JP2009165669A - Top plate attaching structure and furniture with top plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a top plate attaching structure capable of attaching a top plate to a leg through an easy operation, accurately performing positioning, and appropriately coping with the attachment of an odd-shaped top plate or the like as well. <P>SOLUTION: When attaching the top plate 2 to a top plate receiver 1x, a front movable pawl 102 and a back movable pawl 103 project upwards from the top plate receiver 1x in the state capable of relative movement in the direction of getting close to each other or in the direction of separating from each other through a screw feed operation by a drive mechanism 4, and the drive mechanism 4 is disposed so as to be loosely moved in a screw feed direction entirely together with both movable pawls 102 and 103 in the state of not performing the screw feed operation. Then, slits 202 and 203 to be openings are provided on the lower surface of the top plate 2, and by inserting both movable pawls 102 and 103 to the slits 202 and 203 and performing screw feed by the drive mechanism 4, both movable pawls 102 and 103 are engaged at the nearby edge parts of the slits 202 and 203, and the top plate 2 is attached to the top plate receiver 1x. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention uses a top plate mounting structure and a top plate that can be attached to a leg with a simple operation, can be accurately positioned, and can appropriately handle the mounting of a deformed top plate, etc. It relates to furniture with a top board.

  For example, the structure shown in Patent Document 1 is known as a structure for attaching a top plate to a leg. In this case, a fixed claw is provided at the upper end of the leg stay, while a slit is opened on the lower surface of the top plate, and the top plate is slid while pulling the rear end side with a screw with the fixed claw inserted into the slit. By attaching the claw to the slit, the top plate is attached to the leg.

In addition, in Patent Document 2, a fixed claw and a movable claw are provided at the upper end of the leg column, and a grip type screw member is attached to the outside of the outer wall of the leg, and this screw member is screwed to the movable claw and driven. The mechanism is configured. Then, by operating the grip, the movable claw is screwed back and forth using the outer wall as a scaffold, and the fixed claw and the movable claw are engaged with the opening of the top plate.
Japanese Patent No. 2630048 Japanese Patent No. 2713199

  However, in any case, since the top plate is dragged when the screw is tightened, the operation resistance when operating with a tool or the like is large, and an appropriate operation may become difficult as the top plate becomes large.

  In addition, when the fixed and movable pawls are tapered, the top plate will come into close contact with the screw as the screw is tightened, and the top plate will move further finely as the bite goes in. There is also a problem that is not fixed.

  Furthermore, for example, as shown in FIG. 10, when both edges b1 and b2 of the top plate b are attached to a pair of legs a1 and a2 arranged in parallel, the top plate b is attached when the top plate b is attached to one leg a1. When the one edge b1 of the top plate is dragged first as shown by the arrow X1, the top plate b causes a slight horizontal turning as shown by the imaginary line X2, and as a result, both the claws and the top plate of the legs a1 and a2 The positional relationship with the openings of the edges b1 and b2 may be out of order, and the top plate b may not be properly attached to the legs a1 and a2. Furthermore, as shown in FIG. 11, for example, when both edges d1 and d2 of the deformed top plate d are attached to the legs c1 and c2 arranged orthogonally, the top plate d is attached when the top plate d is attached to one leg c1. When one edge d1 of the plate d is dragged first as shown by the arrow Y1, the top plate d and the leg c2 in the other leg c2 are in the Y2 direction substantially the same as Y1 (that is, the claw and the top plate edge of the leg c2). Therefore, it may be difficult to attach the top plate d to the leg c2 in a direction perpendicular to the direction of engagement with the opening of the portion d2.

  The present invention has been made paying attention to such a problem, and the top plate can be appropriately attached to the leg through a simple operation, the positioning can be accurately performed, and the top plate can be attached to the modified top plate. It is an object of the present invention to provide a top plate mounting structure and a furniture with a top plate that can be effectively handled.

  In order to achieve this object, the present invention takes the following measures.

  First, according to the top plate mounting structure of the present invention, when the top plate is attached to the top plate receiver, the first and second engaging portions are mutually connected to each other through a screw feed operation by a drive mechanism. The drive mechanism is provided so as to be relatively movable in a direction toward or away from each other, and the drive mechanism is disposed so as to be freely movable in the screw feed direction as a whole together with both engaging portions without performing the screw feed operation. An opening is provided on the lower surface of the door, and both engaging portions are inserted into the opening and screw-fed by a drive mechanism, whereby the engaging portions are engaged with the opposite or opposite edges of the opening. The top plate is attached to the top plate holder.

  With such a configuration, after the top plate is placed on the top plate holder, the screw feed operation of the drive mechanism is performed, and when both the engaging portions perform relative operations, even one of the engaging portions is Even if it engages with the opening edge part of the top plate corresponding to the first, the remaining engagement part moves toward the opening edge part of the corresponding top plate while the whole drive mechanism is idled as necessary. . In other words, as long as the top plate is properly placed in a position where the two engaging portions are received in the opening, the top plate does not move after that, and the two engaging portions move to the necessary place and are tightened in line. It will be. For this reason, the top plate can be easily attached to the leg under light operability without dragging the top plate during screw feeding. Therefore, it is particularly effective for a large top plate or the like.

  In order to securely fix the top plate to the legs, it is preferable to provide a fixing portion for fixing the top plate to the top plate holder in the screw feed direction between the top plate and the top plate holder. . The fixing portion referred to here includes fixing after tightening by screw feeding.

  However, in order to securely position the top plate at a predetermined position, the fixing portion is an uneven portion formed between the top plate and the top plate support when the top plate is placed on the top plate support. It is desirable.

  As a simple configuration of the drive mechanism, a through hole is provided in the first engaging portion, a screw hole is provided in the second engaging portion, the screw member is passed through the first engaging portion, and the second engaging portion is provided in the second engaging portion. What is screwed into the engaging portion of the.

  When the screw member is provided with a rotational force input end at the head and is configured to perform screw feed by rotating in a state where a part is pressed against the retainer provided at the first engaging portion In addition, in order to reliably move the two engaging portions relative to each other by an input to the screw member, a head presser is provided in the first engaging portion adjacent to the head portion, and the rotation of the head presser is performed on the head presser. It is desirable to provide an opening window having a smaller inner dimension than the head for opening the force input end to the rotational force input side.

  Using the top plate mounting structure as described above, if you attach both edges of the top plate to the top plate holder of a pair of legs arranged in parallel, without disturbing the positional relationship between the engagement portion and the opening, The top plate can be properly attached to the leg at any edge of the top plate.

  In addition, if the corresponding parts of the top plate are attached to the top plate receptacles of the pair of cross-arranged legs using the top plate mounting structure as described above, the other top plate is attached when the top plate is attached to one leg. It is possible to properly attach the top board to the leg between any leg and the top board without dragging.

  Since the present invention has the above-described configuration, the top plate can be attached to the leg without changing the relative position of the top plate and the leg with screw feeding. Thus, an excellent effect is achieved that the attachment of the deformed top plate to the leg can be easily and appropriately performed through a light operation.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG.1 and FIG.2 has shown the desk which is a furniture with a top plate to which the attachment structure of this embodiment is applied. This desk is constructed by connecting a pair of legs 1 and 1 with a top plate 2 and a back plate 3 that also serve as reinforcing members.

  The leg 1 is provided with a stay portion 12 and a base portion 13 extending forward from both upper and lower ends of the leg side plate 11, and the stay portion 12 is directed upward from the top plate receiver 1x as shown in FIGS. A front movable claw 102 serving as a first engagement portion and a rear movable claw 103 serving as a second engagement portion project from the first engagement portion.

  Specifically, as shown in FIGS. 4 and 5, the stay portion 12 is formed by covering a channel-shaped upper reinforcing portion 120 that opens upward with a steel plate 121 to form a hollow portion. A pair of actuating portions 41, 42 constituting the base ends of both movable claws 102, 103 are arranged in 120 so as to be slidable along the longitudinal direction of the stay portion 12.

  Both actuating portions 41 and 42 are formed with opposing walls 41a and 42a as shown in FIGS. 4, 5 and 7, respectively, and the former opposing wall 41a has a through hole along the longitudinal direction of the stay portion 12. 41b is provided, a nut is attached on the axial center of the through hole 41b in the latter opposing wall 42a to provide a screw hole 42b, and the tip of the screw member 43 inserted through the through hole 41b from the front is screwed into the screw hole 42b. It is combined. That is, the drive mechanism 4 is mainly composed of the operation portion 41 having the through holes 41b, the operation portion 42 having the screw holes 42b, and the screw member 43.

  The drive mechanism 4 is arranged in the stay 12 along the longitudinal direction, and both the operating parts 41 and 42 (and thus both movable claws 102 and 103) are entirely screwed in the screw feeding direction even when the screw feeding operation is not performed. It is arranged in a playable state. The diameter of the through hole 41b is set to be smaller than the head 43a of the screw member 43. The head 43a of the screw member 43 is provided with an operation force input end 43x such as a hexagonal hole that can be engaged with a tool. ing. The actuating portion 41 is provided with a plate-like head presser 44 having an opening window 44a for opening the operating force input end 43x forward with the screw member 43 inserted through the through hole 41a. Yes. As shown in FIG. 6, the screw member 43 is rotated by a tool P inserted from the front through the hole 44 a of the head presser 44.

  As shown in FIGS. 4 and 5, the front movable claw 102 passes through a slit 12a provided in the vicinity of the front end of the stay portion 12 and protrudes upward from the top plate receiver 1x. It is bent in an inverted L shape. The lower edge 121a of the front end portion 121 of the front movable claw 102 has a tapered shape inclined with respect to the upward surface of the stay portion 12.

  Further, the rear movable claw 103 is a member that passes through a slit 12b provided in the vicinity from the rear end of the stay portion 12 to the leg side plate 11 and protrudes upward from the top plate receiver 1x, with the tip 131 directed forward. And bent into an inverted L shape. Thereafter, the lower edge 131a of the distal end portion 131 of the movable claw 103 has a tapered shape inclined with respect to the top plate receiver 1x of the stay portion 12.

  Then, the rotational force input end 43x for rotating the screw member 43 can be exposed in front of the stay portion 12 shown in FIG. 2 along the screw member 43, and in front of the stay portion 12, The cap c1 is attached when not operated.

  Note that a positioning projection 10 protrudes upward from a required portion of the top plate receiver 1x, in this embodiment, between the front movable claw 102 and the rear movable claw 103.

  On the other hand, the top plate 2 is obtained by reinforcing the face plate portion 21 with a front frame 22, a rear frame 23, and left and right side frames 24, as shown in FIG. In addition, a pair of slits 202 and 203 each having an opening are formed. As shown in FIG. 3, the front and rear slits 202 and 203 have a taper shape in which the opening width d gradually decreases toward each other. Further, a positioning hole 20 is opened at a corresponding position of the positioning projection 10 in order to place the top plate 2 on a predetermined position of the leg 1.

  Then, as shown in FIG. 6, the top plate 2 is placed on the top plate receiver 1x set in the region extending from the stay portion 12 to the leg side plate 11, and the front movable claw 102 and the rear movable claw 103 are placed in the slits 202 and 203. In this case, the positioning protrusion 10 is inserted into the positioning hole 20 to form the unevenness related portion X as the fixing portion of the present invention. Then, by driving the electric power tool P or the like with the screw member 43 from that state, both the movable claws 102 and 103 are driven in a mutually approaching direction, whereby the front movable claw 102 is moved to the corresponding slit 202. The top plate 2 is fixed on the top plate receiver 1x by engaging the rear movable claw 103 with the rear edge and the front edge of the corresponding slit 203, respectively.

  The operation at that time will be described. First, with the movable claws 102 and 103 positioned at a moderately spaced portion, the slits 202 and 203 are passed through, and as shown in FIG. Place the top plate 2 on it. At this time, the positions of the movable claws 102 and 103 with respect to the slits 202 and 203 are not determined. Next, as shown in FIG. 6, when the electric tool P is inserted from the front into the operating force input end X of the screw member 43, the drive mechanism 4 as a whole is moved backward by the pressing force of the tool P unless there is a particularly large portion of friction. The rear movable claw 103 abuts against the rear edge r of the slit 203 as shown in FIG. Then, the screw member 43 starts to be substantially screwed into the screw hole 42b from that position. As a result, the front movable claw 102 is urged by the head portion 43a of the screw member 43 and moves rearward as indicated by the arrow in the figure, and engages with the rear edge 202r of the slit 202. However, since the slit 202 becomes narrow from the middle, it is also expected that the rear movable claw 103 starts to move forward before the front movable claw 102 reaches the rear edge 202r of the slit 202. In any case, the distance between the movable claws 102 and 103 is gradually shortened by the screw feed, and finally the movable claws 102 and 103 move toward each other as shown in FIG. The movable claw 102 is engaged with the rear edge 202r of the slit 202, and the rear movable claw 103 is engaged with the front edge 203f of the slit 203.

  That is, as long as the top plate 1 receives both the movable claws 102 and 103 in the slits 202 and 203 and receives the positioning projection 10 in the positioning hole 20 and appropriately places it on the top plate receiver 1x, thereafter, The top plate 1 does not move, and both the movable claws 102 and 103 move to a necessary place and are tightened in the course.

  At this time, the lower edges of the leading ends of the movable claws 102 and 103 are tapered in the extending direction, and the opening widths of the slits 202 and 203 are gradually narrowed as the movable claws 102 and 103 move. The lower ends 121a and 131a of the movable claws 102 and 103 are engaged with each other so as to gradually bite into the opening edge, and at the same time, the movable claws 102 and 103 are connected to the narrow portions of the slits 202 and 203. By engaging so as to bite in, the top plate 2 and the leg 1 are strongly connected both in the front-rear direction and in the width direction.

  The front end of the stay 12 is opened forward when the cap c1 shown in FIG. 1 is not attached, and the screw head 43a of the screw member 43 is in a standby state behind the opening. By inserting the electric tool P or the like into the force input end 43x and driving the screw member 43, the left and right legs 1 supporting the top board 2 are connected to the leg 1 of the top board 2 in one operation for each one. Can be completed.

In the above, the movable claws 102 and 103 are paired, and the hook holes 202 and 203 of the top plate 2 are also paired, and the top plate 2 is placed on the top plate receiver 1x of the leg 1 and movable. The claws 102 and 103 can be engaged with the hook holes 202 and 203 of the respective top plates 2. As described above, the hook holes 202 and 203 are gradually narrower in the direction in which both the movable claws 102 and 103 are engaged. The top plates 2 and 2 can be strongly connected also in the width direction.
When it is necessary to remove the top plate 2, the screw member 43 is driven in the reverse direction by the electric tool P, but the movable claws 102 and 103 are inserted into the hook holes 202 and 203 in the state of FIG. If there is no bite and there is no head retainer 44, it is considered that when the screw member 43 is fed into the screw hole 42b, only the screw member 43 moves forward without moving the movable claws 102 and 103. It is done. On the other hand, in this embodiment, since the head member 44 prevents such movement of the screw member 43, the screw feeding operation surely leads to the separation operation of the both movable claws 102 and 103. .

In this embodiment, as shown in FIGS. 2 and 8, an upper movable claw 112 and a lower fixed claw 113 project rearwardly on the rear surface 1 y of the leg 1, and these are directed backward. It is bent in an inverted L shape in the direction. The back plate 3 is attached to the rear surfaces 1y of the left and right legs 1 so that the claws 112 and 113 are received in the slits 302 and 303 provided in the back plate 3, and the upper movable claw 112 is screwed from above. By screwing through 143, the leg 1 and the back plate 3 can be connected.

  As described above, in the top plate mounting structure of the present embodiment, when the top plate 2 is attached to the top plate receiver 1x, the front movable claws 102 serving as the first and second engaging portions upward from the top plate receiver 1x. The rear movable claw 103 is projected so as to be relatively movable in a direction that moves toward or away from each other through a screw feed operation by the drive mechanism 4, and the drive mechanism 4 does not perform the screw feed operation. , 103 are arranged so as to be freely movable in the screw feed direction. Then, slits 202 and 203 serving as openings are provided on the lower surface of the top plate 2, and both movable claws 102 and 103 are inserted into the slits 202 and 203 and screwed by the drive mechanism 4, so that The top plate 2 is attached to the top plate receiver 1x by engaging the movable claws 102 and 103 with the edge of the table.

  With such a configuration, after the top plate 2 is placed on the top plate receiver 1x, the screw feed operation of the drive mechanism 4 is performed, and the two movable claws 102 and 103 perform relative movements accordingly. Regardless of which of 102 and 103 is engaged with the opening edge of the slit 202 or 203 corresponding to the first, the entire drive mechanism 4 moves freely as required, while the remaining one of the movable claws 202 and 203 corresponds to the slit. It moves toward the opening edge of 202 or 203. In other words, as long as the top plate 2 is properly placed on the slits 202 and 203 that are the openings, the top plate 2 does not move after that, and the two movable claws 202 and 203 are moved. 203 moves to a necessary place and tightens according to the situation. For this reason, the top plate 2 can be easily attached to the leg 1 with light operability without dragging the top plate 2 during screw feeding. Therefore, it can be a particularly effective mounting structure for a large top plate or the like.

  At that time, in a state where both the movable claws 102 and 103 are engaged with the opening edges of the slits 202 and 203 of the top plate 2, the top plate 2, the movable claws 102 and 103, and the drive mechanism 4 are integrated with each other from the leg 1. Although it prevents lifting, it can still move together in the screw feed direction. On the other hand, in the present embodiment, the unevenness related portion X, which is a fixing portion for fixing the top plate 2 to the top plate receiver 1x in the screw feeding direction, is provided between the top plate 2 and the top plate receiver 1x. Therefore, the top plate 2 can be securely fixed to a required position of the leg 1. Of course, the unevenness related portion X does not drag the top plate 2.

  In particular, since the concave-convex related portion X as the fixing portion is formed between the top plate 2 and the top plate receiver 1x when the top plate 2 is placed on the top plate receiver 1x, the position of the top plate 2 at this time is determined. Since both the movable claws 102 and 103 are tightened with reference to the position, the top plate 2 can be reliably positioned at a predetermined position, and the position of the top plate 2 does not go out of position even if it is tightened strongly. The positioning accuracy can be effectively increased.

  Further, the drive mechanism 4 is provided with a through hole 41b in a part of the front movable claw 102 that is the first engagement part, and a screw hole 42b is provided in a part of the rear movable claw 103 that is the second engagement part. Since the screw member 43 passes through the through hole 41b of the front movable claw 102 and is screwed into the screw hole 42b of the rear movable claw 103, the drive mechanism 4 can be configured simply.

  Then, the screw member 43 is provided with a rotational force input end 43x on the head 43a, and a part of the screw member 43 is pushed against the opposing wall 41a serving as a retainer portion provided on the front movable claw 102 which is the first engaging portion. It is configured to perform screw feed by rotating in the contact state, and is provided with a head presser 44 on a part of the front movable claw 102 adjacent to the head 43a. An opening window 44a having a smaller inner dimension than the head 43a for opening the rotational force input end 43x to the rotational force input side is provided.

  That is, assuming that there is no head presser 44 and focusing attention on the rear movable claw 103, when the screw member 43 is loosened, if only the screw member 43 receives the reaction force and moves forward, both the movable claws 102 and 103 The relative motion of cannot be obtained. On the other hand, when such a head presser 44 is provided, both the movable claws 102 and 103 are surely separated from each other by using this as a foothold, so that the top plate 2 can be reliably removed. it can.

  And since both the edge parts of the top plate 2 are each attached to the top-plate receptacle 1x of a pair of legs 1 and 1 arrange | positioned in parallel using such a top-plate attachment structure, one leg 1 Since the top plate 2 is not dragged when the top plate 2 is attached to the head, the situation where the top plate b rotates horizontally as shown in FIG. 10 and the positional relationship between the engaging portion and the opening is slightly deviated effectively is eliminated. It becomes possible to do.

  The specific configuration of each unit is not limited to the above-described embodiment.

  For example, the tip of the movable claw is bent in the opposite direction, and the movable claw is moved relative to each other in a direction away from each other so as to be engaged with the back edge (the far edge) of the slit as the opening. Also good.

  Further, by using the above-described top plate mounting structure, the corresponding portions of the top plate 200 may be attached to the top plate receivers 100x and 100x of the pair of crossed legs 100 and 100 as shown in FIG. It is valid. Here, though not shown, the movable claws similar to the movable claws 101 and 102 as the first and second engaging portions described above, and the slits similar to the slits 202 and 203 which are opened are provided on the top plate receiver 100x side and the top plate. It is provided on the 200 side, and positioning protrusions and recesses are provided on the top plate receiver 100x side and the top plate 200 side.

  According to this, as shown in FIG. 11, when the top plate edge d1 of one leg c1 is attached, the top plate d is not dragged as indicated by the arrow Y1 in the drawing, and the other leg c2 and the top plate edge are not dragged. Since there is no inconvenience that the influence as shown by the arrow Y2 in the drawing reaches the portion d2, the top plate 200 can be properly attached to the leg 100 between any leg 100 and the edge of the top plate 200. It becomes possible.

  Other configurations can be variously modified without departing from the spirit of the present invention.

1 is a perspective view of a desk to which an embodiment of the present invention is applied. The disassembled perspective view which shows the relationship between the top plate and leg which comprise the desk. The expansion perspective view of the leg of FIG. FIG. 4 is an exploded perspective view of FIG. 3. The partial longitudinal cross-sectional view of a leg. The figure which shows the mode of the attachment of the top plate to a leg. Action | operation explanatory drawing of the top-plate attachment structure in the embodiment. The perspective view which shows the rear surface of the same leg. The perspective view which shows the other example of application of this invention. The figure for demonstrating the malfunction of the conventional attachment structure. The figure for demonstrating the malfunction of the conventional attachment structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1x ... Top plate holder 2 ... Top plate 4 ... Drive mechanism 41b ... Through-hole 42b ... Screw hole 43 ... Screw member 43a ... Head 44 ... Head presser 43x ... Rotation force input end 44a ... Opening window 102 ... First engagement Mating part (front movable claw)
103 ... 2nd engaging part (rear movable nail)
202, 203 ... opening (slit)
X: Fixed part (concave / convex related part)

Claims (7)

When the top plate is attached to the top plate holder, the first and second engaging portions can be moved relative to each other in the direction toward or away from each other through the screw feeding operation by the drive mechanism, upward from the top plate holder. The drive mechanism is arranged so as to be freely movable in the screw feed direction together with both engaging portions in a state in which no screw feed operation is performed, and an opening is provided on the lower surface of the top plate. By inserting both engaging portions into the screw and screwing them by the driving mechanism, the top plate is attached to the top plate holder by engaging the two engaging portions with the nearest edge portion or the opposite edge portion of the opening portion. A top plate mounting structure characterized by that. The top plate mounting structure according to claim 1, wherein a fixing portion for fixing the top plate to the top plate support in a screw feeding direction is provided between the top plate and the top plate support. The top plate mounting structure according to claim 2, wherein the fixing portion is a concave-convex related portion formed between the top plate and the top plate support when the top plate is placed on the top plate support. The drive mechanism is provided with a through hole in the first engagement portion, a screw hole is provided in the second engagement portion, and the screw member passes through the first engagement portion to the second engagement portion. The top plate mounting structure according to claim 1, which is screwed together. The screw member is provided with a rotational force input end at the head, and is configured to perform screw feeding by rotating in a state where a part is pressed against a retainer provided at the first engaging portion. A head presser is provided in the first engaging portion adjacent to the head, and the head presser has an inner dimension smaller than the head for opening the rotational force input end to the rotational force input side. The top plate mounting structure according to claim 4, wherein a small open window is provided. A furniture with a top plate, wherein both the edge portions of the top plate are attached to the top plate supports of a pair of legs arranged in parallel using the top plate mounting structure according to claim 1. 6. A furniture with a top plate, wherein a corresponding portion of the top plate is attached to a top plate support of a pair of cross-arranged legs using the top plate mounting structure according to claim 1.

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