JP2007175089A - Frame structure of table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a frame structure of a table, which has good assemblability, sufficient supporting strength relative to a connection frame member of a top board receiver, and rigidity and good appearance. <P>SOLUTION: In the frame structure, the top board 2 is supported by a plurality of supporting legs 4 and connection frame rods 6 for connecting the supporting legs 4. In the frame structure, the top board receiver 10 is supported at the leg 4 so as not to be turned, the top board receiver 10 includes a fitting projection 11 fitting to an end 7 of the connection frame rod 6, side walls 12 covering the right and left sides of the fitting projection 11, abutting on or adjoining the opposite side surfaces of the connection frame rod 6, and connecting piece 13 connecting the upper parts of the right and left side wall 12, having the upper surface protruded upward from the right and left side walls, and having the lower surface abutting on or adjoining an upper surface of the connection frame rod 6. The top board 2 has a lower surface 3 abutting on or adjoining the upper surfaces of the right and left sidewalls 12, and the lower surface 3 of the top board 2 has notched portions 3a fitted with the connecting pieces 13. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a frame structure of a table in which a top plate is supported by a plurality of support legs and a connecting frame rod that connects the support legs.

  In the conventional table frame structure in which the top plate is supported by a plurality of support legs and connecting frame rods connecting the support legs, a female screw member is driven into the upper end of a pipe-shaped leg (support leg) and fixed to the leg. The coupling member (top plate holder) provided with a fitting groove into which the brazing material (the connecting frame rod) can be fitted is fixed to the female screw member with a bolt, and the flat plate extending from the coupling member is screwed to the deck (top plate). It was. (For example, refer to Patent Document 1).

Japanese Utility Model Publication No. 52-77202 (Figs. 4 and 5)

  However, in the frame structure of the table in Patent Document 1, a bolt insertion hole is formed in the coupling member and a female screw hole is formed in the female screw member in order to bolt the coupling member to the female screw member driven into the upper end of the leg. When the bolt tightening force is loosened even a little, the coupling member moves relative to the leg by the gap between the bolt and the bolt insertion hole, and a robust frame structure cannot be obtained. In addition, the female screw member, the through hole for the bolt formed in the leg, and the bolt insertion hole of the coupling member cannot be assembled unless the assembly workability is difficult. In addition, since the brazing material is only fitted in the fitting groove of the coupling member, the support strength of the coupling member to the brazing material is not sufficient, and the fitting portion is directly visible from the outside, so that it is preferable in terms of aesthetics I could not say it.

  The present invention has been made paying attention to such problems, has good assembly workability, has sufficient support strength for the connecting frame material of the top plate holder, and is robust and aesthetically pleasing. The purpose is to provide.

In order to solve the above problems, the table frame structure according to claim 1 of the present invention is a table frame structure in which a top plate is supported by a plurality of support legs and a connecting frame rod connecting the support legs. The top plate holder is supported on the support leg in a non-rotatable manner, and the top plate holder includes a fitting protrusion that is fitted to an end of the connection frame rod, and a right and left side of the fitting protrusion. A side wall that is in contact with or close to the opposite side surface of the connecting frame and connects the upper portions of the left and right side walls, and the upper surface projects upward from the left and right side walls, and the lower surface is the connecting frame. A connecting piece that abuts on or close to the upper surface of the bag, and the lower surface of the top plate contacts or approaches the upper surface of the left and right side walls, and the connecting piece fits on the lower surface of the top plate. That the notch was formed It is a symptom.
According to this feature, the connecting frame is fitted to the fitting protrusion of the top plate holder, and the left and right side surfaces and the upper surface are abutted or supported in close proximity by the side wall and the lower surface of the connecting piece. Not only is the position of the connecting frame rod easily determined relative to the receiver, but also the support strength of the top plate receiver for the connecting frame material is enhanced. Also, by projecting the upper surface of the connecting piece upward and fitting it into the notch on the lower surface of the top plate, the position of the top plate receiver relative to the top plate can be easily determined, and the support leg, top plate receiver and top plate The three members can be assembled firmly and at the same time the workability at the time of assembly is good. Furthermore, since a connection location with the top plate holder of the connection frame can be hidden by the side wall, a preferable frame structure can be provided from the viewpoint of aesthetics.

The frame structure of the table according to claim 2 of the present invention is the frame structure of the table according to claim 1, wherein the left-right width of the notch is substantially the same as the left-right width of the connecting piece. It is characterized by.
According to this feature, since the connecting piece does not shake from side to side, the position of the top plate holder is more easily determined.

A table frame structure according to a third aspect of the present invention is the table frame structure according to the first or second aspect, wherein a fitting projecting shaft projecting downward from the top plate support is provided on the support leg. It fits into a fitting hole opened on the upper surface, and the upper part of the support leg is partially cut away downward to form a substantially vertical surface, and the substantially vertical surface is made substantially perpendicular to the back surface of the top plate holder. By making it contact with the back surface of the formed top plate holder, the top plate holder is supported by the support leg so as not to rotate.
According to this feature, since the support leg and the top plate holder are positioned by the fitting of the fitting protrusion and the contact between the substantially vertical surfaces, the top plate holder becomes difficult to move with respect to the support leg, Furthermore, it becomes easy to position the support legs and the top plate support with respect to the top plate.

The frame structure of the table according to claim 4 of the present invention is the frame structure of the table according to any one of claims 1 to 3, wherein the side surfaces of the left and right side walls are positioned below the connecting piece. A horizontal plate is extended from left to right outward, and the horizontal plate and the lower surface of the top plate are screwed together.
According to this feature, the top plate receiver is composed of a pair of left and right side walls and a pair of left and right horizontal plates, so that the top plate receiver itself is a robust structure having a high supporting force against external force. Can do.

A table frame structure according to a fifth aspect of the present invention is the table frame structure according to any one of the first to fourth aspects, wherein the left and right side walls are inclined upward. It is a feature.
According to this feature, since the side wall is inclined upward, it is possible to effectively shield the fitting protrusion when the connection frame rod is not required to support the narrow top plate. Moreover, since the visible area of the side wall from the outside is narrowed, the top plate holder is not conspicuous to the outside, and an excellent appearance can be obtained.

The frame structure of the table according to claim 6 of the present invention is the frame structure of the table according to any one of claims 1 to 5, wherein the connection frame rod is provided with a connection fitting locked to the connection frame rod. And the upper part of the coupling fitting is fitted into the notch.
According to this feature, the notch part formed for fitting the connecting piece can be used at the fitting position on the upper part of the connecting metal part, so a new notch part for positioning the connecting metal part is formed on the top plate. There is no need to do this, and by fixing the positioned connecting bracket to the top plate and the top plate holder, the connecting frame can be fixed without being displaced with respect to the support leg.

  Examples of the present invention will be described below.

  FIG. 1 is a perspective view showing an overall image of a table in the present embodiment, FIGS. 2 (a) and 2 (b) are perspective views showing a top plate holder and a connecting bracket, and FIG. 3 is a support leg. FIG. 4 is a perspective view showing a state before and after assembling the top plate holder, and FIG. 4 is an exploded view showing a support leg, a connecting frame rod and a connecting bracket attached to the corner of the top plate via the top plate holder. FIG. 5 is a cross-sectional view showing a state in which the support legs are fixed to the corners of the top plate by the top plate receiver and the connecting bracket, and FIG. It is a perspective view which shows the connection process of these. This table 1 is mainly used as a conference and business table for companies, schools, and the like. Hereinafter, in the description of the present embodiment, the support leg 4 side of the top plate 2 of the table 1 in FIG. 1 is set downward, the center of the top plate 2 of the table 1 is inward, and the four corners (corner portions 2a) of the top plate 2 are external. I will explain as one.

  As shown in FIG. 1, four corners 2 a on the lower surface 3 of the top plate 2 that is rectangular when viewed from above are four molded from a metal such as aluminum or a hard plastic material extending downward. Each support leg 4 is extended. On both sides of the lower surface 3, hollow metal connecting frame rods 6 formed of aluminum, steel or the like are provided along the lower surface 3 to connect the upper portions 5, 5 of the two support legs 4, 4 to each other. It has been. The bent ends 7 and 7 of the connection frame rod 6 are connected and fixed to the two support legs 4 and 4 and the top plate 2 by a connection fitting 9 and a top plate receiver 10 which will be described in detail later.

  Furthermore, both the connecting frame rods 6 and 6 are connected to two connecting reinforcing rods 8 and 8 extending in parallel with each other along the lower surface 3, and the frame connecting strength of the connecting frame rod 6 is increased. By supporting the four support legs 4 indirectly by the connecting frame rod 6 and the connecting reinforcement rod 8, the support strength is improved with respect to the load on the top plate 2 and the article placed on the top plate 2. I am trying.

  As shown in FIGS. 2 (a) and 2 (b), the top plate holder 10 and the connecting fitting 9 will be described. In addition, since each part of the some top plate holder 10, the connection metal fitting 9, the support leg 4, and the connection frame rod 6 used for the table 1 of a present Example is the same, in this example, the top plate 2 of the top plate 2 is used. Of the four corners 2a, the following description will be made with one other center and the other three omitted.

  The top plate holder 10 is formed of a metal material such as aluminum or aluminum alloy, and is fitted with a fitting projection 11 that fits the bent end portion 7 of the connecting frame rod 6 described above, and a side of the fitting projection 11. A pair of left and right side walls 12, 12 provided so as to cover the upper side, and a connecting piece 13 whose upper surface protrudes above the side walls 12, 12 so as to connect the upper portions of the pair of side walls 12, 12. A horizontal plate 14, 14 extending outward from the pair of side walls 12, 12, a support plate 17 having a generally rhombus shape in top view and connected in the same plane as the horizontal plates 14, 14; It is formed from a connecting head 10 a provided below the mating protrusion 11.

  The fitting protrusion 11 is formed with an inclined surface 11c inclined upward, and a fastening bolt hole 11a is formed in an upward oblique direction perpendicular to the inclined surface 11c. The support leg connecting plate 17 is provided with a fitting projecting shaft 16 projecting downward at a central position, and screw through holes 17a are bored at three positions around the shaft at equal intervals. A substantially vertical support leg abutment surface 15 is formed on the support leg connecting plate 17 side of the connection head 10a, and a support leg mounting through hole 15a is formed in a horizontal direction at a substantially central part of the connection head 10a. .

  Between the fitting protrusion 11 and the connecting piece 13, a through-opening 18 having a rectangular top view penetrating in the vertical direction is formed. Both horizontal plates 14 and 14 are respectively provided with top plate mounting bolt through holes 14a and 14a penetrating in two directions at predetermined intervals in the vertical direction. Both side walls 12, 12 are configured by surfaces inclined from the connecting head 10 a side toward the upper side of the connecting piece 13.

  The connecting fitting 9 is provided at the upper end with a bolt housing recess 9c that is recessed at the lower end from below to above, a locking peripheral edge 9b that protrudes outward so as to surround the periphery thereof. A fastening bolt through hole 9e is formed in the receiving inclined surface 9d on the locking claw 9a side of the bolt housing recess 9c in a direction perpendicular to the receiving inclined surface 9d. ing.

  As shown in FIG. 3, the upper part 5 on the top plate receiving side of the support leg 4 is formed with a vertical surface 5c in which a part of the inner upper end surface is cut downward in the vertical direction. The shape of the end surface is formed in a rhombus shape in a top view having substantially the same shape as the support leg connecting plate 17 of the top plate receiver 10 described above. The vertical surface 5c is provided with a screw hole 5d (see FIG. 5) oriented in the horizontal direction. On the upper end surface of the upper part 5, a fitting hole 5a is drilled downward at the center position, and screw holes 5b are drilled downward at equal intervals around the periphery.

  Next, the attachment of the support leg 4 and the top plate support 10 will be described. First, the top of the support leg 4 is fitted into the fitting hole 5a formed in the upper end surface of the support leg 4 while the fitting protrusion 16 protruding from the support leg connecting plate 17 is fitted. The support leg connecting plate 17 of the plate support 10 is placed on the upper end surface of the support leg 4. At this time, the dimensions are such that the vertical surface 5c of the support leg 4 and the support contact surface 15 come into contact with each other. As a result, the top plate holder 10 is temporarily fixed to the support leg 4. At this placement position, the screw through holes 17 a overlap the screw holes 5 b at the same position in the vertical direction, and the support legs support the screw holes 5 d. The mounting through holes 15a overlap at the same position in the horizontal direction.

  Accordingly, the three support leg mounting screws 22 are screwed in the respective screw holes 5b in the vertical direction through the respective screw through holes 17a, and the support leg mounting screws 23 are connected in the horizontal direction through the support leg mounting through holes 15a. The top plate support 10 is fixed to the upper portion 5 of the support leg 4 so as not to rotate by being screwed into the screw hole 5d. Thus, the support leg 4 and the top plate holder 10 are positioned by the fitting of the fitting protrusion 16 and the contact of the vertical surface 5c and the support leg contact surface 15 which are substantially vertical surfaces. The top plate holder 10 is difficult to move with respect to the support leg 4, and the mounting of the support leg 4 and the top plate receiver 10 with respect to the top plate 2 is easy to position.

  Next, based on FIGS. 4 to 6, the attachment of the support leg 4 provided with the top plate holder 10 to the top plate 2 and the connection between the top plate holder 10 and the connection frame rod 6 using the connection fitting 9. This will be described below.

  As shown in FIG. 4, the support leg connecting plate 17 and the horizontal plate 14 of the top plate receiver 10 connected to the upper portion 5 of the support leg 4 are placed on the corner 2 a of the top plate 2, and the connecting piece 13 is placed on the bottom surface. 3 is fitted to the inner side of the notch 3a. The left and right widths of the notch 3a and the left and right widths of the connecting piece 13 are formed substantially the same, and the connecting piece 13 does not sway from side to side with respect to the notch 3a. Is easy to determine.

  And the front-end | tip of the edge part 7 bent to the fitting protrusion 11 is fitted, making the both-sides surface 7a, 7a of the bent edge part 7 of the connection flame | frame 6 contact | abuts or adjoins the both-side walls 12 and 12. At the fitting position of the connecting frame rod 6, the small rectangular through hole 7 c formed on the upper surface 7 b of the connecting frame rod 6 communicates with the through opening 18 between the connecting piece 13 and the fitting projection 11 and is cut. It also communicates with the notch 3a.

  Next, the locking claw 9a of the connecting fitting 9 is inserted into the large rectangular through hole 7e and the small rectangular through hole 7c, and is fitted into the notch 3a. At the time of fitting, the engaging peripheral end edge 9b of the connecting metal fitting 9 is locked by the lower surface 7d of the connecting frame rod 6 that forms the outer surface of the large rectangular through hole 7e, and movement in the front-rear and left-right directions is restricted. Therefore, the fastening bolt 19 is inserted into the fastening bolt through hole 9e while being inserted from the bolt housing recess 9c, and is screwed into the fastening bolt hole 11a of the fitting projection 11.

  As shown in FIG. 5, when the fastening bolt 19 continues to be screwed into the fastening bolt hole 11a, the locking claw 9a is inserted into the notch 3a through the small rectangular through hole 7c, and the top The plate holder 11 and the connecting frame 6 are firmly fastened by the connecting fitting 9. At this time, the upper surface 7b of the connecting frame rod 6 is in contact with or close to the lower surface of the connecting piece 13, and the movement of the connecting frame rod 6 is restricted by the synergistic action with the left and right side walls 12 of the top plate holder 10.

  Further, by fastening by fastening the fastening bolt 19, the connecting piece 13 which is in contact with and fitted to the inner side of the notch 3a of the top plate 2 and the outer side of the notch 3a are engaged. The connecting claw 13 and the locking claw 9a are immovably accommodated in the cutout portion 3a.

  In this way, the notch 3a formed for fitting the connecting piece 13 can be used for fitting the locking claw 9a of the connecting metal 9, so that the connecting metal 9 can be newly positioned. It is not necessary to form the notch 3a on the top plate 2, and the connecting frame 9 is fixed to the top plate 2 and the top plate holder 10 so that the connection frame rod 6 is displaced from the support leg 4. It is fixed without.

  From the above description, the connecting frame rod is fitted to the fitting protrusion of the top plate holder, and the left and right side surfaces and the upper surface are abutted or supported in close proximity by the side wall and the lower surface of the connecting piece. Not only is the position of the connecting frame rod easily determined relative to the tool, but also the support strength of the top plate support for the connecting frame material is enhanced. Also, by projecting the upper surface of the connecting piece upward and fitting it into the notch on the lower surface of the top plate, the position of the top plate receiver relative to the top plate can be easily determined, and the support leg, top plate receiver and top plate The three members can be assembled firmly and at the same time the workability at the time of assembly is good.

  Moreover, since the fastening bolt through hole 9e and the fastening bolt hole 11a are formed perpendicular to the bolt receiving inclined surface 9d and the inclined surface 11c, the head of the fastening bolt 19 is formed on the bolt receiving inclined surface 9d. It can be made to press reliably.

  Since the connecting piece 13 and the locking claw 9a are accommodated in a notch 3a recessed in the lower surface 3 of the top plate 2, the upper surface 7b of the connecting frame rod and the upper surface of the top plate holder 10 are The top plate 2 is brought into contact with the lower surface 3 of the top plate 2 in a flush manner so that the top plate 2 can be stably supported. In addition, the support leg mounting screws 22 and 23 respectively connected to the upper part 5 of the support leg 4 through the screw through hole 17a and the support leg mounting through hole 15a of the top board receiver 10 are shown in FIG. And it is shielded from the outside by the connecting head 10a of the top plate holder 10 and looks good.

  Then, as shown in FIG. 6, the four top plate mounting bolts 21 are screwed into the bolt holes 3 b formed at the corresponding positions through the top plate mounting bolt through holes 14 a of the horizontal plate 14. Thus, the horizontal plate 14 is screwed and connected to the lower surface 3, and the mounting of the top plate 2 and the support leg 4 is completed.

  Thus, since the top plate receiver 10 is composed of the pair of left and right side walls 12 and 12 and the pair of left and right horizontal plates 14 and 14, the top plate receiver 10 itself is robust and has high support force against external force. It is a simple structure. In addition, the connection portion between the top plate receiving tool 10 and the bent end portion 7 of the connection frame ridge 6 is shielded from the outside by the side walls 12 and 12, so that a preferable frame structure is provided from the viewpoint of aesthetics. The

  The fitting protrusions 11 can be effectively shielded when the connecting frame rod 6 is not required to support the narrow top plate by the inclined surfaces of the side walls 12. Moreover, since the visual recognition area of the side wall 12 from the outside becomes narrow, the top plate receiver 10 is not conspicuous from the outside, and an excellent appearance is obtained. Further, the head of the fastening bolt 19 can also be shielded from the outside by the bolt housing recess 9 c that opens downward to the connecting metal 9.

  As described above, the table 1 in the embodiment uses the top plate holder 10 to improve the assembly workability of the support leg 4, the top plate 2, and the connecting frame rod 6. The table is provided with a frame structure that is sufficiently strong and has a strong support strength with respect to the connecting frame rod 6 and that has an excellent aesthetics.

  Next, a modification of the present embodiment will be described with reference to FIG. FIG. 7 is a perspective view of the frame structure of the table. In the following modifications, the same structural parts as those of the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

  The shape of the connecting frame rod of the present invention is not limited to the above-described embodiment. As shown in FIG. 7, the lower surface 3 of the top plate 2 of the table 25 shown in FIG. This is a table of the type that does not use the connection reinforcing rod 8 (see FIG. 1) of the table 1 shown in the above-described embodiment.

  Even with such a cross-type connecting frame rod 26, the support leg 4, the top plate receiving device 10, and the connecting frame rod 26 are firmly attached to the top plate 2 by using the top plate holder 10 and the connecting bracket 9 described above. At the same time, the workability at the time of assembly is also good. Furthermore, since the connection part of the edge part 26 of the connection frame rod 26 and the top-plate holder 10 can be concealed by the side wall 12, a preferable frame structure is provided from the viewpoint of aesthetics.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. For example, in the above-described embodiment, the connecting frame rod 6 is easily and more firmly fitted to the fitting protrusion 11 of the top plate holder 10 with the fastening bolt 19 via the connecting fitting 9. Although it is preferable from the above, the present invention is not limited to this. For example, a configuration in which the connecting frame rod 6 is fitted to the fitting protrusion 11 without using the connecting fitting 9 may be used.

  Moreover, in the said Example, since the vertical surface 5c and the support leg contact surface 15 which are surfaces substantially perpendicular to the support leg 4 and the top-plate holder 10 were formed, and the surfaces 5c and 15 were contacted, the ceiling 5 Although the board holder 10 becomes difficult to move with respect to the support leg 4 and is easy to attach to the top board 2, the present invention is not limited to this, and the support leg 4 and the top board holder 10 are in contact with each other. Instead of forming a vertical surface, one of the side surfaces may be in contact with the support leg contact surface 15 using a conventionally known prismatic support.

It is a perspective view which shows the whole image of the table in the Example of this invention. (A) And (b) is a perspective view which shows a top-plate holder and a connection metal fitting. It is a perspective view which shows the state before attaching a top-plate holder to a support leg, and after an assembly. It is a disassembled perspective view which shows the support leg attached to the corner | angular part of a top plate via a top plate holder, a connection frame rod, and a connection metal fitting. It is sectional drawing which shows the state by which the supporting leg was fixed to the corner | angular part of the top plate by the top plate holder and the connection metal fitting. It is a perspective view which shows the connection process of a top-plate holder and a top plate. It is a perspective view of the frame structure of the table which shows the modification of a present Example.

Explanation of symbols

1 Table (Example)
2 Top plate 2a Corner portion 3 Lower surface 3a Notch portion 3b Bolt hole 4 Support leg 5 Upper portion 5a Fitting hole 5b Screw hole 5c Vertical surface 5d Screw hole 6 Connection frame 杆 7 Bent end 7a Side surface 7b Upper surface 7c Small rectangular through hole 7d Lower surface 7e Large rectangular through hole 8 Reinforcing reinforcement rod 9 Connecting bracket 9a Locking claw 9b Locking peripheral edge 9c Bolt receiving recess 9d Bolt receiving inclined surface 9e Fastening bolt through hole 10 Top plate holder 10a Connecting head 11 Fitting Projection 11a Fastening bolt hole 11c Inclined surface 12 Side wall 13 Connecting piece 14 Horizontal plate 14a Top plate mounting bolt through hole 15 Supporting leg contact surface 15a Supporting leg mounting through hole 16 Fitting projecting shaft 17 Supporting leg connecting plate 17a Screw through hole 18 Through Opening 19 Fastening bolt 20 Connecting bolt 21 Top plate mounting bolts 22, 23 Supporting leg mounting screw 25 Table (Modification)
26 Cross-type connecting frame

Claims (6)

In the table frame structure in which the top plate is supported by a plurality of support legs and a connecting frame rod connecting the support legs,
A top plate holder is supported on the support leg in a non-rotatable manner, and the top plate holder covers a fitting protrusion that fits into an end of the connection frame rod, and a left and right side of the fitting protrusion. A side wall that is in contact with or close to the opposite side surface of the connecting frame と and the upper portions of the left and right side walls are connected to each other, and the upper surface protrudes above the left and right side walls, and the lower surface is the connecting frame 前 記. A connecting piece that comes into contact with or close to the upper surface of the top plate, and the lower surface of the top plate contacts or comes close to the upper surface of the left and right side walls, and the connecting piece fits into the lower surface of the top plate. A frame structure of a table, characterized in that a notch is formed.   The frame structure of the table according to claim 1, wherein the left-right width of the notch is substantially the same as the left-right width of the connecting piece.   The fitting protrusion projecting downward from the top plate holder is fitted into a fitting hole opened on the upper surface of the support leg, and the upper part of the support leg is partially cut away downward to form a substantially vertical surface. The substantially vertical surface is brought into contact with the back surface of the top plate holder that is formed so that the back surface of the top plate receiver is substantially vertical, thereby supporting the top plate holder in a non-rotatable manner on the support leg. The frame structure of the table according to claim 1 or 2.   The horizontal plate is extended from the side surface of the left and right side walls toward the left and right outward at a position below the connecting piece, and the horizontal plate and the lower surface of the top plate are screwed together. The frame structure of the table.   The table frame structure according to claim 1, wherein the left and right side walls are inclined upward.   6. The connecting frame according to claim 1, wherein the connecting frame is screwed to the fitting projection through a connecting metal latched to the connecting frame, and the upper part of the connecting metal is engaged with the notch. A table frame structure according to any one of the above.

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