Music – Instruments – Drums
Reexamination Certificate
2000-07-25
2001-10-23
Hsieh, Shih-Yung (Department: 2837)
Music
Instruments
Drums
C084S327000, C084S41100A
Reexamination Certificate
active
06307135
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a support leg for a bass drum.
In the past, a support leg for a bass drum has been held freely rotatable with respect to the trunk of the drum body so that the leg will provide an obstacle to the transportation of the bass drum with the support leg. An example of this is disclosed in U.S. Pat. No. 4,640,175. This publication shows a support leg that becomes freely rotatable by operation of a single tightening nut. The length of the support leg is simultaneously made freely adjustable both for elongation and contraction.
However, it is troublesome to adjust the length and the rotation position of the support leg each time a bass drum is set up. A support leg which can continuously maintain a set length and position would be more convenient when the bass drum is to be set up.
SUMMARY OF THE INVENTION
The present invention provides a support leg for a bass drum which can accommodate rotation of the support leg without causing change in the length of the leg with respect to the drum body once the support leg length is set and wherein the leg can be quickly set without need for readjusting the length of the support leg when the bass drum is to be next set up. The invention concerns a support leg for a base drum including a base fastened to the drum body, an inside member rotatably positionable with respect to the base, an outside member pivoted to the inside member; the inside and outside members being clampable together to clamp a leg between them; and a threaded shaft with a nut for tightening the inside holding member to the base, clamping the inside member at a selected rotative orientation with respect to the base, whereby loosening of the clamping by the inside and outside members enables the length position of the leg to be adjusted and loosening the tightening nut enables the rotative orientation of the leg to be adjusted.
The support leg for the bass drum includes a leg of a bar-shape. It has a base that includes an installation part on its inner side for attaching the base to the bass drum body. The opposite outer side of the base includes a rotation surface. A positioning groove is formed in the rotation surface on the outer side. A rotary shaft stands up from the center of the rotation surface of the base. The outward tip region of the shaft is screw threaded.
There is an inside leg holding member which has an inside axial hole for fixing the leg. It has a through hole through which the rotary shaft extends. A cooperating inside rotary surface on the inside member cooperates with the rotation surface of the base, with the through hole as the rotation center of both surfaces. The inside rotary surface has a rib that is insertable into the groove formed in the rotation surface on the base. A tightening seat is formed on the outer surface of the inside member around the periphery of the through hole. An inside bearing part is formed at one radial side of the through hole. An inside leg holding groove formed in the outer surface of the inside member freely accommodates the leg lengthwise. The inside groove is radially between the central through hole and the inside axial hole. There is an outside leg holding member which has an outside axial hole at a position corresponding to a through part that accommodates the tightening seat and the inside axial hole. An outside bearing part on the outside member corresponds to the inside bearing part on the inside member. An outside leg holding groove is formed in the inner surface of the outside member at a location and orientation that corresponds to the inside leg holding groove formed on the outer surface of the inside member.
A pivot axle is attached between the outside bearing part and the inside bearing part. A leg tightening member is freely installed in the inside axial hole and the outside axial hole by which the inside and outside members are tightened on the leg held in the grooves in their respective opposed surfaces. A tightening nut is screwed to the tip region of the rotary shaft.
Other objects and features of the invention are explained below with reference to the attached drawings.
REFERENCES:
patent: 4640175 (1987-02-01), Hoshino
patent: 4700437 (1987-10-01), Hoshino
patent: 4796508 (1989-01-01), Hoshino
patent: 5408913 (1995-04-01), Hoshino
Hoshino Gakki Kabushiki Kaisha
Hsieh Shih-yung
Ostrolenk Faber Gerb & Soffen, LLP
LandOfFree
Support leg of a bass drum does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Support leg of a bass drum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Support leg of a bass drum will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2608185