초록 ▼

Device for the removable fastening of a plate-shaped component onto a base with a T-groove open in the direction of the component. The invention consists of a pot-shaped receiving element, a head-bolt, a spring element arranged in the receiving-element and a cross bar arranged at the free end of the

Device for the removable fastening of a plate-shaped component onto a base with a T-groove open in the direction of the component. The invention consists of a pot-shaped receiving element, a head-bolt, a spring element arranged in the receiving-element and a cross bar arranged at the free end of the shaft of the head-bolt. The cross-bar is insertable in the T-groove and movable against the force of the spring element in the direction of the T-groove floor and engageable behind the shoulders of the T-groove by turning through 90°. In accordance with the invention, the cross-bar has at least one stop interacting with one edge of the aperture of the T-groove in front of the head-bolt shaft end bearing the cross-bar. This stop prevents the continued turning of the head bolt after attainment of the locked position. The pot-shaped receiving element and the cross-bar are fitted with interacting means of guidance in such a way that the cross-bar can be moved axially from its locked position into its unlocked position, under guidance, by a turning movement of 90°.

대표청구항 ▼

A device for removably fastening a plate-shaped component onto a base, said plate-shaped component including a diametrically widened hole, said base including a T-groove having diametrically opposed shoulders, each of said shoulders having an edge, said device comprising: a substantially pot-shaped

A device for removably fastening a plate-shaped component onto a base, said plate-shaped component including a diametrically widened hole, said base including a T-groove having diametrically opposed shoulders, each of said shoulders having an edge, said device comprising: a substantially pot-shaped receiving element, said receiving element having a floor therein, said floor having a central hole therethrough, said receiving element further having a pair of snap wedges protruding axially therefrom on diametrical sides of said hole for being snappingly inserted into said diametrically widened hole in said plate-shaped component, thereby holding said receiving element onto said plate-shaped component; a head-bolt reciprocally guided in said central hole of said floor of said receiving element, said head-bolt having a first end and a second end, said head-bolt having a head at said first end thereof; biasing means inserted in said receiving element between said head of said head-bolt and said floor of said receiving element for biasing said head-bolt in a direction axially away from said floor of said receiving element; a cross-bar located at said second end of said head-bolt, said cross-bar being insertable in said T-groove of said base when said plate-shaped component is placed against said base, said cross-bar further having at least one radial extension thereon, said at least one radial extension of said cross-bar interferingly engaging said shoulders of said T-groove thereby locking said plate-shaped component onto said base when said head-bolt has been depressed against said biasing means and rotated from an unlocked position to a locked position; stop means for preventing said head-bolt from turning further than said locked position; and means for axial and radial guidance of said cross-bar in response to rotation of said head-bolt, so that said at least one radial extension of said cross-bar is axially lifted off said shoulders of said T-groove when turning said head-bolt from the locked position to the unlocked position.