JPH05285014A - Desk - Google Patents

Abstract

PURPOSE:To maintain minimum necessary opening area for wiring at all times by providing a cut-out hole in the side end portion of a duct cover for a wiring duct, a lid capable of opening and closing longitudinally of the cutout hole and an articulated mechanism for giving multiple stage articulated operation to the lid in opening and closing between the lid and duct cover. CONSTITUTION:A lid 61 opens and closes a cutout hole 62 in a duct cover 6. When the lid 61 is pushed longitudinally of the duct cover 6, an engaging projection 61a on the tip of a tongue 61b of the lid 61 engages an engaging projection 64 of the duct cover 6. When the lid 61 is further pushed, the tongue 61b forming an articulated mechanism 67 is elastically deformed parpendicularly to the inner surface of the duct cover 6 to operate articulately engaging projection 61c. Thus, the opening part of the cutout hole 62 ensures a space necessary for passing a telephone wire therethrough and the most of the opening part is closed by the lid 61. Then, the tongue 61b engages a recess 64a on the engaging projection 64 to be restricted from movement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk preferably used in offices and the like.

[0002]

2. Description of the Related Art As a desk of this type, for example, a wiring duct space opened upward and to the left and right sides is formed at a position below a top plate near a rear end, and the upper surface of the wiring duct space is It is closed with a plate-shaped duct cover so that it can be opened and closed, and a cutout hole is provided at the end of the desk on the side of the duct cover, which is normally closed with a slidable lid.
It is known that the power line of an office automation device or the like can be pulled out from the notch when the power line is pulled out to the top plate. Usually, in this kind of desk, such a cutout hole has a rectangular shape that is long in the left-right direction of the top plate so that a plurality of wirings can be drawn out on the top plate, and the slide position of the lid is adjusted to adjust the position. It is configured so that the opening area can be adjusted to match the number of wirings.

[0003]

By the way, in the case of such a structure, when one relatively thin wiring such as a telephone line is drawn out, the opening area of the notch hole must be made small. Small office supplies such as clips will drop down the desk from the opening. In such a case, when the wiring is completed, the lid is closed according to the wiring, but when the user pulls the telephone, for example, at the time of use, the telephone line pushes the lid and the lid is wired. It will be more open than time. In other words, in the case of a lid that can slide, when you use the desk and hook the wiring that is pulled out from the notch hole, the lid opens accordingly, the notch hole opens more than necessary and small office supplies can be dropped. At the same time, the appearance was deteriorated.

An object of the present invention is to eliminate such a problem.

[0005]

The present invention takes the following means in order to achieve such an object. That is, the desk according to the present invention is a desk in which the wiring duct space is openably and closably closed by a duct cover, and a cutout hole is provided in at least one side end portion in the longitudinal direction of the duct cover, and the cutout hole is provided with the cutout hole. It is characterized in that a lid that can be opened and closed in the longitudinal direction is provided, and between the lid and the duct cover, a moderation mechanism is provided for allowing the lid to perform a plurality of steps of moderation operation during opening and closing.

In the desk according to the present invention, the duct cover, the lid and the moderating mechanism are made of synthetic resin, and the moderating mechanism is formed on the lid and the engaging convex portion formed on the duct cover. It is possible to cite one having a plurality of stages of engaging recesses that engage with the fitting protrusions. In the case of such a lid and moderation mechanism made of synthetic resin, the engaging convex portion is integrally formed with the tongue piece at the tip of the elastically deformable tongue piece extending from the center of the base end portion of the lid,
It is preferable that the engaging concave portion is provided at a position corresponding to the engaging convex portion in the vicinity of the cutout hole on the inner surface of the duct cover.

[0007]

With this structure, when the lid is opened, the lid is actuated by the detent mechanism to be locked at the desired opening position of the notch hole. Therefore, even if wirings drawn out from the cutout holes come into contact with the lid and an external force is applied, they do not easily move from the open position,
The minimum required opening area can be maintained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, a desk 1 includes a side panel 2 and a sleeve 3 which are legs, a top plate 4 supported by the side panel 2 and the sleeve 3, and a rear end side of the side panel 2 and the sleeve 3. The outer panel 5 which is erected on the main part is formed. On the rear end side of the top plate 4, a gutter 9 which forms a wiring duct space DS for holding wiring provided in the outer panel 5
The duct cover 6 that can be opened and closed above the roof is the top plate 4.
It is attached almost flush with. The left and right side surfaces of the wiring duct space DS are side covers 10 having an angle shape in side view.
Is blocked by. Further, a decorative member 7 is attached to the rear end side of the duct cover 6 so as to be flush with the upper surface of the duct cover 6. Both ends of the decorative member 7 are
Corner cover 8 fixed to side panel 2 and sleeve 3
It is supported by. A square hole for mounting an option such as a desktop panel is provided on the upper surface of the corner cover 8, and a post cap 8a made of a substantially rectangular flat plate is provided near the upper end of the square hole. The groove is engaged and closed.

The duct cover 6 is made of synthetic resin and is shown in FIGS.
As shown in FIG. 3, a notch hole 62 is formed that is flat and always closed by a lid 61 slidably attached to one side end. The notch hole 62 has a rectangular shape, and the size thereof is not particularly limited, but for example, the dimension of the long side of the rectangle is about 50 m.
When it is set to about m, when using a plurality of OA devices, there is no practical problem in drawing out a plurality of power supply lines, connection cables and the like. In the vicinity of both side edges of the cutout hole 62,
A rail portion 63 that guides the lid 61 in the longitudinal direction of the duct cover 6 is provided on the inner surface of the duct cover 6 that faces the wiring duct space DS. This rail part 63
Is a narrow narrow portion 63 having a width substantially the same as that of the cutout hole 62.
a and a wide portion 63b wider than the narrow portion 63a
Consists of. Therefore, a stepped portion 63c is formed in a portion corresponding to the vicinity of the rear portion of the cutout hole 62, and the stepped portion 63c prevents the lid 61 from falling off. The width dimension of the wide width portion 63b is such that the guide portion 61d of the lid 61 described later can be easily slid without elastic deformation, and the narrow width portion 63a is such that the guide portion 61d is slightly elastically deformed and slid. And it is sufficient. Further, from the inner surface of the duct cover 6 and near the end edge portion 62a of the cutout hole 62,
An engaging recess 64 formed by connecting a plurality of triangular recesses 64a is formed in the central portion of the duct cover 6 in the longitudinal direction between the rails 63. Further, at positions near both side edges of the inner surface of the duct cover 6, a mounting claw body 65 having a convex portion on the outer surface of the tip for mounting the duct cover 6 on the desk 1 is erected in a slightly inclined state toward the outside. In addition, a reinforcing partition wall 66 is formed so as to cross the duct cover 6.

Like the duct cover 6, the lid 61 is made of synthetic resin, and its main body portion 61h has a rectangular shape corresponding to the shape of the cutout hole 62, as shown in FIGS. The body portion 61h has a tongue piece 61b extending rearward from a central portion of the base end portion 61a and elastically deformable in the vertical direction. On the upper surface side of the tip of the tongue piece 61b, an engaging projection 61c having a substantially triangular cross section is integrally formed with the tongue piece 61b. On the left and right of the tongue piece 61b, annular guide portions 61d that are elastically deformable in the width direction of the lid 61 are provided so as to project from the base end portion 61a. The side surface convex portion 61e near the base end portion 61a of the guide portion 61d has a main body portion 61 of the lid 61.
The lid 6 which protrudes slightly outward from the side surface of h and will be described later.
It functions as a falling prevention claw of 1. Further, on the inner surface side of the terminal end portion 61f of the side surface convex portion 61e, a protrusion 61g for pressing the lid 61 when detaching it from the cutout hole 62 and elastically deforming the guide portion 61d is provided. In the above structure, the tongue piece 61b integrally formed with the lid 61, the engagement recess 61c, and the engagement recess 64 formed on the inner surface of the duct cover 6 constitute the moderation mechanism 67.

In such a structure, the duct cover 6
And the lid 61 are molded separately, and the lid 61 covers the duct cover 6
It is attached so as to open and close the notch hole 62. As shown in FIG. 8, the lid 61 is mounted by connecting the left and right guide portions 61d on the base end portion 61a side of the lid 61 to the rail portion 6 near the cutout hole 62.
3 and pushes the lid 61 in the longitudinal direction of the duct cover 6 (indicated by arrow X in the figure). Then, the engaging protrusion 61 c at the tip of the tongue piece 61 b of the lid 61 is engaged with the engaging recess 64 of the duct cover 6.
Engage with. Further, when the lid 61 is pushed in, the moderation mechanism 6
The tongue piece 61b forming 7 is elastically deformed in the direction perpendicular to the inner surface of the duct cover 6, and the engaging convex portion 61c is actuated to allow the lid 61 to be moved in the longitudinal direction of the duct cover 6. (Fig. 9). Here, when the lid 61 is pulled to the side end of the duct cover 6, the notch hole 62 is formed by the lid 61.
Is closed. In this state, even if the lid 61 is pulled further toward the side end of the duct cover 6,
1 does not move. This is because the side surface convex portion 61e of the guide portion 61d of the lid 61 is the step portion 6 of the rail portion 63 of the duct cover 6.
The lid 61 is prevented from coming off from the duct cover 6 because it abuts on the duct 3a. The duct cover 6 with the lid 61 thus attached is attached to the desk D so as to close the upper surface of the wiring duct space DS.

When the desk D is used, for example, the telephone line T
When one C is pulled out from the notch hole 62, as shown in FIG. 10, the opening portion of the notch hole 62 has a space enough for one telephone line to pass through, and most of the notch hole 62 are It is closed by a lid 61. In this case, the lid 61 is moved by the detent mechanism 67 by detent action, and then the tongue piece 61b is moved.
Of the engaging convex portion 61 c of the engaging concave portion 64 of the duct cover 6
The two recesses 64a are engaged with each other and the movement thereof is suppressed. Therefore, even if the telephone line TC is pulled while being in contact with the lid 61, the lid 61 does not move in the longitudinal center direction of the duct cover 6, and the opening area of the cutout hole 62 does not inadvertently increase.

In this embodiment, the cutout hole 62 is provided.
The lid 61 is structured such that the lid 61 can be easily removed so as to make maximum use of the lid. That is, the guide portion 61 of the lid 61
d has an annular shape and has a structure capable of being elastically deformed in the inner width direction of the lid 61, and a protrusion 61g is provided upright at the end portion thereof. When removing the lid 61, the lid 61 is kept closed, and force is applied from the outside so that the left and right protrusions 61g of the guide portion 61d come close to each other. By bringing the left and right protrusions 61g close to each other in this manner, the respective guide portions 61d
The side surface recessed portion 61e is disengaged from the stepped portion 63c of the rail portion 63. Then, when the lid 61 is pulled outward in the longitudinal direction of the duct cover 6 from that state, each projection 6
1g exceeds the stepped portion 63c and the narrow portion 63a of the rail portion 63
Will be in contact with. In this state, the respective protrusions 61g are guided in the narrow width portion 63a, and the guide portion 61d slides in the state of being deformed in the inner width direction and comes out of the rail portion 63. Thus, removing the lid 61 from the duct cover 6 does not require tools, jigs or the like, and does not require complicated work, and the protrusion 61g of the guide portion 61d is slid inward with a finger. It can be removed easily with just a simple operation.

The present invention is not limited to the embodiments described above, and the configuration of each part is not limited to the illustrated examples, and various modifications can be made without departing from the spirit of the present invention. Is.

[0016]

As described above in detail, according to the present invention, when the lid is opened and closed, the lid operates by the moderation mechanism, so that the notch hole can be easily formed to have a desired opening area. Moreover, since the lid is locked at the desired opening position by the moderation mechanism, even if the wires drawn from the notch hole come into contact with the lid and external force is applied, the lid moves unnecessarily from the open position. Therefore, the minimum required opening area can always be maintained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a bottom view of the duct cover according to the embodiment.

FIG. 3 is a side view of the duct cover according to the embodiment.

4 is a cross-sectional view taken along the line AA in FIG.

FIG. 5 is a bottom view of the lid of the same embodiment.

FIG. 6 is a top view of the lid of the same embodiment.

FIG. 7 is a side view of the lid of the embodiment.

FIG. 8 is a perspective view of an essential part of the embodiment.

FIG. 9 is a perspective view of a main part of the embodiment.

FIG. 10 is a perspective view showing an enlarged main part of the embodiment.

[Explanation of symbols]

 6 ... Duct cover 61 ... Lid 61a ... Base end part 61b ... Tongue piece 61c ... Engagement convex part 62 ... Notch hole 64 ... Engagement concave part 67 ... Moderation mechanism D ... Desk DS ... Wiring duct space

Claims (3)

[Claims] 1. A desk in which a wiring duct space is closed by a duct cover so as to be openable and closable, a cutout hole is provided in at least one side end portion in the longitudinal direction of the duct cover,
The cutout hole is provided with a lid that can be opened and closed in the longitudinal direction, and a moderation mechanism is provided between the lid and the duct cover to allow the lid to open and close in multiple steps. desk. 2. A duct cover, a lid, and a moderation mechanism are made of synthetic resin, and the moderation mechanism engages with an engagement protrusion formed on the lid and the engagement protrusion formed on the duct cover. The desk according to claim 1, comprising a plurality of engaging recesses. 3. An engaging convex portion is integrally formed with the tongue piece at the tip of an elastically deformable tongue piece extending from the center of the base end portion of the lid,
3. The desk according to claim 2, wherein the engaging concave portion is provided at a position corresponding to the engaging convex portion near the cutout hole on the inner surface of the duct cover.