JPS5843029Y2 - Tuning floor tom pedal stopper mechanism - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a pedal stopper mechanism for a tuning floor tom that is easy to operate and can reliably lock the footboard.

Generally, drums such as bass drums and snare drums are tuned by hand tightening bolts attached to a tightening frame one by one and changing the tension of the drum head to obtain a predetermined pitch. Whereas tuning floor toms are cumbersome to operate, the tuning floor tom is equipped with a head tension mechanism that operates in conjunction with pedal depression, making it possible to adjust the pitch at will, not only when not playing, but also during playing. It is configured as follows.

After the pedal has been depressed to a certain angle, it is desirable to maintain that pedal depression position even if the foot is released, and for this reason, a pedal stopper mechanism as shown in FIG. 1 has conventionally been used.

That is, this pedal stopper mechanism consists of a stopper screw 3 screwed into a frame 2 to which the lower end of a column 1 supporting a tuning floor tom (not shown) is fixed, and a stopper screw 3 that is rotatably supported by the stopper screw 3. It is equipped with a stopper bar 5 that is always urged upward by a spring 4, and an abbreviated stopper 6 that is attached to the tip of the stopper bar 5 by screwing so that the height can be adjusted freely. As shown in the figure, the rear end of the footboard 7 that is depressed is locked.

However, in such a pedal stopper mechanism, the footboard 7 is kept pressed down with the foot, and the footboard 7 is rotated slightly laterally to be positioned below the stopper 6. It is necessary to perform two operations: stepping on the stopper and rotating it to the side, which not only poses a problem with operability, but also because it is simply located below the stopper 6, it may cause vibrations or accidental footfall during performance. If the footboard 7 hits the stopper 6, the footboard 7 may slip and come off the stopper 6.

In addition, since the footboard 7 is rotated laterally, there is a drawback in that frictional noise is generated at the connection portion with the heel 8.

This idea was made in order to solve the above-mentioned drawbacks of the conventional technology.The movable stopper, which is provided on the footboard so as to be movable in the front-back direction and is always biased toward the front end, is raised to the stopper base when the pedal is depressed. This invention provides a pedal stopper mechanism for a tuning floor tom that improves operability and securely holds the footboard with an extremely simple structure in which the footboard is engaged with a fixed stopper that is freely adjustable. .

This invention will be explained in detail below based on the drawings.

FIG. 2 is a partially cutaway side view of a tuning floor tom equipped with a pedal stopper mechanism according to the present invention, and FIGS. 3 and 4 are a sectional view and a perspective view of essential parts, respectively.

In these figures, the tuning floor tom 10 is provided with three parts distributed approximately equally around the outer circumference of a cylindrical body 11.
It is arranged on the floor by three floor legs 13 (only one shown) whose upper ends are connected and held by three brackets 12 (only one shown) and a support 13a.

Both upper and lower open ends of the drum body 11 are covered by front and back drum heads 16 a and 16 b whose peripheral edges are fixed to an annular head frame 14 , 15 , respectively.

The head frames 14 and 15 are respectively fitted into the open ends of the trunk body 11, and these head frames 14 and 15 are pressed by the clamping frames 17 and 18 fitted to the outer peripheral edge of the trunk body 11, and are tightened. A plurality of tightening bolts 19 attached to the frames 17 and 18 are connected to each lug 20 fixed to the outer peripheral surface of the trunk body 11.
By screwing and connecting the drum heads 16a and 16b, the front and back drum heads 16a and 16b are supported and tensioned with uniform tension.

Therefore, the clamping frames 17 and 1 are tightened by the tightening bolt 19.
8 up and down, thereby changing the force applied to the head frame 14.15, both drum heads 16a, 16
The tension of b changes so that a desired pitch can be obtained.

Furthermore, this tuning floor tom 10 includes a footboard 21 and a rear end portion 2 of the foot 1 to the board 21.
The surface drum head 16a is also supported by a head support tension mechanism 26 consisting of a pedal rod 22 whose lower end is pin-coupled to 1a, and a lever mechanism 25 connected to the upper end of this pedal rod 22 via links 23 and 24. It is constructed so that the tension can be variably set.

That is, when the first link 23 is rotated counterclockwise by the pedal rod 22 that descends as the footboard 21 is depressed, the arm 27 is attached to this link 23.
The second link 24 connected through the cylinder rotates clockwise, so that one end is connected to the second link 24 and the other end is rotatably supported on the inner wall surface of the trunk body 11. The substantially horizontal arm 28 is rotated counterclockwise, and accordingly, the arm 28 is rotatably provided on the upper outer peripheral surface of the trunk body 11, and one end is connected to the head frame 14 via a connecting rod 29, and the other end is connected to the head frame 14 via a connecting rod 29. rotates the third link 32, which is connected to the rod connector 30 provided at the intermediate portion of the arm 28 via the tension rod 31, in the counterclockwise direction.

As a result, the head frame 14 descends and the surface drum head 1
Increase the tension of 6a.

Therefore, the rear end 21a side of the footboard 21, to which the lower end of the pedal rod 22 is connected, is normally in a state floating upward, and the moving stop 1 to the flange forming the pedal stopper mechanism are located on the lower surface of the rear end 21a. 34 are arranged.

As appropriately shown in FIG. 3, the movement stopper 34 has a long hole 35 formed in the center thereof in the longitudinal direction, and is inserted into the long hole 35 through a washer 36. It is attached to the footboard 21 by a fixing screw 37 screwed into the lower surface of the rear end 211 of the 21 so as to be movable in the front and back direction, and the rear end extending rearward of the movement stopper 34 has an upper A newly curved hook-shaped engaging portion 38 is provided.

A recess 39 is formed at a position closer to the front than the fixing screw 37 on the lower surface of the rear end of the footboard 21 and accommodates a compression coil spring 40 . By pressing the bending part 41 facing into the recess 39 provided at the front end of the board 21, the movement stopper 34 is moved to the front end 21b of the board 21.
The side is always energized.

Further, a toe stop 42 is provided on the upper surface of the rear end of the footboard 21 and is integrally coupled with the moving stopper 34 and moves in the front-rear direction.

That is, a long hole 45 that is long in the front-rear direction and communicates with the four parts 39 is bored in the rear end of the footboard 21, and the new curved part 41 of the moving stopper 34 is attached to this long hole 45 via a washer 43. The fixing screw 44 passes through the toe stop 42 and is screwed into the toe stop 42.
and the movement stopper 34 are integrally connected.

On the other hand, the frame 4 to which the lower end of the column 13a is fixed
The lower end of a stopper base 48 having a longitudinally long elongated hole 47 is fixed to the rear end surface of the stopper base 48 with a set screw 49. A height-adjustable fixed stopper 51 is attached therebetween.

Although not shown, the fixed stopper 51 is prevented from rotating in the vertical direction about the thumbscrew 50, and is provided with an engaging portion 52 bent downward into a substantially hook shape at its upper end. There is.

Note that 53 is a heel 54 rotatably supporting the front end 21b of the footboard 21, and a heel 54 is connected to the frame 46 and the heel 5.
This is the heel connecting rod that connects 3.

Now, FIG. 2 shows a state in which the footboard 21 is not fully heated, that is, the tension force by the head support tension mechanism 26 is not acting on the surface drum head 16a. To increase the tension of the footboard 16a, step on the footboard 21 with your foot to lower it below the fixed stopper 51, and when you take your foot off, move the toe stop 42 backward against the compression coil spring 40 with your toe. Just do it.

In this case, when the toe stop 42 moves, the movement stopper 3
4 also move together, the retaining part 38 is fixed stopper 5.
1, but in this state, the surface engaging portion 38°52 is not yet engaged.

When you take your foot off the footboard 21, the restoring force of the surface drum head 16a causes the footboard 21 to rotate upward and return to its original position. It engages with the joint portion 52 to hold the footboard 21 at a predetermined depression angle position.

Therefore, the tension on the surface drum head 16a increases by an amount corresponding to the amount of footboard depression.

On the other hand, in order to return the footboard 21 to its original initial position, it is sufficient to depress the footboard 21 slightly to release the engagement between the movable stopper 34 and the fixed stopper 51.

As a result, the movement stopper 34 is moved forward by the force of the compression coil spring 40, so that the footboard 21 is rotated upward by the restoring force of the surface drum head 16a and returned to its original state.

As explained above, according to the pedal stopper mechanism of the tuning floor tom according to this invention, by stepping on the footboard and moving the toe stop backward with the foot just before taking the foot off the footboard, the movable stopper is engaged with the fixed stopper. Since the footboards are aligned, the footboard can be reliably fixed and held at the depression angle position.

In particular, since the footboard does not have to rotate to the side, it has excellent operability and generates little noise, and the fixed stopper and movable stopper will disengage unless the footboard is accidentally stepped on. There will be no problems and you can perform with peace of mind.

In addition, the structure is simple and the height of the fixed stopper can be easily adjusted, and its practical effects are very large.

[Brief explanation of drawings]

Fig. 1 is a side view showing an example of a pedal stopper mechanism used in a conventional tuning floor tom, and Fig. 2 is a partially cutaway side view showing an embodiment of a tuning floor tom equipped with a pedal stopper mechanism according to the invention. , FIG. 3, and FIG. 4 are a sectional view and a perspective view of the main parts, respectively. 10...Tuning floor tom, 16 a
, 16 b... drum head, 26...
・Head support tension mechanism, 21...footboard, 22...pedal rod, 34...movement stopper, 38...engaging portion, 40... ...
・Compression coil spring, 42... Toe stop, 46
...Frame, 48...Base for stopper, 51...Fixed stopper, 52...
・Engagement part.

Claims (1)

[Scope of utility model registration request] In a tuning floor tom that operates a head tension mechanism in conjunction with pedal depression to vary the tension of the drum head, the front end is rotatably supported.
A footboard whose rear end is connected to the head tensioning mechanism via a pedal rod, a movable stopper having a retaining part slidably attached to the rear end of the footboard, and fixed to the movable stopper. A toe stop that is attached to the toe stop and a spring that always biases the movable stopper toward the front end of the footboard are provided on a stopper base fixed to the frame so that the height thereof can be adjusted freely, and the retaining portion of the movable stopper is engaged. A pedal stopper mechanism for a tuning floor tom, comprising a fixed stopper that locks the footboard at its depression angle position.