JPH0714608Y2 - Power supply device for self-propelled switchgear - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a device for opening / closing an opened / closed member such as a window or a sunroof of an automobile, in particular, a self-propelled type in which a driving source for opening / closing drive moves together with the opened / closed member. The present invention relates to improvement of a power supply device for a switchgear.

[Prior Art] A power window regulator in which this type of self-propelled switchgear is applied to a window replaces the conventional X-arm system or wire drive system in which the drive source is fixed to the door body side. By fixing it to the window glass and moving it integrally with it, the number of parts is greatly reduced, and it is advantageous in that it can be effectively used in the door space. Proposals for this type of power window regulator are disclosed in Japanese Utility Model Laid-Open No. 60-68284 and Japanese Patent Laid-Open No. 61-28648.
This can be seen in Japanese Patent Publication No. 5, but here, the configuration of Japanese Utility Model Publication No. 60-68284 will be described as an example.

The power window disclosed in the publication is, as shown in FIG. 12, a glass holder 12 fixed to a lower end portion of a window glass 10, a forward / reverse rotatable motor 14 fixed to the glass holder 12, A pinion gear 18 that is rotatably driven by the motor 14 via a worm gear 16 and the pinion gear 18 that is vertically fixed to the in-panel of the door.
And a rack 20 that meshes with the rack.

Further, according to this power window, since the window is driven by the rack 20 and the pinion gear 18, the number of parts is small, and the door 20 has the rack 20.
Since it is only fixed vertically, the space inside the door can be used effectively.

[Problems to be Solved by the Invention] By the way, according to the above-mentioned power window regulator, since the motor 14 which is the drive source for opening and closing drive moves together with the window glass 10 which is the member to be opened and closed, Power supply wire 22 for powering this motor 14
Must also be configured so that it can freely move inside the door following the motor 14.

Therefore, in the power supply system having such a configuration,
The length of the power supply wire 22 must be a length that allows a slight margin for the movement stroke of the motor, and since the movement path of the power supply wire 22 cannot be regulated, the looseness of the power supply wire 22 is It may come into contact with the inner wall of the door or other members to generate unpleasant mechanical noise, or the power supply wire 22
There is a problem in that there is a possibility that these may be damaged by the contact with the member and cause functional failure.

However, conventionally, for this type of power window,
No power supply device has been provided that can supply power to a movable drive source without any trouble.

The present invention has been made in view of such a conventional problem, and an object thereof is to solve the above-mentioned problems, eliminate the looseness of the power supply wire, and perform self-propelled opening and closing that can perform reliable power supply. An object is to provide a power supply device for the device.

[Means for Solving Problems] In order to achieve the above object, the present invention provides a self-propelled opening / closing device in which a drive source for opening / closing a member to be opened / closed moves together with the member to be opened / closed. The power supply wire for supplying electric power to the drive source and one of the opened / closed member side and the fixed portion side are provided, and the power supply wire is fed and wound so that the power supply wire has an optimum length according to the movement of the opened / closed member. And a wire winding means for winding the wire winding means. The wire winding means has a spiral wire winding groove that is widened toward the end, and the end portion is fixed to the spiral large diameter position in the wire winding groove. The wound power supply wire, which is wound around the wire winding groove in a small-diameter direction, is rotated and wound, and the winding rotor.
Urging means for applying a rotational urging force in the winding direction of the power supply wire.

[Operation] With the above configuration, according to the present invention, the length of the power supply wire for supplying electric power from the fixed portion side to the drive source is set to the optimum length without slack, regardless of the movement of the opened / closed member. be able to.

Further, when the power feeding wire is sequentially wound into the spirally wound wire winding groove formed in the wire winding means, the effective diameter of the winding rotor increases, so that the rotation biasing force of the biasing means is increased. Even if the power supply increases, the tension applied to the power supply wire can be reduced. And it is easy to keep the tension constant.

Therefore, in the present invention, there are no problems such as mechanical noise caused by the contact of the power supply wire with other members, damage of the power supply wire, etc. High power supply can be achieved with a relatively simple structure.

[Embodiment] Next, a preferred embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a preferred embodiment of a power window to which the self-propelled switchgear according to the present invention is applied.
The drawing shows an enlarged view of a portion where the rack and the pinion shown in FIG. 1 mesh with each other.

The power window of the present embodiment includes a rack 40 fixed and supported along the moving direction of the window glass 30, which is a member to be opened and closed, a pinion gear 50 that meshes with the rack 40, and a motor that drives the pinion gear 50 to rotate forward and backward. It has 60 and a support member 70 for supporting and fixing the motor 60 to one end side of the window glass 30.

The rack 40 has rack teeth 40a formed in a direction orthogonal to the moving direction of the window glass 30, and is fixed to a rack mounting bracket (hereinafter referred to as bracket) 41.

As shown in FIG. 3, the bracket 41 has U-shaped upper and lower ends and is attached to the door inner plate 32 by the bolts 33, 3 by mounting pieces 41a, 41a.
Fixed with 3. The rack 40 and the bracket 41 fixed in this way are formed along the rack line R that is curved with a curvature substantially the same as the curvature of the glass center line movement locus P.

Further, as shown in FIG. 4, the bracket 41 has key-shaped guide members 42 and 43 formed on both sides in the width direction thereof, and these and first and second guided portions 65 and 66 which will be described later. Each is formed to engage.

Further, the motor 60 is formed integrally with the gear housing 62, and the output of the motor 60 is worm-decelerated by a reduction mechanism (not shown) in the gear housing 62 to provide a pinion gear.
Transmitted to 50.

Further, the gear housing 62 is provided with the support member 70.
And a member for engaging with the bracket 41.

That is, as shown in FIGS. 2 and 4, on the upper side of the gear housing 62, mounting pieces 63 and 64 for mounting on the support member 70 are formed. In addition, bracket 4
A first guided portion 65 that engages with the one guide portion 42 and a second guided portion 66 that engages with the other one guide portion 43 are formed at 1.

Further, as shown in FIG. 2, a lead wire 67 whose one end side is connected to the motor 60 is disposed below the gear housing 62, and a connector attached to the other end portion of the wire 67.
68 is attached and fixed to the gear housing 62 using a support arm 69.

The support member 70 holds one end side of the window glass 30 with, for example, an adhesive agent, and further, by a pair of fixing members 72 and 73 for fixing the motor 60, screws to the attachment pieces 63 and 64 of the gear housing 62, respectively. It is fixed at.

In addition, the one fixing member 72 has a third guided portion 74 whose one edge is further bent into an L shape. As shown in FIGS. 2 and 4, the third guided portion 74 is arranged so as to cover the outside of one guide portion 42 of the bracket 41.

Next, the motor 60 of the self-propelled power window device described above.
A power supply device for the power supply will be described with reference to FIG.

The characteristic feature of the present invention is that the power supply wire 86 that supplies electric power from the fixed part side to the motor 60 and the power supply wire 86 that is fed out and wound so that the power supply wire 86 has an optimum length according to the movement of the window glass 30. Take-up wire winder 82
And, there is.

In the present invention, the wire winder 82 may be provided on either the opened / closed member (moving part) side or the fixed part side, and in the present embodiment, it is provided on the fixed part side.
That is, in the wire winder 82, the lead wire 67 is pulled out along the moving direction of the motor 60 through the opening 84,
Further, it is attached and fixed to the door inner plate 32 adjacent to the upper end of the rack 40 so as to be wound up. The wire winder 82 is formed so as to wind the power supply wire 86 with a predetermined biasing force. Also, this wire winder
A connector 88 is provided at the end of the power supply wire 86 wound around the 82, and the connector 88 is provided with the lead wire 67.
Is detachably connected to the connector 68.

Further, the wire winder 82 is connected with a lead wire 80 whose one end side is connected to a battery. Then, power is supplied from the battery to the motor 60 via the lead wire 80, the power supply wire 86, and the lead wire 67.

5 and 6 show a specific structure of the wire winder 82 of the embodiment.

The wire winder 82 of the embodiment includes a rotary pulley 82a that winds the power supply wire 86, one end fixed to a fixed plate 82c and the other end fixed to the rotary pulley 82a, and the rotary pulley 82a has a power supply wire 86a. It includes a spiral spring 82b that applies an urging force for winding the wire, and a cover 82d that constitutes the outer frame of the wire winder 82 together with the fixing plate 82c.

Then, the power supply wire 86 is attached to the rotary pulley 82a at the eighth position.
As shown in FIG. 6A, a groove 82e for winding is formed in a spiral shape with a diverging end, and the wound feeding wire 86 is connected to the lead wire 80 at the position shown in A of FIG. .

FIG. 7 shows an enlarged view of this connection point. As shown in FIG. 7, the lead wire side brush 82f provided on the fixed plate 82c side and the back surface of the rotary pulley 82a are provided at this connection point. It is configured so as to make sliding contact with the substrate electrode 82g on the power supply wire side provided on the side.

As a result, even when the rotary pulley 82a rotates, power is supplied from the lead wire 80 to the power supply wire 86 due to the sliding contact between the brush 82f and the substrate electrode 82g.

In addition, in this embodiment, as described above,
A groove 82e is formed so as to wind up 86 in a spiral shape, and the feeding wire 86 is formed on the outermost side of the spiral groove 82e.
The ends of are fixed. Therefore, when the feeding wire 86 is pulled out, the effective diameter of the pulley 82a increases in the order of r ′, r ″, ... As shown in FIGS. 8 (a) to 8 (c). Even if the urging force of 82b increases, the tension of the power feeding wire 86 can be made substantially constant, and a rapid increase in wire tension can be prevented.

As described above, according to this embodiment, when the motor 60 moves downward together with the window glass 30,
The length of the wire 86 depends on the opening 84 of the wire winder 82 and the connector.
The power supply wire 86 is pulled out from the opening 84 against the biasing force of the winder 82 so as to have a necessary length corresponding to the distance L with the 68.

Further, when the motor 60 moves upward together with the window glass 30, the power supply wire 86 is wound by the wire winder 82 so as to have a required length according to the change in the distance L between the opening 84 and the connector 68. .

In this way, according to the present invention, the electric power can be supplied to the motor 60 by always making the length of the power feeding wire 86 the optimum length without slack.

In addition, in the present embodiment, a plurality of guides 90 for guiding the power supply wire 86 along the extraction path of the power supply wire 86.
Are provided on the bracket 41.

The guide 90 is formed, for example, as shown in FIG. 4, so as not to obstruct the movement of the connector 66 attached to the support arm 69.

Next, the operation of the power window will be described.

The drive principle of this power window is that the output of the motor 60 is decelerated by the gear in the gear housing 62, and the rotation axis is in the direction orthogonal to the output shaft of the motor 60, as in the conventional rack-pinion system. By transmitting to the pinion gear 50 having.

When this driving force is transmitted, the pinion gear 50 rotates while meshing with the rack 40.
Since 40 is fixed to the door inner plate 32 via the bracket 41, the pinion gear 50 rotates so that the rack 40
Will be moved along.

The pinion gear 50 includes a motor 60 and a support member 70.
And since it is supported integrally with the window glass 30 that is the member to be opened and closed, these members move integrally with the pinion gear 50, and by the forward / reverse drive of the motor 60,
It is possible to open and close the window glass 30.

At this time, power is supplied to the motor 60 that moves together with the window glass 30, which is the member to be opened / closed, via the power supply wire 86 wound around the wire winder 82 with a constant biasing force.

That is, when the motor 60 moves downward together with the window glass 30, the power supply wire 86 is required in a state in which a constant tension is applied from the opening 84 thereof against the winding biasing force of the wire winder 82. Is pulled out for a certain length.
Further, when the motor 60 moves upward together with the window glass 30, the power supply wire 86 is wound by the wire winder 82 so that the pull-out length becomes the minimum necessary length.

In this way, according to the present embodiment, the power feeding wire 86 for supplying power to the motor 60 is wound by the wire winder 82 so that the vertical movement of the motor 60 always causes an optimum length without slack, and A constant tension is always applied to the feeding wire 86 by the winding attachment force of the wire winder 82.

Therefore, the power supply wire 86 does not generate unpleasant mechanical noise by coming into contact with the inner wall of the door or other members, and the contact between the power supply wire 86 and the members damages them to cause a functional failure. There is nothing to do.

Especially when the vehicle runs on a rough road, the power supply wire 86
Oscillates in the thickness direction of the door and is apt to generate mechanical noise, etc., but according to the present invention, there is no slack in the feeding wire and the feeding wire 86 is always wound with a constant tension. Even when the vehicle is traveling on such a bad road, the power supply wire 86 does not come into contact with the inner wall of the door or the like to generate mechanical noise and the like, which is extremely suitable as a power supply device for a vehicle.

Further, in this embodiment, the guide 90 provided along the wire drawing path can more reliably prevent the vibration of the power feeding wire 86 in the door thickness direction, and as shown in FIG. Even if the glass center line movement locus P is curved, the power supply wire 86 can be pulled out along the curved movement locus P, and the book can be used without problems even for thin curved door frames that have become widespread in recent years. The device can be applied.

Further, in this embodiment, the wire winder 82 is installed in the rack 42.
Since it is provided adjacent to the upper end of the
The winding mounting force of No. does not load the motor 60. That is, the wire winder 82 always applies the winding attachment force to the power supply wire 86 in the upward direction. Therefore, when the motor 60 moves upward, this winding mounting force is applied to the motor 60 as an upward pulling force, so that the motor can be efficiently operated.

Although one embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made.

For example, as shown in FIG. 7, the wire winder 82 is provided at an intermediate position between the upper end of the bracket 41 and the end of the door frame, and a plurality of wire guides 92 are provided along a predetermined drawing curve. May be provided. Even in this case, the feeding wire 86 can be pulled out from the wire winder 82 by the required length without slack.

Further, as shown in FIG. 10, a wire winder 82 is provided adjacent to the middle portion of the rack 40, and the feeding wire 86 wound around the wire winder 82 is provided with an opening 84 and a pair of guides 94. The lead wire 67 may be formed so as to be connected to the connector 68 of the lead wire 67 via the wires 94, 94.

By doing this, compared to the power supply device shown in FIG.
The length of the feeding wire 86 drawn from the wire winder 82 is approximately 1 /
It can be 2. In this case, the support arm 69 is preferably formed so as to rotatably support the connector 68.

Further, in each of the above embodiments, the case where the wire winder 82 is provided on the fixed portion side of the door inner plate 32 or the like has been described as an example, but the present invention is not limited to this, and as necessary, FIG. It is also possible to provide the wire winder 82 on the moving part side of the motor 62 or the like as shown in FIG. In this case, the wire winder 82,
It may be attached and fixed to the gear housing 62, for example, using a screw 82h or the like.

Further, in the above-mentioned embodiment, the case where the present invention is applied to the power window has been described as an example, but the present invention is not limited to this and can be applied to a device for opening and closing various opened and closed members. For example, when an automobile is taken as an example, it can be applied as a power supply device applied to open / close driving of a sunroof which has been popular in recent years.

[Advantages of the Invention] As described above, according to the present invention, in a self-propelled opening / closing device in which a drive source moves together with a member to be opened / closed, a power supply wire for supplying power to the moving drive source is moved. It is possible to make the optimum length with no slack by following, and as a result, the power supply wire hits the surrounding mechanism etc., gets caught and causes unpleasant mechanical noise, and the functional failure due to disconnection etc. A power supply device that does not generate can be provided.

Further, since the tension applied to the power supply wire does not change abruptly, it is less likely that the power supply wire will break or the connector will come off.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall explanatory view of a power window to which the present invention is applied, FIG. 2 is an enlarged explanatory view of a rack and pinion portion shown in FIG. 1, and FIG. FIG. 4 is a schematic explanatory view showing a movement locus, FIG. 4 is a plan explanatory view of the power window mechanism shown in FIG. 1, and FIG. 5 is a partially cutaway front explanatory view of the wire winder used in the present embodiment. 5 is a partially cutaway side view of the wire winder shown in FIG. 5, FIG. 7 is an enlarged view of the wire connection point shown by arrow A in FIG. 6, and FIG. 8 is a wire of a rotary pulley. FIG. 9 is an explanatory view of a winding state, FIG. 9 is an overall explanatory view of a second preferred embodiment of a power window to which the present invention is applied, and FIG. 10 is an essential part explanatory view of a third preferred embodiment of the present invention, FIG. 11 is an explanatory view showing a preferred example in which the wire winder is provided on the moving part side, Is a schematic illustration of a power window of a conventional rack and pinion type. 30 …… Window glass 40 …… Rack 50 …… Pinion gear 60 …… Motor 82 …… Wire winder 86 …… Feed wire 90 …… Guide

Claims (1)

[Scope of utility model registration request] 1. A self-propelled opening / closing device in which a drive source for opening / closing a member to be opened / closed moves together with the member to be opened / closed; And a wire winding means for feeding and winding the power feeding wire so that the power feeding wire has an optimum length in accordance with the movement of the opened / closed member, and the wire winding means The take-up means has a spiral wire winding groove that is widened toward the end and has a small diameter along the wire winding groove, the feeding wire having an end fixed to a spiral large diameter position in the wire winding groove. Self-propelled type, comprising: a winding rotating body that is wound in a direction of rotation and wound up; and a biasing unit that applies a rotation biasing force in the winding direction of the power feeding wire to the winding rotating body. Switchgear supply Apparatus.