JP2018075112A - Opening/closing lid device and furniture with top plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the vibration and noise caused when closing a lid body for opening and closing an opening at low cost.SOLUTION: A wiring cover device 10 includes: a wiring cover 2 for closing a notch recess 15 for the cover in an opening/closing manner; a frame member 3 provided in a circumferential edge of the notch recess 15 for the cover and supporting the wiring cover 2 around a support shaft 72 in a turning manner; a projection piece 68 formed in the wiring cover 2 and projected toward the direction to be separated from a back side of a top plate 11; and a sliding contact part 372 formed in the frame member 3, and reducing a turning speed of the wiring cover 2 by that the projection piece 68 is made to slide when the wiring cover 2 is turned around the support shaft 72 and is shifted to a closed state from an open state.SELECTED DRAWING: Figure 13

Description

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

  Some fixtures with a top plate such as a desk have an opening in the top plate in order to guide the wiring of an electronic device or the like installed on the top plate below the top plate. By inserting the wiring or the like through the opening in the vertical direction of the top plate, it is possible to prevent the periphery of the top plate-equipped fixture from being complicated by the wiring.

  For example, Patent Document 1 discloses a configuration in which an opening / closing lid (duct cover) that enables opening / closing of the opening / closing lid is provided in an opening formed in the top plate. According to such a configuration, the appearance can be improved by opening the opening / closing lid when the wiring is inserted through the opening, and closing the opening / closing lid to close the opening when unnecessary.

JP 2014-144225 A

However, when closing the opening / closing lid, if the opening / closing lid abuts against a stopper piece provided on the peripheral edge of the opening, vibration and noise may occur. In the configuration disclosed in Patent Document 1, vibration and noise are suppressed by externally fitting a buffer member made of synthetic resin to the stopper piece, but further improvement is required.
On the other hand, in order to suppress vibration and noise when closing with the opening / closing lid, it may be possible to provide an impact absorbing damper device or the like, but the cost increases.
An object of the present invention made there is to provide an opening / closing lid device and a top panel-equipped fixture that can suppress vibration and noise generated when closing an opening / closing lid that opens and closes an opening at low cost.

The present invention employs the following means in order to solve the above problems.
The opening / closing lid device according to the present invention is an opening / closing lid device which is provided in an opening portion penetrating in the plate thickness direction of the plate-like body and is capable of opening and closing the opening portion. The opening / closing lid device includes a lid main body that covers the opening so as to be openable / closable, a frame member that is provided at a peripheral edge of the opening, and that supports the lid main body so as to be rotatable around a support shaft; Formed on the frame member, and a projecting piece projecting in a direction away from the back side of the plate-like body, and the lid body rotates around the support shaft to shift from the open state to the closed state And a sliding contact member that decelerates the rotational speed of the lid body by sliding the protruding piece.

  According to such a configuration, when the lid body rotates around the support shaft and shifts from the open state to the closed state, the protruding piece and the sliding contact member slide, so that the protruding piece and the sliding contact member Friction resistance is generated during This frictional resistance reduces the rotational speed of the lid body. As a result, the closing operation of the lid body is made smooth without using costly shock absorbing dampers, etc., and when the lid body closes, it collides with the frame member etc., and vibration and noise are generated. Can be suppressed.

  In the opening / closing lid device according to the present invention, in the above-described opening / closing lid device, the protruding pieces are provided at both end portions in the axial direction of the support shaft in the lid body, and the sliding contact member is provided in the frame member. The support shafts may be provided at both ends in the axial direction.

  According to such a configuration, when the lid main body is in the open state, the protruding piece or the sliding contact member does not protrude in the gap between the lid main body and the frame member. Can be suppressed.

  In the opening / closing lid device according to the present invention, in the opening / closing lid device, the protruding piece and the slidable contact member are arranged in a radial direction around the support shaft when the lid body is in the closed state. It may be arranged so as to face each other, and one of the projecting piece and the sliding contact member may be elastically deformable in a radial direction around the support shaft.

  According to such a configuration, when the lid body rotates around the support shaft and shifts from the open state to the closed state, if the projecting piece and the sliding contact member slide, the projecting piece or the sliding contact member is elastic. Deform. When the protruding piece or the sliding contact member is elastically deformed, a frictional force generated between the protruding piece and the sliding contact member is increased by a restoring force (repulsive force) that attempts to return to the original shape. As a result, the rotation speed of the lid body is more effectively reduced.

  In the opening / closing lid device according to the present invention, in the opening / closing lid device, one of the projecting piece and the sliding contact member can be elastically deformed in the radial direction when the weight of the lid body acts. May be.

  According to such a configuration, the lid body can be closed only by its own weight. Therefore, the lid body is automatically closed without pushing the lid body in the closing direction.

  In the opening / closing lid device according to the present invention, in the opening / closing lid device, the protruding piece has a locking claw that can be engaged with the sliding contact member when the lid body is in the closed state. You may make it.

  According to such a configuration, when the lid main body is in the closed state, the lid main body can be locked in the closed state by the engagement claw of the protruding piece engaging the sliding contact member.

  In the opening / closing lid device according to the present invention, in the opening / closing lid device, the frame member slidably supports the lid body along the plate-like body and in a direction intersecting the support shaft. A guide part may be provided that extends in a sliding direction of the lid body, and the lid body may be configured such that the protruding piece is in sliding contact with the guide part when the lid body slides in the sliding direction.

  According to such a configuration, when the lid body slides, the lid body is stably supported by the support shaft and the protruding piece that is in sliding contact with the guide portion.

  In the opening / closing lid device according to the present invention, in the above-described opening / closing lid device, the guide portion moves in a closing direction of the lid body by abutting against the lid body when the lid body is in the closed state. You may make it regulate.

  According to such a configuration, the closed lid body is firmly supported by the support shaft and the guide portion.

  In the opening / closing lid device according to the present invention, in the opening / closing lid device, when the lid body slides in the sliding direction, the lid body comes into contact with the guide portion from the fully open state. Alternatively, a slightly open state with a small opening may be maintained.

  According to such a configuration, when the lid body is slid, the lid body is in a slightly opened state with a smaller opening degree than the fully opened state, so that wiring or the like is inserted through the gap between the lid body and the frame member. It can be left as it is.

  A fixture with a top plate according to the present invention includes a top plate in which an opening is formed, and the opening / closing lid device provided in the opening so as to be openable and closable.

  According to such a configuration, the closing operation of the lid body can be made smooth, and it is possible to suppress the occurrence of vibration and noise by colliding with the frame member or the like when the lid body closes.

  According to the opening / closing lid device and the top plate-equipped fixture according to the present invention, it is possible to suppress vibration and noise generated when closing the lid body that opens and closes the opening at low cost.

It is a perspective view which shows the whole structure of the fixture with a top plate which concerns on one Embodiment of this invention. It is a perspective view which shows the wiring cover apparatus provided in the said fixture with a top plate. It is a perspective sectional view showing the state where the wiring cover of the above-mentioned wiring cover device was opened. It is a perspective developed view which shows the structure of the said wiring cover apparatus. It is sectional drawing when the said wiring cover apparatus is made into a closed state. It is an expanded sectional view which shows the principal part of FIG. It is a perspective view which shows the structure of the cover base | substrate which comprises the said wiring cover. It is a perspective view which shows the elastic obstruction | occlusion cover which comprises the said wiring cover. It is a perspective view which shows the frame member which comprises the said wiring cover. It is a perspective view which shows the relationship between the guide groove formed in the said frame member, and a slide member. It is a perspective developed view showing the relationship between the guide groove, the slide member, and the lid base. It is sectional drawing which shows the state which slid the said wiring cover. It is sectional drawing which shows the state in the middle of shifting the said wiring cover from an open state to a closed state. It is sectional drawing when the said wiring cover is made into an open state. It is a perspective view which shows the flow of the attachment method of the holding member of the optional member to the said fixture with a top plate.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an opening / closing lid device and a top board-equipped fixture according to embodiments of the present invention will be described based on the drawings.
FIG. 1 is a perspective view showing an overall configuration of a tabletop fixture according to an embodiment of the present invention. FIG. 2 is a perspective view showing a wiring cover device provided in the fixture with the top plate. FIG. 3 is a perspective sectional view showing a state in which the wiring cover of the wiring cover device is opened. FIG. 4 is an exploded perspective view showing a configuration of the wiring cover device. FIG. 5 is a cross-sectional view when the wiring cover device is in a closed state. FIG. 6 is an enlarged cross-sectional view showing a main part of FIG. FIG. 7 is a perspective view showing a configuration of a lid base constituting the wiring cover. FIG. 8 is a perspective view showing an elastic closing cover constituting the wiring cover. FIG. 9 is a perspective view showing a frame member constituting the wiring cover. FIG. 10 is a perspective view showing the relationship between the guide groove formed in the frame member and the slide member. FIG. 11 is an exploded perspective view showing the relationship between the guide groove, the slide member, and the lid base. FIG. 12 is a cross-sectional view showing a state in which the wiring cover is slid. FIG. 13 is a cross-sectional view showing a state in the middle of shifting the wiring cover from the open state to the closed state. FIG. 14 is a cross-sectional view when the wiring cover is opened. FIG. 15 is a perspective view showing a flow of a method for attaching the grip member of the optional member to the table-top fixture.

  As shown in FIG. 1, a desk (a fixture with a top plate) 1 is arranged on the top plate (plate-like body) 11 and a floor surface F with a space between each other, and supports the top plate 11 so that it can be moved up and down. A pair of top plate support legs 12 and 12 configured to be extendable in the direction Dv, and a wiring cover device (open / close lid device) 10 provided on the top surface (working surface) 11a of the top plate 11 so as to be openable and closable. doing.

  Here, in the present embodiment, a direction in which the pair of top plate support legs 12 and 12 are separated from each other by the floor surface F is referred to as a width direction Dh, and a direction orthogonal to the width direction Dh in a plan view viewed from above is a front-back direction. It is called Df. Moreover, in the front-rear direction Df of the desk 1, the side where the user sits on the chair and faces the desk 1 is referred to as the front and the front, and the opposite side is referred to as the rear and the rear.

  The top plate support leg 12 has a lower cylindrical body 12A and an upper cylindrical body 12B. The lower cylindrical body 12A and the upper cylindrical body 12B are each formed in a rectangular cylindrical shape extending in the vertical direction Dv. The upper cylindrical body 12B is accommodated in the lower cylindrical body 12A. The top plate support leg 12 includes a driving mechanism (not shown) such as a motor, and the upper cylindrical body 12B is moved in the vertical direction Dv with respect to the lower cylindrical body 12A by this driving mechanism. The plate support leg 12 can be expanded and contracted in the vertical direction Dv.

  A lower support 13 is provided at the lower end of the top plate support leg 12. The lower support 13 is disposed on the floor surface F, extends parallel to the floor surface F, and forward and rear. An adjuster 13 a that adjusts the height and level of the lower support 13 is provided on the lower surface of the lower support 13. The top plate support leg 12 is disposed slightly rearward from the center portion of the lower support 13. The lower cylindrical body 12A of the top plate support leg 12 is fixed from the lower surface side of the lower support body 13 with a bolt 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 leg 12. The upper support 14 is fixed to the upper end portion of the upper cylindrical body 12B and extends in the front-rear direction Df. The top plate 11 is fixed from below the upper support 14 with bolts or the like.

  As shown in FIG. 1 and FIG. 2, the rear end (outer peripheral end) 11r of the central portion of the top plate 11 in the width direction Dh penetrates in the plate thickness direction (vertical direction Dv) of the top plate 11 and A cover notch recess (opening) 15 that opens toward the rear, which is the outside of the plate 11, is formed. The cover notch recess 15 is a rectangular opening that is long in the width direction Dh. The wiring cover device 10 is fitted in the cover notch recess 15. The wiring cover device 10 includes a wiring cover (lid body) 2 which will be described later, and the wiring cover 2 is rotated as shown in FIGS. Can be opened and closed.

  As shown in FIG. 4, the wiring cover device 10 includes a wiring cover 2 and a frame member 3 that supports the wiring cover 2 so as to be rotatable and slidable in the front-rear direction Df.

As shown in FIG. 5, the wiring cover 2 covers the upper and rear sides of the cover notch recess 15 so as to be openable and closable, and includes a cover body 20, a lid base 50, and an elastic closing cover 60. Yes.
The wiring cover 2 has a configuration in which the cover body 20 is externally fitted so as to cover at least the upper surface of the lid base 50, and an elastic blocking cover 60 that protrudes forward from the front end of the cover body 20 and the lid base 50 is mounted. It has become.

The cover main body 20 includes a cover top plate 21, a cover rear plate 22 that covers the rear wall portion 52 of the lid base 50, and a cover locking piece 23 provided on the front end lower surface of the cover top plate 21.
In the present embodiment, the cover body 20 is made of a metal material having rigidity such as steel.

The cover top plate 21 forms a continuous surface with the top surface 11 a of the top plate 11 of the desk 1 in a closed state in which the cover notch recess 15 is closed with the wiring cover 2.
The cover rear plate 22 is in a closed state in which the cover notch recess 15 is closed by the wiring cover 2 (and is not slid forward) 11r (see FIG. 1 and FIG. 1). 2), a continuous surface is formed. The cover rear plate 22 is integrally provided with a rear locking wall 24 that extends forward from the lower end of the cover rear plate 22 and covers the lower surface of the rear end of the lid base 50. The rear locking wall 24 is formed with a locking hole 24 a for locking a claw portion 50 t formed on the rear lower surface of the lid base 50.

As shown in FIG. 6, the cover locking piece 23 has a vertical wall 231 extending downward from the lower surface of the cover top plate 21 and an overhanging wall 232 extending forward from the lower end of the vertical wall 231 when the wiring cover 2 is closed. And an extending part 234 extending forward from the upper end of the vertical wall 231.
The cover locking piece 23 is joined to the lower surface of the cover top plate 21 with the extending portion 234 being along.

  As shown in FIGS. 5 and 7, the lid base 50 extends downward from the bottom wall 51 disposed in parallel below the cover top surface plate 21 of the cover body 20 that is externally fitted, and the rear end of the bottom wall 51. The rear wall portion 52, the side wall portions 53, 53 located on both sides of the bottom wall 51 in the width direction Dh, the lid engaging portion 54 that connects the front end portions of the pair of side wall portions 53, and the rear end of the side wall portion 53 And a shaft support hole 55 provided on the side.

  The bottom wall 51 is provided with a plurality of ribs 51r and 51r extending from the upper surface and extending along the width direction Dh. The upper ends of the rear wall portion 52 and the side wall portions 53 abut against the lower surface of the cover top plate 21 of the cover body 20 that is externally fitted to the lid base 50.

As shown in FIG. 6, the lid engaging portion 54 has a front rib 541 and a rear rib 542 that extend in the width direction Dh and are spaced apart from each other in the front-rear direction Df, and the upper ends of the front rib 541 and the rear rib 542 are fully extended. And a connecting wall 543 connected to each other.
The rear rib 542 is disposed at a predetermined interval from the front end 51 f of the bottom wall 51. The predetermined interval is set to a dimension that allows the protruding wall 232 of the cover locking piece 23 to be inserted and substantially matches the thickness dimension of the vertical wall 231.

Further, the cover engaging piece 23 of the cover body 20 is fitted into the lid engaging portion 54 from the outside. Specifically, in a state in which the cover locking piece 23 is externally fitted to the lid engaging portion 54, the extension portion 234 of the cover locking piece 23 comes into contact with the connecting wall 543 from above and the rear rib 542 is covered with the cover. The vertical wall 231 of the stop piece 23 abuts from behind.
Thus, the cover body 20 is attached to the lid base 50 by fitting the cover locking piece 23 from the outside of the lid engaging portion 54.
In the cover body 20 attached to the lid base 50, the front end 21 b of the cover top plate 21 protrudes forward from the front rib 541 of the lid engaging portion 54 of the lid base 50.

The elastic closing cover 60 is formed between the front end 21b of the cover top plate 21 of the cover body 20 and the front end face of the cover notch recess 15 in a state where the wiring cover 2 closes the cover notch recess 15 of the desk 1. It is arranged so as to cover the gap.
As shown in FIG. 8, the elastic closing cover 60 extends in the width direction Dh and is attached to the lid base 50 and protrudes forward from the front end portion 61 a of the attachment base 61 to have a comb-like shape. Are provided with a plurality of elastic arm members 62, 62,..., And knobs 63 that are connected to the front sides of both end portions of the mounting base 61 in the width direction Dh.

As shown in FIG. 6, the mounting base 61 is formed so that the thickness dimension in the vertical direction Dv is larger than that of the elastic arm member 62. Accordingly, an inclined surface 61f is formed on the lower surface of the mounting base 61 so as to be gradually inclined downward from the elastic arm member 62 side toward the rear.
Further, the mounting base 61 is formed with an upper surface engaging groove 66 that is recessed downward and is continuous in the width direction Dh. Further, the mounting base 61 is formed with a rear surface engaging groove 67 that is recessed forward and is continuous in the width direction Dh on the rear end surface.

In such an elastic closing cover 60, the mounting base 61 is fitted into a portion surrounded by the front rib 541, the rear rib 542, and the connecting wall 543 formed in the lid engaging portion 54 of the lid base 50. Specifically, the front rib 541 is inserted into the upper surface engaging groove 66 of the mounting base 61, and the overhanging wall 232 of the cover locking piece 23 is inserted into the rear surface engaging groove 67 formed in the mounting base 61. ing.
In this way, the elastic closing cover 60 has the mounting base 61 firmly held by the lid base 50 and the cover body 20.
At this time, the mounting base 61 of the elastic closing cover 60 is sandwiched between the front rib 541 and the rear rib 542 in the front-rear direction Df, so that the movement in the front-rear direction Df is restricted. Further, the mounting base 61 is sandwiched between the connecting wall 543 and the overhanging wall 232 in the vertical direction Dv, so that the movement in the vertical direction Dv is restricted.

As shown in FIGS. 3, 5, and 6, the mounting base 61 of the elastic closing cover 60 is formed with protruding pieces 68 at both ends in the width direction Dh. The protruding piece 68 includes a base 681 extending downward from the lower surface of the mounting base 61 (from the upper surface 11a (front surface) side to the back surface side of the top plate 11), and a locking claw protruding forward from the lower end of the base 681. 682 are integrally provided.
As shown in FIG. 6, the locking claw 682 is formed so that the thickness in the vertical direction Dv gradually decreases toward the front end 682a. A curved surface 682f that is inclined upward toward the front end 682a is formed on the lower surface of the locking claw 682.

The elastic closing cover 60 is made of a rubber material or a soft resin material, and the elastic arm members 62, 62,... And the protruding piece 68 are elastically deformable.
Here, as shown in FIG. 3, the protruding piece 68 has a horizontally long rectangular shape in plan view, which is long in the width direction Dh and short in the front-rear direction Df. Thereby, the protruding piece 68 is easily elastically deformed in the front-rear direction.

As shown in FIG. 9, the frame member 3 has a U-shape in plan view, and has a front wall portion 31 and a pair of side wall portions 32, 32 facing the peripheral edge portion of the cover cutout recess 15.
The front wall portion 31 extends in the width direction Dh. A through hole 31h through which a screw (not shown) is inserted is formed in the front wall portion 31.
A pair of side wall parts 32 and 32 are extended in the front-back direction Df from the both ends of the width direction Dh of the front wall part 31, and are opposed at intervals in the width direction Dh.

  As shown in FIGS. 3 and 9, the front wall portion 31 and the upper end portions of the side wall portions 32 and 32 protrude outward from the cover cutout recess 15 along the upper surface 11 a of the top plate 11. An edge 33 is formed. The edge portion 33 is locked on the upper surface 11 a of the top plate 11 with the front wall portion 31 and the side wall portions 32, 32 along the peripheral edge portion of the cover cutout recess 15.

  As shown in FIG. 9, rear wall portions 34 that extend outward in the width direction Dh are integrally formed at the rear end portions of the side wall portions 32 and 32, respectively. The rear wall 34 abuts against the rear end 11r of the top plate 11.

A stay 35 that extends and extends outward in the width direction Dh is integrally formed at the lower ends of the side walls 32, 32. The stay 35 is formed with a through hole 35h through which a screw (not shown) for fixing to the lower surface of the top plate 11 is inserted.
Such a frame member 3 includes a through-hole 31h formed in the front wall portion 31 and a stay 35 in a state where the front wall portion 31 and the side wall portions 32, 32 are opposed to the peripheral edge portion of the cover cutout recess 15. Screws (not shown) are respectively inserted into the through holes 35h formed in the upper plate 11 and fastened to the top plate 11 to be fixed.

  As shown in FIGS. 9 and 10, the pair of side wall portions 32, 32 of the frame member 3 are respectively guides extending in the front-rear direction Df on the surface facing the inner side in the width direction Dh of the cover notch recess 15. Each groove 36 is formed.

  As shown in FIGS. 10 and 11, the wiring cover 2 is connected to such a frame member 3 via a pair of slide members 70 and 70 so as to be rotatable and slidable in the front-rear direction Df. . The slide member 70 integrally includes a base portion 71 accommodated in a guide groove 36 formed in the side wall portion 32 of the frame member 3 and a support shaft 72 provided at the rear end of the base portion 71.

  The base 71 is formed to be slightly smaller than the width of the guide groove 36 in the vertical direction Dv and shorter than the length of the guide groove 36 in the front-rear direction Df so as to fit inside the guide groove 36. The base portion 71 is slidable in the front-rear direction Df while being accommodated in the guide groove 36. Here, in the slide member 70, the locking protrusions 71 a provided on the upper and lower sides of the base portion 71 are locked by locked slits (not shown) formed in the guide groove 36, so that the guide groove 36. It is possible to slide in the front-rear direction Df along the guide groove 36 in a state where it does not fall off.

The support shaft 72 is formed in the base portion 71 so as to protrude inward in the width direction Dh of the cover cutout recess 15. The support shaft 72 is inserted into a shaft support hole 55 formed in the lid base 50 of the wiring cover 2, and is connected so as to be rotatable within the shaft support hole 55.
Such a slide member 70 has a locking claw 72a provided at the distal end portion of the support shaft 72 and is locked to a locked portion (not shown) provided in the shaft support hole 55, thereby The shaft support hole 55 is rotatably connected to the support hole 55 in a state in which the dropout from the support hole 55 is prevented.

In this way, the wiring cover 2 is rotatable about the support shaft 72 by being connected to the slide member 70 via the support shaft 72 so as to be rotatable. That is, the support shaft 72 constitutes a rotation mechanism 75 that rotatably supports the wiring cover 2 around the support shaft 72 extending in the width direction Dh that connects opposite sides of the cover notch recess 15.
Further, the base portion 71 of the slide member 70 connected via the support shaft 72 slides along the guide groove 36, so that the wiring cover 2 can be slid in the front-rear direction Df. That is, the guide groove 36 and the base portion 71 of the slide member 70 constitute a slide mechanism 76 that supports the wiring cover 2 so as to be slidable in the front-rear direction Df along the top plate 11 and intersecting the support shaft 72. .

As shown in FIG. 9, a receiving member 37 is integrally formed on the pair of side wall portions 32, 32 at a position in front of the guide groove 36. The receiving members 37 are formed at both ends of the frame member 3 in the width direction Dh.
The receiving member 37 is integrally formed with a guide portion (guide member) 371 extending in the front-rear direction Df and a sliding contact portion (sliding contact member) 372 that hangs downward from the rear end of the guide portion 371.

  As shown in FIG. 12, in the guide portion 371, when the wiring cover 2 slides forward, the protruding piece 68 of the elastic closing cover 60 slides on the upper surface 371f. As shown in FIG. 6, the upper surface 371 f of the guide portion 371 has a front support surface 373 that extends in the front-rear direction Df and supports the knob 63 so as to complement the shape of the lower surface of the elastic closing cover 60, and the front-rear direction. A rear support surface 374 that extends to Df and supports the lower surface of the mounting base 61, and an inclined support surface that extends obliquely upward toward the front and supports the inclined surface 61f between the front support surface 373 and the rear support surface 374 375.

  As shown in FIG. 5, the sliding contact portion 372 is suspended from the rear end portion of the rear support surface 374. The sliding contact portions 372 are arranged to face each other in the radial direction with the support shaft 72 as the center with respect to the protruding piece 68 when the wiring cover 2 is in the closed state. A guide surface 372 a that is inclined or curved obliquely downward toward the rear is formed at the upper end of the sliding contact portion 372.

As shown in FIG. 13, such a sliding contact portion 372 is formed at the lower end portion of the protruding piece 68 (when the wiring cover 2 rotates around the support shaft 72 and shifts from the open state to the closed state. The locking claw 682) slides. Thereby, a frictional resistance is generated between the protruding piece 68 and the sliding contact portion 372. The rotational speed of the wiring cover 2 is reduced by this frictional resistance.
Further, when the protruding piece 68 and the sliding contact portion 372 slide, the protruding piece 68 (the front end portion 682a of the locking claw 682 formed at the lower end portion thereof) is pressed by the sliding contact portion 372 and elastically deformed. When the protruding piece 68 is elastically deformed, a restoring force (repulsive force) for returning to the original shape acts forward. This restoring force increases the frictional force generated between the protruding piece 68 and the sliding contact portion 372.
Here, it is preferable that the protruding piece 68 is elastically deformable in the radial direction around the support shaft 72 when a rotational moment due to the weight of the wiring cover 2 acts. By configuring in this way, the wiring cover 2 can be closed only by its own weight.

  Further, when the wiring cover 2 rotates around the support shaft 72 and shifts from the open state to the closed state, first, the locking claw 682 formed at the lower end portion of the protruding piece 68 is the upper end portion of the sliding contact portion 372. It strikes against the guide surface 372a. At this time, the guide surface 372a is inclined or curved obliquely downward toward the rear, and a curved surface 682f inclined upward toward the front end portion 682a is formed on the lower surface of the locking claw 682. Thus, the latching claw 682 is prevented from being caught by the sliding contact portion 372, and can be smoothly moved in the closing direction (downward). Further, since the locking claw 682 is formed so that the thickness in the vertical direction Dv gradually decreases toward the front end portion 682a, it easily elastically deforms when slidably contacting the sliding contact portion 372, and the wiring The cover 2 is not hindered from rotating in the closing direction.

As shown in FIG. 6, when the wiring cover 2 rotated so as to shift from the open state to the closed state hits the guide portions 371 provided on both sides in the width direction Dh, the wiring cover 2 is completely closed. At this time, the locking claw 682 of the protruding piece 68 is engaged with the lower end of the sliding contact portion 372. Thereby, the wiring cover 2 is locked in the closed state.
In this closed state, the wiring cover 2 is supported at the front end side by guide portions 371 provided on both sides in the width direction Dh, and the rear end side is supported by the frame member 3 via the support shaft 72.

  As shown in FIG. 12, when the wiring cover 2 slides in the front-rear direction Df, the rear end of the wiring cover 2 extends in the front-rear direction along the guide groove 36 in which the slide member 70 is formed in the frame member 3. Slide to Df. Further, the protruding piece 68 is in sliding contact with the front end portion of the wiring cover 2 along the upper surfaces of the rear support surface 374, the inclined support surface 375, and the front support surface 373 of the upper surface of the guide portion 371. As a result, the wiring cover 2 is maintained in a slightly open state in which the opening degree is smaller than that in the fully opened state during sliding.

  In this way, when the wiring cover 2 slides forward (inward of the top plate 11) along the front-rear direction Df, which is a direction intersecting the support shaft 72, the gripping member is moved backward in the sliding direction of the wiring cover 2. An insertion space S is formed. Thus, even if the top plate 11 of the desk 1 is installed so as to be pressed against the wall surface or the panel body P or the like, if the wiring cover 2 is slid forward, the wiring cover 2 and the wiring A holding member insertion space S can be formed between the wall surface of the cover 2 in the sliding direction and the panel body P.

A tray member 4 is provided below the wiring cover device 10.
The tray member 4 is provided below the cover cutout recess 15. The tray member 4 is formed so as to face the lower surface of the top plate 11, and an article placement unit 41 on which an article can be placed on the upper surface, and a rear side facing the outside of the top plate 11 in the article placement unit 41. A rising wall portion 42 that is continuously formed and rises upward, and a front rising wall 44 that rises upward from the front end portion of the article placement portion 41 are provided. The rising wall portion 42 has an inclined surface 43 that is inclined upward toward the outer side of the top plate 11. The tray member 4 is fixed in contact with the lower surface of the top plate 11.

  As shown in FIG. 14, the inclined surface 43 of such a tray member 4 can be provided with an outlet 100, other connection connectors, and the like. Thus, with the wiring cover 2 opened, the connection plug 102 provided at the tip of the wiring 101 of the electronic device or the like used on the top plate 11 is easily connected to the outlet 100 provided on the inclined surface 43. be able to.

  In such a tray member 4, a position where the rear end portion 4 r facing the outer side (rear side) of the top plate 11 is offset to the inner side (front side) of the top plate 11 with respect to the rear end 11 r of the top plate 11. Is arranged. Accordingly, the tray member 4 forms a grip member insertion space S behind the rear end portion 4r of the tray member 4 inside the cover cutout recess 15. The grip member insertion space S is formed behind the wiring cover 2 when it is slid forward as described above.

Next, a method for attaching the option member 200 to the desk 1 as described above will be described. That is, the holding member 201 for fixing the option member 200 to the top plate 11 can be inserted through the holding member insertion space S.
In order to attach the optional member 200 to the desk 1, first, as shown in FIG. 15, the wiring cover 2 is slid inward of the top plate 11 along the direction intersecting the support shaft 72, that is, forward. By doing so, the holding member insertion space S is formed behind the wiring cover 2 in the sliding direction.

Next, the holding member 201 for fixing the option member 200 to the top plate 11 is inserted into the formed holding member insertion space S from the upper side to the lower side (arrow A1 in FIG. 15).
Next, the grip member 201 is slid along the rear end 11r of the top plate 11 adjacent in the width direction Dh from the grip member insertion space S to the cover notch recess 15 (arrow A2 in FIG. 15).

  When the gripping member 201 reaches a desired position at the rear end 11r of the top plate, the gripping member 201 is fixed to the rear end 11r of the top plate 11 by tightening a clamp screw 202 or the like as shown in FIG. .

The wiring cover device 10 as described above is provided in the cover notch recess 15 penetrating in the plate thickness direction of the top plate 11 so that the cover notch recess 15 can be opened and closed. The wiring cover device 10 is provided at the periphery of the wiring cover 2 that covers the cover notch recess 15 so as to be openable and closable, and the cover notch recess 15, and supports the wiring cover 2 so as to be rotatable around a support shaft 72. The frame member 3 is formed on the wiring cover 2, and is formed on the frame member 3 and the protruding piece 68 that protrudes in the direction away from the back surface side of the top plate 11 (downward). A sliding contact portion 372 that reduces the rotational speed of the wiring cover 2 is provided by sliding the protruding piece 68 when it rotates around and shifts from the open state to the closed state.
According to such a configuration, when the wiring cover 2 rotates around the support shaft 72 and shifts from the open state to the closed state, the projecting piece 68 and the sliding contact portion 372 slide, whereby the projecting piece 68. A frictional resistance force is generated between the contact portion 372 and the sliding contact portion 372. The rotational speed of the wiring cover 2 is reduced by this frictional resistance. As a result, the closing operation of the wiring cover 2 can be made smooth, and the occurrence of vibration and noise caused by collision with the frame member 3 or the like when the wiring cover 2 is closed can be suppressed. As a result, the operation of the wiring cover device 10 can overflow with a high-class feeling.

  The protruding pieces 68 are provided at both ends of the wiring cover 2 in the axial direction (width direction Dh) of the support shaft 72, and the sliding contact portions 372 are formed in the axial direction (width) of the support shaft 72 in the frame member 3. It is provided at both ends in the direction Dh). According to such a configuration, when the wiring cover 2 is in the open state, the protruding piece 68 and the sliding contact portion 372 project in the inner region in the width direction Dh in the gap between the wiring cover 2 and the frame member 3. Therefore, it is possible to suppress an obstacle when the wiring is passed through the gap.

  The protruding piece 68 and the sliding contact portion 372 are arranged so as to face each other in the radial direction around the support shaft 72 when the wiring cover 2 is in the closed state. It can be elastically deformed in the radial direction around the center. According to such a configuration, when the wiring cover 2 rotates around the support shaft 72 and shifts from the open state to the closed state, when the protruding piece 68 and the sliding contact portion 372 slide, the protruding piece 68 is Elastically deforms. When the protruding piece 68 is elastically deformed, a frictional force generated between the protruding piece 68 and the sliding contact portion 372 increases due to a restoring force (repulsive force) that attempts to return to the original shape. Thereby, the rotational speed of the wiring cover 2 is reduced more effectively.

  Further, the protruding piece 68 is elastically deformable in the radial direction when the weight of the wiring cover 2 acts. According to such a configuration, the wiring cover 2 can be closed only by its own weight. Therefore, the wiring cover 2 is automatically closed without pushing the wiring cover 2 in the closing direction.

  Further, the protruding piece 68 has a locking claw 682 that can be engaged with the sliding contact portion 372 when the wiring cover 2 is in a closed state. According to such a configuration, when the wiring cover 2 is in the closed state, the locking claw 682 of the protruding piece 68 is engaged with the sliding contact portion 372 so that the wiring cover 2 is locked in the closed state. Can do.

In addition, the frame member 3 supports the wiring cover 2 so as to be slidable in a direction along the top plate 11 and intersecting the support shaft 72. The sliding contact portion 372 has a guide portion 371 extending in the sliding direction of the wiring cover 2. Further, in the wiring cover 2, the projecting piece 68 comes into sliding contact with the guide portion 371 when the wiring cover 2 slides in the sliding direction.
According to such a configuration, when the wiring cover 2 slides, the wiring cover 2 is stably supported by the support shaft 72 and the protruding piece 68 that is in sliding contact with the guide portion 371.

  In addition, the guide portion 371 restricts the movement of the wiring cover 2 in the closing direction by abutting against the wiring cover 2 when the wiring cover 2 is in the closed state. According to such a configuration, the closed wiring cover 2 is firmly supported by the support shaft 72 and the guide portion 371.

  In addition, when the wiring cover 2 slides in the sliding direction, the wiring cover 2 is held in a slightly opened state with a smaller opening than the fully opened state because the protruding piece 68 is in sliding contact with the guide portion 371. According to such a configuration, when the wiring cover 2 is slid, the wiring cover 2 is brought into a slightly open state, so that the wiring or the like is inserted in the gap between the wiring cover 2 and the frame member 3. be able to.

The desk as described above includes the top plate 11 in which the cover notch recess 15 is formed, and the wiring cover device 10 provided in the cover notch recess 15 so as to be openable and closable.
According to such a configuration, the closing operation of the wiring cover 2 can be made smooth, and it is possible to suppress the occurrence of vibration and noise by colliding with the frame member 3 and the like when the wiring cover 2 is closed. . As a result, the desk 1 can be enriched.

  In this way, according to the above-described wiring cover device 10 and desk 1, the vibration and noise generated when closing the wiring cover 2 that opens and closes the notch recess 15 for the cover is used with an expensive shock absorbing damper or the like. Therefore, it can be suppressed at a low cost.

(Other embodiments)
In addition, the opening / closing lid device and the top plate-equipped fixture of the present invention are not limited to the above-described embodiment described with reference to the drawings, and various modifications are conceivable within the technical scope thereof.
For example, in the above embodiment, the protruding piece 68 is elastically deformable, but the sliding contact portion 372 may be formed to be elastically deformable.
Further, although the wiring cover device 10 is provided in the cover notch recess 15 formed in the top plate 11, the wiring cover device 10 is provided on various plate-like bodies other than the top plate 11, such as a wall body. Also good.
Further, the cover notch recess 15 provided with the wiring cover device 10 is formed at the rear end 11r of the top plate 11, but is formed at other parts such as the side end and the front end of the top plate 11. There may be.
Furthermore, you may make it provide the wiring cover apparatus 10 in the opening part formed inward other than the outer peripheral edge part of plate-like bodies, such as the top plate 11. FIG.
In addition to this, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate without departing from the gist of the present invention.

1 Desk (top plate with furniture)
2 Wiring cover (lid body)
3 Frame member 4 Tray member 10 Wiring cover device (open / close lid device)
11 Top plate (plate)
11a Top surface (work surface)
11r Rear end (outer end)
15 Notch recess for cover (opening)
36 guide groove 37 receiving member 41 article placing portion 42 rising wall portion 43 inclined surface 68 projecting piece 70 slide member 72 support shaft 75 rotating mechanism 76 slide mechanism 100 outlet 101 wiring 200 optional member 201 gripping member 371 guide portion (guide member)
371f Upper surface 372 Sliding part (sliding member)
681 Base 682 Locking claw 682a Front end 682f Curved surface Df Front-rear direction Dh Width direction Dv Vertical direction F Floor surface S Gripping member insertion space

Claims (9)

An opening / closing lid device provided in an opening penetrating in the plate thickness direction of the plate-like body, and capable of opening and closing the opening,
A lid body for closing the opening so as to be openable and closable;
A frame member provided at a peripheral portion of the opening, and rotatably supporting the lid body around a support shaft;
A protruding piece that is formed on the lid body and protrudes in a direction away from the back side of the plate-like body;
Formed on the frame member, when the lid body rotates around the support shaft and shifts from the open state to the closed state, the projecting piece slides to reduce the rotational speed of the lid body. A sliding contact member;
An opening / closing lid device comprising: The protruding pieces are provided at both ends in the axial direction of the support shaft in the lid body,
The opening / closing lid device according to claim 1, wherein the sliding member is provided at both ends of the frame member in the axial direction of the support shaft. The protruding piece and the sliding contact member are arranged so as to face each other in a radial direction around the support shaft when the lid body is in the closed state,
3. The opening / closing lid device according to claim 1, wherein one of the projecting piece and the sliding contact member is elastically deformable in a radial direction around the support shaft.   4. The opening / closing lid device according to claim 3, wherein one of the protruding piece and the sliding contact member is elastically deformable in the radial direction when the weight of the lid main body acts.   5. The opening / closing lid according to claim 1, wherein the protruding piece has a locking claw that can be engaged with the sliding contact member when the lid body is in the closed state. apparatus. The frame member is
The lid body is slidably supported in a direction along the plate-like body and intersecting the support shaft,
A guide portion extending in a sliding direction of the lid body;
6. The opening / closing lid device according to claim 1, wherein when the lid body slides in the sliding direction, the protruding piece is in sliding contact with the guide portion.   The opening / closing lid device according to claim 6, wherein when the lid body is in the closed state, the guide portion restricts movement of the lid body in the closing direction by abutting against the lid body.   When the lid body slides in the sliding direction, the lid body is held in a slightly opened state with a smaller opening than the fully opened state by sliding the projecting piece to the guide portion. 8. The opening / closing lid device according to 7. A top plate in which an opening is formed;
An opening / closing lid device according to any one of claims 1 to 8, wherein the opening / closing lid device is provided in the opening so as to be openable and closable.

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