JP7322473B2 - Cord holder for lifting table - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cord holder used in a lifting table.

2. Description of the Related Art Recently, in offices and the like, along with the diversification of working styles, various types of elevating tables that can arbitrarily change the height position of the top plate are being introduced.

In this type of elevating table, since the top plate moves up and down with respect to the table body placed on the floor, the power cords and communication cords connecting the table body or the floor and the top plate may be disturbed or disconnected. It must be protected from tampering.

In order to play such a role, the conventional elevating table is often provided with a cord holder between the table body and the top plate, but the conventional cord holder has the following problems. As one of the cord holders, there is known one in which a large number of cord holding pieces are pivotally connected in a bellows shape (see, for example, Patent Document 1). Therefore, it is difficult to apply to anything other than high-end specifications. In addition, it is difficult to fold the cord holding piece pivotally made of resin into a flat shape, and even if it is arranged assuming that it will be folded in two, it will be folded in three, which will hinder the lowering operation of the top plate. There is also

A cord holder made by sewing cloth into a cylindrical shape is also known (see, for example, Non-Patent Document 1). . This makes it difficult to protect the code in a nice way.

The above problems are not limited to lift tables used in offices, but also exist in lift tables used in various fields.

Japanese Patent Application No. 2018-122863

“Selection and mail order of sheet type tubes | MISUMI-VONA”, [online], [searched March 22, 2019], Internet <URL: https://r.gnavi.co.jp/847z7z150000/ equipment/seat

The present invention has been made in view of the above-mentioned points, and is used for an elevating table that can be easily folded flat without unnecessarily increasing the number of parts, and can protect the cord with good appearance. The purpose is to realize a code holder.

A cord holder for a lifting table according to the first aspect of the invention is capable of moving a top plate up and down with respect to a stationary member, and comprises a holder body for holding a cord and an end portion at one end of the holder body. A first mounting portion that is tiltable via a joint and is mounted to the stationary member, and a second mounting portion that is tiltable via a joint at the other end of the holder body and is mounted to the top plate. wherein the holder body is between a main cover having one or more intermediate joints between the end joints and one surface of the main cover provided at a portion avoiding the joints of the main cover. and sub-covers each forming a cord insertion space, and the intermediate joint is composed of a deformable member that constitutes the main cover.

The cord holder for the lifting table according to the invention of claim 2 is characterized in that, in the cord holder of claim 1, the main cover is belt-like and bendable at the intermediate joint portion , and the sub cover is a base. The cover comprises a pair of flap members whose end edges are supported by the side edges of the main cover and whose tip edges are butted against each other, and an engaging/disengaging element that joins the tip edges of these flap members so that they can be engaged and disengaged.

According to a third aspect of the present invention, there is provided a cord holder for a lifting table according to the second aspect, wherein the pair of flap members form a chevron shape when their tip edges are butted against each other.

According to a fourth aspect of the present invention, there is provided a cord holder for a lifting table according to the second or third aspect, wherein the flap members of the main cover and the sub cover are made of felt.

A fifth aspect of the present invention provides a cord holder for a lifting table according to the second, third, or fourth aspect, wherein the end portion of the flap member on the side of the first mounting portion and the end portion on the side of the second mounting portion are provided with , and a cut portion is formed in which the distal edge side is cut larger than the proximal edge side.

According to a sixth aspect of the present invention, there is provided a cord holder for a lifting table according to the second, third, fourth or fifth aspect, wherein the engaging/disengaging element is a line fastener.

A cord holder for a lifting table according to the invention of claim 7 is a cord holder for a lifting table capable of lifting and lowering a top plate with respect to a stationary member, comprising a holder main body for holding a cord, and one end of the holder main body. a first mounting portion which is tiltably provided via an end joint and is mounted to the stationary member; a second mounting portion;
The holder body includes a main cover and sub-covers forming cord insertion spaces between one surface of the main cover,
The main cover is belt-shaped, and the sub-cover comprises a pair of flap members whose base edges are supported by the side edges of the main cover and whose tip edges are butted against each other, and tip edges of these flap members. and an engaging/disengaging element that releasably joins the

According to the present invention, it is possible to realize a cord holder used for an elevating table that can be easily folded into a flat shape without unnecessarily increasing the number of parts, and can protect the cord with good appearance.

The front view which shows the raising/lowering table which concerns on one Embodiment of this invention. The left view which shows the raising/lowering table which concerns on the same embodiment. The rear view which shows the raising/lowering table which concerns on the same embodiment. The top view which shows the raising/lowering table which concerns on the same embodiment. The bottom side perspective view which shows the raising/lowering table which concerns on the same embodiment. The perspective view which shows the state except the top plate of the raising/lowering table which concerns on the same embodiment. The top view and front view which show the cord holder which concerns on the same embodiment. FIG. 8 is a cross-sectional view taken along line AA in FIG. 7; FIG. 8 is a cross-sectional view taken along line BB in FIG. 7; The perspective view which shows the usage condition of the cord holder which concerns on the same embodiment. FIG. 2 is an enlarged view of a main part of a cross section taken along line XX in FIG. 1;

An embodiment of the present invention will be described with reference to the drawings.

This embodiment is a case in which the present invention is applied to a lifting table used in an office or the like.

As shown in FIGS. 1 to 5, the elevating table T includes top plates 1A and 1B, a plurality of leg supports 2A and 2B for supporting the top plates 1A and 1B so that the height position can be adjusted, and leg supports 2A and 2B. and a frame 5 that connects the leg holding members 4A and 4B at portions other than the lower ends.

Specifically, as shown in FIGS. 1 to 5, the elevating table T includes a front top plate 1A and a rear top plate 1B. A front leg holding member 4A for holding the front leg support 2A, which is supported by the support 2A and supports both the left and right ends of the rear top plate 1B by the rear leg support 2B, respectively; Side end structures 3 are provided on the left and right, each having a rear leg holding member 4B that holds the rear leg support 2B and a frame 5 that interconnects the front and rear leg holding members 4A and 4B. It is of dual type. A wiring duct 6 connects the frame 5 of the left side end structure 3 and the frame 5 of the right side end structure 3 .

The front and rear leg supports 2A, 2B have the same construction. These front and rear leg braces 2A and 2B will be collectively referred to as "leg braces 2" without distinction. As shown in FIGS. 2, 5 and 6, each leg pillar 2 comprises a telescopic combination of a lower housing 11 and an upper housing 15, and these housings 11 and 15 are moved by an internal electric actuator (not shown). It is configured to be extended and retracted (for example, product name “Electric lifting device” manufactured by Linac Corporation). Since the structure of the leg support 2 is conventional, detailed description thereof will be omitted. Reference numeral 17 is a power system code for supplying electric power to the electric actuator inside.

The wiring duct 6 is integrally formed by bending a sheet metal material, and includes a duct body 31 and a lid body 33 detachably attached to the duct body 31. - 特許庁The duct body 31, as shown in FIGS. A horizontal plate 47 extends outward from the upper edge, and an upper plate 49 extends obliquely outward and upward from the extending ends of the horizontal plates 47 . As shown in FIG. 6, the cover 33 has a U-shaped cross section in which vertical walls 53 are integrally formed on both side edges of a bottom wall 51. The cover 33 is placed on the duct body 31 in a prone position with the vertical walls 53 facing downward. Alternatively, it can be attached to the duct body 31 in a supine posture with the vertical wall 53 directed upward. In this embodiment, two lid bodies 33 of the lifting table T are arranged adjacent to each other in the left-right direction. One lid body 33 is mounted on the duct body 31 in a prone posture, and the other lid body 33 is mounted on the duct body 31 in a supine posture.

Mounting bases 8 for the desktop panel 7 are arranged near both ends of the wiring duct 6, as shown in FIG.

The top plates 1A and 1B are supported by the plurality of leg posts 2A and 2B erected in this way so that the height positions thereof can be changed. Specifically, the left and right ends of the front top plate 1A are respectively supported by the pair of front leg supports 2A, and the left and right ends of the rear top plate 1B are supported by the pair of rear leg supports 2B. They support each other.

More specifically, as shown in FIGS. 2, 5, and 6, top plate receivers 61 for receiving the lower surfaces of the top plates 1A and 1B are provided at the upper ends of the respective leg supports 2A and 2B, and the top plate receivers 61 extend horizontally. A top plate support frame 65 connects the arms 63 of the left and right adjacent leg supports 2A and 2B. The top plates 1A and 1B are fastened to the top plate receiver 61 and the top plate support frame 65 using fasteners such as screws (not shown).

In this embodiment, as shown in FIG. 4, between the front top plate 1A and the rear top plate 1B, a sufficient gap d0 for arranging the desktop panel 7, for example, a gap of about 90 mm is formed. The height positions of the front top plate 1A and the rear top plate 1B can be independently changed steplessly from the lower limit position (D) to the upper limit position (U). there is

Furthermore, in this embodiment, as shown in FIG. 6, the control box 71 is supported by the top plate support frame 65 . Connected to the control box 71 are power system cords 17 for supplying electric power to the electric actuators therein, and power system cords 73 for supplying power to the control box 71 from under the floor. That is, the power system cord 73 extending from the control box 71 is guided through the cord holder 9 to the wiring duct 6, guided by the wiring duct 6, and led out onto the floor F from the end thereof.

As shown in FIGS. 6 to 11, the cord holder 9 includes a holder body 81 that holds the cord 73, and a stationary member provided at one end of the holder body 81 so as to be tiltable via an end joint 87. A first attachment portion 83 attached to the wiring duct 6, and a second attachment portion 85 provided tiltably at the other end of the holder body via a joint 89 at the end and attached to the top plates 1A and 1B, The holder main body 81 is provided with a main cover 91 having one or more intermediate joints 93 between the end joints 87 and 89, in this embodiment one intermediate joint 93, and a portion of the main cover 91 avoiding the joints 93. and sub-covers 95 each forming a cord insertion space 9s between them and one surface of the main cover 91 .

Specifically, the holder main body 81 includes the main cover 91 and the sub cover 95 as described above. The main cover 91 is made of felt and has a double structure including an outer cover portion 91a and an inner cover portion 91b attached to the inner surface of the outer cover portion 91a. possible belt-like. That is, the intermediate joint 93 is made of felt, which is a deformable member that constitutes the main cover 91 . A gap 91s is formed between the outer cover portion 91a and the inner cover portion 91b.

The sub-cover 95 comprises a pair of flap members 97 whose base edges are respectively supported by the side edges of the main cover 91 and whose tip edges are butted against each other, and the tip edges of these flap members 97 are detachably connected to each other. It is provided with a line fastener 99 which is an element. The flap member 97 is made of felt and has a chevron shape when the tip edges are butted against each other. At the end on the side of the mounting portions 83 and 85, a cut portion 97a is formed in which the tip edge side is cut larger than the base edge side. It is The wire fastener 99 consists of a tape 99a whose proximal end is sewn to the distal end of the flap member 97, coupling teeth 99b provided on the distal end of the tape 99a and capable of being brought into contact with and separated from each other, and these coupling teeth 99b being brought into contact with each other by a sliding operation. It has a slider 99c for operating the separation.

The first mounting portion 83 includes a mounting portion main body 83a formed on the tip end side of the felt piece 92 integrally extending from the inner cover portion 91b of the main cover 91, and a magnet attached to the outer surface, that is, the lower surface of the mounting portion main body 83a. 83b, and a magnet cover 83c which is attached to the lower surface of the magnet 83b in order to prevent the magnet 83b from coming off and which is sewn to the mounting portion main body 83a in the vicinity of the outer circumference thereof. The cord holder 9 is attached to the wiring duct 6 by attracting the wiring duct 6 using the magnetic force of the magnet 83b. More specifically, in this embodiment, as shown in FIG. 11, the first attachment portion 83 of the cord holder 9 is attached to the bottom wall 51 of the lid 33 attached to the duct body 31 in a supine posture. There is. The base end side of the felt piece 92 functions as an end joint 87 between the holder main body 81 and the first mounting portion 83 .

The second mounting portion 85 has a base end disposed in the space between the outer cover portion 91a and the inner cover portion 91b of the main cover 91, and is attached to the distal end of the strip-shaped flexible sheet 101 sewn to the inner cover portion 91b. formed on the side. Specifically, as shown in FIG. 10, the second mounting portion 85 is formed by crimping eyelets 85a to a plurality of locations of the flexible sheet 101 to form screw insertion holes 85x. The top plates 1A and 1B are attached to the lower surfaces of the top plates 1A and 1B by screwing screws 103 inserted from below into nuts (not shown) embedded in the bottom sides of the top plates 1A and 1B. A portion of the flexible sheet 101 exposed outside the main cover 91 on the base end side functions as an end joint 89 between the holder main body 81 and the second mounting portion 85 .

As shown in FIG. 6, power system cords 73 extending from the control box 71 are led out to the lower space of the top plate 1A through cord insertion holes provided in the top plate support frame 65. It is led into the cord insertion space 9s from the upper end opening 9a of the cord holder 9 attached to the lower surface. The cord 73 in the cord insertion space 9s is drawn out from the lower end opening 9b of the cord holder 9 onto the wiring duct 6, guided by the wiring duct 6, and guided to the end of the lifting table T. As shown in FIG. The cord 73 led to the end is lowered onto the floor F and connected to an outlet or the like under the floor.

To explain the operation of this embodiment, the front top board 1A can be raised and lowered by extending and contracting the front leg supports 2A. When the front top plate 1A is moved up and down, the distance between this top plate 1A and the common wiring duct 6 changes, and the front cord holder 9 interposed therebetween bends and deforms like a pantograph. . Similarly, the rear top plate 1B can be raised and lowered by extending and contracting the rear leg supports 2B. When the rear top plate 1B is moved up and down, the distance between this top plate 1B and the common wiring duct 6 changes, and the rear cord holder 9 interposed therebetween bends and deforms like a pantograph. . 1 to 5 show a state in which the front top plate 1A is held at a low position and the rear top plate 1B is stopped at a high position. When the top plates 1A and 1B are at a high position, the degree of bending of the cord holder 9 is small, and the degree of bending of the cord holder 9 increases as the top plates 1A and 1B descend.

With such a configuration, the intermediate joint 93 is composed of a deformable member that constitutes the main cover 91, so that the cord holder 9 as a whole can be bent and deformed with a small number of parts. The cord 73 can be held in the cord insertion space 9s so as not to be damaged regardless of the upward/downward movement of the top plates 1A and 1B. In addition, when the top plates 1A and 1B are moved up and down, the cord holder 9 only performs pantographic bending deformation due to the presence of the joints 87, 89, and 93, so that the top plates 1A and 1B are lowered to the lower limit. In this case, the cord holder 9 can be easily folded flat, and the cord holder 9 can be neatly stored under the top plates 1A and 1B.

Further, since the flap members 97 of the main cover 91 and the sub cover 95 are made of felt, they are flexibly deformed so as to be crushed when the top plates 1A and 1B are lowered to the lower limit. It is possible not to interfere with the operation of lowering 1A and 1B. Moreover, since the flap members 97 of the main cover 91 and the sub cover 95 are made of felt, the production of the cord holder 9 can be completed mainly by sewing work, effectively reducing the number of production steps. be able to. Furthermore, since the intermediate portion of the main cover 91 made of felt is used as the intermediate joint 93 , the smoothly curving joint 93 can be realized, and excessive force applied to the cord 73 can be suppressed.

In addition, the sub-cover 95 has a pair of flap members 97 whose base edges are supported by the side edges of the main cover 91 and whose tip edges are butted in a chevron shape, and the tip edges of these flap members 97 can be engaged and disengaged. Since the wire fastener 99 to be joined is provided, installation and maintenance of the cord 73 can be easily performed by opening and closing the wire fastener 99 . Furthermore, by completely releasing the wire fastener 99, the entire cord insertion space 9s can be released to the outside, so that the workability of wiring can be improved.

At the end of the flap member 97 on the side of the attachment portions 83 and 85, a cut portion 97a is formed in which the tip edge side is cut larger than the base edge side. Even when the angle between the portions 83 and 85 is close to 90 degrees, the upper end opening 9a and the lower end opening 9b can be secured near both ends of the holder body 81. FIG.

In addition, this invention is not limited to embodiment described above.

For example, in the above-described embodiment, the first attachment portion of the cord holder is attached to the wiring duct, which is a stationary member, but it may be attached to a stationary member other than the wiring duct, such as a floor material.

Further, in the above-described embodiment, only one intermediate joint is provided in the holder main body so that the holder main body of the cord holder can be folded in two. may

Furthermore, in the above-described embodiment, the flap members of the main cover and the sub-cover are made of felt, but they may be made of materials other than felt. In the above-described embodiment, the flap member of the sub-cover forms a chevron shape when the tip edges are butted against each other, but other shapes such as a dome shape may be adopted.

In addition, although a gap is provided between the outer cover portion and the inner cover portion of the main cover in the above-described embodiment, this gap does not necessarily have to be provided. However, if the cord holder has such a gap, it is possible to insert a core material into the gap so that the deformed portion of the cord holder is limited only to the joint portion.

Moreover, in the above-described embodiment, the main cover has intermediate joints between the end joints, but it is also possible to adopt a mode in which the main cover does not have intermediate joints. As an example of such an aspect, the main cover is non-deformable, one of the first and second mounting portions is slidably held by the stationary member or the top plate, and the other is positioned relative to the stationary member or the top plate. is held unchangeable. Even in such a mode, when the top plate is moved up and down, the one attachment portion of the cord holder slides relative to the stationary member or the top plate while maintaining the shape of the main cover. Since the bending angle of the joint can be changed, the cord holder can be easily folded flat when the top plate is lowered to the lower limit while preventing an unnecessary increase in the number of parts. can hold well. As another example, the main cover may be flexible and bendable while maintaining a state parallel to a predetermined plane (perpendicular to the top plate, for example) between the joints of the ends. Even in such a mode, when the top plate is moved up and down, the main cover bends as a whole while maintaining a state parallel to a predetermined plane. is lowered to the lower limit, the cord holder can be easily folded flat, and the cord holder can be neatly stored under the top plate.

The lift table may have any configuration as long as the top plate can move up and down with respect to the stationary member, and may have only one top plate.

In addition, various modifications may be made without departing from the gist of the present invention.

T... Lifting table 1A, 1B... Top plate 6... Stationary member (wiring duct)
9 cord holder 9s cord insertion space 81 holder main body 83 first mounting portion 85 second mounting portion 87, 89 end joint 91 main cover 93 middle joint 95 sub cover

Claims (7)

A cord holder for an elevating table capable of elevating a top plate with respect to a stationary member, comprising: a holder body for holding a cord; a first mounting portion attached to a member; and a second mounting portion tiltably provided at the other end of the holder body via a joint at the end and attached to the top plate,
The holder body defines a cord insertion space between a main cover having one or more intermediate joints between the end joints and one surface of the main cover provided at a portion avoiding the joints of the main cover. each forming a sub-cover,
A cord holder for a lift table, wherein the intermediate joint is formed by a deformable member that constitutes the main cover. The main cover is belt-like and bendable at the intermediate joint portion , and the sub-cover is a pair of flap members whose base edges are supported by the side edges of the main cover and whose tip edges are butted against each other. 2. A cord holder for a lifting table according to claim 1, further comprising an engaging/disengaging element for releasably connecting the tip edges of the flap members. 3. A cord holder for a lifting table according to claim 2, wherein said pair of flap members form a chevron shape with their tip edges facing each other. 4. A cord holder for a lifting table according to claim 2, wherein the flap members of said main cover and said sub-cover are made of felt. 5. A cut-off portion is formed in the end of the flap member on the side of the first mounting portion and the end on the side of the second mounting portion in which the tip edge side is cut larger than the base edge side. Cord holder for the lifting table described. 6. A cord holder for a lifting table according to claim 2, 3, 4 or 5, wherein said engaging/disengaging element is a line fastener. A cord holder for an elevating table capable of elevating a top plate with respect to a stationary member, comprising: a holder body for holding a cord; a first mounting portion attached to a member; and a second mounting portion tiltably provided at the other end of the holder body via a joint at the end and attached to the top plate,
The holder body includes a main cover and sub-covers forming cord insertion spaces between one surface of the main cover,
The main cover is belt-shaped, and the sub-cover comprises a pair of flap members whose base edges are supported by the side edges of the main cover and whose tip edges are butted against each other, and tip edges of these flap members. and a detachable element detachably joining the cord holder of the lifting table.

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