Manual pulling instrument

Abstract

A manual pulling instrument, in particular an accordion, comprising a first housing part comprising operating elements configured to be operated by a player with one hand to generate a note. The operating elements occupy a spatial area extending to a first boundary line on a first side and to a second boundary line on a second side opposite the first side, the second boundary line is further away from the bellows than the first boundary line, and the second boundary line has a concave curvature. The spatial area occupied by the operating elements extends in a plane which encloses an angle between 20° and 65°, with a center plane which extends symmetrically with respect to the bellows between the first housing part and the second housing part when the bellows is in a folded state.

Claims

1. A manual pulling instrument, in particular an accordion, comprising: a first housing part comprising operating elements which are configured to be operated by a player of the manual pulling instrument with one hand; a second housing part; and a bellows by which the first housing part and the second housing part are movably connected to each other; wherein the operating elements occupy a spatial area extending to a first boundary line on a first side and to a second boundary line on a second side opposite the first side, wherein the second boundary line is further away from the bellows than the first boundary line, and wherein the second boundary line has a concave curvature, and wherein the spatial area occupied by the operating elements extends, at least to a first approximation, in a plane (T) which encloses an angle (α) of between 20° and 65°, preferably between 30° and 60°, with a center plane (M) of the manual pulling instrument which extends symmetrically with respect to the bellows between the first housing part and the second housing part when the bellows is in a folded state.

2. The manual pulling instrument according to claim 1, wherein the concave curvature of the second boundary line has, at least in sections, a radius of curvature (R1) that is between 15 cm and 35 cm, preferably between 20 cm and 30 cm.

3. The manual pulling instrument according to claim 1, wherein the first boundary line has a concave curvature.

4. The manual pulling instrument according to claim 3, wherein the concave curvature of the first boundary line is congruent, at least to a first approximation, with the concave curvature of the second boundary line.

5. The manual pulling instrument according to claim 1, wherein the operating elements are arranged along a plurality of concavely curved lines.

6. The manual pulling instrument according to claim 5, wherein the concave curvature of the lines is congruent, at least to a first approximation, with the concave curvature of the first boundary line and/or the second boundary line.

7. The manual pulling instrument according to claim 1, in which the first housing part has a concave curvature on a side facing away from the bellows.

8. The manual pulling instrument according to claim 7, wherein the concave curvature on the side of the first housing part facing away from the bellows is congruent, at least to a first approximation, with the concave curvature of the second boundary line.

9. The manual pulling instrument according to claim 1, in which the first housing part comprises a rear surface area configured to face the torso of the player, wherein an upper end of the spatial area occupied by the operating elements is formed further away from the rear surface area than a lower end of the spatial area.

10. The manual pulling instrument according to claim 1, in which the first housing part comprises a rear surface area configured to face the torso of the player, wherein the rear surface area is concave in shape, wherein preferably a radius of curvature (R2) of said rear surface area is, at least in sections, between 0.5 m and 3 m.

11. The manual pulling instrument according to claim 1, in which the second housing part comprises a rear surface area configured to face the torso of the player, wherein the rear surface area is concave in shape, wherein preferably a radius of curvature of said rear surface area is, at least in sections, between 0.5 m and 3 m.

12. The manual pulling instrument according to claim 1, in which the second housing part comprises further operating elements, which are arranged in particular in an indentation formed by the second housing part, wherein in particular the further operating elements occupy a further spatial area, which extends to a first boundary line on a first side and to a second boundary line on a second side opposite the first side, wherein the second boundary line is further away from the bellows than the first boundary line, wherein the second boundary line has a concave curvature and wherein the further spatial area occupied by the further operating elements extends in a further plane, which encloses a further angle of between 0° and 50°, preferably between 0° and 40°, for example between 0° and 20°, with the center plane (M) of the manual pulling instrument.

13. The manual pulling instrument according to claim 12, wherein the concave curvature of the second boundary line of the further spatial area has, at least in sections, a radius of curvature which is between 5 cm and 25 cm, preferably between 7 cm and 20 cm.

14. The manual pulling instrument according to claim 1, in which the first housing part has an outer surface configured to be opposite the torso of the player when the manual pulling instrument is held as intended, wherein the outer surface has formed therein at least one sound exit aperture configured to emit a note generated by an actuation of the bellows.

15. The manual pulling instrument according to claim 14, in which the at least one sound exit aperture is the only exit aperture of the manual pulling instrument configured to emit notes generated by an actuation of the bellows.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0089] FIG. 1 shows a schematic drawing of a manual pulling instrument according to the present application.

[0090] FIG. 2 shows a sketch of a view of the manual pulling instrument from the top in order to illustrate a plane in which a spatial area extends which is occupied by the operating elements.

[0091] FIG. 3 shows a sketch of a side view of the first housing part.

[0092] FIG. 4 shows a sketch of a side view of the second housing part.

DETAILED DESCRIPTION

[0093] FIG. 1 shows a schematic drawing of the manual pulling instrument with designations of different parts of the manual pulling instrument.

[0094] The manual pulling instrument, hereinafter also referred to as the instrument for short, comprises a first housing part 2, a second housing part 6 and a bellows 8 by which the first housing part 2 and the second housing part 6 are movably connected to each another. The first housing part 2 can be in particular a treble housing. The second housing part 6 can be in particular a bass housing.

[0095] The manual pulling instrument can further comprise a carrying strap attached to the first housing part 2, which is intended to be hung around the shoulders by the player for easier carrying the instrument.

[0096] The first housing part 2 comprises operating elements 4 configured to be operated by a player of the instrument with the right hand. The operating elements 4 can be, for example, keys or buttons or pushbuttons. The operating elements 4 occupy a spatial area which extends to a first boundary line 12 on a first side and to a second boundary line 14 on a second side opposite the first side. As revealed by the Figure, the second boundary line 14 is further away from the bellows 8 than the first boundary line 12. The first boundary line 12 adapts tangentially to an outer row of operating elements formed by part of the operating elements 4. On a side opposite this outer row of operating elements, the second boundary line 14 adapts tangentially to a further outer row of operating elements formed by a further part of the operating elements 4.

[0097] The second boundary line 14 has, at least in sections, a concave curvature. Preferably, the second boundary line 14 is concavely curved as a whole, for example uniformly concavely shaped. FIG. 3 shows a sketch of a side view of the operating elements 4 of the first housing part 2. The concave curvature of the second boundary line 14 preferably has, at least in sections, a radius of curvature R1 which is between 15 cm and 35 cm, in particular between 20 cm and 30 cm.

[0098] As indicated in FIG. 3, a lower end 44 of the spatial area occupied by the operating elements 4 preferably extends further rearwards, i.e., further in the direction of a rear surface area 26 of the first housing part 2 than an upper end 42 of the spatial area. In other words, in the case of a circular arc-shaped boundary line 14, the central or mirror axis of the circular arc would not be oriented horizontally, but (in FIG. 3) slightly downwards to the right.

[0099] FIG. 2 shows a schematic sketch of a view of the instrument from the top. The spatial area occupied by the operating elements 4 extends in a plane T which encloses an angle α of between 20° and 65°, preferably between 30° and 60°, with a center plane M of the instrument which extends symmetrically with respect to the bellows 8 between the first housing part 2 and the second housing part 6 when the bellows 8 is in a folded state. For example, the angle α can be between 35° and 55°.

[0100] As shown in particular in FIG. 1, preferably also the first boundary line 12 has a concave curvature. Preferably, the concave curvature of the first boundary line 12 is congruent, at least to a first approximation, with the concave curvature of the second boundary line 14. For example, the two boundary lines 12, 14 can have parallel curvatures.

[0101] As outlined in FIGS. 1 and 3, it can be advantageously provided that the operating elements 4 are arranged along a plurality of concavely curved lines 10. In this context, the concave curvature of the lines 10 is congruent, at least to a first approximation, with the concave curvature of the first boundary line 12 and/or the second boundary line 14. In particular, the first boundary line 14, the second boundary line 12 and/or the lines 10 can represent parallel curves. The number of lines can be, for example, between three and ten, preferably between three and seven.

[0102] Advantageously, the first housing part 2 can be concavely curved on a side facing away from or opposite the bellows 8, i.e. on a side which faces the player's right forearm when the instrument is held as intended. In this way, the accessibility of the right hand of the player to the operating elements 4 is facilitated or improved. For this purpose, this concave curvature of the first housing part 2 is preferably designed to be congruent, at least to a first approximation, with the concave curvature of the second boundary line 14.

[0103] In order to further facilitate and improve holding of the instrument, the first housing part 2 can comprise a rear surface area 26 intended to face the torso of the player, wherein the surface area 26 is concave in shape, as outlined in FIG. 3. Preferably, this surface area 26 has, at least in sections, a radius of curvature R2 which is between 0.5 m and 3 m, for example between 0.5 m and 2 m. (In FIG. 3 the radii of curvature R1, R2 are only schematically indicated).

[0104] In the example shown, the rear surface area 26 facing the torso of the player has said concave shape when viewed in a vertical section. Said curvature preferably extends over the entire vertical extension of the surface area 26, for example over at least 80%, preferably over at least 90% of the entire vertical extension of the manual pulling instrument.

[0105] It can further be provided that the rear surface area 26 of the first housing part 2 facing the body of the player has also a concave shape in a horizontal section (not shown in the Figures). This also supports easier holding of the instrument.

[0106] Holding the instrument is further facilitated if, as outlined in FIG. 4, the second housing part 2 also has a rear surface area 66 intended to face the body of the player, wherein said rear surface area 66 of the second housing part 6 is concave in shape. Again, this surface area 66 of the second housing part 6 can have, at least in sections, a radius of curvature of between 0.5 m and 3 m. In particular, the concavity can be shaped according to the concavity of the surface area 26 of the first housing part 2 facing the torso of the player.

[0107] The first housing part 2 has a “forward” facing outer surface 28, which is configured to be opposite the torso of the player when the manual pulling instrument is held as intended. Preferably, at least one sound exit aperture 32 is formed in this outer surface 28, wherein the design is such that a note generated by an actuation of the bellows 8 is emitted through the at least one sound exit opening 32. In particular, a plurality of sound exit apertures 32 can be provided. In this way, an advantageous emission of the notes generated by the instrument is achieved. In this respect, it is particularly advantageous if the at least one sound exit aperture 32 is the only exit aperture of the manual pulling instrument which is configured to emit notes generated by an actuation of the bellows 8.

[0108] Preferably, the second housing part 6 additionally comprises further operating elements 62, in particular in the form of buttons. These further operating elements 62 can be arranged in an indentation 68 formed by the second housing part 6. According to a variant (not shown in the Figures), the further operating elements 62 occupy a further spatial area, which is basically designed analogously to the first-mentioned spatial area, wherein, however, the values for the corresponding curvature and angle of the plane of the further spatial area differ from the corresponding values on the side of the first housing part.

[0109] In particular, it can be provided that the further spatial area extends to a first boundary line on a first side and to a second boundary line on a second side opposite the first side, wherein the second boundary line is further away from the bellows 8 than the first boundary line and wherein the second boundary line has a concave curvature. Preferably the concave curvature of the second boundary line has, at least in sections, a radius of curvature which is between 5 cm and 25 cm, preferably between 7 cm and 20 cm.

[0110] The plane in which the further spatial area extends preferably encloses a further angle of between 0° and 50°, in particular between 0° and 40°, for example between 0° and 30°, with the center plane M of the manual pulling instrument.

[0111] This is advantageous because in this way physiologically and ergonomically more favorable movements during play are made possible, in particular also with regard to the player's left arm. Compared to the right side, however, a further range of movement in the left shoulder must be “allowed” here, because a correspondingly further abduction in the left shoulder is absolutely necessary for opening the bellows.