JP7446020B1 - top plate cover - Google Patents

Abstract

The present invention provides a desk top structure, a top cover, and a desk that allow easy positioning of a decorative sheet. SOLUTION: A desk 12B includes a top cover 10, and the top cover 10 includes a desk top structure 80. The desk top structure 80 includes a plate-shaped cover portion (base) 70 having a flat placement surface Q on the top surface 70e on which an article is placed, and a plate-shaped cover portion (base) 70 having a flat placement surface Q on the top surface 70e of the cover portion (base) 70. It is provided with an annular protrusion (positioning part) 34 that is formed around the periphery to stand up from the placement surface Q and positions the decorative sheet 82 on the placement surface Q. When the side farthest from the user of the desk 12B is the front side, the near side is the rear side, the left hand side is the left side, and the right hand side is the right side, the protrusion (positioning part) 34 is placed on the placement surface Q. It is configured to be able to face the placed decorative sheet 82 from the front, back, left and right directions. The height of the protrusion (positioning portion) 34 formed at least on the rear end portion 72 of the cover portion (base) 70 is determined to be an integral multiple of the thickness of the decorative sheet 82. [Selection diagram] Figure 2

Description

Article 30, Paragraph 2 of the Patent Act applies (a) Distribution start date: November 1, 2020 Distribution location: Dai-ichi Kogyo Co., Ltd. (955-9 Oshima-cho, Higashi-ku, Hamamatsu-shi, Shizuoka Prefecture) Name of publisher: No. Ichi Kogyo Co., Ltd. (b) Publication date: January 1, 2020 Publication: Kyoiku Katei Shimbun, January 1, 2020, page 17 Publisher name: Kyoiku Katei Shimbun Co., Ltd. (c) Website publication start date: November 18, 2020 Website address: YouTube “Hirogaruzo ~ Introduction Video 221107” (https://www.youtube.com/watch?v=85IGC8MV7uo) Publisher name: Daiichi Kogyo Co., Ltd.

The present invention relates to a desk top structure configured to allow attachment of a decorative sheet, and a top cover and desk provided with the desk top structure.

In order to protect the top of a desk or cover up dirt and scratches on the top of a desk, a top cover has traditionally been attached to the top of the desk or a decorative sheet has been placed on the top of the desk. There are many things being done.

The desk top plate (top cover) disclosed in Patent Document 1 includes an extended top plate that covers the desk top plate and an extension plate that prevents the extended top plate from separating from the top plate. There is. A groove into which the tablet is inserted is formed on the top surface of the extended top plate, and the user can stand up the tablet by inserting the tablet into the groove.

Patent No. 7011872

In the desk top plate (top cover) disclosed in Patent Document 1, a user can cover the top surface of the expansion top plate by placing a decorative sheet on the top surface of the expansion top plate. However, since a groove to support the tablet is formed on the top surface of the expansion top plate, it is necessary to avoid the groove when placing the decorative sheet, making it difficult to position the decorative sheet. There was a problem.

The present invention has been made to address the above-mentioned problems, and it is an object of the present invention to provide a desk top structure, a top plate cover, and a desk that allow easy positioning of decorative sheets.

In order to achieve the above object, the top plate cover according to the present invention is characterized by a cover body having a plate-shaped cover portion that covers the top plate of the desk from above, and attachment means for attaching the cover body to the top plate. and a desk top structure constituting the top surface of the desk, the top structure including a plate-shaped base having a placement surface on the top surface on which an article is placed, and the placement surface on the top surface of the base. and a positioning portion formed around the desk to stand up from the placement surface and position the decorative sheet on the placement surface, the placement surface being formed as a flat and smooth surface, and the desk being When the side farthest from the user is the front side, the near side is the rear side, the left hand side is the left side, and the right hand side is the right side, the positioning section is configured to The cover portion is formed so as to be able to face each other from the front, back, left, and right directions, and the base portion of the desk top structure constitutes the cover portion.

According to this configuration, a desk top structure can be added to an existing desk by attaching the cover body to the top of the existing desk. Further, according to the top plate cover of the present invention, when the user wants to cover up scratches on the placement surface or decorate the desk surface, the user can place a decorative sheet on the placement surface. can. When placing the decorative sheet on the placement surface, the decorative sheet can be easily and reliably positioned by fitting the decorative sheet inside the positioning section. Further, the movement of the decorative sheet placed on the placement surface in each of the front, back, left, and right directions can be regulated by the positioning section. In addition, since the placing surface is composed of a flat and smooth surface, when no decorative sheet is placed on the placing surface, the placing surface can be used as a desk surface as is, and items can be removed from the placing surface. Falling can also be prevented by the positioning section.

Another feature of the top plate cover according to the present invention is that the positioning portion is formed in an annular shape having an inner circumferential surface along the outer circumferential surface of the decorative sheet.

According to this configuration, the movement of the decorative sheet placed on the placement surface in the front, back, left, and right directions can be reliably regulated by the annularly formed positioning portion.

Another feature of the top cover according to the present invention is that the height of the positioning portion formed at least at the rear end of the base is determined to be an integral multiple of the thickness of the decorative sheet.

In this configuration, when the height of the positioning part is set to be one times the thickness of the decorative sheet, one decorative sheet is placed on the placement surface, and the top surface and base of the decorative sheet are The top surface of the positioning portion formed at the end portion is flush with the top surface. In addition, when the height of the positioning part is set to be more than twice the thickness of the decorative sheet, when two or more decorative sheets are placed on the placement surface, the topmost decorative sheet The upper surface of the base and the upper surface of the positioning portion formed at the rear end of the base are flush with each other. Therefore, the step between the decorative sheet and the positioning portion formed at the rear end (end nearer to the user) of the base can be eliminated, thereby improving workability for the user.

Another feature of the top plate cover according to the present invention is that the height of the positioning portion formed at least at the rear end of the base is determined to be the same as the thickness of the decorative sheet.

According to this configuration, by placing one decorative sheet on the placement surface, the top surface of the decorative sheet and the top surface of the positioning portion formed at the rear end of the base are flush with each other. Therefore, the step between the decorative sheet and the positioning portion formed at the rear end (end nearer to the user) of the base can be eliminated, thereby improving workability for the user.

Another feature of the top plate cover according to the present invention is that the top cover includes a function expansion device attachment portion to which a function expansion device is attached, and when the center side of the base is the inside and the opposite side is the outside, the function expansion device attachment portion is provided. The portion has a groove formed on the upper surface of the base portion outside the inner surface of the positioning portion.

With this configuration, the function expansion tool can be easily attached to the function expansion device mounting portion by simply inserting a part of the function expansion device into the groove. Since the groove of the function expansion tool attaching part is formed outside the inner surface of the positioning part, the decorative sheet can be positioned by the positioning part even when the function expansion tool is attached to the function expansion tool attachment part.

Another feature of the top cover according to the present invention is that it includes the decorative sheet placed on the placement surface.

According to this configuration, it is possible to hide scratches that occur on the mounting surface, and also to decorate the desk surface.

Another feature of the top plate cover according to the present invention is that it includes a fixing means for fixing the decorative sheet to the placement surface.

According to this configuration, it is possible to prevent the decorative sheet from separating from the placement surface.

Another feature of the top cover according to the present invention is that the fixing means is configured to detachably fix the decorative sheet to the placement surface.

According to this configuration, the decorative sheet can be easily replaced with another decorative sheet.

Another feature of the top cover according to the present invention is that the decorative sheet has a first decorative surface provided on one surface and a second decorative surface provided on the other surface.

According to this configuration, the decorative surface can be changed simply by turning the decorative sheet upside down.

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It is a figure which shows the usage state of the top plate cover based on 1st Embodiment, (A) is a perspective view, (B) is a partial sectional view. FIG. 2 is an exploded perspective view showing the structure of the top cover and desk according to the first embodiment. It is a figure which shows the structure of the top plate cover based on 1st Embodiment, (A) is a perspective view seen from the upper surface side, (B) is a perspective view seen from the lower surface side. (A) is an enlarged view of the IVA portion in FIG. 3(A), and (B) is an enlarged view of the IVB portion in FIG. 3(B). (A) is a bottom view showing the configuration of the top plate cover according to the first embodiment, and (B) is an enlarged sectional view taken along the line VB-VB in FIG. 5(A). (A) is an enlarged sectional view taken along the VIA-VIA line in Figure 5(A), (B) is an enlarged sectional view taken along the VIB-VIB line in Figure 5(A), and (C) is an enlarged sectional view taken along the VIC-VIC line in Figure 5(A). It is an enlarged sectional view. (A) is a partial enlarged cross-sectional view showing the mounting structure of the anti-falling device (functional expansion tool), and (B) is a partial enlarged sectional view showing the mounting structure of the article stand (functional expansion device). (A) is a partially enlarged cross-sectional view showing a modified example of the protrusion (positioning part), and (B) is a perspective view showing another modified example of the protruding part (positioning part).

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a desk top structure, a top cover, and a desk according to the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a state in which a top plate cover 10 according to a first embodiment is used, in which (A) is a perspective view and (B) is a partial sectional view. FIG. 2 is an exploded perspective view showing the configuration of the top cover 10 and desk 12B. The front and back, left and right, and up and down directions used in the following explanation are determined based on the direction seen from the user using the desk 12B, and the side farthest from the user is the front, and the side closest to the user is the rear. , the left hand side is the left side, and the right hand side is the right side. Each of these directions corresponds to each direction indicated by an arrow in the figure. Furthermore, in the following description, the center side of the cover portion 70 (base) that constitutes the top plate cover 10 is referred to as the inner side, and the opposite side thereof is referred to as the outer side.

The top cover 10 shown in FIG. 2 is used to protect the top 14 of an existing desk 12A used in school classrooms, libraries, study rooms, etc., or to cover dirt and scratches on the top 14. Therefore, it is attached to the top plate 14 and used as a substantial top plate. Therefore, in this embodiment, the top plate cover 10 includes a desk top surface structure 80 that constitutes a substantial top surface of the desk 12A. Furthermore, from the perspective of considering the existing desk 12A and the top cover 10 as one desk 12B, the desk 12B shown in FIG. We are prepared.

As shown in FIG. 2, the desk 12A includes a top plate 14 that is rectangular in plan view, a main body 16 that supports the top plate 14, and a main body 16 that extends downward from the main body 16. , and two hooks 20 protruding from each of the left side and right side of the main body 16. Note that the hook 20 on the left side is hidden behind the top plate 14 and the main body part 16 and cannot be seen.

As shown in FIG. 1B, the upper surface 14a and lower surface 14b of the top plate 14 are formed as flat surfaces, and the outer surface 14c of the top plate 14 has a central portion in the thickness direction that is convex toward the outside. It is formed into a curved surface. In this case, the upper surface 14a is composed of a smooth surface on which documents or designs can be further written. As shown in FIG. 2, the main body portion 16 is formed in a box shape so as to define a storage space S below the top plate 14. As shown in FIG. The storage space S is opened toward the rear (toward the user) through an opening 16a formed at the rear of the main body 16. The user of the desk 12A can put his hand into the storage space S through the opening 16a and take things in and out of the storage space S.

The desk 12A of this embodiment shown in FIG. 2 is designed based on JIS standards, and the length of the top plate 14 in the left-right direction is set to 650 mm, and the length of the top plate 14 in the front-back direction is set to 450 mm. It is stipulated in Note that the size of the top plate 14 is not limited to the above size, and may be changed as appropriate.

(Configuration of top plate cover according to first embodiment)
FIG. 3 is a diagram showing the configuration of the top plate cover 10 according to the first embodiment, in which FIG. 3(A) is a perspective view seen from the top side, and FIG. 3(B) is a perspective view seen from the bottom side. be. 4(A) is an enlarged view of the IVA portion in FIG. 3(A), and FIG. 4(B) is an enlarged view of the IVB portion in FIG. 3(B).

The top surface structure 80 of the desk shown in FIG. An annular protrusion 34 is provided as a "positioning section" for positioning the seat 82. In this embodiment, the desk top structure 80 is configured as a part of the top cover 10. Moreover, the mounting surface Q is composed of a flat and smooth plane. That is, the mounting surface Q is constituted by a smooth surface on which documents or designs can be written, like the upper surface 14a of the top plate 14 of the desk 12A.

As shown in FIGS. 3A and 3B, the top cover 10 includes a cover body 22 that covers the top plate 14 (FIG. 2) of the desk 12A from above, and a cover body 22 that hangs down from the peripheral edge of the cover body 22. The peripheral wall portion 24 is provided with a cylindrical shape. Further, as shown in FIG. 3(B), the top plate cover 10 includes four clamping means 26, 28, 30, which are provided on the cover body 22 and which sandwich the top plate 14 from a direction perpendicular to the vertical direction. It is equipped with 32. As shown in FIG. 2, the top plate cover 10 further includes a function expansion tool mounting portion 78 and a decorative sheet 82. The top cover 10 of this embodiment, except for the decorative sheet 82, is integrally formed of synthetic resin.

Each of the four clamping means 26, 28, 30, and 32 shown in FIG. 3(B) functions as an "attachment means" for attaching the cover body 22 to the top plate 14. The first clamping means 26 is composed of a first clamping piece 26a and a second clamping piece 26b. The second clamping means 28 is composed of a first clamping piece 28a and a second clamping piece 28b. The third clamping means 30 is composed of a first clamping piece 30a and a second clamping piece 30b, and the fourth clamping means 32 is composed of a first clamping piece 32a and a second clamping piece 32b. Therefore, the above-mentioned "four clamping means" can be rephrased as "four sets of first clamping pieces and second clamping pieces." That is, in this embodiment, the "attachment means" has four sets of first and second clipping pieces.

As shown in FIG. 3(A), the cover main body 22 has a plate-shaped cover portion 70 that covers the top plate 14 (FIG. 2) of the desk 12A from above. The cover part 70 is the "base" of the desk top structure 80, and is formed into a rectangular plate shape when viewed from above. The left side 70a and the right side 70b of the cover part 70 are formed to be parallel to each other in a plan view, and the front side 70c is formed to be perpendicular to the left side 70a and the right side 70b in a plan view. . The left side portion 72a and the right side portion 72b of the rear end portion 72 of the cover portion 70 are formed to protrude toward the rear side, so that the rear side 70d of the cover portion 70 is convex toward the front side in a plan view. It is formed in a curved manner.

A flat surface that can replace the top surface 14a of the top plate 14 (FIG. 2) is formed on the top surface 70e of the cover part 70, and this flat surface functions as the mounting surface Q. In other words, in this embodiment, the cover part 70 of the top cover 10 is configured by the plate-shaped "base" of the desk top structure 80, and the cover part (base) 70 supports the flat mounting surface Q as an upper surface. 70e.

As shown in FIG. 3A, an annular protrusion 34 is formed around the placement surface Q on the upper surface 70e of the cover portion (base) 70 in a plan view, rising from the placement surface Q. . The protrusion 34 is a "positioning part" of the desk top structure 80, and positions the decorative sheet 82 (FIG. 2) on the placement surface Q, and also restricts the movement of the decorative sheet 82 in the front, rear, left, and right directions. It has a function. That is, the decorative sheet 82 is positioned in the recess surrounded by the annular protrusion (positioning part) 34.

The protrusion (positioning part) 34 extends along the inner periphery of the decorative sheet 82 along the outer peripheral surface of the decorative sheet 82 so that it can face the decorative sheet 82 (FIG. 2) placed on the placement surface Q from the front, rear, left, and right directions. It is formed into an annular shape with a surface. In this embodiment, since the decorative sheet 82 is formed into a rectangular shape in plan view, the protrusions 34 are arranged along each side of the decorative sheet 82, such as a left piece 34a, a right piece 34b, and a front piece. It has a portion 34c and a rear piece portion 34d.

In this embodiment, the height of the protrusion (positioning part) 34 is set to be the same as the thickness of the decorative sheet 82 over the entire length in the circumferential direction. Therefore, as shown in FIG. 1(B), when one decorative sheet 82 is placed on the placement surface Q, the top surface 82a of the decorative sheet 82 and the top surface 34e of the protrusion 34 are flush with each other. In other words, no step is created between the decorative sheet 82 and the protrusion 34.

As shown in FIG. 3(A), the front part of the left piece 34a, the front part of the right piece 34b, and the entire front piece 34c, which constitute the protrusion (positioning part) 34, are provided with anti-fall, bookstand, etc. A function expansion device mounting portion 78 is provided to which “function expansion devices” such as a smartphone stand, a tablet stand, and an extended top plate member can be attached. As shown in FIG. 4(A), the function expansion device attachment part 78 has a groove 36 formed on the upper surface 70e of the cover part (base part) 70 outside the inner surface of the protrusion (positioning part) 34. . The inner wall 36a and outer wall 36b of the groove 36 are connected by a plurality of reinforcing walls 38.

As shown in FIG. 3(B), a left wall 24a, a right wall 24b, a front wall 24c, and a rear wall 24d hang down from the outer periphery of the cover 70. These are connected to form an annular peripheral wall portion 24. Concave portions 42a and 42b are formed in the center portions of the left wall portion 24a and the right wall portion 24b in the front-rear direction, and are recessed upward from their lower ends. A plurality of linear reinforcing ribs 40 are formed on the lower surface 70f of the cover portion 70. As shown in FIG. 4(B), the inner wall 36a and bottom portion 36c of the groove 36 (FIG. 4(A)) are exposed at the front of the lower surface 70f of the cover portion 70.

As shown in FIG. 3(B), the vertical lengths of the left wall portion 24a and the right wall portion 24b are determined to such an extent that their lower ends do not hit the hook 20 (FIG. 2), and the rear wall portion The length of 24d in the vertical direction is determined to be sufficient to secure the opening 16a (FIG. 2) of the main body portion 16. In this embodiment, the vertical lengths of the left wall portion 24a, right wall portion 24b, front wall portion 24c, and rear wall portion 24d are uniform, except for the recessed portions 42a and 42b. Note that these lengths in the vertical direction do not necessarily have to be uniform and may be changed as appropriate.

As shown in FIG. 3(B), the first clamping means 26 includes a first clamping piece 26a provided on the left side of the central part of the cover body 22 in the front-rear direction via a left wall part 24a, and The top plate 14 is configured to be able to be held between the left and right sides by a second holding piece 26b provided on the right side of the center in the front-rear direction via the right wall part 24b. The first clipping piece 26a is connected to the lower end edge of the left wall portion 24a in the recessed portion 42a, and the second clipping piece 26b is connected to the lower end edge of the right wall portion 24b in the recessed portion 42b.

5(A) is a bottom view showing the structure of the top plate cover 10, and FIG. 5(B) is an enlarged sectional view taken along the line VB-VB in FIG. 5(A). 6(A) is an enlarged sectional view taken along the VIA-VIA line in FIG. 5(A), FIG. 6(B) is an enlarged sectional view taken along the VIB-VIB line in FIG. ) is an enlarged cross section along the VIC-VIC line.

The first clipping piece 26a shown in FIGS. 5(A) and 5(B) is formed into a plate shape of synthetic resin so that it can be elastically deformed in a direction away from the second clipping piece 26b. As shown in FIG. 5(B), the outer surface 44 of the first clipping piece 26a is formed to be inclined so as to be positioned outward as it goes upward, and the inner surface 46 of the first clipping piece 26a is It is bent and formed along the outer surface 14c and lower surface 14b of the top plate 14 shown in FIG. 1(B). Note that the inner surface 46 of the first clipping piece 26a may be formed to be curved along the outer surface 14c and the lower surface 14b of the top plate 14.

To explain in more detail, the first clipping piece 26a includes a plate-shaped first portion 48 formed in an inclined manner so as to extend from the lower end edge of the left wall portion 24a to the lower right in the recessed portion 42a; It has a plate-shaped second portion 50 that is formed to extend horizontally from the lower end to the right. The outer surface 44 of the first clip 26a is formed by the outer surface 48a of the first portion 48. The inner surface 46 of the first clipping piece 26a is connected to the inner surface 48b of the first portion 48 formed along the outer surface 14c of the top plate 14 (FIG. 1(B)) and the lower surface 14b of the top plate 14 (FIG. 1(B)). 1(B)).

As shown in FIG. 5(A), the second clipping piece 26b is configured symmetrically with the first clipping piece 26a, so a description of the second clipping piece 26b will be omitted.

The interval between the first clipping piece 26a and the second clipping piece 26b in the natural state is determined to be narrower than the width of the corresponding portion of the top plate 14 (FIG. 2) sandwiched therebetween. Here, the distance between the first clipping piece 26a and the second clipping piece 26b means the distance between the portions that sandwich the top plate 14. In this embodiment, the lower end portions of the first portions 48 (FIG. 1(B)) of each of the first clipping piece 26a and the second clipping piece 26b serve as the portions that sandwich the top plate 14, and the lower ends thereof are The interval is narrower than the width of the corresponding portion of the top plate 14.

As shown in FIG. 3(B), the second clamping means 28 includes a first clamping piece 28a provided at the left front part of the cover body 22, and a first clamping piece 28a provided at the left rear part of the cover body 22. The two sandwiching pieces 28b are configured to sandwich the top plate 14 from the front and rear directions. The first clipping piece 28a is formed rearwardly away from the front wall 24c, and the second clipping piece 28b is formed forwardly away from the rear wall 24d.

As shown in FIG. 6(B), the first clipping piece 28a is a plate-shaped portion that can be elastically deformed in the direction away from the second clipping piece 28b, and the groove 3 It is formed to be inclined so as to extend rearward and downward from the bottom portion 36c. A through hole 52 into which a wood screw (not shown) is inserted is formed in the first clipping piece 28a, and the inner surface (rear surface) of the tip of the first clipping piece 28a is smoothly curved. has been done.

As shown in FIG. 6(A), the second clipping piece 28b is a plate-shaped portion that can be elastically deformed in a direction away from the first clipping piece 28a, and extends forward and downward from the lower surface 70f of the cover part 70. It is formed at an angle. A through hole 52 into which a wood screw (not shown) is inserted is formed in the second clipping piece 28b, and the tip of the second clipping piece 28b is bent forward. The inner surface (front surface) of this bent portion is smoothly curved.

The distance between the first clipping piece 28a and the second clipping piece 28b in the natural state is determined to be narrower than the width of the corresponding portion of the top plate 14 (FIG. 2) sandwiched therebetween. Here, the distance between the first clipping piece 28a and the second clipping piece 28b means the distance between the portions that sandwich the top plate 14. In this embodiment, the tips of each of the first pinching piece 28a and the second pinching piece 28b are the parts that sandwich the top plate 14, and the distance between the tips is wider than the width of the corresponding part of the top plate 14. is also narrowly defined.

As shown in FIG. 6(B), in the present embodiment, a front wall portion 24c is formed on the outside (front side) of the first clipping piece 28a in the cover body 22 and hangs down from the cover portion 70. The front wall portion 24c serves as a "hanging wall" for hiding the first clipping piece 28a. Further, as shown in FIG. 6(A), a rear wall portion 24d is formed on the outside (rear side) of the second clipping piece 28b in the cover body 22 and hangs down from the cover portion 70. The portion 24d serves as a "hanging wall" for hiding the second clipping piece 28b.

As shown in FIG. 5(A), the third clamping means 30 is configured symmetrically with the second clamping means 28 across the center portion of the cover body 22 in the left-right direction. Explanation will be omitted.

As shown in FIG. 3(B), the fourth clamping means 32 includes a first clamping piece 32a provided at the front of the center portion of the cover body 22 in the left-right direction and a rear portion of the center portion of the cover body 22 in the left-right direction. The provided second sandwiching pieces 32b are configured to sandwich the top plate 14 from the front and rear directions. The first clipping piece 32a is formed rearwardly away from the front wall portion 24c, and the second clipping piece 32b is formed at the lower end of the rear wall portion 24d.

The first clamping piece 32a is formed similarly to the first clamping piece 28a of the second clamping means 28 shown in FIG. 6(B), so a description of the first clamping piece 32a will be omitted. As shown in FIG. 6(C), the second clipping piece 32b is formed to protrude inward (front side) from the lower end of the rear wall 24d. ) are smoothly curved. Therefore, the second clipping piece 32b can be elastically deformed in a direction moving away from the first clipping piece 32a, although slightly, and the rear wall portion 24d serves as a "hanging wall" for hiding the second clipping piece 32b. It becomes.

The decorative sheet 82 shown in FIG. 2 is a rectangular sheet in a plan view that is placed on the placement surface Q in order to cover up scratches caused on the placement surface Q or to decorate the desk surface of the desk 12B. It is. The decorative sheet 82 has a first decorative surface provided on one side and a second decorative surface provided on the other side. It is fixed to the mounting surface Q using adhesive tape (not shown). The double-sided adhesive tape of this embodiment is a "fixing means" configured to detachably fix the decorative sheet 82 to the placement surface Q.

The material of the decorative sheet 82 is not particularly limited, and for example, a high pressure melamine sheet, a low pressure melamine sheet, an olefin sheet, etc. can be used. The thickness of the decorative sheet is not particularly limited, and is set to 1 mm in this embodiment.

The type of "fixing means" is not particularly limited, and instead of double-sided adhesive tape, an adhesive, a pressure-sensitive adhesive, a hook-and-loop fastener, etc. may be used. Furthermore, the "fixing means" may be omitted. Even if the "fixing means" is omitted, the movement of the decorative sheet 82 placed on the placement surface Q can be regulated by the protrusion (positioning part) 34, so the decorative sheet 82 can be positioned.

(How to use the top cover according to the first embodiment)
FIG. 7(A) is a partially enlarged cross-sectional view showing the attached state of the anti-falling device (function expanding device) 54, and FIG. 7(B) is a partially enlarged sectional view showing the attached condition of the book stand (function expanding device) 56.

When the worker attaches the top plate cover 10 to the top plate 14 (FIG. 2) of the desk 12A, the worker first attaches the first clips 28a, 30a, 32a (FIG. 2) provided on the front part of the top plate cover 10. 3(B)) on the front of the top plate 14. Next, the operator moves the rear part of the top cover 10 closer to the top 14 while maintaining the hooked state, and then moves the first clip 26a provided on the left side of the top cover 10 and the right side of the top cover 10. The second clipping pieces 26b provided at the top plate 14 are hooked onto the left and right sides of the top plate 14.

Thereafter, the operator hooks the second clipping pieces 28b, 30b, 32b (FIG. 3(B)) provided at the rear of the top plate cover 10 to the rear of the top plate 14. When it is desired to reliably prevent the top plate cover 10 from separating from the top plate 14, the operator uses wood screws (not shown) to secure the first clamp pieces 28a, 30a, 32a and the second clamp pieces 28b, 30b. and fix it to the top plate 14.

When the top plate cover 10 is attached to the top plate 14 (FIG. 2) of the desk 12A, the first clipping pieces 28a, 30a, and 32a are hidden by the front wall portion 24c as a "hanging wall", so that they cannot be seen from the outside. can not see. Further, the second clipping pieces 28b, 30b, and 32b are hidden by the rear wall portion 24d as a "hanging wall", so that they cannot be seen from the outside.

As shown in FIG. 7A, when preventing a writing instrument, eraser, etc. (not shown) placed on the top surface 22a of the cover main body 22 from falling from the top surface 22a, the user must ” is prepared, and the insertion portion 54a provided on the anti-fall 54 is inserted into the groove 36 of the cover body 22. Further, as shown in FIG. 7(B), when using the book stand 56 as a "functional expansion device" on the top surface 22a of the cover main body 22, the user inserts the insertion part 56a provided on the book stand 56. Insert into groove 36.

(Effects of the top plate cover according to the first embodiment)
According to this embodiment, the following effects can be achieved by the above configuration. That is, when placing the decorative sheet 82 on the placing surface Q shown in FIG. And positioning can be done reliably. Further, the movement of the decorative sheet 82 placed on the placement surface Q in each of the front, rear, left and right directions can be regulated by the protrusion (positioning part) 34.

When the decorative sheet 82 is not placed on the placement surface Q, the placement surface Q can be used as it is as the desk surface of the desk 12B, and the protrusion (positioning portion) 34 prevents the article from falling from the placement surface Q. It can be prevented. Therefore, the user can freely select whether or not to use the decorative sheet 82 according to his or her preference.

As shown in FIG. 1B, since the height of the protrusion (positioning part) 34 is set to be the same as the thickness of the decorative sheet 82, the height difference between the decorative sheet 82 and the protrusion 34 can be eliminated. , the user's work efficiency can be improved.

As shown in FIGS. 7(A) and 7(B), when using the anti-fall device (functional extension tool) 54 and the book stand (functional extension tool) 56, the user inserts a part of these into the groove 36. These can be easily attached to the function expansion device attachment portion 78 by simply inserting the function expansion device attachment portion 78. Since the groove 36 is formed outside the inner surface of the protrusion (positioning part) 34, the decorative sheet 82 does not get in the way when attaching the anti-fall (function extension tool) 54 and the book stand (function extension tool) 56. Furthermore, even when the anti-falling device (function extension device) 54 and the book stand (function expansion device) 56 are attached, the decorative sheet 82 can be positioned by the protrusion (positioning portion) 34.

Since the decorative sheet 82 is fixed to the mounting surface Q using double-sided adhesive tape (not shown) as a "fixing means", it can be easily removed from the mounting surface Q, and the decorative sheet 82 can be easily removed from the mounting surface Q. By reversing the front and back sides, the first decorative surface and the second decorative surface can be appropriately selected and used.

(Modified example)
Note that the implementation of the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the purpose of the present invention. That is, as shown in FIG. 2, in the above embodiment, the cover part 70 is formed in a rectangular shape in plan view, but the shape of the cover part 70 may be changed as appropriate, and may be formed in an elliptical or circular shape. It's okay. Further, the shapes of the decorative sheet 82 and the protrusion (positioning portion) 34 may be changed as appropriate depending on the shape of the cover portion 70 and the like.

As shown in FIG. 3(B), in the above embodiment, the cover main body 22 is provided with four clamping means 26, 28, 30, 32, but the number of clamping means can be changed as appropriate. It may be 1 to 3 pieces, or it may be 5 or more pieces. In other words, the top cover 10 only needs to include at least one clamping means. In other words, the top cover 10 only needs to have at least one set of the first clipping piece and the second clipping piece as "attachment means". Further, other "attachment means" such as bolts/nuts, wood screws, adhesives, double-sided tape, etc. may be used instead of the first and second clip pieces.

As shown in FIG. 2, in the above embodiment, the "positioning section" is composed of the annular protrusion 34, but the "positioning section" includes a plurality of sections facing the decorative sheet 82 from the front, rear, left, and right directions. It may be configured with a protrusion (not shown). In this case, each of the plurality of protrusions may be formed in an L-shape in plan view and arranged along each corner (projected corner) of the decorative sheet 82, or may be arranged in a linear or dotted manner. They may be formed and arranged along each side of the decorative sheet 82.

FIG. 8(A) is a partially enlarged sectional view showing a modification of the protrusion (positioning portion) 34, and FIG. 8(B) is a perspective view showing another modification of the projection (positioning portion) 34.

As shown in FIG. 1B, in the above embodiment, the height of the protrusion (positioning part) 34 is set to be one time the thickness of the decorative sheet 82, but at least the cover part (base) 70 The height of the protrusion (positioning portion) 34 formed on the rear end portion 72 may be set to an integral multiple of the thickness of the decorative sheet 82. For example, as shown in FIG. 8(A), the height of the protrusion (positioning portion) 34 may be set to twice the thickness of the decorative sheet 82.

In this configuration, a plurality of decorative sheets 82 (two sheets in FIG. 8A) are stacked on the placement surface Q, so that the upper surface 82a of the uppermost decorative sheet 82 and at least the cover portion (base portion) ) 70 is flush with the upper surface 34e of the protrusion (positioning portion) 34 formed on the rear end 72. Therefore, the level difference between the decorative sheet 82 and the protrusion (positioning part) 34 formed on the rear end part 72 of the cover part (base part) 70 can be eliminated, and the user's work efficiency can be improved.

As shown in FIG. 1B, in the above embodiment, the height of the top surface 34e of the protrusion (positioning portion) 34 is the same as the height of the top surface 82a of the decorative sheet 82 placed on the placement surface Q. Although defined, these heights may be defined differently. For example, as shown in FIG. 8(B), the overall height of the front part of the left piece 34a, the front part of the right piece 34b, and the front piece 34c may be set higher than the height of other parts. good. Further, as shown in FIG. 8(B), the function expansion device attachment portion 78 may be omitted.

As shown in FIG. 2, in the above embodiment, the desk top structure 80 is provided on the top plate 14 of the desk 12A via the top plate cover 10; It may also be provided directly on the plate 14. That is, the protrusion 34 may be formed around the placement surface Q provided on the upper surface 14a of the top plate 14, rising from the placement surface Q. In this case, the top plate 14 becomes the base of the desk top structure 80. In other words, the top plate 14 is constituted by the base of the desk top structure 80.

Q... Placement surface, S... Storage space, 10... Top plate cover, 12A, 12B... Desk, 14... Top plate, 14a... Upper surface, 14b... Lower surface, 14c... Outer surface, 16... Main body, 16a... Opening, 18...Legs, 20...Hooks, 22...Cover body, 22a...Top surface, 24...Peripheral wall part, 24a...Left wall part, 24b...Right wall part, 24c...Front wall part, 24d...Rear wall part, 26...th 1 clamping means, 28...second clamping means, 30...third clamping means, 32...fourth clamping means, 26a, 28a, 30a, 32a...first clamping piece, 26b, 28b, 30b, 32b...second clamping piece , 34...Protrusion (positioning part), 34a...Left piece part, 34b...Right piece part, 34c...Front piece part, 34d...Rear piece part, 34e...Top surface, 36...Groove, 36a...Inner wall, 36b...Outer wall, 36c...bottom, 38...reinforcement wall, 40...reinforcement rib, 42a, 42b...recess, 44...outer surface, 46...inner surface, 48...first part, 50...second part, 52...through hole, 70... Cover part (base), 70a...left side, 70b...right side, 70c...front side, 70d...rear side, 70e...top surface, 70f...bottom surface, 72...rear end part, 72a...left side part, 72b...right side part, 78... Function expansion device mounting portion, 80...Desk top structure, 82...Decorative sheet, 82a...Top surface.

Claims (9)

a cover body having a plate-like cover portion that covers the top of the desk from above;
attachment means for attaching the cover body to the top plate;
and a desk top structure constituting the top surface of the desk,
The top structure is
a plate-shaped base having a placement surface on the top surface on which an article is placed;
a positioning portion formed around the placement surface on the upper surface of the base and rising from the placement surface, and for positioning the decorative sheet on the placement surface;
The placement surface is formed as a flat and smooth surface,
When looking at the user of the desk, the far side is the front side, the near side is the rear side, the left hand side is the left side, and the right hand side is the right side, and the positioning part It is formed so that it can face the decorative sheet from all directions, front, back, left, and right.
A top plate cover, wherein the cover portion is constituted by the base portion of the desk top structure. The top plate cover according to claim 1 , wherein the positioning portion is formed in an annular shape having an inner circumferential surface along an outer circumferential surface of the decorative sheet. The top cover according to claim 2 , wherein the height of the positioning portion formed at least at the rear end of the base is determined to be an integral multiple of the thickness of the decorative sheet. The top cover according to claim 3 , wherein the height of the positioning portion formed at least at the rear end of the base is determined to be the same as the thickness of the decorative sheet. Equipped with a function expansion device attachment part where function expansion devices can be attached,
When the center side of the base is the inside and the opposite side is the outside,
4. The top plate cover according to claim 3 , wherein the function expansion tool attachment part has a groove formed on the upper surface of the base on the outside of the inner surface of the positioning part. The top cover according to claim 5 , comprising the decorative sheet placed on the placement surface. The top cover according to claim 6 , further comprising a fixing means for fixing the decorative sheet to the placement surface. The top cover according to claim 7 , wherein the fixing means is configured to detachably fix the decorative sheet to the placement surface. The top plate cover according to any one of claims 1 to 8 , wherein the decorative sheet has a first decorative surface provided on one surface and a second decorative surface provided on the other surface.

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