A keyboard instrument stand for a keyboard instrument set includes a leg portion configured to support a keyboard instrument, a pedal device, and a pedal frame configured to fix the pedal device of which at least a part is disposed further backwards than a backmost end portion in a short direction of the keyboard instrument.

A key for a keyboard device includes a resin key body and one or a plurality of woody boards attached along at least part of a pair of side portions of the key body. The key body includes an upper portion protrusion which extends along an upper end of each of the side portions and is formed continuous with the top portion, the upper portion protrusion protruding in a lateral direction of the key body. Each woody board is disposed such that an upper end surface thereof is in contact with a lower surface of the upper portion protrusion. The upper portion protrusion has a thickness dimension in a vertical direction smaller than a thickness dimension of the top portion of the key body.

A spring keyboard is disclosed. The spring keyboard includes a key support (1) and multiple keys (2) disposed on the key support (1), A back end of a key (2) is connected with the key support (1) through a spring (3). The key support (1) includes a first rotary structure (41). The key (2) includes a second rotary structure (42) matched with the first rotary structure (41), and the key (2) can rotate up and down around the first rotary structure (41). The key support (1) further includes a limit seat (51), and the key (2) further includes a limit reverse buckle (52) matched with the limit seat (51). The limit reverse buckle (52) faces towards a front end of the one of the keys (2). The structure of the spring keyboard is reliable, effectively eliminating the hidden danger of disconnecting the key (2) from the key support (1).

A spring keyboard is disclosed. The spring keyboard includes a key support (1) and multiple keys (2) disposed on the key support (1), A back end of a key (2) is connected with the key support (1) through a spring (3). The key support (1) includes a first rotary structure (41). The key (2) includes a second rotary structure (42) matched with the first rotary structure (41), and the key (2) can rotate up and down around the first rotary structure (41). The key support (1) further includes a limit seat (51), and the key (2) further includes a limit reverse buckle (52) matched with the limit seat (51). The limit reverse buckle (52) faces towards a front end of the one of the keys (2). The structure of the spring keyboard is reliable, effectively eliminating the hidden danger of disconnecting the key (2) from the key support (1).

Provided is a keyboard device for which the number of parts can be reduced. The present invention is provided with: hammers rotatably linked to a chassis; keys rotatably linked to the hammer thereof; guiding pins provided to the keys and extending in the widthwise direction of the keys; and a guiding groove provided to the chassis side and into which the guiding pins are inserted. The downward displacement of the front-end sides of the keys is guided by the rotation of the hammers with respect to the chassis, and the downward displacement of rear-end parts of the keys is guided by the sliding of the guiding pins with respect to the guiding groove. This eliminates the need for links to guide the displacement of the rear-end parts of the keys, thus allowing the number of parts to be reduced.

Provided is a keyboard device for which the number of parts can be reduced. The present invention is provided with: hammers rotatably linked to a chassis; keys rotatably linked to the hammer thereof; guiding pins provided to the keys and extending in the widthwise direction of the keys; and a guiding groove provided to the chassis side and into which the guiding pins are inserted. The downward displacement of the front-end sides of the keys is guided by the rotation of the hammers with respect to the chassis, and the downward displacement of rear-end parts of the keys is guided by the sliding of the guiding pins with respect to the guiding groove. This eliminates the need for links to guide the displacement of the rear-end parts of the keys, thus allowing the number of parts to be reduced.

Provided is a keyboard device that can suppress a reduction in the operability of a key. A rear guiding member comprises a pair of guiding surfaces that, in a side view of a key, face forward and rearward and are formed along an arc that is convex toward the front. The key comprises a pair of sliding surfaces that slide against the pair of guiding surfaces. Due to this sliding of the guiding surfaces and the sliding surfaces, rotation of the key can be guided while displacement of the key in the front-rear direction is regulated. Consequently, because forward and rearward displacement of the key during key pressing can be suppressed, a reduction in operability (feeling of touch) during pressing of the key can be suppressed.

Provided is a keyboard device that can suppress a reduction in the operability of a key. A rear guiding member comprises a pair of guiding surfaces that, in a side view of a key, face forward and rearward and are formed along an arc that is convex toward the front. The key comprises a pair of sliding surfaces that slide against the pair of guiding surfaces. Due to this sliding of the guiding surfaces and the sliding surfaces, rotation of the key can be guided while displacement of the key in the front-rear direction is regulated. Consequently, because forward and rearward displacement of the key during key pressing can be suppressed, a reduction in operability (feeling of touch) during pressing of the key can be suppressed.

An operation detection device for a key operation of a keyboard device includes a conductive unit configured to be disposed on each of keys, a substrate configured to be disposed facing each of the keys in a pressing direction of the keys. The substrate is provided with a sensor including at least first and second coils, the sensor being configured to be disposed spaced from one key so that at least one of the first or second coil outputs a signal corresponding to a distance between the one key and the respective sensor. The operation detection device includes a detection unit configured to detect a displacement of the one key in at least one of a yaw direction or a roll direction based on signals output from the first and second coils during a key pressing stroke of the one key.