Wooden laminated top

Abstract

To provide a finished product body and components in a packaged state with required strength at a low cost in a minimum reinforcing structure in desks / tables using a wooden laminated top board.SOLUTION: A wooden laminated top board 1 includes, on a back side thereof, a front reinforcement 2 provided along a width direction on a front side, a plurality of lateral reinforcements 3 and 3 provided along a depth direction near respective ends of the left / right, and a plurality of rear reinforcements 4 smaller than any of the front reinforcement 2 and the lateral reinforcements 3, provided on the rear side. Since minimum reinforcing materials are embedded in the respective directions, the wooden laminated top board can maintain required strength at a low cost. The reinforcing materials are provided in both of the width direction and the depth direction, so that a secular change such as warpage or shrinkage peculiar to the wooden top board can be prevented.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a wooden composite top board, which is a top board placed on the legs or sleeves (side desks) of office equipment including tables and desks, and is made by joining together multiple rod-shaped wooden composite pieces. [Background technology]

[0002] In recent years, the use of forest resources has been attracting attention as part of the SDGs, which have become a global initiative. The sustainable management of Japan's forests requires the use of domestically produced timber, and in particular, laminated timber, which is made by gluing together wood offcuts with adhesives, is attracting attention because it reduces the loss of raw timber and makes efficient use of forest resources.

[0003] Wood is primarily used for building pillars and fixtures, but scraps can also be generated after product processing, and laminated lumber is an effective way to utilize them. Laminated lumber has the advantage of being relatively dimensionally stable because different parts are assembled together, and by randomly assembling them together, the surface develops a unique mosaic pattern reminiscent of a natural red and white mosaic, improving its aesthetic appearance. Laminated lumber, which has these characteristics, is increasingly being used for the tops of office equipment such as tables and desks. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2001-95627 A Summary of the Invention [Problem to be solved by the invention]

[0005] On the other hand, laminated timber is relatively resistant to cracking in the width direction because it is joined using finger joints made by combining pieces of wood processed into deep corrugations, but the problem is that it is prone to cracking in the depth direction because the rod-shaped wooden laminated pieces are joined by gluing their sides together.If a reinforcing material is provided on the underside of the tabletop to solve this problem, the placement of the reinforcing material will differ depending on the type of desk or other office equipment, which means that the tabletop will have to be specialized, and the reinforcing material will interfere and make it impossible to attach drawers or other items to the underside of the tabletop.

[0006] As a means of solving the above problems, a reinforcement structure such as that disclosed in Patent Document 1 has been proposed, but in tabletops made of laminated wood, the strength is reduced due to the grooves that are made to accommodate the reinforcement material, and there is a risk of damage in the depth direction due to adhesive peeling, etc.

[0007] To provide a wooden laminated top board which has been made to solve the above-mentioned problems and which solves the problem inherent to laminated wood that it is prone to cracking in the depth direction, and is highly versatile and can be fitted with options such as drawers. [Means for solving the problem]

[0008] This invention relates to a tabletop to be placed on the legs and / or sleeves of office equipment such as a table or desk, and the tabletop is a wooden laminated tabletop made by joining together a plurality of wooden rod-shaped laminated pieces, The surface to which the legs and / or sleeves of the wooden laminated top board are attached, a front reinforcement provided along the width direction near the front end of the wooden laminated top; a plurality of horizontal reinforcements provided along the depth direction near the left and right ends of the wooden laminated top board; Each of the plurality of transverse reinforcements is long enough to cover the plurality of assembly pieces, The front reinforcement is disposed between the plurality of transverse reinforcements and is long enough not to interfere with any of the plurality of transverse reinforcements.

[0009] A plurality of the cross braces are provided at positions where the legs of the office equipment are attached, and the legs are attached to the cross braces.

[0010] Furthermore, the wooden laminated top board is provided with a plurality of rear reinforcements that are arranged between the plurality of lateral reinforcements and are smaller than both the front reinforcements and the lateral reinforcements.

[0011] The front reinforcement, the plurality of side reinforcements, and the plurality of rear reinforcements are provided at positions where sleeves of the business equipment are attached, and the sleeves are attached to the front reinforcement, the plurality of side reinforcements, and the plurality of rear reinforcements.

[0012] Furthermore, the office equipment often has drawers, in which case the front reinforcement, the multiple side reinforcements, and the multiple rear reinforcements are provided at the positions where the drawer rails are attached, and the drawer rails are attached to the front reinforcement, the multiple side reinforcements, and the multiple rear reinforcements. [Effects of the Invention]

[0013] According to this invention, by providing the front reinforcement and the lateral reinforcement, the required strength can be maintained at low cost for the completed office equipment or for the tabletop alone. By providing reinforcement in both the width and depth directions, deterioration over time, such as warping and shrinkage, which is characteristic of wooden tabletops, can be prevented. Because the required strength is maintained for the tabletop alone through reinforcement, each component of the product can be separated and returned to its pre-assembly state, reducing the packaging volume of the entire product and leading to reduced inventory and transportation costs.

[0014] According to this invention, by positioning each reinforcement as described above and attaching options and the like to each reinforcement, not only can misalignment of the mounting holes during assembly be prevented, but also it is possible to firmly secure the reinforcement via the reinforcement material.

[0015] Furthermore, by minimizing the size of the rear reinforcement depending on the combination of sleeves, drawers, etc., it is possible to suppress an increase in product costs. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. 3(a) is an explanatory diagram of the assembly of the top plate according to the embodiment of the invention, and FIG. 3(b) is a perspective view of the same top plate. [Figure 4] 1A and 1B are a plan view and a side view of a top plate according to an embodiment of the present invention. [Figure 5] 2A to 2C are a bottom view, a side view, and a cross-sectional view of a top plate according to an embodiment of the present invention. [Figure 6] 1 is an explanatory view showing the attachment of reinforcements 2, 3, and 4 to a top plate according to an embodiment of the invention. [Figure 7] FIG. 10 is an explanatory diagram (bottom view) showing the relationship between the reinforcement of the top plate and the attachment positions of the legs, sleeves, and drawer rails according to the embodiment of the invention. [Figure 8] 1A and 1B are a front view and left and right side views of an office machine (single-arm desk) using a top plate according to an embodiment of the invention (showing the attachment of legs, arms, and drawer rails to the top plate). [Figure 9] FIG. 9(a) is a perspective view of the same office equipment (flat desk), and FIG. 9(b) is an explanatory diagram of the assembly of the same office equipment. [Figure 10] 1 is an explanatory diagram of the assembly of the same office equipment (continued). [Figure 11] FIG. 10(a) is a perspective view of the same office equipment (sleeveless desk), and FIG. 10(b) is an explanatory diagram of the assembly of the same office equipment. [Figure 12] 1 is an explanatory diagram of the assembly of the same office equipment (continued). [Figure 13] FIG. 13(a) is a perspective view of the same office equipment (double-sided desk), and FIG. 13(b) is an explanatory diagram of the assembly of the same office equipment. [Figure 14] 1 is an explanatory diagram of the assembly of the same office equipment (continued). DETAILED DESCRIPTION OF THE INVENTION

[0017] Before describing the embodiments of the present invention, the directions used in this specification will be defined. In the following description, the assembled top plate may be simply referred to as the top plate.

[0018] "Front" refers to the user's side of office equipment such as a desk or table when in use. "Rear" refers to the side opposite the user. "Side" refers to the left or right side of the tabletop as seen by the user. "Width" refers to the left-right direction as seen by the user (symbol D1 in Figure 5). The distance between the left and right edges of the tabletop is the width of the tabletop. "Depth" refers to the front-to-back direction as seen by the user (symbol D2 in Figure 5). The distance between the front and rear edges of the tabletop is the depth of the tabletop. The depth and width directions intersect (are perpendicular to) each other. "Front" refers to the upper surface on which the user works. "Back" refers to the opposite side of the front, the surface on which legs, sleeves, drawers, etc. are attached. Note that Figures 3, 5 to 7 and their descriptions refer to the left and right sides when the tabletop is turned upside down.

[0019] The tabletop according to the embodiment of the present invention is an assembled tabletop made up of a number of assembled pieces. As shown in Figure 4, this assembled tabletop is a rectangular plate.

[0020] The assembly pieces according to the embodiments of the invention will be explained with reference to Figs. 1 and 2. There are two types of assembly pieces: assembly piece A and assembly piece B. Figs. 1(a)-(c) are a plan view, a side view, and an explanatory diagram of assembly of assembly piece A, and Figs. 1(d)-(f) are a plan view, a side view, and an explanatory diagram of assembly of assembly piece B. Right side views are shown on the right side of (a), (b), (d), and (e), respectively. The internal lines in the figures indicate the wood grain.

[0021] Assembly pieces A and B have the same shape and are rod-shaped pieces of wood. Assembly pieces A and B are both made by joining multiple rod-shaped pieces of wood 11, 12 with a finger joint J. A finger joint J is made by zigzagging both ends (joints) 11a, 12a of the pieces of wood 11, 12 and then joining them. By combining and adhesively joining both wooden sides together, a stable strength can be maintained. The name "finger joint" comes from the fact that the joint resembles the shape of two hands clasped together with their fingers interlocked.

[0022] Assembly piece B is made by joining multiple pieces of wood 11 of the same length (four in the example shown). Assembly piece A is made by joining multiple pieces of wood 11 (three in the example shown) with pieces of wood 12 shorter than the pieces 11 joined to both ends. Although the numbers of pieces 11 and 12 used are different, the lengths of assembly pieces A and B after joining the pieces 11 and 12 are the same. As can be seen from the figure, the position of the finger joint J is different between assembly pieces A and B.

[0023] As shown in Figure 2, the tabletop according to the embodiment of the invention is made by arranging pieces A and B alternately and bonding their sides together to form a rectangular board. Alternating finger joints J between adjacent pieces improves strength in the width direction. In addition, by using a narrow pitch and randomly assembling pieces of wood from various parts, it appears to have a natural mosaic pattern.

[0024] The composite tabletop has the following features: It is possible to effectively utilize scraps left over after manufacturing wooden products. By assembling pieces of wood or composite pieces from different parts, the dimensions remain relatively stable even with changes in temperature and humidity, and warping is less likely to occur. It also has design features such as unique mosaic patterns. Since it is joined with finger joint J, it is relatively resistant to cracking in the width direction, but since it is joined only with adhesive in the depth direction, it is relatively prone to cracking.

[0025] As shown in Figures 3, 5 to 7, the top plate in accordance with the embodiment of the invention has reinforcing parts (front reinforcement 2, side reinforcement 3, rear reinforcement 4) made of metal plate-shaped members (such as channel material or angle material) on its back surface.

[0026] The front reinforcement 2 is provided on the front side of the tabletop 1 and is a member that reinforces the tabletop 1 in the width direction (D1) centered on its front portion. Because the front edge faces the user and is expected to be subjected to various loads, the front reinforcement 2 is a member that maintains the strength of the front edge of the tabletop 1. The front reinforcement 2 further stabilizes the dimensions of the tabletop 1 and prevents warping and cracking. The front reinforcement 2 has multiple mounting holes 22 (in the illustrated example, there are two sets of three mounting holes 22 adjacent to each other, for a total of six mounting holes 22). These mounting holes 22 are used to attach the drawer 51a, center drawer 51b, and sleeve 53, as described below. A sleeve desk 53 is a type of office desk with storage space with doors on both ends (both sleeves) or one end (single sleeve).

[0027] The horizontal reinforcements 3 are provided on the left and right sides of the tabletop 1 and are members that reinforce the sides. The horizontal reinforcements 3 are members that maintain the strength of the tabletop 1 in the depth direction. The horizontal reinforcements 3 stabilize the dimensions of the tabletop 1 and prevent it from warping or cracking. As mentioned above, composite tabletops are relatively prone to cracking in the depth direction, but the horizontal reinforcements 3 can prevent this. The horizontal reinforcements 3 are provided with multiple mounting holes 32 (four mounting holes 32 are provided in the example shown). These mounting holes 32 are used when attaching the drawer 51a, legs 52, and sleeves 53, as will be described later.

[0028] The rear reinforcement 4 is a member provided in two locations on the rear of the tabletop 1. Because it is located on the rear of the tabletop and its main purpose is to attach options, it does not require as much strength as the other reinforcements, and is therefore a smaller member than the front reinforcement 2 and the side reinforcement 3. The rear reinforcement 4 has multiple mounting holes 42 (three mounting holes 42 are provided in the example shown). These mounting holes 42 are used when attaching the drawer 51a, center drawer 51b, and sleeve 53, as will be described later.

[0029] The front reinforcement 2, side reinforcement 3, and rear reinforcement 4 are reinforcing members for the tabletop 1, but also serve as bases for attaching the drawer 51a, center drawer 51b, legs 52, and sleeves 53 (mounting parts for desk options).

[0030] The top plate 1 is provided with recesses for receiving the front reinforcement 2, the lateral reinforcement 3, and the rear reinforcement 4, namely, recesses 21 for front reinforcement, recess 31 for lateral reinforcement, and recess 41 for rear reinforcement. These recesses are carved to match the shape, size, and thickness of the front reinforcement 2, the lateral reinforcement 3, and the rear reinforcement 4, and store them so that they do not protrude from the surface. Therefore, the back surface of the top plate 1 is flat. The front reinforcement 2, the lateral reinforcement 3, and the rear reinforcement 4 are attached to the recesses for front reinforcement 21, the recess for lateral reinforcement 31, and the recess for rear reinforcement 41, respectively, with screws S.

[0031] Although the tabletop 1 according to the embodiment of the invention is a composite tabletop, it has the same strength as a standard steel tabletop, and is resistant to warping and cracking, thanks to the provision of front reinforcement 2 and side reinforcement 3. In other words, the front reinforcement 2 ensures the strength of the front side of the desk, which is subjected to the most force during use (requiring strength). The side reinforcement 3 ensures the strength in the depth direction, where strength is structurally weaker because the sides are merely joined together with adhesive.

[0032] From a strength perspective, it is preferable to provide the front reinforcement 2 across the entire width of the front edge and the transverse reinforcements 3 across the entire depth of the left and right edges, but this can lead to interference between the two. Specifically, the front reinforcement 2 and the transverse reinforcement 3 come into contact and overlap. In this embodiment of the invention, transverse reinforcement 3 is prioritized in consideration of the strength characteristics resulting from the manufacturing process of the assembled tabletop described above. That is, in the tabletop 1, which is composed of multiple assembled pieces A and B arranged and joined together, transverse reinforcement 3 is provided to cover most, preferably all, of the assembled pieces A and B. In this case, the transverse reinforcement recesses 31 are carved into most or all of the assembled pieces A and B. The transverse reinforcement 3 can extend up to the entire depth of the tabletop 1. In contrast, the length of the front reinforcement 2 is shorter than the total length of the assembled pieces A and B (the width of the tabletop 1) to avoid interference (contact) with the transverse reinforcement 3. In other words, the front reinforcement 2 is positioned between the transverse reinforcements 3 and is long enough not to interfere with either of the transverse reinforcements 3.

[0033] Next, the attachment positions of the front reinforcement 2, the lateral reinforcement 3 and the rear reinforcement 4 will be explained with reference to Figs.

[0034] The attachment positions of the front reinforcement 2, the lateral reinforcement 3, and the rear reinforcement 4 have the following relationship. In Figure 7, the dashed dotted lines indicate the corresponding relationship. (1) The horizontal reinforcement 3 corresponds to the position of the legs 52 of the office equipment (the horizontal reinforcement 3 has mounting holes 32 corresponding to the mounting holes 522 of the legs 52). (2) The front reinforcement 2, the side reinforcement 3 and the rear reinforcement 4 correspond to the positions of the drawer rails 51 for the drawer 51a and the center drawer 51b provided on the underside of the top plate 1 (each has mounting holes 22, 32 and 42 corresponding to the mounting hole 512 of the drawer rail 51). (3) The front reinforcement 2, side reinforcement 3 and rear reinforcement 4 correspond to the position of the sleeve 53 (each has mounting holes 22, 32, 42 corresponding to the mounting hole 532 of the sleeve 53, and mounting hole 32 is also used for the leg 52).

[0035] By arranging the front reinforcement 2, side reinforcement 3, and rear reinforcement 4 as described above, the tabletop 1 according to the embodiment of the invention can be made compatible with standard tabletops in terms of attaching options such as legs 52, sleeves 53, and drawers 51a and 51b.

[0036] The front reinforcement 2, the side reinforcement 3, and the rear reinforcement 4 are respectively embedded and attached in the recesses 21, 31, and 41, so that the back surface of the table top 1 according to the embodiment of the invention can be made flat in the same way as the table top of a normal desk.

[0037] This allows options such as drawers that are normally installed on the underside of a desk to be installed as is. As with regular desks, the same tabletop can be used for all types of desks (flat desk with no sleeves, single-sided desk, and double-sided desk).

[0038] 7, the length of front reinforcement 2 is longer than the spacing T1 between drawer rails 51 of center drawer 51b and shorter than the spacing between horizontal reinforcements 3 and 3. The spacing between horizontal reinforcement 3 and rear reinforcement 4 corresponds to the widthwise spacing P of mounting holes 532 in sleeve 53 and also corresponds to the spacing T2 between drawer rails 51. The spacing between front reinforcement 2 and rear reinforcement 4 corresponds to the depthwise spacing Q of mounting holes 532 in sleeve 53 and also corresponds to the spacing between mounting holes 512, 512 in drawer rail 51. The length of horizontal reinforcement 3 is the same as or slightly longer than the depthwise spacing Q of mounting holes 532 in sleeve 53, and the same as or slightly longer than the spacing R of mounting holes 522 in legs 52.

[0039] There are several variations in office equipment. These will be explained with reference to the drawings. The top panel 1 according to the embodiment of the invention can be applied to any of them. Note that the symbols for the mounting holes are omitted in Figures 9 to 14.

[0040] Figures 8 to 10 show a type with a sleeve 53 on the right side and drawers 51a and 51b under the top panel. In this explanation, left and right are indicated based on the top panel viewed from the front (normal use state) (same below). Figure 9(a) shows the completed state. Figure 9(b) and Figures 10(a) and (b) show the assembly procedure. The mounting holes 522 of the legs 52 are attached to the mounting holes 32 of the horizontal reinforcement 3 with matching screws S, and the mounting holes 532 of the sleeve 53 are attached to the mounting holes 22 of the front reinforcement 2, 32 of the horizontal reinforcement 3, and 42 of the rear reinforcement 4 with matching screws S. The top panel 54 is then attached with screws S (Figure 9(b)). The mounting holes 512 of the four drawer rails 51 are attached to the mounting holes 22, 32, and 42 of the front reinforcement 2, horizontal reinforcement 3, and rear reinforcement 4 with matching screws S (Figure 10(a)). Assembly is completed by sliding the drawer 51a into the drawer rail 51 (FIG. 1(b)).

[0041] Figures 11 and 12 show a sleeveless desk with legs 52 on both the left and right sides, two drawers 51a under the top, and a center drawer 51b between them. Figure 11(a) shows the completed state. Figure 11(b) and Figures 12(a) and (b) show the assembly procedure. For each side, the mounting holes 522 of the legs 52 are aligned with the mounting holes 32 of the horizontal reinforcement 3 and attached with screws S, and the back panel 54 is attached with screws S (Figure 11(b)). The mounting holes 512 of the six drawer rails 51 are aligned with the mounting holes 22, 32, and 42 of the front reinforcement 2, horizontal reinforcement 3, and rear reinforcement 4, respectively, and attached with screws S (Figure 12(a)). Assembly is completed by sliding the drawers 51a and 51b into the drawer rails 51 (Figure 12(b)).

[0042] Figures 13 and 14 show a type that has sleeves 53 on both the left and right sides and a drawer 51b under the top panel. Figure 13(a) shows the completed state. Figure 13(b) and Figures 14(a) and (b) show the assembly procedure. The mounting holes 532 of the sleeves 53 are aligned with the mounting holes 22 of the front reinforcement 2, the mounting holes 32 of the side reinforcement 3, and the mounting holes 42 of the rear reinforcement 4 using matching screws S, and the top panel 54 is attached using screws S (Figure 13(b)). The mounting holes 512 of the two drawer rails 51 are aligned with the mounting holes 22 and 42 of the front reinforcement 2 and the rear reinforcement 4, respectively, using matching screws S (Figure 14(a)). Assembly is completed by sliding the drawer 51a onto the drawer rails 51 (Figure 14(b)).

[0043] As shown in Figure 7, the tabletop 1 according to the embodiment of the invention is reinforced with front reinforcement 2, side reinforcement 3, and rear reinforcement 4, improving its strength, and these reinforcements can be used as mounting bases for options such as legs 52, sleeves 53, drawers 51a, and center drawers 51b of office equipment (such as desks). This allows the components other than the tabletop 1 to be the same as those of a standard desk, while also being compatible with multiple variations as shown in Figures 9 to 14. The provision of rear reinforcement 4 makes it possible to attach sleeves 53, drawers 51a, and center drawers 51b.

[0044] According to the embodiment of the invention, the following effects are achieved. The strength of the front side, which requires the most strength in use, can be secured by carving a top plate 1 almost across the entire width of the front side of the office equipment (desk, etc.) to provide a recess 21 and embedding a metallic front reinforcement 2 therein. The strength in the depth direction, where the strength of the composite tabletop is structurally weak, can be secured by carving recesses 31 into the tabletop 1 at both ends of the office equipment (desk, etc.) almost all the way to the depth direction, and embedding metal horizontal reinforcements 3 therein. By carving a recess 41 into the top panel 1 at the rear mid-section of the office equipment (such as a desk) and embedding a metal rear reinforcement 4 there, it becomes possible to attach the above-mentioned options, achieving a configuration similar to that of a standard desk. Options such as drawers tend not to require significant strength in their retaining parts, such as the drawer rails 51. In light of this, by minimizing the size of the rear reinforcement 4, it is possible to both suppress increases in product costs and prevent a decrease in strength due to the carving.

[0045] In other words, by embedding the optimal reinforcing material in the optimal position in each direction of the tabletop 1 according to the embodiment of the invention, it is possible to maintain the required strength at low cost for the completed office equipment or the tabletop alone. By providing reinforcing material in both the width and depth directions, it is possible to prevent deterioration over time such as warping and shrinkage that is unique to wooden tabletops.

[0046] In the top panel 1 according to the embodiment of the invention, by attaching options and the like to the reinforcing member, it is possible to prevent misalignment of the attachment holes during assembly.

[0047] The rear reinforcement 4 of the tabletop 1 according to the embodiment of the invention can be minimized depending on the product lineup, options, etc., thereby preventing an increase in product costs.

[0048] According to the embodiment of the invention, since each reinforcement is embedded in the tabletop, the backside of the composite tabletop can be made flat just like the tabletop of a regular desk, so options such as drawers that are usually provided on the backside of a regular desk can be attached as is. As with regular desks, a common tabletop can be used for various types of desks (flat desk without sleeves, single-sided desk, and double-sided desk).

[0049] According to the embodiment of the invention, the required strength of the top plate alone is maintained by each reinforcement, which reduces the packaging volume of the product and leads to reductions in inventory and transportation costs. [Explanation of symbols]

[0050] 1 Top plate (laminated top plate) 11, 12 Wood piece 11a Joint part 2 Pre-reinforcement 21 Front reinforcement recess 22 mounting holes 3. Lateral reinforcement 31 Recesses for lateral reinforcement 32 mounting holes 4 Post-reinforcement 41 Rear reinforcement recess 42 mounting holes 51 Drawer rail 512 mounting holes 51a Drawer 51b Center drawer 52 Legs (legs) 522 mounting holes 53 Sode (sleeve desk) 532 mounting holes 54 Curtain board 542 mounting holes A Laminated piece A B Laminated piece B D1 Width direction D2 Depth direction J Finger Joint S screw P Width distance of sleeve mounting holes Q Depth distance of sleeve mounting holes R Leg mounting hole spacing T1 Distance between drawer rails (length) T2 Distance between drawer rails (short)

Claims

1. A tabletop is placed on the legs and / or sleeves of office equipment including tables and desks, and the tabletop is a wooden composite tabletop made by joining together a plurality of wooden rod-shaped composite pieces, The surface to which the legs and / or sleeves of the wooden laminated top board are attached, a front reinforcement provided along the width direction near the front end of the wooden laminated top; a plurality of horizontal reinforcements provided along the depth direction near the left and right ends of the wooden laminated top board; Each of the plurality of transverse reinforcements is long enough to cover the plurality of assembly pieces, The front reinforcement is disposed between the plurality of horizontal reinforcements and is long enough not to interfere with any of the plurality of horizontal reinforcements.

2. 2. The wooden worktop according to claim 1, wherein the plurality of horizontal reinforcements are provided at positions where the legs of the office equipment are attached, and the legs are attached to the horizontal reinforcements.

3. The wooden top according to claim 1 or claim 2, further comprising a plurality of rear reinforcements arranged between the plurality of lateral reinforcements on the rear side of the wooden top, the rear reinforcements being smaller than both the front reinforcements and the lateral reinforcements.

4. 4. The wooden top board according to claim 3, wherein the front reinforcement, the plurality of horizontal reinforcements, and the plurality of rear reinforcements are provided at positions where the sleeves of the office equipment are attached, and the sleeves are attached to the front reinforcement, the plurality of horizontal reinforcements, and the plurality of rear reinforcements.

5. the office machine includes a drawer; A wooden composite tabletop as described in claim 3 or claim 4, characterized in that the front reinforcement, the multiple horizontal reinforcements, and the multiple rear reinforcements are provided at the position where the drawer rails are attached, and the drawer rails are attached to the front reinforcement, the multiple horizontal reinforcements, and the multiple rear reinforcements.

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