DE2418674A1 - ROTARY HANDLE FOR DOORS AND WINDOWS AND PROCESS FOR THEIR MANUFACTURING - Google Patents

Description

DIPL-PHYS. DR. WALTHER JWNIWS 3 Hanover

VOLFSTRASSE 24. TELEPHONE (0511) 13 45 30

March 27, 1974 Dr.J / Ha

My file: 2183

DORTREND LIMITED, a British Company of Astral Works., Wilden, Stourport-on-Severn, Worcestershire, England

Twist handle set for doors and windows and procedures

for their manufacture

The present invention relates to a twist grip assembly for doors and windows, consisting of a handle with Handle neck, which has a recess for inserting a square mandrel, a door plate with a hole and bearing rosette, a spiral spring, one end of which is on the handle neck and the other end of which is on the door plate is attached as well as a stop plate with a square hole and limiting the rotation of the handle a spring holding the assembled set together and a method for their manufacture.

Such a handle set is known. Fig. 1 of the accompanying drawings shows a construction

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tion of this handle set in an exploded arrangement, which serves to illustrate the problems which arise with those who want to produce such door handle plate sets. In the 1 is a handle 10 serving as a handle, a washer serving as a rosette 11, made of plastic, a shield 12, a spiral spring 13 * a stop plate 14 and a return spring 15 shown. The pusher 10 and the shield are castings, nowadays often made of aluminum. she must undergo a series of operations before they are suitable for sale. These Operations include the casting of the individual pushers, sockets and plates, cleaning of the casting, as far as this is necessary, which depends on the quality of the workpiece as a casting, one Finishing, e.g. by grinding, polishing and anodizing. Sometimes the shield 12 is through produced a pressing process.

The pusher 10 comprises a part 20 which is gripped by the hand in use - the handle - here simply Called pusher, and a part 21 which is arranged substantially perpendicular to part 20 - the pusher neck. The trigger neck 21 is provided with a socket 22 which extends from the flat end face 23 of the trigger neck protrudes and which is axially aligned in the trigger neck 21. The bush 22 has a square axial recess 24, which is molded in during the casting of this workpiece. After casting there are two grooves (only one of which is easily visible in Pig. 1) into socket 22 for one to be described in more detail below Purpose incised.

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The shield 12 is provided with a hole 30, an annular seat 3I as a spring housing in which the spring 13 is arranged, and walls 34 surrounding the spring and forming the spring housing, between the opposite ends 33 of which a gap is formed. The walls, 34 are provided with a set-back (interrupted) flat surface 35 on which the corresponding parts of the stop plate located at the edge sit tightly against one another. Said surface is interrupted by the gap J> 2 on the one hand and by the stop 36 on the other.

The spring 13 has a bent end 40, which for hooking behind one or the other end of the walls 34 is provided. The Fed.er 13 has one in the middle lying part 41, which is designed approximately so that it surrounds the socket 32 tightly.

The stop plate 14 has an opening 50 arranged essentially in the center, the shape of which corresponds to the cross section of the bush 22. At the edge of the stop plate 14 there is a cutout 51j which has led to the creation of the stops 52, 53 formed offset at an angle by the edges of the cutout.

These individual parts of the handle set are shown below Composed way:

The rosette 11 is in the opening 30 of the front of the shield 12 used. The pusher 10 is then placed on the plate 12 until the flat end surface 23 of the pusher 10 is in contact with the rosette 11.

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The bush 22 now protrudes through the opening 30 and enables the central part 4-1 to be attached the spring 13 on the socket 22 and hooking the bent part 40 behind the left in Fig. 1 end 33 shown · Under these conditions, the turns of the spring 13 are absorbed by the walls 34. They are laterally in contact with the flat annular seat 31. The stop plate 14 is then pushed over the bushing 22 in such a way that the stop is brought into contact with the surface 54 of the stop 36. Finally, the spring 15 serving to hold the set together is over the end of the socket 22 in the two Grooves 25 pushed. It ensures that the surface 23 of the door pusher part 21 is held against the washer 11 and that therefore all other parts are firmly in place are held in their intended positions ο

When the composite handle set is used, the handle 20 is gripped and turned at an angle in the only one through the stop plate 14 and the stop 36 enabled way moves. This angular movement is in the embodiment described above, such a that the stop 53 is moved against the stop 36. This rotation through a certain angle stores energy in the spring 13 · releasing the trigger 20 enables the energy stored in the spring 13 to act on the socket 22 and to close this socket 22 rotate as far as the stop plate 14 allows, namely until the stop 52 is in contact with the surface 54 again of the stop 36 is brought.

The two door printer sets to be provided for one door,

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which form a pair and of which a door handle set is to be arranged on each side of the door with each other and with the lock mechanism by one The handle pin is connected to the square bolt, the middle part of which is in the lock mechanism after installation in the door is arranged and whose end parts extend into the corresponding axial recesses 24 in the sockets 22 «

It is the construction with this socket on the door handle and an axially extending square recess in the socket which has made it necessary casting as a production method for mass production to be used by door handle sets. Casting as a manufacturing method is slow and therefore is expensive. Even in mass production, individually produced parts must always be dealt with. That Pouring itself is unpleasant hard work due to the heat it creates. It also has the use of of the casting operation results in the finished product being expensive because of expensive finishing operations to which the rough casting must be subjected before it is considered ready for sale can be.

It is the object of the present invention to reduce costs by simplifying manufacturing and assembly methods while reducing the number of items.

The invention is based on the knowledge that the use of extruded parts instead of cast parts

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and the use of a component for several purposes make it possible to solve the problem.

Die.Erfindung is that the recess in The handle neck has a round cross-section and a thin-walled insert encompassing the handle mandrel in the recess is inserted, which is attached to the trigger neck.

This makes it possible to use the pusher and pusher neck as a single component from a pressed strand of the outer Cut out the shape of this component and the necessary recess for the reception of the pusher pin by a simple drilling process. The production of the handle and handle neck as a common component a pressed strand is very cheap. The drilling process is easy to carry out and that to be inserted into the borehole Insert that should enclose the handle and transmit the rotary movement of the handle to the handle is very cheap, e.g. from sheet metal, can be made =

It is useful to reduce the trigger neck after the workpiece has been cut from the extruded strand by reducing to edit that the cross-section of the part of the trigger neck extending through the shield is smaller than the width of the pusher.

For simple fastening, it is advantageous if the handle neck has slot-shaped recesses and if the thin-walled insert for the handle

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neck recess standing outwards at the side Has tongues «With this design, the insert only needs to be inserted into the bore and is then stuck with the tongues in the slot by itself.

To facilitate insertion, it is advantageous if the thin-walled insert has a longitudinal slot.

It has proven to be particularly advantageous if the sole plate is made from Pederstahl and lugs protrude into its hole, which are located in slots near the assembly on the trigger neck Hold tongues over. This will hold the insert in place in the wellbore.

The number of parts is further reduced by the fact that lugs protrude into the hole in the stop plate, whose mutual distance is smaller than the width of the trigger mandrel. Because then the stop plate takes over not just the aforementioned puncture of plague holding the use in the borehole in addition to its original puncture the limitation of the rotary movement of the pusher, but also the puncture of a spring that holds the individual parts of the handle set together.

These properties of the. Stop plate, which 'on their j Based on the spring action, they can be further improved by the fact that the protruding into the hole of the stop plate Approaches are bent by ^ -5 °.

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2Α1867Λ

Furthermore, the costs can be reduced in that the door plate is part of a pressed strand and on the side facing the door has receptacles for a plate which has a hole for the passage of the door handle neck and a fastening means for one end of the spiral spring and a cam as a stop has for the stop disc.

The procedure for manufacturing the twist grip set is as follows: that a piece is cut off as a pusher and pusher neck from a pressed strand that into the A hole is drilled into the front of the trigger neck so that the front of the trigger neck is slotted, that an insert is inserted into the hole in the handle neck before or after mounting the door plate and spiral spring and its outwardly projecting tongues are inserted into the slots in the trigger neck and then the Spring steel stop plate pushed over the end of the door handle neck against the spring and the insert will.

It is useful if the sides of the trigger neck to smaller dimensions before or after drilling and slots are processed.

The essence of the invention is shown below with reference to the exemplary embodiments shown schematically in the drawing explained in more detail. Show it:

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Fig. 1 shows the known rotary handle with the parts of its Set.

Fig. 2 is a side view of a pressed strand, for example of aluminum, for the manufacture of a pusher.

FIG. 5 is an end view of the press strand of FIG

4 shows a cut blank from the press rod of Fig. 2.

Fig. 5 shows the blank of Fig. 4- after processing a Part of the trigger neck.

Fig. Β the blank in the next production stage after reducing the middle part of the height of the trigger neck.

Fig. 7 shows the blank after drilling in the pusher mandrel receiving recess in the trigger neck.

FIG. 8 shows the blank according to FIG. 7 in a side view.

9 shows a view from above of the insert in the trigger neck recess.

Fig. 10 is a side view of the insert of Fig. 9

Fig. 11 is a perspective view of the insert of Fig. 9-

FIG. 12 shows a detail of an enlarged view of the trigger from FIG. 7, in which the insert is built in.

Fig '. 13 is a view of the stop plate for use in the handle of Fig. 12.

Fig. 14 the stop plate of Fig. 13 after installation in the pusher of FIG. 12.

Fig. 15 shows another version of the stop plate in Opinion.

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Pig. 1β a section through the stop plate of Fig. 15.

Fig. 17 is a front view of another insert. 18 shows a section through the insert from FIG. 17.

Fig. 19 shows another embodiment of the processing of the Trigger neck.

Fig.20 shows a plate for use with a pressed or extruded door sign.

Pigo21 an excerpt from a compiled Set consisting of an extruded door handle plate and those shown in FIGS Individual parts is put together »

Figure 2 is a side view of an extruded one Length of a piece of material, e.g. made of aluminum, and FIG. 5 is an end view of said extruded one Piece of material, viewed in the direction of arrow A in Figure 2. It is from Figures 2 and 3 it can be seen that the pressed strand consists of the two interconnected parts of the trigger neck 60 and the trigger handle 61 is formed. The indicated dividing line should - drawn quite arbitrarily - indicate where the one Part ends and the other begins.

FIG. K shows a view - similar to that of FIG. 2, of a pusher which has been cut out of the pressed strand of FIG.

Figure 5 shows the door handle unit of Figure 4 in the subsequent processing stage after part of the

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Part 60 is reduced in its width W.

Figure 6 shows the door handle unit of Figure 5 after the height of the handle neck 60 on a part E.g. by milling a slot is so reduced that parallel flanks 63,64 are formed, the one Include flat channel 65 (see also Figure 8). These However, flanks can also already be formed during extrusion. These reduction operations lead to the final shape of the trigger neck, which is indicated by reference numeral 70 in FIG. This one will then drilled in a further operation to make a cylindrical recess in the end face of the trigger neck to form (Figure 7). Through the reduction and After completion of the drilling operations, a trigger neck is formed, which is a single workpiece together with the The handle 60 of the trigger forms and which is shown in a view in FIG. 7 and in a side view in FIG.

After a blank of a pusher with. a trigger neck * which has a cylindrical recess 7I is, it is now necessary to provide working means which are able to rotate the Trigger 61 over the longitudinal axis of the trigger neck 61 on a serving as a trigger mandrel, not shown To transfer square pin, one end of which is in the circumference of the cylindrical recess of the Drüokerhalses. Said working means are shown in FIGS. 9 * 10 and 11. The view of FIG. 10 is a view looking in the direction of arrow B of FIG. 9 said working means is an elongated hollow insert 80 of square cross-section with one end on two opposite ends Sides bent outwards by two opposite

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to form lying tongues 81. The other two lying between these side walls bent at the end opposite side walls are not bent outwards and are therefore parallel to one another.

The insert 8o is inserted as part of the handle set in the cylindrical recess 71 in the handle neck in such a way that the corresponding ends 82 extend along the channel 65 parallel to the puddles 6j>, 6K and that the outwardly bent tongues 81 extend away from one another extend along the channel 65 (Figure 12).

FIG. 13 shows a plan view of the stop disk 90, which cooperates with the trigger neck to hold the insert in its seat in the recess 71, and which also: cooperates with a stop not shown, which is part of the door handle plate of FIG. This part 90 is a washer preferably made of spring steel, from the circumference of which a part 9I is taken out to at an angle to form staggered stops 92.95. The middle part this disc 90 is punched out and forms an opening, which is approximately determined by two opposing attachments 9 ^ and two opposing attachments 95

When the disc 90 is placed under pressure on the end of the trigger neck 60, after the trigger 6O, 61, the plastic rosette 11, the shield 12 and the spring 13 are assembled together, the resilient ones

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Lugs 94 are deformed to slide over the outer surfaces of the tabs 6-5,6K of the trigger neck 60. The lugs 95 extend into the channel 65 between said flanges 6j5 * 64. This state is shown in FIG. 14, from which the rosette 11, the shield 12 and the spring 15 have nevertheless been left out in order to simplify the drawing. The stop disk thus takes on two functions that were performed by the stop disk 14 and the retaining spring 15 in the known construction of the door handle set shown in FIG. In addition, the lugs 95 define the bent tongues 81 of the insert. The lugs 94 overlap the flanges 6j5,64 of the handle neck 60 and connect the handle and the shield firmly to one another. The lugs 95 are not only over the bent tongues 81 of the insert 80, but also ensure in connection with the resilient lugs 9 ^ ·> that when the door handle. is moved at an angle, the disc 90 follows accordingly as far as the stops 92, 93 allow by their striking against the stop on the handle plate,

Reference is now made to FIGS. 15 to 21, which are drawn to different scales and which small but important changes show which have been made to contribute to the manufacture of individual parts to facilitate a particularly attractive design of the door handle set of the invention »

Instead of a cast door handle plate shown in FIG 12 can be a pressed or extruded

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method produced handle plate 12 can be used. A pressed strand 100 is used for the throttle shield, the cross section of which is at the lower end of FIG the view is drawn and is provided with the reference numeral 101. The use of an extrusion process manufactured door handle plate means that an opening is missing in the extruded workpiece and that different Parts received during casting are missing, which connect to a seat for the spiral spring, a To form a gap for the fastening of the spiral spring and a stop, which prevents the angular movement of the door handle limited. Therefore, a plate 110 (FIG. 20) is additionally provided, which is a pressed workpiece and which is formed so that it has an opening 111, an upwardly pushed out part 112, which acts as a stop serves, and has two flanges 11J5,114 located on opposite sides. The free ends of the flanges 113, 114 act as feet on which the plate 110 is placed the extruded door handle plate 100 is. This created a space under the said plate, if the plate is arranged as in Fig.20, which is for the accommodation of the spiral spring similar to the spring of Fig. 1 is suitable.

The flange 113 and part of the bottom of the plate 110 is cut away at 115 to provide attachment for one end of said coil spring (Fig-.21). It is advantageous if the thickness of the plate 110 is substantially equal to the multiple of the channel, in which it is to be pushed to substantially any displacement of said plate 110 relative to the Avoid door handle plate 100.

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The other end of said spiral spring, designed in a special way, is intended to be embraced des'Drüokerhalses. · The pusher 120 is in Pig. 19 shown. It is designed as it is based on the Figures 2 to 8 is illustrated by a unit which is cut from the extruded strand. The trigger neck 121 is expediently machined on the outside and has a cylindrical "recess 122" which goes into the trigger neck is bored in, which is square in cross section and two diametrically opposed slots 1235,124 which is inserted into the wall of the recess 122 of the trigger neck 121 are cut into it. The contactors 123, 124 extend from the one free one End of the approach to points which are a little distant from the flat surface of the pusher which the trigger neck protrudes. It is useful if the approximately C-shaped in cross-section Parts which form the essential part of the wall of the trigger neck 121 are considerably stronger than the parallel puddles 6 ^, 64 of those previously described Embodiment are designed.

The slots 123, 124 do not need to be shaped in a special operation. The extruded strand can be approximated so that the spaced slots are created when the recess .122 is drilled will.

The insert shown in FIGS. 17 and 18 is, in contrast to the insert in FIGS. 19 and 11, a bent part made of sheet metal. The mentioned insert I30 therefore has a

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continuous slot I3I on one side. This has the advantage that the edges which delimit said slot are moved towards one another can as a result of possible deformation of the hollow Use of square cross-section, which makes it easier to insert into the recess in the trigger neck will.

This insert has outwardly bent tongues 132, 133. » for the same purpose as explained in the previously described embodiment.

15 and 16 show a Goheibe 14O, which is essentially the same as that of Figs and 14 is described. This disc has two angularly offset stops 141, 14-2 and two opposite one another Approaches 143. The other opposing approaches 144 are bent at an angle of 45 °.

The device shown in FIG. 21 consists of a shield 100 which is provided with an inclined hole so that the trigger neck 121 of the trigger 120 can pass through it. This trigger neck also extends through the opening 111 in the plate 110. One end 150 of the spiral spring is shown as it passed through the cutout 115. The other end of this spring surrounds the trigger neck. The insert I30 is then inserted into the opening in the trigger neck with its tongues I32, I33 in the slots 123, 124 or vice versa . Then the spring

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The stop washer 14O is placed on the DrUoker neck and depressed toward the plate 110 so that (a) the stop 142 at one end of the through a pressing operation bulged stop 112 rests, as it is drawn, and (b) the lugs 14 ^ over the surface of the tongues 1j52, 1 ^ 5 144 slide down extremely easily over the surfaces of the trigger neck 121. But everyone try that Disk 14O away from the desired position Had 110 to move, that resulted in the free Corners of the tabs 144 dig into the material (usually aluminum) from which the trigger neck is made.

The door handle set is being made ready for sale by inserting inserts 16O in the open ends of the handle plate 100 produced by the extrusion process (only shown in FIG. 21). The insert pieces 1βθ can be made of a plastic material be made. Said insert pieces 1βθ will preferably have holes 161 in the fastening screws which fit with holes 162 which are drilled into the handle plate 100 can be used.

Different embodiments are possible without the To leave the scope of protection of the attached claims. In a first change of the embodiment the insert with a square cross-section and the passage with a square cross-section could be omitted or recess part, which is necessary to the To transfer the rotation to the square pin, which is usually used as a push mandrel, with a square cross-section,

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which extends through the thickness of the door could be with a washer or other Plate, which can be connected to the trigger neck in any convenient way, e.g. by welding, is connected »Said disc would have a square recess in its center. The thickness and hardness of the material for this disc would have to be chosen so that the square recess is square for a decent length of time without an undue degree of wear and tear during re-oiled use would stay. In this modification of the embodiment, the stop disc secures the door handle on the Door handle plate and also has the angularly spaced stops, which with the stop interact on the door handle plate ο

In a second modified embodiment, which even if the insert, which is square in cross section, is missing, said lock washer can be appropriately designed Approaches, preferably oppositely arranged approaches, be provided. The free edges of these mentioned Lugs are designed to use the two flat surfaces of the conventionally used square spindle which extends through the thickness of the door. The approaches mentioned would be through the appropriately shaped slots extend in the socket. In this second modified embodiment, the Disc itself take on three different, important functions, namely the transmission of the rotation, the holding together the door handle and the door handle plate and the limitation of the angular movement of the door handle relative to the door handle plate.

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Claims (1)

Patent claims: Twist handle set for doors and windows, Consists of a handle with a handle neck, which has a recess for inserting a square mandrel s has. a door plate with a hole and bearing rosette, a spiral spring, one end of which is attached to the handle neck and the other end of which is attached to the door plate and a stop plate with a square hole limiting the rotation of the pusher and a die composite set of cohesive spring, characterized in that. that the recess (7I) in the trigger neck (60) round Has a cross-section and in the recess (71) a thin-walled insert (80, 130) encompassing the pusher mandrel is inserted, which is attached to the trigger neck (βθ). 2. Twist handle set according to claim 1, characterized in that that pusher (61) and pusher neck (60) are part of a pressed strand. 3. Rotary handle set according to claim 1 and 2, characterized, that the cross section of the part of the handle neck (60) extending through the shield (12,100) is smaller than the width of the pusher (61) Rotary handle set according to claim 1, characterized, - 2 509827/0145 2 ^ 18674 that the trigger neck (βθ) slot-shaped recesses (65; 123; 124) for the inclusion of am Insert (8o, 15O) located tongues (81,132). 5. Rotary handle set according to claim 4, characterized in that that the insert is an elongated component of square cross-section that is inserted into the recess (71) is pushed into the trigger neck (60). 6. Twist handle set according to claim 5 * characterized in that the thin-walled insert (130) has a longitudinal slot (131). 7. Twist handle set according to claim 4, characterized in that that the insert has one disc with a central square hole and two engage in the slot in the door handle neck Tongues is. 8. Twist handle set according to claim J, characterized in that the Seheibe has resilient tongues which rest against the square pusher mandrel. 9. twist handle set according to claim 1 to 8, characterized, 509827/0145 that the stop plate (9O, i4o) is made of spring steel and ^{protrudes into its hole lugs (9 2} M ² I ² O, which after assembly on the trigger neck cover the tongues (81, 132) lying in slots ^; 123; 124). 10. rotary handle set according to claim 1 to 9, characterized, that in the hole in the stop plate (90,140) projections (95,143) protrude, their mutual distance is smaller than the width of the trigger mandrel. 11. rotary handle set according to claim 8 and 10, characterized, that the in the hole of the stop plate (9O, 14O) protruding approaches are bent by 45. β rotary handle set according to claims 1 to 13, characterized, that the door plate (100) is part of a pressed strand, and on the side facing the door recordings for a plate (110) having a hole (111) for the passage, the door handle neck (6o) and a fastening means (115) for one end of the Has spiral spring (13) and a cam (112) as a stop for the stop disk (9O, 14O). 13 · Twist handle set according to claim 1, characterized in that
that the trigger with a trigger neck 509827/0145 with the door plate, the spring attached on the one hand to the door plate and on the other hand to the handle neck, the stop washer and one encompassing the square pin and into the cylindrical bore of the trigger neck inserted insert whose bent tongues extend iii slots in the trigger neck, through a resilient fastening washer is held together, which has a hole in the middle into the resilient Tongues extend into it and through which the trigger neck is stretched, the opposite of the direction of movement Prevent bent tongues from moving back when the fastening disc is pushed on. 14. Twist handle set according to claim 1, characterized, that the handle provided with a handle neck with the door plate, on the one hand on the door plate and on the other hand on the trigger neck attached spring and a square pin receiving and into the cylindrical Bore in the trigger neck insert, the bent tongues of which extend into slots in the trigger neck, is held together by a resilient mounting disc, which acts as a stop disc at its edge is formed and has a hole in the middle into which resilient tongues extend and through which the trigger neck is stretched, the opposite to the direction of movement when it is pushed open the fastening disc bent tongues prevent a backward movement. 15. Twist handle set according to claim 1, characterized, 509827/0145 that the handle provided with a handle neck with the door plate and with the one on the door plate and on the other hand, the spring attached to the trigger neck is held together by a resilient fastening washer which is designed as a stop disc at its edge and which has a hole in the middle, into which resilient tongues extend into slots in the trigger neck and into the resilient tongues extend into it, which are pushed against the trigger neck pushed through the hole support, the bent against the direction of movement when pushing on the fastening disc Tongues prevent backward movement. 16. Twist handle set according to claim 1, characterized, that the handle provided with a handle neck with the door plate and with the one on the door plate and on the other hand, the spring attached to the trigger neck is held together by a resilient fastening washer which is designed as a stop disc at its edge and which has a hole in the middle, into which resilient tongues extend against the trigger neck pushed through the hole support, the bent against the direction of movement when pushing on the fastening disc Tongues prevent backward movement. 17. A method for producing the rotary handle set according to claims 1 to 16,
characterized, 50 9827 / 0U5 that a piece is cut off from a pressed strand as a pusher and pusher neck, that a hole is drilled into the front of the trigger neck, that the front of the handle neck is slotted, that before or after the assembly of the door plate and spiral spring an insert is inserted into the hole in the trigger neck and its outwardly protruding tongues in the slots in the trigger neck are inserted and then the spring steel stop plate over the end of the door handle neck is pushed against the spring and the insert. 18. The method according to claim 17. »
characterized, that the sides of the trigger neck to smaller dimensions before or after drilling and slotting be processed. 509827/0145 , is ... Blank page