FITTING ARRANGEMENT FOR A LEAF THAT CAN BE MOVED AWAY IN PARALLEL AND CLOSURE ARRANGEMENT FOR A BUILDING OPENING

Abstract

A fitting arrangement for a leaf of a sliding window or door that can be moved away in parallel, includes a control unit having a mounting part for fixing on the leaf and an adjusting part which is displaceable relative to the mounting part for moving the leaf away in parallel. A movement unit is fastened to the control unit and has an energy storage device and an activation element for the energy storage device. A closure arrangement for a building opening, includes a frame, the control unit and the adjusting part. The leaf which, in a closed position, can, by means of the control unit, be brought up to the frame and be moved away from the frame in parallel, so the leaf is displaceable along a guide rail of the frame. The movement unit supports an automatic movement of the leaf along the guide rail.

Claims

1. A fitting arrangement for a leaf of a sliding window or sliding door that can be moved away in parallel, comprising: a control unit having a mounting part for fixing on the leaf and an adjusting part which is displaceable relative to the mounting part for moving the leaf away in parallel; a movement unit fastened to the control unit and having an energy storage device and an activation element for the energy storage device, wherein the energy storage device has a body and a spring-damper unit which is arranged in the body; and wherein the energy storage device has a catch for the activation element which can be latched on the body in a tensioned position of the spring-damper unit.

2. The fitting arrangement according to claim 1, wherein the energy storage device is rigidly connected to the adjusting part.

3. The fitting arrangement according to claim 1, wherein the activation element is rigidly connected to the adjusting part.

4. The fitting arrangement according to claim 1, wherein the body is rigid.

5. The fitting arrangement according to claim 1, wherein the spring-damper unit is designed having a gas spring and/or an oil damper.

6. The fitting arrangement according to claim 1, wherein the spring-damper unit is connected to the catch via a coupling rod, in particular the coupling rod extending through a recess in the adjusting part.

7. The fitting arrangement according to claim 6, wherein the spring-damper unit is connected to the body at one end, in an articulated manner, and in that the spring-damper unit is connected to a carriage at the other end, which carriage is guided displaceably on the body, and in that the coupling rod engages with the carriage.

8. The fitting arrangement according to claim 1, wherein the movement unit has a compression spring.

9. The fitting arrangement according to claim 1, wherein the movement unit has a tension spring.

10. A closure arrangement, in particular a sliding window or sliding door, for a building opening, comprising: a frame; a control unit having a mounting part fixed to the leaf and an adjusting part which is displaceable relative to the mounting part; a leaf which, in a closed position, can, by means of the control unit, be brought up to the frame and moved away from the frame in parallel, so that said leaf is displaceable along a guide rail of the frame; a movement unit fastened to the control unit and having an energy storage device and an activation element for the energy storage device for supporting a movement, preferably for moving the leaf automatically, and/or for braking a movement of the leaf along the guide rail; wherein the energy storage device has a body and a spring-damper unit which is arranged in the body; and wherein the energy storage device has a catch for the activation element which can be latched on the body in a tensioned position of the spring-damper unit.

11. The closure arrangement according to claim 10, wherein the movement unit is designed to assist in bringing the leaf into the closed position.

12. The closure arrangement according to claim 10, wherein the movement unit is designed to assist in removing the leaf from the closed position.

13. The closure arrangement according to claim 10, wherein an activation element of the movement unit is arranged laterally next to an energy storage device of the movement unit.

14. The closure arrangement according to claim 10, wherein an activation element of the movement unit is arranged above an energy storage device of the movement unit.

15. The closure arrangement according to claim 10, wherein the leaf has a mechanism for controlling a movement of the adjusting part of the control unit with respect to the mounting part.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The invention is shown in the drawings, in which:

[0052] FIG. 1 is a schematic perspective view of a closure arrangement according to the invention in the form of a sliding door comprising a fitting arrangement according to the invention, which connects an openable leaf to a frame;

[0053] FIG. 2 is a schematic cross section through the closure arrangement of FIG. 1 in the region A;

[0054] FIG. 3 is an enlarged schematic view of the region A of the closure arrangement of FIG. 1;

[0055] FIG. 4 is a schematic plan view of the leaf and the fitting arrangement of the closure arrangement of FIG. 1;

[0056] FIG. 5 is a schematic perspective view of the fitting arrangement of the closure arrangement of FIG. 1 comprising a control unit having a mounting part and an adjusting part displaceably mounted thereon, on which a movement unit is latched, on which movement unit two guide rollers are arranged;

[0057] FIG. 6 is a schematic plan view of the fitting arrangement of FIG. 5;

[0058] FIG. 7 is a schematic perspective view of a fitting arrangement according to the invention comprising two control units, between which a movement unit is arranged, and on each of which a guide roller is arranged;

[0059] FIG. 8 is a schematic perspective view of a fitting arrangement according to the invention comprising a control unit to which a movement unit is fastened, a catch and a spring-damper unit of the movement unit being arranged on different sides of the control unit;

[0060] FIG. 9 is a schematic perspective view of a fitting arrangement according to the invention comprising two control units and a movement unit, which movement unit has a spring-damper unit with a compression spring;

[0061] FIG. 10 is a schematic perspective view of a fitting arrangement according to the invention having a control unit and a movement unit, a catch of the movement unit facing upward and being able to be latched on a body of the movement unit in a tensioned position of a spring-damper element;

[0062] FIG. 11 is a schematic perspective view of a fitting arrangement according to the invention comprising a control unit and a movement unit, which movement unit has a spring-damper unit with a tension spring;

[0063] FIG. 12 shows a control unit for a fitting arrangement according to the invention, an activation element for a movement unit being arranged on an adjusting part of the control unit which is displaceable with respect to a mounting part;

[0064] FIG. 13a is a schematic perspective view of a fitting arrangement according to the invention, which has a movement unit with a rigid body and with a compression spring, the compression spring being connected to a catch via a coupling rod, the compression spring being in a relaxed position;

[0065] FIG. 13b shows the fitting arrangement according to FIG. 13a in a schematic longitudinal section;

[0066] FIG. 14a is a schematic perspective view of the fitting arrangement of FIG. 13a, the compression spring being in a tensioned position and the catch being latched on the body;

[0067] FIG. 14b shows the fitting arrangement according to FIG. 14a in a schematic longitudinal section.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0068] FIG. 1 shows a closure arrangement 10 for a building opening. The closure arrangement 10 is designed as a sliding door. The closure arrangement 10 comprises a frame 12 and a movable leaf 14. The closure arrangement 10 here also comprises a non-openable fixed field 16. In FIG. 1, the leaf 14 is in a closed position in which it covers a door opening 18. By displacing the leaf 14 in front of the fixed field 16, the door opening 18 can be cleared. In order to open the closure arrangement 10, the leaf 14 is moved away from the frame 12 while maintaining its parallel orientation.

[0069] The leaf 14 is held on the frame 12 and guided via a fitting arrangement 20. The fitting arrangement 20 is arranged in the region denoted by “A” in FIG. 1. In the region “A” in FIG. 1, the frame 12 and an upper leaf spar 22 are shown in broken form.

[0070] FIG. 2 shows a cross section through the closure arrangement 10 of FIG. 1 in the region “A.” FIG. 3 shows the region “A” of FIG. 1 in an enlarged perspective view.

[0071] In the closed position shown in FIG. 1, the leaf 14 can be pressed against the frame 12 and moved away from the frame 12. In FIG. 2, the leaf 14 is in a parallel moved-away position. There is a gap 26 between the leaf 14 and a peripheral seal 24 of the frame 12. In the moved-away position, the leaf 14 can be displaced along a guide rail 28 of the frame 12 in order to clear or close the door opening 18.

[0072] The design and function of the fitting arrangement 20 are described in more detail below with additional reference to FIGS. 4, 5 and 6. FIG. 4 shows the fitting arrangement 20 and the leaf 14 in a plan view. FIGS. 5 and 6 show the fitting arrangement 20 in a perspective view and a plan view, respectively.

[0073] The fitting arrangement 20 engages into the guide rail 28 with two guide rollers 30. The guide rollers 30 are arranged on the upper side on a body 32 of a movement unit 34 of the fitting arrangement 20. The body 32 is fastened to a control unit 36. The control unit 36 has a mounting part 38 which is non-displaceably fixed to the leaf 14. The control unit 36 also has an adjusting part 40, which is displaceably held and guided on the mounting part 38. The body 32 of the movement unit 34 is fastened to the adjusting part 40. Here, the adjusting part 40 and the body 32 are latched together. For this purpose, the adjusting part 40 has four latching elements 42 arranged opposite one another in pairs.

[0074] The movement unit 34 serves to support a movement of the leaf 14 along the guide rail 28. Here, the movement unit 34 serves to automatically bring the leaf 14 into the closed position when the leaf 14 has almost reached the closed position during closing. For this purpose, the movement unit 34 has an energy storage device 44 (mainly covered by the body 32 in FIGS. 3 to 6).

[0075] The energy storage device 44 interacts with an activation element 46 of the movement unit 34; cf. FIGS. 2 and 3. The activation element 46 is arranged on the frame 12. Here, the activation element 46 is fastened to the guide rail 28 by means of a screw connection, in particular by means of two screws 48.

[0076] The energy storage device 44 comprises a spring-damper unit 50 (hidden by the body 32), which is designed here having an oil-damped gas spring. A catch 54 is connected via a piston rod 52 (see FIG. 5) to the spring-damper unit 50. The spring-damper unit 50 and the catch 54 are arranged on different sides of the control unit 36. The spring-damper unit 50 presses the catch 54 into the position shown at the rear end 58 in the closing direction 56 of a groove 60. The position shown of the catch 54 corresponds to a relaxed position of the spring-damper unit 50.

[0077] The catch 54 protrudes laterally out of the body 32. The activation element 46 (cf. FIGS. 2 and 3) is accordingly arranged laterally next to the energy storage device 44. The catch 54 has two legs 61, 62 (cf. FIGS. 4 to 6) in order to engage over the activation element 46 on both sides. In other words, the activation element 46 can be received between the legs 61, 62 of the catch 54.

[0078] The two legs 61, 62 are of different lengths. The shorter leg 62 is arranged at the front in the closing direction 56. When the leaf 14 is opened, the spring-damper unit 50 is tensioned by the catch 54 holding onto the activation element 46 until the catch 54 has reached the front end 64 of the groove 58 in the closing direction 56. In this tensioned position of the spring-damper unit 50, the catch 54 is pivoted so that the short leg 62 is drawn into the body 32. As a result, the catch 54 releases the activation element 46; the leaf 14 can be opened further. In the tensioned position of the spring-damper unit 50, the pivoted-in catch 54 latches on the body 32, so that the potential energy supplied to the spring-damper unit 50 when the leaf 14 is opened is stored.

[0079] When the leaf 14 is closed, shortly before reaching the closed position, the longer leg 61 of the catch 54 strikes the activation element 46. The catch 54 is thereby released from the latching and the shorter leg 62 pivots outward so that the catch 54 overlaps the activation element 46 on both sides. The spring-damper unit 50 now brakes the leaf 14. Preferably, the spring-damper unit can bring about greater braking of the leaf 14 when the leaf 14 is closed more quickly. Braking the leaf 14 prevents it from hitting the frame 12 hard and bouncing back therefrom. After braking, the spring-damper unit 50 presses the leaf 14 into the closed position. In the process, the spring-damper unit 50 relaxes until the catch 54 reaches the rear end 58 of the groove 60 (corresponding to the closed position of the leaf 14). In this position, potential energy can still be stored in the spring-damper unit 50. In other words, the spring-damper unit 50 can also exert a force acting in the closing direction 56 on the leaf 14 in the closed position. As a result, the movement unit 34 is able to bring the leaf 14 reliably into the closed position.

[0080] A mechanism 66 is provided for bringing the leaf 14 up to the frame 12 or moving it away from the frame 12 in the closed position; see in particular FIG. 4. The mechanism 66 comprises a handle 68. The handle 68 is arranged on the leaf 14. The handle 68 is coupled to a drive rod 70. By turning the handle 68, the drive rod 70 is displaced. The drive rod 70 is coupled to the control unit 36 in a manner not shown here. The drive rod 70 can, for example—as shown in FIG. 12—have a pin 94 which engages in gates in the mounting part 38 and the adjusting part 40. When the drive rod 70 is displaced, the adjusting part 40 is displaced relative to the mounting part 38, so that the leaf 14 is placed against the frame 12 or is moved away from the frame 12.

[0081] As can be seen from FIGS. 3 and 4, a further control unit 72 is arranged on the leaf 14. The further control unit 72 is designed similarly to the control unit 36. A further guide roller 76 is arranged on another adjusting part 74 of the further control unit 72. The further adjusting part 74 is movable with respect to a further mounting part that is fixed to the leaf 78. The further control unit 72 can be coupled to the mechanism 66 so that the movement of the further adjusting part 74 with respect to the further mounting part 78 can be actively controlled. Alternatively, the further control unit 72 can follow the movement of the leaf 14 passively.

[0082] FIG. 7 shows a second embodiment of a fitting arrangement 20. A movement unit 34 of the fitting arrangement 20 is coupled to two control units 36 via tabs 80. A guide roller 30 is arranged on each of the adjusting parts 40 of the control units 36 on the upper side. At least one of the control units 36 is actively controlled; both control units 36 are preferably actively controlled. Otherwise, the movement unit 34 and the control units 36 of the fitting arrangement 20 of FIG. 7 correspond in design and function to the movement unit 34 and the control unit 36, respectively, of the fitting arrangement 20 according to the previously described FIGS. 5 and 6.

[0083] FIG. 8 shows a third embodiment of a fitting arrangement 20. A movement unit 34 is connected, in particular via a bolt 82, to a single adjusting part 40 of a control unit 36. A guide roller 30 is preferably arranged on the upper side of the adjusting part 40 of the control unit 36. A spring-damper unit 50 and a catch 54 of the movement unit 34 are preferably arranged on different sides of the control unit 36. At its end facing away from the catch 54, a body 32 of the movement unit 34 carries a further guide roller 30. Otherwise, the movement unit 34 and the control unit 36 of the fitting arrangement 20 of FIG. 8 correspond in design and function to the movement unit 34 and the control unit 36, respectively, of the fitting arrangement 20 according to the previously described FIGS. 5 and 6.

[0084] FIG. 9 shows a fourth embodiment of a fitting arrangement 20. A movement unit 34 is latched to a first control unit 36, here in a central region of a body 32 of the movement unit 34. In the closing direction 56 at the front, a second control unit 36 is connected to the body 32 via tabs 80. A first guide roller 30 is arranged on the upper side of an adjusting part 40 of the second control unit 36. A second guide roller 30 is arranged at the rear end of the body 32 in the closing direction 56. A spring-damper unit 50 and a catch 54 of the movement unit 34 are arranged on different sides of the control unit 36. Otherwise, the movement unit 34 and the control units 36 of the fitting arrangement 20 of FIG. 9 correspond in design and function to the movement unit 34 and the control unit 36, respectively, of the fitting arrangement 20 according to the previously described FIGS. 5 and 6 and with respect to the second control unit 36 of the fitting arrangement 20 according to the previously described FIG. 7.

[0085] FIG. 10 shows a fifth embodiment of a fitting arrangement 20. A guide roller 30 is arranged on the upper side of an adjusting part 40 of the control unit 36 and on a rear end in the closing direction 56 of a body 32 of a movement unit 34. Here, a spring-damper unit 50 of the movement unit 34 is designed having a compression spring. As a result of the arrangement of the spring-damper unit 50, a catch 54 is pretensioned into the position shown by means of the compression spring; there is consequently a conversion of the pushing effect of the spring into a tensile effect on the catch 54. The spring-damper unit 50 and the catch 54 are arranged on different sides of the control unit 36. Here, the catch 54 has legs 61, 62 pointing upward in order to interact with an activation element 46 (only shown schematically) arranged above the spring-damper unit 50 (i.e. further up in the vertical direction). Here, the catch 54 and the activation element 46 are arranged on the control unit 36 in front of the guide roller 30 in the closing direction 56. In the closed position, the guide roller 30 moves in a guide rail 28 until just before the activation element 46. By positioning the activation element 46 and the catch 54 in front of the guide roller 30 and the control unit 36, respectively, in the closing direction 56, the activation element 46 can be arranged within the guide rail 28 without the guide roller 30 colliding with the activation element 46 when a leaf 14 is closed.

[0086] The catch 54 engages via pin-like projections 84 into guide grooves 86 of an immovable part 32a of the body 32 of the moving unit 34, which immovable part 32a is fixed on the adjusting part 40. At the front end in the closing direction 56, the guide grooves 86 each have an angled portion 88. In a tensioned position of the spring-damper unit 50, the pin-like projections 84 of the catch 54 enter the angled portions 88. As a result, on the one hand, the catch 54 is latched on the immovable part 32a of the body 32, so that the spring-damper unit 50 remains tensioned. On the other hand, the short leg 62 of the catch 54 is thereby pivoted downward, so that the catch 54 releases the activation element 46 when a leaf with the fitting arrangement 20 is opened. When the leaf is closed, the long leg 61 strikes the activation element 46. As a result, the pin-like projections 84 are lifted out of the angled portions 88, so that the catch 54 is released from the latching and the spring-damper unit 50 can first brake the leaf 14 and then push it into the closed position.

[0087] A part 32b of the body 32 that is movable with respect to the adjusting part 40 is guided on the adjusting part 40 via a bolt 82. The movable part 32b of the body 32 has elongate holes 100, in which the bolt 82 is displaceable. The spring-damper unit 50 is supported on the adjusting part 40 via a piston rod which is concealed in FIG. 10. The movable part 32b of the body 32 is connected to the catch 54, here by means of a peg 102. Since the compression spring of the spring-damper unit 50 presses the movable part 32b of the body 32 away from the adjusting part 40 counter to the closing direction 56, the catch 54 is pulled by the movable part 32b into the position shown toward the adjusting part 40.

[0088] Otherwise, the movement unit 34 and the control unit 36 of the fitting arrangement 20 of FIG. 10 correspond in design and function to the movement unit 34 and the control unit 36, respectively, of the fitting arrangement 20 according to the previously described FIG. 8.

[0089] FIG. 11 shows a sixth embodiment of a fitting arrangement 20. The fitting arrangement 20 of FIG. 11 substantially corresponds in design and function to the fitting arrangement 20 according to FIG. 10, although a body 32 and a catch 54 of a movement unit 34 are designed differently here. Here, a spring-damper unit 50 of the movement unit 34 is designed having a tension spring. The tension spring pulls the catch 54 into the position shown.

[0090] FIG. 12 shows a control unit 36 for a fitting arrangement. The control unit 36 has a mounting part 38 for fastening to a leaf and an adjusting part 40 which is displaceable relative to the mounting part 38. Here, an activation element 46 of a movement unit, otherwise not shown, of the fitting arrangement is arranged on the adjusting part 40. The activation element 46 projects upward (out of the plane of the drawing) away from the control unit 36.

[0091] A first gate portion 90 extending parallel to a drive rod 70 is formed in the mounting part 38. A second gate portion 92 is formed in the adjusting part 40. The gate portion 92 in the adjusting part 40 extends obliquely to the gate portion 90 in the mounting part 38 or obliquely to the drive rod 70. A pin 94 held on the drive rod 70 engages in the two gate portions 90, 92. When the drive rod 70 is displaced, the adjusting part 40 is thereby displaced in a transverse direction relative to the mounting part 38; cf. arrows 96 and 98.

[0092] FIG. 13a shows a seventh embodiment of a fitting arrangement 20 in a perspective view. In FIG. 13b the fitting arrangement 20 according to FIG. 13a is shown in a longitudinal section.

[0093] A guide roller 30 is arranged on the upper side of an adjusting part 40 of a control unit 36 and on a rear end in the closing direction 56 of a body 32 of a movement unit 34. Here, a spring-damper unit 50 of the movement unit 34 is designed having a compression spring. The spring-damper unit 50 is arranged in the body 32. Here, the body 32 is rigid overall.

[0094] A piston rod 52 of the spring-damper unit 50 is connected in an articulated manner to the body 32, here near the adjusting part 40 with the guide roller 30. The spring-damper unit 50 has a carriage 104 at the other end. A piston housing 106 of the spring-damper unit 50 is received in the carriage 104 and connected to the carriage 104. The carriage 104 is guided on the body 32 such that it can be displaced in a straight line. In order to guide the carriage 104, two side parts 108 of the body 32 each have two guide slots 110. The guide slots 110 each extend in a straight line. Here, the two guide slots 110 are each offset from one another in the side parts 108. The carriage 104 engages into each of the guide slots 110 with one extension 112 in each case.

[0095] The spring-damper unit 50 is connected to a catch 54 of the movement unit 34 via a coupling rod 114. The coupling rod 114 can have tapers 116 at one end by means of which it is hooked into the carriage 104. At the other end, the coupling rod 114 is connected to the catch 54, here via an intermediate element 118. The intermediate element 118 can be connected to the catch 54 in an articulated manner, for example by means of a peg 102. The coupling rod 114 extends through a recess 120 in the adjusting part 40. The recess 120 makes it possible to make the coupling rod 114 straight and to connect the catch 54 and the spring-damper unit 50 to one another in a direct way by means of the straight coupling rod 114.

[0096] The compression spring of the spring-damper unit 50 pretensions the catch 54 into the position shown in FIGS. 13a and 13b. The spring-damper unit 50 is accordingly in a relaxed position in FIGS. 13a and 13b. The compression spring presses the carriage 104 away from the adjusting part 40 by means of the piston housing 106. The catch 54 is entrained, via the coupling rod 114, in guide grooves 86 of the body 32 counter to the closing direction 56 toward the adjusting part 40.

[0097] FIGS. 14a and 14b show the fitting arrangement 20 of FIG. 13a in a perspective and sectional view, respectively, the spring-damper unit 50 being in a tensioned position. The catch 54 is latched in angled portions 88 of the guide grooves 86 in the body 32 by means of pin-like projections 84. As a result, the spring-damper unit 50 is held in the tensioned position shown. In the tensioned position, the piston housing 106 and the carriage 104 are displaced toward the adjusting part 40 in relation to the relaxed position (cf. FIG. 13a, 13b). In contrast, when the spring-damper unit 50 is in the tensioned position, the catch 54 is displaced away from the opening part 40 in the closing direction 56 in relation to the relaxed position.

[0098] Otherwise, the movement unit 34 and the control unit 36 of the fitting arrangement 20 of FIG. 13a-14b correspond in design and function to the movement unit 34 and the control unit 36, respectively, of the fitting arrangement 20 according to the previously described FIG. 10.

[0099] Viewing all of the drawings in combination, the invention relates in particular to a fitting arrangement 20 having a control unit 36 for moving a leaf 14 away from a frame 12 in parallel. A movement unit 34 is provided on the control unit 36. The control unit 36 and the movement unit 34 can be fastened directly to one another. The movement unit 34 facilitates the displacement of the leaf 14 along the frame 12. In particular, the movement unit 34 can support or automatically effect a movement of the leaf 14 into a closed position. In the closed position, the leaf 14 can be placed against the frame 12 or moved away from the frame 12 in parallel.

LIST OF REFERENCE SIGNS

[0100] Closure arrangement 10 [0101] Frame 12 [0102] Leaf 14 [0103] Fixed field 16 [0104] Door opening 18 [0105] Fitting arrangement 20 [0106] Upper leaf spar 22 [0107] Seal 24 [0108] Gap 26 [0109] Guide rail 28 [0110] Guide rollers 30 [0111] Body 32 [0112] Immovable part 32a [0113] Movable part 32b [0114] Movement unit 34 [0115] Control unit 36 [0116] Mounting part 38 [0117] Adjusting part 40 [0118] Latching elements 42 [0119] Energy storage device 44 [0120] Activation element 46 [0121] Screws 48 [0122] Spring-damper unit 50 [0123] Piston rod 52 [0124] Catch 54 [0125] Closing direction 56 [0126] Rear end 58 [0127] Groove 60 [0128] Long leg 61 [0129] Short leg 62 [0130] Front end 64 [0131] Mechanism 66 [0132] Handle 68 [0133] Drive rod 70 [0134] Further control unit 72 [0135] Further adjusting part 74 [0136] Further guide roller 76 [0137] Further mounting part 78 [0138] Tabs 80 [0139] Bolt 82 [0140] Pin-like projections 84 [0141] Guide grooves 86 [0142] Angled portion 88 [0143] Gate portion 90 in mounting part 38 [0144] Gate portion 92 in adjusting part 40 [0145] Pin 94 [0146] Arrows 96, 98 [0147] Elongate holes 100 [0148] Peg 102 [0149] Carriage 104 [0150] Piston housing 106 [0151] Side parts 108 [0152] Guide slots 110 [0153] Extension 112 [0154] Coupling rod 114 [0155] Tapers 116 [0156] Intermediate element 118 [0157] Recess 120