JP3380453B2 - Drum pedal hoop holding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoop holding device for a drum pedal.

[0002]

2. Description of the Related Art An example of a conventional hoop pressing device for a bass drum is shown in FIGS. This hoop pressing device has a structure disclosed in Japanese Utility Model Application Laid-Open No. 4-96794 of the present applicant, and it is a column base 11 of the drum pedal 110.
The column base 11 is attached to the front part of the hoop clamp body 120 which is rotatably supported in the front-rear direction on the shaft 3 through the shaft 121.
3 The drum hoop 10 between the front hoop receiving portion 114
3 has a presser jaw 122 for pressing, and a tightening bolt 12 for fixing the hoop clamp main body 120 by being screwed to a through screw portion 126 (see FIG. 14) of the hoop clamp main body at the rear portion.
5 is included. As shown in FIGS. 14 and 15, the holding jaw 122 is held by a shaft 123 so as to be rotatable in the front-rear direction. In the figure, reference numeral 100 is a bass drum, 101 is a drum barrel, and 102 is a drum head. Further, regarding the drum pedal 110, reference numeral 111 is a pedal plate, 112 is a pillar, 115 is a rotating shaft bridged over the pillar 112, 116 is a beater attached to the rotating shaft, and 117 is a vertical movement of the pedal plate 111. This is a chain member that rotates the moving shaft 115.

By the way, in the bass drum, for example, like the hoop 106 shown in FIG. 14, in order to prevent the hoop from being damaged when the hoop clamp body 120 is engaged, the hoop body 106A. In some cases, a protection member 106B such as a rubber sheet is attached. Such a hoop 106 has a large wall thickness, and the clamp amount of the hoop clamp body is large. On the other hand, there are many bass drums made of thin hoops such as the hoop 107 shown in FIG. 15. In this case, the hoop 107 has a considerably thin wall thickness.
The clamp amount of the hoop clamp body 120 is naturally small.

In the conventional hoop holding device, the amount of clamping of the hoop clamp body 120 is not originally planned to be so large, and the thick hoop 106 to which the above-mentioned protective member 106B is attached and the thin hoop made of metal. 10
It was difficult to completely clamp both 7's. Further, as is well understood from the tightening position state of the tightening bolt 125 of FIGS. 14 and 15, in order to increase the hoop clamp amount, the tightening bolt 125 must be lengthened. However, if the tightening bolt 125 is lengthened, it may hit the pedal plate 111, resulting in poor operability. It also doesn't look good.

Further, as shown in FIG. 13, the bass drum 100 is normally set with its front side (the side opposite to the drum pedal 110) slightly raised (reclined). The backward tilted state is large or small depending on the player's preference, but in the backward tilted state of the bass drum, the hoop 103 is also tilted, and the tilted hoop 103 is flattened by the flat hoop receiving portion 114 and the hoop clamp body 120. When clamped between and, the hoop experiences a twisting phenomenon.
As the inclination of the bass drum 100 increases, the hoop 103
The tip of the column base 113 is lifted up in a state of being clamped, and the hoop 103 may be bent or cracked if the performance is continued as it is. Drum pedal 1
The base plate 118 of 00 bends.

Further, the conventional hoop pressing device is arranged directly below the pedal plate 111 at the center of the front surface of the drum pedal 100 so as to face the front surface of the bass drum. Therefore, when adjusting the hoop pressing device, it is necessary to turn the hand into a narrow space under the pedal plate 111 and operate the adjusting bolt 125 in a groping state, which is cumbersome, poor in workability, and cannot be firmly tightened. There is also. Further, the installation space of the hoop pressing device is limited in relation to the operation of the pedal plate 111, so that its design is restricted.

[0007]

DISCLOSURE OF THE INVENTION The invention disclosed herein has been proposed in order to solve various problems of the hoop holding device for a drum pedal as described above, and the thickness of the drum hoop. It provides a device that can be reliably clamped regardless of its size and has good operability.

[0008]

That is, according to the invention of claim 1, a drum hoop is provided at a front portion of a hoop clamp main body supported by a support base of a drum pedal, between a hoop receiving portion at the front portion of the support base. In a device having a presser jaw for pressing, and a fastening bolt for fixing the hoop clamp main body by being screwed to a through screw part of the hoop clamp main body at a rear portion, the presser foot located in the front-back direction of the hoop clamp main body.
A seat portion having a concave and convex curved surface portion in the front-rear direction and a through holding hole penetrating the seat portion are formed in a substantially intermediate portion between the jaw and the through screw portion, and a support bolt penetrating the through holding hole is formed in the column base. A spring member that constantly urges the seat portion upward is interposed between the back side of the seat portion and the pillar base, and the support is erected so as to pass through the penetrating holding hole. the adjustment nut having a convex curved portion that is fitted to the concave surface portion of the seat which is biased by the spring member screwed to the bolt, before
The hoop clamp body is front and rear with respect to the support bolt.
The present invention relates to a hoop holding device for a drum pedal, characterized in that the position of the hoop can be adjusted in any direction .

Further, the invention of claim 2 is characterized in that the hoop receiving portion is formed with an inclined holding portion made of an elastic body having an inclined surface portion in which the right and left outer sides are sequentially increased and the rear side is lowered. The present invention relates to a hoop holding device for a drum pedal according to claim 1 .

[0010] The invention according to claim 3, wherein the front of the hoop clamp body located in said post base front, characterized in that the rear are arranged so as to be positioned in the pedal plate outside the strut base rear The present invention relates to the hoop holding device for a drum pedal according to Item 1 or 2 .

Further, in the invention of claim 4, the hoop clamp body is provided with a pedal plate of the hoop clamp body .
The drum pedal according to any one of claims 1 to 3 , wherein a detent portion that restricts downward movement is formed, and a locking portion that engages with the detent portion is provided on the column base. Related to the hoop presser device.

[0012]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a side view showing a part of a drum pedal having a hoop holding device for a drum pedal of the present invention in section, FIG. 2 is a top view thereof, and FIG. 3 is an enlarged sectional view showing a state in which a front part of a hoop clamp body is lifted. 4 and 5 are enlarged cross-sectional views showing a state in which the rear part of the hoop clamp body is also lifted, FIG. 5 is a cross-sectional view of a hoop holding device in a state of clamping a large-thickness hoop, and FIG. Is a cross-sectional view of the hoop holding device, FIG. 7 is a cross-sectional view of the hoop holding device viewed from the front side in the state of clamping the hoop in the backward tilted state, and FIG. 8 is a cross-sectional view of the hoop holding device viewed from the side. is there.

9 to 12 relate to parts of the hoop holding device of the present invention. FIG. 9 is a top view of the hoop clamp body, FIG. 10 is a view showing an adjusting nut, and FIG. 11 is a tilt holding part of a hoop receiving part. FIG. 12 is a cross-sectional view showing the front-back and left-right movement of the hoop presser jaw.

The bass drum 100 shown in FIG. 1 has the same structure as that described with reference to FIG. 13 attached in the section of the prior art. Reference numeral 101 is a drum barrel, 102 is a drum head, and 103 is a drum hoop. is there. Further, the illustrated drum pedal device 20 itself is a conventionally known device, and is denoted by reference numeral 2.
1 is a pedal plate, 22 is a support, 23 is the support 23
Is a standing column base, 24 is a hoop receiving portion at the front of the column base 23, 25 is a rotation shaft spanned by the columns 23, 26 is a beater attached to the rotation shaft 25, and 27 is It is a chain member that rotates the rotating shaft 25 by the vertical movement of the pedal plate 21.

As shown in the figure, the hoop pressing device of the present invention has a hoop clamp main body 30 supported by a column base 23 of the drum pedal 20 and a hoop receiving portion 24 at the front of the column base 23. It has a presser jaw 60 for pressing the drum hoop 103, and a hoop clamp body 3 at the rear.
The present invention relates to a device having a tightening bolt 90 that is screwed to a through thread portion 31 (see FIG. 3) of 0 to fix the hoop clamp body 30.

First, the invention of claim 1 will be described. The invention of claim 1 relates to a support structure for the hoop clamp body 30 of the hoop holding device. That is, FIG.
As well understood from the cross-sectional view of FIG. 4 and the top view of the hoop clamp body 30 of FIG. 9, the holding jaw 60 and the through screw located in the front-back direction of the hoop clamp body 30 are well understood.
A seat portion 32 having a concave-and-convex curved surface portion 33 in the front-rear direction and a through-holding hole 34 penetrating the seat portion 32 are formed substantially in the middle of the portion 31 . Then, as shown in FIG. 3, a support bolt 35 penetrating the penetrating holding hole 34 is erected on the support base 23, and the seat 32 is provided between the back side of the seat 32 and the support base 23. A spring member 36 for constantly urging the above is interposed. Reference numeral 37 in FIG. 3 is a mounting nut for fixing the support bolt 35 to the column base 23.
A spring receiving portion 37 a for the spring member 36 is formed at 7.

An adjustment nut 40 is screwed onto the support bolt 35. The adjustment nut 40 is attached to the support bolt 35 as shown in the front view (10A), side view (10B), bottom view (10C) and cross-sectional view (10D) taken along the line DD of FIG. It has an inner threaded portion 41 to be screwed and is provided with a convex curved surface portion 42 that is fitted into the concave curved surface portion 33 of the hoop clamp seat portion 32 biased by the spring member 36. The convex curved surface portion 42 of the adjusting nut 40 is formed as a linear protrusion as shown in the drawing, and is fitted to the concave curved surface portion 33 of the groove-shaped hoop clamp seat portion 32 every half rotation thereof. . Reference numeral 43 in FIG. 10 represents a rotary knob portion of the adjusting nut 40.

[0018] As on, the front-rear direction of the concave surface portion 33 of the hoop clamp seat 32, the adjusting nut 40 having a convex curved surface portion 42 which is fitted in the concave portions 33, the full
The position of the clamp body 30 is adjusted by the support bolt 35.
The angle can be freely set in the front-back direction. Figure 3
Is a cross-sectional view of the front portion of the hoop clamp body 30 lifted as indicated by the arrow u1 and FIG. 4 is a cross-sectional view of the rear portion of the hoop clamp body 30 lifted as indicated by the arrow u2. Even in this state, the adjusting nut 40 is in close contact with the hoop clamp seat portion 32.

5 and 6 show a hoop 1 having a large thickness.
FIG. 7 is a cross-sectional view of the hoop holding device in a state where 03A is clamped (FIG. 5) and a hoop 103B having a small thickness is clamped (FIG. 6). As can be seen from both figures, even when the thicknesses of the hoops 103A and 103B to be clamped are greatly different, the adjustment nut 4 for the support bolt 35 is not provided.
If the position of 0 is changed, the hoop clamp main body 30 can adjust its position in the front-rear direction with respect to the support bolt 35 freely.
0 There is little fluctuation in the vertical position of the rear part. As a result, it is not necessary to increase the bolt length of the tightening bolt 90 that is screwed into the penetrating screw portion 31 at the rear part of the hoop clamp body 30, and the tightening can be surely performed and the operability is improved.

Next, the invention of claim 2 will be described.
The invention of claim 2 relates to the structure of the hoop receiving portion of the hoop pressing device. As described above, in this hoop holding device, the hoop 103 of the drum is clamped between the holding jaw 60 at the front part of the hoop clamp body 30 and the hoop receiving portion 24 at the front part of the column base 23. As described in the section of the prior art, the bass drum is often set in a rearward tilted state, and in this case, the hoop 103 may be twisted during clamping, which may cause deformation or damage of the hoop 103 and the base plate 28. is there.

In order to avoid the above problems, the hoop receiving portion 24 is provided with an inclined holding portion 50. As shown in each of FIG. 3 and FIG. 11, the tilt holding portion 50 according to the invention of claim 2 is formed of an elastic body having tilted surface portions 51 and 52 in which the right and left outer sides are successively higher and the rear side is lower. It 11 is a rear view (11A) and a top view (11A).
As is well understood from B) and the cross-sectional view (11C), the left and right sides of the central lower portion 53 of the tilt holding portion 50 integrally formed of an elastic body such as rubber or plastic are sequentially raised toward the outside. Further, it has a left-side inclined surface portion 51 and a right-side inclined surface portion 52, each of which is a tapered surface whose rear side is lowered. Reference numeral f in each drawing of FIG. 11 indicates the front side (drum side)
Where r represents the rear side (pedal side), and the symbols a and b represent the inclination direction (from the higher side to the lower side). Incidentally, reference numeral 55 is a mounting leg portion for mounting the tilt holding portion 50 on the hoop receiving portion 24 of the column base 23.

FIG. 7 is a sectional view of the hoop holding device viewed from the front side in a state where the hoop in the backward tilted state is clamped, and FIG. 8 is a sectional view of the hoop holding device viewed from the side. As shown in the figure, the drum hoop 103C is tilted backward.
However, the drum hoop 103C can be firmly clamped in the rearwardly tilted state by the tilt holding portion 50 formed of an elastic body, so that the hoop 103C will not be twisted and the hoop and the base will not be twisted. The possibility of causing deformation or damage to the plate is eliminated. As can be seen from the drawings of FIGS. 7 and 8, in this example, the holding jaw 60 at the front part of the hoop clamp main body 30 is attached via the shaft portion 61 so as to be movable back and forth and left and right, and the tilt holding is performed. Part 50
The drum hoop is securely clamped in combination with the above configuration.

Explaining the structure of the presser jaw 60, as shown in the sectional views of FIG. 12, the presser jaw 60 is held in the lower part of the front part of the hoop clamp body 30 via a shaft portion 61. A spherical recess 39 is formed in the lower part of the front part of the hoop clamp body 30, and the upper surface of the pressing jaw 60 is formed in the spherical recess 39.
Is formed on a spherical surface 62 that is in close contact with. Also, presser jaw 6
The shaft hole 63 through which the shaft portion 61 of 0 has a central portion of the shaft hole 63 formed by a circular portion 64 in which the shaft portion 61 is rotatable. It is constituted by elongated hole portions 65, 65 that sequentially expand in the vertical direction toward both sides. By constructing the presser jaw 60 as above, the presser jaw 60 is attached to the hoop clamp body 30.
(12A) and (12B) in the figure, and can be tilted in the left-right direction of the hoop clamp body 30 as shown in (12C) and (12D). As a result, the pressing jaw 60 can be reliably pressed against the curved surface and the inclination of the drum hoop.

Next, the invention of claim 3 will be described.
The invention of claim 3 relates to the arrangement of the hoop clamp main body, and as can be seen from the top view of FIG. 2, the front portion 30F of the hoop clamp main body 30 is located at the front portion of the column base 23, and the rear portion 30R thereof is the column base 23. It is characterized in that it is arranged outside the rear pedal plate 21.

As described in the section of the prior art, a structure for pressing the drum hoop between the holding jaw at the front part of the hoop clamp body supported by the column base of the drum pedal and the hoop receiving part at the front part of the column base. In the hoop presser device, the rear part of the hoop clamp body is located directly below the drum pedal, and when adjusting it, you have to turn your hand into a narrow space directly below the drum pedal and operate the adjustment bolt while searching. It was Therefore, not only the adjusting operation of the hoop pressing device is extremely complicated, but also the installation space is limited, so that the mechanical or design cannot be freely designed.

On the other hand, according to the present invention, the front portion 30F of the hoop clamp main body 30 has the strut base 23 as usual.
Since the hoop clamp function can be ensured at the front part and the rear part 30R of the hoop clamp body 30 is arranged outside the pedal plate 21 at the rear part of the support base 23, the adjusting bolt is provided. The adjustment operation of 90 can be performed easily, easily and surely, and the installation space is not limited, so that mechanical or design can be freely designed.

Incidentally, a little supplementary description will be made here when the hoop clamp main body 30 is arranged so that its front portion 30F is located at the front portion of the column base 23 and its rear portion is located outside the pedal plate 21 at the rear portion of the column base 23. The shape of the hoop clamp body 30 may be bent in the plane direction. At this time, there is a concern that the tightening force by the tightening bolt 90 at the rear of the hoop clamp body 30 may not be sufficiently transmitted to the front. However, the hoop clamp body 30
Is provided with a seat portion 32 having a front and rear concave curved surface portion 33, and the seat portion 32 is constantly urged upward by a spring member 36,
With respect to the support bolt 35 penetrating the seat 32, the seat 3
By screwing the adjusting nut 40 having the convex curved surface portion 42 that fits into the concave curved surface portion 33 of No. 2, even if the hoop clamp main body 30 is bent, the tightening force by the tightening bolt 90 is the same as that of the hoop clamp main body 30. Can be effectively transmitted to the front.

As shown in FIGS. 2 and 3, the invention of claim 4 further comprises a detent portion for restricting the movement of the hoop clamp body 30 to the lower side of the pedal plate 21 in the hoop clamp body 30. 70 is formed, and a locking portion 75 that engages with the rotation stopping portion 70 is formed on the pillar base 23.
Is provided. In the illustrated embodiment, the rotation stopping portion 70 is formed of a rotation preventing hole and the locking portion 75 is formed of a pin. In addition, the rotation stopper 70 is the hoop clamp body 3
For the adjustment operation of 0, as shown in FIG. 3, it is formed as a long hole portion in the front-rear direction and a tapered hole that widens downward.

The detent portion 70 and the locking portion 75 prevent the hoop clamp body 30 from moving (crawling) to the lower side of the pedal plate 21 due to vibration, contact, or the like, so that the performance operation can be performed with peace of mind. it can. In this case, as shown in the figure, the hoop receiving portion of the column base 23 is the tilt holding portion 50 having the inclined surface portions 51 and 52 in which the left and right outer sides are sequentially higher and the rear side is lower, which is the invention of claim 2. 24 is preferable.

[0030]

As shown and described above, according to the hoop pressing device for a drum pedal of the present invention, various problems of the conventional bass drum can be solved. That is, the invention of claim 1 can provide a device that can be reliably clamped regardless of the size of the drum hoop, does not require a long tightening bolt, and has good operability. Further, the invention of claim 2 provides a hoop holding device which can be reliably clamped even when the bass drum is set in a rearwardly inclined state and which does not damage the hoop or the base of the drum pedal.

According to the third aspect of the present invention, when adjusting, it is possible to easily, easily and surely operate without turning the hand into a narrow space just below the pedal plate and operating the adjusting bolt in a groping state, and the installation space is limited. (EN) Provided is a hoop holding device which can be designed mechanically or mechanically without any design. Furthermore, according to the invention of claim 4 , the drum hoop can be reliably clamped regardless of the thickness of the drum hoop, the adjustment bolt can be operated easily, easily and surely, and the installation space is not limited. Provided is a hoop holding structure that can be freely designed in terms of design or design.

[Brief description of drawings]

FIG. 1 is a cross-sectional side view of a part of a drum pedal having a drum pedal hoop pressing device of the present invention.

FIG. 2 is a top view thereof.

FIG. 3 is an enlarged cross-sectional view of a state where a front portion of the hoop clamp body is lifted.

FIG. 4 is an enlarged cross-sectional view of a state where the rear portion of the hoop clamp body is also lifted.

FIG. 5 is a cross-sectional view of the hoop holding device in a state where a hoop having a large thickness is clamped.

FIG. 6 is a cross-sectional view of the hoop holding device in a state where a hoop having a small thickness is clamped.

FIG. 7 is a cross-sectional view of the hoop holding device viewed from the front side in a state of clamping the hoop in a backward tilted state.

FIG. 8 is a sectional view of the hoop holding device as seen from the side surface side thereof.

FIG. 9 is a top view of the hoop clamp body.

FIG. 10 is a view showing an adjustment nut.

FIG. 11 is a diagram showing each of the inclined holding portions of the hoop receiving portion.

FIG. 12 is a cross-sectional view showing a front-back, left-right movement state of a hoop pressing jaw.

FIG. 13 is a partially cutaway side view showing a conventional hoop holding structure for a drum pedal.

FIG. 14 is a cross-sectional view of a conventional device in a state in which a hoop having a large thickness is clamped.

FIG. 15 is a cross-sectional view of the conventional device in a state where the hoop having a small thickness is also clamped.

[Explanation of symbols]

20 drum pedal 21 pedal plate 22 props 23 Strut base 24 hoop receiver 26 beater 30 hoop clamp body 31 Penetration screw part 32 seat 33 Concave curved surface 34 Through hole 35 Support bolt 36 Spring member 40 Adjustment nut 42 Convex curved surface 50 Inclined holding part 51,52 Inclined surface part 60 Presser jaw 61 Shaft 62 spherical surface 63 shaft hole 65 long hole 70 Detent 75 Locking part 90 Tightening bolt 100 bass drum 102 drum head 103 hoops

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Claims (4)

(57) [Claims] 1. A hoop clamp main body supported by a strut base of a drum pedal has a holding jaw for pressing a drum hoop between a hoop receiving portion at the front of the strut base and a hoop clamp at a rear portion. In a device having a tightening bolt that is screwed to a threaded portion of the main body to fix the hoop clamp body, a holding jaw located in the front-back direction of the hoop clamp body,
A seat portion having a concave and convex curved surface portion in the front-rear direction and a penetrating holding hole penetrating the seat portion are formed at a substantially intermediate portion of the penetrating screw portion, and a support bolt penetrating the penetrating holding hole is erected on the column base. In addition, a spring member that constantly biases the seat portion upward is interposed between the back surface side of the seat portion and the strut base, and a support bolt erected upright through the penetrating holding hole. the adjustment nut having a convex curved portion that is fitted to the concave surface portion of the seat which is biased by screwing to the spring member, the
The hoop clamp body is in the front-back direction with respect to the support bolt.
A hoop holding device for a drum pedal, characterized in that the position of the hoop can be freely adjusted . To wherein said hoop receiving portion, wherein, wherein the inclined holding portion and rear left and right outside is sequentially increased is made of an elastic body having an inclined surface which becomes lower is formed
Item 1. A hoop holding device for a drum pedal according to Item 1 . Wherein the front portion of the hoop clamp body located in said post base front to claim 1 or 2 rear is characterized in that it is arranged to be positioned in the pedal plate outside the strut base rear Hoop holding device for the drum pedal described . 4. A detent portion for restricting movement of the hoop clamp body to the lower side of the pedal plate is formed on the hoop clamp body, and a locking portion for engaging with the detent portion is formed on the column base. Claims 1 to 3 provided
The hoop pressing device for the drum pedal according to item 1 .