JP6642894B2 - Cord holder - Google Patents

Description

  The present invention relates to a cord holder for holding a cord.

Conventionally, as shown in FIG. 7, in an automatic door, a person or an object approaching the door D is detected by a sensor S attached to a front portion, and the door is automatically opened and closed.
The sensor attached to the front part of the automatic door as described above is electrically connected by a cord to a power supply or a control unit that controls a drive motor of the timing belt.

  When the cable connecting the sensor and the control unit is routed inside the sash via the upper part of the sash that constitutes the framework of the automatic door, the code corresponding to each sash with a different shape depending on the sash maker. There is a problem in that the wiring must be performed, and the work of wiring the code at the setting site of the automatic door becomes complicated.

  In order to eliminate such complicated wiring work of the cord, the cord is hardly affected by the difference in the shape of the sash by inserting the cord through the loop of the timing belt and connecting the sensor and the control unit. (See, for example, Patent Document 1).

Japanese Utility Model Publication No. 63-86279

  However, when connecting the sensor and the control unit by inserting the cord through the belt of the timing belt, loosening of the tension of the timing belt or loosening of the cord due to the influence of vibration generated when the automatic door is operated, etc. The timing belt may come into contact with the cord, and the cord may be damaged.

  The present invention has been made in view of the above, and provides a cord holder capable of facilitating a cord laying operation and preventing the cord from being damaged by contact with the timing belt. With the goal.

In order to solve the above-mentioned problem and achieve the object, a cord holder according to claim 1 of the present invention is a tubular member that is inserted through a loop of a timing belt, and into which a cord is inserted. Having a portion, wherein the timing belt is prevented from moving toward the code by the tubular portion so that the code does not contact the timing belt,
The cord connects a sensor attached to a front part of the automatic door and a control unit of a drive motor of the timing belt, and a box containing a microcomputer of the control unit; and a door of the automatic door. Holding portion, which includes a rail on which a door roller is mounted so as to move the door using the rotation drive of the timing belt, and a portion to be held between the door hanging portion and a portion for hanging the door. The door hanging part has a component mounting groove provided on an upper end surface thereof extending in parallel with the extending direction of the rail, and the holding part is connected to the control part on one end side of the cylindrical part. A plate-like portion connected to a position one step below the bottom surface of the tubular portion at an opening end portion on the side where the cord is pulled out, with the box being on the upper side and the door hanging portion being on the lower side. Pinched by A pair of tongue pieces that are fitted along the inner edge of the component mounting groove in a direction orthogonal to the extending direction of the component mounting groove are provided on both sides of the holding piece part. It is characterized by the following.

  Further, in the cord holding device according to claim 2 of the present invention, in the above invention, it is preferable that the tubular portion is set to have an in-cylinder dimension through which a connector provided at a terminal portion of the cord can be inserted. Features.

  The cord holder according to claim 1 of the present invention is configured such that the cord is inserted into the cylinder of the cylindrical portion that is inserted through the inside of the loop of the timing belt. Since the cord can be routed, and even when the timing belt is moved toward the cord, the tubular portion prevents the cord from contacting the timing belt. In addition, the cord can be easily arranged, and the cord can be prevented from being damaged by contact with the timing belt.

  The cord holder according to claim 2 of the present invention is arranged such that the tubular portion is set to have an in-cylinder dimension through which a connector provided at a terminal portion of the cord can be inserted. The end of the cord on the side provided with can be penetrated from the opening on one end side of the tubular part to the opening on the other end side, so that the cord is inserted into the cylinder of the tubular part. Can be easily performed.

  The cord holder according to claim 1 of the present invention, wherein the cord connects a sensor attached to a front portion of the automatic door and a control unit of a drive motor of the timing belt, and the micro unit of the control unit A box in which a computer is housed, and a door suspender serving as a part for suspending the door including a rail on which a door wheel is mounted so as to move the door of the automatic door by using the rotation drive of the timing belt. Since it has a holding portion that is a portion to be held between the box and the portion, without using a dedicated fixing member for fixing the cord holding tool, using the box and the door hanging portion It can be fixed to the vicinity of the control unit to which the cord is connected, and as a result, the work of arranging the cord can be facilitated.

FIG. 1 is a schematic diagram of an automatic door in which a cord holder according to an embodiment of the present invention is incorporated, and is a diagram illustrating a state where an inspection cover of a front portion is removed. FIG. 2 is an exploded perspective view of the vicinity of a mounting portion of the cord holder according to the embodiment of the present invention. FIG. 3 is a sectional view of the automatic door around a portion where the cord holder is incorporated. 4A is a perspective view of the cord holder, and FIG. 4B is a view showing a state in which the cord is inserted into the tubular portion of the cord holder shown in FIG. FIG. 5 is an exploded perspective view around a mounting portion of a cord holder according to a modification. FIG. 6 is a sectional view of the automatic door around a portion where the cord holder shown in FIG. 5 is incorporated. FIG. 7 is a diagram for explaining a conventional automatic door.

  Hereinafter, preferred embodiments of the cord holder according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic view of an automatic door 100 in which a cord holder 1 according to an embodiment of the present invention is incorporated, and is a view showing a state where an inspection cover 11 at a front portion is removed. FIG. 2 is an exploded perspective view of the vicinity of a mounting portion of the cord holder 1 according to the embodiment of the present invention. FIG. 3 is a cross-sectional view of the automatic door 100 around a portion where the cord holder 1 is incorporated. 4A is a perspective view of the cord holder 1, and FIG. 4B is a view showing a state where the cord is inserted into the tubular portion 91 of the cord holder 1 shown in FIG.

  The cord holder 1 according to the embodiment of the present invention is incorporated in the automatic door 100, and connects the sensor 30 attached to the front part of the automatic door 100 and the control unit 60 of the drive motor 51 of the timing belt 54. The cord 80 is held so as not to contact the timing belt 54.

  The automatic door 100 includes a main body frame 10 that forms a skeleton of the automatic door 100, a door 20 that can be opened and closed at an entrance and exit, a sensor 30 that detects a person or an object approaching the door 20, and a suspension of the door 20. The door suspension unit 40, the drive mechanism 50 for driving the door 20 to open and close, the control unit 60 for controlling the drive mechanism 50 based on a signal output from the sensor 30, and the door 20 and the drive mechanism 50 are connected. It has a connector 70 and a cord holder 1 that holds a cord 80 that electrically connects the sensor 30 and the controller 60.

  The main body frame 10 is made of, for example, an aluminum material, and those having various shapes are commercially available from a plurality of manufacturers.

An inspection cover 11 is detachably attached to the main body frame 10 at a front portion of the main body frame 10.
The inspection cover 11 can easily maintain the drive mechanism 50 disposed inside the main body frame 10 by using the opening opened by removing the inspection cover 11 from the main body frame 10.

The sensor 30 detects a person or an object approaching the door 20 and outputs a signal necessary for controlling the opening and closing of the door 20 to the control unit 60.
The sensor 30 is attached to a front portion of the automatic door 100. More specifically, the sensor 30 is attached to the inspection cover 11 on the front portion of the main body frame 10, and is connected to the control unit 60 and a power supply (not shown) by a cord 80.

  The door suspending portion 40 is a portion that suspends the door 20 including the rail 41 serving as a guide portion of the door roller 71 provided on the connecting tool 70.

The door hanging portion 40 has a rail 41 extending along the opening and closing movement direction of the door 20, and is fixed to the plurality of flat bars 12 (see FIGS. 1 and 3) held by the main body frame 10 with screws. It has become.
That is, the door suspension unit 40 is not directly screwed and fixed to the main body frame 10, but is fixed to the main body frame 10 via the flat bar 12.

  As shown in FIG. 2, a component mounting groove 42 extending parallel to the extending direction of the rail 41 is provided on the upper end surface of the door hanging portion 40.

The component mounting groove 42 is held at an arbitrary position along the extending direction of the screw 13 without drilling.
For this reason, a box 61 a and a terminal block 62, which will be described later, of the control unit 60 are screwed and fixed to the upper end surface of the door suspension unit 40 without making a hole using the component mounting groove 42. .

  As shown in FIG. 1, the drive mechanism 50 includes a drive pulley 52 connected to a drive motor 51, a driven pulley 53 disposed at a position separated from the drive pulley 52, and a drive pulley 52 and a driven pulley 53. And the passed timing belt 54.

  The drive motor 51 and the driven pulley 53 are fixed to the door suspension unit 40, and the door suspension unit 40 is fixed to the main body frame 10 via the flat bar 12 as described above. Is fixed to a predetermined position in the inside.

The control unit 60 includes a control box 61 in which a microcomputer (not shown) is accommodated in a box 61a, and a terminal block (see FIG. 1) which is a connection portion of a cord 80 connected to the sensor 30.
The control box 61 and the terminal block 62 are fixed to the upper end surface of the door hanging portion 40 using the component mounting groove 42 as described above.

  The connecting member 70 is a part that connects the door 20 and the timing belt 54 so that the door 20 can be opened and closed using the rotational drive of the timing belt 54.

  As shown in FIG. 3, the connecting tool 70 includes a door wheel 71 provided to be disposed above the door 20 in a state of being connected to the upper end surface of the door 20 on the rail 41 of the door hanging portion 40. This is a portion where the door 20 is suspended by the door suspension unit 40 by being placed.

The cord holder 1 is formed by cutting and bending a metal plate member.
This cord holder 1 is inserted through the inside of the loop of the timing belt 54, and has a cylindrical portion 91 into which the cord 80 is inserted into the cylinder, a box 61 a of the control section 60, and the door hanging section 40. And a holding portion 92 which is a portion to be held therebetween.

  The tubular portion 91 has a rectangular tubular shape, and the width of the timing belt 54 in the direction penetrating through the loop is set to be larger than the width of the timing belt 54.

Further, the cylindrical portion 91 is set to have an in-cylinder dimension through which a connector 81 provided at a terminal portion of the cord 80 can be inserted.
For this reason, the tubular portion 91 can penetrate the end of the cord 80 on the side where the connector 81 is provided from the opening on one end side of the tubular portion 91 to the opening on the other end side. ing.
In this embodiment, the tubular portion 91 is illustrated as having a rectangular tubular shape. However, the tubular portion 91 is not limited to this as long as it is tubular, and may be, for example, cylindrical.

  The holding portion 92 is a plate-shaped portion connected to the opening end on one end side of the cylindrical portion 91 at a position one step lower than the bottom surface of the cylindrical portion 91.

The holding portion 92 is fixed between the box 61a and the upper end surface of the door hanging portion 40 in a state where it is disposed between the box 61a and the upper end surface of the door hanging portion 40. 40.
For this reason, the cord holder 1 uses the box 61 a and the door suspension unit 40 to connect the cord 80 to the control unit without using a dedicated fixing member for fixing the cord holder 1. It can be fixed to around 60.

  Further, since the holding portion 92 is connected to the opening end on one end side of the cylindrical portion 91 at a position one step lower than the bottom surface of the cylindrical portion 91, the holding portion 92 interferes with the opening of the cylindrical portion 91 on the connected side. This makes it easier to insert the cord 80 from the opening of the tubular portion 91.

  More specifically, the holding portion 92 includes a holding piece portion 92 a held between the box 61 a and the door hanging portion 40, and a component mounting groove 42 provided on an upper end surface of the door hanging portion 40. And a fitting piece 92b which is a portion fitted along.

  The fitting pieces 92b face each other in a direction perpendicular to the extending direction of the component mounting groove 42 extending in parallel with the extending direction of the rail 41, and the component mounting groove 42 in a direction perpendicular to the extending direction of the component mounting groove 42. A pair of tongue pieces 92c fitted along the inner edge of the holding piece 92a are provided on both sides of the holding piece 92a.

  The fitting piece 92b has a function of positioning the mounting position of the cord holder 1 with respect to the door suspension 40 in a direction perpendicular to the direction in which the rail 41 extends.

  Further, the fitting piece 92b also functions as a part for temporarily holding the cord holder 1 on the upper end surface of the door hanging part 40 when assembling the cord holder 1 so as to be sandwiched between the box 61a and the door hanging part 40. No.

  In the cord holder 1 according to the embodiment of the present invention, since the cord 80 is inserted into the cylinder of the tubular portion 91 that is inserted through the loop of the timing belt 54, the cord holder 1 passes through the loop of the timing belt 54. Since the cord 80 can be routed, and even when the timing belt 54 is moved toward the cord 80, the cord 80 is not brought into contact with the timing belt 54 by the tubular portion 91. In addition, the work of arranging the cord 80 can be facilitated, and the cord 80 can be prevented from being damaged by contact with the timing belt 54.

  Further, in the cord holder 1 according to the embodiment of the present invention, since the tubular portion 91 is set to have an in-cylinder dimension through which the connector 81 provided at the terminal portion of the cord 80 can be inserted, the tubular portion 91 is Since the end of the cord 80 on the side where the connector 81 is provided can be penetrated from the opening on one end side of the tubular portion 91 to the opening on the other end side, the cord can be inserted into the cylinder of the tubular portion 91. It is possible to easily perform the wiring work for inserting the cable 80.

  In the cord holder 1 according to the embodiment of the present invention, the cord 80 connects the sensor 30 attached to the front part of the automatic door 100 and the control unit 60 of the drive motor 51 of the timing belt 54. , A box 61 a containing a microcomputer of the control unit 60, and a door 20 including a rail 41 on which a door wheel 71 is mounted so as to move the door 20 of the automatic door 100 using the rotation drive of the timing belt 54. And the holding portion 92 serving as a portion to be held between the door holding portion 40 serving as a portion for holding the cord holder 1 without using a dedicated fixing member for fixing the cord holder 1. By using the box 61a and the door suspension unit 40, the cord 80 can be fixed to the vicinity of the control unit 60 to which the cord 80 is connected. It can be.

(Modification)
Next, a modified example of the cord holder 1 according to the embodiment of the present invention will be described with reference to FIGS.
FIG. 5 is an exploded perspective view around a mounting portion of the cord holder 2 according to the modification. FIG. 6 is a sectional view of the automatic door 100 around a portion where the cord holder 2 shown in FIG. 5 is incorporated.

The cord holder 2 of the modified example is different from the cord holder 1 of the embodiment in that the cord holder 2 is fixed to the door hanging portion 40 with screws.
The other configuration is the same as that of the embodiment, and the same components as those of the embodiment are denoted by the same reference numerals and the description thereof is omitted.

The cord holder 2 of the modification is formed by cutting and bending a metal plate member.
The cord holder 2 of this modified example is inserted through the loop of the timing belt 54 and is screwed and fixed to the cylindrical portion 91 into which the cord 80 is inserted into the cylinder and the door hanging portion 40. And a fixing portion 93.

  In the cord holder 2 of the modified example, since the cord 80 is inserted into the cylinder of the tubular portion 91 that is inserted through the loop of the timing belt 54, the cord 80 is inserted through the loop of the timing belt 54. Since the wiring can be performed, and even when the timing belt 54 is moved toward the cord 80, the cord 80 is prevented from contacting the timing belt 54 by the tubular portion 91. As with the cord holder 1, the cord 80 can be easily laid out, and the cord 80 can be prevented from being damaged by contact with the timing belt 54.

  Although the cord holders 1 and 2 according to the embodiment and the modified example of the invention are made of metal, the invention is not limited thereto, and the cord holders made of other materials such as a resin material may be used.

  As described above, the invention made by the inventor has been specifically described based on the embodiments of the above-described invention. However, the present invention is not limited to the above-described embodiments of the invention, and does not depart from the gist of the invention. Can be variously changed.

1, 2 cord holder 10 body frame 11 inspection cover (front part)
12 Flat Bar 13 Screw 20 Door 30 Sensor 40 Door Suspension 41 Rail 42 Parts Mounting Groove 50 Drive Mechanism 51 Drive Motor 52 Drive Pulley
53 driven pulley
54 Timing Belt 60 Control Unit 61 Control Box 61a Box 62 Terminal Block 70 Connecting Tool 71 Door Roller 80 Code 81 Connector 91 Cylindrical Part 92 Holding Part 92a Holding Part 92b Fitting Part 92c Tongue Piece 93 Fixing Part 100 Automatic Door

Claims (2)

The timing belt is inserted through the loop, and has a tubular portion into which a cord is inserted, and the timing belt is prevented from moving toward the cord by the tubular portion. The cord is not contacted with the timing belt,
The code connects a sensor attached to a front portion of the automatic door and a control unit of a drive motor of the timing belt, and a box containing a microcomputer of the control unit, and a door of the automatic door. Holding portion, which includes a rail on which a door roller is mounted so as to move the door using the rotation drive of the timing belt, and a portion to be held between the door hanging portion and a portion for hanging the door. Has,
The door hanging portion,
A component mounting groove extending parallel to the extending direction of the rail is provided on an upper end surface,
The holding portion,
A plate-shaped portion connected to a position one step lower from the bottom surface of the cylindrical portion to an open end portion on one end side of the cylindrical portion, which is a side from which the cord is drawn out to the control portion, wherein the box is an upper side. Having a holding piece portion that is held at a position where the door hanging portion is on the lower side,
A pair of tongue pieces which are fitted along the inner edge of the component mounting groove in a direction perpendicular to the extending direction of the component mounting groove are provided on both sides of the holding piece. . The tubular portion,
The cord holder according to claim 1, wherein a connector provided at a terminal portion of the cord is set to have an in-cylinder dimension that allows insertion.

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