Joints and connections – Including ancillary means blocking disconnection of joint – Blocker for assembled joint retainer
Reexamination Certificate
1999-12-22
2002-01-22
Browne, Lynne H. (Department: 3629)
Joints and connections
Including ancillary means blocking disconnection of joint
Blocker for assembled joint retainer
C403S299000, C074S502400
Reexamination Certificate
active
06340265
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a cable end fastening device in which a fastening structure is improved to quickly secure a vehicular remote control cable to a bracket.
2. Description of Prior Art
This type of cable end fastening device has been introduced as shown in FIG.
13
. This device has a columnar socket
100
in which an inner cable
100
a
passes through a sleeve
100
b
. The socket
100
has a left end which has flange portions
101
,
102
. The flange portions
101
,
102
are brought into a notched opening
104
in a fashion to sandwich an outer peripheral edge
104
a
of the notched opening
104
when fastening the socket
100
to a bracket plate
103
. With the use of a hammer (not shown), a wavy washer
105
is driven into between the flange portion
101
and the outer peripheral edge
104
a
of the notched opening
104
to elastically tighten the socket
100
against the bracket plate
103
.
A fastening device similar to the device in
FIG. 13
has been introduced by European laid-open Patent Application No. 0703395 (filed on Aug. 24, 1995 and laid open on Mar. 27, 1996). The fastening device is employed to fasten an annular member so that a columnar member is mounted on an inner wall of the annular member with an assist of a guide member coupled with a movable member and an elastic member.
In the fastening device of
FIG. 13
, the washer
105
is always subjected to a significant amount of reactional force from the flange portion
101
and the outer peripheral edge
104
a
of the notched opening
104
because the washer
105
is placed therebetween. When subjected to creep phenomenon in high temperature or stress relaxation due to an extended period of service time, it is predictable that the washer
105
reduces its urging force (elastic force) against the flange portion
101
and the outer peripheral edge
104
a
of the notched opening
104
. Once the washer
105
loses the urging force even partly, the socket
100
likely rattles to induce a constant vibration so that the socket
100
may fall off from the bracket plate
103
without maintaining a normal cable route.
The same problem resides in the fastening device disclosed by the European laid-open Patent Application No. 0703395.
Therefore, the present invention has made with the above drawbacks in mind, it is a main object of the invention to provide a cable end fastening device which is capable of quickly fastening a socket member to a bracket with an easy operation, and maintaining a solidly fastened condition for an extended period of time without falling off from the bracket even when subjected to the creep phenomenon and relaxation influence.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a cable end fastening device in which an urging member urges a nut member to always tighten the nut member on a male thread portion when fastening a socket member to a bracket. This induces a nut tightening torque to eliminate a Taxation to which the nut member is subjected, and thereby maintaining a solidly fastened condition for an extended period of time without falling off from the bracket even when subjected to the creep phenomenon and the stress relaxation influence.
According to another aspect of the present invention, a torsion coil spring is used as the urging member, one end of which removably engages with a notch portion provided with the nut member.
This makes it possible to quickly fasten the socket member to the bracket substantially with a single touch operation in which the torsion coil spring is temporarily deformed manually without using specified tools.
In particular, a raised portion is provided with the socket member, and the raised portion and one end of the urging member (torsion coil spring) are temporarily pinched before the nut member is fully tightened against the bracket. Upon fastening the socket member to the bracket, all the procedures needed is only pinching and then releasing the raised portion and the urging member, and thereby ensuring a quicker workability with an easier operation.
In addition, with the prongs engaged against the recesses when fastening the socket member to the bracket, it is possible to prevent the socket member from falling off from the bracket even when subjected to the constant vibration.
With a middle portion of the urging member temporarily engaged against a risen section of the socket member, the middle portion is disengaged from the risen section when the middle portion encounters a specified area of the bracket to release the urging force toward the nut member upon fastening the socket member to the bracket.
In this instance, the socket member is fastened to the bracket with a single touch operation in which the socket member is brought into a notched opening of the bracket. This achieves a still more efficient workability with an easier operation upon fastening the socket member to the bracket.
Such is the structure that the middle portion of the urging member is disengaged from the risen section when the middle portion encounters the specified area of the bracket at the time of fastening the socket member to the bracket. This accompanies a reactional force and a release noise which induce a detention-and-break-away feeling so that an end of the fastening procedures is readily recognized.
REFERENCES:
patent: 4050327 (1977-09-01), Thomas et al.
patent: 4339213 (1982-07-01), Gilmore
patent: 5347882 (1994-09-01), Klotz
patent: 6105458 (2000-08-01), Casas Gomila et al.
patent: 0703395 (1996-03-01), None
patent: 2723989 (1996-03-01), None
patent: 320 495 (1929-10-01), None
patent: 2 143 610 (1985-02-01), None
patent: 2 230 323 (1990-10-01), None
Awata Kazutaka
Suzuki Ken'ichi
Tsuge Toyokazu
Browne Lynne H.
Cottingham John R.
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