JPH0773550B2 - Desk auxiliary member connection structure - Google Patents

Description

The present invention relates to an auxiliary member connecting structure for a desk, which is preferably used in an office or the like.

[Prior Art] In desks such as offices, in order to extend the top plate surface of the main top plate whose left and right sides are supported by side plates, an auxiliary top plate that is not supported by the side plates is often connected. In particular, when the desk has a main front panel that covers the lower limb space on the side opposite to the use surface of the main top, it is necessary to attach the auxiliary front panel to the auxiliary top. On the contrary, it is of course possible to remove the connected auxiliary top plate and auxiliary front panel and use the desk as a single unit again. For this reason, many recent desks have a structure in which the auxiliary top plate and the auxiliary front panel can be detachably connected at any time.

Fig. 24 shows the connecting structure of the tops, which is often found on wooden desks, etc., where complicated processing is difficult. The main top panel b ₁ which is supported by the legs a, a concave portion d ₁ which is open to the lower surface c ₁ side edge vicinity is formed, the side edge e ₁ of the recess d ₁ and Shuten plate b ₁ A bolt insertion hole f ₁ is provided horizontally between them. Further, the auxiliary top plate b ₂ is formed with a recess d ₂ opening to the lower surface c ₂ near the side edge, and the bolt is inserted between the recess d ₂ and the side end surface e ₂ of the auxiliary top plate b _2. The hole f ₂ is drilled horizontally. Then, the side end surface e ₁ of the main top plate b _{1 and} the side end surface of the auxiliary top plate b ₂ are
When adhering the e _2, bolts g on both bolt insertion holes f _1, f ₂
The auxiliary top plate b ₂ can be connected to the main top plate b ₁ by inserting the nuts h into the recesses d ₁ and d ₂ at both ends thereof.

Further, although not shown, when connecting the auxiliary front panel, a bolt insertion hole is provided at an appropriate portion of the side plate a to fasten the metal fitting so that the auxiliary front panel can be fixed to the metal fitting. Is customary.

[Problems to be Solved by the Invention] However, in a desk that employs the above-described top plate connection structure, when the bolt g is removed and the desk is used alone,
As shown in the figure, the bolt insertion hole f ₁ is exposed on the side end surface e ₁ of the main top plate b ₁ , which is unsightly. Also, when the above-described front panel connection structure is adopted, the bolt insertion hole is also exposed when the bolt is removed, which is unsightly.

Although such an inconvenience can be solved to some extent by closing the bolt insertion hole f and the like with a resin cap or the like, recent offices are rapidly becoming intelligent, and functional and design of all furniture is improved. With the ever-increasing demand for highly sophisticated products, such inconvenience cannot easily be tolerated by the discerning user. Moreover, small parts such as resin caps are
Management during the unused period tends to be ambiguous, and when the period is long, it is often lost and unusable when it is desired to use again.

On the other hand, it is not easy to assemble and disassemble the main top plate and the side plate on a wooden desk or the like where it is difficult to perform such complicated processing. It is customary that they are simply connected by a coated dowel or the like. For this reason, the desk is almost completed at the factory stage, and there is a problem in that it is extremely inconvenient for subsequent handling related to loading / unloading and inventory management.

SUMMARY OF THE INVENTION It is an object of the present invention to solve these problems all at once and to provide a desk auxiliary member connecting structure which has a small number of parts and is easy to handle.

[Means for Solving the Problems] The present invention adopts the following structure in order to achieve such an object.

That is, the auxiliary member connecting structure for a desk according to the present invention is such that a pair of connecting plates having retaining elements are attached to the main top plate of the desk, and the auxiliary top plate and the auxiliary top plate are attached to the main top plate through these connecting plates. The auxiliary front panel is connected.

For this purpose, the desk is provided with left and right side plates, a connecting fitting whose outer edge portion is in contact with the upper end surface of the side plate, and a first fastening for fastening the outer edge portion of the connecting fitting to the side plate from the upper surface side. Bolt and
A main top plate whose side edge is abutted against the upper end surface of the side plate via the connection fitting; and a second fastening bolt for fixing the inner edge portion of the connection fitting to the main top plate from the lower surface side. A joint having a main front panel for blinding the lower limb space on the side opposite to the use surface, and a joint having the outer edge of the connection fitting as a joint bottom between the side end surface of the main top plate and the outer surface of the side plate. And forming a pair of slits in the joint by partially cutting out the connecting fitting.

Further, each of the connecting plates, one end is inserted into each slit of the desk, respectively, the other end is extended laterally,
One end of one connecting plate is provided with a retaining element that engages with an engaging portion provided in the slit when the other end is horizontally rotated in the use surface direction or the non-use surface direction of the desk. On one end side of the connecting plate of No. 1, there is provided a retaining element that engages with an engaging portion provided in the slit when the other end side is horizontally rotated in the direction opposite to the use surface of the desk or the direction of the use surface. On the lower surface near the other end, a mounting portion having a mounting surface continuous with the inner surface of the main front panel of the desk is provided at the tip.

Then, at the position where the other end of each connecting plate is rotated to a position where the retaining element engages with the engaging portion, a connecting bolt is used on the lower surface of the auxiliary top plate adjacent to the main top plate. It is characterized in that the auxiliary front panel is attached to the attachment surface of the other connecting plate while being fixed.

As a preferred mode of the retaining element and the engaging portion, the retaining element is a projection provided at one end of the connecting plate, and the engaging portion is a recess provided at the back of the slit, and the retaining element is one end of the connecting plate. A concave portion provided in the slit, the engaging portion being a protrusion provided at the back of the slit, a retaining element being a concave portion provided in an intermediate portion of the connecting plate, and the engaging portion being a protrusion provided at an opening edge of the slit , The one in which the retaining element is a protrusion provided at one end of the connecting plate and a recess provided in the middle thereof, and the engaging portion is a recess provided in the back of the slit and a protrusion provided at the opening edge thereof, and the retaining element is connected For example, the recesses may be provided at one end and the middle of the plate, and the engaging portions may be projections provided at the back of the slit and the opening edge.

In order to easily provide the mounting portion, it is advisable to rigidly contact the lower surface of the connecting plate with the L-shaped metal fitting in side view. In addition, in order to reduce the load on the connecting plate, it is effective to support the lower end of the auxiliary front panel with a fixture attached to the lower end surface of the side plate. The lower end surface is desirable.

If you want to expand the main top surface of the main top plate into a table, it is better to connect the other side edge of the auxiliary top plate to the main top plate of another desk,
In order to make it possible to freely realize a variety of connection forms, at least the depth dimensions of the main top plate and the auxiliary top plate should be unified.

As a mode in which the effect of the present invention is particularly remarkable, a desk in which at least the main top plate and the side plates are made of wood can be mentioned.

[Operation] In a desk adopting such an auxiliary member connecting structure, when it is desired to use the auxiliary top plate and the auxiliary front panel,
First, one end sides of the pair of connecting plates are inserted into both slits of the desk, and the other end portions of the connecting plates are rotated in opposite directions. Next, the side end surface of the auxiliary top plate is brought into close contact with the side end surface of the main top plate, and in this state, the other end of the connecting plate is fixed to the lower surface of the auxiliary top plate using a connecting bolt. Then, the auxiliary front panel is attached to the attachment surface of the connecting plate. Thus, the main top surface of the main top plate can be expanded by the auxiliary top plate, and the lower limb space of the auxiliary top plate on the non-use side can be covered by the auxiliary front panel.

In this state, however, both connecting plates are in a state in which the retaining elements are simply engaged with the engaging portions of the slits in the rotated position, but the connecting plates have the other end of the auxiliary top plate. Since it is fixed to the lower surface, it cannot rotate freely, and the engagement with the slit will not be released unless the connecting bolt is removed. For this reason, it is possible to obtain a somewhat effective connection state for pulling the main top plate and the auxiliary top plate together. In addition, since the engaging directions of these are set to be opposite to each other, the auxiliary top plate is displaced relative to the main top plate in both the use surface direction and the non-use surface direction. Is impossible. Therefore, while this auxiliary member connecting structure is simple in structure and easy to operate,
The connection of the auxiliary top plate to the main top plate can be secured. Further, since the auxiliary front panel is connected to the connecting plate fixed in this way, the mounting state thereof is also reliable.

On the other hand, if the auxiliary front panel and the auxiliary top plate are removed and the connecting plate is rotated and pulled out from the slit by the operation opposite to the above, the desk can be used alone. Then, in this state, joints are exposed on the side of the desk, and a slit is opened at the bottom of the joint, but the joint itself is originally useful for improving the aesthetics of the desk, Since the slit is located at the bottom of the joint, it is difficult to enter the visual field of a person at an angle, and even if the slit is in the visual field, the slit is located at the same position as the joint so that it does not feel so uncomfortable. For this reason, it is possible to significantly reduce the unsightness, as compared with the conventional connection structure in which the bolt insertion hole is opened at a place that should be flush with the original connection structure. Further, when the desk is used alone, it is not necessary to use a resin cap or the like, and it is possible to eliminate the troublesome management of small parts. In addition, since the connecting plate also serves as connecting the auxiliary front panel, it is possible to eliminate the problem that the side plate or the like is provided with a bolt insertion hole for attaching the auxiliary front panel.

Further, when the main top plate and the side plate are connected by such a connecting fitting, the outer edge portion and the first fastening bolt are completely covered by the side edge portion of the main top plate in the assembled state, and thus are exposed to the outside. Although the inner edge portion and the second fastening bolt are exposed under the main top plate, they cannot enter the human visual field unless the user looks under the main top plate. For this reason, it is possible to simply connect the main top plate and the side plates without making complicated processing, without making them difficult to see. Moreover, the main top plate can be removed from the connection fitting by loosening the second fastening bolt, and the connection fitting can be removed from the side plate by further loosening the first fastening bolt from that state. A desk that employs this connection structure can easily assemble and disassemble the main top plate, the side plates, and the connection fittings at any time.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 21.

As shown in FIG. 1, a desk A to which this auxiliary member connecting structure is applied has a side plate 1, a connecting fitting 2, and a first fastening bolt.
3 _1, a main top plate 4, the second fastening bolt 3 _2, comprises a main front panel 9. Further, joint 5 and the slit 6 ₁ laterally, 6 ₂ are formed. Then, one ends of the connecting plates 7 ₁ and 7 ₂ corresponding to the slits 6 ₁ and 6 ₂ are mounted, and the auxiliary top plate 8 is attached to the other ends of the connecting plates 7 ₁ and 7 _2.
As well as fastening the, so that may further attach the auxiliary front panel 100 to the connecting plate 7 _2.

Specifically, the side plate 1 is, as shown in FIG.
It is made of wood in which a decorative plate 12 is adhered to six sides of a frame-shaped core material 11, and along the longitudinal direction, the vicinity of the use surface P, the vicinity of the non-use surface Q, and an intermediate portion therebetween 3 in total. Fastening position X in place
Has been set (see FIG. 2). Then, the demon nut 13 is driven into the upper end surface 1a of the side plate 1 corresponding to these fastening positions X.

As shown in FIGS. 1, 3, and 5 to 7, the connecting fitting 2 has a horizontal outer edge portion 21 and a horizontal inner edge portion 22 which are flush and continuous with each other. Bolt insertion holes 24 that widen toward the upper surface 2b are formed at three locations on the outer edge portion 21 corresponding to the position X, and lower surfaces are provided at three locations on the inner edge portion 22 corresponding to those fastening positions X. A bolt insertion hole 25 that widens to the 2c side is formed. Further, connecting positions Y ₁ and Y ₂ are set between the fastening positions X and the fastening positions X (see FIG. 2), and the slits 6 ₁ correspond to these connecting positions Y ₁ and Y _2. , notches 26, 27 to form a 6 ₂ is provided in a part of the fitting 2. Slit 6 ₁ is one having the opening edge 26a in the outer edge, it forms a parallelogram extending inner edge direction and using plane P direction from the opening edge 26a. Then, the back of the counter-use surface Q side, the engaging portion serving recess 26b for engaging the connecting plate 6 ₁
Is formed. The slit 6 _2, the opening edge to the outer edge
27a, and does not have a parallelogram extending from the opening edge 27a in the inner edge direction and the direction of the non-use surface Q. Then, the back of the use surface P side to form an engaging portion serving recess 27b for engaging the connecting plate 6 _2.

Then, the lower surface 2c of the outer edge portion 21 of the connection fitting 2 is brought into contact with the upper end surface 1a of the side plate 1 as shown in FIGS. 1 and 3,
In this state, the upper surface 2b side in the bolt insertion holes 24 by inserting the first fastening bolt 3 _1, is fastened to the distal end to the demon nut 13.

As shown in FIG. 3, the main top plate 4 is made of wood in which a decorative plate 42 is attached to six sides of a frame-shaped core material 41, and the lower surface 4a is attached to the fastening position X. Three corresponding oni-nuts 43 are driven in. Then, the lower surface 4a of the side edge portions 4 ₁ of the fitting 2 is spliced to the upper surface 2b of the outer edge portion 21, in this state, the respective bolt insertion holes 25 on the lower surface 2c of the second side fastening bolt 3 ₂ It is inserted and the tip is fastened to each demon nut 43.

In this way, in the desk A, the side plate 1 and the main top plate 4 are connected via the connection fitting 2. Then, in this state, as shown in FIG. 3, the outer edge 2a portion of the connection fitting 2 is set to be recessed with respect to the outer surface 1b of the side plate 1 and the side end surface 4b of the main top plate 4, and this portion is set. Is the joint 5 on the exterior. Also, along the joint bottom 2a, both connecting positions Y ₁ ,
Y ₂ in Figure 1, thereby opening the slit 6 _1, 6 ₂ described above in the state shown in FIGS. 2 and 4 FIG.

Further, the connecting plates 7 ₁ and 7 ₂ are provided in a shape that can be attached to and detached from the slits 6 ₁ and 6 ₂ . Specifically, the one end of the connecting plate _71, FIG. 1, FIG. 5, FIG. 8,
As shown in Figure 9 and Figure 13, slit the connecting plate 7 ₁
Insert 6 in ₁ retaining element serving protrusion 71a which engages the recess 26b of the slit ₆₁ when launched horizontally rotating the other end to the working surfaces P direction of the desk A (first drawing direction of arrow I in) It is provided with, those of the connecting plate ₇₁ at the stage engaged state, using surface P
The side edge 71b is brought into contact with the opening edge 26a, and the longitudinal direction is set to the side plate 1.
It can be made to substantially coincide with the thickness direction of the. Connecting plate 7 ₂
On one end side of Fig. 1, Fig. 5, Fig. 10, Fig. 11 and Fig.
13 As shown, the connecting plate 7 ₂ when obtained by horizontally rotating the other end is inserted into the slit 6 in ₂ counter-use surface Q direction of the desk A (first arrow in the drawing direction II) slit 6 retaining element serving protrusion 72a which engages the _second recess 27b Yes is provided, the connecting plate 7 ₂ state in which they were engaged stage, counter-use surface Q side of the edge 72b of the opening edge 27a So that the longitudinal direction thereof can substantially coincide with the thickness direction of the side plate 1. Further, on the other end of these connecting plates _71, 7 _2, bolt insertion holes 73 which widens downward for inserting connecting bolts 3 ₃ are respectively bored.

As shown in the left half of FIG. 12, the auxiliary top plate 8 is made of wood and has a decorative plate 82 attached to six sides of a frame-shaped core material 81.
A portion between one side edge and the other side edge is fan-shaped as shown in FIG. Then, the side end surface 8b is brought into close contact with the side end surface 4b of the main top plate 4, and the lower surface 8a is brought into contact with the upper surfaces of the respective connecting plates 7 ₁ , 7 ₂ at a position where it is driven into the lower surface 8a. 84 the so that each connecting plate _71, 7 ₂ of the bolt connecting bolts 3 ₃ where the insertion hole 73 is inserted can be fastened to.

Further, the desk A is in manner capable of performing also the attachment of the connecting plate 7 ₂ auxiliary front panel 100 as shown in FIG. 1 by using. This auxiliary front panel 100 is
It is used to cover the lower limb space of the auxiliary top plate 8 on the side opposite to the use surface Q, and has the same structure as that in which a decorative plate is attached to the core material. The whole is curved along it. Meanwhile, this auxiliary front panel 100
In order to attach the said connecting plate 7 ₂ first diagram, the FIG. 14-FIG. 16, FIG. 20 as well as the mounting portion 110 as shown in FIG. 21
Are provided integrally. The mounting portion 110 is a side view L-shaped metal fitting body 11 in contact rigid with the upper end face 111a on the lower surface 7b of the connecting plate 7 ₂
1 and a mounting surface 112 formed by bending at the tip of the metal fitting body 111
Made of a, in a state where the connecting plate 7 ₂ is attached to the slit 6 _2, the inner surface 9a of the mounting surface 112 is the main front panel 9
It is arranged so as to be substantially flush with. Then, the bolt insertion hole 112a provided on the mounting surface 112
The auxiliary front panel 100 can be fixed by inserting a bolt (not shown) and fixing the tip to the inner surface 100a of the auxiliary front panel 100.

Further, in order to secure the mounting state, the lower end portion of the auxiliary front panel 100 and the lower end portion of the side plate 1 are attached to the mounting tool 1.
I am trying to connect through 20. This fixture 120
Is a side plate 1 as shown in FIGS. 1 and 17 to 21.
The flange portion 121 abutting on the lower surface of the skirting board 14 and the flange portion 122 abutting on the inner surface 100a and the lower surface 100b of the auxiliary front panel 100 are rigidly contacted via the plate-shaped metal fitting body 123. A bolt (not shown) is inserted from the lower surface side into the long hole 121a provided in the 121, and the fixture 120 is attached to the baseboard 1.
The auxiliary front panel 100 is fixed to the lower surface of the auxiliary front panel 100 by fixing it to the inner surface 100a of the auxiliary front panel 100 by inserting a bolt (not shown) from the inner surface side into the bolt insertion hole 122a provided in the flange portion 122 in this state. Can be supported from the lower surface 100b side.

In the desk A adopting such an auxiliary member connecting structure,
If you want to use an auxiliary top plate 8 and an auxiliary front panel 100, first, the two slits ₆₁ and 62 a pair of connection plates ₂ of a desk A
Insert one end side of 7 ₁ and 7 ₂ respectively and connect the connecting plate 7 ₁ to the working surface P
On the side, also to the respective horizontal pivots the connecting plate 7 ₂ in the counter-use surface Q side. Next, the side end surface 8b of the main top plate 4 is brought into close contact with the side end surface 8b of the auxiliary top plate 8, and in that state, the other end portions of both connecting plates 7 ₁ and 7 ₂ are connected to the lower surface of the auxiliary top plate 4. Fasten with bolts 3 ₃ . Then, attaching the auxiliary front panel 100 to the mounting surface 112 of the connecting plate 7 _2. As a result, the top plate surface of the main top plate 4 is expanded by the auxiliary top plate 8, and the non-use surface Q of the auxiliary top plate 8 is expanded.
The lower limb space on the side can be blindfolded by the auxiliary front panel 100.

Thus, in this state, the connecting plates 7 ₁ and 7 ₂ are in a state where the protrusions 71a and 72a are simply engaged with the recesses 26b and 27b of the slits 6 ₁ and 6 _{2 at} the rotated position. But,
Since the other ends of the connecting plates 7 ₁ and 7 ₂ are fixed to the lower surface 8a of the auxiliary top plate 8, free rotation is prohibited, and the connecting bolt 3 ₃
As long as not remove, thereby preventing the engagement between the slit 6 _1, 6 ₂ is released. For this reason, it is possible to obtain a somewhat effective connection state for pulling the main top plate 4 and the auxiliary top plate 8 together. Furthermore, since this one sets the engagement directions thereof to be opposite to each other, the auxiliary top plate 8 is
On the other hand, it becomes impossible to shift the position in the direction of the use surface P and the direction of the opposite use surface Q relatively. Therefore, the auxiliary member connecting structure has a simple structure and is easy to operate, but the auxiliary top plate 8 can be reliably connected to the main top plate 4. In addition, the auxiliary front panel 100
Because are connected to the connecting plate 7 ₂ fixed to this, it becomes what ensures its mounting state.

On the other hand, by the reverse operation of the above, the auxiliary front panel 100
The desk A can be used alone by removing the auxiliary top plate 8 and rotating the connecting plates 7 ₁ and 7 ₂ to extract them from the slits 6 ₁ and 6 ₂ . In this state, the joint 5 is exposed to the side of the desk A, and the joint bottom 2a has a slit.
Although 6 ₁ and 6 ₂ are opened, the joint 5 itself is originally useful for improving the aesthetics of the desk A, and the slits 6 ₁ and 6 ₂ are located at the bottom 2a of the joint so that the human being is It becomes difficult to enter the field of view angularly, and even if it enters the field of view, it does not feel so uncomfortable because it is at the same position as the joint 5. For this reason, it is possible to significantly reduce the unsightlyness as compared with the conventional connection structure in which the bolt insertion hole is opened at a place that should be flush with the original connection structure. Further, when the desk A is used alone, it is not necessary to use a resin cap or the like, and it is possible to eliminate the troublesome management of small parts. Thereon, the connecting plate 7 ₂ also serves as a mounting of the auxiliary front panel 100, can be eliminated at the same time defects that have been provided with bolt insertion holes in the side plate or the like for attaching the auxiliary front panel 100.

Further, when the main top plate 4 is connected by the connecting metal fitting 2 to which the side plate 1 is attached, the outer edge portion 21 and the first fastening bolt 3 ₁ are completely connected to the side edge portion 4 ₁ of the main top plate 4 in the assembled state. prevents issue table outside because it is covered with, although the inner edge 22 and the second fastening bolt 3 ₂ is exposed under Shutenban 4, human vision unless compelling look into 4 lower Shuten plate I will never enter. For this reason, it is possible to simply connect the main top plate 4 and the side plate 1 without making complicated processing, without making them difficult to see. Moreover, the second fastening bolt 3 ₂ can remove the main top plate 4 from fitting 2 by loosening further first fastening bolt 3 connected ₁ from the side plate 1 by loosening fitting from the state Since the 2 can be removed, the desk A adopting this connecting structure can easily assemble and disassemble the main top plate 4, the side plate 1 and the connecting fitting 2 at any time.

Incidentally, when mounting the connecting plate _71, 7 ₂ in the above embodiment, the former rotationally operated to use surface P direction, although the latter counter-use surface Q direction so as to rotate the operation, the former conversely May be rotated in the direction of the non-use surface Q, and the latter may be set in the direction of the use surface P. In this case, it is necessary that the mounting portion 110 does not interfere with its operation. Also,
The retaining element and the engaging portion are not limited to those in the above embodiment. For example, as shown in FIG. 22, the retaining element is connected to the connecting plate.
207 _1, 207 ₂ of the recess 271a provided at one end portion, and 272a, the protrusion 226b provided with engagement portions at the back of the slit 206 _1, 206 _2, and those with 227b, as shown in Figure 23, retaining Plate connecting elements 30
7 _1, 307 ₂ of the recess formed in the intermediate portion 371a, and 372a, the protrusion 326b provided with engagement portions to the opening edge of the slit 306 _1, 306 _2, 327b
And the like are possible. Further, these retaining elements and the engaging portions can be used in combination, and although not shown, the retaining elements are a protrusion provided at one end of the connecting plate and a recess provided at an intermediate portion thereof, and the engaging portion is A form of a recess provided in the back of the slit and a projection provided on the opening edge thereof,
The retaining element may be a recess provided at one end and an intermediate portion of the connecting plate, and the engaging portion may be a protrusion provided at the back of the slit and at the opening edge. Furthermore, it is also possible to use a shape other than that shown in the figure for the auxiliary top plate.
At this time, if several kinds of auxiliary tops are prepared and their depth dimensions are set to at least the same depth as the main top, it is possible to widen the selectivity when using the auxiliary tops and It is effective in diversifying. Furthermore, this connecting structure is not limited to the one in which the top plate and the side plate are made of wood, and the same action and effect can be obtained when applied to a desk having the same problem. In addition, the cross-sectional shapes of the mounting portion and the mounting tool are not limited to the illustrated examples, and various modifications can be made without departing from the spirit of the present invention.

[Advantage of the Invention] According to the desk auxiliary member connecting structure according to the present invention, the main top plate and the auxiliary top plate of the desk can be surely connected by the connecting plate, and further, the connecting plate can be removed to separate the desk as a single unit. When using it, since the slit where the connecting plate was inserted opens to the joint floor where the position is not conspicuous, even if it is possible to connect the auxiliary top plate, there is almost no effect on the appearance of the desk, and the resin cap It will also be released from the troublesome management of small parts such as, and by attaching and detaching the first and second fastening bolts on top of that, the main top plate, side plates, and connecting fittings can be easily assembled and disassembled. Since it can be carried out, it is possible to effectively solve the handling problem that the wooden desk or the like had, and even if the auxiliary front panel can be attached to the auxiliary top plate, it is only necessary to provide the attachment portion on the connecting plate. To finish
Similar to the case of connecting the main top plate and the auxiliary top plate, it is possible to eliminate the adverse effects on the appearance and the miscellaneous tasks of parts management that occur when using the desk alone, and it is also easy to attach and detach the connection plate. As a result, a reliable connected state can be obtained even if the number of tightening points of the connecting bolt is reduced, so that the convenience of work and handling can be improved.

[Brief description of drawings]

1 to 21 show an embodiment of the present invention. FIG. 1 is a perspective view showing a state in which an auxiliary top plate and an auxiliary front panel are connected to a desk, with a part thereof omitted, and FIG. A side view, FIG. 3 is a sectional view taken along the line III-III in FIG. 2, FIG. 4 is a sectional view taken along the line IV-IV, FIG. 5 is a plan view of the connecting fitting, FIG. 6 is a front view thereof, and FIG. The figure is a right side view of the same, FIG. 8 is a plan view of one connecting plate, FIG. 9 is a front view of the same, FIG. 10 is a plan view of the other connecting plate, FIG. 11 is a front view of the same, and FIG. Is a partial cross-sectional view showing the connected state of the main top plate and the auxiliary top plate, and FIG. 13 is XIII in FIG.
-XIII line sectional view, FIG. 14 is a plan view of the mounting portion, FIG. 15 is the same side view, FIG. 16 is the same front view, FIG. 17 is a plan view of the mounting tool,
18 is a side view of the same, FIG. 19 is a front view of the same, FIG. 20 is a schematic side view showing a mounting state of an auxiliary front panel, and FIG. 21 is a front view of the same. Further, FIG. 22 and FIG. 23 are partial plan views corresponding to FIG. 13 showing other embodiments, respectively. First
24 and 25 show a conventional example, FIG. 24 is a sectional view corresponding to FIG. 12, and FIG. 25 is a perspective view corresponding to FIG. A ... Desk, P ... Use surface Q ... Anti-use surface, 1 ... Side plate 1a ... Top surface, 1b ... Outer surface 2 ... Connection fitting, 2a ... Joint bottom (outer edge) 2b ... Top surface, 2c ... Bottom surface 3 ₁ ... 1st fastening bolt 3 ₂ ... second fastening bolt 3 ₃ ... connecting bolt, 4 ... main top plate 4 ₁ ... lateral edge, 4b ... side end face 5 ... joints, 6 _and 62 ... slit 7 _1, 7 ₂ ... Connecting plate, 8 ... Auxiliary top plate 9 ... Main front panel, 21 ... Outer edge part 22 ... Inner edge parts 26b, 27b ... Engaging parts (recesses) 71a, 72a ... Detachment element (projection) 100 ... Auxiliary front panel 100b ... Lower end surface, 110 ... Mounting portion 112 ... Mounting surface, 120 ... Mounting tool 206 ₁ , 206 ₂ ... Slits 207 ₁ , 207 ₂ ... Connecting plates 226b, 227b ... Engaging portions (projections) 271a, 272a ... Detachment preventing elements (recesses) 306 ₁ , 306 ₂ ... Slits 307 ₁ , 307 ₂ ... Connecting plates 326b, 327b ... Engaging portions (projections) 371a, 372a ... Detachment preventing elements (recesses)

Claims (12)

[Claims] 1. A main top plate of a desk is equipped with a pair of connecting plates having retaining elements, and the auxiliary top plate and the auxiliary front panel are connected to the main top plate via these connecting plates. A desk auxiliary member connecting structure, in which the desk has left and right side plates, a connecting metal fitting having an outer edge portion abutting an upper end surface of the side plate, and an outer edge portion of the connecting metal fitting fixed to the side plate from an upper surface side. A first fastening bolt, a main top plate whose side edge is abutted against the upper end surface of the side plate through the connection fitting, and an inner edge portion of the connection fitting is fixed to the main top plate from the lower surface side. A second fastening bolt to be worn, and a main front panel that covers the lower limb space on the side opposite to the use surface, the connection being provided between a side end surface of the main top plate and an outer side surface of the side plate. Forming a joint with the outer edge of the metal fitting as the joint bottom, and forming a pair of slits in the joint with the connecting metal fitting. It is formed by cutting out a part of each of the connecting plates, one end of which is inserted into each slit of the desk, and the other end of which is extended laterally. The one end side is provided with a retaining element that engages with the engaging portion provided in the slit when the other end side is horizontally rotated in the use surface direction or the non-use surface direction of the desk, and the other connecting plate On one end side of the, there is provided a retaining element that engages with the engaging portion provided in the slit when the other end side is horizontally rotated in the direction opposite to the use surface or the use surface of the desk,
On the lower surface near the other end, there is a mounting part at the tip that has a mounting surface that is continuous with the inner surface of the main front panel of the desk, and the other end of each connecting plate engages the engagement part with the engagement part. At the position rotated to the position to be fixed to the lower surface of the auxiliary top plate adjacent to the main top plate using a connecting bolt,
An auxiliary member connecting structure for a desk, wherein an auxiliary front panel is attached to a mounting surface of the other connecting plate. 2. A desk auxiliary member connection according to claim 1, wherein the retaining element is a projection provided at one end of the connecting plate, and the engaging portion is a recess provided at the back of the slit. Construction. 3. A desk auxiliary member connection according to claim 1, wherein the retaining element is a recess provided at one end of the connecting plate, and the engaging portion is a projection provided at the back of the slit. Construction. 4. The desk auxiliary member according to claim 1, wherein the retaining element is a recess provided in an intermediate portion of the connecting plate, and the engaging portion is a protrusion provided at an opening edge of the slit. Connection structure. 5. The retaining element is a projection provided at one end of the connecting plate and a recess provided at an intermediate portion thereof, and the engaging portion is a recess provided at the back of the slit and a projection provided at an opening edge thereof. The auxiliary member connecting structure for a desk according to claim 1, wherein: 6. The retaining element is a recess provided at one end and an intermediate portion of the connecting plate, and the engaging portion is a projection provided at the back of the slit and the opening edge. Desk auxiliary member connection structure. 7. The mounting member is an L-shaped metal fitting in side view, which is rigidly contacted with the lower surface of the connecting plate.
The auxiliary member connecting structure for a desk according to 3, 4, 5 or 6. 8. The lower end portion of the auxiliary front panel is supported by a fixture attached to the lower end surface of the side plate, according to claim 1, 2, 3, 4, 5, 6 or 7. Desk auxiliary member connection structure. 9. The auxiliary member connecting structure for a desk according to claim 8, wherein the fitting supports the lower end surface of the auxiliary front panel. 10. The auxiliary member connecting structure for a desk according to claim 1, wherein the other side edge of the auxiliary top plate is connected to a main top plate of another desk. 11. The auxiliary member connecting structure for a desk according to claim 10, wherein the auxiliary top plate has the same depth dimension as the main top plate. 12. The desk auxiliary member connection structure according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or 11, wherein the top plate and the side plates are made of wood.