JP2021101890A - table - Google Patents

Abstract

To provide a table having a configuration in which a beam fixture can be firmly attached to both sides of a stay in a state capable of being attached to or detached from the sides.SOLUTION: The present invention adopts a configuration as follows. A table includes a stay 6 arranged on a lower surface side of a top plate, and a pair of beams 3 coupled to both sides of a beam coupling position in the stay via beam coupling fixtures 7A and 7B. One beam coupling fixture 7A has a screw insertion hole 71, and the other beam coupling fixture 7B has a female screw hole 72. A bolt 8 inserted from the screw insertion hole of the one beam coupling fixture 7A is allowed to pass through the stay 6 to be screwed and attached to the female screw hole of the other beam coupling fixture 7B, so that the beam coupling fixtures are fixed to the stay.SELECTED DRAWING: Figure 9

Description

The present invention relates to a table preferably used in an office or the like.

Conventionally, various tables of this type equipped with a long top plate that can be used by a large number of people have been developed. Many such tables are provided with intermediate legs to support a long top plate (see, for example, Non-Patent Document 1).

As such a long table, for example, there is a type in which a top plate is supported by a plurality of stays supported by legs and a beam connecting these stays. In many of these types of tables, beam connectors are fixed to both sides of the stay supported by the intermediate legs by welding, etc., and the beam is screwed to these beam connectors and attached to the stay. ..

By the way, recently, there has been a request to be able to change the mounting location of the beam to the stay according to the specifications of the table, and it is being studied to be able to change the position of the beam mounting tool. However, there is a problem that it is difficult to firmly attach the beam attachment to both sides of a relatively thin stay in a detachable state.

It should be noted that such a problem exists in all cases in which beam connecting members are detachably provided on both sides of the stay, and it is not limited to those in which beam connecting members are selectively attached to a plurality of stays. Absent.

"SAIBI", KOKUYO General Catalog 2019 Furniture Edition, KOKUYO Co., Ltd., December 2018, pp. 360-361

An object of the present invention is to realize a table having a structure in which beam attachments can be firmly attached to both sides of a stay in a detachable state.

The table according to the invention according to claim 1 is a table including a stay arranged on the lower surface side of the top plate and a pair of beams connected via a beam connecting tool on both sides of a beam connecting portion of the stay. One beam connector has a screw insertion hole, and the other beam connector has a female screw hole, and a bolt inserted from the screw insertion hole of one beam connector is inserted. Both beam connecting tools are fixed to the stay by penetrating the stay and screwing it into the female screw hole of the other beam connecting tool.

The table according to the invention according to claim 2 is the one according to claim 1, wherein the stay includes a plurality of beam connection points, and a beam connection paired with any of the beam connection points. The ingredients are selectively fixed.

The table according to the invention according to claim 3 is the one according to claim 1 or 2, wherein each beam connecting portion of the stay has a hooking portion for hooking both beam connecting tools and the hooking portion. Through holes through which the bolts pass are provided.

The table according to the invention according to claim 4 is the one according to claim 1, 2 or 3, wherein the beam connecting tool has a hooking projection at one end, and the hooking portion of the stay is provided. It is a recess for engaging the hooking protrusion. In the invention of claim 4, the "recess" is a concept including a hole formed in the stay and to which the hooking projection can be engaged.

According to the present invention, it is possible to realize a table having a configuration in which the beam attachments can be firmly attached to both sides of the stay in a detachable state.

A perspective view from above showing a table according to an embodiment of the present invention. A perspective view from below showing a table according to the same embodiment. The plan view which shows the table which concerns on the same embodiment. The front view which shows the table which concerns on the same embodiment. The bottom view which shows the table which concerns on the same embodiment. The perspective view which shows the state which the top plate of the table which concerns on the same embodiment is removed. FIG. 6 is an enlarged view of part A in FIG. FIG. 6 is an enlarged view of part B in FIG. FIG. 6 is a cross-sectional view taken along the line XX in FIG. The perspective view from above which shows the intermediate leg unit which concerns on the same embodiment. The exploded perspective view which shows the intermediate leg unit which concerns on the same embodiment. The perspective view from the bottom which shows the connection mode of the beam to the stay which concerns on the same embodiment. The perspective view from above which shows the connection mode of the beam to the stay which concerns on the same embodiment. The enlarged perspective view which shows the connection part of the beam to the stay which concerns on the same embodiment. The figure which shows one beam connector which concerns on the same embodiment. The figure which shows the nut holding hole which concerns on the same embodiment. The figure which shows the example of the stay which can construct the table which concerns on the same embodiment. The figure which shows the example of the leg support which can construct the table which concerns on the same embodiment. A perspective view from above showing an intermediate leg unit according to another embodiment of the present invention. The figure which shows the example of the end leg which concerns on other embodiment of this invention. The figure which shows the example of the end leg which concerns on other embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 18.

The present embodiment is a case where the present invention is applied to a conference table. As shown in FIGS. 1 to 5, the table T has a top plate 1 supported by an intermediate leg unit 2 and end legs 4 connected to the intermediate leg unit 2 via a beam 3. ..

The top plate 1 has a rectangular shape in a plan view in which one end is supported by the intermediate leg unit 2 and the other end is supported by the end leg 4, and a nut (not shown) for mounting is embedded in the lower surface. In this embodiment, paired top plates 1 arranged facing each other via a gap SS for wiring insertion are arranged on both sides of the intermediate leg unit 2.

That is, as shown in FIGS. 2, 4 and 5, the table T is attached to the leg support 5 having the stay mounting portion 50 and the stay mounting portion 50 of the leg support 5 having a plurality of beam connecting points 6x. An intermediate leg unit 2 including a stay 6 and beam connecting members 7A and 7B selectively attached to any of the beam connecting points 6x of the stay 6 is provided, and the top plate 1 is provided by the intermediate leg unit 2. It supports a part of. The leg struts 5 are specific ones selected from at least two types, and in the present embodiment, six types of leg struts 5A to 5F as shown in FIG. 18, and these leg struts 5A to 5F each have a stay 6. It is provided with a stay mounting portion 50 that can be mounted, and has different wiring capacities, designs, or height dimensions. Specifically, in the case of this embodiment, the leg support 5B (hereinafter referred to as the leg support 5) shown in FIG. 18B is selected and used.

More specifically, as shown in FIGS. 6, 10 and 11, the intermediate leg unit 2 fits into the leg support 5 having a gutter-shaped stay mounting portion 50 at the upper end and the stay mounting portion 50 from above. It is provided with a prismatic pipe-shaped stay 6 to be formed, and paired beam connecting tools 7A and 7B selectively attached to any of the beam connecting points 6x of the stay 6.

As shown in FIGS. 6, 10, 11 and 18, the leg support 5 has a support body 51 having an adjuster 53 at the lower end and a wiring storage space opened to one side inside, and the support body 51. A cover 52 for closing the opening of the column and a stay mounting portion 50 provided above the support column body 51 are provided. The support column body 51 is a hollow body having a wiring storage space SC inside, and also has a role of guiding wirings guided from the floor to the top plate 1. That is, the wiring in the wiring storage space SC is guided onto the top plate 1 from the upper lead-out inlet 52a formed near the upper edge of the cover 52, and is wired by removing the cover 52 from the support column main body 51. The storage space SC is configured to be temporarily open to the outside. Further, a lower lead-out inlet 51a for communicating the wiring storage space SC and the outside is provided at the lower end of the support column main body 51. As described above, the stay mounting portion 50 has a gutter shape, and a flange 501 for screwing to the top plate 1 is provided on the upper edge. Any one of the five types of stays 6A to 6E as shown in FIG. 17 can be mounted on the stay mounting portion 50. In other words, all of these stays 6A to 6E are set in a dimensional shape so that they can be mounted on the stay mounting portion 50. In the case of this embodiment, the stay 6E (hereinafter referred to as the stay 6) shown in FIG. 17 (e) is selected and mounted on the stay mounting portion 50.

As shown in FIGS. 8, 9 and 12, the stay 6 has an upward channel-shaped lower channel material 61 and a downward channel-shaped upper channel material 62 fitted outside the lower channel material 61. The side wall 6a has a double wall structure. As shown in FIGS. 8, 10 and 11, the stay 6 is provided with a plurality of beam connecting points 6x on both sides of the center in the longitudinal direction, specifically four beam connecting points 6x. The beam couplers 7A and 7B paired with any of the locations 6x are selectively fixed. At each beam connecting point 6x, upper and lower recesses 6x1 and 6x2 forming a slit shape, which are hooking portions for hooking both beam connecting tools 7A and 7B, and both beam connecting tools 7A and 7B are attached to the stay 6. A through hole 6x3 through which a bolt 8 for fixing the bolt 8 penetrates is provided. That is, on one side wall 6a at each beam connecting portion 6x, a pair of upper recesses 6x1 and a pair of lower recesses 6x2 are formed so as to sandwich the through holes 6x3, and these upper and lower recesses 6x1 and 6x2 are formed. One of the beam couplers 7A can be attached by using it. Further, on the other side wall 6a, a pair of upper recesses 6x1 and a pair of lower recesses 6x2 are formed so as to sandwich a through hole 6x3, and the other beam is formed by utilizing the upper and lower recesses 6x1 and 6x2. The connector 7B can be attached.

Here, as shown in FIGS. 9 and 12, one beam connector 7A has a screw insertion hole 71 for inserting the bolt 8, and the other beam connector 7B has a female screw hole 72. The bolt 8 inserted from the screw insertion hole 71 of one beam connector 7A is threaded through the stay 6 and screwed into the female screw hole 72 of the other beam connector 7B, whereby both beam couplers are connected. 7A and 7B are fixed to the stay 6, respectively.

More specifically, the beam connector 7A is a hollow body 73 having hooking protrusions 761 and 762 at one end, as shown in FIGS. 9 and 12 to 15. A positioning member 74, which is partially extended to the other end side of the connector body 73 and fixed in the connector body 73, and a nut 75 arranged in the connector body 73 are provided. It is a thing. Note that FIG. 15 shows one beam connector 7A, and the nut 75 is omitted. Specifically, the connecting tool main body 73 is a sheet metal integrated body including a top wall 731, a side wall 732 hanging from both side edges of the top wall 731, and an end wall 733 hanging from one end of the top wall 731. It is a product, and upper and lower hooking projections 761 and 762 forming a claw shape that bend downward are integrally formed at one end of the side wall 732. Further, the end wall 733 is provided with the screw insertion hole 71 described above. A nut holding hole 77, which will be described later, is formed on both side walls 732, and the nut 75 is held in the connector main body 73 by using these nut holding holes 77.

To elaborate on the holding structure of the nut 75, nut holding holes 77 are provided in the opposite wall portions of the connecting tool main body 73, which is a hollow body, that is, both side walls 732, and nuts are arranged in the connecting tool main body 73. Both ends of the 75 are held in the nut holding holes 77, respectively.

The nut 75 has a prismatic shape having two planes 75a and 75b facing each other, and has a screw hole 75x orthogonal to the two planes 75a and 75b at a portion located in the connector main body 73.

As shown in FIGS. 13 to 16, the nut holding hole 77 has a square hole portion 77a that is fitted to the outer periphery of the end portion of the nut 75 to prevent the nut 75 from rotating, and a part of the square hole portion 77a is recessed. It is provided with a recessed portion 77b that forms gaps S1 and S2 between the nut 75 and the outer periphery of the end portion. Note that FIG. 15 shows one beam connector 7A in which the nut 75 is omitted as described above. FIG. 15A is a plan view, FIG. 15B is a front view, and FIG. 15C is a front view. A side view, the same figure (d) is a bottom view, and the same figure (e) is a cross-sectional view of the central side in (a). Further, FIG. 16A shows an enlarged view of only the nut holding hole 77 in FIG. 15C, and FIG. 16B shows the nut 75 in the square hole portion 77a of the nut holding hole 77. It is an enlarged view of the held state.

Further, as shown in FIGS. 10 and 12 to 14, the connector main body 73 is provided with a lid member 78 that also prevents the nut 75 from being pulled out and conceals the end portion. As shown in FIGS. 12 and 13, the lid member 78 includes a lid body 781 that is attached to the outer surface of the connector body 73 while covering the end surface of the nut 75 and the nut holding hole 77, and the lid body 781. It is provided with a positioning protrusion 782 and a retaining protrusion 783, which are fastening portions that are fastened to the connector main body 73 by using the nut holding hole 77. The lid member 78 is attached to the connector main body 73 by utilizing the gaps S1 and S2 as shown in FIG. 16B formed between the recessed portion 77b of the nut holding hole 77 and the nut 75. Both the positioning protrusion 782 and the retaining protrusion 783 project from the inner surface of the lid main body 781. The positioning protrusion 782 has a function of being inserted into the gap S1 to suppress the movement of the nut 75 with respect to the connector main body 73. The retaining protrusion 783 has a function of being inserted into the gap S2 to prevent the lid main body 734 from separating from the connector main body 73. More specifically, the positioning protrusion 782 has a flat plate shape and is closely inserted into the gap S1. The retaining protrusion 783 has an elastically deformable U-shape whose base end is supported by the lid body 781, and has a claw 784 at its tip that engages with the inner surface side opening end surface of the nut holding hole 77. There is. The lid member 78 is arranged at both ends of the nut 75, and is integrally molded of, for example, a synthetic resin.

The other beam connector 7B has a configuration similar to that of the one beam connector 7A, but a fixing nut 70 having a female screw hole 72 is fixed to the inner surface of the end wall 733. In addition, in FIGS. 11 and 12, the fixing nut 70 is drawn at a position different from the original fixing position to clarify the existence of the fixing nut 70. Further, the same reference numerals are given to the respective parts corresponding to those in the one beam connector 7A, and the description thereof will be omitted.

The inner end portion of the beam 3 is connected to each of the beam connecting tools 7A and 7B described above. That is, each beam 3 has a prismatic pipe shape whose outer surface is set so as to be continuous with the connecting tool main body 73 of the beam connecting tools 7A and 7B, and is outside the positioning member 74 of the beam connecting tools 7A and 7B. It is in contact with the end face of the connector main body 73 in the fitted state. Then, the beam 3 is connected to the beam connecting tools 7A and 7B by using diagonal connecting bolts 9. The beam 3 and the beam connecting members 7A and 7B are connected after the stay 6 using the bolt 8 and the beam connecting members 7A and 7B are connected. Reference numeral 3x is a window provided on the lower surface of the beam 3 for passing the diagonal connecting bolt 9 from below.

More specifically, near the inner end of the beam 3, a bolt receiver 31 having a screw insertion hole 31x corresponding to the nuts 75 provided on the beam connectors 7A and 7B is provided, and the bolt receiver 31 is provided. The beam 3 is connected to the beam connecting tools 7A and 7B by screwing the diagonal connecting bolt 9 inserted into the screw insertion hole 31x of the tool 31 into the screw hole 75x of the nut 75. Specifically, the axis of the screw hole 75x of the nut 75 is inclined so as to gradually descend outward, and the axis of the screw insertion hole 31x of the bolt receiver 31 is the axis of the screw hole 75x. It is matched with. The bolt receiver 31 is a prismatic one similar to the nut 75, and both ends thereof are held in the receiver holding holes 32 provided in the beam 3. As shown in FIG. 13, the receiver holding hole 32 has a shape similar to the bolt holding hole 77, and is fitted to the outer periphery of the end portion of the bolt receiver 31 to prevent the bolt receiver 31 from rotating. A recessed portion 32a provided with a square hole portion 32a and a recessed portion 32b that recesses a part of the square hole portion 32a to form a gap according to the above-mentioned gaps S1 and S2 between the outer periphery of the end portion of the bolt receiver 31. Is. A lid member 33 that prevents the bolt receiver 31 from being pulled out and conceals the end portion is mounted on the receiver holding hole 32. As shown in FIGS. 12 and 13, the lid member 33 has a lid body 331 attached to the outer surface of the beam 3 while covering the end surface of the bolt receiver 31 and the receiver holding hole 32, and the lid body 331. It is provided with a positioning protrusion 332 and a retaining protrusion 333, which are fastening portions that are fastened to the beam 3 by using the receiver holding hole 32. The lid member 33 is attached to the beam 3 by utilizing the gaps S1 and S2 described above, which are formed between the lid member 33 and the bolt receiver 31 by the recessed portion 32b of the receiver holding hole 32. Both the positioning protrusion 332 and the retaining protrusion 333 project from the inner surface of the lid main body 781. The positioning protrusion 332 has a function of being inserted into a gap according to the gap S1 and suppressing the movement of the bolt receiver 31 with respect to the beam 3. The retaining protrusion 333 has a function of being inserted into a gap according to the gap S2 to prevent the bolt receiver 31 from separating from the beam 3, and is provided at the tip end portion of the inner surface side opening end surface of the receiver holding hole 32. It includes an engaging claw 334.

Further, the beam 3 is provided with a screw insertion hole 3a for screwing to the top plate 1, and a spacer 34 for preventing crushing is housed in a portion corresponding to the screw insertion hole 3a. The outer end of the beam 3 is connected to the end leg 4 via the end beam connector 7C.

The end leg 4 has a gate shape in which the upper ends of the end leg columns 42 are connected to both ends of the end stay 41, and is intermediate between the end stays 41 as shown in FIGS. 2, 5 and 6. Beam connecting members 7C for ends are provided at two locations. The beam connecting tool 7C for the end portion has a configuration according to the beam connecting tools 7A and 7B described above, and the corresponding parts are designated by the same reference numerals and the description thereof will be omitted. The difference between the beam connector 7C for the end and the beam connectors 7A and 7B is that the beam connector 7C is fixed to the end stay 41 by welding or the like and the shape of the side wall 732 is different. be able to. The connection mode between the beam 3 and the end leg 4 via the end beam connecting tool 7C is as shown in FIG. 7 using an oblique connecting bolt 9 according to the connection mode between the stay 6 and the beam 3 described above. Since it is a stubborn thing, detailed explanation will be omitted. Reference numeral 43 denotes a top plate receiving bracket for attaching the end leg 4 to the top plate 1 so that the end portion of the top plate 1 is supported by the end leg 4.

In the case of such a configuration, since the beam connecting members 7A and 7B paired on both sides of the stay 6 are fastened together with the common bolt 8 and fixed, each beam connecting member is individually attached to the stay. Compared to the case, the number of parts is reduced, the structure can be simplified, and the assembly man-hours can be reduced reasonably. Moreover, in such a structure, the stay 6 is sandwiched from both sides by both beam connecting members 7A and 7B by using the tightening force of the bolt 8, so that, for example, each beam connecting member is individually attached to the side wall of the stay. The mounting strength of the beam connectors 7A and 7B can be increased as compared with the case. In other words, if the stay 6 is sandwiched between the two beam connectors 7A and 7B, the phenomenon that tensile stress and bending stress act on the stay 6 due to the attachment of the beam connectors 7A and 7B can be eliminated. This makes it possible to reduce the weight of the stay 6.

Further, in this embodiment, the stay 6 is provided with a plurality of beam connecting points 6x, and the beam connecting tools 7A and 7B paired with any of the beam connecting points 6x are selectively fixed. Therefore, a table having different specifications can be configured by using the common stay 6 and the beam connectors 7A and 7B.

Further, in this embodiment, recesses 6x1 and 6x2, which are hooking portions for hooking both beam connecting tools 7A and 7B, and through holes 6x3 through which the bolt 8 penetrates are provided at the beam connecting points 6x of the stay 6. Are provided for each, so the assembly work can be performed smoothly. That is, the hooking projections 761 and 762 of the beam connecting members 7A and 7B are hooked on the recesses 6x1 and 6x2, and the beam connecting members 7A and 7B are temporarily held in the state of being positioned on the stay 6, and one side in that state. By simply screwing the bolt 8 inserted from the screw insertion hole 71 of the beam connector 7A into the female screw hole 72 of the other beam connector 7B through the through hole 6x3 of the stay 6, both beam connectors 7A and 7B with respect to the stay 6 Installation is complete.

Then, by preparing a plurality of types of leg columns 5A to 5F having different wiring capacities, designs, or height dimensions as shown in FIG. 18, it is possible to easily form an intermediate leg unit that meets various requirements. it can. In addition, if a plurality of types of beams 6A to 6E as shown in FIG. 17 are prepared, it is possible to more flexibly meet various demands. As an example, by combining the leg support 5A shown in FIG. 18A and the stay 6D shown in FIG. 17D, the intermediate leg unit 2X having a configuration different from that of the intermediate leg unit 2 described above can be formed. , 30 types of intermediate leg units can be formed only by combining the leg columns 5A to 5F shown in FIG. 18 and the stays 6A to 6E shown in FIG. When forming these intermediate leg units, since the beam connecting portions 6x of the stays 6A to 6E all have the same configuration, the common beam connecting tools 7A and 7B are firmly attached in the above-described manner. be able to.

The present invention is not limited to the embodiments described above.

For example, the present invention can be applied to a mode in which a pair of beam couplers are attached to one place of a stay from both sides. Further, the number and positions of the beam connecting points provided on the stay are not limited to those according to the above-described embodiment and may be arbitrarily set.

The configuration of the beam connector is not limited to the one described above, and may be, for example, one in which the end portion of the beam is externally fitted and screwed.

The mode of hooking the beam connector to the stay is not limited to that according to the above-described embodiment, and various modes may be adopted. That is, any mode of positioning of the beam connector with respect to the stay, such as providing a hook recess at one end of the beam connector and providing a protrusion that can engage with the hook recess as a hook at the beam connecting portion of the stay, is arbitrary. You may adopt the thing. Further, even if the hooking portion is a recess provided in the stay, the recess is a hole penetrating the side wall of the stay as long as the hooking projection of the beam connector can be engaged. However, it may be a recess provided on the side wall of the stay and to which the hooking projection of the beam connector can be engaged.

As the leg struts and stays, those other than those shown in FIGS. 17 and 18 may be prepared as standard products, and a specific leg struts and stays may be selected and adopted from them, of course.

The configuration of the end legs is not limited to that of the above-described embodiment, and for example, end legs 4X, 4Y and the like as shown in FIGS. 20 and 21 may be adopted. The end leg 4X shown in FIG. 20 is provided for the stay 41 by providing a connecting block 43 in which the connecting tool 43a for the stay 41 and the connecting tool 43b for the beam 3 are integrated at the upper end of the end leg support column 42. The stay 41 is fitted to the connecting tool 43a of the above and screwed, and the beam 3 is fitted to the connecting tool 43b for the beam 3 and screwed. The end leg 4Y shown in FIG. 21 is formed by directly connecting the beam 3 to the upper end of the end leg support 42 via the end beam connector 7C. In this case, the beams 3 are rigidly connected to each other by the stay 41Y.

The present invention may be applied not only to a table for a conference but also to a table used for other purposes. In each intermediate leg unit of a table having a plurality of intermediate leg units, the present invention is applied to a structure for attaching a beam connector to a stay. The invention may be applied. On the other hand, the present invention may be applied to a table having no end legs, that is, a table in which the top plate is supported only by the intermediate leg unit and the beam.

The stay is not limited to a prismatic pipe shape, and may have any shape such as a semi-cylindrical shape. In addition, the beam is not limited to a prismatic pipe shape, and an arbitrary shape may be adopted.

In addition, various modifications may be made as long as the gist of the present invention is not impaired.

T ... Table 1 ... Top plate 3 ... Beam 6 ... Stay 6x ... Beam connection point 6x1, 6x2 ... Recessed place (hanging part)
6x3 ... Through hole 7A ... One beam connector 71 ... Screw insertion hole 7B ... The other beam connector 72 ... Female screw hole 761, 762 ... Hanging protrusion 8 ... Bolt

Claims (4)

It is a table provided with a stay arranged on the lower surface side of the top plate and a pair of beams connected via a beam connecting tool on both sides of the beam connecting portion in this stay.
One beam connector has a screw insertion hole, and the other beam connector has a female screw hole.
A table in which both beam couplers are fixed to the stay by penetrating a bolt inserted through a screw insertion hole of one beam connector and screwing it into a female screw hole of the other beam connector. The table according to claim 1, wherein the stay includes a plurality of beam connecting points, and a pair of beam connecting tools is selectively fixed to any of the beam connecting points. The table according to claim 1 or 2, wherein each beam connecting portion of the stay is provided with a hooking portion for hooking both beam connecting tools and a through hole through which the bolt penetrates. The table according to claim 3, wherein the beam connector has a hooking protrusion at one end, and the hooking portion of the stay is a recess for engaging the hooking protrusion.

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