JPH0636217Y2 - Power supply device for self-propelled switchgear - Google Patents

Description

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

[Prior Art] As a conventional example of this type of self-propelled switchgear, a power window regulator which has been widely used in passenger cars and the like in recent years will be described as an example.

This type of self-propelled per-window regulator replaces the conventional X-arm system or wire drive system in which the drive source is fixed to the door side. By moving the drive motor together with the window glass, the number of parts is greatly increased. Reduced to
It is excellent in that it can effectively utilize the inside of the door space.

Proposals of this type of self-propelled power window regulator are found in Japanese Utility Model Laid-Open No. 60-68284 and Japanese Patent Laid-Open No. 61-286485. Here, the configuration of Japanese Utility Model Laid-Open No. 60-68284 is taken as an example. Explain.

The power window disclosed in the publication is, as shown in FIG. 13, 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, and The motor 14 includes a pinion gear 18 that is rotatably driven by a motor 14 via a worm gear 16, and a rack 20 that is vertically fixed to an in-panel of a door and meshes with the pinion gear 18.

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-in panel 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-described self-propelled power window regulator, the motor 14 which is a drive source for opening and closing drive is used.
However, since it moves together with the window glass 10 that is the member to be opened and closed, the lead wire for supplying power to the motor 14 must also be configured so as to be able to move freely inside the door together with the motor 10.

Here, since various other mechanical members exist in the door in addition to the mechanism for the power window, if the flexible lead wire moves without any restriction, the functional obstacles of the various mechanisms will occur. This may occur, and the power window may not function due to breakage of the lead wire.

However, conventionally, there has not been provided a power supply device such as this type of self-propelled power window that can supply power to a movable drive source without any trouble.

Therefore, an object of the present invention is to solve the above-mentioned conventional problems, to smoothly perform the movement of the lead wire in a narrow space such as inside the door without hindering the opening / closing drive of the opened / closed member. An object of the present invention is to provide a self-propelled switchgear power supply device.

[Means for Solving the Problems] In the present invention, in 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, one end side is connected to the drive source moving. A lead wire whose other end is fixed and whose middle part is wound spirally to be expandable and contractible; and one end of the spiral part of the lead wire is maintained at a predetermined diameter, and together with the drive source. A lead wire moving member that moves the lead wire tip and a movement guide member that guides the movement of the spiral lead wire are provided.

[Operation] In the present invention, the lead wire for supplying power to the drive source is formed in a spiral shape so that the lead wire can be expanded and contracted, and even if the lead wire is expanded and contracted repeatedly, the initial spiral state is always maintained. It can be restored, and the movement trajectory does not change each time, and the surrounding mechanism is not disturbed.

Moreover, since the spiral pitch is set to the minimum when the lead wire is contracted, the storage space for the lead wire can be minimized, and particularly, it can be effectively performed even when the storage space is narrow such as a power window. it can.

Further, since the lead wire is moved together with the drive source while maintaining the diameter on the tip side of the lead wire, the lead wire can be fixed without clinging to the moving member for guiding the movement of the lead wire due to the diameter contraction. It is possible to move smoothly.

That is, when the movement guide member is composed of a guide shaft and the guide shaft is inserted into the spiral portion of the lead wire, the guide wire is moved along the guide shaft while maintaining the diameter of the tip end side of the lead wire. As a result, the problem that the lead wire tightens the guide shaft and hinders the extension movement can be reliably solved. Further, even when the movement guide member is a cylindrical member having a diameter larger than the spiral bore, smooth movement can be ensured within the cylindrical member.

Further, by guiding the lead wire by the movement guide member in this way, it is possible to reliably prevent the adverse effect that the lead wire comes into contact with other mechanical members even when the lead wire is extended or contracted.

Incidentally, particularly when the movement guide member is used as a guide shaft,
As a measure for surely preventing the spiral lead wire from being tightly wound around the guide shaft, the lead wire is configured such that the spiral portions are connected by a coupling member at predetermined intervals, or By adopting a configuration in which the ring-shaped member for maintaining the diameter is supported by the lead wire at predetermined intervals, it is possible to reliably prevent the adverse effect of tightening the guide shaft at the intermediate portion of the lead wire.

[Examples] Hereinafter, the present invention will be described in detail with reference to the drawings.

First, an embodiment of a self-propelled switchgear to which the power supply device of the present invention is applied will be described.

The power window as a self-propelled switchgear is shown in Fig. 1,
As shown in FIG. 2, the rack 40 fixedly supported along the moving direction of the window glass 30, which is the member to be opened and closed, the pinion gear 50 meshing with the rack 40, and the forward and reverse rotation drive of the pinion gear 50. And a supporting member 70 for supporting and fixing the motor 60 to one end of the window glass 30.

The rack 40 includes teeth 40a in the width direction of the window glass 30 that is orthogonal to the moving direction of the window glass 30, and is fixed to a rack mounting bracket (hereinafter, referred to as a bracket) 41. The rack 40 and the bracket 41 are formed in a curved shape with a curvature substantially the same as the curvature of the curved window glass 30. Then, the mounting pieces 41 formed in a U shape at the upper and lower ends of the bracket 41.
The bracket 41 is fixed by fastening a and 41a to the door inner plate 32 with bolts 33 and 33 (see FIG. 3).

Further, the bracket 41 has key-shaped engaged portions 42 and 43 on both ends in the width direction, and can be engaged with first and second engaging protrusions 65 and 66 which will be described later. ing.

The motor 60 is composed of a motor body 61 and a gear housing 62 fixed to the motor body 61.

The output shaft of the motor main body 61 is provided so as to coincide with the P line shown in FIG. 2, and the P line also coincides with the center of gravity line of the motor main body 61. Further, as shown in FIG. 3, the P line is located substantially on the same plane as the moving surface of the window glass 30 and is located below the window glass 30.

The gear housing 62 is for decelerating and transmitting the output of the motor body 61 to the pinion gear 50 having a rotation axis in a direction orthogonal to the P line.

The gear housing 62 will be described in more detail. In the gear housing 62, the motor body 61 is supported by the support member.
It is provided with a member for fixing to 70 and a member for positioning the bracket 41.

That is, as shown in FIG. 4, an attachment piece for attaching to the support member 70 is provided on the upper side of the gear housing 62.
63, 64 are formed, and a first engaging projection 65 for locking one engaged portion 42 of the bracket 41 is formed (see also FIG. 1). Further, a second engaging projection 66 for engaging the other engaged portion 43 of the bracket 41 is formed at one end extending along the line corresponding to the P line. .

Further, a clamper member 67 for clamping one end side 80b of the lead wire 80 for supplying power to the motor main body 61 is provided at the lower end of the gear housing 62, and one end side 80b of the lead wire 80 to be described later is provided as described above. The moving member 100 that moves together with the motor body 61 is fixed to the gear housing 62. Details of the moving member 100 will be described later.

In FIG. 4, the Q line in the figure indicates the center line of the pinion gear 50.

Next, the support member 70 will be described with reference to FIGS. 5 (A) and 5 (B).

The support member 70 includes a holding portion 71 for holding one end side of the window glass 30 with, for example, an adhesive, and the motor.
Fixing parts 72, 7 for fixing 60 via the gear housing 62
3, a vertical surface 74 in which one edge portion of the one fixing portion 73 is bent at a right angle, and one end of the vertical surface 74 is further bent at a right angle, and is formed parallel to the window glass 30 during assembly. It is configured with a face 75.

By attaching the motor 60 to the window glass 30 by the support member 70, as shown in FIG. 1, when the mechanism is viewed from the moving end side of the window glass 30, the output shaft of the motor 60 The coincident P line coincides with the center line of the window glass 30 in the thickness direction.

Further, at the time of assembling the support member 70, as shown in FIG. 1, one of the bracket 41 is engaged between the vertical surface 74 and the first engaging protrusion 65 formed on the gear housing 62. The mating portion 42 is inserted and arranged, and the parallel surface 75 is assembled so as to be arranged so as to cover the outside of the engaged portion 42.

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

In this power feeding device, one end 80a connected to the battery side is fixed inside the door, the other end 80b is connected to the motor main body 61, and a lead wire 80 having an intermediate portion of a spiral shape 81 is formed.
And a guide shaft 90 that is an example of a movement guide member that is inserted through the portion of the lead wire 80 in the spiral form 81 and is formed along the moving direction of the motor 60, and the spiral form of the lead wire 80. The upper end of 81 is composed of a moving member 100 that moves with the motor 60 while maintaining the spiral diameter.

The relationship between the lead wire 80 and the moving member 100 will be described with reference to FIG. 1 and FIG. 2. As shown in FIG. A curl portion 101 having substantially the same diameter as the diameter of the spiral is provided, and the other end is fixed to the gear housing 62.

Then, the lead wire 80 taken out from the motor body 61 is first clamped by the clamp member 67 of the gear housing 62, and then clamped by the clamper 102 at an appropriate position along the moving member 100, One end side 80b of the lead wire 80 is supported by the moving member 100.

The guide shaft 90 is composed of a rod-shaped member having a diameter of d, the upper end of which is fixed to the rack bracket 41, and the other end of which is curved into a curved shape 91 and fixed to the door. Note that 92 is a stopper for preventing the lead wire 80 from coming off.

Next, the diameter d of the guide shaft 90 and the lead wire 80
The relationship between the spiral form 81 and the inner diameter D will be described. As a condition for preventing the spiral form 81 from being wound around the guide shaft 80, the movement stroke length of the motor body 61 is
If L and the number of turns of the spiral are T, it is sufficient if (D−d) × π × T> L.

Further, based on the diameter D of the spiral form 81 of the lead wire 80 obtained by the above formula, the total length 1 of the lead wire 80 required to form the spiral form 81 is obtained by T × πD = 1.

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

The driving principle of this power window is that the output of the motor body 61 is decelerated by the gear in the gear housing 62 in the same direction as the conventional rack-pinion system proposal, and in the direction orthogonal to the output shaft of the motor body 61. By transmitting to a pinion gear 50 having a rotating shaft.

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 and the mounting piece 41a, the pinion gear 50 moves along the rack 40 by the rotation of the pinion gear 50.

Since the pinion gear 50 is integrally supported by the motor 60, the supporting member 70, and the window glass 30, which is the member to be opened / closed, these members move integrally with the pinion gear 50, and the positive force of the motor 60 increases. The reverse rotation drive allows the window glass 30 to be opened and closed.

As described above, in the self-propelled power window, the motor body 61 moves together with the window glass 30 that is the member to be opened and closed.

Therefore, the power supply device for supplying power to the moving motor body 61 operates as follows to supply power to the motor body 61.

Connection end side 80b of the lead wire 80 to the motor body 61
Are supported by a moving member 100 fixed to a gear housing 62 that moves together with the motor body 61. Therefore, the moving member 100 moves in association with the movement of the motor main body 61, and as a result, the one end side 80 b of the lead wire 80.
I am trying to move.

On the other hand, the middle portion of the lead wire 80 has a spiral shape 81, and when the motor body 61 is at the lowest end,
As shown in the figure, the spiral pitch is accommodated in a contracted state so as to be the minimum, and when the moving member 100 is raised,
By extending each spiral portion along the longitudinal direction of the lead wire 80, it is possible to follow the movement of the motor body 61. Regarding the contraction of the lead wire 80, the elastic force of the core wire in this wire (in this embodiment, a core wire having a thickness of about 1.25 mm is used) acts, so that the spiral form 81 can be easily restored. If the elastic force of the lead wire alone is not sufficient, another core wire for increasing the elastic force can be arranged in the wire.

In this way, by forming the lead wire 80 in a spiral shape, the lead wire 80 is configured to be expandable and contractible, and moreover, it can be accommodated without bending during contraction, and the accommodation space at that time can be minimized. .

Further, in the spiral form 81, the guide shaft 90, which is a movement guide member, is inserted, and the spiral form 81 moves up and down while being guided by the guide shaft 90. Therefore, the movement trajectory of the lead wire 80 is stabilized, and it is possible to surely prevent the movement of the lead wire 80 by being caught by the power window mechanism or other mechanism.

Here, in the present embodiment, the curl portion 101 is provided on the tip side of the moving member 100, and the curl portion 101 is moved while maintaining the diameter of the spiral form 81 at the time of contraction. Lead wire 80
When extending, the spiral part at the upper end of the spiral form 81 on which an actuating force acts is expanded, and the diameter of this part becomes small, which may cause a problem of tightening the guide shaft 90. In the example, since the diameter of the upper end of the spiral form 81 does not change, and in particular, the guide shaft 90 is not wound by the tip end side, the guide shaft 90 is wound by the lead wire 80 and the lead wire 80 is moved. It is possible to surely prevent the problem of inhibiting. In particular, since rain enters the inside of the door where the power window mechanism is arranged, even if the sliding resistance of the guide shaft 90 is initially good, the resistance increases due to the adhesion of dust and the like.
Since slippage of the lead wire 80 may worsen, it is possible to reliably prevent the lead wire 80 from being tightened by moving the lead wire 80 while maintaining the diameter of the upper end by the curl portion 101 as in the present embodiment. it can.

Further, in this embodiment, since the lower end of the guide shaft 90 is curved and the lead wire 80 at the time of contraction is accommodated in this portion, there is no space below the lowermost moving position of the motor body 61. Even in this case, the required length of the lead wire 80 can be secured.

In the present embodiment, when viewed from the moving end side of the window glass 30, the output shaft of the motor body 61 (matching the center line P) is configured to match the center line of the window glass 30 in the thickness direction. ing. Therefore, from the center line (that is, the center line P) of the window glass 30, which is the member to be opened / closed, the center line of the rack and pinion that generates a driving force for vertically driving the window glass 30 (FIGS. 2 and 3). R line)
The distance L1 to is significantly shorter than that of the conventional rack-pinion system.

As a result, the rotational moment acting on the window glass 30 acting in proportion to the distance is significantly smaller than in the conventional case, and the frictional force with the window frame that occurs during opening and closing can be reduced.
There is also an effect that the motor 60 having a smaller torque than that of the conventional one can be arranged to ensure efficient and reliable opening / closing operation.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

In the above-mentioned embodiment, the spiral form 81 is configured so as to prevent winding at the upper end.
Measures can also be taken to prevent winding tightening in the middle at 81.

6 and 7 show a lead wire 80 having the above countermeasures taken. FIG. 6 shows the spiral portion of the lead wire 80 connected at a predetermined interval by a connecting member 110 such as a string. There is.

In this way, by connecting the spiral portions at predetermined intervals, the operating force for moving the lead wire 80 is transmitted not only to the upper end of the lead wire 80 but also to the intermediate portion thereof, It is possible to reliably prevent the problem that the guide shaft 90 is tightened in the spiral portion.

In FIG. 7, a ring-shaped member 115 such as a washer is arranged at a predetermined interval in the spiral-shaped portion, and the ring-shaped member 115 is intended to maintain the spiral diameter of the portion.
In this case, since the diameter of the spiral portion having the ring-shaped member 115 does not become smaller than this, it is possible to prevent the guide shaft 90 from being closed.

In the configurations of FIGS. 6 and 7, by devising the configuration on the side of the lead wire 80, the tightening around the guide shaft 90 is prevented, but in addition, the configuration of the guide shaft 90 is improved. It may be one that does. As the guide shaft 90, the less friction with the spiral portion of the lead wire 80, the better. Therefore, the guide shaft 90 can be made of Teflon or the like, or can be plated with chrome or the like.

Further, as shown in FIG. 8, the frictional force may be reduced by the structure of a guide shaft 90 or the like having a substantially semicircular cross section, which is arcuate only on the side in contact with the spiral portion.

The movement guide member 90 is not limited to the guide shaft, and for example, as shown in FIG. 9, a plurality of thin wires are stretched around the motor body 61 along the movement direction. A wire may be inserted through the spiral portion.

Further, the moving member 100 and the movement guide member 90 can be integrally formed.

For example, the movement guide member 90 is formed in a spiral shape like a coil spring, and the spiral shape 81 of the lead wire 80 is supported by the spiral portion, whereby the lead wire 80
The moving guide member 100 and the moving guide member 100 may both be configured to expand and contract by a spiral action, while the upper end of the spiral moving guide member 90 may be coupled to the moving member 100 to perform the expanding and contracting operation. Alternatively, the movement guide member 90 is a retractable guide shaft, and the upper end of the guide shaft is the movement member 100.
It is also possible to configure the movement guide member to expand and contract in accordance with expansion and contraction of the lead wire 80 by being combined with.

Further, the movement guide member is not limited to one that is inserted into the spiral portion, and may be formed in a cylindrical shape that covers the spiral portion as shown in FIGS. 10 (a) and 10 (b), for example. You can also In this case, there is a problem in that a space for disposing the guide shaft is required as compared with the case of using the guide shaft, and it also causes resonance inside the door.

Here, in recent years, there is a need to install a self-propelled power window of this kind even in a small vehicle, and in this case, a relatively small current is required, so that the core wire of the lead wire 80 can be made thin.

In this case, as shown in FIG. 11, it is possible to simply fold the lead wires 80 at predetermined intervals and stack them, and then extend the lead wires 80 to follow the movement of the motor body 61.

According to this structure, the moving member 100 and the movement guide member 90 are not required, which is advantageous in that the structure is simple.

However, as a measure against disconnection when repeatedly expanding and contracting, the 11th
As shown in FIG. 12 which is an enlarged view of the portion A in the figure, it is necessary to provide a reinforcing material 85 such as rubber in the folded portion, and the lead wire 80 itself does not have any movement restriction. The present invention is superior in that it is not stable, and problems such as being caught in the surrounding mechanism remain.

It should be noted that the present invention is not necessarily applied to a power window, but can be applied to devices in various fields for opening / closing driving a member to be opened / closed.

For example, if an automobile is taken as an example, it can also be adopted as a power supply device applied to open / close driving of a sunroof which has been popular in recent years.

[Effect of the Invention] As described above, according to the present invention, in the self-propelled switchgear in which the drive source moves together with the opened / closed member, the lead wire for supplying power to the moving drive source is used to move the drive source. It is possible to provide a power supply device that can be smoothly expanded and contracted by following and can reliably prevent a harmful effect such as disconnection due to being caught by a surrounding mechanism.

[Brief description of drawings]

FIG. 1 is a front view of a mechanism of a power window to which the present invention is applied, FIG. 2 is a plan view of the mechanism, FIG. 3 is a schematic explanatory view showing a movement path inside a door, and FIG. , A front view of the gear housing, FIGS. 5 (A) and 5 (B) are front views of the support member,
FIG. 8 is a side view, FIG. 6 and FIG. 7 are schematic explanatory views each showing a modified example in which a guide shaft of a lead wire is provided with a measure against winding, and FIG. 8 is a sectional view showing an example of a sectional shape of the guide shaft. 9 and 10 are schematic explanatory views showing a modified example of the movement guide member, FIG. 11 is a schematic explanatory view of a power feeding device as a comparative example with respect to the present invention, and FIG. 12 is a lead wire of FIG. FIG. 13 is an enlarged view of a folded portion of FIG. 13, and FIG. 13 is a schematic perspective view of a conventional rack-pinion type power window. 30 ... Openable member, 40 ... Rack, 50 ... Pinion gear, 61 ... Motor main body, 62 ... Gear housing, 80 ... Lead wire, 81 ... Spiral form, 90 ... Movement guide member, 100 ... Moving member, 110 ... Coupling Member, 115 ... Ring-shaped member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroyuki Harada 390 Umeda, Kosai City, Shizuoka Prefecture, Asmo Stock Company (72) Inventor Katsuhiko Torii 390 Umeda, Kosai City, Shizuoka Prefecture, Asmo Stock Company (56) References 50-105240 (JP, U)

Claims (6)

[Scope of utility model registration request] 1. In 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, one end side is connected to the drive source moving and the other end side is fixed, and an intermediate portion therebetween. A lead wire formed by spirally winding a portion of the lead wire, and a lead wire for maintaining one end side of the spiral portion of the lead wire at a predetermined diameter and moving the tip of the lead wire together with the driving source. A power supply device for a self-propelled switchgear, comprising a moving member and a moving guide member for guiding the movement of the spiral lead wire. 2. The utility model registration claim, wherein the movement guide member is a guide shaft formed along a movement direction of the drive source, and the guide shaft is inserted into the spiral portion of the lead wire. A power supply device for a self-propelled switchgear according to claim 1. 3. The self-propelled device according to claim 2, wherein the guide shaft has a curved lower end, and the lead wire in the spiral portion is accommodated in the curved portion in a contracted state. Power supply device for switchgear. 4. The power supply device for a self-propelled switchgear according to claim 1, wherein the lead wire has spiral parts connected by a coupling member at predetermined intervals. 5. The utility model registration claim 1 or 2 according to claim 1, wherein the lead wire is constituted by supporting ring-shaped members that maintain a spiral diameter at predetermined intervals. Power supply device for traveling switchgear. 6. The power supply for a self-propelled switchgear according to claim 1 or 2, wherein the guide shaft has a substantially semicircular cross-section having a circular arc side on a side in contact with the spiral portion. apparatus.