Music – Instruments – Drum and cymbal beaters
Reexamination Certificate
2000-10-30
2001-08-28
Hsieh, Shih-Yung (Department: 2837)
Music
Instruments
Drum and cymbal beaters
C084S422200, C084S422300
Reexamination Certificate
active
06281418
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a pedal mechanism for base drum, and more particularly to a spring hanging block adapted for use in a pedal mechanism for base drum, which is injection-molded from plastics.
2. Description of the Prior Art
A regular pedal mechanism for base drum, as shown in
FIGS. 2 and 2A
, comprises a stand
1
, a transverse shaft
3
supported on the stand
1
by axle bearings
4
, a beater
5
connected to the transverse shaft
3
and turned back and forth with the transverse shaft
3
, a pedal
2
, the pedal
2
having a rear end pivoted to the stand
1
and a front end coupled to the transverse shaft
3
by a chain, an end block
61
fixedly fastened to one end of the transverse shaft
3
, the end block
61
having, a coupling, rod
61
1
, a nut
65
fixedly fastened to the stand
1
, an eye-end screw
64
fastened to the nut
65
, a spring hanging block
62
coupled to the coupling rod
611
of the end block
61
, and a tensile spring
63
connected between the spring hanging block
62
and the eye-end screw
64
. The spring hanging block
62
, as shown in
FIG. 1
, is comprised of two half shells fastened together by a screw
66
, comprising a coupling hole
621
adapted to receive the coupling rod
611
of the end block
61
, a positioning groove
622
and a positioning flange
623
adapted to secure the coupling rod
611
to the coupling hole
621
, and a bottom hook
624
adapted to hold the tensile spring
63
. Because this structure of spring hanging block is comprised of two half shells that are not identical, the manufacturing cost of the spring hanging block is high, and its installation procedure is complicated. This structure of spring hanging block also complicates inventory control.
SUMMARY OF THE INVENTION
The present invention relates to a pedal mechanism for base drum, and more particularly to a spring hanging block adapted for use in a pedal mechanism for base drum, which is injection-molded from plastics.
The invention has been accomplished to provide a spring hanging block, which eliminates the aforesaid drawbacks. It is one object of the present invention to provide a spring hanging block, which is inexpensive to manufacture. It is another object of the present invention to provide a spring hanging block, which is easy to install. According to one aspect of the present invention, the spring hanging block comprises a coupling hole with positioning means adapted for fastening to the coupling rod of the end block of the pedal mechanism, a pin hole adapted to hold a rivet, and an end notch through which the tensile spring is inserted and hooked on the rivet.
According to another aspect of the present invention, the spring hanging block is injection-molded from plastics.
The foregoing objects 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: 4756224 (1988-07-01), Lombardi
patent: 5365824 (1994-11-01), Hoshino
patent: 6002076 (1999-12-01), Karn
patent: 6137040 (2000-10-01), Hoshino
A & J
Hsieh Shih-yung
New Sound Enterprise & Musical Instrument MFG Co. Ltd.
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