JP2021037367A - Opening/closing lid device, and store fixture with top plate - Google Patents

Abstract

To provide an opening/closing lid device having an opening/closing lid easily attachable to/detachable from an opening part, and capable of suppressing unintended removal of the opening/closing lid in the state where the opening/closing lid is opened; and to provide a store fixture with a top plate.SOLUTION: In an opening/closing lid device, on a closing position for blocking a lid opening part by a lid body 50, a length along a width direction of an insertion opening part 55C of slipping-out stop parts 37, 38 is shorter than an opening width w1 of the insertion opening part 55C, and on an opening position for opening the lid opening part by the lid body 50, a length w3 along the width direction of the insertion opening part 55C of the slipping-out stop parts 37, 38 is longer than the opening width w1 of the insertion opening part 55C.SELECTED DRAWING: Figure 17

Description

The present invention relates to an opening / closing lid device and a fixture with a top plate.

In office spaces such as offices and public facilities, furniture with a top plate is generally provided to provide a work surface to the workers. In such fixtures with a top plate, a wiring insertion portion is often formed to guide the wiring connected to the electronic device used on the top plate surface (working surface) to the lower side of the top plate of the fixture. ..

Further, in the structure of such furniture, an opening is provided on the top plate to form an opening forming the wiring insertion portion at the time of the work of inserting the wiring. Further, there is also known a fixture having a configuration in which a wiring cover is attached so that the opening formed by the opening can be opened and closed so that the wiring can be used as a top plate surface after the wiring insertion work is completed.

As a structure provided with such a wiring cover, a structure in which the wiring cover is placed on a support portion provided in the fixture so as to close the wiring insertion portion (see, for example, Patent Document 1), or a locked lock provided in the fixture. A structure or the like is adopted in which the wiring cover is attached to the fixture by locking the locking portion provided on the wiring cover.

Further, Patent Documents 2 to 4 below disclose a configuration in which a wiring cover is rotatably supported by a fixture about a rotation axis facing in the left-right direction to rotatably close the wiring insertion portion. .. According to these structures, the wiring cover can be securely attached to the fixture even though it has a simple structure.

Further, when the table tap is arranged in the wiring space or when a large-scale wiring work is performed, the wiring cover may be removed from the opening for the work in order to improve the workability. Therefore, a configuration has been proposed in which the opening / closing lid is removable from the opening while the opening / closing lid is opened to a predetermined position (see Patent Document 5 below).

Japanese Patent No. 4621003 Japanese Patent No. 5981211 Japanese Patent No. 5997429 Japanese Patent No. 4639779 Japanese Patent No. 6019145

However, in the configuration disclosed in Patent Document 5, the opening / closing lid may be unintentionally removed during the opening / closing operation of the opening / closing lid.

The present invention has been made in view of the above circumstances, and the opening / closing lid can be easily attached to / detached from the opening, and the opening / closing lid is prevented from being unintentionally removed when the opening / closing lid is open. It provides equipment and fixtures with a top plate.

In order to achieve the above object, the present invention employs the following means.
That is, the opening / closing lid device according to the present invention is an opening / closing lid device provided at a lid opening that opens in the plate thickness direction of a plate-like body and can open / close the lid opening, and opens / closes the lid opening. A lid body that can be closed and a support shaft that is provided on either the lid body or the peripheral edge side of the lid opening and extends in the axial direction, and the other of the lid body and the peripheral edge side of the lid opening. The lid body and the other side of the lid opening on the peripheral edge side are provided with an engaging portion provided and arranged along the circumferential direction of the support shaft, and the support shaft is rotatably held. The support shaft engages with the engaging portion as the lid body rotates from a closed position that closes the lid opening to an open position that opens the lid opening.

Further, in the opening / closing lid device according to the present invention, a plurality of the engaging portions may be arranged along the circumferential direction of the support shaft.

Further, in the opening / closing lid device according to the present invention, the lid body may be provided with a rotation restricting portion that regulates the rotation range of the support shaft.

In the opening / closing lid device configured in this way, since the lid main body is provided with a rotation restricting portion that regulates the rotation range of the support shaft, the rotation of the lid main body is restricted.

Further, the fixture with a top plate according to the present invention includes a top plate on which a lid opening is formed, and the opening / closing lid device according to any one of the above, which is provided in the lid opening so as to be openable / closable. It is characterized by.

In the fixture with a top plate configured in this way, the support shaft provided on one of the lid main body and the frame member is held by the support shaft holding portion provided on the other side of the lid main body and the frame member. Since the support shaft holding portion holds the support shaft rotatably, the lid body (opening / closing lid) can be attached to the frame member, and the lid body can be opened and closed by rotating the lid body around the support shaft with respect to the frame member. it can.
In the closed position, the length of the retaining portion along the width direction of the insertion opening is shorter than the opening width of the insertion opening. Therefore, with the lid main body arranged along the closed position, the lid main body can be attached to the frame member by inserting the retaining portion provided on the support shaft into the insertion opening.
On the other hand, at the open position, the length of the retaining portion along the width direction of the insertion opening is longer than the opening width of the insertion opening. Therefore, in the open position, the retaining portion does not fall out from the insertion opening. Therefore, in the open position where the lid body is opened, the lid body is prevented from being unintentionally removed.

According to the opening / closing lid device and the fixture with a top plate according to the present invention, the opening / closing lid can be easily attached / detached to the opening, and the opening / closing lid is prevented from being unintentionally removed while the opening / closing lid is open.

It is a perspective view seen from the oblique rear which shows the whole structure of the desk by embodiment of this invention. It is a perspective view of the wiring cover device provided on the top plate of a desk. It is an exploded perspective view of the wiring cover device shown in FIG. It is a top view of the wiring cover device. FIG. 5 is a cross-sectional view taken along the line AA shown in FIG. It is a partially cutaway perspective view of the wiring cover device shown in FIG. It is a perspective view which looked at the lid body of a wiring cover diagonally from the front. It is a side view of the lid main body of a wiring cover. It is the main part perspective view which disassembled the lid main body and the frame member of a wiring cover. It is a perspective view which looked at the connection part of the lid main body of a wiring cover and a frame member from the bottom. It is a perspective view which looked at the elastic block cover of a wiring cover diagonally from the front. It is a front view which saw a part of the elastic occlusion cover from the front. It is a perspective view which saw the frame member diagonally from the front. It is a side view of a frame member. It is a perspective view of the open position in a wiring cover device. It is a vertical sectional view of the closed position in a wiring cover device. It is a vertical sectional view of an open position in a wiring cover device. It is a vertical sectional view of the maximum open position in a wiring cover device. It is the main part perspective view which disassembled the lid main body and the frame member of the wiring cover of the desk by the modification 1 of the Embodiment of this invention. It is (a) the vertical sectional view of the closed position and (b) the vertical sectional view of the open position in the wiring cover device of the desk according to the modification 2 of the Embodiment of this invention. It is a perspective view of the wiring cover device provided on the top plate of the desk by the modification 3 of the Embodiment of this invention.

Hereinafter, the opening / closing lid device and the fixture with the top plate according to the embodiment of the present invention will be described with reference to the drawings.

The desk 1 (furniture with a top plate) according to the present embodiment shown in FIG. 1 can accommodate outlets in the fixture, can easily perform wiring work, and is further connected from the outlet accommodated in the fixture. The take-out portion of the wiring 16 (see FIG. 2) has a simple structure.
The desk 1 is arranged on the top plate 11 and the floor surface F at intervals from each other, supports the top plate 11 so as to be able to move up and down, and is configured to be able to expand and contract in the vertical direction Dv. 12 and a wiring cover device (opening / closing lid device) 10 provided on the upper surface 11a of the top plate 11 so as to be openable / closable.

Here, in the present embodiment, the separation direction of the pair of top plate support legs 12, 12 arranged on the floor surface F in one direction parallel to the floor surface F is referred to as the width direction Dh, and is viewed from above. The direction orthogonal to the width direction Dh in the plan view is called the front-rear direction Df. Further, in the front-rear direction Df of the desk 1, the side facing the desk 1 while sitting on a chair is referred to as the front side and the front side, and the opposite side is referred to as the rear side and the rear side.

The top plate support leg 12 has a lower tubular body 12A and an upper tubular body 12B. The lower tubular body 12A and the upper tubular body 12B are each formed in a quadrangular tubular shape extending in the vertical direction Dv. The upper tubular body 12B is housed inside the lower tubular body 12A. The top plate support leg 12 is provided with a drive mechanism (not shown) such as a motor, and the upper tubular body 12B is moved in the vertical direction Dv with respect to the lower tubular body 12A by this drive mechanism. The plate support legs 12 can be expanded and contracted in the vertical direction Dv.

A lower support body 13 is provided at the lower end of the top plate support leg 12. The lower support 13 is arranged on the floor surface F and extends parallel to the floor surface F in the front and rear directions. An adjuster 13a for adjusting the height and level of the lower support 13 is provided on the lower surface of the lower support 13. The top plate support legs 12 are arranged slightly rearward from the central portion of the lower support body 13. The lower tubular body 12A of the top plate support leg 12 is fixed from the lower surface side of the lower support 13 by bolts or the like.
An upper support 14 that supports the top plate 11 from below is provided at the upper end of the top plate support legs 12. The upper support 14 is fixed to the upper end of the upper tubular body 12B and extends in the front-rear direction Df. The top plate 11 is fixed by bolts or the like from below the upper support 14.

At the rear end of the central portion of the top plate 11 in the width direction Dh, an opening (lid opening) 15 is formed so as to face rearward and open in the plate thickness direction (vertical direction). The opening formed by the opening 15 has a longer Dh in the width direction than the Df in the front-rear direction. The wiring cover device 10 is fitted in the opening 15, and the opening formed by the opening 15 is arranged so as to be covered by the wiring cover 2 described later. That is, for example, an outlet is arranged on the tray 4 provided on the lower side of the top plate 11 and constitutes the wiring accommodating portion, and the wiring 16 connected to the outlet is taken out from the opening 15 to the upper surface 11a of the top plate 11 and topped. Wiring to OA equipment (not shown) used on the plate 11 is possible.

As shown in FIGS. 2 and 3, the wiring cover device 10 includes a wiring cover 2, a frame member 3 that rotatably supports the wiring cover 2, and a tray 4 arranged below the opening 15. Have.

As shown in FIGS. 3 and 4, the wiring cover 2 closes the opening formed by the opening 15 at the rear end of the top plate 11 so as to be openable and closable. It includes an elastic closing cover 60. The wiring cover 2 has a configuration in which the cover main body 20 is fitted so as to cover at least the upper surface of the lid main body 50, and the cover main body 20 and the elastic closing cover 60 projecting forward from the front end portion of the lid main body 50 are attached. It has become.

As shown in FIGS. 5 and 6, the cover body 20 of the wiring cover 2 is provided on the cover top plate 21, the cover rear plate 22 that covers the rear end of the lid body 50, and the lower surface of the front end of the cover top plate 21. It has a cover engaging piece 23 and.
The cover top plate 21 forms a continuous surface on the upper surface 11a of the top plate 11 of the desk 1 in a state (closed position) in which the space is closed by the wiring cover 2. The cover rear plate 22 is arranged so as to be located at the rear end of the top plate 11 of the desk 1 in a state where the space is closed by the wiring cover 2.
Further, in the present embodiment, a rigid metal member such as steel is adopted as the member of the cover main body 20. In the cover rear plate 22, a rear locking wall 24 that covers the lower surface of the rear end of the lid body 50 extends forward from the lower end of the cover rear plate 22. The rear locking wall 24 is formed with a locking hole 24a for locking a claw portion formed on the rear lower surface of the lid main body 50.

As shown in FIGS. 5 and 7, the lid main body 50 extends downward from the bottom wall 51 arranged parallel to the lower side of the cover top plate 21 of the outerly fitted cover main body 20 and the rear end of the bottom wall 51. The rear wall portion 52, the side wall portions 53 and 53 located on both sides of the bottom wall 51 in the width direction Dh, the lid engaging portion 54 connecting the front end portions of the pair of side wall portions 53, and the rear end of the side wall portion 53. It has a rotation-supported portion 55 provided on the side.
The bottom wall 51 is provided with a plurality of ribs 51a and 51a that rise from the upper surface and extend along the width direction Dh, and are arranged at intervals from the cover top plate 21 of the cover main body 20. The upper ends of the rear wall portion 52 and the both side wall portions 53 are in contact with the lower surface of the cover top plate 21 of the cover main body 20 fitted to the lid main body 50.

The cover engaging piece 23 of the cover body 20 is fitted into the lid engaging portion 54 from the outside. The cover main body 20 is attached to the lid main body 50 by fitting the lid engaging portion 54 from the outside into the cover engaging piece 23. Then, the lid engaging portion 54 for fitting the rear end portion of the elastic closing cover 60 is sandwiched by the cover main body 20 from the outer peripheral side, so that the elastic closing cover 60 is firmly attached to the front end portion of the lid main body 50.

As shown in FIGS. 7 to 10, the side wall portion 53 has a first recessed portion (rotating recess) 55A centered in a direction along the width direction Dh (hereinafter, axial direction O) and a first recessed portion 55A. It has a second recessed portion (support shaft holding portion) 55B which is smaller in shape and is formed coaxially with the first recessed portion 55A.

The first recessed portion 55A and the second recessed portion 55B communicate with the downward insertion opening 55C of the side wall portion 53. Let w1 be the opening width dimension (dimension of Df in the front-rear direction) of the insertion opening 55C.

The first concave portion 55A includes a first curved surface portion 551 and a second curved surface portion 552 formed in an arc shape, and a locking wall portion 535 and 554 formed at both ends of the first curved surface portion 551 and extending inward in the radial direction. A locking wall portion 555 formed at an end portion of the second curved surface portion 552 on the first curved surface portion 551 side and extending inward in the radial direction.

A plurality of engaging recesses 558 recessed in the width direction Dh are formed in the bottom portion 557 of the first recessed portion 55A along the circumferential direction in the axial direction O.

The second recessed portion 55B is formed in an arc shape centered on the axial direction O, and communicates with the insertion opening 55C at the lower portion. At the lower part of the second recessed portion 55B, engaging pieces 561, 561 are provided so as to narrow the opening width of the insertion opening 55C. The engaging piece 561 is arranged apart from the bottom portion 562 of the second recessed portion 55B in the width direction Dh.

In the width direction Dh, a third recessed portion 55D that communicates with the second recessed portion 55B and extends radially outward is provided between the bottom portion 557 of the first recessed portion 55A and the engaging piece 561.

As shown in FIGS. 5, 11 and 12, the elastic cover 60 is formed entirely of elastic members such as rubber, and the cover main body is in a state where the wiring cover 2 closes the space of the opening 15 of the desk 1. It is arranged so as to cover the gap between the front end portion of 20 and the front end surface of the opening 15.
The elastic closing cover 60 extends forward in the width direction Dh and is engaged with the lid engaging portion 54 (see FIG. 7) of the lid main body 50 on the rear end side, and forward from the front end portion 61a of the mounting base 61. A plurality of elastic arm members 62, 62, ... Protruding and formed in a brush shape, and an opening / closing operation portion 63 connected to each front end portion 61a of both end portions of the mounting base portion 61 in the width direction Dh are provided. ..

The mounting base 61 is formed on the base main body 611, the upper concave groove 612 formed on the upper surface of the base main body 611 and engaged with the lid engaging portion 54 of the lid main body 50, and the cover main body 20 formed at the rear end of the base main body 611. It has a rear concave groove 613 to be engaged, and a hanging locking piece 614 extending downward from the rear end at each of both ends of the base body 611 in the width direction Dh. A fitting convex portion 61A to be fitted into the lid engaging portion 54 is formed at a position between the upper concave groove 612 and the rear concave groove 613 in the mounting base 61.

As shown in FIGS. 11 and 12, the plurality of elastic arm members 62, 62, ... Have a predetermined interval along the width direction Dh between the opening / closing operation units 63, 63 arranged on both sides of the width direction Dh. They are arranged open. The front portions 62a of the plurality of elastic arm members 62, 62, ... Are placed on the receiving flange portion 33 (see FIG. 5) of the frame member 3 together with the opening / closing operation portions 63, 63 when the cover is closed. The elastic arm member 62 has a vertically elliptical shape in a cross-sectional view seen from the protruding direction (front-back direction Df) of the elastic arm member 62, and the horizontal dimension d1 in the width direction Dh is smaller than the vertical dimension d2 in the vertical direction Dv. Is set to. Each elastic arm member 62 has no change in cross section in the front-rear direction Df and extends in the same cross section. By making the cross-sectional shape of the elastic arm member 62 vertically long in this way, the structure is strong against a load from above, and even if an article is placed on the elastic closing cover 60, it is not easily deformed and flatness can be maintained. ..
Further, the separation dimension d3 between the elastic arm members 62 and 62 adjacent to each other in the width direction Dh is smaller than the lateral dimension d1 of the elastic arm members 62. Therefore, when a plurality of elastic arm members 62, 62, ... Are viewed from the oblique width direction, the line of sight (for example, arrow E in FIG. 12) can be blocked by the elastic arm members 62, and these elastic arm members 62, It becomes difficult to see the lower part of 62, ...

The opening / closing operation portion 63 has a shape recessed inward from the upper surface of the elastic closing cover 60, and is continuously provided with the front end portion 61a of the mounting base portion 61. Specifically, the upper surface 63a of the opening / closing operation unit 63 is formed with a curved surface 63b that gradually projects upward from the outside to the inside at the inner end portion 63A in the width direction Dh. In the opening / closing operation unit 63, the upper end 63c of the inner end portion 63A is set at the same height as the plurality of elastic arm members 62, 62, ..., And the outer end portion 63B is arranged at a position lower than the upper surface of the mounting base 61. There is.
As a result, with the wiring cover 2 closing the opening 15, the upper surface 63a of the opening / closing operation unit 63 is recessed lower than the upper surface of the wiring cover 2 and the top plate 11 of the desk 1. A finger is inserted into the wire to make it easier to catch the finger.

Next, the configuration of the frame member 3 fitted in the opening 15 formed in the top plate 11 of the desk 1 and for mounting the wiring cover 2 will be described in detail.
As shown in FIGS. 13 to 15, the frame member 3 has a front frame 31 extending in the width direction Dh, side frames 32 and 32 connected to both ends of the front frame 31, and a U-shape. It is formed in a frame and is assembled to the opening 15 (see FIG. 2) of the top plate 11 by bolts and screws (not shown).
A wiring cover 2 is rotatably attached to the side frames 32, 32 of the frame member 3. The frame member 3 can be manufactured by injection molding of a resin such as ABS, polyacetal, polypropylene or polyethylene terephthalate.

The frame member 3 projects from the upper ends of the front frame 31 and the pair of side frames 32, 32 toward the plate surface of the top plate 11, and also projects from the rear ends of the pair of side frames 32, 32 toward the rear surface of the top plate 11. A frame collar portion 3a that projects in the direction is formed. As a result, when the frame member 3 is attached to the opening 15 of the desk 1, the frame collar portion 3a is arranged so as to overlap the edge of the opening 15 from above, so that the frame member 3 and the top plate 11 are arranged. The gap can be eliminated.

As shown in FIGS. 5 and 6, the front frame 31 is provided with a flange portion 33 that projects rearward from the intermediate portion of the vertical Dv on the rear surface and extends over the entire length direction. On the upper surface 33a of the receiving collar portion 33, the front portions 62a of the plurality of elastic arm members 62, 62, ... Of the wiring cover 2 and the front portions of the pair of opening / closing operation portions 63, 63 are placed from above. The position of the receiving collar portion 33 in the vertical direction Dv is set so that the elastic arm member 62 and the opening / closing operation portion 63 are arranged substantially horizontally and at least do not project upward from the upper end of the frame member 3. That is, in the wiring cover 2, the position where the elastic arm member 62 and the opening / closing operation unit 63 are placed on the upper surface 33a of the receiving collar portion 33 is the closed position, and the position where the rotation of the wiring cover 2 for closing is stopped. ..

As shown in FIGS. 13 to 15, the side frame 32 includes an engaging portion 34 provided on the front portion of the inner surface 32a and engaging with the hanging locking piece 614 (see FIG. 11) of the elastic closing cover 60. It has a support shaft 35 provided at the rear portion of the inner surface 32a and supported by the rotation-supported portion 55 of the wiring cover 2.

As shown in FIGS. 9, 10, 13 and 15, the support shaft 35 is arranged along the axial direction O. The support shaft 35 has substantially the same size as the inner circumference of the second recessed portion 55B of the lid main body 50, and is rotatably held by the second recessed portion 55B.

In the support shaft 35, a projecting piece 36 projecting upward is provided on the base end portion (side frame 32) side of the tip end portion. The projecting piece 36 is arranged in the third recessed portion 55D of the lid main body 50.

The base end portion of the support shaft 35 is provided with a retaining piece (retaining portion) 37 that protrudes from the inner surface of the side frame 32 in the width direction Dh and extends downward from the lower portion of the support shaft 35. The end portion 37a of the retaining piece 37 is formed in a curved shape.

On the base end side of the support shaft 35, an engaging piece (retaining portion) 38 extending upward from the upper portion of the support shaft 35 is provided. The engaging piece 38 is arranged with a gap in the width direction Dh from the side frame 32. The end portion 38a of the engaging piece 38 is formed in a curved shape.

In the engaging piece 38, an engaging convex portion 39 projecting in the width direction Dh is provided on the surface of the engaging piece 38 facing the lid main body 50. A through hole 40 penetrating in the width direction Dh is provided below the engaging convex portion 39 of the engaging piece 38. The engaging convex portion 39 can be engaged with the engaging concave portion 558 provided in the lid main body 50.

The retaining piece 37 and the engaging piece 38 are arranged in the first recessed portion 55A of the lid main body 50.

As shown in FIG. 3, the tray 4 includes a bottom plate 41, a front plate 42, and a rear plate 43, and both sides in the width direction Dh are open. A slit-shaped insertion opening 41a is formed in the bottom plate 41. The front plate 42 is arranged with the plate surface facing up and down, and the upper end 42a is fixed to the lower surface of the top plate 11 of the desk 1 with bolts, screws, or the like (not shown). Further, the rear plate 43 has an inclined surface that inclines from the front to the rear as it goes upward. The upper end of the rear plate 43 is fixed to the lower surface of the top plate 11 of the desk 1 with bolts, screws, or the like (not shown) so that the upper end of the rear plate 43 is located in front of the rear end of the wiring cover 2.

Next, a method of attaching the wiring cover 2 to the frame member 3 will be described.
As shown in FIG. 16, the wiring cover 2 is moved from above to below with respect to the frame member 3 in a state where the wiring cover 2 is aligned with the closing position direction (the direction in which the opening 15 is closed). The support shaft 35 (see FIG. 14) of the frame member 3 is inserted into the insertion opening 55C of the lid body 50. At this time, when the pair of engaging pieces 561 (see FIG. 8) are elastically deformed in the direction of being separated from each other and the support shaft 35 is arranged in the second recessed portion 55B (see FIG. 8), the engaging pieces 561 Returns to its original position. Since the engaging piece 561 is arranged apart from the bottom portion 562 (see FIG. 10) of the second recessed portion 55B in the width direction Dh, it is easily elastically deformed.

At the closed position, the dimension (length dimension along the width direction of the insertion opening 55C) w2 of the retaining piece 37 and the engagement piece 38 of the frame member 3 in the front-rear direction is the opening of the insertion opening 55C of the lid body 50. It is shorter than the width dimension (dimension of Df in the front-rear direction) w1. Therefore, the retaining piece 37 and the engaging piece 38 of the frame member 3 can insert the insertion opening 55C of the lid main body 50.

In this state, the end portion 38a of the engaging piece 38 of the frame member 3 is in contact with the locking wall portion 554 of the first recessed portion 55A of the lid main body 50. As a result, the rotation of the lid body 50 in the direction in which the front end portion is directed downward is restricted, and the lid body 50 can easily be kept in a horizontal state.

Next, the rotation operation of the wiring cover 2 will be described.
As shown in FIG. 17, the wiring cover 2 can be rotated around the support shaft 35 to open the wiring cover 2. As the wiring cover 2 rotates, the engaging protrusions 39 provided on the frame member 3 are sequentially engaged with the plurality of engaging recesses 558 provided on the lid body 50, and a click feeling is obtained.

At the open position, the length dimension w3 along the width direction of the insertion opening 55C in the retaining piece 37 and the engagement piece 38 of the frame member 3 is longer than the opening width dimension w1 of the insertion opening 55C of the lid body 50.
Therefore, in this state, the retaining piece 37 and the engaging piece 38 of the frame member 3 do not fall off from the insertion opening 55C of the lid main body 50.

Further, as shown in FIG. 18, the wiring cover 2 can be further rotated around the support shaft 35, and the wiring cover 2 can be arranged at the maximum open position. At this position, the end portion 37a of the retaining piece 37 of the frame member 3 comes into contact with the locking wall portion (edge portion, rotation restricting portion) 555 of the first recessed portion 55A of the lid body 50, and the frame member 3 The end portion 38a of the engaging piece 38 is in contact with the locking wall portion (edge portion, rotation restricting portion) 553 of the first recessed portion 55A of the lid body 50.

In the desk 1 configured in this way, the support shaft 35 provided on the frame member 3 is held by the second recessed portion 55B provided on the lid main body 50. Since the second recessed portion 55B rotatably holds the support shaft 35, the lid body (opening / closing lid) 50 is attached to the frame member 3, and the lid body 50 is rotated around the support shaft 35 with respect to the frame member 3. It can be moved to open and close.
At the closed position, the length dimension w2 along the width direction of the insertion opening 55C in the retaining piece 37 and the engagement piece 38 is shorter than the opening width dimension w1 of the insertion opening 55C. Therefore, with the lid body 50 arranged along the closed position, the retaining piece 37 and the engaging piece 38 provided on the support shaft 35 are inserted into the insertion opening 55C, and the lid body 50 is inserted into the frame member 3. Can be attached to. On the other hand, at the open position, the length dimensions w3 and w4 along the width direction of the insertion opening 55C of the retaining piece 37 and the engagement piece 38 are longer than the opening width dimension w1 of the insertion opening 55C. Therefore, in the open position, the retaining piece 37 and the engaging piece 38 do not fall off from the insertion opening 55C. Therefore, it is possible to prevent the lid body 50 from being unintentionally removed at the open position where the lid body 50 is opened.

Further, the retaining piece 37 and the engaging piece 38 provided on the frame member 3 are inserted into the insertion opening 55C from below the lid main body 50. Therefore, the lid main body 50 can be moved from above to downward with respect to the frame member 3, and the lid main body 50 can be attached to the frame member 3. When the lid body is moved from the bottom to the top with respect to the frame member, a load such as the weight of the lid body may act on the lid body and the lid body may fall off from the frame member. Since the main body 50 is moved from above to below with respect to the frame member 3 and attached, the lid main body 50 does not fall off from the frame member 3 due to the load from above assumed when used as the top plate 11.

Further, since the lid body 50 is provided with locking wall portions 535 and 555 that regulate the rotation of the support shaft 35, the rotation range of the lid body 50 is restricted.

Further, at the maximum opening position where the lid body 50 opens the opening 15 to the maximum, the locking wall portions 535 and 555 of the first recessed portion 55A formed continuously in the insertion opening 55C in the lid body 50. The rotation of the support shaft 35 is restricted by the contact between the retaining piece 37 and the ends 37a and 38a of the engaging piece 38. Therefore, the rotation restricting portion can be configured by a simple structure.

Further, on the side of the retaining piece 37 and the engaging piece 38 facing the lid main body 50, an engaging convex portion 39 projecting toward the lid main body 50 side is provided, and the retaining piece 37 and the engagement piece 37 in the first recessed portion 55A are engaged. A plurality of engaging recesses 558 are formed along the circumferential direction of the support shaft 35 on the side facing the unit 38. Therefore, when the lid main body 50 rotates, the engaging convex portion 39 sequentially engages with the plurality of engaging concave portions 558, so that a click feeling can be obtained.

(Modification example 1)
Modification 1 of the embodiment shown above will be described mainly with reference to FIG.
In the following modification, the same members as those used in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 19, a plurality of engaging convex portions 563 protruding inward in the radial direction are formed on the peripheral surface 560 of the first concave recessed portion 55A of the lid main body 50 at intervals in the circumferential direction. The engaging piece 38 provided at the base end of the support shaft 35 of the frame member 3 is formed with an engaging recess 38b that is recessed inward in the radial direction. As the wiring cover 2 rotates, the engaging recesses 38b provided in the frame member 3 are sequentially engaged with the plurality of engaging protrusions 563 provided in the lid body 50, and a click feeling is obtained.

(Modification 2)
Further, the shape of the retaining portion 371 provided on the support shaft 35 is not limited to the above embodiment. As shown in FIG. 20 (a), at the closed position, the length w2 of the retaining portion 371 along the width direction of the insertion opening 55C is shorter than the opening width w1 of the insertion opening 55C, and FIG. 20 (b) shows. As shown in the above, the length w3 along the width direction of the insertion opening 55C in the retaining portion 371 may be longer than the opening width w1 of the insertion opening 55C at the opening position.

(Modification example 3)
Further, although the opening 15 is formed along the rear end of the top plate 11, the opening may be formed so as to be separated from the end of the top plate 11. That is, the opening 15X may be formed between the front end and the rear end of the top plate 11 and between the left and right ends. In this case, the frame member 3X of the wiring cover device 10X is formed in a square frame shape in a plan view.

Although the embodiment of the wiring cover and the fixture with the top plate according to the present invention has been described above, the present invention is not limited to the above embodiment and can be appropriately changed without departing from the spirit of the present invention. ..

For example, in the embodiment shown above, the support shaft and the retaining portion are provided on the frame member, and the support shaft holding portion and the insertion opening are provided on the lid body, but the present invention is not limited to this, and the support is not limited to this. The shaft and the retaining portion may be provided on the lid body, and the support shaft holding portion and the insertion opening may be provided on the frame member.

Further, in the embodiment shown above, the frame member 3 is provided in the opening 15 of the top plate 11, but the present invention is not limited to this. The support shaft and the retaining portion may be provided directly on the peripheral edge of the opening of the top plate without providing the frame member 3.

Further, in the present embodiment, the application target to which the wiring cover 2 is provided is the top plate 11 (working surface) of the desk 1, but the object is not limited to the desk 1 and is another fixture provided with the working surface. You may.

In addition, it is possible to replace the components in the above-described embodiment with well-known components as appropriate without departing from the spirit of the present invention.

1 Desk (furniture with top plate)
2 Wiring cover 3 Frame member 4 Tray 10 Wiring cover device (opening and closing lid device)
11 Top plate 11a Top surface 15 Opening (lid opening)
20 Cover body 33 Receiving collar 34 Engagement 35 Support shaft 37 Retaining piece (retaining part)
38 Engagement piece (retaining part)
39 Engagement convex part 50 Lid body 55 Rotating supported part 55A First concave recessed part (rotating concave part)
55B Second recessed part (support shaft holding part)
55C Insertion opening 60 Elastic block cover 61 Mounting base 62 Elastic arm 63 Opening and closing operation part 533,555 Locking wall part (edge part, rotation regulation part)
Dv Vertical direction Dh Width direction Df Front-back direction F Floor surface O Axial direction

Claims (4)

An opening / closing lid device provided at a lid opening that opens in the plate thickness direction of a plate-like body and that can open and close the lid opening.
The lid body that closes the lid opening so that it can be opened and closed,
A support shaft provided on either the lid body or the peripheral edge side of the lid opening and extending in the axial direction,
A lid body and an engaging portion provided on the other side of the lid opening on the peripheral edge side and arranged along the circumferential direction of the support shaft are provided.
The lid body and the other side of the lid opening on the peripheral edge side hold the support shaft rotatably.
An opening / closing lid device characterized in that the support shaft engages with the engaging portion as the lid body rotates from a closed position for closing the lid opening to an opening position for opening the lid opening. The opening / closing lid device according to claim 1, wherein a plurality of engaging portions are arranged along the circumferential direction of the support shaft. The opening / closing lid device according to claim 1 or 2, wherein the lid body is provided with a rotation restricting portion that regulates the rotation range of the support shaft. The top plate with the lid opening and
A fixture with a top plate, comprising the opening / closing lid device according to any one of claims 1 to 3, which is provided in the lid opening so as to be openable / closable.

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