GB2097467A

GB2097467A - Drive rod fittings for the frames of windows, doors and the like

Info

Publication number: GB2097467A
Application number: GB8207194A
Authority: GB
Original assignee: Wilhelm Frank GmbH
Current assignee: Wilhelm Frank GmbH
Priority date: 1981-03-11
Filing date: 1982-03-11
Publication date: 1982-11-03
Also published as: DE3109124C2; JPH0478788B2; YU42459B; FR2501767A1; JPS57172085A; DE3109124A1; AT376001B; FR2501767B1; ATA86082A; GB2097467B; YU51782A

Abstract

A drive rod (3) which passes through a longitudinal slot (2) in the frame (1) of a door, window or the like has one or more downwardly cranked portions (8) which are provided with lateral recesses in the vicinity of the ribs (6). In this way, the drive rod itself constitutes the retaining means, the drive rod being perfectly guided by the parts of the drive rod which are disposed underneath the ribs. <IMAGE>

Description

SPECIFICATION Drive rod fittings for the frames of windows, doors and the like It is known from German Utility Model No.

7537867 for a longitudinal slot in a window, door or like frame which serves to guide a drive rod, to be provided with ribs projecting from its side walls and disposed at a distance from the fillister face. In this case, the drive rod is mounted in the upper part of the slot in such a way as to rest and be displaceable on the front or upper faces of the ribs and is provided with retaining means which engage at regular intervals beneath the rear or lower faces of the ribs. With this construction, the drive rod can be manufactured from conventional strip steel but because of the projections which serve as retaining means, there is a need for additional parts to be fitted.With the use of drive rods the profiles of which match the cross-section of the corresponding slots, fewer individual parts are required and there is no necessity to fit retaining means but special profiles have to be employed and the resulting drive rods involve considerable expense.

German Utility Model No. 7410711 discloses the use of slide rails having cranked portions which extend to the bottom of the slot and prevent movement about the longitudinal axis of the slot, but neither the slot nor the slide rail is designed to prevent the rails from being lifted. If, however, screws are provided in the bottom of the slot to prevent the rail from lifting they also prevent its displacement in a longitudinal direction.

The object of the present invention, therefore, is to provide a drive rod which can be produced from strip steel and which can be reliably guided in a slot in a window, door or like frame without the need for fitting any additional component parts. According to the invention, this is achieved by forming the drive rod with at least one cranked portion which is provided with lateral recesses in the vicinity of the ribs on the sides of the slot, the width of the rod between said recesses being smaller than the distance between the ribs.

Such a drive rod of strip steel which has been cranked and provided with recesses, itself constitutes the means by which it is retained in the slot. As a result of the cranked arrangement, one part of the drive rod passes through the lower part of the longitudinal slot and engages underneath the ribs. The drive rod is thus partially guided in the lower part of the slot which is divided from the upper part by the ribs and the part of the drive rod resting on the ribs can be provided with closure bolts, drive means or the like for a window, door or the like.

It is possible thereby for the drive rod to extend over the major part of its length in the lower part of the slot and only pass into the upper part of the slot at that region designed to effect window or door closure. In order however, to enable the longitudinal slot to remain covered over the greatest possible length thereof, the length of the or each cranked portion is kept short. Over the total length of the drive rod it is possible to provide cranked portions at enough locations to achieve perfect guidance without any considerable structural complications, in spite of the tendency of the drive rod to move upward.

The accompanying drawing is a perspective view, partly in section and with parts broken away, of part of a window or door frame part provided with a drive rod in accordance with the invention.

A frame 1 of synthetic plastics material is provided with a longitudinal slot 2 which serves to guide a drive rod 3. The side walls 4 of the slot are provided with ribs 6 spaced at a distance from the bottom 5 of the slot or the fillister face 13, and serving to narrow the cross-section of the longitudinal slot 2. the drive rod includes a part 7 which extends above the ribs 6 and a cranked portion 8 directed towards the bottom 5 of the slot and provided with recesses 9 in the region of the ribs 6. The width 10 of the cranked portion 8 between two adjacent recesses 9 is smaller than the distance 11 between the ribs 6. The cranked portion 8 ends in the part 12 of the drive rod which is disposed in the lower zone of the longitudinal slot 2 and engages underneath the ribs 6.The part 7 of the drive rod which is guided in the upper part of the slot rests on the front or upper faces of the ribs 6 while the part 12 of the drive rod at the bottom of the slot engages under the rear or lower faces of the ribs 6. Thus, reliable guidance of the entire drive rod 3 is assured, and any tipping or lifting of the rod in a vertical direction being prevented.

A plurality of cranked portions 8 are provided at intervals along the drive rod 3 so that although a major part of the drive rod 3 extends through the upper zone of the longitudinal slot 2, perfect guidance results. The free end of the drive rod 3 is provided with a further cranked portion 14 and so terminates in the lower part of the slot where it is provided with a hole 1 5 through which it can be connected to a further part of the window or door such as a corner reversing device.

Claims

1. A drive rod fitting for insertion in a longitudinal slot in a window, door or like frame, said slot being provided with ribs extending inwardly from its side walls and located remote from the rebated surface of the frame and the drive rod being slidably mounted in the upper part of the groove above said ribs and being provided with retaining means disposed at regular intervals thereon which engage beneath the ribs, characterized in that said retaining means comprises at least one downwardly cranked portion of the drive rod which portion is laterally recessed in the vicinity of the ribs so that the width of the recessed part of the cranked portion is less than the distance between the ribs.

2. A drive rod fitting for insertion in a

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Drive rod fittings for the frames of windows, doors and the like It is known from German Utility Model No. 7537867 for a longitudinal slot in a window, door or like frame which serves to guide a drive rod, to be provided with ribs projecting from its side walls and disposed at a distance from the fillister face. In this case, the drive rod is mounted in the upper part of the slot in such a way as to rest and be displaceable on the front or upper faces of the ribs and is provided with retaining means which engage at regular intervals beneath the rear or lower faces of the ribs. With this construction, the drive rod can be manufactured from conventional strip steel but because of the projections which serve as retaining means, there is a need for additional parts to be fitted.With the use of drive rods the profiles of which match the cross-section of the corresponding slots, fewer individual parts are required and there is no necessity to fit retaining means but special profiles have to be employed and the resulting drive rods involve considerable expense. German Utility Model No. 7410711 discloses the use of slide rails having cranked portions which extend to the bottom of the slot and prevent movement about the longitudinal axis of the slot, but neither the slot nor the slide rail is designed to prevent the rails from being lifted. If, however, screws are provided in the bottom of the slot to prevent the rail from lifting they also prevent its displacement in a longitudinal direction. The object of the present invention, therefore, is to provide a drive rod which can be produced from strip steel and which can be reliably guided in a slot in a window, door or like frame without the need for fitting any additional component parts. According to the invention, this is achieved by forming the drive rod with at least one cranked portion which is provided with lateral recesses in the vicinity of the ribs on the sides of the slot, the width of the rod between said recesses being smaller than the distance between the ribs. Such a drive rod of strip steel which has been cranked and provided with recesses, itself constitutes the means by which it is retained in the slot. As a result of the cranked arrangement, one part of the drive rod passes through the lower part of the longitudinal slot and engages underneath the ribs. The drive rod is thus partially guided in the lower part of the slot which is divided from the upper part by the ribs and the part of the drive rod resting on the ribs can be provided with closure bolts, drive means or the like for a window, door or the like. It is possible thereby for the drive rod to extend over the major part of its length in the lower part of the slot and only pass into the upper part of the slot at that region designed to effect window or door closure. In order however, to enable the longitudinal slot to remain covered over the greatest possible length thereof, the length of the or each cranked portion is kept short. Over the total length of the drive rod it is possible to provide cranked portions at enough locations to achieve perfect guidance without any considerable structural complications, in spite of the tendency of the drive rod to move upward. The accompanying drawing is a perspective view, partly in section and with parts broken away, of part of a window or door frame part provided with a drive rod in accordance with the invention. A frame 1 of synthetic plastics material is provided with a longitudinal slot 2 which serves to guide a drive rod 3. The side walls 4 of the slot are provided with ribs 6 spaced at a distance from the bottom 5 of the slot or the fillister face 13, and serving to narrow the cross-section of the longitudinal slot 2. the drive rod includes a part 7 which extends above the ribs 6 and a cranked portion 8 directed towards the bottom 5 of the slot and provided with recesses 9 in the region of the ribs 6. The width 10 of the cranked portion 8 between two adjacent recesses 9 is smaller than the distance 11 between the ribs 6. The cranked portion 8 ends in the part 12 of the drive rod which is disposed in the lower zone of the longitudinal slot 2 and engages underneath the ribs 6.The part 7 of the drive rod which is guided in the upper part of the slot rests on the front or upper faces of the ribs 6 while the part 12 of the drive rod at the bottom of the slot engages under the rear or lower faces of the ribs 6. Thus, reliable guidance of the entire drive rod 3 is assured, and any tipping or lifting of the rod in a vertical direction being prevented. A plurality of cranked portions 8 are provided at intervals along the drive rod 3 so that although a major part of the drive rod 3 extends through the upper zone of the longitudinal slot 2, perfect guidance results. The free end of the drive rod 3 is provided with a further cranked portion 14 and so terminates in the lower part of the slot where it is provided with a hole 1 5 through which it can be connected to a further part of the window or door such as a corner reversing device. Claims

2. A drive rod fitting for insertion in a longitudinal slot in a window, door or like frame, substantially as hereinbefore described with reference to or as shown in the accompanying drawing.