Music – Instruments – Drums
Reexamination Certificate
2001-12-11
2003-04-22
Hsieh, Shih-Yung (Department: 2837)
Music
Instruments
Drums
C084S41100A
Reexamination Certificate
active
06552253
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates to an improved structure of a rim hoop for positioning, and in particular, to a structure of a rim hoop being mounted onto a lug and then onto the drum bell so that the drum head of a drum can be replaced easily by removing the drum hoop. The sound quality produced from the drum will not be affected.
(b) Description of the Prior Art
The securing mechanism of a conventional drum structure, as shown in
FIGS. 4
to
6
includes a drum bell
20
having a plurality of rows of through holes
21
for direct mounting onto a lug
22
being used as the securing device of drum head
23
. One side of the drum bell
20
is provided with a rim hoop
25
, facilitating the positioning of the drum at an appropriate height. The conventional rim hoop
25
is mounted to the drum hoop
24
for the drum head
23
with screw bolts
26
. An elastic ring pad
27
is used to reduce the impact due to the vibration, the rim hoop
25
. However, the rim hoop
25
is located between the drum and the drum support the vibration of the drum will affect the stability of the screw bolts
26
and as a result, the rim hood
25
may be loosened. Thus, the sound quality of the drum will be affected. Besides, if the drum hood
23
is to be replaced, the rim hoop
25
has to be removed before the drum hood
23
is replaced. Therefore, it is rather time-consuming and laborious to replace the drum head.
Accordingly, it is an object of the present invention to provide an improved structure of a rim hood for positioning, which mitigates the above-mentioned drawbacks.
SUMMARY OF THE INVENTION
The present invention relates to an improved structure of a rim hoop for positioning, and in particular, to a structure of a rim hoop being mounted onto a lug and then onto the drum bell so that the drum head of a drum can be replaced easily by removing the drum hoop. The sound quality produced from the drum will not be affected.
An aspect of the present invention is to provide an improved structure of a rim hoop for positioning having a drum bell, a drum hoop for positioning a drum head bolts, and rim hoop and lug, characterized in that the lug is an arch-shaped structure including a straight shaft rod and a seat rod at the ends thereof, the lug is positioned at one side of the drum bell, the rim hoop is mounted onto the middle section of the shaft rod by means of an elastic circular pad such that the rim hoop and the lug are directly connected to the external ring surface of the drum bell, facilitating the drum bell to position the drum hoop with bolts fastening onto the lug.
A further object of the present invention is to provide an improved structure of a rim hood for positioning, wherein protrusion and recess are formed at corresponding position of the hole edge at the seat rod of the lug and the end face of the stepped ring of the shaft rod, facilitating fixed directionpositioning and the center of the shaft rod of the lug is provided with a screw hole for the fastening of a screw bolt to lock the drum hoop.
The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 4206681 (1980-06-01), Kluczynski et al.
patent: 4295405 (1981-10-01), Sleishman
patent: 4596176 (1986-06-01), Gauger
patent: 9422129 (1994-09-01), None
Bruno & Son, Inc Catalog No. 96.*
Musical catalog, Lark in the morning.*
Wexler, complete Catalog of Musical Instrument, No. 66.
Hsieh Shih-Yung
Lei Leong C.
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