EP1237145B1 - Pedal device for a bass-drum - Google Patents

Description

The invention relates to a pedal machine for percussion instruments with a bearing pedestal with upwardly extending columns with bearings in which at least one flail is pivotally held by at least one shaft and against a restoring force by means of a pedal operable actuating mechanism is movable, wherein the bearing base is formed in several parts with detachable, each independently mounted columns and comprises a bottom plate on which the columns are detachably mounted.

Such a foot machine, which serves to transfer the drummer's footstep quickly and precisely to the percussion instrument, in particular a bass drum, has become known from US-A-1804128.

An example from DE 33 27 687 C2 known foot machine has a foot with thereof towering uprights, which hold in their upper ends, for example via rolling bearings, a horizontal shaft. On this shaft non-rotatably seated a sprocket and a clamping head, in which the mallet is held over the lower end of a shaft, wherein at the upper end of the shaft, the shock pad is attached. The front end of a pedal engages via a bearing pin at one end of a link chain, which is partially wrapped around the sprocket, and thus actuates the wave and thus the Schlegelbewegung.

From US 5,421,235 a double-foot machine for a bass drum is known which comprises a one-piece bearing base or a yoke with two bearing columns, each receiving a bearing. Attached to a pillar is an arm which extends laterally from and then upwardly of this pillar and comprises a housing member having a third bearing consisting of two bearing members. There are two shafts provided, which are each held by at least one of the bearings and which are independently rotatable and thus can independently move two flails.

The bearing base of the known from US 5,421,235 Fußmaschine is integrally formed with two bearing columns. Such a bearing base is usually made by casting in one piece. Different types of foot machines require different bearing base and thus each different casting tools.

The invention has the object of developing a pedestrian to the effect that their production is simplified.

This object is achieved in that the bearing base by selecting the type and number of base plates and by selecting the type, the number and the arrangement of the columns is individually assembled, which allows all variants for both the manufacturer and for the drummer.

Starting from a set of basic elements, namely base plate and columns, different types of pedals can be made in a fast manner. As a base plate is for example a plate in question, which also takes the pedal with, or just a short bearing base foot.

Overall, this makes the production of different types of pedals much easier, since the production is no longer dependent on fork systems with a predetermined column spacing.

In addition, there is a high degree of flexibility with respect to the points of attack of the mechanical parts in various types of pedals, such as double-foot machines. While a one-piece molded bearing base always has only the same distance between the columns, in a multi-part bearing base with independently mounted columns, which have been produced individually, the distances during assembly can be optionally determined differently. Thus, in a double-foot machine, the mechanics must not be adapted to a predetermined - no longer changing - basic system, but it is arranged according to the reverse principle, the columns and their arrangement to each other according to the particular type of pedestal or as a function of the necessary accessory mechanics ,

In the nature of the bottom plate also their state of manufacture flows. It is recommended to provide the bottom plate in the manufacture of the pedestal with several holes for mounting the columns, so that even the drummer itself can change the arrangement of the columns and consequently the mechanics.

For releasably securing the columns on the bottom plate screw or plug-screw connections known type recommend.

According to a further preferred embodiment, spaced apart from the longitudinal axis on two columns a cross member is arranged, which extends between the columns and is arranged on the at least one additional bearing element with at least one additional bearing along the shaft longitudinal axis for supporting a shaft or a plurality of waves. The cross member serves as a mounting rod for the respective bearing elements. Here, the respective bearing element is locked on the one hand to the cross member and on the other hand with a bearing, preferably a roller bearing and here preferably a ball bearing, provided.

This makes it possible to equip a pedestrian machine, starting from a basic construction next to the equipment with only one shaft, which optionally via an additional bearing element an intermediate support, with several independently supported and rotatable shafts and thus with several independently operating flails. About the feature of the proposed additional storage, the invention provides the ability to vary by selecting the type and number of bearing elements, the number of waves and thus the number of flails. In continuation of the idea of an individual assembly of a pedestal are thus the cross member and the bearing elements in addition to the bottom plate and the pillars more basic components.

The split-wave solution provides the advantage, in particular in a double-foot machine or double-action mechanism, that it is possible to divert both the left and the right side independently of one another, which makes the foot machine independent of the preferred play side of the drummer.

It is recommended to choose a cross member with a polygonal cross-section, preferably a polygonal rod. As a particularly preferred embodiment, a hexagonal rod is to be used. This angular geometry makes it possible that the bearing element is secured with a recess corresponding to the geometry positionally secure to the cross member. When building the pedematic Then, one of the desired number of bearing elements suitably prepared polygonal bar between the upwardly extending columns is arranged.

The invention allows the arrangement of any number of bearing elements and thus of shafts, which can be operated in each case via the same or different type of Betätigungsmechanismusses and thus can pivot any number of flails. In addition, the invention is not limited to the arrangement of two shafts. Finally, the number of waves is adjusted according to the number of desired flails and the pedals for their operation. Of course it is also possible to connect more than one mallet with a wave.

According to the feature of claim 4, each shaft is mounted at least in one of the additional bearing elements. After the training according to claim 5, it is proposed to form the additional bearing element as a double bearing to receive the two ends of adjacent waves.

Each shaft is movable by means of a separate actuating mechanism. As actuating mechanisms all known types come into question. It is particularly recommended a belt drive, which also includes a cooperating means of a traction rod connecting rod, a chain drive or a rod drive. In a belt drive, a reinforced plastic band is preferably used as a traction device; this reinforcement is achieved, for example, by means of an integrated steel wire mesh or by means of an integrated second plastic, such as nylon. In a chain drive, in particular, the use of a toothed roller chain, which runs over a sprocket is recommended. To prevent a disturbing noise when running from metal to metal, the sprocket is preferably padded. The actuating mechanisms are operated by means of a separate pedal or by means of a two-part pedal. So For example, a multiple-foot machine with two or possibly more flails, which are operated by two or possibly more separate pedals, be made available or a pedal with two mallets, which is operated by a two-part pedal.

Fig. 1

eine Schrägansicht einer Fußmaschine für Perkussions-Musikinstrumente;

Fig. 2

eine Schnittansicht des oberen Bereichs der Fußmaschine nach Fig. 1 zur Darstellung der Wellenlagerung und Wellenantriebe;

Fig. 3

eine seitliche Detailansicht der Fußmaschine nach Fig. 1 zur Verdeutlichung des oberen Lagers der Rückstellfeder;

Fig. 4

eine seitliche Detailansicht der Fußmaschine nach Fig. 1 zur Verdeutlichung des unteren Lagers der Rückstellfeder.

Further details and advantages of the invention will become apparent from the dependent claims and from the following description in which the embodiments of the invention shown in the figures are explained in more detail. In addition to the combinations of features listed above, features alone or in other combinations are essential to the invention. Show it:

Fig. 1

an oblique view of a pedal machine for percussion musical instruments;

Fig. 2

a sectional view of the upper portion of the Fußmaschine of Figure 1 showing the shaft bearing and shaft drives ..;

Fig. 3

a side detail view of the foot machine of Figure 1 to illustrate the upper bearing of the return spring ..;

Fig. 4

a side detail view of the foot machine of FIG. 1 to illustrate the lower bearing of the return spring.

In the embodiment of a pedal machine for percussion musical instruments shown in Fig. 1 is a pedestrian 1 with two mallets 2, 3, which are operated via a two-part pedal 4 with two different actuating mechanisms 5, 6. The bearing pedestal 7 of the pedal machine 1 comprises a bottom plate 8, to which at its pointing to the bass drum D end 8a two upwards, from the bottom plate 8 at right angles extending columns 9, 10 are detachably mounted. While the flail 2 on the front pedal part 4a and above this with a cooperating with a reinforced plastic belt 11 Connecting rod 12, which is arranged on a first shaft 13 via a bushing 65 (see Fig. 2) is operated, the flail 3 via the rear pedal part 4 b by means of a rod drive 14 which sets a second shaft 15 in a rotational movement, served.

Clamping heads 16, 17, in which the flails 2, 3 are held over the lower end of a shank 18, 19, are arranged on both independently operating shafts 13, 15 via jacks 67 and 66 (see FIG is, wherein at the upper end of the shock pad 20, 21 is arranged.

For storage of not held by the two columns 9 and 10 ends of the two shafts 13, 15, two bearing elements 22, 23 or support blocks are provided. These are connected via a corresponding recess 24 (see Fig. 3) at its one end 22a, 23a with a cross member 25 and with a crossbar, here in the form of a hexagonal bar connected to the parallel and vertically spaced below the shaft longitudinal axis the columns 9, 10 is mounted by means of screw 40, 39 and extends between them.

The two bearing elements 22, 23 take at its other end 26 b, 26 a roller bearing 28, 27 for the shafts 13 and 15. The outer ends 29, 30 of both shafts are rotatably connected to a connecting rod 31, 32, respectively, which is in operative connection with a return spring 33, 34, which is pivotally attached to the lower end of a column 10, 9.

With the aid of Figures 1 and 2, the construction of a pedestrian with respect to the basic elements and variable design will now be explained. The basic elements base plate 8 and columns 9, 10 form the bearing base 7. These columns 9, 10 consist essentially of a respective strut 9a, 10a and a receiving element 9b, 10b for a rolling bearing 36, 35, here ball bearings together to the outer Shaft ends 30, 29 to hold. In order to create an abutment for the respective other or here inner shaft ends 38, 37, the two additional rolling bearings 27, 28 are provided. These are part of the two bearing elements 23, 22 which are secured to the cross member 25 and the hexagonal rod.

By means of a in the direction of the columns 9, 10 and approximately parallel to the bottom plate 8 extending actuating rod 41a, a push rod 41b is actuated, in turn, with a on the Shaft 15 arranged sleeve or sleeve 66 cooperates. The sleeve 66 is rotatably connected via grub screws 43, 44 with the shaft 15. The inner end 38 of this rotated by the rod drive shaft 15 is secured with a lock washer 45 in a groove against axial displacement.

The section shown on the left in FIG. 2 corresponds to the area shown on the right in FIG. The corresponding shaft 13 is rotatably connected at its inner end 37 via two setscrews 46, 47 with the sleeve 65 of the connecting rod 12, which cooperates with the toothed plastic belt 11, which cooperates with the front pedal part 4a and an outgoing from this projection 4c Active compound is. The shaft 13 to be rotated in this way is likewise supported by means of a bearing element 22 or a roller bearing 28. Between the two, the shaft 13 radially holding, bearings 28, 35 of the clamping head 16 is arranged with upwardly extending Schlegel 2.

From Fig. 2 it is clear that there are two shafts 13, 15, which are separated in the section marked with the arrow. It is clear that it is possible by the proposed construction with the aid of the cross member 25 and the bearing elements 22, 23 or corresponding number of intermediate bearings to equip the pedal with one or two or possibly more waves with corresponding actuating mechanisms.

The suspension or the storage of the respective return spring 33, 34 is illustrated with the aid of FIGS. 3 and 4, each detailfig. of Fig. 1 are. The same components are therefore provided with corresponding reference numerals. 3 and 4 each show the view of the shaft 13, the return spring bearing is now described in detail here. The bearing of the return spring 34 of the shaft 15 served by the rod drive is analog.

The return spring 33 is connected at its pointing to the shaft 13 end 48 via a suspension element 69 with a transmission element 70. The spring end 48 has an approximately semicircular ring 49 which is hooked into a first transverse bore 50 of a connecting disk 51. The connecting disk 51 has a second transverse bore 71, in which by means of a deep groove ball bearing 72, a bolt 52 is mounted, the bolt axis is parallel to the shaft axis. The suspension member 69 is composed of the connecting plate 51 and the bolt 52 together.

According to the embodiment shown, the transmission element 70 is a connecting rod 31 which is non-rotatably connected to the outer end 29 of the shaft 13. The connecting rod 31 has two hooks 53, 54, in which the suspension element 69 can be suspended. In this way, the return spring 33 in a simple and fast way from the connecting rod 31 from - or mount.

The lower end 55 of the return spring 33 (see Fig. 4) is fastened by means of an adjusting element 73 or adjusting element for the spring tension pivotally above the bearing column foot 10c. The adjusting member 73 comprises a threaded pin 56 and a receiving part 57 for the threaded pin 56, which includes a tab 60. This tab is pivotally mounted on a roller bearing 61, in particular a ball bearing, around a protruding from the foot 10c of the bearing column 10 rigid bolt 62. The adjustment of the spring tension via two Screwed nuts 63, 64 on the threaded pin 56. In the head of the threaded pin 56, a bore 59 is introduced, in which a ring 58 is mounted on the lower part of the spring 33.

Essential to the invention is the design of the pedestrian with independent columns 9, 10, which are detachably mounted on the bottom plate 8 and no longer exist as a one-piece cast fork system. The possibility of attaching the columns 9, 10 to the bottom plate 8 by means of a plug-in screw Fig. 1. In a bore at the foot 9c, 10c (hidden) of the respective columns 9, 10 is perpendicular to the column axis a bolt 68 with a thread inserted, wherein a screw which is inserted through a corresponding hole in the bottom plate 8 in the hollow column foot, with which the bolt engages and is locked.

Claims (8)

1. A foot machine (1) for percussion instruments with a bearing base (7) with upward extending columns (9, 10) with bearings (35, 35), in which at least one mallet (3, 2) is retained by means of a shaft (15, 13) so that it can be swivelled and can be moved against a readjusting force by means of an actuating mechanism (5, 6) that can be operated by a pedal (4), wherein the bearing base (7) is designed in several sections with detachably, separately assembled columns (9, 10) and comprises a base plate (8) on which the columns (9, 10) are detachably assembled,
   characterised in that
   the bearing base (7) can be individually composed by selecting the type of base plate (8) and the type, arrangement and number of columns (9, 10).
2. The foot machine according to Claim 1,
   characterised in that
   a cross member (25) is detachably arranged at a certain distance from the longitudinal shaft axis on two columns (9, 10), which cross member extends between the columns (9, 10) and on which at least additional support element (22, 23) with at least one additional bearing (28, 27) is arranged along the longitudinal shaft axis for supporting one or more shafts (13, 15).
3. The foot machine according to Claim 2,
   characterised in that
   the cross member (25) exhibits a polygonal cross-section.
4. The foot machine according to Claim 2 or 3,
   characterised by
   at least two shafts (13, 15), wherein each of the shafts is mounted in at least one of the additional support elements (22, 23), and wherein each shaft (13, 15) can be moved by a separate actuating mechanism (6, 5).
5. The foot machine according to Clam 4,
   characterised in that
   the support element incorporates a double bearing which receives both ends of two adjacent shafts sharing the same longitudinal axis.
6. The foot machine according to one of Claims 1 to 5,
   characterised in that
   the actuating mechanism is a belt drive, a chain drive or a rod drive (14).
7. The foot machine according to one of Claims 4 to 6,
   characterised in that
   the actuating mechanisms (5, 6) can each be operated by a separate pedal or by means of a split pedal (4).
8. The foot machine according to one of Claims 1 to 7,
   characterised
   by two shafts (13, 15) whose outer ends (29, 30) are each retained by one of the columns (10, 9), and on which a mallet (2, 3) is arranged by means of a clamping head, by a polygonal cross member (25) which is arranged on the support base (7) vertically at a certain distance from the shaft bearings, by a first support element (23) retained by the cross member (25), which element supports the first of the two shafts (15) which is actuated by the rod drive (14), at its inner end (38), and by a second support element (22) retained by the cross member (25), which element supports the second of the two shafts (13), wherein the inner end (37) of the second shaft (13) is connected to a connecting rod (12) interacting with the means of pulling and the means of pulling (4) interacts with a pedal.

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