Buckles – buttons – clasps – etc. – Article holder attachable to apparel or body – Pencil
Patent
1995-02-22
1996-07-16
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Article holder attachable to apparel or body
Pencil
24 11R, 24 11S, B43K 2500
Patent
active
055354874
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a clip attachment apparatus for a writing instrument.
BACKGROUND ART
In previous clip attachment mechanisms, at the outer surface of the rear of the shaft, the radial base section of the forward-extending clip attachment section was formed as a whole, and a clip base section was inserted and fixed into an insertion hole which opened at the end of the forward-extending clip attachment section.
However, in the above example of prior art, because it is a construction in which a clip base section is inserted and fixed into an insertion hole which opens forwardly at the end of the clip attachment section, there are cases in which the fit of the clip base section and the insertion hole is loose due to such factors as dimensional errors, and there are problems such as the lateral shaking and dropping out of the clip.
DISCLOSURE OF INVENTION
According to the present invention there is provided a writing instrument clip attachment mechanism formed by the press fitting of the folded back base section of the clip into the outer and inner surfaces of the clip attachment section of the shaft and by the attachment of a cover which covers (and also preferably helps lock) said folded back base section to the clip attachment section.
In this way, the folded back base section of the clip is press fit into the inner and outer surfaces of the clip attachment section, so there is no danger of the fit of the clip becoming loose, and the lateral shaking and dropping out of the clip can be prevented. Moreover, the external appearance is not compromised because the folded back base section of the clip is covered with the cover.
It is therefore an object of the invention to provide a clip attachment structure that locks the clip relative to the structure.
It is a feature of the clip attachment structure to include an opening for receiving the bent end of the clip, and to provide a cover that preferably prevents the bent portion of the clip from withdrawing from the opening.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described with reference to the accompanying drawings, in which:
FIG. 1A is a pictorial side view showing a first embodiment of the mechanism of the present design.
FIG. 1B is a front view of the same.
FIG. 2A is a side view in partial cross section which shows the construction of the mechanism of the present invention.
FIG. 2B is a cross section taken at lines 2B--2B of FIG. 2A, and FIG. 2C is an end view of FIG. 2A.
FIG. 3A is a side view of a second embodiment.
FIG. 3B is an end view of the embodiment of FIG. 3A.
FIG. 4A is a top view which shows the upper half of the first embodiment and the lower half of a second embodiment, without a cover attached.
FIG. 4B is a partial cross section taken through FIG. 4A, along lines 4B--4B.
FIG. 4C is an end view of FIG. 4A.
FIG. 5A is a side view of a third embodiment which shows the clip attachment section in a condition where the cover and the clip are not attached.
FIG. 5B is a cross section taken at line E--E of FIG. 5A.
FIG. 5C is a vertical cross section of the cover, and
FIG. 5D is a bottom view of the cover.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, the construction will be explained.
In FIGS. 1 and 2 of a first embodiment, 1 is the writing instrument shaft, 2 is the clip attachment section which is formed on the upper part of the rear of the shaft 1, 2A and 2B are the outer and inner surfaces of this clip attachment section 2 respectively, and 2a and 2b are the pair(s) of clip attachment grooves which are positioned adjacent the outer and inner surfaces 2A, 2B of the clip attachment section 2 respectively.
The folded back base section 4 of the clip 3 is press fit into the clip attachment grooves 2a, 2b of the clip attachment section 2. A cover attachment groove 6 is formed on the surfaces on both sides of the clip attachment section 2, a cover attachment protrusion section 7 is formed on the inner surfaces of both sides of the cover 5, the cover attachment protru
REFERENCES:
patent: 1314104 (1919-08-01), Wahl
patent: 1720471 (1929-07-01), Fritsch
patent: 1854747 (1932-04-01), France
patent: 3842466 (1974-10-01), Katz et al.
patent: 4653154 (1987-03-01), Malm
patent: 4926525 (1990-05-01), Eylers
Drucker Allen
Ebinuma Tadayoshi
Kageyama Hidehei
Sakran Victor N.
The Gillette Company
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