U.S. patent application number 10/654479 was filed with the patent office on 2005-03-10 for housing of measuring tape.
Invention is credited to Lin, Ping Lin.
Application Number | 20050050748 10/654479 |
Document ID | / |
Family ID | 34136670 |
Filed Date | 2005-03-10 |
United States Patent
Application |
20050050748 |
Kind Code |
A1 |
Lin, Ping Lin |
March 10, 2005 |
HOUSING OF MEASURING TAPE
Abstract
A housing of measuring tape compromising a supporting a hard
plastic shell, a buffer soft plastic shell and two impact proof
side metal covers, the supporting hard plastic shell and the buffer
soft plastic shell can be injected together or stuck together after
being injected separately for the right, left body of the measuring
tape. During assembling, screws are applied in both directions to
have the tape wheel, the elastic component, the tape lock/automatic
rewind switch and all the components installed inside the right,
left body, then to have the impact proof side metal covers
installed on both external sides of the right, left body. The screw
holes are covered by the impact proof side metal covers, such
structure make the housing with light weight, impact proof and not
easy to disperse characters.
Inventors: |
Lin, Ping Lin; (Sanchung
City, TW) |
Correspondence
Address: |
Loong C. Lei
PMB#1008
1867 Ygnacio Valley Rd
walnut creek
CA
94598
US
|
Family ID: |
34136670 |
Appl. No.: |
10/654479 |
Filed: |
September 4, 2003 |
Current U.S.
Class: |
33/769 |
Current CPC
Class: |
G01B 3/1041 20130101;
G01B 3/1043 20200101 |
Class at
Publication: |
033/769 |
International
Class: |
G01B 003/10 |
Claims
1-8. (canceled)
9. A housing of measuring tape comprising: a supporting hard
plastic shell made of hard plastic and a buffer soft plastic shell
made of soft plastic, said buffer soft plastic shell being an
external part of said measuring tope and said supporting hard
plastic shell being an inner layer to constitute a right and left
body parts of the measuring tape; two impact proof side metal
covers made of aluminum by stamping to match up an outline shape of
said right and left body parts, wherein during assembly, screws are
applied to have all components of a measuring tape installed inside
said right and left body parts, said impact proof side metal covers
being installed on both external sides of said right and left body
parts; said supporting hard plastic shell and said buffer soft
plastic shell being injected together to constitute said right and
left body parts; said impact proof side metal covers having a
folding brim on an outer brink formed during stamping; said right
and left body parts having a slope curve with a surrounding
indentation that is on the location corresponding to said impact
proof side covers, said impact proof side metal covers covering
said slope curve of said right and left body parts, folding brims
inlaying into said indentations; and a plurality of screw holes and
corresponding tubes being located symmetrically on said right and
left body parts, said screw holes being covered by said impact
proof side metal covers.
Description
BACKGROUND OF THE INVENTION
[0001] I. Field of the Invention
[0002] This invention relates generally to a housing of measuring
tape and, more specifically, to a housing of measuring tape that
made of hard and soft plastic materials in two layers and covered
with two impact proof metal side covers for better protection and
easy to manufacture.
[0003] II. Description of the Prior Art
[0004] Heretofore, it is known that the housing of most of the
engineering measuring tapes in the market are made of hard plastic
or metal.
[0005] The hard plastic housings can have the color of the plastic
material as exterior decoration. Many manufacturers apply paint,
electro-plate to have the housings look like metal for better
appearance. However, the painting, electro-plating not only
introduces environment hazard but also easy get scratches on the
surface due to collision. While falling from higher ground or under
heavy impact the plastic housing might get damage easily. The metal
housings have smooth exterior with heavy weight that is not easy to
hold and is tended to drop easily. The metal housings are strong
and durable, however, the appearance is very difficult to have
different variation.
[0006] Some manufacturers create double layer housing to have soft
plastic material wraps over hard plastic. The hard plastic is the
supporting structure while the soft plastic is the impact proof
buffer. Such arrangement can fulfill light weight and impact proof
requirement.
[0007] All the measuring tape housings mentioned above, regardless
the manufacturing and technique, the structure is still in
symmetrical assembly with screws design: apply right and left
housing to pack the tape wheel, elastic component and tape
lock/automatic rewind switch together internally. The screws might
get loose by collision and swing in a long period of time. The
whole structure might be broken and users might not be easy to
assemble all the parts together.
SUMMARY OF THE INVENTION
[0008] It is therefore a primary object of the invention to provide
a housing of measuring tape made of hard and soft plastic materials
in double layers. The exterior is cover with two impact proof side
metal covers. The appearance of the housing can be in different
variety and protection of the impact proof side metal covers for
stronger structure.
[0009] In order to achieve the object mentioned-above, the present
invention provides a housing of measuring tape having a supporting
a hard plastic shell, a buffer soft plastic shell and two impact
proof side metal covers. The supporting hard plastic shell and the
buffer soft plastic shell can be injected together or stuck
together after being injected separately for the right, left body
of the measuring tape. During assembling, screws are applied in
both directions to have the tape wheel, the elastic component, the
tape lock/automatic rewind switch and all the components installed
inside the right, left body. Then to have the impact proof side
metal covers installed on both external sides of the right, left
body for a housing with light weight, impact proof and not easy to
disperse.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The accomplishment of the above-mentioned object of the
present invention will become apparent from the following
description and its accompanying drawings which disclose
illustrative an embodiment of the present invention, and are as
follows:
[0011] FIG. 1 is an assembly of the present invention;
[0012] FIG. 2 is a partial assembly view of the present
invention;
[0013] FIG. 3 is a perspective view of the present invention;
[0014] FIG. 4 is a cross-sectional view of the present
invention;
[0015] FIG. 5 is an enlarged view of the impact proof side metal
cover and the right, left body in accordance with the present
invention;
[0016] FIG. 6 is an enlarged view of the screw hole and the right,
left body in accordance with the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
[0017] Referring to FIG. 1 and FIG. 2, the present invention
applies of a supporting hard plastic shell (1), a buffer soft
plastic shell (2) and two impact proof side metal cover (3) to
constitute a right, left body (101) of a measuring tape (10); the
right, left body (101) pack and screw a tape wheel (102), an
elastic component, and a tape lock/automatic rewind switch (103)
inside to be a measuring tape (10). The tape wheel (102), elastic
component and the tape lock/automatic rewind switch (103) are the
necessary components of the known measuring tapes and are not
described (the tape wheel and elastic component are not shown in
FIG. 1 and FIG. 2). The functions of each component are described
below:
[0018] the supporting hard plastic shell (1) is made of hard
plastic and the buffer soft plastic shell (2) is made of soft
plastic. The supporting hard plastic shell (1) and the buffer soft
plastic shell (2) can be injected together or stuck together after
being injected separately for the right, left body (101) of the
measuring tape (10). The buffer soft plastic shell (2) is an
external part and the supporting hard plastic shell (1) is arranged
on the inner layer of the right, left body (101). The supporting
hard plastic shell (1) is used as the supporting structure of the
right, left body (101) while the buffer soft plastic shell (2) is
as the impact proof mechanism. Referring to FIG. 4 and FIG. 6, a
plurality of screw holes (104) and corresponding tubes (105) in
symmetry are provided on the right, left body (101) made of the
supporting hard plastic shell (1) and the buffer soft plastic shell
(2). The impact proof side metal cover (3) is made of aluminum by
stamping to match up the outline shape of the right, left body
(101).
[0019] Based on above structure, during assembling, a screw (106)
is applied in both directions to have the tape wheel (102), the
elastic component, the tape lock/automatic rewind switch (103) and
all the other components installed inside the right, left body
(101), as shown in FIG. 2. Then cover the impact proof side metal
cover (3) on both sides of the right, left body (101), as shown in
FIG. 4. The screw hole (104) of the right, left body (101) are
covered by the impact proof side metal cover (3), users cannot
access the screw hole (104) to unlock those screw (106). Such
structure, as shown in FIG. 3, make the measuring tape (10) impact
proof, light weight and not easy to disperse.
[0020] The right, left body (101) have a slope curve (107) with
indentation (108) on surrounding that is on the location
corresponds to the impact proof side metal cover (3). A folding
brim (31) is formed when the impact proof side metal cover (3) is
made by stamping. Such arrangement can have the impact proof side
metal cover (3) cover the slope curve (107) of the right, left body
(101), the folding brim (31) inlay into the indentation (108) for
better anti-impact strength.
[0021] FIG. 5 shows the outer brink of the buffer soft plastic
shell (2) of the measuring tape (10). To offer the best protection
on the most often impact area of the measuring tape (10), the
impact proof side metal cover (3) covers both sides of the
measuring tape (10) that suffers most of grinding scratches to have
the best protection. The impact proof side metal cover (3) shield
the screw hole (104) that not only prevents those screw (106) from
loosing but also offers a better appearance of the measuring tape
(10).
[0022] The right, left body (101) are made of soft, hard plastic
materials, with the easy molding of plastic, the right, left body
(101) can be in various appearance and protected by the impact
proof side metal cover (3). Such scheme makes the measuring tape
(10) easy for manufacturing.
[0023] While a preferred embodiment of the invention has been shown
and described in detail, it will be readily understood and
appreciated that numerous omissions, changes and additions may be
made without departing from the spirit and scope of the
invention.
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