US 4,545,697 AGranted

Device for fixing by screwing onto a channel section and the combination of a channel section and such a device

AssigneeLa Telemecanique Electrique

InventorsSerge Verdenne, Didier Brocard, Pierre Hardouin, Felix Lameyre

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Abstract

The device for fixing an object by screwing to a section having two flanges directed substantially towards one another and defining therebetween a longitudinal opening comprises an elongated plate provided with one of the threaded portions and rotatable in a plane substantially parallel to that of the flanges of the section. In a free position, the longitudinal direction of the plate corresponds substantially to that of the section. In a retained position, the plate is retained under the flanges of the section and immobilized in one at least of the directions of rotation. Resilient means are provided for urging the plate towards the flanges of section in the retained position. The resilient means bear on a wedge intended to be inserted between the external face of the flanges of the section and the object to be fixed. This wedge has a passageway for a connecting rod between the plate and the other screw fixing element.

Claims14

Dependent claims

A device for securing an object by screwing to a channel member having two flanges (7) directed substantially towards one another and defining therebetween a longitudinal opening, this device comprising:

(a) a wedge member having a through bore and a channel member engaging face adapted to engage an outer face of both flanges;
(b) a bolt including in turn:
a first retaining member in the form of an elongated plate (8) rotatable in a plane substantially parallel to that of the flanges (7) of the channel member (3) between a free position in which a longitudinal direction of the plate is substantially parallel to a longitudinal direction of the channel member, and a retained position in which said plate (8) engages an inner face of both flanges (7) of the channel member;
a second retaining member (12) facing toward a face of the wedge member which is remote from the channel member engaging face;
a connection rod (11, 51) secured to one of the retaining members (8, 12) and provided with a threaded portion adapted to threadingly engage a threaded bore of the other retaining member;
(c) resilient means urging the plate (8) towards the channel member engaging face of the wedge member;
wherein
(d) the wedge member is interlocked with the plate for rotation about an axis (Z--Z) parallel to that of the connecting rod;
(e) the wedge member has on its channel member engaging face (17) at least one boss (34) adapted to fit between the flanges of the channel member (3) when the plate (8) is in the retained position;
and
(f) the plate is provided with two opposite engagement zones (42) which are positioned to be the first portions of the plate to engage behind the flanges upon rotation of the plate from the free position towards the retained position, and which are spaced apart from the channel member engaging face of the wedge even when the resilient means is the least stressed.

8 more elements

(a) a wedge member having a through bore and a channel member engaging face adapted to engage an outer face of both flanges;
(b) a bolt including in turn:
a first retaining member in the form of an elongated plate (8) rotatable in a plane substantially parallel to that of the flanges (7) of the channel member (3) between a free position in which a longitudinal direction of the plate is substantially parallel to a longitudinal direction of the channel member, and a retained position in which said plate (8) engages an inner face of both flanges (7) of the channel member;
a second retaining member (12) facing toward a face of the wedge member which is remote from the channel member engaging face;
a connecting rod (11) secured to one of the retaining members (8, 12) and provided with a threaded portion adapted to threadingly engage a threaded bore of the other retaining member;
(c) resilient means urging the plate (8) towards the channel member engaging face of the wedge member;
(d) a stirrup (22) having two arms (23) an end of which is secured to the wedge member adjacent the channel member engaging face and between which the plate (8) is slidably and unrotatably mounted;
wherein the resilient means comprise a spring (13) inserted between the plate (8) and a central part (21) connecting the two arms of the stirrup, this latter protruding in use in the channel member between both flanges (7) of the channel member (3), the space required by the stirrup being sufficiently small not to hinder rotation of the wedge member (44) and of the plate (8) between the free and retained positions.

5 more elements

A combination including:

(a) a channel member having two flanges (7) directed substantially towards one another and defining therebetween a longitudinal opening;
(b) a wedge member having a through bore and a channel member engaging face adapted to engage an outer face of both flanges;
(c) a bolt including in turn
a first retaining member in the form of an elongated plate (8) rotatable in a plane substantially parallel to that of the flanges (7) of the channel member (3) between a free position in which a longitudinal direction of the plate is substantially parallel to a longitudinal direction of the channel member, and a retained position in which said plate (8) engages an inner face of both flanges (7) of the channel member;
a second retaining member (12) facing toward a face of the wedge member which is remote from the channel member engaging face;
a connecting rod (11, 51) secured to one of the retaining members (8, 12) and provided with a threaded portion adapted to threadingly engage a threaded bore of the other retaining member;
(c) resilient means urging the plate (8) towards the channel member engaging face of the wedge member;
wherein the channel member engaging face of the wedge member and an outer face of the flanges of the channel member having sliding resistance means (31, 36, 43) engageable under action of the resilient means and of mutual screwing of the first and second retaining members, and disengageable by lifting the wedge member from the flanges of the channel member, said adherence means being adapted, when interengaged, to restrain translational movement of the wedge member along the channel member.

5 more elements

Dependencies are inferred from the claim text.