Railway wheels and axles – Axle – Mine car
Reexamination Certificate
2003-02-25
2004-09-21
Dayoan, D. Glenn (Department: 3612)
Railway wheels and axles
Axle
Mine car
C296S208000, C049S360000, C049S502000
Reexamination Certificate
active
06793259
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electric wire excess length absorbing device to absorb a slack of an electric wire by winding the electric wire on a reel and a sliding door-use power feeding apparatus, of a motor vehicle, using the electric wire excess length absorbing device.
2. Description of the Related Art
An electric wire excess length absorbing device shown in
FIG. 42
(Japanese Patent Application Laid-open No. 2000-264136) has been suggested as one of the electric wire excess length absorbing device which releases or retracts an electric wire according to an opening-and-closing of a sliding door of a one-box car or the like.
This electric wire excess length absorbing device
71
has a pair of link arms
72
, a slider
73
connected to an end of one of the link arms
72
, and a guide rail
74
to which an end of the other of the link arms
72
is connected and with which the slider
73
slidably engages.
The electric wire excess length absorbing device
71
is arranged on a sliding door
75
. The guide rail
74
is horizontally fixed to a door panel
76
made of metal. The pair of link arms
72
is openable-and-closable between the door panel
76
and a door trim (not shown) made of synthetic resin.
A wiring harness (electric wires)
77
is arranged along the pair of link arms
72
and fixed to the slider
73
. One end of the wiring harness
77
curves large from the slider
73
to a step portion
79
of a vehicle body
78
and is connected to a wiring harness
80
on a vehicle body side by means of a connector. The other end of the wiring harness
77
is arranged on the sliding door
75
from the end of the link arms
72
and connected to the auxiliaries such as electric appliances equipped on the sliding door.
The power feeding from the vehicle body side (the battery side) to the auxiliaries on the sliding door is done by this sliding door-use power feeding apparatus. That is, the power current or the signal current is supplied to the auxiliaries regardless of the opening-and-closing of the sliding door
75
. The auxiliaries include a powerwindow motor, a door lock unit, a switch unit or an automatic door opening-and-closing unit for example.
While the sliding door
75
is being closed by forwardly sliding it in the arrow G
1
direction, the pair of link arms
72
opens, and the slider
73
moves toward the rear of the guide rail
74
. On the contrary, while the sliding door
75
is being opened, the pair of link arms
72
closes, and the slider
73
moves toward the front of the guide rail
74
.
With respect to the above prior art's electric wire excess length absorbing device
71
, however, the long guide rail
74
and the pair of link arms
72
make the structure and the weight large. Therefore, the arrangement of parts inside the sliding door is limited in order to prevent the interference of the link arms
72
with the parts. The length of the guide rail
74
or the link arms
72
often has to be changed according to the type of a motor vehicle, which requires a lot of man-hours for the design and manufacturing, thereby increasing the cost.
SUMMARY OF THE INVENTION
In view of the foregoing, an object of the present invention is to provide an electric wire excess length absorbing device, which is simple and compact, has a versatility, and can smoothly securely absorb a slack of an electric wire, and a sliding door-use power feeding apparatus using the above electric wire excess length absorbing device.
In order to achieve the above object, as a first aspect of the present invention, an electric wire excess length absorbing device, comprising: a casing having an electric wire leading-out portion; a reel pivotably provided in the casing for winding an electric wire; and an energizing member to energize the reel in a direction of winding the electric wire, wherein the casing is pivotably supported by an installing portion.
As a second aspect of the present invention, based on the first aspect, a rotary shaft is provided on the casing, and a receiving portion for the rotary shaft is provided on the installing portion.
As a third aspect of the present invention, based on the first aspect, a rotation center of the reel and a rotation center of the casing are aligned.
As a fourth aspect of the present invention, based on the first aspect, a loosely winding portion to loosely winding a fixed-side electric wire of the electric wire is provided on the reel.
As a fifth aspect of the present invention, based on the first aspect, a contact terminal is provided on one of the reel and the casing, an annular circuit conductor for the contact terminal is provided the other of the reel and the casing, a moving-side electric wire is connected to one of the contact terminal and the circuit conductor, and a fixed-side electric wire is connected to the other of the contact terminal and the circuit conductor.
As a sixth aspect of the present invention, a sliding door-use power feeding apparatus is characterized in that the electric wire excess length absorbing device set forth in any one of claims
1
-
5
is pivotably arrange on one of the sliding door and the vehicle body, the electric wire or the moving-side electric wire is arranged on the other of the sliding door and the vehicle body, and the fixed-side electric wire is arranged on the one of the sliding door and the vehicle body.
As a seventh aspect of the present invention, based on the sixth aspect, the electric wire excess length absorbing device is laterally arranged, and the electric wire is led out of the electric wire leading-out portion substantially horizontally.
As an eighth aspect of the present invention, an electric wire excess length absorbing device comprises: a casing; a reel pivotably provided in the casing for winding an electric wire; and an energizing member to energize the reel in a direction of winding the electric wire, wherein the casing is provided with an opening portion, being long, enabling the electric wire to be swingably led out thereof.
As a ninth aspect of the present invention, based on the eighth aspect, the opening portion is formed long over a width of the casing long.
As a tenth aspect of the present invention, based on the eighth aspect, an electric wire guide wall, being curved, is formed along an edge of the opening portion.
As an eleventh aspect of the present invention, based on the eighth aspect, the casing is formed long between the reel and the opening portions.
As a twelfth aspect of the present invention, based on the eighth aspect, the opening portion faces a radial direction of the reel, and a reel rotation absorbing portion is positioned adjoining to the reel in an axial direction of the reel.
As a thirteenth aspect of the present invention, based on the twelfth aspect, a loosely winding portion, to loosely wind a fixed-side electric wire continuing from the electric wire, is provided as the reel rotation absorbing portion, and a portion to lead out the fixed-side electric wire is provided on the casing.
As a fourteenth aspect of the present invention, based on the twelfth aspect, a contact terminal is provided on one of the reel and the casing, an annular circuit conductor for the contact terminal is provided the other of the reel and the casing, a moving-side electric wire is connected to one of the contact terminal and the circuit conductor, and a fixed-side electric wire is connected to the other of the contact terminal and the circuit conductor, whereby the reel rotation absorbing portion is constituted.
As a fifteenth aspect of the present invention, a sliding door-use power feeding apparatus is characterized in that the electric wire excess length absorbing device set forth in any one of claims
8
-
14
is arrange on one of the sliding door and the vehicle body, the electric wire or the moving-side electric wire is arranged on the other of the sliding door and the vehicle body, and the fixed-side electric wire is arranged on the one of the sliding door and the vehicle body.
As a sixteenth aspect of the present
Sano Osamu
Suzuki Yasuhiro
Armstrong Kratz Quintos Hanson & Brooks, LLP
Blakenship Greg
Dayoan D. Glenn
Yazaki -Corporation
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