Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2001-01-12
2004-03-16
Tran, Pablo N. (Department: 2685)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S090300, C455S575100, C455S345000
Reexamination Certificate
active
06708043
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates, generally, to a radio communication apparatus of the waterproof type which is for marine use and/or for use in rainy weather, and more particularly, to an improvement for ensuring the waterproof feature of a body of such an apparatus.
2. Description of the Related Art
Conventionally, as shown in
FIG. 6
, in a radio communication apparatus
1
b
having such a structure that a tubular waterproof cover member
3
b
is slid over an apparatus body
2
b
to be mounted thereon to cover an outer peripheral surface
6
b
of the body for the waterproofing, an annular packing member
4
b
has been arranged to be attached to a rear surface
9
b
of the apparatus body
2
b.
In the radio communication apparatus
1
b
, in order to unite the cover member
3
b
and the apparatus body
2
b
by sliding the member
3
b
(in the direction indicated by an arrow Ab) over the body
2
b
to be fitted thereon and to maintain the united state, a plurality of screws (not shown) are inserted, in the direction of the sliding, in holes (not shown) formed in the rear portion of the cover member
3
b
and then threaded into the female screws (not shown) formed in the rear surface portion
9
b
of the apparatus body
2
b
, again in the sliding direction.
In the above case, the direction of threadedly tightening by the plurality of screws is the same as the direction of waterproof effect by the packing
4
b
, and when pressing forces exerted by the threadedly tightened screws upon the packing
4
b
are even, deformation of the packing
4
b
by these pressing forces is annularly uniform, whereby a watertight condition between the apparatus
2
b
and the cover member
3
b
is ensured.
However, when the tightening forces of the plurality of screws are not even, the deformation of the packing
4
b
due to the pressing forces by the screws is also uneven. This makes the packing effect uneven, causing a problem that a gap develops between the apparatus body
2
b
and the cover member
3
b
, whereby the watertight condition is lost.
Particularly, the radio communication apparatus
1
b
of the waterproof type is often used in hazardous environments, such as on the sea and in rainy weather. Therefore, when the waterproof condition is not sufficient, serious problems may result.
To solve this problem, it is conceivable that the screws may be tightened uniformly so that the pressing forces against the packing are even. However, this give rise to another problem, i.e., skills in tightening the screws uniformly will be needed.
SUMMARY OF THE INVENTION
In view of the above, it is an object of the present invention to provide a radio communication apparatus which is easy to handle in respect of its waterproofness, and in which waterproof of the apparatus body can surely be attained.
The present invention is directed to a radio communication apparatus in which packing members, when mounted on the apparatus body, are interposed between the apparatus body and the cover member so as to project from an outer peripheral surface of the body in a direction perpendicular to an axis of the body to abut an inner surface of the cover member.
Specifically, the delivered object is achieved with the radio communication apparatus according to the invention, which comprises an apparatus body, a cover member for being slid over the apparatus body and mounted thereon to thereby cover an outer peripheral surface of the apparatus body, and a packing element interposed between the apparatus body and the cover member for preventing water from entering the apparatus body, characterized in that the apparatus body is formed, in its outer peripheral surface on which the cover member is mounted, with a continuous groove or a continuous step in which the packing element is fitted, the packing element being so arranged, when fitted in the continuous groove or the continuous step, to project from the outer peripheral surface of the apparatus body in a direction perpendicular to an axis of the apparatus body to thereby abut an inner surface of the cover member.
With the radio communication apparatus having such a structure, the packing members abut the waterproof cover member at their outer sides in a direction perpendicular to the axis of the outer peripheral surface of the apparatus body, so that pressing force at the abutting portion is uniform and is not susceptible to the threading of the screws.
The above-mentioned and other aspects of the invention are apparent form and will be elucidated, by way of non-limitative example, with reference to the embodiments described hereinafter. It should be noted that these embodiments are not intended to restrict the scope of the present invention.
REFERENCES:
patent: 4856087 (1989-08-01), Nesbit
patent: 5253822 (1993-10-01), Matsuki et al.
patent: 5367296 (1994-11-01), Schell
patent: 5369796 (1994-11-01), Kung
patent: 5386084 (1995-01-01), Risko
patent: 5447041 (1995-09-01), Piechota
patent: 5613237 (1997-03-01), Bent et al.
patent: 5754643 (1998-05-01), Decker et al.
patent: 5946395 (1999-08-01), Petrella et al.
patent: 6058356 (2000-05-01), Swanson et al.
patent: 6078792 (2000-06-01), Phillips
patent: 6179253 (2001-01-01), Cotton
patent: 6496688 (2002-12-01), Smith
patent: 6510226 (2003-01-01), Thomann et al.
patent: 2002/0096607 (2002-07-01), Strunk
patent: 2002/0193136 (2002-12-01), Halkosaari et al.
patent: WO 9634331 (1996-10-01), None
patent: WO 9703511 (1997-01-01), None
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