JP5530615B2 - Furniture with a top plate - Google Patents

Description

  The present invention includes a top plate provided with a top plate provided on the lower surface with a downward hole that opens downward, and a leg body provided with a top plate support for receiving and supporting the lower surface of the top plate. Related to furniture with furniture.

  Conventionally, in this type of table, which is used at home or small offices, the user often performs the assembly work of the top plate and the legs, but for example, connecting a bolt or the like In the case of a user who is unfamiliar with the tightening work using the members, for example, if the user is used with insufficient tightening strength, there is a problem that the leg may come off during use, which is dangerous.

  Therefore, for example, it is possible to connect the leg to the top plate without using a connecting member such as a bolt. A fitting fixing hole having a receiving hole corresponding to the engaging bolt inserted into the engaged hole is provided, and an engaging bolt is inserted into the engaged hole. The fastening plate is rotated by lever operation in the state, and the head of the engagement bolt inserted in the engaged hole is engaged so that the leg is fixed to the lower surface of the top plate (For example, refer to Patent Document 1).

  Further, an engagement pin that can be inserted into an engaged groove formed as an engaged portion formed on the lower surface of the top plate protrudes on a disk provided rotatably at the upper end of the leg, and the engagement pin In some cases, the disc is rotated by operating the lever while the rod is inserted into the engaged groove, and the leg is connected to the lower surface of the top plate by engaging the head of the engaging pin with the engaged groove. (For example, refer to Patent Document 2).

JP-A-4-228908 (FIG. 1-3) Patent Registration No. 2885128 (Figs. 1 and 2)

  However, in the connecting devices described in Patent Documents 1 and 2, an engaging part (for example, an engaging pin in Patent Document 2) or an engaged part (for example, an engaging pin for connecting a leg to the top plate) Since the load applied to the engaging portion and the engaged portion is directly transmitted to the rotating mechanism that rotatably supports one of the engaged holes in Patent Document 1, the rotating mechanism is easily damaged. There was a problem.

  The present invention has been made paying attention to such problems, and it is possible to connect the legs firmly to the top plate with a simple operation without using a connecting member or the like. The purpose is to provide an attached table.

In order to solve the above-mentioned problem, the furniture with a top plate according to claim 1 of the present invention,
A furniture with a top plate, comprising: a top plate having a downward hole that opens downwardly on a lower surface; and a leg that has a top plate support that supports the lower surface of the top plate provided on the top. And
The top plate holder is
An engaging portion engageable with an engaged portion provided on the top plate;
A cam portion that can be fitted into the downward hole;
A pivot that faces the up and down direction to pivotally support the cam portion;
An operating portion for rotating the cam portion around the pivot;
With
When the cam portion is fitted in the downward hole, the cam portion is rotated around the pivot axis by the operation portion, whereby the top plate holder is horizontally oriented with respect to the lower surface of the top plate. The engaging portion is engaged with the engaged portion, and the leg body is connected to the top plate.
According to this feature, by operating the operating portion with the cam portion fitted in the downward hole, the cam portion rotates while being guided by the inner wall of the downward hole, and the pivot is pivoted in the downward hole. Since the top plate support provided with the pivot moves relative to the lower surface of the top plate in the horizontal direction and the engaging portion is engaged with the engaged portion. The leg can be easily connected to the top plate only by fitting the cam portion into the downward hole and operating the operation portion without using the portion.

The furniture with a top plate according to claim 2 of the present invention is the furniture with a top plate according to claim 1,
In the engaged state in which the engaging portion is engaged with the engaged portion, there is provided a restricting means for restricting the rotation of the cam portion in the downward hole.
According to this feature, in the engaged state, it is possible to prevent the cam portion from rotating backward and releasing the engagement between the engaging portion and the engaged portion.

The furniture with a top plate according to claim 3 of the present invention is the furniture with a top plate according to claim 2 ,
The downward hole is formed in a substantially rectangular shape composed of a pair of short sides and a pair of long sides facing inward of the top plate,
The cam portion is formed in a substantially isosceles triangle shape composed of a pair of equal sides and a long side formed slightly longer than the short side of the downward hole,
The restricting means includes a long side of the downward hole and a long side of the cam portion.
According to this feature, when the cam portion rotates in the downward hole, resistance is applied when both ends of the long side of the cam portion are in sliding contact with the pair of long sides of the downward hole. In the combined state, the cam portion is prevented from rotating reversely and the engagement between the engaging portion and the engaged portion being released.

The furniture with a top plate according to claim 4 of the present invention is the furniture with a top plate according to any one of claims 1 to 3,
The operation portion is characterized in that it protrudes from an end portion of an operation piece provided in a horizontal direction from the cam portion.
According to this feature, not only can the cam portion be rotated with a small force, but also the rotational force of the operation portion can be directly transmitted to the cam portion.

The furniture with a top plate according to claim 5 of the present invention is the furniture with a top plate according to claim 4,
The operation portion is provided so as not to protrude downward from the lower surface of the top plate holder.
According to this feature, it is prevented that the cam portion is inadvertently rotated due to the operation portion hitting the user's foot and the engagement state is released.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out furniture with a top plate according to the present invention will be described below based on examples.

  An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a perspective view showing an overall image of a desk in an embodiment of the present invention, and FIG. 2 (a) is a connection between a top plate and a leg. 2 (b) is a perspective view showing a connecting portion between the top plate and the leg, and FIG. 3 (a) is a cross-sectional view taken along line AA in FIG. 2 (b). 3 (b) is a cross-sectional view taken along the line BB in FIG. 2 (b), FIG. 3 (c) is a cross-sectional view taken along the line CC in FIG. 3 (a), and FIG. FIG. 4B is a perspective view showing a lower surface corner of the top plate, FIG. 4B is a sectional view taken along the line DD in FIG. 4A, and FIG. FIG. 5B is a plan view showing a fitted state and a GG end view of the cam portion, and FIG. 5B is a plan view showing a state in which the cam portion rotates in the downward hole and H of the cam portion. -H end view, FIG. FIG. 6 is a plan view showing a state in which the plate support is attached to the top plate and an II end view of the cam portion, FIG. 6 is a cross-sectional view taken along line EE in FIG. 5A, and FIG. It is FF sectional drawing in 5 (c).

  Reference numeral 1 in FIG. 1 is, for example, a desk as furniture with a top board to which the present invention is applied, which is assembled and used by an individual. As shown in FIG. 1, the desk 1 includes a rectangular top plate 2 and four legs 3 that support the bottom four corners of the top plate 2. A top plate receiver 4 made of a metal material is attached to the upper portion of the leg body 3, and these leg bodies 3 support the top plate 2 from below through the top plate receiver 4.

  As shown in FIG. 2A, the leg 3 is a prism that is long in the vertical direction. A fitting recess 3a that opens upward is formed at the upper end of these legs 3, and a screwing hole 3b is formed vertically in the center of the bottom of the fitting recess 3a. Yes.

  The top plate holder 4 is made of a plate-like member formed in a fan shape in plan view (see FIG. 5A), and the corner portion 4a forms an inner angle of 90 degrees. A fitting protrusion 4b that fits into the fitting recess 3a of the leg 3 is provided at the lower portion of the corner 4a. In addition, a through hole 4c that communicates in the vertical direction is formed in the corner 4a. A threaded screw 4d is inserted into the through hole 4c up to the threaded hole 3b in a state where the fitting recess 3a and the fitting protrusion 4b are fitted, and the screw 4d is screwed. Accordingly, as shown in FIG. 2 (b), the top plate support 4 is attached to the upper portion of the leg 3.

  A plate-like operation plate 5 is arranged on the upper surface side of the top plate holder 4. The operation plate 5 includes a cam portion 7 made of a synthetic resin material having elasticity that can be fitted into a downward hole 6a formed in a support plate 6 described later, and FIGS. 3 (a) and 3 (c). As shown, it is composed of an operation portion 9 provided at an end portion of a plate-like operation piece 8 extending from the cam portion 7 in the horizontal direction. The cam portion 7 is pivotally supported by a pivot 12 that faces in the vertical direction so that the cam portion 7 can be rotated in the horizontal direction on the top plate support 4. The operation unit 9 projects downward from the end of the operation piece 8 and can be operated to rotate the cam unit 7 by being gripped by a user or the like who assembles the desk 1. .

  As shown in FIG. 5A, two sides adjacent to each other with the corner 4 in the top plate receiver 4 are formed as a pair of linear portions 4e which are outer end portions of the top plate receiver 4. These linear portions 4 e are provided with engaging portions 10 for engaging the top plate receiving tool 4 with the top plate 2.

  Specifically, as shown in FIGS. 3A to 3C, upright pieces 10a are erected upward from the two linear portions 4e. And from the upper end part of the standing piece 10a, the engagement piece 10b is extended by 2 each toward the inner side of the top-plate holder 4. As shown in FIG. The lower surfaces of the engagement pieces 10b are formed as a tapered surface 10c that is inclined downward from the tip portion toward the upright piece 10a side that is the outer side.

  For this reason, the upright pieces 10a and the engaging pieces 10b are substantially L-shaped in a longitudinal sectional view, and extend over the entire length of each linear portion 4e, and constitute the engaging portion 10 described above. ing. As shown in FIG. 2A, the upper surface of the upright piece 10 a is formed as a flat surface that is flush with the upper surface of the corner portion 4 a of the top plate holder 4.

  An upper surface 4f of the top plate receiving tool 4 is formed in a flat shape, and constitutes a receiving surface in the present invention for receiving the lower surface 2a of the top plate 2 as shown in FIGS. 2 (a) and 2 (b). The upper surface 4f is provided with an operation recess 4g formed in a fan shape in plan view. The operation concave portion 4g is formed in a fan shape having an inner angle of 90 degrees similarly to the top plate holder 4, and a columnar pivot support protrusion 4h protrudes upward on the corner side of the operation concave portion 4g. In addition, an insertion hole 4i is formed in the center of the upper surface of the pivot support protrusion 4h so as to face in the vertical direction.

  In addition, the vertical height dimension of the pivot protrusion 4h is shorter than the vertical height dimension of the operation recess 4g, as shown in FIG. Furthermore, although not shown in particular, the pivot support protrusion 4h and the through hole 4c are disposed on the center line that divides the operation recess 4g and the top plate support 4 into a fan shape having an inner angle of 45 degrees.

  As shown in FIGS. 3 (a) and 5 (a), an operation groove 4j that communicates vertically is formed on the outer peripheral edge of the operation recess 4g over the entire circumferential length of the operation recess 4g. Further, at the substantially center in the circumferential direction of the bottom surface of the operation concave portion 4g, an arc-shaped ridge 4k projecting upward from the bottom surface extends in the circumferential direction of the operation concave portion 4g. An operation piece 8 is ridden on the strip 4k.

  As shown in FIGS. 3 (a) and 5 (a), the operation plate 5 is disposed in the operation recess 4g, and the cam portion 7 provided on the operation plate 5 is located on the pivotal protrusion 4h. Be placed. The cam portion 7 is formed in a substantially triangular prism shape composed of a long side 7a and a pair of equal sides, and a pivot hole 7b communicating in the vertical direction is formed on the inner angle side sandwiched between the pair of short sides. The pivot shaft 12 is pivotally attached to the insertion hole 4i through the pivot support hole 7b.

  As shown in FIGS. 3A and 3C, the operation portion 9 is disposed in the operation groove 4j by the cam portion 7 being disposed on the pivotal protrusion 4h. The vertical length of the operation unit 9 is formed to a length that does not protrude downward from the lower surface of the top plate holder 4.

  For this reason, not only can the rotational force be transmitted directly to the cam portion 7 by operating the operation portion 9 from the operation groove 4j, but the cam portion 7 can be rotated by a small rotational force. On the upper surface of the operation piece 8, two sliding contact pieces 8 a are provided so as to project upward from the cam portion 7 toward the operation portion 9.

  The rotation angle of the cam portion 7 is restricted to about 90 degrees by the inner surface of the operation recess 4g with which the operation piece 8 abuts. Further, as shown in FIGS. 3B and 6, the sliding contact piece provided on the upper surface of the operation piece 8 by the operation piece 8 riding on the protrusion 4 k during the rotation of the cam portion 7. 8 a is in sliding contact with the lower surface 6 e of the support plate 6, and friction is generated between the lower surface of the operation plate 8 and the protrusion 4 k and between the sliding contact piece 8 and the lower surface 6 e of the support plate 6. 9 is prevented from rotating carelessly.

  On the other hand, as shown in FIG. 4A, a notch recess 11 into which the top plate support 4 is fitted is formed in the corners 2b at the four corners, which are the outer peripheral edges of the lower surface 2a of the top plate 2. . This notch recess 11 is a recess that opens outward in two directions and downward on the outer side of the top plate 2, and a metal support plate 6 formed separately from the top plate 2 on the inner lower surface thereof, It is attached via multiple screws. The support plate 6 is attached to the notch recess 11 so that the lower surface of the support plate 6 constitutes the lower surface 6 e of the notch recess 11.

  As shown in FIG. 2A, the support plate 6 is formed with a downward hole 6 a that communicates in the vertical direction of the support plate 6. As shown in FIG. 4A, the downward hole 6 a is configured such that the opening on the upper surface side is closed by attaching the support plate 6 to the notch recess 11, and the lower surface 6 e of the notch recess 11. Is opened downward from the lower surface of the support plate 6 constituting the.

  As shown in FIG. 4A and FIG. 4B, the notch recesses 11 are adjacent to each other with the corner portions 2 b of the top plate 2 corresponding to the pair of linear portions 4 e of the top plate holder 4. The outer surface 2c of the top plate 2 as a straight side portion is formed in a sector shape having an inner angle of 90 degrees. In addition, a notch groove 11 a into which the upright piece 10 a of the top plate receiving tool 4 is fitted is provided at the outer peripheral edge portion of the corner portion 2 b of the top plate 2 that is the outer end portion of the notch recess 11.

  The support plate 6 is formed in a substantially sector shape in which the notch recess 11 is slightly reduced. The downward hole 6 a is formed in a substantially rectangular shape including a pair of short sides 6 b and a pair of long sides 6 c facing inward of the top plate 2. It is formed slightly shorter than the long side 7a.

  And the outer surface 6d of the support plate 6 is arrange | positioned between the outer surface 2c of the top plate 2, and the side surface 11b of the notch groove 11a. For this reason, between the support plate 6 and the notch groove 11a, it has the length over the perimeter of the support plate 6 and the notch groove 11a, and the to-be-engaged part in this invention opened to the outer side of the top plate 2 The engaged groove 11c can be easily formed.

  By configuring the notch recess 11 in this manner, the top plate support 4 is configured so that the upper surface 4f is brought into contact with the lower surface 6e of the notch recess 11 as shown in FIG. 5A and FIG. The cam portion 7 is moved in the operation groove 4j from the disengaged state where the cam portion 7 is fitted into the hole 6a and the engagement piece 10b is not engaged with the engaged groove 11c. Rotates (rotates) with its peripheral surface guided by the inner wall of the downward hole 6a. For this reason, the pivot 12 moves horizontally toward the inside of the top plate 2 by the rotation of the cam portion 7. That is, the downward hole 6 a and the cam portion 7 pivot 12 constitute a moving means in the present embodiment for moving the top plate receiver 4 toward the inside of the top plate 2.

  At this time, the top plate receiver 4 is moved horizontally relative to the lower surface 2a of the top plate 2 toward the inner side of the top plate 2 by the movement of the pivot 12 toward the inner side of the top plate 2. The engaging piece 10b shown in FIG. 5C and FIG. 7 engages with the engaged groove 11c while being in sliding contact with the support plate 6 by the tapered surface 10c, so that the engaging piece 10b is engaged with the engaged groove from above and below. It is clamped by 11c, and the rattling of the top plate holder 4 in the vertical direction can be suppressed.

  As shown in FIG. 5 (a), the position at the operation groove 4j of the operation portion 9 for turning the cam portion 7 when the top plate holder 4 is in the disengaged state is set as the initial position. As shown to (c), let the position in the operation groove 4j of the operation part 9 when the top-plate holder 4 is an engagement state be a connection position.

  As shown in FIG. 5 (b), the cam portion 7 fitted in the downward hole 6a has a length dimension of the long side 7a of the cam portion 7 shorter than the long side 6c of the downward hole 6a. Therefore, the long side 6c of the downward hole 6a and the both ends of the long side 7a of the cam part 7 are in the middle of rotating the cam part 7 by moving the operation part 9 from the initial position to the coupling position. The sliding contact is made and resistance is applied to the rotation of the cam portion 7.

  The sliding contact between both long sides 6c of the downward hole 6a and both ends of the long side 7a of the cam portion 7 moves the operating portion 9 from the coupling position toward the initial position, and the top plate holder 4 is engaged. Since the top plate support 4 is in the engaged state, the cam portion 7 is reversely rotated to release the engagement between the engaging portion 10 and the engaged groove 11c. Is prevented. That is, the long side 7a of the cam portion 7 and the long sides 6c of the downward hole 6a constitute a restricting means in the present invention for restricting the rotation of the cam portion 7.

  Next, the connection method and operation of the leg 3 with respect to the top plate 2 will be described. First, as shown in FIGS. 5 (a) and 6, the lower surface 2a of the top plate 2 is turned upside down. Then, with the upper surface 4f of the top plate receiver 4 facing downward, the upper surface 4f is brought into contact with the lower surface 6e of the notch recess 11, and the cam portion 7 is fitted into the downward hole 6a, so that the top plate receiver 4 is set at a slightly outside position of the top plate 2 to be in a disengaged state. At this time, the operation part 9 is arranged at the initial position, and the pivot 12 is located near the outer long side 6c in the downward hole 6a.

  Next, when the operating portion 9 is moved from the initial position toward the connecting position along the operating groove 4j, the cam portion 7 is guided by the inner wall of the downward hole 6a as shown in FIG. 5B. Rotate (rotate) in the Specifically, both ends of the long side 7a on the peripheral surface of the cam portion 7 rotate while being in sliding contact with both the long sides 6c of the downward hole 6a. At this time, since the long side 7a is slightly longer than the short side 6b of the downward hole 6a, both ends of the long side 7a on the circumferential surface of the cam portion 7 are slightly recessed inward (elastically deformed). This gives a slight resistance to the rotation. The pivot 12 also starts moving toward the inside of the top plate 2.

  At this time, the operation plate 5 rides on the protrusion 4k disposed on the bottom surface of the operation recess 4g, and the two sliding contact pieces 8a provided on the upper surface of the operation piece 8 are connected to the lower surface 6e of the notch recess 11. Abut. For this reason, the operation plate 5 is slidably moved while receiving resistance from above and below. Further, the engaging piece 10b is engaged with the engaged groove 11c while the taper surface 10c is slidably contacted with the support plate 6, so that the engaging piece 10b is supported as the engaging piece 10b is engaged with the non-engaging portion 11c. The frictional force applied to the engaging piece 10b from the plate 6 and the top plate 2 increases.

  And as shown in FIG.5 (c), when the operation part 9 reaches | attains a connection position, the pivot 12 will be moved to inner side near the long side 6c, and the top plate holder 4 will be the to-be-engaged groove | channel of the engagement piece 10b. The top plate support 4 is connected to the notch recess 11 and the attachment of the leg 3 to the top plate 2 is completed.

  At this time, a part of the circumferential surface of the cam portion 7 rotated about 90 degrees in the downward hole 6a (a portion facing the long side 6c) is in contact with and guided by the inner wall of the downward hole 6a. By restricting the horizontal movement of the top plate support 4 with respect to the top plate 2, that is, the horizontal movement in the direction in which the engagement piece 10b is disengaged from the engaged groove 11c, the engaged groove 11c and Release of the engagement state with the engagement of the engagement piece 10b is prevented.

  Further, the frictional force generated by the engaged groove 11c tightening the engaging piece 10b and the both ends of the long side 7a of the cam portion 7 when the operating portion 9 tries to return to the initial position are the downward holes 6a. The reverse rotation of the cam portion 7 is prevented by the frictional force generated by sliding contact with both long sides 6c and the frictional force generated above and below the operation piece 8 when the operation piece 8 rides on the protrusion 4k. Therefore, the engagement state between the engaged groove 11c and the engagement piece 10b is inadvertently released, and the leg 3 is not detached from the top plate 2.

  Further, the upright piece 10a is fitted into the notch groove 11a simultaneously with the engagement of the engagement piece 10b with the engaged groove 11c, and at the corner 2b of the top plate 2, the linear portion 4e of the top plate support 4 and Since the outer surface 2c of the top plate 2 is substantially flush with the outer surface 2c of the top plate 2, a part of the top plate support 4 protrudes from the side peripheral surface of the top plate 2 and the appearance appearance is not impaired.

  As described above, the desk 1 with the legs 3 attached to the four corners 2b of the top plate 2 is turned over again so that the top surface of the top plate 2 faces upward. As shown in FIG. 2 is supported by the four legs 3 from below. At this time, since the operation unit 9 does not protrude downward from the top plate holder 4, the cam unit 7 is inadvertently rotated in the reverse direction when the operation unit 9 hits the leg of the user of the desk 1, etc. The engagement state of the plate holder 4 is prevented from being released.

  As described above, in the desk 1 as an embodiment of the present invention, the top plate receiver 4 includes the engaging portion 10 that can be engaged with the engaged groove 11c provided in the top plate 2, and the downward hole. A cam portion 7 that can be fitted to 6a, a pivot shaft 12 that supports the cam portion 7 in the vertical direction, and an operation portion 9 that rotates the cam portion 7 about the pivot shaft 12; In a state where the cam portion 7 is fitted in 6 a, the top plate receiver 4 is moved relative to the top plate 2 in the horizontal direction by rotating the cam portion 7 around the pivot 12 by the operation portion 9. The engaging portion 10 is engaged with the engaged groove 11c, and the leg 3 is held by the top plate 2, so that the operating portion 9 is operated in a state where the cam portion 7 is fitted in the downward hole 6a. Thus, the cam portion 7 rotates while being guided by the long side 6c and the short side 6b of the downward hole 6a, and the pivot 12 moves in the downward hole 6a. Since the top plate support 4 provided with 2 is moved relative to the top plate 2 in the horizontal direction and the engaging portion 10 is engaged with the engaged groove 11c, a fixing portion such as a bolt is used. Instead, the leg 3 can be easily connected to the top plate 2 simply by fitting the cam portion 7 into the downward hole 6a and operating the operation portion 9.

  Further, the top plate holder 4 on which the engaging portion 10 is formed is slid with respect to the lower surface 6e of the notch recess portion 11 by rotating the cam portion 7, thereby engaging the engaging portion 10 with the engaged groove 11c. Since the engagement portion 10 itself can be rotated and engaged as in the prior art, the rigidity of the engagement engagement portion 10 and the engaged groove 11c can be increased. Since a large load is not applied to the cam portion 7 itself that needs to be rotated, the leg 3 can be firmly connected to the top plate 2.

  Further, since the notch recess 11 is formed on the lower surface of the top plate 2, the connecting position of the leg 3 with respect to the top plate 2 can be easily determined, and a part of the top plate support 4 is attached to the outside of the top plate 2. By operating the operating portion 9 in a state where the upper surface 4f of the top plate receiving member 4 serving as a support surface is in contact with the lower surface 6e of the notch recess 11 so as to project outward from the side surface, the top plate receiving device 4 Slides toward the inside of the top plate 2, whereby the engaging portion 10 is engaged with the engaged groove 11 c from the outside of the top plate 2, so that the leg 3 is easily connected to the top plate 2. can do.

  That is, the engagement piece 10b is extended inwardly in the horizontal direction, so that in the engaged state where the engagement piece 10b is engaged with the engaged groove 11c, the direction in which the leg 3 is detached from the top plate 2 ( Downward movement) is reliably restricted, and movement in the horizontal direction is restricted by the contact between the cam portion 7 as the moving means and the downward hole 6a. Can be connected without rattling.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, the engagement piece 10b is extended from the standing piece 10a of the top plate holder 4 toward the inside of the top plate holder 4, and the top plate 2 is inserted into the notch recess 11 of the top plate 2. An engagement groove 11c that opens outward is formed so that the engagement piece 10b can be engaged with the engagement portion. By rotating the cam portion 7 in the downward hole 6a, the top plate As long as the receiving device 4 can be engaged with the top plate 2, the positions and forms of the engaging portion and the engaged portion are not limited to those described above. The engaging pin is erected upward from the upper surface 4f of the receiving device 4, and the engaged portion is a dharma hole formed in the lower surface 6e of the notch recess 11, and the engaging pin is inserted into the dharma hole from below. In this state, by rotating the cam portion 7 in the downward hole 6a and moving the top plate receiving tool 4 to the inside of the top plate 2, the engagement pin is engaged in the dharma hole. It may be the one.

  Moreover, in the said Example, although the notch recessed part 11 was formed in the corner | angular part 2b of the lower surface 2a of the top plate 2, the place which forms a notch recessed part may be the outer surface 2c side of the lower surface 2a of the top plate 2. FIG. In this case, since the top plate holder is formed without forming an inner angle, the engaging portion extends from the outer end portion on the outer surface 2c side of the top plate 2 toward one side. An engaging portion is further provided at the inner end of the top plate 2 of the plate holder 4 and an engaged portion is formed in the notch recess to engage the engaging portion. 2 may be stably held.

  Moreover, in the said Example, although the leg 3 was connected with the notch recessed part 11 formed in the top plate 2, the downward hole 6a is formed in the lower surface of the top plate 2, and the top plate holder 4 is directly formed in the lower surface. May be connected.

  Moreover, in the said Example, although the furniture with a top plate was demonstrated as the desk 1, if it is furniture which has a leg which supports a top plate and this top plate from the downward direction, a chair, a storage shelf, etc. may be sufficient, for example. .

  Moreover, in the said Example, although the top plate 2 was formed in rectangular shape and the leg was attached to the corner | angular part 2b which is four corners of the top plate 2 via the top plate holder 4, the shape of the top plate 2 is It may be a polygon other than a rectangle, or may be a circle having no corners.

  In the above embodiment, the cam portion 7 is formed in a substantially triangular shape in plan view consisting of the long side 7a and a pair of equal sides. However, the cam portion 7 may be an eccentric member whose distance from the pivot 12 to the peripheral surface of the cam portion is not constant. For example, the shape of the cam portion 7 may be a circular cylinder in plan view, and the cam portion may be pivotally supported by a pivot while avoiding the center of the circle.

It is a perspective view which shows the whole image of the desk in an Example. (A) is a disassembled perspective view which shows the connection part of a top plate and a leg body, (b) is a perspective view which shows the connection part of a top plate and a leg body. (A) is AA sectional drawing in FIG.2 (b), (b) is BB sectional drawing in FIG.2 (b), (c) is C in FIG.3 (a). It is -C sectional drawing. (A) is a perspective view which shows the lower surface corner | angular part of a top plate, (b) is DD sectional drawing in Fig.4 (a). (A) is the top view which shows the state which the cam part is fitting to the downward hole, and GG end elevation of a cam part, (b) is a cam part rotating in a downward hole. It is the top view and HH end view of a cam part which show a state, (c) is the top view and II end view of a cam part which show the state in which the top plate holder was attached to the top plate. It is EE sectional drawing in Fig.5 (a). It is FF sectional drawing in FIG.5 (c).

Explanation of symbols

1 desk (furniture with a top plate)
2 Top plate 2c Outside surface (straight side)
3 Leg 4 Top plate support 4e Linear part 4f Upper surface (supporting surface)
6 Support plate 6a Down hole (moving means)
6c Long side (regulatory means)
6e Lower surface 7 Cam part (moving means)
7a Long side (regulatory means)
9 Operation part 10 Engagement part 10a Standing piece 10b Engagement piece 11 Notch recessed part 11a Notch groove 11c Engagement groove (engaged part)
12 Axis (moving means)

Claims (5)

A furniture with a top plate, comprising: a top plate having a downward hole that opens downwardly on a lower surface; and a leg that has a top plate support that supports the lower surface of the top plate provided on the top. And
The top plate holder is
An engaging portion engageable with an engaged portion provided on the top plate;
A cam portion that can be fitted into the downward hole;
A pivot that faces the up and down direction to pivotally support the cam portion;
An operating portion for rotating the cam portion around the pivot;
With
When the cam portion is fitted in the downward hole, the cam portion is rotated around the pivot axis by the operation portion, whereby the top plate holder is horizontally oriented with respect to the lower surface of the top plate. The furniture with a top plate, wherein the engaging portion is engaged with the engaged portion, and the leg body is connected to the top plate.   2. A restricting means for restricting the rotation of the cam portion in the downward hole is provided in an engaged state in which the engaging portion is engaged with the engaged portion. Furniture with a top plate as described in. The downward hole is formed in a substantially rectangular shape composed of a pair of short sides and a pair of long sides facing inward of the top plate,
The cam portion is formed in a substantially isosceles triangle shape composed of a pair of equal sides and a long side formed slightly longer than the short side of the downward hole,
The furniture with a top plate according to claim 2 , wherein the restricting means includes a long side of the downward hole and a long side of the cam portion.   The furniture with a top plate according to any one of claims 1 to 3, wherein the operation portion is projected from an end portion of an operation piece provided in a horizontal direction from the cam portion.   The furniture with a top plate according to claim 4, wherein the operation unit is provided so as not to protrude downward from a lower surface of the top plate holder.

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