Portable work surface formed by two independent and symmetrical wood pieces

Abstract

The present invention relates to a work surface formed by two symmetrical plywood boards, which rests on and uses a foldable multipurpose ladder in order to be assembled, thereby solving the problem of the lack of a practical, portable, safe and low-cost workbench for domestic use, comprising exactly identical first and second (opposite) plywood boards arranged on a support surface in an opposing or mirroring manner in order to assemble a workbench. Said plywood boards are positioned on and supported by an unfolded conventional multipurpose ladder arranged in the form of a bench or support surface. The plywood boards are formed by two upper boards and two lower boards that are sandwiched together. Fifteen cylindrical holes with a smaller diameter are provided in the surface of the upper boards and the lower boards, which pass through both the upper and lower boards and can receive different clamping and attachment devices extending therethrough. A stylised oval hole is centrally located close to the outward-oriented end of each board, which extends through both the upper and lower boards and through which a hand can be passed in order to handle, transport and arrange the boards on the surface serving as a bench, formed by the folded metal ladder.

Description

[0001] PORTABLE WORK SURFACE FORMED BY TWO SEPARATE SYMMETRICAL PIECES OF WOOD

[0002] Description

[0003] Field of Invention

[0004] The present invention relates to an innovative system for assembling a portable workbench which rests on the surface of a conventional multipurpose ladder, deployed horizontally as a table, specifically with a work surface formed by two separate symmetrical pieces of wood, quick and easy to assemble of a certain length whose section is rectangular, which allows working as a workbench, use of different bench tools on its surface and additionally can be used for fixing and assembling pieces on its surface or the required requirements according to the tool to be used, fixing them by means of clamps placed through perforations made on its surface or on its edges, with a firm and reliable support provided by the use of an deployed conventional multipurpose ladder.

[0005] Background of the Invention

[0006] The following discussion of the prior art is intended to present the invention in an appropriate technical context and to enable its advantages to be properly appreciated. However, unless clearly indicated otherwise, reference to any prior art in this specification should not be construed as an express or implied admission that such art is widely known or forms part of common general knowledge in the bench or work surface field.

[0007] In general, work surfaces have been used as workbenches, where most are designed for specific purposes such as cutting, mitering, or drilling tables with a very narrow work surface, or as structures in the form of metal ladders with platforms to step on, oriented to the field of construction and masonry work, or as a support surface to be stepped on by a worker.

[0008] In the state of the art, one should consult Japanese patent document No. JP5436236B2 related to a workbench formed based on a metal ladder-shaped structure, metal work surface, not very portable and could not be stored inside a home, oriented to the industrial sector, or construction work on a construction site.

[0009] Likewise, Japanese patent document No. JP2008266978A should be consulted, very similar to the previous patent, a portable workbench based on a metal structure in the form of a ladder, non-portable, oriented towards the field of masonry and construction, without being able to use it in a home.

[0010] Therefore, a system is needed to overcome the aforementioned problems.

[0011] Summary of the Invention

[0012] It is an object of the invention to provide a work surface, a device that is related to plates for assembling a workbench, which makes use of a conventional multipurpose ladder as a support to simplify the assembly and disassembly of the work surface and allow the assembly of a workbench.

[0013] This solves the problem of not having a suitable workbench. These are generally small, unstable, and have limited work surface area, or are only for industrial use, not for a home workshop or small business.

[0014] This and other objectives, which will be evident below, are achieved by means of the work surface, highly versatile, modular, portable, easy to assemble, disassemble and store, takes up little space, which additionally makes use of a multipurpose folding ladder common in all homes, providing a very good working height, large work surface, stable, as defined in claim 1.

[0015] In a first aspect, a work surface

[0016] Brief Description of the Figures

[0017] So that the present invention may be more easily understood, reference will now be made to the accompanying figures in which a preferred embodiment of the invention is illustrated and in which:

[0018] Figure 1 shows a bottom and top plan view, left side elevation, front elevation, cut along line AA, cut along line BB and cut along line CC of the upper plywood plate, according to the invention.

[0019] Figure 2, 3, and 4 show a top and bottom plan view, and a front elevation of the wooden accessory pieces for support, according to the invention.

[0020] Figure 5 shows a bottom perspective view of the plywood plate, according to the invention.

[0021] Figure 6 shows a perspective view of the plywood plates arranged on a multipurpose folding ladder to be assembled, which ladder acts as a base, according to the invention.

[0022] Figure 7 shows a perspective view of the plywood plates, with the accessory pieces of wood for support on their surface, arranged on a multipurpose folding ladder which acts as a base, already assembled, in accordance with the invention.

[0023] Figure 8 shows a perspective view of the plywood plates arranged on a multipurpose folding ladder which acts as a base, already assembled. On its surface, different tools and quick presses can be seen installed and allowing them to be used simultaneously, in accordance with the invention.

[0024] Detailed Description of the Invention

[0025] The present invention will now be described with reference to the following embodiments, which should be considered in all respects as illustrative and not restrictive. In the figures, corresponding features within the same embodiment or common to different embodiments have been assigned the same reference numerals.

[0026] In figure 1, you can see a bottom and top plan view, left side elevation, front elevation, cut along line AA, cut along line BB and cut along line CC of the plywood plates (1 and 2 opposite), in the top plan view of the plate (1) you can see the general shape of a landscape rectangle with its rounded vertices (V), towards the left side face (Ll) it can be seen that the upper rectangular plate (1) made of plywood, reduces its width symmetrically to form a rectangular portion of smaller dimensions (3) coinciding with the width of the lower plate (2), until it limits on the left side face (Ll).

[0027] As can be seen on the surface of both plates, both upper (1 and 2 opposite) and lower (4 and 5 opposite), three equidistant rows of five cylindrical perforations of smaller diameter (6) are located on their surface, parallel to the axis of the X, locating a total of fifteen cylindrical perforations of smaller diameter (6), which cross in a coincident manner both the upper plate of plywood (1 and 2 opposite) and the lower plate of plywood (4 and 5 opposite) already assembled in the form of a sandwich.

[0028] These smaller diameter cylindrical perforations (6) allow the passage through them of accessory pieces of wood for support (15), quick clamps (16), fixing elements (F) for portable tools, and other devices (7) so as to be able to fix and secure on their surface eventually the majority of the usual workshop tools.

[0029] Coinciding between both plates formed as a sandwich, the upper plate of plywood (1 and 2 opposite) as well as the lower plate of plywood (4 and 5 opposite) are located towards the right side face (LD) of the upper plate of plywood (1) and lower plate of plywood (4) and left side face (Ll) of the upper plate of opposite plywood (2) and lower opposite plywood (5), centered with respect to the axis of the X, a stylized oval perforation of larger size (8), which allows to pass the hand through it and lift either the plate (1 and 2 opposite) together with the lower plates joined in a solidary manner (4 and 5 opposite) for its location and positioning on the horizontal surface of the support ladder (9), and allow to slide both the piece (1 and 2 opposite) inwards or outwards in the direction parallel to the axis of the X,bringing together or separating said surfaces (1 and 2 opposite) according to the user's requirements or the type of tools (7) to be used, this side comprising the previously mentioned larger stylized oval perforation (8) is arranged outwards, located on the support surface that forms the folding multipurpose ladder (9) assembled as a bench.

[0030] As can be seen in the bottom plan view, both on the bottom plate (4 and 5 opposite) on its surface are located eight circular perforations (10) of smaller dimension that allow to pass through them suitable fixing elements for example wood screws / dowels (1 1) which allow to join in a solidary manner both upper plates (1 and 2 opposite) with the bottom plate (4 and 5 opposite), where the arrangement of the perforations (10) is the following, two rows of three perforations (10) parallel to the front and rear face, centered with respect to the axis of the X, two perforations (10) are located to allow to pass through the suitable fixing elements wood screws / dowels (11) without crossing the upper plate (1 and 2 opposite).

[0031] In the cut along the line AA, BB and CC you can see the smaller diameter cylindrical perforations (6), and the larger stylized oval perforation (8), passing through both plywood plates (1 and 2 opposite) as well as the lower plywood plate (4 and 5 opposite).

[0032] In figure 5, a bottom perspective view of the top plate (1 and 2 opposite) and the bottom plate (4 and 5 opposite) can be seen assembled and screwed together by means of suitable fixing elements such as wood screws / dowels (11). The smaller diameter cylindrical perforations (6) and the larger stylized oval perforation (8) can be seen, which allows the hand to pass through and lift either the plate (1 and 2 opposite) in order to position them for use on the multipurpose folding ladder (9) or for transport.

[0033] In figure 6, a perspective view of the symmetrical plates (1 and 2 opposite) can be seen, that is to say two exactly the same ones arranged on a support surface, to assemble a work bench, which are supported and accommodated on a conventional multipurpose ladder (9) arranged as a bench or support surface, pieces formed by a first and second upper plate of plywood (1 and 2 opposite) in the form of a larger flattened rectangular prism with rounded vertices (V).Both the lower plate (4) and (5 opposite) have their outer longitudinal vertices parallel to the X axis or front (A) and back (P) face, so that they coincide and fit tightly with the inner separation (12) between each stringer beam (13) that forms the multipurpose ladder (9), so as to allow them to slide in and out parallel to the longitudinal axis or X axis, either bringing them closer or separating them from each other to limit or move away with reference to the point of union or limit (14) or, according to the tool to be used or the work to be developed, and at the same time avoid transverse displacement, that is, parallel to the Y axis.

[0034] In figure 7, a perspective view of the plates (1 and 2 opposite) assembled and arranged on the surface of the folding multipurpose ladder (9) assembled as a bench can be seen, on whose surface one can see towards the left side face (Ll) a larger square-shaped wooden accessory piece for support (15), towards the center or point of union or limit (14) of both plates (1 and 2 opposite), four smaller square-shaped wooden accessory pieces for support (15) are located, used to adjust the separation between the plates (1 and 2 opposite) by means of quick presses (16), towards the right side end (LD) a larger rectangular-shaped wooden accessory piece for support (15) is located.

[0035] Figure 8 shows the arrangement of different workshop tools (7) placed and fixed by means of press type tools (16) passed through the cylindrical perforation of smaller diameter (6) required, allowing different workshop tools (7) to be supported on each plate (1 and 2 opposite) at the same time and allowing each one to be used.

[0036] Of course, it will be understood that while the foregoing has been provided by way of illustrative example of this invention, all such and other modifications and variations which will be apparent to those skilled in the art are deemed to be within the broad scope and ambit of this invention as set forth herein.

[0037] Industrial Application

[0038] The present invention, according to its application, finds use in industry, and in particular in the carpentry industry for the production of portable work surfaces, small workshops, goldsmith's workshop, home workshop, electronics.

[0039] List of reference numerals

[0040] 1 Upper plywood plate

[0041] 2 Opposite top plywood plate

[0042] 3 Rectangular shaped portion of smaller dimensions

[0043] 4 Lower plywood plate

[0044] 5 Opposite lower plywood plate

[0045] 6 Cylindrical perforations of smaller diameter (15)

[0046] 7 Tools

[0047] 8 Larger stylized oval piercing

[0048] 9 Multipurpose folding metal ladder

[0049] 10 circular holes for suitable fixing elements

[0050] 11 Suitable fixing elements e.g. wood screws / dowels

[0051] 12 Interior separation of metal staircase between stringer beam

[0052] 13 Metal Staircase Beams

[0053] 14 Point of union or limit of plates

[0054] 15 Pieces of wood for support

[0055] 16 Quick press type tool

[0056] A Front Face

[0057] P Back side

[0058] Left side

[0059] LD Right Back

[0060] V Rounded vertices

Claims

CLAIMS 1. A work surface formed by two symmetrical plywood plates, which rests on and makes use of a folding multipurpose ladder so as to be assembled, which solves the problem of the lack of a practical and portable workbench, CHARACTERIZED because it includes: - a first and second plywood plate (1 and 2 opposite) exactly identical, arranged on a support surface in an opposite or mirror-like manner, to assemble a workbench, which are supported and accommodated on a conventional multipurpose ladder (9) unfolded arranged as a bench or support surface, - formed by two upper plates (1 and 2 opposite) and two lower plates (4 and 5 opposite) joined together in a sandwich fashion, - a first and second upper plate of plywood (1 and 2 opposite) in the form of a larger flattened rectangular prism with rounded vertices (V) where towards the rear end or right side face (LD) of the upper plate of plywood (1 and 2 opposite) and right side face (LD) of the lower plate of plywood (4 and 5 opposite), a rectangular portion of smaller dimensions (3) projects inwards towards a joining point or limit of both plates (1 and 2 opposite) maintaining the same level, this decrease in the width of the upper plate (1 and 2 opposite) allows these plates (1 and 2 opposite) to be accommodated on the surface of a multipurpose folding metal ladder (9), arranged as a bench, and additionally allowing space for circular hinges of said multipurpose folding metal ladder (9), - towards the lower end of each of the first and second upper plywood plates (1 and 2 opposite) there is located centered with respect to the longitudinal axis or axis of the X, a first and a second lower plywood plate (4 and 5 opposite) in the form of a rectangular prism of the same thickness as the first and second piece of plywood (1 and 2), but of a smaller width, keeping the same width of the rectangular portion (3), - these lower plates (4 and 5 opposite) have their outer longitudinal vertices parallel to the axis of the X or front (A) and rear (P) faces, so that they coincide tightly with an inner separation (12) between each side member beam (13) and the lower face formed by the plate (4 and 5 opposite) of the pieces (1 and 2 opposite) rest their surface on each upper face of some rungs of the multipurpose folding metal ladder (9) thus obtaining a firm and at the same time sliding support, - these anterior (A) and posterior (P) vertices allow the plywood plates (1 and 2 opposite) to move outwards and inwards in the direction parallel to the X axis or longitudinal axis, - where the upper plywood plates (1 and 2 opposite) are joined to the lower plates (4 and 5 opposite) through eight smaller circular perforations (10) that allow suitable fixing elements to pass through them, for example wood screws / dowels (1 1 ), where the arrangement of the perforations (10) is the following, two rows of three perforations (10) parallel to the front and rear faces, centered with respect to the X axis, two perforations (10) are located to allow suitable fixing elements to pass through, for example wood screws / dowels (11 ) without passing through the upper plate (1 and 2 opposite), - towards the right side face (LD) there is a larger stylized oval perforation (8) that crosses both the surface of the upper plywood plates (1 and 2 opposite) and the lower plywood plates (4 and 5 opposite), oriented towards the left side faces (Ll) and right side faces (LD) which allows the plates (1 and 2 opposite) to be taken and placed on the ladder as a support (9), and - on the surface of the upper plates (1 and 2 opposite) and lower plates (4 and 5 opposite) there are fifteen cylindrical perforations of smaller diameter (6) arranged equidistantly and parallel to the axis of the X, which cross both upper plates (1 and 2 opposite) and lower plates (4 and 5 opposite), and allow to place through them, different devices, accessory pieces of wood for support (15), quick clamps (16) and fixing elements (F).

2. The work surface according to claim 1, CHARACTERIZED in that both the bottom plate (4) located under the plywood plate (1), and the opposite bottom plate (5) located under the opposite plywood plate (2), have a width that fits or coincides tightly with an interior separation or spacing (12) between each stringer beam (13) of the structure of a multipurpose ladder (9).

3. The work surface according to claim 2, CHARACTERIZED in that the adjusted fit together with the straight vertices of the front face (A) and back face (P) of the lower plates (4 and 5 opposite) allow the plates (1 and 2 opposite) to slide inwards and outwards in a direction parallel to the longitudinal axis or axis of the X, either bringing them closer or separating them from each other to limit or move away with reference to a point of union or limit (14).

4. The work surface according to claim 3, CHARACTERIZED in that the vertices of both the front face (A) and the back face (P) of each lower plate (4 and 5 opposite) fitted and adjusted in a sliding manner in the direction of the X axis, at the same time prevent the displacement of the plates (1 and 2 opposite) in the transverse direction or Y axis, securing them in place.

5. The work surface according to claim 4, CHARACTERIZED in that for the union of both the upper plywood plates (1 and 2 opposite) with the lower plywood plates (4 and 5 opposite) eight screws or eight dowels (11) are used, placed in each of the circular perforations (10) screwed or pressed in the case of dowels from below in an upward direction without passing through the upper plates (1 and 2 opposite).

6. The work surface according to claim 5, CHARACTERIZED because fifteen cylindrical perforations of smaller diameter (6) made from the surface of the plywood plates (1 and 2 opposite) crossing the lower plates (4 and 5 opposite) allow to pass through them, presses (15), fixing elements for portable tools (7), accessories of the plates (1 and 2 opposite) and other devices so as to be able to fix and secure on its surface eventually the majority of common workshop tools (7).

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