JP2009095422A - Fixture of table leg, and table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the deterioration of aesthetic appearance by correcting mounting position error of leg bodies relative to a table top board. <P>SOLUTION: Each top board side metal fitting is separately formed of a receiving metal fitting 1 and a clamping block 3 disposed movably along the upper surface of the receiving metal fitting 1; in the clamping block 3, an upper mounting hole 17 is formed in which the head part 12 of a leg side metal fitting 2 is fitted, and a screw hole 18a, into which a fixing screw B1 is threaded to be engaged, is formed obliquely through the upper part mounting hole 17; and when the fixing screw B1 is threaded to be secured in the screw hole 18a of the clamping block 3 from below the receiving metal fitting 1 to abut on a locking slope face 12a of the head part 12, in a state where the head part 12 of the leg side metal fitting 2 is fitted into the upper mounting hole 17 formed in the clamping block 3 through a lower mounting hole 7 formed in the receiving metal fitting 1, the receiving metal fitting 1 is clamped and fixed between the clamping block 3 in a movement-adjusting position in the upper surface of the receiving metal fitting 1 and the flange part 10 of the leg side metal fitting 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a table leg attachment for connecting a top plate and a leg, and a table using the attachment.

  Previously, the present applicant has developed a mounting bracket for a table leg shown in Patent Documents 1 and 2 below. This mounting bracket includes a top plate side metal fitting as a receiver fitted and fixed in a recess formed on the lower surface of the top plate, and a leg side metal fitting fixed to the upper portion of the leg body. By fitting the upper parts of the side metal parts and connecting both metal parts via attachment screws, the legs are connected and fixed to the lower part of the top plate via the attachment metal parts.

According to these mounting brackets, legs can be directly attached to the top plate, so there is no need for a complicated mounting structure such as attaching the curtain plate to the outer periphery of the lower surface of the conventional top plate and attaching the legs to its four corners. There is an advantage that a simple structure can be obtained structurally and in design.
Japanese Utility Model Publication No.4-1368 Japanese Patent No. 2846597

  By the way, as a recent trend in this type of table, as an example, when chamfering processing such as R-surface shape is performed at the four corners of the top plate, and a part of the body such as the head collides with the corner of the top plate In addition to safety, the new design with soft curved surface is obtained.

  In accordance with the chamfering of the corner, the leg is also required to have a round bar shape with a diameter equal to the R-surface shape, and to a vertical shape that is continuous to the bottom of the corner and substantially linear. ing.

However, if there is a processing error in the positions of the mounting holes for embedding the metal fittings with respect to the four corners of the lower surface of the top plate, the upper end of the leg may protrude outward from the corner of the top plate. In such a case, even if it protrudes slightly, it does not look good, and it is determined as a defective product, which causes a decrease in yield at the finishing stage.Therefore, it is necessary to increase the accuracy of the processing position of the mounting hole of the receiving bracket. there were.
Such a problem is the same as that when a prismatic leg is fixed along the periphery of the bottom of the square top plate.

  The present invention solves the above-described problems. The object of the present invention is to correct the mounting position error with the fixture even if a slight error has occurred in the processing position of the mounting hole for embedding. Provided is a table leg mounting tool and a table which can be mounted and adjusted at positions substantially coincident with the periphery of the lower part of the plate and prevent appearance deterioration.

In order to achieve the above-mentioned object, the table leg mounting tool according to the present invention includes a top plate side metal fitting attached to the lower surface of the table top plate and an upper part of the table leg as shown in the embodiment of the figure. The head part protruding from the upper surface of the leg side bracket is fitted into the mounting hole opened on the lower surface of the top plate side metal fitting, and the lower surface of the top plate side metal fitting is connected to the mounting hole. The fixing screw is screwed into the screw hole penetrating diagonally, the tip of the fixing screw is brought into contact with the locking slope formed on the outer wall of the head of the leg side bracket, and the leg side bracket is attached to the mounting hole of the top plate side bracket. In the table leg fixture configured to support and fix to,
The top plate side metal fitting is separated and formed by a receiving metal fitting 1 and a holding block 3 that is movably arranged along the upper surface of the receiving metal fitting 1, and the holding block 3 includes the head 12 of the leg side metal fitting 2. The upper mounting hole 17 is formed, and the screw hole 18a into which the fixing screw B1 is screwed is formed obliquely through the upper mounting hole 17,
A flange portion 10 is integrally formed on the outer periphery of the base portion of the head portion 12 of the leg side metal fitting 2, and the head portion 12 of the leg side metal fitting 2 is passed through the lower mounting hole 7 formed in the receiving metal fitting 1. In the state where the upper fixing hole 17 formed in the holding block 3 is fitted, the fixing screw B1 is screwed into the screw hole 18a of the holding block 3 from below the receiving metal fitting 1 to thereby fix the head. The receiving metal fitting 1 is sandwiched and fixed between the holding block 3 and the flange portion 10 which are in the movement adjustment position on the upper surface of the receiving metal fitting 1 when they are brought into contact with the twelve locking slopes 12a. It is characterized by that.

The receiving metal fitting 1 is formed in a large-diameter disk shape, and a circular upper concave portion 6a is formed substantially concentrically on the upper surface thereof, and the periphery of the upper concave portion 6a is formed as a circular flange-shaped attachment portion 4 so as to be plural. The upper mounting hole 5a is formed, and the lower mounting hole 7 having a large diameter is formed so as to penetrate the upper recessed portion 6a so that the head 12 in the inserted state can be adjusted. The sandwiching block 3 is formed in the shape of a small short cylindrical block having a small diameter that can be moved and adjusted in the upper recessed portion 6a, and the head 12 is prevented from rotating from below in the sandwiching block 3. The upper mounting hole 17 to be fitted is formed, and a screw block portion 18 in which the screw hole 18a is formed is integrally formed at the bottom of the sandwiching block 3, and the screw block portion 18 is formed in the lower mounting hole 7. It is inserted in the movement adjustable There.
The metal fitting 1 may have a shape other than the large-diameter disk shape, such as a square shape such as a square, a triangle, or a polygon, or an elliptical shape.

  The flange portion 10 of the leg-side metal fitting 2 has a substantially semicircular outer shape partially formed with a notch recess 10a, and a circular lower concave recess portion 6b is formed concentrically on the lower surface of the receiving metal fitting 1. In the state where the flange portion 10 is fitted in the lower recessed portion 6b, the fixing screw B1 is inserted into the screw hole 18a of the sandwiching block 3 through the notch recessed portion 10a and the receiving metal fitting 1 below. The end of the fixing screw B1 is screwed and brought into contact with the locking slope 12a of the head 12 located on the upper surface of the receiving metal fitting 1.

  The head 12 is formed in a short prism shape, and the upper mounting hole 17 formed in the holding block 3 is formed in a square hole in which the head 12 is fitted in a non-rotating state, and the lower mounting hole 7 Is formed in a rectangular shape in which the head portion 12 in the inserted state and the screw block portion 18 of the holding block 3 can be adjusted in the longitudinal direction. A concave groove-shaped inclined guide surface 7a is formed so as to be continuous in the direction, and the fixing screw B1 is screwed into the screw hole 18a of the screw block portion 18 through the lower side of the inclined guide surface 7a.

  The table according to the present invention is a table in which legs are attached to appropriate positions on the lower surface of the table top plate using the above-described fixtures, and the legs are fixed to the lower surface of the top plate so that the mounting position thereof can be adjusted. It is characterized by being.

  A procedure for attaching the legs to the lower surface of the table top plate using the fixture will be described. A mounting hole 31 is formed on the lower surface of the top plate 30. The receiving metal fitting 1 is fitted and fixed in the lower large-diameter portion 31a of the mounting hole 31, and the holding block 3 is fitted and held in the lower small-diameter portion 31b. The lower small-diameter portion 31b has a larger diameter than the sandwiching block 3, and the sandwiching block 3 can be moved and adjusted within the small-diameter portion 31b.

  The leg-side metal fitting 2 is attached and fixed to the upper end surface of the leg body 20, and the head 12 of the leg-side metal fitting 2 is received through the lower attachment hole 7 of the metal fitting 1 and fitted into the upper attachment hole 17 of the holding block 3. In this state, the horizontal position of the leg 20 with respect to the top board 30 is adjusted by sliding movement. At this time, the head 12 of the leg-side metal fitting 2 attached to the leg body 20 is moved and adjusted in the lateral direction in the lower attachment hole 7 of the receiving metal fitting 1 together with the holding block 3. When the head 12 is in a predetermined movement adjustment position, the fixing screw B1 screwed into the screw hole 18a provided in the screw block portion 18 of the clamping block 3 is screwed and brought into contact with the locking slope 12a. . As a result, the head 12 of the leg side metal fitting 2 is pressed against the inner wall surface of the upper mounting hole 17 of the clamping block 3 so that the head 12 is pushed up, and the receiving metal fitting is interposed between the flange portion 10 of the leg side metal fitting 2 and the clamping block 3. 1 is clamped and fixed, and the leg 20 integrated with the leg-side metal fitting 2 is fixed to a predetermined adjustment position of the top plate 30 to which the receiving metal fitting 1 is fixed.

  According to the present invention, in a state where the fixing screw B1 is loosened, the receiving metal fitting 1 constituting the top plate side metal fitting fixed to the table top plate and the holding block 3 to which the leg body is fixed are relatively movable. Yes, with the fixing screw B1 tightened, the receiving plate 1 on the top plate side is nipped and fixed between the holding block 3 and the flange portion 10 of the leg side fitting at the upper end of the leg. It can be fixed to the lower surface of the top plate so that the movement can be adjusted, and the appearance can be prevented from being deteriorated due to an installation position error or the like.

  Further, according to the present invention, the fixing screw B1 can be screwed into the screw hole 18a of the screw block portion 18 through the lower mounting hole 7, so that it is possible to adjust the movement of the leg from the top plate lower part in the final assembly process. .

  Further, according to the present invention, the leg body can be slide-adjusted together with the holding block 3 in the upper recessed portion 6a formed in the metal fitting 1, and fine adjustment is possible.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 5 show a fixture according to the present invention and a structure for attaching a table top and a leg using the same.

  In FIGS. 1 and 2, the fixture includes a large-diameter disk-shaped bracket 1 that is embedded and fixed on the lower surface of the top plate, which will be described later, a leg-side bracket 2 that is embedded and fixed on the upper portion of the leg 20, and a bracket. 1 is divided into three parts, ie, a short-column-shaped holding block 3 for position adjustment that is screw-coupled to the leg-side metal fitting 2. The bracket 1 and the clamping block 3 constitute a top plate side bracket. Each of these members (receiving bracket 1, leg-side bracket 2, sandwiching block 3) is made of a metal die-cast molded body or a hard resin molded body, which is omitted in the figure, but after securing the necessary member strength, Each part is appropriately cut out.

  The receiving metal fitting 1 is formed concentrically on the inner side of the upper surface of the mounting portion 4 and a disc-shaped mounting portion 4 having a predetermined thickness in which a plurality of screw mounting holes 5 through which the wood screws B are inserted from the lower surface side are formed. A shallow groove-like upper recessed portion 6a serving as a seating surface, and a deep groove-like lower recessed portion 6b that is concentrically formed on the lower surface of the mounting portion 4 and fits a flange portion 10 to be described later of the leg-side metal fitting 2. The upper and lower recessed portions 6a and 6b have a lower mounting hole 7 formed in a substantially rectangular shape in the upper and lower direction, and one end in the longitudinal direction of the lower mounting hole 7 passes through the inclined guide 7a. It communicates with the outer periphery of the lower edge.

  The leg-side metal fitting 2 is installed at the upper end of the leg body 20 and protrudes into the above-described flange portion 10 having a pair of mounting holes 11 through which the wood screw B is inserted and the upper eccentric position of the flange portion 10. A prism-shaped head portion 12 is provided, and an anchor bolt portion 14 having a required length is provided below the flange portion 10 so as to be coaxial with the head portion 12.

  The flange portion 10 has a substantially semicircular shape, and the center of the straight portion forms a notch recess 10 a that is flush with the outer periphery of the head 12 and the anchor bolt portion 14.

  On the surface of the head 12 on the side of the notched recess 10a, a locking slope 12a is formed that inclines obliquely toward the back, and the tip of the fixing screw B1 made of a potato screw or the like abuts at a predetermined inclination. It is supposed to be.

  The anchor bolt portion 14 has a substantially oval cross section in which both sides of a cylinder are cut out. A male screw 14a is engraved on both sides of the circular arc surface, and a pair of upper and lower insertions intersecting each other by 90 ° at an appropriate position on the side surface. As shown in FIG. 2, the bolt portion 14 is screwed and fixed in a screw hole 21 formed at the upper center of the leg body 20, and the flange portion 10 is formed on the upper surface of the leg body 20. In the positioned state, the pin insertion hole 15 coincides with a mounting hole 23 formed through the side surface of the leg 20.

Accordingly, the anchor bolt portion 14 is prevented from being pulled out by driving the pin 24 from the side surface of the leg body 20 toward the mounting hole 23, and then the wood screw B is screwed into the flange portion 10 and connected to the top portion of the leg body 20. Thus, the leg-side metal fitting 2 is completely fixed on the leg body 20 with the flange portion 10 and the head portion 12 protruding from the upper surface. 2 is a pilot hole for screwing the wood screw B formed in the upper surface of the leg 20.
Further, the mounting directionality of the legs 20 is determined by the driving of the pins 24 and the screwing of the wood screws B. Such attachment directionality of the leg 20 is particularly important when the leg 20 is a square leg having a square cross section.

  The clamping block 13 has the same diameter as the flange portion 10 and the circular arc surface, and an upper mounting hole 17 as a square hole-like engagement hole that fits the head portion 12 is vertically formed in the eccentric position. In addition, a screw block portion 18 that is guided to move along the longitudinal direction of the lower mounting hole 7 is integrally formed at a lower portion of the surface facing the upper mounting hole 17. A screw hole 18 a that is inclined toward the top and communicates with the upper mounting hole 17 at the tip is formed.

  The inclination angle of the screw hole 18a is equal to the inclination angle of the inclined guide surface 7a of the receiving metal fitting 1. In particular, as shown in FIG. 2, the fixing screw B1 is screwed into the screw hole 18a, the tip thereof is brought into contact with the locking inclined surface 12a of the head 12, and the tightening pressure is applied by applying a tightening pressure. By applying a force in the vertical direction, the upper and lower sides of the receiving metal fitting 1 are sandwiched between the flange portion 10 and the sandwiching block 3.

  3 to 5 show a mounting structure between the top plate 30 and the leg body 20 using the above mounting tool. 3 and 4, the top plate 30 has a required thickness, and a corner portion thereof is R-surface processed with a curvature radius substantially the same as the diameter of the leg body 20.

  A mounting hole 31 having a convex cross section is formed in two steps in the vicinity of the corner on the lower surface of the top plate 30. The lower large-diameter portion 31a of the mounting hole 31 is used for fitting and fixing the mounting portion 4 of the bracket 1 as shown in particular in an enlarged view in FIG. The receiving metal fitting 1 is fixed via. The small-diameter portion 31b is for loosely fitting the holding block 2 along the lower mounting hole 7, and is concentric with the upper portion of the large-diameter portion 31a, and the inner diameters of the upper and lower groove portions 6a and 6b. Same inner diameter.

  In attaching the receiving metal fitting 1, the clamping block 3 is previously installed on the upper recessed portion 6 a, and the screw block portion 8 is fitted into the lower mounting hole 7 in a loosely fitting state, and then the top plate 3 is attached to each side. The lower mounting hole 7 is disposed so that the longitudinal direction of the lower mounting hole 7 has a predetermined inclination such as 45 °, and the inclined guide 7a of the lower mounting hole 7 is positioned on the side of the corner, and each wood screw B is screwed into the top plate 30. Accordingly, the receiving metal fitting 1 is fixed to the lower surface of the top plate 30 in a flush manner.

  In this state, the leg body 20 is attached to the lower surface of the top board 30. At the time of attachment, the upper end of the leg 20 to which the leg-side metal fitting 2 is fixed in advance is inserted into the lower surface of the receiving metal fitting 1, the flange part 4 is fitted into the lower-side recessed part 6 b, and further protrudes upward through the attachment hole 7. After inserting the head 12 into the upper mounting hole 17 of the clamping block 3, the fixing screw B1 is tightened with a hexagon wrench 32 inserted obliquely upward from the upper edge of the leg 20 and the gap between the inclined guides 7a. Then, the receiving metal fitting 1 is fixed in a clamped state between the flange portion 10 of the leg-side metal fitting 2 and the holding block, and the attachment of the leg body 20 to the lower surface of the corner of the top plate 30 is completed as shown in FIG. To do.

  At this time, in order to adjust the mounting position of the leg 20 with respect to the top plate 30, as shown in FIGS. 4 (a) and 4 (b), the leg 20 is moved with the fixing screw B1 loosened. The maximum movement adjustment width is in a range of d × 2 depending on the diameter difference d between the diameter of the flange portion 10 of the holding block and the leg-side metal fitting 2 and each of the groove portions 6a and 6b by the operation of approaching or moving away from the 30 corner portions. Thus, the mounting position can be adjusted. After the position adjustment, the final assembly is completed by tightening the fixing screw B so that the side surface of the leg body is substantially aligned with the corner of the top plate 30. Note that the actual fixing and adjusting operations are performed with the lower surface of the top plate 30 on the upper side and the legs 20 inserted therein, so that the operations are reversed from the drawing.

  FIG. 5 shows an image at the time of adjustment. As shown by a broken line, when the leg 20 protrudes outward from the corner of the top plate 30, a part of the upper surface of the leg is visually observed. However, in this case, the leg 20 is moved and adjusted to the side of the corner of the top plate 30 to adjust the side surface of the leg 20 to the corner R surface as shown by the solid line. They can be matched and fit on the same straight line.

  In the above-described embodiment, when it is desired to increase the movement adjustment width d, the diameter difference between the upper and lower recessed portions 6a and 6b of the metal fitting 1 and the diameter of the flange portion 4 and the clamping block 3 should be increased. Of course. The movement adjustment width d can be about + -1 mm to 5 mm.

  Further, when the leg 20 has a large diameter and a sufficient gap cannot be taken between the upper side edge of the leg 20 and the inclined guide 7 a of the receiving metal 1, A notch or the like may be formed in advance at the facing position to secure a space for inserting the fixing screw B1 and the hexagon wrench 32.

  In the embodiment of the present invention, the leg body can be not only a round bar shape but also a square bar, a polygonal bar, or a plate leg. In addition, the table top plate can be applied not only to a square top plate having a rounded corner, but also to various top plates such as a round top plate or a modified top plate combining polygonal and round shapes.

(A)-(c) is the top view and side view which show the components structure of the fixture which concerns on this invention. It is a disassembled perspective view which shows the attachment relationship of each component in the fixture. It is sectional drawing containing the partially expanded part which shows the state which attached the top plate and the leg body via the fixture. (A), (b) is a plane sectional view which shows an adjustment state. It is a perspective view which shows the image at the time of the adjustment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Receiving metal fitting 2 Leg side metal fitting 3 Clamping block 4 Mounting part 5 Mounting hole 6a, 6b Upper and lower recessed part 7 Lower mounting hole 7a Inclination guide 10 Flange part 10a Notch recessed part 12 Head part 12a Locking slope 14 Bolt part 17 Upper part Mounting hole 18 Screw block portion 18a Screw hole 20 Leg 30 Top plate 31 Mounting hole 32 Hexagon wrench B1 Mounting screw

Claims (5)

It has a top plate side bracket that is attached to the bottom surface of the table top plate and a leg side bracket that is attached to the top of the table leg, and projects into the top surface of the leg side bracket through the mounting hole that opens in the bottom surface of the top plate side bracket. The fixing head is fitted, and a fixing screw is screwed into a screw hole that obliquely penetrates the mounting hole from the lower surface of the top plate side metal fitting, to the locking slope formed on the head outer wall of the leg side metal fitting. In the table leg mounting tool configured to abut the tip of the fixing screw and support and fix the leg side bracket to the mounting hole of the top plate side bracket,
The top plate side metal fitting is separated and formed by a receiving metal fitting (1) and a holding block (3) arranged so as to be movable along the upper surface of the receiving metal fitting (1). An upper mounting hole (17) into which the head (12) of the side metal fitting (2) is fitted is formed, and the screw hole (18a) into which the fixing screw (B1) is screwed is an upper mounting hole ( 17) is formed so as to penetrate diagonally with respect to
A flange portion (10) is integrally formed on the outer periphery of the base portion of the head portion (12) of the leg-side metal fitting (2),
The head (12) of the leg-side metal fitting (2) is fitted into the upper attachment hole (17) formed in the clamping block (3) through the lower attachment hole (7) formed in the receiving metal fitting (1). In this state, the fixing screw (B1) is screwed into the screw hole (18a) of the clamping block (3) from below the receiving metal fitting (1) to lock the head (12). When it is brought into contact with the inclined surface (12a), the metal fitting (1) is clamped between the clamping block (3) and the flange portion (10) at the movement adjustment position on the upper surface of the metal fitting (1). A fixture for table legs characterized by a fixed structure. The metal fitting (1) is formed in a large-diameter disk shape, and a circular upper concave portion (6a) is formed substantially concentrically on the upper surface thereof, and the upper concave portion (6a) is attached in a circular flange shape. A plurality of mounting holes (5) are formed as the portion (4), and the head (12) in the inserted state is inserted into the upper recessed portion (6a) so that the movement of the head (12) can be adjusted. The lower mounting hole (7) is formed so as to penetrate therethrough, and the sandwiching block (3) is formed in a small-diameter substantially short cylindrical block shape that is placed so as to be movable and adjustable in the upper recessed portion (6a). The upper mounting hole (17) is formed in the holding block (3) so that the head (12) is fitted in a non-rotating state from below, and the screw is formed at the bottom of the holding block (3). The screw block portion (18) in which the hole (18a) is formed is formed so as to protrude integrally. Screw block portion (18) fitting table leg according to claim 1, characterized in that it is inserted moved adjustably to the lower mounting hole (7) in the. The flange part (10) of the leg-side metal fitting (2) has a substantially semicircular outer shape partially formed with a notch recess (10a), and is substantially concentric with the lower surface of the metal fitting (1). In a state where a circular lower recessed portion (6b) is formed and the flange portion (10) is fitted in the lower recessed portion (6b), the screw hole (18a) of the clamping block (3) The fixing screw (B1) is screwed through the notch recess (10a) and the lower part of the receiving metal fitting (1), and the tip of the fixing screw (B1) is located on the upper surface of the receiving metal fitting (1). The table leg mounting tool according to claim 1 or 2, wherein the table leg mounting tool is brought into contact with the locking slope (12a) of the portion (12). The head (12) is formed in a short rectangular column shape, and the upper mounting hole (17) formed in the clamping block (3) is formed in a square hole shape in which the head (12) is fitted in a non-rotating state. The lower mounting hole (7) is formed in a rectangular shape in which the head (12) in the inserted state and the screw block portion (18) of the clamping block (3) can be moved and adjusted in the longitudinal direction. A concave groove-shaped inclined guide surface (7a) is formed on the lower surface of the receiving metal fitting (1) so as to be continuous with the lower mounting hole (7) in the longitudinal direction, and the fixing screw (B1) is connected to the inclined guide surface. The table leg mounting tool according to claim 2 or 3, wherein the table leg mounting tool is screwed into the screw hole (18a) of the screw block portion (18) through the lower side of (7a). In the table which attached the leg to the lower surface of the top plate using the fixture in any one of Claims 1-4, it attaches to the upper part of the said top plate side metal fitting attached to the bottom face of the said top plate, and a leg The table is characterized in that the leg body is fixed to the lower surface of the top plate via the leg-side metal fitting so that the mounting position thereof can be adjusted.

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