US 12,435,882 B2
Quick-fastening system for a telescopic extension
Andreas Heffel, Dierdorf (DE); and Karsten Diefenbach, Katzenelnbogen (DE)
Assigned to Accuride International GmbH, Diez (DE)
Filed by Accuride International GmbH, Diez (DE)
Filed on May 23, 2023, as Appl. No. 18/200,701.
Claims priority of application No. 10 2022 113 764.3 (DE), filed on May 31, 2022.
Prior Publication US 2023/0383960 A1, Nov. 30, 2023
Int. Cl. F24C 15/16 (2006.01)
CPC F24C 15/168 (2013.01) 9 Claims
OG exemplary drawing
 
1. A quick-fastening system suitable and adapted for releasably mounting a telescopic extension comprising a stationary rail member and at least one rail member movably supported relative to the stationary rail member, in a substantially horizontal orientation of the telescopic extension on a body,
wherein the quick-fastening system comprises a retaining bar (3) fixed or fixable to the body directly or by means of a side grid, and a rear quick-fastening element and a front quick-fastening element,
wherein the rear and the front quick-fastening elements are fixed or can be fixed at a distance from one another in the pull-out direction of the telescopic extension and with the front quick-fastening element further in the pull-out direction than the rear quick-fastening element to the stationary rail element of the telescopic extension to be mounted on the body, and wherein the rear and the front quick-fastening elements are designed for positive or positive and force-fit engagement with the retaining bar for releasably mounting the telescopic extension on the retaining bar,
wherein the retaining bar has a straight extending horizontal section and at opposite ends of the horizontal section respective end sections at opposite ends of the horizontal section, and wherein the horizontal section of the retaining bar has a cross-section perpendicular to its longitudinal extent which, when the horizontal section is oriented substantially horizontally, in its greatest extent has a height which is at least twice as great as its width perpendicular to the height,
the rear and front quick-fastening elements each having the following features, defined with reference to the retaining bar when the quick-fastening elements are engaged with the retaining bar for releasably mounting the telescopic extension:
a fixing plate for fixing the quick-fastening element to a surface of the stationary rail element of the telescopic extension,
a support section extending from the fixing plate over the horizontal section of the retaining bar and supported thereon from above,
a first securing section which extends vertically downwardly from the fixing plate on the rail side of the horizontal portion of the retaining bar and abuts the horizontal portion of the retaining bar on the rail side,
a second securing section which adjoins the support section and extends vertically downwards on the body side of the horizontal section of the retaining bar and bears on the body side against the horizontal section of the retaining bar,
wherein the rear quick-fastening element has a lift-out securing portion which is angled in the direction of the body side to join the first securing section and extends horizontally further in the insertion direction of the telescopic extension than the first securing section of the rear quick-fastening element, wherein the lift-out securing portion is vertically disposed at a height of the quick-fastening element so as to extend below the angled end portion of the retaining bar lying in the insertion direction when the rear quick-fastening element is positioned in a position on the retaining bar at which the first securing section abuts the angled end portion lying in the insertion direction.