Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
  • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
  • E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
  • E05C9/041—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with rack and pinion mechanism
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
  • E05C7/00—Fastening devices specially adapted for two wings
  • E05C7/04—Fastening devices specially adapted for two wings for wings which abut when closed

Definitions

• the invention relates to a gear of a fitting for a window, a door or the like, in particular a blow bar gear, with a gear housing, at least one drive rod and a drive gear, the teeth of which mesh with recesses in the drive rod.
• the invention further relates to a fitting for a window, a door or the like, which comprises such a transmission.
• the invention is therefore based on the object of providing a gear unit and a fitting of the type mentioned at the outset for mounting on a sash of a window, a door or the like which do not require any particular outlay and are therefore inexpensive. Nevertheless, it should be ensured that the control handle has a visually appealing position.
• the object is achieved in that the axis of rotation of the drive gear lies at a distance from the rebate on the drive rod.
• the known configurations provide that the axis of rotation of the drive gear is arranged on the groove side of the drive rod driven by the drive gear, it is in the case of the transmission according to the invention, arranged on the fold side at a distance from this drive rod, more precisely at a distance from the fold-side or faceplate-side broad side surfaces of the aligned drive rod sections projecting beyond the transmission on opposite sides.
• the invention thus goes a completely different way from the prior art in that it arranges the axis of rotation of the drive gear in the plane of the window or door leaf on the opposite side of the drive rod.
• the driver of the operating handle which is designed as a mandrel or square, is located on the rabbet side of the gear mechanism as seen from the faceplate surface.
• This makes it possible, in particular in the case of double-leaf rotating windows with or without a central spar, to mount the operating handle in the middle or approximately in the middle on the central spar or on a cover strip which is projecting over one of the two central spars of the two wings and overlaps the other central spar.
• Driving rod is also to be understood as a connecting rod connecting piece which engages with the recesses of a drive toothing of the driving rod within the transmission housing and is rigidly connected to the actual driving rod, which projects beyond the housing in the direction of its longitudinal axis.
• a drive gear is referred to as a gear which is rotatably mounted in the gear housing and which, when the fitting is mounted, can be connected in a rotationally fixed manner to an operating handle of the window or door leaf, the catches of which engage in a recess in the drive gear, the teeth of the drive gear having recesses mesh the drive rod, so that they are in mesh with the drive rod immediately and without another intermediate gear.
• the part of the drive gear provided with the teeth is essentially designed as a segment of a circle, ie, when viewed in the direction of the axis of rotation, approximately in the form of a large “piece of cake” delimited by two straight sides and an arc. having.
• This piece of cake preferably form an angle of approximately 90 degrees, the bisector of which extends through the axis of rotation, which is arranged in the vicinity of the tip of the segment of a circle.
• the circular "back" of the piece of cake bears the teeth for meshing with the drive rod.
• the drive gear for the stroke of the drive rod passes through an angle of rotation that is smaller than 180 °, in particular approximately 90 °.
• the angle of rotation of the drive gear and the angle enclosed by the sides of the drive gear preferably complement each other by approximately 180 °, so that in each of the two end positions of the drive gear one of its two sides is essentially flush with a delimitation-side boundary surface of the gear housing. This ensures that the drive gear does not protrude outwards beyond the contour of the gear housing over the entire rotation angle and also in its end positions.
• the drive gear it expediently has at least one bearing pin projecting over an end face, which is rotatably mounted in a bearing recess of the gear housing.
• This bearing recess is preferably arranged in the vicinity of the rebate-side boundary surface of the gear housing, it being particularly preferred that the distance of the axis of rotation from this rebate-side boundary surface is smaller than the radius of the bearing journal, so that the bearing recess is designed as an open-edge bearing recess. This means that it is not completely closed along its circumference, ie not completely is surrounded by the material of the housing. In other words, the bearing recess is open on one side, where it is cut secant-like from the rebate-side boundary surface of the gear housing. As a result, the bearing recess can be displaced particularly far in the direction of this boundary surface, which makes it possible to arrange the axis of rotation of the drive gear at a particularly large distance from the drive rod on the fold side.
• the bearing recess is made along its circumference over an angle of more than 180 ° and preferably from approximately 270 ° to 300 ° Gearbox housing limited, the bearing pin on the rabbet side of the gearbox housing is engaged from both sides by parts of the housing.
• the secure hold of the drive gear can be further improved by providing the drive gear on one or both end faces radially outward from the bearing journal with a protruding projection which is guided in a corresponding circular recess or groove in the opposite wall of the gear housing.
• a reverse arrangement of such a link guide with a protrusion projecting inwards over the wall of the gear housing and engaging in an opposite circular arc-shaped recess or groove of the drive gear is also possible.
• the projection engaging in the groove can at the same time also ensure better guidance of the drive gear, in particular if, according to an advantageous embodiment of the invention, it has the shape of a partial ring which engages in a longer guide groove which is also designed as a partial ring.
• the transmission is designed as a spreading transmission and comprises a conversion or coupling gear for co-driving a second drive rod, which is extended or retracted with a direction of movement opposite to the direction of movement of the first drive rod meshing with the drive gear.
• FIG. 1 shows a longitudinal section through the transmission
• Figure 2 is a perspective view of a housing half
• Figure 3 is a plan view of the housing half of the gear housing shown in Figure 2.
• the expanding gear 1 shown in the drawing of a fitting for a rotating sash of a window or a door is designed as a beating bar gear which is inserted into the beating bar of the rotating wing during assembly.
• the transmission 1 has a transmission housing 2 in which a drive gear 3 and a coupling gear 11 are rotatably mounted about two parallel axes of rotation 4 and 21 arranged at a distance.
• the gear housing 2 further encloses the adjacent ends of two drive rods 8 and 13, which are axially displaceably guided in the gear housing 2, emerge from the gear housing 2 on opposite sides and are moved in opposite directions depending on the actuation of the drive gear 3, ie depending on the direction of rotation of an operating handle (not shown) for the rotary wing, the driver is positively engaged with the drive gear 3.
• the gear housing 2 consists of two housing halves 22, which essentially correspond to one another in plan view, of which only one is shown in the drawing.
• the two housing halves 22, for example made of die-cast aluminum, have two axial guides 25 and 26 for the drive rods 8 and 13, respectively, provided on their opposite ends with an outlet opening 23 and 24, respectively.
• the two housing halves 22 are each provided with opposite cylindrical bearing recesses 14 and 27 for the drive gear 3 and for the coupling gear 11, which are arranged at a distance from one another.
• the two housing halves 22 are assembled after the insertion of the drive rods 5 and 6, the drive gear 3 and the coupling gear 11 and firmly connected to each other.
• the bearing recess 14 is designed to be open at the edge, that is to say it has an opening 16 in the rabbet-side boundary surface 28 of the transmission housing 2, which extends over a circumferential sector of the bearing recess 14 of approximately 50 ° extends.
• the housing half 22 is provided with a recess 17, which is oriented concentrically to the axis of rotation 4 and is in the form of a partial annular groove 18, which extends over an angle of 180 ° around the bearing recess 14 on the side facing away from the boundary surface 28 , their ends being approximately the same distance from the boundary surface 28.
• the bearing recess 14 and the partial annular groove 18 are formed in the other housing half 22 in mirror symmetry with respect to a parting plane between the two housing halves 22.
• the axis of rotation 4 of the drive gear 3 is arranged on the rabbet side of the drive rod 8, wherein it has a distance X of about 8 to 9 mm from its rabbet-side surface 23.
• the drive gear 3, which is also called a nut is drawn, has on its opposite end faces each a protruding cylindrical bearing pin 15 (only one visible) which engages positively in the bearing recess 14 of the opposite housing half 22.
• the drive gear 3 is preferably provided with a Torx adapter between the Torx and the square handle.
• the drive gear 3 In its axial direction, the drive gear 3 has, between the two opposite bearing journals 15, a radially projecting flange 30 in the form of a segment of a circle, which is slidably guided between two parallel inner walls of the housing halves 22.
• the flange 30 In a top view, the flange 30 has approximately the shape of a piece of cake that has two mutually perpendicular side surfaces 31, 32. These enclose an angle of 90 degrees and are each aligned parallel to a radius vector of the drive gear 3 running through the axis of rotation 4 and tangential to the peripheral surfaces of the bearing journals 15.
• the drive gear 3 is provided on each broad side surface of the flange 30 with a projection 19 which engages in the associated partial annular groove 18 in the opposite housing half 22 of the gear housing 2.
• the projection 19 is designed as a partial ring cam 20 concentric with the axis of rotation 4 and extends over an angle of 90 °.
• the partial ring cam 20 and the partial ring groove 18 form a link guide which limits the rotational movement of the drive gear 3 to a rotation angle of 90 ° between two end positions, in which one of the opposite ends of the partial ring cam 20 abuts against the adjacent end of the partial ring groove 18 and the adjacent side surface 31, 32 is aligned with the lateral boundary surface 28 of the transmission housing 2.
• the flange 30 further has a quarter-circular peripheral surface 34 corresponding to the back of the piece of cake, which is provided with a total of five protruding teeth 6.
• these teeth 6 mesh with drive gear recesses 7 of a longitudinal toothing of the drive rod 8 guided in the nut-side axial guide 25, as a result of which this is displaced in the direction of arrow A or B depending on the direction of rotation of the drive gear 3.
• the teeth 6 of the drive gear 3 meshing with the recesses 7 of the drive rod 8 are also arranged on the nut side of the axis of rotation 4. In the two end positions of the drive gear 3 offset by 90 °, the last two teeth 6 engage in two recesses 7.
• the Koppel ⁇ ahnrad 11 arranged at a distance from the drive gear 3 in the interior of the transmission housing 2 also has two cylindrical bearing journals 36 (only one visible) projecting on its opposite end faces, which engage in the other pair of opposite bearing recesses 27 in the housing halves 20.
• the coupling gear 11 is provided over its entire circumference with teeth 37, the number of which is six in the exemplary embodiment shown. Of these teeth 37, one to two mesh on the groove side of the coupling gear 11 with coupling gear recesses 10 of a further longitudinal toothing of the drive rod 8 driven by the drive gear 3. On the opposite fold side of the coupling gear 10, one or two of the teeth 37 with coupling gear recesses also mesh 12 a longitudinal toothing of the other drive rod 13.
• the spacing of the recesses 12 corresponds exactly to the spacing of the recesses 10, the straight line with the coupling Gear 11 in the meshing recesses 10 and 12 as seen from the axis of rotation 21 of the coupling gear 11 lie on diametrically opposite sides.
• the drive rod 13 is axially displaced by the same amount as this when the drive rod 8 is axially displaced, but in the opposite direction.
• the coupling gear wheel recesses 10, 12 are each arranged in the end region of the drive rod 8 and 13, respectively, in such a way that they lie exactly opposite one another when the drive rods 8 and 13 are in a middle position lying between their two end positions.
• the gear-side end of the drive rod 13 has an offset 38 in the area of the outlet opening 24 of the housing 2, the dimensions of which are selected such that the sections 39, 40 of the drive rods 8 and 13 projecting over the housing are aligned.
• the transmission 1 works in the assembled and installed state as follows:
• the operating handle of the rotary wing not shown, is turned to unlock the rotary wing, the drive gear 3 is rotated by the driver of the operating handle.
• the angle of rotation as a result of the ends of the partial ring cam 20 striking against the ends of the partial ring groove 17 is a maximum of 90 °. Since this maximum angle of rotation of 90 ° is complemented by the angle of 90 ° enclosed between the side surfaces 31, 32 of the drive gear 3 to a maximum of 180 °, it can be ensured that the drive gear 3 is not in any rotational position of the operating handle via the lateral boundary surface 28 of the gear housing 2 survives.
• the drive rod 8 Since the teeth 6 of the drive gear 3 mesh with the recesses 7 of the drive rod 8, the drive rod 8 is axially displaced from the end position shown in FIG. 1 in the direction of arrow B when the drive gear 3 rotates clockwise. Due to this displacement, the coupling gear 11 is also clockwise rotated clockwise since the coupling gear recesses 10 mesh with the teeth of the coupling gear 11. Due to the rotation of the coupling gear 11 and the engagement of the teeth 37 of the coupling gear 11 in the recesses 12 of the drive rod 13, the latter is displaced in the direction of arrow A and thus opposite to the direction of movement of the drive rod 8.
• the axis of rotation 4 and thus also the driver of the operating handle is arranged at a distance X from the drive rod 8 such that the axis of rotation 4 and the driver lie on the rebate side outside the faceplate surface.
• an additional link guide 17, 20 is provided as a guide and holder for the nut formed by the drive gear 3 in addition to the bearing pins 15 engaging in the bearing recesses 14. This contributes to the fact that the bearing recesses 14 are designed as edge-open bearing recesses 14 and can therefore be arranged closer to the rebate-side boundary surface 28 of the gear housing 2 without the risk that the forces exerted by the drive gear 3 on the gear housing 2 lead to damage. supply of the gear housing 2 and thus lead to a displacement of the drive gear 3. Finally, it is also important that the drive gear 3 meshes with the nut-side drive rod 8.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Gears, Cams (AREA)
• Power-Operated Mechanisms For Wings (AREA)
• Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
• Window Of Vehicle (AREA)
• Gear Transmission (AREA)
• Glass Compositions (AREA)
• Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Priority Applications (4)

Applications Claiming Priority (4)

Publications (1)

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Family Applications (1)

Country Status (12)

Cited By (1)

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Citations (7)

Family Cites Families (10)

• 2003
  • 2003-06-12 EP EP04029943A patent/EP1518985B1/de not_active Expired - Lifetime
  • 2003-06-12 ES ES03013189T patent/ES2333590T5/es not_active Expired - Lifetime
  • 2003-06-12 AT AT03013189T patent/ATE445069T1/de active
  • 2003-06-12 DE DE50306915T patent/DE50306915D1/de not_active Expired - Lifetime
  • 2003-06-12 EP EP03013189A patent/EP1462594B2/de not_active Expired - Lifetime
  • 2003-06-12 AT AT04029943T patent/ATE358222T1/de active
  • 2003-06-12 ES ES04029943T patent/ES2283931T3/es not_active Expired - Lifetime
  • 2003-06-12 DE DE50311998T patent/DE50311998D1/de not_active Expired - Lifetime
  • 2003-06-12 SI SI200331721T patent/SI1462594T2/sl unknown
  • 2003-06-12 SI SI200330847T patent/SI1518985T1/sl unknown
• 2004
  • 2004-02-06 EA EA200501345A patent/EA007113B1/ru not_active IP Right Cessation
  • 2004-02-06 RS YUP-2005/0647A patent/RS50447B/sr unknown
  • 2004-02-06 WO PCT/EP2004/001093 patent/WO2004076788A1/de active Application Filing
  • 2004-02-06 PL PL377356A patent/PL212896B1/pl unknown
  • 2004-02-06 CN CNB2004800044926A patent/CN100417783C/zh not_active Expired - Fee Related
  • 2004-06-02 UA UAA200509027A patent/UA79547C2/uk unknown
• 2005
  • 2005-08-04 HR HRP20050700AA patent/HRP20050700B1/xx not_active IP Right Cessation

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