Information
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Patent Grant
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6620239
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Patent Number
6,620,239
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Date Filed
Wednesday, December 26, 200122 years ago
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Date Issued
Tuesday, September 16, 200320 years ago
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Inventors
-
Original Assignees
-
Examiners
Agents
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CPC
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US Classifications
Field of Search
US
- 118 76
- 118 257
- 156 577
- 156 579
- 242 5883
- 400 695
- 400 696
- 400 700
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International Classifications
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Abstract
A transmission device for a continuous tape comprises a casing, a tape release part, a relay part and a tape collect part. The casing extending a stationary release axle, a stationary relay axle and a stationary collect axle. The tape release part provides a release sleeve to rotationally fit with the release axle with a flange at a middle section thereof locating a correction tape wheel by way of engaging ribs on the periphery of the flange. The release part further provides a release gear with an axial release hole to be fixedly attached to the release sleeve. The relay part provides a big gear integrally joining a small gear with an axial relay hole to rotationally fit with the relay axle so as to be associated with the tape release part by way of the small gear meshing with the release gear. The tape collect part provides a collect gear integrally joining a big circular plate. A cylinder and a sleeve section extend from the circular plate with the sleeve section disposed in the cylinder and a through axial hole. The tape collect part rotationally fits with the collect axle with the collect gear meshing with the big gear of the relay part. When a correction tape wound on the correction wheel is released, the correction tape wheel turns together with the tape release part such that the relay part and the tape collect part can be driven with the tape release part and the tape collect part turning in the same direction.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a transmission device for a continuous tape and particularly to a transmission device, which is suitable for continuous tapes with different lengths.
2. Description of Related Art
A tape article or a continuous tape article such as a correction tape, a double-faced glue tape, fluorescent tape, or the like is often used in our daily life and usually the tape is received in a device such that the tape can be released on one hand and wound back on the other hand to avoid the tape being scattered over.
Taking the correction tape as an example, it is especially loved by students, document workers and draft-persons for whiting out the mistakes and making a necessary revise. Hence, it is an undoubted fact that the correction tape is getting popular since it is developed and available in the market.
A correction tape device generally is received in a casing composed of two opposite casing halves with a transmission device. The transmission device comprises a tape release axle and a tape collect axle, and the tape wound on the tape release axle can advance to the tape collect axle for being wound on the collect axle. While the correction tape device is in use, it is only necessary for the user to press and move an output tape part at the front end of the correction tape device and the tape can drive the tape release axle to release the rest part of the tape and the used tape section can be wound by the collect axle.
Obviously, the collect axle and the release axle provide the same rotational direction such that the tape has to be released on one hand and be collected on the other hand. In order to perform the purpose, generally an idle gear or a relay wheel is arranged between the two axles. Of course, each gear ratio can be preset in the transmission assembly for the releasing speed being in accordance with the collect speed.
However, it is sophisticate while the preceding transmission device is arranged in a limited room. Currently, the arrangement of the transmission device is that a tape release gear is placed a cylindrical body with a lower circular edge and then wheel axles are surrounded with the tape and rotationally fit with the cylindrical body. The wheel axles are attached with gears so that the outer diameter of each wheel axle for winding the tape is not greater than the secondary gear and the lower circular edge.
Although the preceding conventional arrangement can provide a basic function of the correction tape device, specific tape release axles have to be designed for tapes in different lengths such as 600 cm or 800 cm for students in primary school and 1,600 cm for office people respectively. That is, a specific transmission device is made for a specific length of tape at the present time so that it is tedious and costly for fabricating different specifications of correction tape device because of providing different molding tools, different material preparations and different working procedures.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a transmission device for a continuous tape, which is suitable for all continuous tapes in different lengths, such that it is simple and economical for the user to perform a desired work with the continuous tape conveniently and effectively.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention can be more fully understood by reference to the following description and accompanying drawings, in which:
FIG. 1
is an exploded perspective view of transmission device for a continuous tape according to the present invention;
FIG. 2
is a front view of the transmission device for a continuous tape according to the present invention; and
FIG. 3
is a side view of the transmission device for a continuous tape according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to
FIGS. 1
,
2
and
3
, the transmission device for a continuous tape according to the present invention comprises a tape release part
1
, a relay part
2
and a tape collect part
3
. The embodiment illustrated in
FIGS. 1
,
2
and
3
is applied to a correction tape, but it is noted that the transmission device of the present invention is possible for any continuous tape except the correction tape without any restriction.
Wherein, the tape release part
1
further comprises a release sleeve
11
, a release gear
12
, and a release spring
13
. The release sleeve
11
provides an axial fitting hole
111
corresponding to a release axle A extending from a casing half part such that the tape release part
1
can rotationally fit with the release axle A and can turn by traction of the correction tape. The release sleeve
11
at an end thereof has two opposite split sleeve halves
112
to be pressed inward for fitting with a release gear
12
. An outer diameter formed by the sleeve halves
112
is smaller than a flange
113
disposed in the middle section thereof and the flange
113
at the periphery thereof provides a plurality of engaging ribs
114
for locating a correction tape wheel B. The release gear
12
provides an axial hole
121
to engage with the sleeve halves
112
and provides gear teeth
122
to mesh with the relay part
2
. In order to avoid a speed difference between tape releasing and tape collecting, the release gear
12
provides an inner gear ring
123
at the wall surface surrounding the axial hole
121
to form a gear seat space
124
between the gear ring
123
and the release sleeve
11
for accommodating a release spring
13
.
The relay part
2
is a gear assembly with an axial relay hole
21
to fit with a relay axle C extended from the casing half so that the relay assembly
2
can rotate around the relay axle C. The relay assembly C provides a big relay gear
22
next to a small relay gear
23
and the small relay gear
23
meshes with the release gear
12
so that the release gear
12
can rotate in a direction opposite to that of the small relay gear
23
. The relay part
2
is an integral piece as shown in FIG.
1
and it is preferable that the relay part
2
is made of high molecular by way of injection molding.
The tape collect part
3
at an end thereof has a tape collect gear
31
with an axial collect hole
34
integrally joining a big circular plate
32
and a collect axle D extending from the casing half. A collect cylinder
33
extends from the big ring
1
toward the other end of the collect part
3
with a diameter thereof smaller than the circular plate
32
. The collect cylinder
33
is used for collecting the correction tape and the circular plate
32
is used for limiting the lateral movement of the correction tape. In order to prevent the correction tape from turning inversely, a sleeve section
35
extends from the circular plate
32
in the collect cylinder
33
with a split clearance. An engaging strip
36
is extended in the clearance with a ratchet end
37
to engage with the ring teeth E at the outer end of the collect axle D such that the collect part
3
is unable to turn inversely.
Referring to
FIGS. 1
to
3
again, the release gear
12
is arranged to fit with the release sleeve
11
and the release spring
13
is placed between the release gear
12
and the release sleeve
11
. Then, the axial hole of the release sleeve
11
fits with the release axle A and the correction tape wheel with wound correction tape can be attached to the release sleeve
11
by way of engaging ribs
114
. The relay hole
21
of the relay part
2
fits with the relay axle C in a way of the small relay gear
21
facing the relay axle C. The axial collect hole
34
of the collect part
3
fits with the collect axle D and the head end of the correction tape is fixed to the collect cylinder
33
. Further, the correction tape can be arranged in a state of roundabout way with the positioning posts in a conventional casing. When the transmission device of the present invention is in use, the tape release part
1
, the delay part
2
and the tape collect part
3
can rotate at the same time as soon as the correction tape at the sharp end of the casing is daubed on the corrected spot. It is noted that the tape release part
1
and the tape collect part
3
rotates in the same direction and the delay part
2
rotates along a direction reversed to that of the release part
1
or the tape collect part
3
. Once the release tape has a speed different from that of the collect tape, it can be adjusted by way of the release spring
13
. In the meantime, ratchet end
37
engages with the ring teeth E on the collect axle D so that it is not possible for the collect part
3
to turn in a reversed direction and prevent from the phenomenon of backing tape.
It is appreciated from the foregoing that the present invention can release and collect the correction tape by way of the tape release part
1
, the relay part
2
and the collect part in the transmission device of the present invention. Further, the present invention is suitable for correction tapes in different lengths instead of different transmission devices for different tape lengths done by the prior art. Hence, the only single transmission device of the present invention possible for all tapes in different lengths can simplify the production and the material preparation while the transmission device of the present invention is made. Theses advantages are not possible for the prior art to reach effectively.
While the invention has been described with reference to a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined in the appended claims.
Claims
- 1. A transmission device for a continuous tape, comprising:a casing, extending a stationary release axle, a stationary relay axle and a stationary collect axle; a tape release part, providing a release sleeve to rotationally fit with the release axle with a flange at a middle section thereof and a plurality of engaging ribs on a periphery thereof for locating a correction tape wheel, and providing a release gear with an axial release hole to be fixedly attached to the release sleeve; a relay part, providing a big gear integrally joining a small gear with an axial relay hole to rotationally fit with the relay axle, and being associated with the tape release part by way of the small gear meshing with the release gear; a collect part, providing a collect gear integrally joining a big circular plate with a cylinder and a sleeve section in the cylinder extending from the circular plate, providing an axial collect hole to rotationally fit with the collect axle, and the collect gear meshing with the big gear of the relay part; whereby, when a correction tape wound on the correction wheel is released, the correction tape wheel turns together with the tape release part and the relay part and the tape collect part can be driven to rotate as well with the tape release part and the tape collect part turning in the same direction.
- 2. The transmission device for a continuous tape according to claim 1, wherein the release gear provides an inner gear ring at an wall surface surrounding the axial release hole to form a seat space between the inner gear ring and the release sleeve for accommodating a release spring.
- 3. The transmission device for a continuous tape according to claim 1, wherein the sleeve section of the tape collect part provides a split clearance and extends an engaging strip with a ratchet end in the clearance to engage with a ring gear end provided on the collect axle so as to resist the tape collect part rotating in a reversed direction only.
- 4. The transmission device for a continuous tape according to claim 1, wherein the continuous tape is a correction tape, a double-faced glue tape, a fluorescent color tape, or any other tape available for being released or collected synchronously.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
6206072 |
Orihara et al. |
Mar 2001 |
B1 |