JP4261160B2 - Table top frame support structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a top plate support frame structure such as a table or a desk having a top plate, a plurality of support columns, and a top plate support frame bridged between the support columns.
[0002]
[Prior art]
In the top plate support frame structure such as a table or desk that supports the top plate by bridging the top plate support frame between the support columns, conventionally, as a means of attaching the top support frame to the support columns, the top plate support from the support column side There is known one in which a bolt is inserted and attached to a frame (see Patent Document 1). However, since the thing of this patent document 1 is made to screw a volt | bolt directly from the outer side of a table support | pillar, a volt | bolt head is exposed and it is not preferable on an external appearance.
[0003]
Therefore, as a means of concealing the bolt head, a connection box with an upper surface opened is provided at the top of the column, and the top plate support frame is fixed to the connection box by inserting bolts from the opened upper surface side of the connection box, and then connected with the top plate. A device that hides the bolt by closing the opening of the box has also been developed (see Patent Document 2).
[0004]
[Patent Document 1]
A microfilm (No. 5-7, FIGS. 1 and 2) of No. 60-79177 (No. 61-194330).
[Patent Document 2]
Japanese Utility Model Publication No. 4-50825 (pages 1, 2 and 1)
[0005]
[Problems to be solved by the invention]
However, although the thing of the said patent document 2 can certainly hide a volt | bolt with a top plate, since a volt | bolt can be inserted only from the upper surface side of a connection box, it inserts and screws in the bolt diagonally. In addition, the female screw formed on the fastening bracket also has to be formed obliquely, and the alignment in the screwing operation of the bolt is troublesome. Moreover, since the upper surface of the junction box is an opening, the top plate cannot be supported in a wide area on the upper part of the support column.
[0006]
The present invention has been made in view of such a situation, and provides a top plate support frame structure such as a table that can conceal the fastening bolts of the top plate support frame from the outside and can easily screw the bolts. It is intended.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, a top plate support frame structure such as a table according to the present invention has a top plate, a plurality of support columns, and a top plate support frame such as a table having a top plate support frame bridged between the support columns. The top plate support frame includes a connection frame supported by a support column, and an intermediate frame having a female screw portion screwed to the connection frame, and the connection frame includes an upper surface that supports the top plate; A bottom surface that has at least a top plate outer surface and an intermediate frame connecting surface, and that has a whole surface open so that a male screw member can be inserted from the connecting frame side toward the female screw portion of the intermediate frame; It is characterized by being composed of side surfaces .
According to this feature, the male screw member can be hidden by the outer surface of the top plate of the connecting frame, and even if the upper surface of the connecting frame that supports the top plate is closed, the entire surface of the connecting frame is opened with the open lower surface. The male screw member can be easily inserted in the longitudinal direction of the intermediate frame by the inner side of the top plate.
[0008]
In table support frame structure such as a table of the present invention, the connecting frame is constituted by square-section tube member, wherein the intermediate frame is composed of rectangular tube body and fitted possible rectangular tube of the connecting frame, the female The screw portion is preferably formed on a screw seat fixed to the inner surface of the rectangular tube of the intermediate frame.
In this way, no backlash coupling is achieved since it is possible to draw the screw seat the coupling frame side.
[0009]
In the top plate support frame structure such as a table according to the present invention, it is preferable that the intermediate frame connection surface is provided with a protruding plate that can be fitted to the inner surface of the intermediate frame.
If it does in this way, the axial center of a connection frame and an intermediate frame can be made to correspond exactly because a protruding board fits in an intermediate frame inner surface.
[0010]
In the top plate support frame structure such as a table of the present invention, it is preferable that the connection frame is supported and fixed at an arbitrary angular position with respect to a top plate seat provided at the upper end of the support column.
If it does in this way, the attachment angle of a top-plate support frame can be changed according to a top-plate shape.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A is a plan view of a table in which a top plate support frame structure according to an embodiment of the present invention is adopted, and is a sectional view taken along line XX of FIG. 1B, and FIG. 2 is a partially enlarged plan view showing the main part of the top plate support frame structure, FIG. 3A is a plan view of the bracket, FIG. 2B is a side view of the bracket, and FIG. The top view of a support frame, (b) is AA sectional drawing of (a), (c) is B arrow view of (a), FIG. 5 is an exploded assembly perspective view of a top-plate support frame.
[0012]
Reference numeral 1 shown in FIG. 1 is a table. The table 1 includes a top plate 2 and four columns 4a, 4b, 4c, and 4d that support the table 2, and these columns 4a, 4b, Brackets B1, B2, B3, and B4 that serve as top plate seats are interposed between the tops of 4c and 4d and the bottom surface of the horizontally long top plate 2, respectively.
[0013]
That is, these brackets B1 to B4 are, as shown in FIG. 2 and FIG. 3, an extension portion 7 in which a column mounting portion 8a (see FIG. 3b) that is mounted on the top of the columns 4a to 4d via a bolt is projected. The top plate mounting portion 8 (hatched portion) is formed upright from the extending portion 7.
[0014]
As shown in FIGS. 3 (a) and 3 (b), the top plate mounting portion 8 has a number of screw holes formed on the top surface to which the top plate 2 is attached. In addition to the stepped surfaces 10 a and 10 b that are formed to stand upright, a column mounting portion 8 a that is spaced apart from the top plate mounting portion 8 and stands on the upper surface of the extending portion 7 is formed flush with the top surface.
[0015]
And the internal thread is formed in this support | pillar attachment part 8a, and bracket B1-B4 is attached to each support | pillar 4a-4d top with the volt | bolt (not shown) inserted from the downward direction of the support | pillar. A pair of fitting bosses 12a and 12b serving as shaft portions having insertion holes h1 and h2 project from the upper surface of the support surface 7b of the extension portion 7.
[0016]
Further, as shown in FIG. 2, a pair of positioning pins P1 and P2 (shown by black circles in the figure) that fit into a plurality of positioning holes on the upper surfaces of the connecting frames F1 and F2 constituting a part of the top plate support frame described later. Is protruding.
[0017]
Next, it attaches to a top-plate support frame and demonstrates with reference to FIG.1, FIG.2 and FIG.4, FIG.5. The top plate support frame X includes connecting frames F1 and F1 ′ arranged opposite to each other and an intermediate frame 6 connected therebetween. Similarly, the connecting frames F4 and F4 ′ and an intermediate frame 6 connected therebetween are connected. The frames F2 and F3 and the intermediate frame 5 connected therebetween, and the connection frames F2 and F2 ′ and the intermediate frame 5 connected therebetween, respectively.
[0018]
First, the connection frame will be described. Since all the connection frames have the same configuration, the specific connection frame F1 will be described.
[0019]
As shown in FIGS. 4 and 5, the connection frame F1 has an upper surface F1a that supports the lower surface of the top plate 2, a top plate outer surface F1b, an intermediate frame connection surface F1c, and a partially opened opening. The top plate inner side surface F1d is formed of a rectangular tube having a bottom surface that is open on the entire surface, and the height is formed to the height from the support surface 7b of the bracket B1 to the top plate mounting portion 8, and this height The width and width are formed in the same shape as that of the intermediate frame 6 to be connected, and have a box-shaped structure having a predetermined length having a hollow portion 22 that is open on the bottom surface and the inner surface of the top plate.
[0020]
Further, a boss 20 having an insertion hole 26 through which the shaft portion of the bolt 28 is inserted up and down is formed on one end side of the connection frame F1, and the lower surface thereof is fitted into the fitting boss 12a of the bracket B1. A joint hole 25b is formed, and a counterbore hole 25a for accommodating the head of the bolt 28 is formed on the upper surface.
[0021]
In addition, a rectangular tube-shaped end surface formed on the other end side of the connecting frame F1 can be fitted to the inner peripheral wall 6a of the inner surface of the end portion of the intermediate frame 6, and a plurality of protrusions are formed on the outer periphery. The stepped strip plate 14 is formed, and a bolt insertion hole H for inserting the connecting bolt 15 is formed at the center.
[0022]
Next, the connection structure of the intermediate frame connected to the connection frame will be described with reference to FIGS. 4 and 5. The connection structure of the intermediate frame has the same structure as all the other intermediate frames, and therefore has a specific structure. The intermediate frame 6 will be described.
[0023]
On the inner surface of the end portion of the intermediate frame 6, a rectangular inner peripheral wall 6 a that can be fitted to the stepped strip plate 14 of the connecting frame F <b> 1 is formed, and a predetermined depth from the end portion of the intermediate frame 6. A blind plate 6b serving as a screw seat having a screw hole TH formed of a female screw is welded to the inner peripheral wall.
[0024]
As shown in FIG. 4 (a), a plurality of positioning holes Q1, Q2 and Q3 are formed on an arc having a radius centered on the insertion hole 26 of the connecting frame F1, and the radius thereof is shown in FIG. 3 (a). It is equal to the distance from the center of the insertion hole h1 of the fitting boss 12a of the bracket B1 shown to the positioning pin P1. The positioning hole Q2 disposed in the middle is configured as two communicating positioning holes Q2′Q2 ″ that are close to each other. Further, a bolt insertion hole 24 for attaching the top plate 2 is formed at substantially the center of the upper surface of the connection frame F1.
[0025]
Accordingly, when the fitting holes 25b of the connecting frames F1, F2 are inserted into the fitting bosses 12a, 12b of the bracket B1, and the positioning holes Q1 are inserted into the positioning pins P1, P2 on the bracket B1, respectively. As shown in FIG. 2, the pair of connecting frames F1 and F2 can form an angle (90 degrees) perpendicular to each other.
[0026]
In FIG. 2, after the coupling frame F1 is inserted into the fitting boss 12a, the fitting hole 25b is rotated clockwise around the fitting hole 25b to insert the positioning pin P1 into the outer positioning hole Q3. The connecting frame F1 can be installed at a predetermined angle with respect to a straight line connecting the center of 25b and the positioning pin P1.
[0027]
Similarly, if the positioning holes Q2 ′ and Q2 ″ are similarly selected and inserted into the positioning pins P1, the connecting frames F1 have different angles with respect to the straight line connecting the center of the fitting hole 25b and the positioning pins P1. Can be opened and installed.
[0028]
As described above, according to the top plate support frame structure of the present invention, the top plate support frame X is connected to the four support posts 4a, 4b, 4c, and 4d, the connection frames F1, F2, F1 ′, F2 ′, F3, F4, F3 ′, F4 ′ and intermediate frames 5 and 6 whose ends are connected to each other via connecting bolts 15 are provided. These intermediate frames 5 and 6 face in the longitudinal direction. A screw hole TH is formed, and the lower surface of the connection frame and the inner side surface F1d of the top plate are opened so that the connection bolt 15 can be screwed into the screw holes TH of the intermediate frames 5 and 6 through the hollow portion 22 from the connection frame side. Therefore, the connecting bolt 15 is not visually observed from the outside of the table by the top plate outer surface F1b.
[0029]
In addition, the connecting bolt 15 can be easily inserted in the longitudinal direction from the hollow portion 22 of the connecting frame, and the screwing operation of the intermediate frames 5 and 6 to the screw holes TH through the bolt insertion holes H can be easily performed.
[0030]
Further, as described above, the connecting frame F1 is formed of a rectangular tube having the upper surface F1a that supports the lower surface of the top plate 2, the top plate outer surface F1b, and the intermediate frame connecting surface F1c, and the intermediate frame 5 is a connecting frame. F1 has a stepped ridge plate 14 and an insertable inner peripheral wall 6a. A blind plate 6b serving as a screw seat having a screw hole TH is welded to the inner peripheral wall 6a. The board 6b can be pulled into the connection frame F1 side to achieve a connection without backlash.
[0031]
Further, the connecting frame F1 is rotatably held by inserting the fitting hole 25b on the lower surface of one end into the fitting boss 12a of the bracket B1, and then a plurality of the connecting frames F1 with respect to the positioning pin P1 protruding from the bracket B1. The positioning holes Q1, Q2 and Q3 are selectively engaged to be supported and fixed at arbitrary angular positions. Therefore, even if the shape of the top plate 2 is not only a horizontally long rectangle but also a polygonal shape, the mounting angle of the top support frame can be changed to an arbitrary angle position according to the top plate shape. .
[0032]
Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these examples. For example, the bottom surface of the connection frame has been described as an example in which all the bottoms are open. It is sufficient that it can be inserted, and a part of the connection frame may be opened in consideration of the length of the connection frame and the size of the connection bolt 15.
[0033]
【The invention's effect】
The present invention has the following effects.
[0034]
(A) According to the invention of claim 1, the male screw member can be hidden by the outer surface of the top plate of the connection frame, and even if the upper surface of the connection frame supporting the top plate is closed, the entire surface of the connection frame The male screw member can be easily inserted in the longitudinal direction of the intermediate frame by the lower surface opened and the inner side surface side of the opened top plate.
[0035]
(B) According to the invention of claim 2 wherein, backlash-free coupling is achieved since it is possible to draw the screw seat the coupling frame side.
[0036]
(C) According to the invention of claim 3, the axial center of the connection frame and the intermediate frame can be accurately matched by fitting the protruding plate to the inner surface of the intermediate frame.
[0037]
(D) According to invention of Claim 4, the attachment angle of a top-plate support frame can be changed according to a top-plate shape.
[Brief description of the drawings]
FIG. 1A is a plan view of a table employing a top support frame structure according to an embodiment of the present invention, and is a cross-sectional view taken along line XX of FIG. 1B, and FIG. It is a side view.
FIG. 2 is a partially enlarged plan view showing a main part of the top plate support frame structure.
3A is a plan view of a bracket, and FIG. 3B is a side view of the bracket.
4A is a plan view of the top plate support frame, FIG. 4B is a cross-sectional view taken along the line AA in FIG. 4A, and FIG. 4C is a view taken in the direction of arrow B in FIG.
FIG. 5 is an exploded perspective view of the top support frame.
[Explanation of symbols]
1 Table 2 Top plates 4a to 4d Posts 5 and 6 Intermediate frame 6a Inner peripheral wall 6b Blind plate (screw seat)
7 Extension part 7b Support surface 8 Top plate attachment part 8a Column attachment part 10a, 10b Stepped surface 12a, 12b Fitting boss 14 Projection plate 15 Connection bolt (male screw member)
20 Boss 22 Hollow portion 24 Bolt insertion hole 25a Counterbore hole 25b Fitting hole 26 Insertion hole 28 Bolt B1 Bracket F1, F2, Connection frame F1 ', F2' Connection frame F3, F4 Connection frame F3 ', F4' Connection frame F1a Upper surface F1b Top plate outer surface F1c Intermediate frame connection surface F1d Top plate inner surface H Bolt insertion holes h1, h2 Insertion holes P1, P2 Positioning pins Q1, Q2, Q3 Positioning holes Q2 ', Q2''Positioning holes TH Screw holes (female screws) Part)

Claims (4)

A top plate support frame structure such as a table having a top plate, a plurality of support columns, and a top plate support frame bridged between the support columns, wherein the top plate support frame is connected to a support frame; The connecting frame includes an intermediate frame having a female screw portion that is screw-coupled. The connecting frame has at least an upper surface that supports the top plate, a top plate outer surface, and an intermediate frame connecting surface, and is intermediate from the connecting frame side. A top plate support frame structure for a table or the like, characterized by comprising a lower surface whose entire surface is open so that a male screw member can be inserted toward the female screw portion of the frame, and an open inner surface of the top plate. The connecting frame is constituted by square-section tube member, wherein the intermediate frame is composed of rectangular tube body and fitted possible rectangular tube of the connecting frame, the female screw portion on the inner surface of the rectangular tube of the intermediate frame The top plate support frame structure of a table or the like according to claim 1, which is formed on a fixed screw seat.   The top plate support frame structure for a table or the like according to claim 2, wherein the intermediate frame connection surface is provided with a protruding plate that can be fitted to the inner surface of the intermediate frame.   The top frame support frame structure for a table or the like according to any one of claims 1 to 3, wherein the connecting frame is supported and fixed at an arbitrary angular position with respect to a top plate seat provided at an upper end of the column.

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