JP2008125522A - Table whose top plate shape can be changed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a table for which the plane shape of a top plate is changed and a top plate area is expanded or reduced without changing the original length in the long side direction of the top plate and handleability is improved compared to the table of a conventional type of expanding or contracting the long side by performing expansion and contraction on the short side (front and back directions) of the top plate differently from the conventional expansion and contraction top plate table of a type for which a top plate for expansion and contraction is incorporated on the top plate long side (left and right directions). <P>SOLUTION: While a rectangular part 2 surrounded by the outer peripheral part side 3 of the top plate through a separation line is provided on the center part of the top plate 1 dividably matching the center and the rectangular part 2 is bisected to the left and right 21 and 22 at the center, the outer peripheral part side 3 surrounding the rectangular part is divided into 31 and 32 in a direction (the front and back directions of the original top plate) crossing the dividing direction. The divided rectangular parts 21 and 22 are positioned so as to be held between the moved and opened outer peripheral part sides 31 and 32 to form a larger plane short-sized opening 12 at the center part of the top plate, a top plate 13 for enlargement incorporated under the original top plate is raised to the opening 12 by an elevating and lowering mechanism, and the upper surfaces of the respective top plates are matched. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a table capable of expanding and reducing an area by changing a planar shape of a top plate.

  Conventionally, a large number of tables including those proposed in Patent Documents 1 and 2 have been known.

  For a table with a known top plate area that can be enlarged or reduced, if the top plate has a rectangular shape or similar shape, first, both ends or one end in the length direction can be undulated in a so-called butterfly type, or the area can be extended or reduced in a drawer type. There is a form to do. Also, the top plate is divided into left and right at the intermediate part, and an enlargement top plate is incorporated on the lower surface side of the divided part, the divided part is opened in the left and right direction to open the intermediate part, and the empty part is There is also a form (see Patent Document 1) in which the entire top plate surface is aligned by raising the enlargement top plate, and these occupy most of the changes in the conventional top plate area.

Since the above-mentioned area expansion / contraction form is an aspect in which only the long side of the original top plate is expanded or enlarged, the area expansion in the short side direction of the original top plate cannot be performed. However, since the table that expands and contracts the top plate area only in the length direction of the top plate cannot be expanded on the short side of the top plate, two tables with the same top plate shape are used side by side. Compared to the form to be performed, there is only an advantage that only one table is required. Moreover, since the short side of the top plate is not expanded, there is a problem that the feet become cramped when a person arrives to face the long side of the top plate.
Japanese Patent Application Laid-Open No. 60-111604 JP 2004-81668 A

  The present invention is different from a conventional expansion / contraction top table of a type in which an expansion / contraction top plate is incorporated on the long side of the top plate (left / right direction), and is intended to expand / contract on the short side (front / rear direction) of the top plate. By changing the plane shape of the top plate without changing the original length in the long side direction of the top plate, the top plate area can be enlarged and reduced, compared to a conventional type table that enlarges and reduces the long side, The challenge is to provide a table that is easy to use.

The configuration of the present invention table made for the purpose of solving the above problems is as follows.
(B) The central part of the top plate supported by the leg members as appropriate (hereinafter referred to as the top plate surface) is separated from the central part of the top plate on the outer peripheral side and in contact with the enclosed part. That the rectangular part is formed on the top plate surface,
(B) The rectangular portion has a long side that is ½ of the width in the left-right direction of the top plate surface and a short side that is smaller than the width in the front-rear direction of the top plate surface. A point (or the center of the top plate surface) is divided into two on the left and right, and the divided parts are arranged so as to be separated from each other by moving in the left and right direction of the top plate surface;
(C) The outer peripheral side of the top surface surrounding the rectangular portion is divided in the front-rear direction along the long side of the rectangular portion at a point passing through the short side of the rectangular portion, and the divided portion is the top surface. Are arranged so that they can be separated from each other by moving in the longitudinal direction of
(D) On the lower surface side of the center portion of the top plate surface, the long side has the same length as the long side of the rectangular portion, and the short side has a length twice as long as the short side of the rectangular portion. The top plate is arranged so that it can be raised and lowered,
(E) Move the divided outer peripheral part side in the front-rear direction and expand the width of the divided part, and move the divided parts of the divided rectangular part in the left-right direction, respectively. According to the above, the expansion top plate is raised in a rectangular space formed in the center of the top plate surface,
It is characterized by.
According to the present invention, in the above configuration, the rectangular portion is arranged so that the center thereof coincides with the center of the top plate, and the dividing point in the front-rear direction on the outer peripheral portion side is a center on the short side of the rectangular portion. It may be a point.

  In the present invention table, each divided portion of the divided rectangular portion in the above configuration is supported and guided by the divided portion on the outer peripheral portion side which is opened by moving in the front-rear direction of the top plate surface. The structure which can move toward the outer side of the said top plate in the left-right direction is provided.

  In the above-mentioned table of the present invention, the divided outer peripheral side that opens and closes by moving in the front-rear direction of the top plate surface in a state of surrounding the rectangular portion is a slide divided in the same phase as the divided surface on the outer peripheral side. The split legs are supported near the left and right sides of the top plate. Here, the divided legs are slidably held by fixed leg members facing the divided legs that respectively support the divided parts on the outer peripheral side of the top plate. Further, the expansion top plate is lifted and lowered by a lift mechanism disposed between the expansion top plate and the fixed leg member.

The invention table has been described above.
(B) The central part of the top plate supported by the leg members as appropriate (hereinafter referred to as the top plate surface) is separated from the central part of the top plate on the outer peripheral side and in contact with the enclosed part. That the rectangular part is formed on the top plate surface,
(B) The rectangular portion has a long side that is ½ of the width in the left-right direction of the top plate surface and a short side that is smaller than the width in the front-rear direction of the top plate surface. A point (or the center of the top plate surface) is divided into two on the left and right, and the divided parts are arranged so as to be separated from each other by moving in the left and right direction of the top plate surface;
(C) The outer peripheral side of the top surface surrounding the rectangular portion is divided in the front-rear direction along the long side of the rectangular portion at a point passing through the short side of the rectangular portion, and the divided portion is the top surface. Are arranged so that they can be separated from each other by moving in the longitudinal direction of
(D) On the lower surface side of the center portion of the top plate surface, the long side has the same length as the long side of the rectangular portion, and the short side has a length twice as long as the short side of the rectangular portion. The top plate is arranged so that it can be raised and lowered,
(E) Move the divided outer peripheral part side up and down and move the divided part of the rectangular part into the space formed by expanding the width of the divided part and move it to the left and right. According to the above, the expansion top plate is raised in a rectangular space formed in the center of the top plate surface,
If the top plate has a rectangular shape, the top plate area can be enlarged or reduced on the short side (front-rear direction) of the top plate. Therefore, the expansion / contraction mode is completely different from that of the conventional expansion / contraction top plate that can be expanded only on the long side (left-right direction), and therefore, the usability is extremely excellent.
Further, in the present invention, since the configuration is such that the short side of the top plate expands and contracts, the foot space can be expanded on the depth side of the top plate when expanded, so that the foot is cramped even when used by a large number of people. Never become.
The present invention can be applied not only to the original top plate shape of an ellipse but also to an oval or a rectangle, a square, a regular circle, or an arbitrary polygon. This point will be described later. In addition, it is not always necessary for the rectangular portion to have its center coincident with the center of the top plate. Further, the planar shape of the rectangular portion itself is not rectangular or curved on each side, for example, oval. Can also be formed on the table of the present invention.

  Next, an embodiment of the present invention table will be described with reference to the drawings. FIG. 1 is a plan view of an example of the table of the present invention before the top plate is expanded (enlarged), FIG. 2 is a side view from the left (or right) of the table of FIG. 1, and FIG. FIG. 4 is a central longitudinal section of the table of the present invention of FIGS. 1 to 3, FIG. 5 is a plan view of the table of the present invention in which the top plate of the table of FIG. 1 is enlarged, and FIG. 6 is a side view of the table of FIG. FIG. 7 is a central longitudinal side view of the table of FIG. 5, and FIG. 8 is an enlarged cross-sectional view of the main part for explaining the ascending position of the magnifying top plate. The front table of the enlarged top table according to the present invention shown in FIGS. 5 to 7 also appears in the same manner as FIG. This is because the length of the long side of the top plate does not change regardless of the size of the top plate.

  In FIG. 1, reference numeral 1 denotes a table top to which the present invention is applied. Here, as an example, an ellipse-shaped top plate is used as viewed from above. Of course, the top plate to which the present invention is applicable is not limited to the illustrated example, but this point will be described later.

  In the central portion of the top plate 1 in FIG. 1, a rectangular portion 2 whose entire periphery is surrounded by a separation line on the outer peripheral side 3 of the top plate 1 is symmetrical both vertically and horizontally with respect to the center CP of the top plate 1. In other words, the center CP of the top plate 1 and the center of the rectangular portion 2 are aligned. Further, the rectangular portion 2 is divided into left and right at a midpoint with respect to the long side. Here, 21 and 22 are given to the left and right divided parts, respectively.

  On the other hand, the outer peripheral side 3 that surrounds the periphery of the rectangular part 2 via the separation line is such that the left and right sides (outside of the surrounding rectangular part 2) are the left and right short sides 2a of the rectangular part 2. At the midpoint, the top plate 1 is divided in the front-rear direction (upper and lower in FIG. 1) by dividing lines 3a and 3b parallel to the long side 2b of the rectangular portion 2. Here, 31 and 32 are given to the front and rear divided parts on the outer peripheral side 3, respectively.

  If the said structure is required, the original top plate 1 is divided into right and left, the rectangular part 2 arrange | positioned in the center site | part of the top plate 1, and this rectangular part 2 is enclosed by a separating line, and the left and right side is enclosed. The part is composed of an outer peripheral side 3 divided front and rear, and the rectangular part 2 is divided into left and right divided parts 21 and 22, respectively, and the outer peripheral part 3 is divided into front and rear divided parts 31 and 32, respectively. It has the structure which was made.

In the illustrated example, the following configuration is provided on the lower surface side of the top plate 1 having the above configuration.
In FIGS. 1 and 3, reference numerals 4 and 5 denote left and right fixed leg members disposed on the lower surface side of the top plate 1 near the left and right sides, where the left and right short sides 2a of the rectangular portion 2 are located. Is a base member installed between the upper parts of the leg members 4 and 5 to connect the left and right fixed leg members 4 and 5. On the upper surface side of the leg members 4 and 5 and the base member 6, A frame-like frame F that supports the top plate 1 is mounted. The base member 6 has a hollow cross section in the illustrated example (see FIG. 4).

  7a, 7b and 8a, 8b are slidably mounted on the outer surfaces of the leg members 4, 5, respectively, through slide rails 9a, 9b in a horizontal posture arranged above and below, respectively. It is a split leg. On the left and right divided legs 7a, 8a, 7b, 8b, the divided portions 31 and 32 on the outer peripheral side 3 divided forward and backward in the figure are mounted on the left and right sides in their length direction. As shown in FIG. 6, the two divided portions 31 and 32 on the outer peripheral side 3 divided by this are formed so as to be slidable to the sides that are separated from each other (the front and rear direction of the top plate 1). Yes.

  10a, 10b, 11a, and 11b support the top plate 1 that overhangs from the divided legs 7a and 7b and 8a and 8b and protrudes to the left and right, so that the divided legs 7a and 7b are supported from below. 8a and 8b are surface split arms (or brackets) provided so that the split surfaces are brought into close contact with, for example, an attracting force of a magnet or the like.

  In the figure, 7c and 8c are casters provided on the lower surfaces near the outer sides of the divided legs 7a and 7b and 8a and 8b, respectively, and the movement of the divided legs 7a and 7b and 8a and 8b is performed. This is to make it smooth. Further, although not shown in the drawing on the divided surfaces of the divided portions 31 and 32 on the outer peripheral side 3, the guides (such as grooves and rails) that support and guide the movement of the divided portions 21 and 22 of the rectangular portion 2 ( (Not shown) is provided. On the other hand, although not shown, rollers (rolling elements) and sliders (sliders) that are supported and guided by the guides are provided on side portions and side surfaces along the moving direction of the divided portions 21 and 22 of the rectangular portion 2. Yes.

  With the above configuration, the table of the present invention having the top plate 1 having the original size and shape shown in FIGS. 1 to 4 has the divided portions 31 and 32 on the outer peripheral side 3 of the top plate 1 in the front-rear direction (see FIG. 5 is moved by the action of the slide rails 9a and 9b and casters 7c and 8c in the vertical direction of FIG. 6, FIG. 6 and FIG. In FIG. 5, the divided parts 21 and 22 in the part 2 are moved in the left-right direction in the drawing and fitted. As a result, the top plate 1 is deformed into a top plate 1 having a planar rectangular opening 12 that is largely open in a substantially square shape at the central portion of the top plate 1 (see FIG. 5).

  In the above, the movement amount of the divided portions 31 and 32 on the outer peripheral side 3 is, for example, the fixed legs 4 and 5 and the divided legs so that the divided portions 21 and 22 in the rectangular portion 2 fit into the open portion. It is regulated by a mechanical movement (opening) limiter provided on the bodies 7a, 7b, 8a, 8b. Further, the movement ends in the left-right direction of the divided portions 21 and 22 in the rectangular portion 2 (the operation end where the divided portions 31 and 32 on the outer peripheral side 3 enter the open gap) are also separated by the stopper (not shown). , 32 should not remain on the near side of the gap formed by the opening, or protrude to the opposite side.

  Further, in the present invention, when the divided portions 31 and 32 are opened back and forth, and the divided portions 21 and 22 of the rectangular portion 2 are moved left and right between the opened portions, the slides of the divided portions 21 and 22 are linearly moved. For the purpose of guiding, the slide-shaped narrow groove 13a is provided on the upper surface of the magnifying top plate 13, while the section-shaped guide member (not shown) is guided in the narrow groove 13a on the lower surface of the divided portions 21 and 22. May be provided.

  As shown in FIG. 5, the substantially rectangular opening 12 formed large in the center is formed by the enlargement top plate 13 accommodated in the frame F under the top plate. Between the left and right sides of the top plate 13 and the left and right fixed leg members 4 and 5, it is lifted by lifting means (not shown in the figure) such as a lifting cylinder or a link mechanism connected to both. The top plate 13 is positioned so that the top surface of the top plate 13 is aligned with the top surface of the top plate 1 that is deformed by movement. As illustrated in FIG. 8, this positioning is performed by a step portion 12 a provided at the opening portion 12 formed by the edge of the divided portions 31 and 32, which is formed by the step portion 13 a formed at the outer edge of the enlargement top plate 13. It can also be performed by positioning means such as abutting on the surface.

  By the above, this invention table which was the aspect seen from the plane, the front, and the side shown in FIGS. 1-3 is changed into the table of the aspect seen from the plane, the side shown in FIG. 5 and 6 are compared with FIGS. 1 and 2, the table of the present invention in which the top plate 1 is enlarged is the length in the left-right direction (front width) viewed from the front of the top plate 1. ) Does not change, the table mode seen from the front appears the same as in FIG.

  As described above, in the table of the present invention, the top plate 1 is changed by changing the length of the top plate 1 in the short side direction, as apparent from the comparison between FIGS. 1 and 5 and FIGS. 2 and 6. It is possible to increase the width in the front-rear direction (depth direction) of 1 and considerably change the top plate shape to enlarge the area. Moreover, since this invention table has the said effect | action, a several person can arrive to the right-and-left side of the expanded top plate 1. FIG. As a result, for example, it is possible to obtain an effect that communication in a conference or a meeting can be easily performed, compared with a conventional top plate that is enlarged only on the long side (left and right direction). In addition, since the foot space in the front-rear direction below the top plate is expanded by expanding the front-back direction (depth direction) of the top plate, the foot is not cramped even in a conference with many people.

  1 to 8, the embodiment of the table of the present invention is the one in which the present invention is applied to the fine elliptical top plate 1 of FIG. 1, but the top plate 1 to which the present invention can be applied is Of course, it may be an oval or rectangular top plate having a shape similar to that of the top plate 1 of FIG. 1, but other than these, a square or a regular circle, or other circular top plate or polygonal top plate may be used. Applicable.

  In short, a rectangular portion surrounded by a separation line on the outer peripheral side of the top plate is provided at the center of the original top plate (before enlargement) so that the center of the rectangular portion can be divided and divided. The part is divided into two parts at the center on the left and right sides, and the outer peripheral part surrounding the rectangular part is divided in a direction crossing the dividing direction (the front and rear direction of the original top plate), and the divided rectangular part is Positioned so that it is sandwiched between the open and outer peripheral side, a large flat rectangular opening is formed in the center of the top plate, and the expansion ceiling that was built under the original top plate in this opening It is only necessary to lift the plate by a lifting mechanism and align the top surfaces of the top plates.

  In other words, when the length of the long side of the rectangular portion 2 is 2a, the left and right widths of the left and right side portions where the divided portions 31 and 32 are opened on the outer peripheral side 3 can be set to a length a. To form. In other words, the length of the top plate 1 in the left-right direction (or the effective length of the long side) is 4a, and the length 4a is the length 2a of the long side of the rectangular portion and the left side 21 of the rectangular portion 2. The right side 31 and the right side 31 are respectively designed so as to have a length a. The length b of the short side of the rectangular portion 2 is longer than the length c of the side (or short side) in the front-rear direction of the original top plate 1. It is necessary to make it smaller.

  In order to return the table of the present invention (see FIGS. 2 and 6), which has been deformed from the top plate 1 and expanded by the top plate 13 for enlargement, to the original table of the top plate 1, the operation procedure for the above-described deformation and expansion is used. May be operated in the reverse order. In other words, the enlargement top 13 is lowered, and the divided portions 21 and 22 of the rectangular portion 2 that have been moved to the left and right sides are drawn in the left-right direction so as to contact each other, and the divided portions on the outer peripheral side 3 When 31 and 32 are attracted and brought into close contact with each other in the front-rear direction, a table having the size and shape of the original top plate 1 shown in FIGS.

  Here, when the divided portions 21 and 22 of the rectangular portion 2 are pulled back toward the center CP side of the top plate 1 so as to come into contact with each other from the left and right outer sides, The center mark CP may be formed on the upper surface of the plate 13 as a minute convex portion. Then, if the semicircular concave portions that match the convex portions CP are formed on the opposed lower surfaces on the center side of the divided portions 21 and 22, each divided portion 21 cannot move beyond the convex portions 21. , Can be positioned at a predetermined position.

  Further, when the two divided portions 21 and 22 of the rectangular portion 2 are positioned at the center mark CP, the opened divided portions 31 and 32 on the outer peripheral side 3 become the divided legs 7a and 7b and 8a and 8b. Are moved closer to each other in the longitudinal direction. At this time, the divided portions 21 and 22 of the rectangular portion 2 that have been positioned in contact with each other by the center mark CP are smoothly slid into the recesses formed by the divided portions 31 and 32 that approach in the front-rear direction. Therefore, it is preferable to form the outer end surfaces of the divided portions 21 and 22 on a shallow slope with a shallow angle. Then, since the corner part located in the moving direction front-end | tip of the division | segmentation part 31 and 32 of the outer peripheral part 3 approaching mutually can pass smoothly the corner | angular part of the division | segmentation part 21 and 22, the said division | segmentation part 31, It is possible to prevent 32 from being caught by the corners of the divided portions 21 and 22 and from stopping or rattling. The above embodiment is an example in which the center of the top plate and the center of the rectangular portion are aligned, but in the present invention, the center of the top plate and the center of the rectangular portion are not necessarily aligned. The table of the present invention can be formed, and the rectangular portion can be replaced with an oval portion, a rectangular portion with a bent rectangular side, or a horizontally long hexagonal portion. .

The present invention is as described above.
(B) The central part of the top plate supported by the leg members as appropriate (hereinafter referred to as the top plate surface) is separated from the central part of the top plate on the outer peripheral side and in contact with the enclosed part. That the rectangular part is formed on the top plate surface,
(B) The rectangular portion has a long side that is ½ of the width in the left-right direction of the top plate surface and a short side that is smaller than the width in the front-rear direction of the top plate surface. A point (or the center of the top plate surface) is divided into two on the left and right, and the divided parts are arranged so as to be separated from each other by moving in the left and right direction of the top plate surface;
(C) The outer peripheral side of the top surface surrounding the rectangular portion is divided in the front-rear direction along the long side of the rectangular portion at a point passing through the short side of the rectangular portion, and the divided portion is the top surface. Are arranged so that they can be separated from each other by moving in the longitudinal direction of
(D) On the lower surface side of the center portion of the top plate surface, the long side has the same length as the long side of the rectangular portion, and the short side has a length twice as long as the short side of the rectangular portion. The top plate is arranged so that it can be raised and lowered,
(E) Move the divided outer peripheral part side in the front-rear direction and expand the width of the divided part, and move the divided parts of the divided rectangular part in the left-right direction, respectively. According to the above, the expansion top plate is raised in a rectangular space formed in the center of the top plate surface,
As a requirement, deformation and expansion are possible on the short side (front-rear direction) of the top plate, so that there is an advantage that cannot be obtained with a conventional table top type table in terms of user-friendliness.

The top view of an example of this invention table before expanding (enlarging) a top plate. The side view from the left (or right side) of the table of FIG. The front view of the table of FIG. The center longitudinal cross-section of this invention table of FIGS. 1-3. The top view of this invention table which expanded the top plate of the table of FIG. The side view of the table of FIG. The center vertical side view of the table of FIG. The expanded sectional view of the principal part for demonstrating the raise position of the top plate for an expansion.

Explanation of symbols

1 Top plate 2 Rectangular part
21, 22 Left and right divided parts of the rectangular part 3 3 Outer part side
31, 32 Divided portions in the front-rear direction of the outer peripheral side 3 4, 5 Left and right fixed leg members 6 Base members for coupling the fixed leg members 4, 5
7a, 7b, 8a, 8b Left and right split legs
9a, 9b Slide rail
10a, 10b, 11a, 11b Left and right surface split arms
12 opening
13 Magnifying top

Claims (7)

(B) The central part of the top plate supported by the leg members as appropriate (hereinafter referred to as the top plate surface) is separated from the central part of the top plate on the outer peripheral side and in contact with the enclosed part. That the rectangular part is formed on the top plate surface,
(B) The rectangular portion has a long side that is ½ of the width in the left-right direction of the top plate surface and a short side that is smaller than the width in the front-rear direction of the top plate surface. A point (or the center of the top plate surface) is divided into two on the left and right, and the divided parts are arranged so as to be separated from each other by moving in the left and right direction of the top plate surface;
(C) The outer peripheral side of the top surface surrounding the rectangular portion is divided in the front-rear direction along the long side of the rectangular portion at a point passing through the short side of the rectangular portion, and the divided portion is the top surface. Are arranged so that they can be separated from each other by moving in the longitudinal direction of
(D) On the lower surface side of the center portion of the top plate surface, the long side has the same length as the long side of the rectangular portion, and the short side has a length twice as long as the short side of the rectangular portion. The top plate is arranged so that it can be raised and lowered,
(E) Move the divided outer peripheral part side in the front-rear direction and expand the width of the divided part, and move the divided parts of the divided rectangular part in the left-right direction, respectively. According to the above, the expansion top plate is raised in a rectangular space formed in the center of the top plate surface,
A table that can change the top plate shape.   2. The top plate according to claim 1, wherein the rectangular portion is arranged so that the center thereof coincides with the center of the top plate, and the dividing point in the front-rear direction on the outer peripheral side is a midpoint on the short side of the rectangular portion. A table whose shape can be changed.   The divided rectangular portion is supported and guided by the opposing surface portion of the divided portion on the outer peripheral portion side, which is opened by moving each divided portion in the front-rear direction of the top plate surface. The table which can change the top-plate shape of Claim 1 or 2 provided with the structure which moves toward the direction.   The divided outer peripheral side, which moves in the front-rear direction of the top plate surface in a state of surrounding the rectangular portion and opens and closes, is divided by the sliding divided legs divided in the same phase as the divided surface on the outer peripheral side. The table which can change the top-plate shape in any one of Claims 1-3 supported in the downward vicinity of the left-right side of the rectangular part in a board.   The table which can change the top-plate shape in any one of Claims 1-4 which replaced with the rectangular part and formed the oval part or the horizontally long hexagonal part in the top-plate surface.   The table which can change the top-plate shape of Claim 4 or 5 with which a division | segmentation leg is slidably hold | maintained at the fixed leg member facing each division | segmentation leg which supported each division | segmentation part by the side of a top-plate outer peripheral part.   The table capable of changing the shape of the top plate according to claim 6, wherein raising and lowering of the enlargement top plate is performed by an elevating mechanism disposed between the enlargement top plate and the fixed leg member.

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