초록

Disclosed herein is a music stand including, a music paper receiving frame, and a suction cup device configured to support said music paper receiving frame.

대표청구항 ▼

What is claimed is: 1. A music stand, comprising: a music paper receiving frame configured to support music paper rested thereon; and a suction cup device configured to support said music paper receiving frame, said suction cup device including a suction cup having a suction face and a rear face on

What is claimed is: 1. A music stand, comprising: a music paper receiving frame configured to support music paper rested thereon; and a suction cup device configured to support said music paper receiving frame, said suction cup device including a suction cup having a suction face and a rear face on the opposite sides along a thicknesswise direction thereof, a center shaft provided at the center of said rear face of said suction cup and extending in a direction away from said rear face along the thicknesswise direction, an attaching base having a skirt portion configured to cover said rear face of said suction cup and an outer tubular portion projecting from the center of said skirt portion and having said center shaft accommodated therein, and a displacement mechanism provided between said center shaft and said attaching base and configured to bias said center shaft and said attaching base in a direction in which, in a state wherein said suction face is attached to an attaching object face, an end of said skirt portion is pressed against said rear face of said suction cup or the end of said skirt portion is pressed against a portion of the attaching object face positioned on the outer side of said suction cup and displaces said center shaft in a direction in which said center shaft is spaced away from the attaching object face, said displacement mechanism including a lock lever coupled to an end portion of said center shaft against movement in an axial direction of said center shaft but for rotation in a circumferential direction of said center shaft between an initial position and a locked position, a coil spring disposed around said center shaft on the inner side of said outer tubular portion and anchored at one end thereof by said outer tubular portion and at the other end thereof by said lock lever in such a manner as to bias said lock lever toward the initial position and bias said outer tubular portion and said lock lever in a direction away from each other along said center shaft, and a cam mechanism provided between said outer tubular portion and said lock lever and configured to move, in response to the rotation of said lock lever from the initial position to the locked position, said suction cup from an initially attached state which is established by pressing, with said suction face opposed to the attaching object face, said center shaft against the attaching object face until said suction face is contacted over an overall area thereof with the attaching object face and the end portion of said skirt portion is contacted with an outer circumferential portion of said rear face or with a portion of the attaching object face on the outer side in a radial direction of said rear face to a finally attached state wherein said center shaft is displaced in a direction away from the attaching object face and then retain said lock lever at the locked position against the biasing force of said coil spring, wherein said music paper receiving frame and said outer tubular portion are connected to each other. 2. The music stand according to claim 1, wherein said music paper receiving frame and said outer tubular portion are connected to each other though a joint. 3. The music stand according to claim 1, wherein said suction cup includes a suction cup body and a gel layer; said suction cup body being formed from a resilient material while forming said rear face; said gel layer being formed from gel and attached to said suction cup body to form said suction face. 4. The music stand according to claim 1, wherein said suction cup further has an intermediately attached state wherein said center shaft is displaced in the direction away from the attaching object face by said coil spring from the position thereof when said suction cup is in the initially attached state; and the finally attached state is established by rotating, while said suction cup is in the intermediately attached state, said lock lever from the initial position to the locked position to further displace said center shaft in the direction away from the attaching object face. 5. The music stand according to claim 1, wherein said lock lever has an inner tubular portion inserted between the outer circumference of said center shaft and the inner circumference of said outer tubular portion and coupled to said center shaft against movement in the axial direction of said center shaft but for rotation around said center shaft, and a lever portion for rotating operation projecting outwardly in a radial direction of said inner tubular portion from said inner tubular portion, and said cam mechanism is provided between the inner circumference of said outer tubular portion and said inner tubular portion. 6. An article retaining apparatus, comprising: an article retaining section configured to support an article rested thereon; and a suction cup device configured to support said article retaining section, said suction cup device including a suction cup having a suction face and a rear face on the opposite sides along a thicknesswise direction thereof, a center shaft provided at the center of said rear face of said suction cup and extending in a direction away from said rear face along the thicknesswise direction, an attaching base having a skirt portion configured to cover said rear face of said suction cup and an outer tubular portion projecting from the center of said skirt portion and having said center shaft accommodated therein; and a displacement mechanism provided between said center shaft and said attaching base and configured to bias said center shaft and said attaching base in a direction in which, in a state wherein said suction face is attached to an attaching object face, an end of said skirt portion is pressed against said rear face of said suction cup or the end of said skirt portion is pressed against a portion of the attaching object face positioned on the outer side of said suction cup and displaces said center shaft in a direction in which said center shaft is spaced away from the attaching object face, said displacement mechanism including a lock lever coupled to an end portion of said center shaft against movement in an axial direction of said center shaft but for rotation in a circumferential direction of said center shaft between an initial position and a locked position, a coil spring disposed around said center shaft on the inner side of said outer tubular portion and anchored at one end thereof by said outer tubular portion and at the other end thereof by said lock lever in such a manner as to bias said lock lever toward the initial position and bias said outer tubular portion and said lock lever in a direction away from each other along said center shaft, and a cam mechanism provided between said outer tubular portion and said lock lever and configured to move, in response to the rotation of said lock lever from the initial position to the locked position, said suction cup from an initially attached state which is established by pressing, with said suction face opposed to the attaching object face, said center shaft against the attaching object face until said suction face is contacted over an overall area thereof with the attaching object face and the end portion of said skirt portion is contacted with an outer circumferential portion of said rear face or with a portion of the attaching object face on the outer side in a radial direction of said rear face to a finally attached state wherein said center shaft is displaced in a direction away from the attaching object face and then retain said lock lever at the locked position against the biasing force of said coil spring, wherein said article retaining section and said outer tubular portion are connected to each other. 7. The article retaining apparatus according to claim 6, wherein said article retaining section and said outer tubular portion are connected to each other though a joint. 8. The article retaining apparatus according to claim 6, wherein said suction cup includes a suction cup body and a gel layer; said suction cup body being formed from a resilient material while forming said rear face; said gel layer being formed from gel and attached to said suction cup body to form said suction face. 9. The article retaining apparatus according to claim 6, wherein said suction cup further has an intermediately attached state wherein said center shaft is displaced in the direction away from the attaching object face by said coil spring from the position thereof when said suction cup is in the initially attached state, and the finally attached state is established by rotating, while said suction cup is in the intermediately attached state, said lock lever from the initial position to the locked position to further displace said center shaft in the direction away from the attaching object face. 10. The article retaining apparatus according to claim 6, wherein said lock lever has an inner tubular portion inserted between the outer circumference of said center shaft and the inner circumference of said outer tubular portion and coupled to said center shaft against movement in the axial direction of said center shaft but for rotation around said center shaft, and a lever portion for rotating operation projecting outwardly in a radial direction of said inner tubular portion from said inner tubular portion, and said cam mechanism is provided between the inner circumference of said outer tubular portion and said inner tubular portion.