JP5983339B2 - Table top plate support device - Google Patents

Description

  The present invention relates to a table top plate support device, and more particularly to a table top plate support device capable of attaching support legs supporting the top plate in a plurality of postures.

  Conventionally, there are provided various types of structures in which a plurality of pairs of aluminum die-casting support legs are used and connected to each other by a connecting body to form a leg device, and a table is constructed by mounting and mounting a top plate thereon. .

  In Patent Document 1, a substantially vertical rod-shaped intermediate support leg having screw holes formed in the inner surface and the lower surface of the lower part, and a seat that extends upward and outward from the upper part of the intermediate support leg and receives the top plate at the upper end are attached. The rod-shaped upper support leg and the support leg formed integrally with the bar-shaped lower support leg that extends downward and outward from the lower part of the intermediate support leg are integrally formed using these screw holes or A plurality of support leg pairs formed by connecting a plurality of parts are attached to form a pair of support legs, and a plurality of the pair of support legs are provided. A table leg device is described which is connected by a paired connection beam.

  In the support leg described in Patent Document 1, the lower support leg extends obliquely toward the floor surface from the lower end of a vertical intermediate support leg corresponding to approximately half of the height of the support leg. Since the lower support leg has a shape that rises at an angle of about 50 degrees with respect to the floor surface, it is difficult to move the foot beyond the lower support leg in the space under the top board.

  Further, in Patent Document 1, the support legs are arranged such that the lower support legs are arranged outward at an angle of about 45 degrees with respect to the long side of the top board at both ends of the long top board, and the support legs located in the middle are The support legs are arranged outward at an angle of 90 degrees with respect to the long side of the top board. In order to realize this aspect, as a structure for mounting the support leg by changing the mounting angle with respect to the top plate, the angle at which the upper end of the upper support leg of the support leg is screw-connected to the seat attached to the lower surface of the top plate is The position is selected and determined, and then the seat is attached to the lower surface of the top plate. Further, the beam connecting portion projecting from the seats on both sides is fitted with a square pipe-shaped connecting beam between the seats, and screwed to the top. The structure provided along the long side of a board is employ | adopted. The seat is always attached to the top plate in the same posture, and the seats located on both sides of the top plate are connected by a connecting beam to support the top plate. It is necessary to prepare at least two kinds of seats for the support seats in the middle, which are not provided to maintain the posture of the seat, and use the ones with the beam connecting parts projecting on both sides. As the number increases, the number of assembly steps increases and the cost increases.

Japanese Patent No. 4457851

  Therefore, in view of the above-described situation, the present invention intends to solve a problem in that a table that supports a top plate by connecting a plurality of support legs with a connecting body ensures a wide space under the top plate and a user. A function that attaches one or a plurality of beam rods so that the angle of the support leg can be changed while supporting the top plate and maintaining the posture of the support leg during assembly. It is in the point which provides the top-plate support apparatus of the table provided with this.

  In order to solve the above-mentioned problem, the present invention provides a table that supports a top plate by connecting a plurality of support legs with a connecting body, and the support legs have upper support legs that extend to the upper end of the intermediate support legs, The connecting portion provided on the base end side of the support portion that supports the top plate provided at the tip of the upper support leg and the bracket provided at the tip portion of the beam rod constituting the connecting body are connected so that the angle can be changed. A table top support device characterized by the above is constructed (claim 1).

  In order to solve the above-described problems, the present invention provides a table that supports a top plate by connecting a plurality of support legs with a connecting body, and the support legs extend from the upper and lower ends of the intermediate support legs to the same side. A support portion having a lower support leg inclined downward and an upper support leg inclined upward, and provided with a grounding portion that contacts the floor surface at a tip portion of the lower support leg, and connecting the top plate to the tip portion of the upper support leg And a connecting portion provided on the base end side of the support portion of the upper support leg and a bracket provided at a tip end portion of the beam rod constituting the connecting body so that the angle can be changed. A top plate support device was configured (claim 2).

  Here, the connecting portion is formed continuously on the base end side of the support portion of the upper support leg, and a locking cylinder portion at the center and an engaging recess for positioning provided on the inner surface of the locking cylinder portion And a plurality of mounting holes and positioning concave grooves provided around the locking cylinder part, and a plurality of pairs are provided radially with respect to the center of the locking cylinder part. A locking piece that locks inside, an engaging convex portion that engages with the engaging concave portion is formed inside the locking piece, and a through hole is formed in the main body portion at a position corresponding to the mounting hole. In addition, it is preferable that a dowel that engages with the concave groove protrudes on the lower surface, and a screw that passes through the through hole is screwed into the mounting hole.

  Then, an attachment surface is formed at a position stepped down with respect to the upper surface of the support portion continuously on the base end side of the support portion of the upper support leg, and the attachment hole is provided with the attachment hole, It is also preferable that the concave groove is formed between the mounting hole and the base of the locking cylinder portion (claim 4).

  Further, the pair of the engagement recess, the mounting hole and the recess is symmetrical with respect to the center line of the upper support leg, and rotational angle positions of 0 degrees, 45 degrees, and 90 degrees with respect to the center of the locking cylinder section. More preferably, it is provided in (Claim 5).

  The table top support device of the invention according to claim 1 as described above is a table that supports a top plate by connecting a plurality of support legs with a connecting body, and the support legs extend to the upper end portion of the intermediate support legs. A connecting portion provided on a base end side of a support portion for supporting a top plate provided at a distal end of the upper supporting leg, and a bracket provided at a distal end portion of a beam rod constituting the connecting body. Since the angles can be changed, the direction in which the support legs are attached can be optimally set according to the position of the top plate, and a plurality of support legs in the middle of assembly can be connected to each other to maintain the posture.

  A table top support device for a table according to a second aspect of the invention is a table for supporting a top plate by connecting a plurality of support legs with a connecting body, wherein the support legs extend from the upper and lower ends of the intermediate support legs to the same side. A lower support leg that is inclined downward and an upper support leg that is inclined upward; a grounding portion that contacts the floor surface is provided at a distal end portion of the lower support leg; and the top plate is coupled to the distal end portion of the upper support leg. Since the support portion is provided, the connecting portion provided on the base end side of the support portion of the upper support leg and the bracket provided on the distal end portion of the beam rod constituting the connecting body are connected so that the angle can be changed. The mounting direction of the support legs can be optimally set according to the position, and the postures can be maintained by connecting the support legs in the middle of assembly to each other. And still sitting in front of the table Can pass over the lower support leg which user's foot is downwardly inclined in the lateral direction and toes can penetrate the rear below the lower support legs, interference is reduced for the operation of the position and the footrest of the user's foot.

  According to a third aspect of the present invention, the connecting portion is formed continuously on the base end side of the support portion of the upper support leg, and is provided on the locking cylinder portion at the center and on the inner surface of the locking cylinder portion. A plurality of engagement recesses, a mounting hole provided around the locking cylinder part, and a positioning groove are provided as a pair, and a plurality of pairs are provided radially with respect to the center of the locking cylinder part. A locking piece to be locked inside the locking cylinder portion, an engaging convex portion to be engaged with the engaging concave portion is formed inside the locking piece, and the main body portion has a position corresponding to the mounting hole. In addition to forming a through hole, a dowel that engages with the groove is projected on the lower surface, and a screw that passes through the through hole is screwed into the mounting hole. Engage with the engaging recess on the support leg, engage the engaging projection on the inner side of the locking piece with the engaging recess on the inner surface of the locking cylinder, and accurately engage the dowel with the recessed groove In-decided tanning condition, just screwing the screw through from above through hole of the bracket to the mounting hole, it may be connected at an angle to the upper support leg securely beam rods without rattling.

  According to a fourth aspect of the present invention, an attachment surface is formed at a position stepped down with respect to the upper surface of the support portion continuously on the base end side of the support portion of the upper support leg, and the attachment hole is formed in the attachment surface. Since the concave groove is formed between the mounting hole and the base of the locking cylinder part, the position where the locking piece at the tip of the bracket is locked to the inner surface of the locking cylinder part and the The position of the mounting hole can be maximized in a narrow space, and the mounting strength is increased by securing the distance between the fastening position by the screw screwed into the mounting hole and the locking position by the locking piece. In addition, with the bracket connected to the mounting surface, the top plate is mounted on the support portion of the upper support leg and the upper surface of the beam rod and attached by screwing or the like, so that the support strength of the top plate is increased.

  According to the fifth aspect, the pair of the engaging recess, the mounting hole, and the recessed groove is symmetrical with respect to the center line of the upper support leg, and is 0 degree, 45 degrees, 90 degrees with respect to the center of the locking cylinder part. Because it is provided at the rotation angle position of the degree, there are more ways to connect the beam rod to the upper support leg, and it can correspond to various support leg arrangements, for example, the lower support leg is the long side of the top board at both ends of the top board The support legs located in the middle can be mounted with the lower support legs placed outward at an angle of 90 degrees with respect to the long side of the top plate. The top plate can be stably supported and the foot space under the top plate can be widely used.

It is the perspective view seen from the upper direction of the table concerning the present invention. It is the perspective view similarly seen from the downward direction of the table which concerns on this invention. It is a whole perspective view of a support leg. (A) is a top view of a support leg, (b) is a side view of a support leg. It is a perspective view of the state which removed the upper leg cover and the lower leg cover from the support leg, and removed the beam rod. It is a perspective view of the support leg which removed the upper leg cover and the lower leg cover. It is the rear view of the support leg which similarly removed the upper leg cover and the lower leg cover. (A) is a longitudinal cross-sectional view of an upper leg cover, (b) is a top view of an upper leg cover. (A) is the perspective view which fractured | ruptured the lower leg cover by the centerline, (b) is a top view of a lower leg cover. The procedure for attaching the upper leg cover and the lower leg cover to the support leg is shown. (A) is a side view of the upper leg cover with the upper locking claw being locked to the upper locking part of the intermediate support leg. Side view of lower leg cover with downward latching claw engaged with lower locking part, (c) The thin part of the upper end of the lower leg cover is fitted to the concave step part of the upper leg cover and the elastic engagement claw is armed It is a side view of the state which elastically engaged with the engaging part of the part. It is a perspective view of the state which connected the beam rod to the support leg. The structure of the connection part of a support leg and a beam rod is shown, (a) is a partial exploded perspective view which shows the state before connecting a beam rod to a support leg, (b) is an enlarged front view of the front-end | tip part of a beam rod. It is sectional drawing of the state which connected the beam rod to the support leg. It is a fragmentary perspective view of the state which connected the beam rod from two directions to the support leg provided in an intermediate part. It is a fragmentary perspective view of a state where a beam rod is connected to a support leg provided at a corner portion. It is a fragmentary perspective view of the state which connected the beam rod from three directions to the support leg provided in an intermediate part.

  Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. 1 and 2 show a table according to the present invention, FIGS. 3 to 10 show the structure of a support leg, FIGS. 11 to 16 show the structure of connecting a beam rod to the support leg, and reference numeral 1 in the figure denotes a support leg, Reference numeral 2 denotes a connecting body, 3 denotes a top plate, 4 denotes an intermediate support leg, 5 denotes a lower support leg, and 6 denotes an upper support leg.

  The table according to the present invention has a structure in which a plurality of support legs 1,... Are connected by a connecting body 2 to support a top plate 3. The support leg 1 includes an intermediate support leg 4 whose upper part is inclined outward, and the intermediate support leg 4. Extending from the upper and lower ends of the support leg 4 to the same side, the support leg 4 has a lower support leg 5 inclined downward and an upper support leg 6 inclined upward, and a grounding part 7 that contacts the floor at the tip of the lower support leg 5 is provided. In addition, a support portion 8 that connects the top plate 3 to the tip of the upper support leg 6 is provided. And the table which concerns on this invention arrange | positions the lower support leg 5 and the upper support leg 6 of each support leg 1 so that it may orient outward, and mounts the lower surface of the top plate 3 on the support part 8 which this upper support leg 6 has. It is an attached structure.

  The table of this embodiment is configured to support the two top plates 3, 3 with six support legs 1,... The intermediate support leg 1 provided at the connecting portion of the top plates 3 and 3 has an angle of 90 degrees with respect to the long side of the top plate 3. The six support legs 1,... Are connected by the connecting body 2 to maintain the posture. The intermediate support leg 4 of the support leg 1 has a function of wiring cords drawn from the floor surface.

  Here, as shown in FIG. 2, the plurality of support legs 1,... Are connected to each other by a connecting body 2 formed of a plurality of members. The connecting body 2 includes a connecting arm 9 attached to the back side of the intermediate column 4 of each support leg 1, a connecting rod 10 for connecting them, and a beam rod 11 for connecting the distal ends of the upper support legs 6 and 6. ing. The four support legs 1,... At both ends screw the support portion 8 directly to the lower surface of the top plate 3, and screw the beam rod 11 to the lower surface of the top plate 3 in the other portions. The connecting body 2 connects the support legs 1 to each other to form a highly rigid leg structure, and supports the lower surface of the top plate 3 with the beam rod 11 to prevent the top plate 3 from bending. Work.

  More specifically, as shown in FIGS. 3 to 7, the support leg 1 is made by die casting of preferably light alloy such as aluminum, magnesium or zinc. The intermediate support leg 4, the lower support leg 5 and the upper support leg 6 of the support leg 1 may be separately manufactured and connected and integrated. However, if they are all integrally manufactured by die casting, the number of parts is reduced and the number of steps is reduced. Therefore, it is preferable. In the present embodiment, the support leg 1 is integrally formed by aluminum die casting.

  The connecting arm 9 constituting the connecting body 2 is screwed to the upper and lower intermediate portions of the back surface of the intermediate supporting leg 4, and the connecting arms 9, 9 of the adjacent supporting legs 1, 1 similarly constitute the connecting body 2. The end portion to be connected is screwed to a connecting rod 10 having a T shape. In the connecting rod 10, a short sub pipe 10B is welded to the end of the long main pipe 10A so as to have a T shape in a plan view, and the short sub pipe 10B is formed in a cross shape in a plan view at an intermediate portion. The connecting arm 9 can be screwed to both ends of the sub pipe 10B. By changing the lengths of the main pipe 10A and the sub pipe 10B of the connecting rod 10, it is possible to cope with tables of various sizes. The length of the main pipe 10A corresponds to the length of the table in the longitudinal direction, and the length of the sub pipe 10B is determined corresponding to the depth of the table. If a plurality of types of connecting rods 10 are prepared in advance, a plurality of types of tables can be configured in combination with the top plate 3 having a different shape.

  Specifically, as shown in FIG. 4, the angle α of the intermediate support leg 4 with respect to the vertical line V is set to 5 to 15 degrees, the angle β of the lower support leg 5 with respect to the horizontal line H1 is set to 5 to 15 degrees, and the upper support leg is set. It is preferable to set the angle γ with respect to the horizontal line H2 of 6 to 5 to 15 degrees. Here, the horizontal line H1 corresponds to the floor surface, and the horizontal line H2 corresponds to the top plate 3. Moreover, it is preferable to set the angle δ formed by the intermediate support leg 4 and the lower support leg 5 to 85 to 95 degrees. And it is preferable to set the distance h of the lower end part of the said intermediate support leg 4 or the rear-end part of the said lower support leg 5, and the floor surface H1 to 70-100 mm. In this embodiment, α = 10 degrees, β = 10 degrees, γ = 10 degrees, δ = 90 degrees, and h = 83 mm.

  First, the angle α of the intermediate support leg 4 with respect to the vertical line V corresponds to the inclination of a straight line connecting a knee and a toe of a person who naturally sits on a chair ergonomically. By setting the intermediate support leg 4 so that the upper part is inclined outward, the foot insertion space under the top board 3 can be ergonomically widened and psychologically wide. Since the intermediate support leg 4 is inclined, the front and rear intermediate support legs 4 are attached even when the connecting arm 9 is attached and the front and rear support legs 1 and 1 are connected to each other through the sub pipe 10B of the connecting rod 10. A moderate space is created between the four, and there is no clogged design, resulting in a leg unit with a novel design.

  Further, the angle β of the lower support leg 5 with respect to the horizontal line H1 is optimally set so that the distance h between the lower end portion of the intermediate support leg 4 or the rear end portion of the lower support leg 5 and the floor surface H1 becomes an appropriate value. ing. As shown in FIG. 2, the lower support leg 5 and the upper support leg 6 of the support leg 1 are disposed outward at an angle of about 45 degrees with respect to the side edge of the rectangular top plate 3. And, when sitting on the long side or the short side of the top plate 3, it is natural that the toes of both feet face in a slightly opening direction, and the toes are the lower support legs of the support leg 1 at the back of the foot setting space. However, when the distance h takes an appropriate value, the toes do not interfere with the lower support leg 5 because they enter the lower part of the rear part of the lower support leg 5.

  More specifically, as shown in FIGS. 3 to 7, the support leg 1 is formed with a vertical groove 12 for wiring cords along the back side of the intermediate support leg 4, and is formed in the upper and lower intermediate portions of the vertical groove 12. The base end 9A of the connecting arm 9 constituting the connecting body 2 is connected in a buried state without blocking the vertical groove 12, and the vertical groove 12 is covered at the upper and lower portions with the connecting arm 9 as a boundary. A synthetic resin upper leg cover 13 and lower leg cover 14 are detachably attached.

  Specifically, as shown in FIGS. 5 to 7, a wide mounting groove portion 15 is formed in the upper and lower intermediate portions of the vertical groove 12, and a base end portion 9 </ b> A of the connecting arm 9 is formed inside the mounting groove portion 15. Is attached, the arm portion 9B of the connecting arm 9 is positioned at the center of the back surface of the intermediate support leg 4, and the bypass portion 16 of the longitudinal groove 12 is formed on the side of the arm portion 9B. As shown in FIGS. 3 to 7, the vertical groove 12 is formed over the entire vertical length of the intermediate support leg 4, and on the back side excluding the upper and lower ends of the intermediate support leg 4, Concave portions 17 are formed on both sides, and the upper leg cover 13 and the lower leg cover 14 are fitted into the concave portion 17 so as to be smoothly continuous with the outer surface of the intermediate support leg 4. In the present embodiment, a cylindrical outer shape is formed with the upper leg cover 13 and the lower leg cover 14 attached to the intermediate support leg 4.

  5 to 9, notches 18 and 19 for receiving the arm portion 9B of the connecting arm 9 are formed at the lower end of the upper leg cover 13 and the upper end of the lower leg cover 14, and the upper leg cover The concave step portion 20 is formed along the lower edge surface side of the lower leg cover 13, the thin wall portion 21 is formed along the upper edge of the lower leg cover 14, and the upper leg cover 13 is formed. One of the upper locking claws 22 and 22 projecting in parallel with the rear surface of the upper end of the upper locking portion is locked to upper locking portions 23 and 23 provided on both side walls in the longitudinal groove 12 (see FIG. 10A). The downward locking claws 24, 24 projecting in parallel to the back surface of the lower end of the lower leg cover 14 are locked to the lower locking portion 25 provided in the longitudinal groove 12 (see FIG. 10B). The thin portion 21 of the lower leg cover 14 is fitted on the concave step portion 20 of the upper leg cover 13. In this state, the elastic engagement claw 26 protruding from the back surface of the upper end portion of the lower leg cover 14 is elastically engaged with and held by an engagement portion 27 provided at the base portion of the arm portion 9B (see FIG. 10 (c)).

  More specifically, the concave portion 17 of the intermediate support leg 4 has a curved surface so that the back surface of the semi-cylindrical upper leg cover 13 is joined to the lower leg cover 14. The corresponding portion is curved so that the back surface of the semi-cylindrical lower leg cover 14 is joined along the edge of the vertical groove 12, and deep concave portions 28, 28 are formed on the outer side thereof. Both ribs 29, 29 formed on the back surface in a direction perpendicular to the longitudinal direction are fitted so as to sandwich the side walls of the recessed portions 28, 28. The upper locking claws 22 and 22 of the upper leg cover 13 have a space between them, and cords can be passed through the space even when locked to the upper locking portions 23 and 23 in the vertical groove 12. it can. Similarly, the downward locking claws 24, 24 of the lower leg cover 14 have a space between them, and cords can be passed through the space even when locked to the lower locking portion 25 in the longitudinal groove 12. it can. An elastic engagement claw 26 having a substantially U-shaped cross section provided below the cutout portion 19 of the lower leg cover 14 is formed by forming a triangular claw on the upper surface of the elastic piece, and the base of the arm portion 9B. It is adapted to be elastically engaged with an engaging portion 27 made of a protrusion provided on the lower surface side.

  When the lower leg cover 14 is to be removed, it is extended to the distal end portion of the elastic piece of the elastic engagement claw 26 and has a knob piece 30 that appears from the notch 19 to the front side and is engaged with the engagement portion 27. Release the match. If the lower leg cover 14 is removed, the lower end of the upper leg cover 13 can be easily pressed by the upper end of the lower leg cover 14, so that the upper leg cover 13 can be easily removed.

  With the upper leg cover 13 and the lower leg cover 14 removed from the intermediate support leg 4 and the vertical groove 12 exposed, cords such as a power cord and a signal cord are provided from the access floor outlet near the specific support leg 1. It is pulled out and pulled out from the upper end through the vertical groove 12 from the lower end of the intermediate support leg 4, but at the position of the arm portion 9 </ b> B of the connecting arm 9, the wiring is made through the bypass portion 16 on its side. Then, the upper leg cover 13 and the lower leg cover 14 are attached to the intermediate support leg 4 as described above. Here, since the rear portion of the lower support leg 5 is floating from the floor surface, it is easy to route the cords drawn out from the appropriate place on the floor surface. For example, when a 50 cm square tile carpet is laid on the floor, the cords are often pulled out at the corners and edges of the tile carpet. It is necessary to hide the cord under the support leg 5 or to route the cords across the lower support leg 5. Further, the cords wired to the lower surface of the top plate 3 are routed under the top plate by attaching a hook to the connecting body 2 such as the beam rod 11 on the lower surface of the top plate 3 so that the top plate 3 is moved from a predetermined position. Is routed on the top surface of the top plate 3 by bypassing the edge of the top plate 3. Alternatively, it is also possible to provide a duct opening (not shown) in the top plate 3 and draw it out from the duct opening to the upper surface.

  Next, the structure for connecting the support leg 1 to the connecting body 2 will be described in more detail. The support legs 1,... Positioned at the four corners on both sides of the top plate 3 are attached at an angle of about 45 degrees with respect to the long side of the top plate 3, and the support legs 1, 1 positioned in the middle are 90 degrees with respect to the long side. Install at an angle. In that case, the end and the middle are different in the angle of the arm portion 9B of the connecting arm 9. Further, since the connecting arms 9 and 9 attached to the front and rear support legs 1 and 1 at the end are in a mirror image relationship, those having different shapes are used. The connection angle of the beam rod 11 connected to the tip of the upper support leg 6 of the support leg 1 can be changed according to the position of the support leg 1. In this embodiment, all of the support legs 1 have the same shape, and therefore, a connecting portion 31 constituting multidirectional connecting means A provided at the tip of the upper support leg 6 in order to connect the beam rod 11 at a predetermined angle. Is symmetrical with respect to the center line.

  As shown in FIGS. 5 and 11 to 14, the multidirectional connecting means A includes a connecting portion 31 provided at the distal end portion of the upper support leg 6 and a bracket 32 provided at the distal end portion of the beam rod 11. It is configured. The connecting portion 31 is continuously formed on the base end side of the support portion 8 of the upper support leg 6, and a locking cylinder portion 33 at the center and a positioning engagement provided on the inner surface of the locking cylinder portion 33. A plurality of pairs are provided radially with respect to the center of the locking cylinder portion 33, with the mating recess 34, a mounting hole 35 provided around the locking cylinder portion 33 and a concave groove 36 for positioning. That is, the pair of the engagement recess 34, the attachment hole 35, and the recess 36 is provided at five positions of 0 degrees, 45 degrees, and 90 degrees symmetrically with respect to the center line.

  The engaging recess 34 is periodically formed in a gear shape on the inner peripheral surface of the locking cylinder portion 33. A mounting surface 37 for mounting the bracket 32 is formed on the outer periphery of the base portion of the locking cylinder portion 33. The mounting surface 37 is provided with the mounting hole 35, and the mounting hole 35 is locked with the mounting hole 35. The concave groove 36 is formed between the cylindrical portion 33 and the base portion. Here, the mounting hole 35 is a pilot hole for screwing the screw 38, and a tap is cut. The groove 36 has a V-shaped cross section. On the other hand, the bracket 32 provided at the distal end portion of the beam rod 11 has an engagement piece 39 which is engaged with the inside of the engagement tube portion 33 at the distal end, and the engagement recess 34 inside the engagement piece 39. An engaging convex portion 40 to be engaged is formed, a through hole 41 is formed at a position corresponding to the mounting hole 35 in the main body portion, and a triangular dowel 42 engaging with the concave groove 36 is provided on the lower surface. ing. An upper portion of the through hole 41 forms a counterbore 43 that receives the head of the screw 38. Further, the front end of the bracket 32 is cut at both sides by 45 degrees to form a chamfered portion 44 to have a substantially right triangle shape in a plan view. 39 can be locked.

  Then, the beam rod 11 is engaged with the engagement tube portion 33 of the upper support leg 6 with the engagement piece 39 at the tip of the bracket 32 at an angle of 45 degrees or 90 degrees with respect to the center line of the support leg 1. The engaging convex portion 40 is engaged with the engaging concave portion 34 on the inner surface of the locking cylinder portion 33, and the triangular dowel 42 on the lower surface of the bracket 32 is engaged with the concave groove 36 on the mounting surface 37 for positioning. To do. In this state, since the positions of the through hole 41 and the mounting hole 35 coincide with each other, a screw 38 inserted from above into the through hole 41 is screwed into the mounting hole 35 to be connected. Here, the mounting surface 37 is formed at a position stepped down by the vertical dimension of the beam rod 11 with respect to the upper surface of the support portion 8, and the bracket 32 of the beam rod 11 is attached to the mounting surface 37 as described above. In this state, the upper surface of the support portion 8 and the upper surface of the beam rod 11 are flush with each other and can be joined to the lower surface of the top plate 3 at the same time. By selecting and engaging a pair of engagement recesses 34 and recesses 36 of the upper support leg 6 of the support leg 1 that engages the engagement protrusion 40 and the triangular dowel 42 of the bracket 32 of the beam rod 11, the beam The angle between the flange 11 and the center line of the support leg 1 is determined, and the screw 38 is passed through the hole 41 and screwed into the mounting hole 35, so that the connection arm 9 and the connection rod 10 are connected together. It is possible to accurately maintain the posture during the assembly of the support legs 1.

  The support legs 1 located at the four corners of the top plate 3 have an angle of 45 degrees with respect to the long side of the top plate 3. The beam rod 11 provided parallel to the side is connected at an angle of 45 degrees. On the other hand, since the center line of the support leg 1 located in the middle is at an angle of 90 degrees with respect to the long side of the top plate 3, it is parallel to the long side of the top plate 3 as shown in FIG. 14. The beam rod 11 provided is connected at an angle of 90 degrees, and the beam rods 11 on both sides are connected linearly via the support leg 1.

  When the distance between the support legs 1 and 1 positioned at the front and rear of the end of the top plate 3 is wide, that is, when the depth of the top plate 3 is wide, the upper support legs 6 and 6 of the front and rear support legs 1 and 1 are connected to each other. In some cases, the beam rods 11 are connected to each other. In this case, the two beam rods 11 and 11 are connected to each other at right angles via the support legs 1 as shown in FIG. In such a case, the upper support legs 6 and 6 of the front and rear support legs 1 and 1 positioned in the middle may also be connected to each other by the beam rod 11, and in that case, as shown in FIG. The connection is made by using the engaging recess 34, the mounting hole 35, and the recessed groove 36 at the 0 degree position, that is, on the center line.

  As shown in FIG. 13, the beam rod 11 is formed by a square pipe, and a fitting portion 45 of the bracket 32 is fitted to an end portion thereof, and both are connected by screws 46 from above. Then, the lower surface of the top plate 3 is placed on the support portion 8 of the upper support leg 6 of each support leg 1,... And is placed on each beam rod 11,. The support portion 8 is formed with a through hole 47 penetrating vertically in the central portion, and protrusions 48 are provided on the upper surface. A hole for engaging the projections 48 and 48 and a hole for receiving the head of the screw 46 are formed on the back surface of the top plate 3, and the support legs 1. A screw threaded through the hole 47 from below is screwed onto the lower surface of the top plate 3, and an appropriate position of the beam rod 11 is screwed to the top plate 3 from below. As shown in FIGS. 12 and 13, a through hole 49 is formed so as to vertically penetrate the fitting portion 45 of the bracket 32 and the beam rod 11, and screws passed through the through hole 49 from below are attached to the top plate 3. Threaded onto the lower surface of

1 support leg, 2 connector,
3 Top plate, 4 Intermediate support legs,
5 Lower support legs, 6 Upper support legs,
7 Grounding section, 8 Support section,
9 connecting arm, 9A proximal end,
9B arm part, 10 connecting rod,
10A main pipe, 10B sub pipe,
11 Beam rod, 12 Longitudinal groove,
13 Upper leg cover, 14 Lower leg cover,
15 mounting groove, 16 detour,
17 recess, 18 notch,
19 notch, 20 recessed step,
21 Thin-walled portion, 22 Upward locking claw,
23 upper locking part, 24 downward locking claw,
25 lower locking part, 26 elastic engagement claw,
27 engaging portion, 28 recessed portion,
29 ribs, 30 knob pieces,
31 connecting part, 32 bracket,
33 locking cylinder, 34 engaging recess,
35 mounting holes, 36 concave grooves,
37 mounting surface, 38 screws,
39 locking pieces, 40 engaging projections,
41 through holes, 42 triangular dowels,
43 counterbore part, 44 chamfered part,
45 fitting part, 46 screw,
47 through holes, 48 protrusions,
49 through holes,
V vertical line,
H1 horizon (floor),
H2 horizontal line (top plate),
α The angle between the vertical line V and the intermediate support leg,
β The angle between the horizontal line H1 and the lower support leg,
γ Angle between horizon H2 and upper support leg,
δ Angle between middle and lower support legs,
h Distance between the horizontal line (floor surface) H1 and the lower end of the intermediate support leg.

Claims (5)

  In a table that supports a top plate by connecting a plurality of support legs with a connecting body, the support leg has an upper support leg that extends to the upper end portion of the intermediate support leg, and supports the top plate provided at the tip of the upper support leg. A table top support device for a table, wherein a connecting portion provided on a base end side of the supporting portion and a bracket provided on a distal end portion of a beam rod constituting the connecting body are connected so that the angle can be changed.   In a table that supports a top plate by connecting a plurality of support legs with a connecting body, the support legs extend from the upper and lower ends of the intermediate support legs to the same side, respectively, and a downwardly inclined lower support leg and an upwardly inclined upper support leg; And a grounding portion for grounding to the floor surface is provided at the distal end portion of the lower support leg, and a support portion for connecting the top plate is provided at the distal end portion of the upper support leg, and the base end side of the support portion of the upper support leg The table top plate support device, wherein the connecting portion provided on the top and the bracket provided on the tip of the beam rod constituting the connecting body are connected so that the angle can be changed.   The connecting portion is formed continuously on the base end side of the support portion of the upper support leg, and includes a locking cylinder portion at the center, an engaging recess for positioning provided on the inner surface of the locking cylinder portion, A plurality of pairs of mounting holes and positioning concave grooves provided around the locking cylinder part are provided radially with respect to the center of the locking cylinder part, and the bracket is located at the tip of the locking cylinder part. A locking piece to be locked, and an engaging convex portion to be engaged with the engaging concave portion are formed inside the locking piece, and a through hole is formed in the body portion at a position corresponding to the mounting hole. The table top support device according to claim 2, wherein a dowel that engages with the concave groove is provided on the lower surface, and a screw that passes through the through hole is screwed into the mounting hole.   An attachment surface is formed at a position stepped down with respect to the upper surface of the support portion continuously on the base end side of the support portion of the upper support leg, and the attachment hole is provided with the attachment hole. 4. The table top support device according to claim 3, wherein the concave groove is formed between the base and the base of the locking cylinder.   A pair of the engaging concave portion, the mounting hole and the concave groove is provided symmetrically with respect to the center line of the upper support leg at rotation angle positions of 0 degree, 45 degrees and 90 degrees with respect to the center of the locking cylinder part. The table top support apparatus according to claim 3 or 4.

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