JP4244181B2 - Duct cover and furniture using the duct cover - Google Patents

Description

  The present invention relates to a duct cover that closes an opening that can accommodate wiring cords, and furniture that is applied to the duct cover and is preferably used in an office or the like.

2. Description of the Related Art Conventionally, a duct cover is applied to an opening on an upper surface of a wiring duct provided at the rear part of a desk top plate so as to close the opening. Specifically, this duct cover is composed of a duct cover body integrally formed by extrusion molding with a hard cover body made of a hard resin and a soft cover body made of a soft resin, and a hard resin that supports the duct cover body. A duct cover support. And when the said opening part is obstruct | occluded, it is comprised so that the upward surface of a hard cover body and the upward surface of a soft cover body may be exposed and used for the surface (for example, refer patent document 1).
Japanese Patent Laid-Open No. 2002-136345 (pages 2 and 3, FIG. 7)

  However, in the conventional duct cover, since the hard cover body and the soft cover body exposed on the surface are integrally formed by extrusion, it is difficult to obtain the smoothness of the upward surface of the hard cover body. As it looked worse. Further, even when the hard cover body is formed by injection molding in order to obtain the smoothness of the surface and the soft cover body is formed separately by extrusion molding, when the hard cover body and the soft cover body are engaged, The attachment part of the soft cover body is bent, and not only cannot be engaged well, but there is also a problem that the attachment strength remains uneasy.

  The present invention has been made paying attention to such a problem, and the main object is to ensure a good appearance as furniture, and a hard cover body made of a hard resin and a soft cover made of a soft resin. The object is to provide a high-performance duct cover that can be easily attached to and detached from the body.

  That is, the duct cover of the present invention is for closing the opening of the furniture body, and has a hard cover provided with an upward surface exposed to the surface when the opening is closed and formed of a hard resin. A body, a soft cover body having an upward surface exposed to the surface when the opening is closed and formed of a soft resin, and a first member formed of a hard resin and detachably engaged with each other A combination element and a second engagement element, wherein one of the first engagement element and the second engagement element is formed integrally with the hard cover body, and the other is integrated with the soft cover body. Forming the first engagement element and the second engagement element to integrally form the hard cover body and the soft cover body to close the opening, and The upward surface is exposed on the surface Characterized in that it constitutes a so that.

  If it is such, if the hard cover body is formed by injection molding, for example, the smoothness of the upward surface of the hard cover body can be secured, and the appearance can be improved. Further, since both the first engagement element and the second engagement element are made of hard resin, the first engagement element and the second engagement element can be easily engaged with each other, and the hard cover Easy to attach body and soft cover body. Further, the mounting strength can be increased as compared with a soft cover body made of only a soft resin. Furthermore, even if the soft cover body falls, it can be easily replaced. Moreover, the duct cover provided with the soft cover body of a different color and shape can be provided at low cost.

  That is, even if the duct cover is applied to the furniture body, it is possible to secure a good appearance as furniture, and to attach and remove the hard cover body and the soft cover body easily, and to add a high value added duct cover. Can be provided.

  In order to manufacture easily and inexpensively, the soft cover body, and the engagement element formed integrally with the soft cover body among the first engagement element and the second engagement element, It is desirable that they are formed integrally by extrusion molding.

  In addition, an engagement element formed integrally with the soft cover body among the first engagement element and the second engagement element is provided at a position where it can be concealed by overlapping with the soft cover body in plan view. If it is, the engaging element can be concealed by the soft cover to improve the appearance.

  Further, in order to enable the hard cover body and the soft cover body to be easily attached and detached by a simple operation such as sliding, the first engagement element and the second engagement element slide along a predetermined direction. It is preferably configured to be movable.

  At this time, the first engagement element slides with at least a part of the second engagement element, and the slide movement of the second engagement element is prohibited from moving in a direction different from the slide movement direction. As long as the sliding element is provided while guiding, smooth sliding can be realized and the soft cover body can be prevented from falling off.

  If the sliding element is recessed in a direction perpendicular to the predetermined direction and includes a recess for avoiding sliding with the second engagement element, the predetermined portion in the recess is If it corresponds to the resin injection gate provided in the injection mold, even if some burrs generated at the time of molding remain, a part of the second engagement element and the sliding element of the first engagement element do not contact, That is, it does not hinder the slide and can be used suitably.

  In addition, the second engagement element has a substantially U-shaped cross section, and the sliding element slides in the second engagement element, and the first engagement element in the predetermined direction is If the tip of the engagement element is configured so that the cross-sectional area gradually decreases toward the tip, the first engagement element and the second engagement element can be easily inserted.

  By the way, in order to increase the rigidity of the entire soft cover body and effectively prevent the soft cover upper element from wrinkling, the soft cover body supports one end portion on the upper end portion of the second engagement element. A soft cover upper element, and a soft cover lower element whose one end is supported by the lower end of the second engagement element, the soft cover upper element and the soft cover lower element comprising: It is preferable that the other end side of the soft cover upper element and the other end side of the soft cover lower element are made continuous with each other at a position where they are superposed in plan view.

  Further, when the first engagement element and the second engagement element are engaged, the upward surface of the hard cover body and the upward surface of the soft cover body are substantially flush with each other. If it is a thing, it looks good and it can make it difficult to produce the bending of the clearance gap part of a hard cover body and a soft cover body.

  If it is furniture provided with the duct cover comprised as mentioned above and the furniture main body provided with the opening part obstruct | occluded by this duct cover, the usability and appearance as furniture can be improved.

  As described above, according to the duct cover of the present invention, for example, if the hard cover body is formed by injection molding, the smoothness of the upward surface of the hard cover body can be ensured and the appearance can be improved. Further, since both the first engagement element and the second engagement element are made of hard resin, the first engagement element and the second engagement element can be easily engaged with each other, and the hard cover Easy to attach body and soft cover body. Furthermore, even if the soft cover body falls, it can be easily replaced.

  That is, it is possible to provide a high-performance duct cover that can ensure good appearance as furniture and can easily attach and detach the hard cover body and the soft cover body.

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

  As shown in FIG. 1, the duct cover A according to the present invention is applied to a desk D which is a furniture mainly used for office work in an office or the like.

  In the present embodiment, the description will proceed by defining the use end side of the desk D as the front side and the counter use end side as the rear side.

  The desk D includes a top plate portion D1 having a substantially rectangular shape in plan view, a pair of leg portions D2 that support both end portions of the top plate portion D1, and a curtain plate D3 provided on the rear end side of the leg portion D2. And a desk body DD which is a furniture body in which a duct portion D4 for accommodating wiring cords is formed on the opposite side of the top plate portion D1, and an opening D4X1 of the duct portion D4 are concealed. And a duct cover A.

  In the present embodiment, the desk main body DD is further provided with a detachable corner portion D5 for closing both ends of the opening D4X1, but the duct cover A is disposed at the place. Depending on the embodiment, it can be appropriately changed.

  Hereinafter, a specific configuration of each unit will be described.

  The top plate portion D1 includes a top plate body D11 having a smooth work surface on the top surface D110, and a drawer (not shown) that can be pulled out to the use end side at the lower end side of the top plate body D11.

  The leg part D2 supports the rear side of both end parts of the top plate body D11 and has a substantially rectangular leg body D21 in side view, and a leg body provided at the lower end of the leg body D21 and supporting the leg body D21 A support portion D22 and a top plate support portion D23 provided in front of the upper end portion of the leg main body D21 and supporting the front sides of both end portions of the top plate main body D11 are provided.

  The curtain plate D3 is a thin plate having a substantially rectangular shape that is horizontally long when viewed from the front, and is provided between the leg portions D2.

  The corner portion D5 includes a corner top wall D51 having a smooth upward surface D510 and a corner side wall D52 depending from the outer edge of the corner top wall D51, and these portions are integrally formed of a hard synthetic resin. . The upward surface D510 of the corner top wall D51 is substantially the same as the top surface D110 of the top plate body D11, the upward surface of the top wall 111 of the hard cover body 11 described later, the upward surface of the rear duct element D42 described later, and the like. To make one.

  As shown in FIGS. 1, 2, 6, and 7, the duct portion D4 is positioned below the front duct element D41, the rear duct element D42, and the front duct element D41 and the rear duct element D42. And a lower duct element (not shown). And it comprises so that the accommodation space D4X enclosed by these duct elements D41, D42, etc. may be provided, and the opening part D4X1 opened upwards is formed in the upper end part of the accommodation space D4X. Wiring cords can be taken in and out of the accommodation space D4X from the opening D4X1.

  More specifically, the front duct element D41 is provided at the rear end portion of the top plate body D11 and has a cross-sectional shape such as each part in the longitudinal direction which is the width direction thereof. In the present embodiment, the synthetic resin is used. It is formed with. The front duct element D41 prevents the placed duct cover A from falling off in addition to the front first placing element D411 and the front second placing element D412 for supporting the placed duct cover A. A front dropout prevention element D413 is provided. Further, the front first mounting element D411, the front second mounting element D412 and the front dropout prevention element D413 are parallel to each other. Further, the front second mounting element D412 and the front dropout prevention element D413 are provided at positions where they are overlapped in plan view.

  Further, the rear duct element D42 is provided along the upper edge portion of the curtain plate D3, and has the same cross-sectional shape in the longitudinal direction as the front duct element D41. In this embodiment, It is made of synthetic resin. The rear duct element D42 includes a rear first placement element D421 for supporting the placed duct cover A and a rear dropout preventing element for preventing the placed duct cover A from falling off. D422 is provided. Further, the rear first mounting element D421 and the rear dropout prevention element D422 are parallel to each other. Further, the rear first mounting element D421 and the rear dropout preventing element D422 are provided at positions where they are overlapped in plan view.

  The lower duct element includes a support piece (not shown) that supports wiring inserted from the opening D4X1, and a front piece (not shown) in which the front and rear edges of the support piece are erected at a substantially right angle. ) And a rear piece (not shown).

  The duct cover A has a substantially rectangular shape in plan view having a longitudinal dimension in a direction parallel to the counter-use edge of the top plate portion D1, and is detachable from the duct cover main body 1 and the duct cover main body 1. And an auxiliary cover 2 to be attached.

  More specifically, the duct cover main body 1 includes a hard cover body 11 and a first engagement element 12 that can be engaged with the auxiliary cover 2. These parts are made of hard resin (for example, ABS resin). Etc.) is formed integrally by injection molding.

  The hard cover body 11 has a top wall 111 having a smooth upward surface 111a, a rear wall 112 depending from the rear edge of the top wall 111, end walls 113 depending from both side edges of the top wall 111, A plurality of reinforcing ribs 114, which are suspended from the downward surface 111b of the top wall 111 and arranged in a substantially lattice pattern, protrude from the lower portion of the rear wall 112 to the opposite end side and can support the auxiliary cover 2. The auxiliary cover support portion 115 and an elastic attachment portion 116 for attaching the hard cover body 11 to the opening D4X1 by using elastic deformation of the member are configured.

  Furthermore, each part is explained in full detail.

  The top wall 111 is a thin plate having a substantially rectangular shape in plan view.

  The rear wall 112 has a thin plate shape, and a predetermined portion on the upper end side is continuous with a base end portion of the first engagement element 12 described later.

  The end wall 113 is a thin plate having a thickness dimension substantially the same as the thickness dimension of the rear wall 112, and has a through hole 113a penetrating in the thickness direction on the rear end side and a part on the front end side. Is disposed in the through-hole 113a, and a base end portion is provided with an abutting portion 113T supported by the end wall 113. The contact portion 113T includes a protruding portion 113TX that protrudes outward at the tip portion, and in the present embodiment, the shape thereof is hemispherical (see FIG. 8A). In a state where no external force is applied to the corresponding contact portion 113T, the protruding portion 113TX is configured to protrude outward from the end surface 1131 of the end wall 113. Further, when an external force directed inward of the hard cover body 11 is received by the corresponding contact portion 113T, the contact portion 113T is configured to retreat inward by the elastic force of the corresponding contact portion 113T. Further, the front edge 1132 of the end wall 113 is inclined downward so that the depth dimension of the end wall 113 gradually increases as it goes upward. Furthermore, an end wall step portion 1133 having a substantially rectangular shape in a side view is provided at the upper end portion of the front edge 1132 of the end wall 113 so as to face the downward surface 111b of the top wall 111.

  As shown in FIG. 3 and the like, a plurality of reinforcing ribs 114 are arranged in parallel with the rear wall 112 and a plurality of thin plate-like long-side ribs 114 a arranged in front and rear, and substantially in parallel with the end wall 113. The thin plate-like short side ribs 114b are arranged in a substantially lattice pattern, and the auxiliary ribs 114c are provided at the connection portion where the long side ribs 114a and the short side ribs 114b are located on the front side. Yes. The auxiliary rib 114c is provided so as to protrude forward from the long side direction rib 114a located on the front side. Furthermore, the long side direction rib 114a located on the rear side is provided with a central rib 114d at a position corresponding to an elastic mounting portion 116 described later.

  The long side direction rib 114 a has a thickness dimension smaller than that of the rear wall 112. Further, the thickness dimension of the long side direction rib 114a on the use end side is configured to be smaller than the thickness dimension of the long side direction rib 114a on the counter use end side. That is, the thickness dimension is made smaller in the order of the rear wall 112, the long-side direction rib 114a on the counter-use end side, and the long-side direction rib 114a on the use end side. In other words, the thickness dimension of the rear wall 112 and the reinforcing rib 114 arranged from the counter-use end side to the use end side is made smaller in this arrangement order.

  The short side rib 114b has a thickness smaller than that of the end wall 113.

  The auxiliary rib 114c is configured such that the depth dimension of the auxiliary rib 114c gradually increases as it goes upward by inclining the front edge 114c1 downward. The inclination angle of the front edge 114c1 of the auxiliary rib 114c and the inclination angle of the front edge 1132 of the end wall 113 coincide with each other, and when viewed from the side, the inclination surface of the front edge 114c1 of the auxiliary rib 114c The inclined surface of the front edge 1132 of the end wall 113 is configured to be disposed on substantially the same plane (hereinafter, this plane is referred to as a use end-side inclined surface P1). Further, an auxiliary rib step 114c2 having a substantially rectangular shape in side view is formed on the upper end portion of the front edge of the auxiliary rib 114c so as to extend toward the downward surface 111b of the top wall 111. When viewed from the side, the lower edge and the front edge of the auxiliary rib step 114c2 and the lower edge and the front edge of the end wall step 1133 are arranged on substantially the same planes P3 and P4, respectively. It is configured.

  Further, between the end wall 113 and the short-side direction rib 114b, between the short-side direction rib 114b and the short-side direction rib 114b, and between the short-side direction rib 114b and the end wall 113, elastic mounting portions 116 described later are respectively provided. Yes.

  The auxiliary cover support portions 115 are provided on both sides and the center of the hard cover body 11. Hereinafter, for convenience of explanation, the auxiliary cover support portion 115 located on the side portion will be described as an example. The auxiliary cover support portion 115 includes a pair of support portion standing pieces 115a and predetermined upper end portions of the support portion standing pieces 115a. The support part top piece 115b which connects a part and the rib 115c for support parts provided in the lower surface side of this support part top piece 115b are provided.

  The support portion standing piece 115a protrudes from the rear wall 112 to the opposite end side. Further, a support step 115a1 for preventing interference with the second engagement element 22 described later is provided at a predetermined position, and the height dimension me1 is gradually increased from the support step 115a1 to the tip. ing.

  The outwardly facing surfaces 115ax of the support portion standing pieces 115a at both ends of the hard cover body 11 are configured to be substantially flush with the end surface 1131 of the end wall 113.

  The support portion top piece 115b connects the support portion stepped portion 115a1 to the tip portion of the pair of support portion standing pieces 115a, and the tip edge of the support portion top piece 115b is the tip portion of the support portion standup piece 115a. It is comprised so that it may be located in the position which protrudes more. Further, the auxiliary cover 2 can be supported by the upward surface 115b1 of the support portion top piece 115b. Further, the downward surface 115b2 of the support portion top piece 115b is configured to be supported by the rear first mounting element D421 in the closed state.

  The support portion rib 115c is provided from the lower surface side substantially central portion of the support portion top piece 115b to the long side rib 114a. And it arrange | positions the predetermined distance and the connection piece 116c of the elastic attachment part 116 mentioned later.

  As shown in FIGS. 3 to 7, the elastic attachment portions 116 are provided in a total of six locations along the longitudinal direction and the longitudinal direction on the lower surface side of the duct cover body 1. Specifically, the auxiliary cover support portions provided at three positions of the front edge portion on the lower surface side of the hard cover body 11 (top wall 111), that is, both side portions and the central portion, and are positioned symmetrically in the front-rear direction. 115 (support portion top piece 115b) is provided at three locations on the lower surface side (see FIG. 3).

  Hereinafter, for the sake of convenience of description, the elastic mounting portion 116 provided on the side portion of the hard cover body 11 (top wall 111) will be described as an example.

  The elastic mounting portion 116 includes a pair of elastic pieces 116a, a pair of claw portions 116b provided at the tip of the elastic piece 116a, and a connecting piece 116c that variably connects the distance between the claw portions 116b. Prepare.

  The elastic piece 116a has a thin plate shape extending in the extending direction J2 orthogonal to the mounting direction J1 of the duct cover A (see FIGS. 4 and 5). One elastic piece 116a is supported at its proximal end by the short-side direction rib 114b as a standing wall and the downward surface 111b of the top wall 111, and at its distal end, the top wall 111 faces downward. A gap SK is formed between the surface 111b and the surface 111b. The other elastic piece 116a is supported at its base end by the end wall 113 and the downward surface 111b of the top wall 111 as standing walls, and at the distal end thereof by the downward surface 111b of the top wall 111. And a gap SK is formed between them.

  In other words, the pair of elastic pieces 116a have both compatible walls (end wall 113 and short side direction rib 114b) facing each other with their surfaces facing each other, and their tips are extended in directions close to each other.

  The coexistence wall is constituted by a pair of opposed short-side direction ribs 114b and 114b in the central portion of the hard cover body 11, and a pair of opposed support portion standing pieces in the auxiliary cover support portion 115. 115a and 115a, respectively.

  Thus, a later-described claw portion 116b provided at the tip of the elastic piece 116a can advance and retreat in the thickness direction of the elastic piece 116a.

  The claw portion 116b has a substantially triangular shape in a side view, and includes a downward inclined surface 116b1 as a first inclined surface and an upward inclined surface 116b2 as a second inclined surface. And the angle which these downward inclined surface 116b1 and upward inclined surface 116b2 comprise is comprised at substantially right angle. Further, when viewed from the side, the tip end portion of the claw portion 116b is positioned at a position protruding outward from the use end side inclined surface P1 or the counter-use end side inclined surface P2 (see FIG. 5).

  The connecting piece 116c is substantially U-shaped in a plan view, and both ends are connected to the pair of claws 116b, and the distance between the claws 116b is variably connected.

  The arcuate portion of the connecting piece 116c protrudes in the opposite direction to the claw portion 116c, and is in a positional relationship facing the tip of the central rib 114d or the support portion rib 115c. This is so that when an external force is applied to the claw portion 116b, the limit of elastic deformation of the elastic piece 116a is not exceeded, and when the elastic piece 116a is excessively bent, the arc-shaped portion is The abutment of the central rib 114d or the support rib 115c makes it possible to prevent the damage.

  That is, the elastic mounting portion 116 also includes elastic restricting means, and in the present embodiment, the connecting piece 116c and the central rib 114d or the supporting member serving as a restricting protrusion provided at a position facing the connecting piece 116c. The function is assigned to the ribs 115c for members.

  The first engagement element 12 has a plurality of sliding elements 121a and 121b (hereinafter collectively referred to as sliding elements 121) arranged in a substantially straight line so as to be spaced apart from each other by a predetermined distance and in parallel with the longitudinal direction of the rear wall 112. .). The sliding element 121 has a substantially horizontal T shape when viewed in cross section, and includes a proximal-side sliding element 121x erected substantially perpendicularly from the rear wall 112 of the hard cover body 11, And a distal end side sliding element 121y provided orthogonal to the distal end portion of the proximal end side sliding element 121x. Further, by engaging the base-side sliding element 121x and the distal-side sliding element 121y in a second engaging element 22 described later, the second engaging element 22 becomes the first engaging element. It is configured to be slidable along the longitudinal direction of the element 12.

  Furthermore, both the tip portions of each sliding element 121 are configured so that the cross-sectional area gradually decreases toward the tip.

  In addition, the sliding element 121b includes a recess 121b1 that is recessed in a direction orthogonal to the sliding direction. In this embodiment, a predetermined portion of the rearward surface of the sliding element 121b is recessed in the thickness direction to form a recess 121b1. A resin injection gate (a so-called gate) provided in the injection mold is associated with a predetermined position of the recess 121b1.

  The auxiliary cover 2 includes a soft cover body 21 formed of a soft resin and a second engagement element 22 formed of a hard resin.

  And these soft cover bodies 21 and the 2nd engagement element 22 are formed by extrusion molding so that it may have cross-sectional shapes, such as each part, in a longitudinal direction.

  Each part will be described more specifically.

  The soft cover body 21 includes a soft cover upper element 211 and a soft cover lower element 212. Then, the base end side is fixedly supported by the second engagement element 22 and the respective distal end portions are made continuous so that the soft cover upper element 211, the soft cover lower element 212, the second engagement element. A hollow space 21x surrounded by 22 is formed.

  The soft cover upper element 211 has a substantially rectangular shape in plan view, and a base end portion thereof so that a base end portion side thereof and an upper piece 221 of a second engagement element 22 described later are superposed in plan view. The side is fixed from the upper piece 221 of the second engagement element 22 to the upper end portion of the upright piece 223. The upward surface 2110 is provided with a plurality of grooves 211a extending along the longitudinal direction.

  The soft cover lower element 212 has a substantially rectangular shape in plan view, and is fixed to the lower end side of an upright piece 223 of the second engagement element 22 described later. When the soft cover upper element 211 is viewed in plan, the soft cover upper element 211 and the soft cover lower element 212 are superposed, and the soft cover lower element 212 is visually recognized from above by the soft cover upper element 211. It is configured to be hidden by the impossible.

  On the other hand, the second engagement element 22 has a substantially U-shaped cross section, and includes a pair of an upper piece 221 and a lower piece 222, and an upright piece 223 that connects the upper piece 221 and the lower piece 222. Prepare.

  It should be noted that protruding pieces 22z are provided at the distal end portion of the upper piece 221 and the distal end portion of the lower piece 222, respectively, so that the dimension between the distal ends is smaller than the dimension between the proximal ends. Thus, the tip side sliding element 121y of the first engagement element 12 positioned in the second engagement element 22 is effectively prevented from coming into contact with the protruding piece 22z and being disengaged. ing.

  About the duct cover A comprised as mentioned above, the usage method is demonstrated below.

  (1) A method of attaching the duct cover main body 1 and the auxiliary cover 2.

  First, when the duct cover main body 1 and the auxiliary cover 2 are in a separated state, the first engagement element 12 of the duct cover main body 1 and the second engagement element 22 of the auxiliary cover 2 are positioned at close positions.

  When the operation of inserting the first engagement element 12 into the second engagement element 22 is performed, the tip of the sliding element 121 constituting the first engagement element 12 is tapered. One engagement element 12 can be easily inserted into the second engagement element 22.

  When a force is further applied in the direction in which the first engagement element 12 is inserted into the second engagement element 22, the first engagement element 12 is guided by the second engagement element 22 to start sliding. Since the distal end side sliding element 121y of the first engaging element 12 positioned in the second engaging element 22 is in contact with the protruding piece 22z and is prevented from being disengaged, The first engagement element 12 and the second engagement element 22 do not fall off, which is convenient.

  In the present embodiment, the first engagement element 12 is constituted by a plurality of sliding elements 121. However, both ends of each sliding element 121 are tapered, and the sliding elements 121 are straightened. Since they are arranged side by side on the line, there is no problem that the sliding element 121 and the second engagement element 22 abut on the way. In addition, the duct cover body 11 is formed by injection molding of a hard resin, but since the recess 121b1 is provided at a position corresponding to a so-called pouring gate into which the hard resin is charged at the time of molding, some burrs and the like due to molding remain. Even if it is, it does not contact | abut on the 2nd engagement element 22, and does not prevent sliding. That is, both ends of the duct cover body 1 and the auxiliary cover 2 can be positioned at a predetermined position where both ends of the duct cover body 1 and both ends of the auxiliary cover 2 are aligned by smooth sliding movement.

  In the above operation, if the second engagement element 22 of the auxiliary cover 2 is gripped so as to be sandwiched from above and below, the second engagement element 22 is formed of a hard resin, so that it does not bend by gripping. Since it can be gripped firmly, the feeling of operation and grip is good. Even if only the soft cover body 21 portion of the auxiliary cover 2 is gripped, the operational feeling and the grip feeling are improved as compared with the case where the entire auxiliary cover 2 is made of a soft resin.

  When the duct cover main body 1 and the auxiliary cover 2 are removed, if an external force is applied in a direction in which they are slid, the duct cover main body 1 and the auxiliary cover 2 can be easily slid to a disengageable position to be disengaged. Thus, since the duct cover main body 1 and the auxiliary cover 2 can be easily removed, for example, even when the soft cover body 21 needs to be replaced, this can be handled flexibly.

  (2) A method of attaching the duct cover A to the opening D4X1.

  As an example, first, the duct cover A is brought into a state where both ends of the duct cover main body 1 and both ends of the auxiliary cover 2 are aligned as described in (1). Then, as shown in FIG. 7 (S1), the downward inclined surface 116b1 of the counter-use end claw portion 116b is brought into contact with the distal end portion of the rear first mounting element D421 of the rear duct element D42.

  Next, the duct cover A is rotated in the direction of closing the opening D4X1 with the contact portion as the rotation center. When the duct cover A is rotated in this way, the claw portion 116b on the use end side is positioned at a position in contact with the front end portion of the front second mounting element D412 of the front duct element D41, and the duct cover A The upward surface 111a is in a horizontal state (see FIG. 7 (S2)).

  Further, when an external force is applied in the direction DR1 shown in FIG. 7, the downward inclined surface 116b1 of the claw portion 116b is formed at the tip of the rear first mounting element D421 and the tip of the front second mounting element D412, respectively. The connecting piece 116c is elastically deformed by being pressed.

  When an external force is further applied to the duct cover A in the direction DR1, the duct cover A is positioned at a position where the opening D4X1 is closed as shown in FIG. 7 (S3).

  In this closed state, on the use end side, the downward surface 111b of the top wall 111 and the front first mounting element D411 (or the downward surface of the end wall step 1133 and the front second mounting element D412) are contacted. On the other hand, the upward inclined surface 116b2 of the claw portion 116b and the front end portion of the front drop-off preventing element D413 come into contact with each other. In addition, the lower surface 115b2 of the support portion top piece 115b and the first rear mounting portion are disposed on the opposite end side. While the element D421 abuts, the upward inclined surface 116b2 of the claw part 116b abuts the tip of the rear drop-off preventing element D422, and the duct cover A is indirectly connected by elastic deformation of the connecting piece 116c that supports the claw part 116b. Therefore, the duct cover A that closes the opening D4X1 does not rattle unnecessarily in the vertical direction.

  The downward inclined surface 116b1 of the claw portion 116b on the counter-use end side is brought into contact with the front end portion of the rear first mounting element D421 of the rear duct element D42, and the use end side is rotated. The duct cover A is attached, but the downward inclined surface 116b1 of the claw portion 116b on the use end side is brought into contact with the front end portion of the front first mounting element D411 of the front duct element D41, so You may make it attach by rotating a use end side.

  Accordingly, the upward surface 111a of the hard cover body 11 and the upward surface 2110 of the soft cover body 21 are substantially flush with each other.

  (3) A method of attaching a plurality of duct covers A to the opening D4X1.

  By the way, when the plurality of duct covers A are attached to the opening D4X1, the protruding portion 113TX of the abutting portion 113T protruding from one end surface 1131 of the duct cover A positioned on the end side of the opening D4X1 becomes the corner portion D5. The projecting portion 113TX of the abutting portion 113T that abuts against the inner wall (not shown) and projects from the other end surface 1131 is in contact with the projecting portion 113TX of the abutting portion 113T that projects from the end surface 1131 of the adjacent duct cover A. (See FIG. 3).

  Further, the protruding portions 113TX of the contact portions 113T protruding from both end surfaces 1131 of the duct cover A positioned on the center portion side of the opening D4X1 are respectively the contact portions 113T protruding from the end surfaces 1131 of the adjacent duct covers A. It abuts on the protrusion 113TX (see FIG. 3).

  That is, the protrusion 113TX of the contact portion 113T provided in the duct cover A attached to the opening D4X1 contacts the protrusion 113TX of the contact portion 113T of the other duct cover A or the inner wall of the corner portion D5, respectively. The abutting portion 113T always receives an external force directed inward of each duct cover A.

  Therefore, the contact portion 113T that has received the external force is elastically deformed while being in contact with another contact portion 113T and the like, and retracts inward of the duct cover A.

  In this way, the gap SS1 between the end faces 1131 of the duct cover A is formed substantially uniformly, and the end faces 1131 and the corner portions of the end walls 113 constituting the duct covers A attached to both ends of the opening D4X1. Since the gap SS2 with the inner wall of D5 is also substantially uniform, the appearance as furniture can be improved (see FIG. 1).

  (4) A method of removing the duct cover A attached to the opening D4X1.

  First, the opposite end of the auxiliary cover 2 is turned upward so that a finger or the like can be inserted into the space formed when the auxiliary cover 2 is turned.

  Then, a finger or the like is put into the space where the auxiliary cover 2 is turned, the finger is put on the lower surface side of the auxiliary cover 2 and the like is lifted.

  Then, the counter-use end side starts to be lifted with the use end side as the center of rotation.

  Furthermore, if it rotates, engagement with the nail | claw part 116b and the rear side drop-off prevention element D422 will be cancelled | released, and the restrictions by the side of the non-use end of the duct cover A will be cancelled | released.

  At this time, the upward inclined surface 116b2 of the claw portion 116b that is in contact with the rear dropout prevention element D422 effectively guides the disengagement, so that the disengagement can be easily performed.

  Thus, the duct cover A can be removed from the opening D4X1.

  Thus, since the duct cover A according to the present embodiment forms the hard cover body 11 by injection molding, the smoothness of the upward surface 111a of the hard cover body 11 can be secured and the appearance can be improved. Further, since both the first engagement element 12 and the second engagement element 22 are made of hard resin, the first engagement element 12 and the second engagement element 22 can be easily engaged. The hard cover body 11 and the soft cover body 21 can be easily attached. Furthermore, even if the soft resin portion is damaged, it can be easily replaced.

  That is, even when the duct cover A is applied to the desk D, it is possible to ensure good appearance as furniture and to attach and remove the hard cover body 11 and the soft cover body 21 with high added value. A duct cover A can be realized.

  Further, since the soft cover body 21 and the second engagement element 22 are integrally formed by extrusion molding, the soft cover body 21 and the second engagement element 22 can be manufactured easily and inexpensively.

  Since the second engagement element 22 is provided at a position where it can be concealed with the soft cover body 21 in plan view, the second engagement element 22 is concealed by the soft cover body 21 to improve the appearance. can do.

  Further, since the first engagement element 12 and the second engagement element 22 are configured to be slidable along a predetermined direction, the hard cover body and the soft cover body can be easily moved by a simple operation such as sliding. It can be attached and detached.

  In addition, the first engagement element 12 slides with at least a part of the second engagement element 22, and the slide movement of the second engagement element 22 is prohibited from moving in a direction different from the slide movement direction. Since the sliding element 121 to be guided is provided, a smoother slide can be realized and the soft cover body 21 can be prevented from falling off.

  And since this sliding element 121 is provided with a recess 121b1 that is recessed in a direction orthogonal to the predetermined direction and avoids sliding with the second engagement element 22, the predetermined portion in the recess 121b1 is If it is made to correspond to the resin injection gate provided in the injection mold, even if some burrs generated at the time of molding remain, a part of the second engagement element 22 and this sliding element 121 do not come into contact with each other. It is not hindered and can be used preferably.

  The second engagement element 22 has a substantially U-shaped cross section, and the sliding element 121 slides in the second engagement element 22, and the first engagement element 22 in the predetermined direction is the first in the predetermined direction. Since the front end portion of the engagement element 12 is configured so that the cross-sectional area gradually decreases toward the front end, the first engagement element 12 and the second engagement element 22 can be easily inserted.

  Furthermore, the soft cover body 21 is supported by the soft cover upper element 211 whose one end is supported by the upper end of the second engagement element 22 and by the lower end of the second engagement element 22. The soft cover lower element 212 is provided. The soft cover upper element 211 and the soft cover lower element 212 are arranged at a position where they are superposed in plan view, and the other end side of the soft cover upper element 211 and the soft cover lower element 212 are soft. Since the other end side of the lower cover element 212 is continuous, it is possible to increase the rigidity of the entire soft cover body 21 and effectively prevent the soft cover upper element 211 from wrinkling.

  When the first engagement element 12 and the second engagement element 22 are engaged, the upward surface 111a of the hard cover body 11 and the upward surface 2110 of the soft cover body 21 are substantially flush with each other. Since it comprises, it looks good and can make it difficult to produce the bending of the clearance gap part of the hard cover body 21 and the soft cover body 22. FIG.

  The present invention is not limited to the embodiment described in detail above.

  For example, the first engagement element 12 is formed integrally with the hard cover body 11 and the second engagement element 22 is formed integrally with the soft cover body 21, but the first engagement element is formed with the soft cover body. The second engagement element may be formed integrally with the hard cover body while being formed integrally.

  Moreover, although it has comprised so that the 1st engagement element 12 and the 2nd engagement element 22 may be engaged so that a slide movement is possible, the embodiment of engaging so that a slide movement is impossible is also considered.

  In addition, the claw portions 116b are provided on the edge portion on the use end side and the edge portion on the counter-use end side of the duct cover A, respectively, but may be configured to be provided only on one of the edge portions. .

  Moreover, although the duct cover A in this embodiment shall be provided in the counter-use end side of the top-plate part D1, depending on embodiment, it is provided in the center of the top-plate part D1, or it equips with the leg part D2. The arrangement location can be set as appropriate.

  The configuration of the desk D is not limited to this embodiment. Furthermore, the furniture to which the duct cover A is applied is not limited to the desk D, and can be applied to furniture generally provided with an opening that can accommodate wiring cords.

  Furthermore, although the upward surface 111a of the hard cover body 11 faces upward in the attachment to furniture, the attachment method is not limited to this, for example, it faces the horizontal direction.

  In the present embodiment, the base end portion side of the soft cover upper element 211 is provided from the upper piece 221 of the second engagement element 22 to the upper end portion of the upright piece 223. In particular, the distal end of the upper piece 221 is provided. It is more preferable that the protrusion piece 22z protruding downward from the portion is provided from the outer surface to the upper end portion of the upright piece 223 via the upper piece 221. This is because the joints of the hard part and the soft part of the entire duct cover are more clearly divided, and a uniform appearance on the appearance of the entire duct cover can be obtained.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

The whole perspective view showing the desk to which the duct cover in one embodiment of the present invention is applied. The perspective view which shows the attachment principal part in the embodiment. The bottom view which shows the duct cover main body in the embodiment. The side view which shows the duct cover main body in the embodiment. The side end view which shows the duct cover main body 1 in the embodiment. Sectional drawing of the structure of the attachment main part in the embodiment. The figure which shows the attachment method of the duct cover in the embodiment. The perspective view which expands and specifically shows the specific aspect of the contact part in the embodiment.

Explanation of symbols

A ... Duct cover D ... Furniture (desk)
DD ... Furniture body (desk body)
D4X1... Opening 11... Hard cover body 12... First engagement element 21... Soft cover body 22. Element 111a... Upward surface 121... Sliding element 121b1... Recessed 211... Soft cover upper element 212 ... Soft cover lower element 2110.

Claims (9)

For closing the opening of the furniture body,
A hard cover body having an upward surface exposed to the surface when the opening is closed and formed of a hard resin;
A soft cover having an upward surface exposed to the surface when the opening is closed and formed of a soft resin;
A first engagement element and a second engagement element that are formed of a hard resin and are detachably engaged with each other;
One of the first engagement element and the second engagement element is formed integrally with the hard cover body, and the other is formed integrally with the soft cover body,
By engaging the first engagement element and the second engagement element, the hard cover body and the soft cover body are integrated to close the opening, and each upward surface is a surface. It is configured to be exposed to
Of the first engagement element and the second engagement element, an engagement element formed integrally with the soft cover body is provided at a position where it can be concealed by overlapping with the soft cover body in plan view. Duct cover characterized by. The soft cover body and an engagement element formed integrally with the soft cover body among the first engagement element and the second engagement element are integrally formed by extrusion molding. The duct cover according to claim 1. The duct cover according to claim 1 or 2, wherein the first engagement element and the second engagement element are configured to be slidable along a predetermined direction. The first engagement element slides with at least a part of the second engagement element and guides the slide movement of the second engagement element while prohibiting movement in a direction different from the slide movement direction. The duct cover according to claim 3, further comprising a sliding element. The duct cover according to claim 4 , wherein the sliding element includes a recess that is recessed in a direction orthogonal to the predetermined direction and prevents sliding with the second engagement element. The second engagement element has a substantially U-shaped cross section, and the sliding element slides in the second engagement element;
The duct cover according to any one of claims 3 to 5, wherein a tip end portion of the first engagement element in the predetermined direction is configured so that a cross-sectional area gradually decreases toward the tip end. The soft cover body includes a soft cover upper element whose one end is supported by the upper end of the second engagement element, and a soft cover lower element whose one end is supported by the lower end of the second engagement element. Comprising:
The soft cover upper element and the soft cover lower element are arranged at a position where they are superposed in plan view,
The duct cover according to claim 6, wherein the other end portion side of the soft cover upper element and the other end portion side of the soft cover lower element are made continuous. When the first engagement element and the second engagement element are engaged,
The duct cover according to any one of claims 1 to 7 , wherein an upward surface of the hard cover body and an upward surface of the soft cover body are substantially flush with each other. A furniture comprising the duct cover according to any one of claims 1 to 8, and a furniture body having an opening closed by the duct cover.

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