller than the engagement receiving portion; An engagement hole having an engagement groove communicating with the joint receiving portion;
With
An experimental table, wherein the decorative plate and the support member are fixed by the engagement protrusions on the upper surface of the support member being locked by the engagement groove portions on the lower surface of the decorative plate.   The engagement protrusion provided on the upper surface of the support member is formed of a pair of facing protrusions protruding by bending and raising the support member at an acute angle. Experimental bench. By sliding and moving the decorative board of the experimental table according to claim 1 or 2 along the length direction of the engaging groove, the engaging protrusion is inserted into the engaging hole of the decorative board. A method for fixing a decorative plate, comprising fixing the decorative plate to a support member.

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