Article dispensing – Cellular magazine type – Rolled or folded web type magazine
Reexamination Certificate
1999-12-22
2001-09-04
Noland, Kenneth W. (Department: 3651)
Article dispensing
Cellular magazine type
Rolled or folded web type magazine
C242S608600
Reexamination Certificate
active
06283323
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an electronic component supply device that conveys a taping component having a carrier tape, which holds electronic components in holding cavities at a specified pitch, while a covering tape that covers the carrier tape is peeled away by a peeling member to allow the electronic components to be removed at a component removal location, and more particularly to an improvement for a winding unit on which the peeled covering tape is wound.
FIGS. 4 through 6
are used to describe a conventional electronic component supply device.
FIG. 6
shows a taping component
1
having a carrier tape
1
a
formed with holding cavities
1
b
at a specified pitch in which hold electronic components
2
, and a covering tape
1
c
that prevents the electronic components
2
, which can be removed from the surface of the carrier tape
1
a
, from coming out of the holding cavities
1
b.
FIG. 4A
shows the taping component
1
wound around a reel
3
and in such a state is fitted in the base portion of a component supply device B. From this state the taping component
1
is conveyed in the direction of arrow x along a conveying surface provided in a component supply guide
4
of the component supply device B while the electronic components
2
of the holding cavities
1
b
are positioned successively at a component removal opening
6
provided in a hold-down cover
5
placed on the front end of the conveying surface. At a point during the conveyance of the taping component
1
the covering tape
1
c
is peeled away from the carrier tape
1
a
via a peeling slot
7
provided in the hold-down cover
5
, and the peeled covering tape
1
c
is wound onto a receiving reel
10
. As a result, the covering tape
1
c
is peeled and the carrier tape
1
a
is conveyed with the holding cavities
1
b
exposed while the electronic components
2
are removed via the component removal opening
6
.
FIG. 4B
shows a take-up reel
10
having a receiving ratchet
11
, which is moved in only one direction by the reciprocating action of a feed lever
8
arranged at the rear of the hold-down cover
5
, and a removable receiving cap
12
That is set in the take-up ratchet
11
. This arrangement winds the covering tape
1
c
onto the receiving cap
12
.
FIG. 4B
shows a cylindrical support shaft
11
a
, which protrudes from the center of the receiving ratchet
11
, and a cylindrical installation member
1
2
a
. which protrudes from the center of the receiving cap
12
, that engages over the outer circumference of the cylindrical support shaft
11
a
. The engagement area between the cylindrical support shaft
11
a
and the cylindrical installation member
12
a
is provided with contact members
13
and
14
in two locations that prevent separation from the receiving cap
12
and that contact the receiving ratchet
11
in the direction of rotation.
The work of resetting the taping component
1
in the above arrangement when the components run out, or for another reason, is described hereafter. As shown in
FIG. 5B
, turning the receiving cap
12
, on which is wound the covering tape
1
c
, at a specified angle of rotation in the direction of rotation of the receiving ratchet
11
causes the contact member
14
to slide in the E direction and the contact members
13
and
14
to release their contact allowing the receiving cap
12
to be removed. As shown in
FIG. 5A
, when installing the receiving cap
12
, the receiving cap
12
is inserted into the receiving ratchet
11
and rotated in the direction opposite to the direction of rotation of the receiving ratchet
11
to cause the contact member
14
to slide in the F direction and the contact members
13
and
14
to make mutual contact. At this time the contact members
13
and
14
are arranged such that they both are respectively slightly elastically deformed in the H and G directions shown in FIG.
5
A.
In the above conventional arrangement, however, the contact surface that follows in the direction of rotation of the contact members
13
and
14
is arranged to be flat, which causes the entirety of the receiving cap
12
to be slightly tilted in relation to the receiving ratchet
11
by the tensile force of the covering tape
1
c
, which causes an even greater elastic deformation in the contact members
13
and
14
. This creates an even tighter contact between the contact members
13
and
14
, which causes a problem in that it makes detachment by hand difficult.
Further, since the amounts of elastic deformation of the contact members
13
and
14
are unequal, when the amount of elastic deformation is small or less than zero there is no holding force, which creates the problem of the receiving cap
12
coming loose and falling off the receiving ratchet
11
.
SUMMARY OF THE INVENTION
With The foregoing drawbacks of prior art in view, it is an object of the present invention to provide an electronic component supply device that can effect an increase in workability by making it simple to detach a receiving cap from a receiving ratchet while preventing the receiving cap from coming loose and falling off.
The electronic component supply device of the present invention comprises a Taping component in which electronic components are accommodated in holding cavities formed at a specified pitch on a carrier tape whose surface is covered by a removable covering tape, and which is conveyed along a conveying surface by the reciprocating action of a feed lever while the covering tape is peeled by a peeling member and the electronic components are removed from the holding cavities at a component removal location. A receiving reel that receiving the covering tape removed by the peeling member comprises a receiving ratchet, which is only rotated in one direction by the reciprocating action of a feed lever, and a receiving cap on which the covering tape is wound and which can be removed from the receiving ratchet. Contact members are provided that prevent the receiving cap from coming loose in an area of engagement of the above-mentioned receiving ratchet and that make contact in the direction of rotation and which have on their surfaces convex and concave shapes that make mutual contact along their direction of rotation. Providing convex and concave shapes on the contact surface along the contact member direction of rotation reduces the contact area when the contact members are caused to slide and the receiving cap is detached from the receiving ratchet, and reduces the amount of elastic deformation of the contact members when the entire receiving cap is slightly tilted and fixed in relation to the receiving ratchet by the tensile force of the covering tape, which allows simple removal and installation by hand. Further, because the amount of elastic deformation when the contact members are slid and detached does not become zero or less, and because the contact members can only be turned and detached when the applied force exceeds the force of friction of the mutually contacting convex and concave shapes, the receiving cap does not come loose from the receiving ratchet and fall off,
While novel features of the invention are set forth in the preceding, the invention, both as to organization and content, can be further understood and appreciated, along with other objects and features thereof, from the following detailed description and examples when taken in conjunction with the attached drawings.
REFERENCES:
patent: 5065894 (1991-11-01), Garland
patent: 5114089 (1992-05-01), Posso
patent: 5562384 (1996-10-01), Aluite et al.
patent: 3441445 (1985-05-01), None
patent: 0273511 (1988-07-01), None
Endo Tadashi
Kabeshita Akira
Kashiwazaki Takao
Kubota Shuichi
Okawa Koji
Jordan and Haqmburg LLP
Matsushita Electric - Industrial Co., Ltd.
Noland Kenneth W.
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