Note: Descriptions are shown in the official language in which they were submitted.
Adjustment device
Technical field
The invention relates to an adjusting device according to the preamble of
claim 1.
Prior art
Such adjusting devices are already known and used in many forms and
configurations.
In this context, reference is made to DE 10 2018 106 419 Al, which discloses
an
adjusting device for a rear seat according to the preamble of claim 1.
For example, the DE 10 2015 121 204 Al discloses a seat fitting for a motor
vehicle
seat in which a body connection sheet has an accident stop in which an
accident catch
hook engages in the event of an accident.
Object of the invention
The object of the present invention is to overcome the disadvantages of the
prior art.
In particular, an adjustment device is to be provided which is intended to
eliminate
creaking noises and unwanted play occurring in electrical adjustment devices
when
adjusting the backrest.
Solution of the object
The features according to the characterizing park of claim 1 lead to the
achievement of
the object.
Preferred embodiments can be found in the dependent claims.
An adjustment device according to the invention is provided for adjusting the
inclination
of a backrest. This primarily concerns a motor vehicle rear seat. In the event
of a rear-
end collision, the rear seat in particular is subjected to strong forces.
Under the
influence of these forces, the rear seat bench should not fold down and
thereby transfer
energy to the occupants. In everyday use, the aim is to prevent creaking
noises caused
by the tilt adjustment, which are regularly caused by existing play.
1.
Date Recue/Date Received 2022-08-17
First and foremost, according to the invention, a trough-shaped slide bushing
or a
trough-shaped spring slide bushing is arranged between the two sheets in the
installed
position in a force-storing manner. The trough-shaped slide bushing or the
trough-
shaped spring slide bushing are arranged in the installed position in such a
way that
toothed racks for adjustment are embraced and arranged between the two sheets.
In
this context, force-storing means that the trough-shaped slide bushing or the
trough-
shaped spring slide bushing are arranged in such a way that they are held
between
the two sheets in a defined manner without play. This in turn means that it
may be a
matter of defined clamping, fixing and/or holding. Fixing can take place, for
example,
by joining or welding or bonding.
In one embodiment, a Z-lug is used. The Z-lug is formed to project from one of
the
sheets to the other of the sheets. In this process, the Z-Iug is cut free from
one of the
sheets in such a way that the Z-lug can be bent out from the respective sheet
while
still forming a tight connection with the sheet. Typically, this process
creates an
opening in the sheet that substantially corresponds to the shape and dimension
of the
Z-lug. In the installed condition, the Z-Iug is bent out of the sheet towards
the other
sheet.
For this purpose, among other things, a trough-shaped slide bushing without
springing
is used in the installation position, which surrounds the toothed rack and is
arranged
between the two sheets, wherein the trough-shaped slide bushing is supported
by the
Z-lug, wherein the Z-lug projects from one of the sheets to the other of the
sheets and
thereby holds the trough-shaped slide bushing in a supporting manner. In this
case,
the play and the fixing with the Z-lug are adjusted during manufacture or
installation in
such a way that a defined play is permitted or completely excluded. The
adjustment of
the play or the fixing is carried out by means of caulking through the Z-lug
and/or
welding of the Z-Iug to the trough-shaped slide bushing.
Within the context of the invention, in the installed position generally means
the
condition which is present as a finished component for installation in a rear
seat of a
motor vehicle.
2
Date Recue/Date Received 2022-08-17
The trough-shaped slide bushing can be made of plastic and can thus be
designed
flexibly, as can the associated choice of materials.
In a further embodiment, a trough-shaped spring slide bushing, which surrounds
the
toothed racks and is arranged between the two sheets, is arranged in the
installed
position in such a way that the trough-shaped spring slide bushing is held in
a
supporting manner by the two sheets. Supported means that the trough-shaped
spring
slide bushing is fixed between the two sheets in such a way that the flexible
elements
of the trough-shaped spring slide bushing are pretensioned in a force-
absorbing
manner and in a defined form.
In the further embodiment according to the invention, the trough-shaped spring
slide
bushing is used instead of a trough-shaped slide bushing to achieve the
solution
according to the invention. For this purpose, among other things, the trough-
shaped
spring slide bushing is used in the installation position in such a way that
it surrounds
the toothed racks and is arranged between the two sheets, wherein the trough-
shaped
spring slide bushing is supported by the Z-lug, wherein the Z-lug projects
from one of
the sheets to the other of the sheets and thereby holds the trough-shaped
spring slide
bushing in a supporting manner. In the installation position means the
condition that
exists as a finished component for installation in a rear seat of a motor
vehicle. The
trough-shaped spring slide bushing has the characteristic that it has a force-
absorbing
and possibly force-dispensing function towards the Z-lug. In this way, for
example, the
adjustment of the play can be carried out more easily, since the flexible
characteristic
of the trough-shaped spring slide bushing means that a sufficient exclusion of
the play
can be achieved even with comparatively little caulking of the Z-lug towards
the trough-
shaped spring slide bushing.
The trough-shaped spring slide bushing is also preferably made of plastic. In
addition
to the choice of material, additional flexibility is provided by appropriate
spring
constructions, as described in the following.
The toothed racks run in the trough-shaped spring slide bushing or the trough-
shaped
slide bushing between the two sheets and are guided on the upper side by two
freely
rotatable toothed wheels in front of and behind the drive pinion. The gears
are
3
Date Recue/Date Received 2022-08-17
positioned by a rivet, which also serves as a further element connecting the
two sheets
together.
Two screws, which are not described in detail, connect the two sheets of the
adjustment device to the body of the vehicle. The lug is the connecting
element to the
backrest and engages in the backrest lock.
In one embodiment, the Z-lug extends from one of the sheets to the other
sheet. The
Z-lug is pressed over in the installation position towards the trough-shaped
slide
bushing. By overpressing the Z-lug in the installation position towards the
trough-
shaped slide bushing, the existing play can be contained in the manner
described.
In another embodiment, the trough-shaped spring slide bushing is merely held
in a
supporting manner by the Z-lug. Overpressing of the Z-lug, as described for
the trough-
shaped slide bushing, is not excluded in principle, but in many cases is not
necessary
due to the flexible elements of the trough-shaped spring slide bushing.
In another embodiment, the Z-lug projects from the second sheet into a first
sheet
recess of the first sheet. In this case, the Z-lug is welded to an edge
portion of the first
sheet recess. This is a cumulative or alternative form of reducing the play of
the
adjustment device.
The Z-lug is preferably bent out of a first sheet recess of the first sheet.
This has the
advantage of simpler manufacturability, since the Z-lug is punched out of the
first sheet
on three edges and the resulting lug is then bent in the Z-direction by the
connected
edge, so that the Z-lug according to the invention is formed.
The trough-shaped spring slide bushing has a trough base from which a first
side wall
and a second side wall protrude along the respective longitudinal extent of
the trough
base. This creates a construction that is U-shaped in section. This allows the
toothed
racks to be accommodated without play in a particularly advantageous manner.
Furthermore, the trough base has a spring carriage on the side projecting away
from
the side walls, which is flexibly arranged with spring legs against the trough
base,
4
Date Recue/Date Received 2022-08-17
wherein the spring carriage has a pressure point in the center. The advantage
of this
design is that it can respond to different production tolerances.
Furthermore, the side walls each have a clip foot, wherein the respective clip
foot is
retracted into clip openings of the two sheets in the installation position.
This allows
the trough-shaped spring slide bushing to be fastened and adjusted quickly and
easily
between the two sheets.
The adjustment device according to the invention has a drive. This drive can
be an
electric motor. The drive comprises an output pinion. The output pinion
projects
through a first sheet towards a second sheet, whereby the output pinion
adjusts a
toothed rack, whereby the toothed rack is guided between the first sheet and
the
second sheet. When the toothed rack is adjusted, the inclination of the
backrest of the
motor vehicle rear seat is also adjusted in a desired manner.
The drive is provided by the pinion of an electric motor engaging in the
toothing of the
toothed racks. The gear is self-locking to keep the toothed rack in position.
The drive
in the form of the electric motor is bolted to both sheets. The output shaft
is guided by
a slide bushing in the vehicle-side connecting sheet, i.e. the second sheet.
The electrically operated adjustment device is intended to electrically adjust
the
backrest of a 2nd or 3rd row rear seat of a vehicle. For this purpose, the
electric motor
drives the toothed racks via gear and pinion through their toothing and shifts
the
position of the lug in both directions in order to adjust the corresponding
backrest
inclination.
In the event of a crash, the force is transmitted from the backrest via the
lug to the
housing via the toothed racks. The two toothed racks move towards each other,
the
gear wheels cause the rack to jam and transfer the force to the two sheets and
the
vehicle.
The adjustment device shall have a small amount of play in the toothing.
However, this
play would have a negative impact on the running behavior and the subjective
feel.
The backrest could move back and forth minimally and thus cause noise. To
prevent
Date Recue/Date Received 2022-08-17
this from happening, the manufacturing tolerances are eliminated by a separate
process after assembly. This is achieved, for example, by overpressing the Z-
lug to
the trough-shaped spring slide bushing and/or a welding point that connects
the Z-lug
to the opposite sheet and thus provides a firm base for the trough-shaped
spring slide
bushing in the installation position.
For this purpose, the play is measured and the Z-lug is adjusted upwards or
downwards in the Z-direction. The distance between the teeth of the toothed
racks is
thus adjusted. If the expected play is present, the Z-link is secured by means
of a spot
weld or caulking or overpressing. This reduces the play via the trough-shaped
spring
slide bushing and the toothed racks on the gear wheels and eliminates or at
least
noticeably reduces the play in the adjusting device. During the overpressing,
the
trough-shaped spring slide bushing acts as play compensation with a lower
flexible
area that is designed for overpressing. In this case, the play is compensated
for by the
manufacturing tolerances via the flexible effect of the plastic element, i.e.
the trough-
shaped spring slide bushing. To prevent the toothed racks from jumping out of
the
toothing in the event of an accident or crash, a stop area is provided in the
center to
limit the spring deflection. Additional play adjustment of the adjustment
device is not
necessary.
In detail, the Z-lug on the opposite sheet is pushed into the opposite sheet
recess
into/to which the Z-lug projects during assembly of the adjustment device. The
trough-
shaped spring slide bushing in which the toothed racks find their lower
bearing position
now rests on the Z-lug. The upper bearing position of the toothed racks is
defined by
the two gear wheels. The drive pinion of the drive engages in the toothing of
the toothed
racks from above in the installation position and can adjust them.
In addition to the toothed rack, another toothed rack is also present. The two
toothed
racks are connected to each other, whereby the toothed rack and the further
toothed
rack are arranged parallel to each other, whereby the toothed rack and the
further
toothed rack are identical.
The toothed racks are designed as stamped parts and have toothing on the upper
side.
Two racks are used parallel to each other for a sufficiently large engagement
surface.
6
Date Recue/Date Received 2022-08-17
The two toothed racks are connected at one end by a rivet and at the other end
by the
riveted lug. The toothed racks have a rack groove opening at one end and an
insertion
opening at the other.
Two racks are used parallel to each other for a sufficiently large engagement
surface.
The two racks are connected by a rivet at the rear end and by the riveted lug
at the
front end.
The radius of the rack is adapted to the desired kinematics of the backrest.
In the event
of an overload, the two toothed racks move relative to each other and tilt
against the
gear wheels. This in turn prevents the toothed racks from slipping.
The radius of the toothed racks is adapted to the desired kinematics of the
backrest.
In the event of an overload, both toothed racks shift relative to each other
and tilt
against the gear wheels. This in turn prevents the toothed racks from
slipping.
The drive is provided by the output pinion of an electric motor engaging in
the toothing
of the rack. The gear is self-locking to hold the rack in position. The motor
is bolted to
both sheets. The drive shaft belonging to the output pinion is guided by a
slide bushing
in the second sheet on the vehicle side.
Furthermore, a first gear wheel and a second gear wheel are rotatably held
between
the first sheet and the second sheet, the first gear wheel running ahead of
the output
pinion and the second gear wheel running behind the output pinion. In
addition, a
trough-shaped spring slide bushing is arranged between the first sheet and the
second
sheet. The toothed racks run in the trough-shaped spring slide bushing between
the
two sheets, with the two freely rotatable gear wheels located on the upper
side of the
toothed racks. The gear wheels are each positioned by a first gear rivet for
the first
gear wheel and a second gear rivet for the second gear wheel. The two gear
rivets
also serve as a further element for connecting the two sheets together.
Further, the first sheet comprises a first skid and a sheet wall, wherein the
sheet wall
includes a pinion opening. Similarly, the second sheet comprises a second skid
and a
sheet trough, the sheet trough having a slide bushing opening.
7
Date Recue/Date Received 2022-08-17
Both skids each have a first fastening hole and a second fastening hole. This
connects
the two sheets to the vehicle body. Two screws connect the two sheets of the
adjusting
device to the vehicle body.
8
Date Recue/Date Received 2022-08-17
Detailed description of the figures
Further advantages, features and details of the invention result from the
following
description of preferred embodiments and from the drawings; these show in
Figure 1 an exploded view of the adjustment device according to the
invention;
Figure 2 the adjusting device according to Figure 1 in a first end
position;
Figure 3 the adjusting device according to Figure 1 in a design position;
Figure 4 the adjusting device according to Figure 1 in a second end
position;
Figure 5 a view of a first sheet (13);
Figure 6 a view of a second sheet (14);
Figure 7 an enlarged view of a part of Figure 6 and a partial sectional
view of
Figure 3;
Figure 8 an enlarged view of a part of the adjusting device according to
the
invention;
Figure 9 an oblique top view of a trough-shaped spring slide bushing;
Figure 10 a side view of the trough-shaped spring slide bushing according
to Figure
9.
Figure 11 is an oblique top view of a trough-shaped slide bushing.
9
Date Recue/Date Received 2022-08-17
Embodiment
Figure 1 shows an exploded view of the adjustment device according to the
invention.
There, a drive 1 in the form of an electric motor is shown, which drives an
output pinion
2. The output pinion 2 is an output pinion gear wheel. A receptacle 23 is
arranged
between the output pinion 2 and the drive 1. The output pinion 2 projects away
from
the drive 1 through the receptacle 23.
Further, a first sheet 13 is provided. The first sheet 13 primarily comprises
a sheet wall
26 and a first skid 24. The sheet wall 26 extends for approximately half the
length of
the first skid 24, and projects away from the first skid 24 along this length.
In doing so,
the sheet wall 26 and the first skid 24 form an angle of more than 900 at
which they
extend away from each other. Overall, the first sheet 13 has an L-shape. In
the
transition of the sheet wall 26 to the first skid 24, a shoulder 34 is
present. This shoulder
34 causes the sheet wall 26 to continue on a different plane than the first
skid 24.
Furthermore, the first sheet 13 has a pinion opening 22 approximately
centrally on the
sheet wall 26. The pinion opening 22 serves to ensure that the output pinion 2
engages
through the sheet wall 26 in the assembled state.
Further shown is a first gear wheel 5 and a second gear wheel 6. The first
gear wheel
has a first through-hole 20. The second gear wheel 6 has a second through-hole
21.
The output pinion 2 and the two gear wheels 5, 6 have the same outside
diameter and
the same tooth geometries.
A toothed rack 3a is also shown. In addition to the toothed rack 3a, a further
toothed
rack 3b is present. The toothed rack 3a and the further toothed rack 3b are
identical,
which are joined together by means of a toothed rack rivet 9. The two toothed
racks
3a, 3b are identical and congruently arranged next to each other. Congruent
means
that the two toothed racks 3a, 3b are arranged to each other in such a way
that all
essential features are parallel next to each other in such a way that they
appear to be
one piece. In the event of an overload, such as a rear-end collision, both
toothed racks
3a, 3b shift relative to each other and tilt against the gear wheels 5, 6.
This in turn
prevents the toothed racks 3a, 3b from slipping. To do this, the toothed rack
rivet 9 is
Date Recue/Date Received 2022-08-17
inserted into a rack rivet opening 29 of the toothed racks 3a, 3b. Then the
two identical
toothed racks 3a, 3b are riveted to each other. The toothed racks 3a, 3b have
a bend.
The radius of the toothed racks 3a, 3b is adapted to the desired kinematics of
the
backrest. At one end, the toothed racks 3a, 3b have the rack rivet opening 29.
At the
other end, the toothed racks 3a, 3b have two insertion openings 17. In
addition, the
toothed racks 3a, 3b each have a toothed rack stop 36 in the area of the rack
rivet
opening 29.
The individual toothed racks 3a, 3b are designed as stamped parts and have
toothing
on the upper side. The upper side is the side of the toothed racks 3a, 3b
facing away
from the side with the toothed rack stop 36. At least two toothed racks 3a, 3b
are used
parallel to each other to provide a sufficiently large engagement surface. The
two
toothed racks 3a, 3b are connected at one end by the toothed rack rivet 9 and
at the
other end by the riveted lug 4.
The strength of the toothed rack rivet 9 and/or the riveted lug 4 allows the
adjustment
device to be adapted to the conditions and the targeted impact speeds, for
example in
a rear-end collision, so that the two toothed racks 3a, 3b move apart at the
right time
and allow the entire device to jam.
The insertion openings 17 pass through both toothed racks 3a, 3b and serve to
receive
the lug 4. The lug 4 describes a partial circle and has a fastening opening
18. The lug
4 is the connecting element to a backrest of a motor vehicle seat and, for
this purpose,
drops into a backrest lock which is not shown. The lug 4 is inserted into the
insertion
openings 17 of the toothed racks 3a, 3b and riveted.
Furthermore, a trough-shaped spring slide bushing 40 is shown. In the
preferred
embodiment, the trough-shaped spring slide bushing 40 is made of plastic. The
trough-
shaped spring slide bushing 40 has a U-shape. In the installed position, i.e.
in the
installed state, the trough-shaped spring slide bushing 40 surrounds the
toothed racks
3a, 3b.
As shown in Figures 9 and 10, the trough-shaped spring slide bushing 40 is
configured
in such a way that the trough-shaped spring slide bushing 40 has a trough base
41
11
Date Recue/Date Received 2022-08-17
from which a first side wall 42 and a second side wall 43 protrude along the
respective
longitudinal extent of the trough base 41.
The trough base 41 has a spring carriage 32 on the side projecting away from
the side
walls 42, 43, which is flexibly arranged with spring legs 35 against the
trough base 41,
wherein the spring carriage 32 has a pressure point 33 in the center.
The side walls 42, 43 each have a clip foot 10, 11, wherein the respective
clip foot 10,
11 is retracted into clip openings of the two sheets 13, 14 in the installed
position.
It can further be seen that the trough-shaped spring slide bushing 40 forms
respective
trough stops 19 in the end region of the longitudinal extent of the trough-
shaped spring
slide bushing 40, which are formed away from the trough base 41 from the
region of
the side walls 42, 43. Thereby, the trough stops 19 enclose a part of the
sheets 13, 14.
The trough-shaped spring slide bushing 40 thus facilitates the adjustment of
the
toothed racks 3a, 3b to different positions and thus also the adjustment of
the
inclination of the backrest of the motor vehicle seat.
Figure 11 shows a trough-shaped slide bushing 46 which is identical in basic
construction to the trough-shaped spring slide bushing 40. In consequence, the
trough-
shaped slide bushing 46 also has the trough base 41, with both flanking side
walls 42,
43, and the clip feet 10, 11 projecting away from the trough base 41 on the
side walls
42, 43. The two trough stops 19 are also formed in each case at the ends in
the
longitudinal extension. Only the spring elements in the form of the spring
carriage 32,
which is flexibly arranged with spring legs 35 against the trough base 41 and
has a
pressure point 33 in the middle, are missing in the trough-shaped slide
bushing 46.
Therefore, the explanations for the other figures should also apply to figure
11 as soon
as the features of the trough-shaped slide bushing 46 are concerned.
The second sheet 14 primarily comprises a second skid 25 and a sheet trough
27. The
sheet trough 27 extends for approximately half the length of the second skid
25, and
projects away from the second skid 25 along this length. In doing so, the
sheet trough
12
Date Recue/Date Received 2022-08-17
27 and the second skid 25 form an angle of more than 900 at which they extend
away
from each other. Overall, the second sheet 14 has an L-shape.
Further, the second sheet 14 has a slide bushing opening 28 approximately
centered
on the sheet trough 27. The slide bushing opening 28 accommodates a slide
bushing
12. In the assembled state, the output pinion 2 is guided by a slide bushing
12 in the
vehicle-side second sheet 14.
Further shown is a first gear wheel rivet 7 and a second gear wheel rivet 8.
The first
gear wheel rivet 7 engages the sheet wall 26 through the sheet trough 27, the
first
through-hole 20 of the first gear wheel 5, and opens into the receptacle 23.
In the
installed state, the first gear wheel rivet 27 serves as the axis of rotation
for the first
gear wheel 5. The second gear wheel rivet 8 also engages through the sheet
trough
27, the second through-hole 21 of the second gear wheel 6, the sheet wall 26
and
opens into the receptacle 23. In the installed state, the second gear wheel
rivet 27
serves as the axis of rotation for the second gear wheel 6. For this purpose,
the
respective components have bores and/or threads.
Furthermore, a first sheet screw 15 and a second sheet screw 16 are shown.
They
primarily serve to fasten the first sheet 13 and the second sheet 14 to each
other and
to the receptacle 23. For this purpose, the respective components have holes
and/or
threads.
In the assembled state, the toothed rack 3a and the further toothed rack 3b
are guided
and held on the longitudinal sides on the one hand by the trough-shaped spring
slide
bushing 40 and on the other hand by the first gear wheel 5 and the second gear
wheel
6. The two gear wheels 5, 6 form the counter bearing to the trough-shaped
spring slide
bushing 40. The two gear wheels 5, 6 are mounted on the side of the toothed
racks
3a, 3b that does not have the toothed rack stop 36.
According to the invention, the second gear wheel 6 has a second through-hole
21,
wherein a second gear wheel rivet 8 rotatably holds the second gear wheel 6
between
the first sheet 13 and the second sheet 14 through the second through-hole 21.
13
Date Recue/Date Received 2022-08-17
In Figure 2, the adjustment device according to Figure 1 is shown in a first
end position.
In the first end position, the toothed rack 3 is positioned in such a way that
the lug 4 is
displaced towards the sheet trough 27.
Further shown in Figure 2 is a first fastening hole 30 and a second fastening
hole 31.
The two fastening holes 30, 31 serve to fasten the two sheets 13, 14 and thus
the
adjusting device to the vehicle body.
The other components shown in Figure 2 have already been named and appreciated
in Figure 1. The comments on the individual components from Figure 1 also
apply to
the following Figures 2 to 4.
Independently of this, Figure 3 shows the adjustment device according to
Figure 1 in
a design position and, similarly, Figure 4 shows the adjustment device
according to
Figure 1 in a second end position.
In Figure 5, the first sheet 13 is shown alone. The first sheet 13 comprises
the first skid
24 and the sheet wall 26. Between the skid 24 and the sheet wall 26 there is
the
shoulder 34. The first sheet recess 38 is embedded in the shoulder 34. The
first sheet
recess 38 is substantially rectangular in shape. Furthermore, the sheet wall
26 has
circular pinion opening 22.
Figure 6 shows only the second sheet 14. The second sheet 14 has the second
skid
25. Furthermore, the sheet trough 27 is formed after a shoulder. The circular
slide
bushing opening 28 is recessed in the sheet trough 27. In addition, the second
sheet
recess 39 can be seen, from which the Z-lug 37 is stamped out and bent out.
Figure 7 shows a form of fixing the Z-lug 37 In this case, the Z-lug 37 is
pressed in the
installation position in the pressing direction 44 towards the trough-shaped
spring slide
bushing 40 and then or simultaneously fixed with a welding point 45. In the
process,
the welding point 45 connects the Z-lug 37 to the first sheet recess 38.
Figure 8 shows an alternative or cumulative form of eliminating play in the
adjustment
device. In this case, the Z-lug 37 is over pressed in the installed position.
In this case,
14
Date Recue/Date Received 2022-08-17
the Z-lug 37 is over pressed in the installed position towards the trough-
shaped spring
slide bushing 40. An overpressing occurs when the Z-lug 37 is pressed from the
horizontal starting position towards the trough-shaped spring slide bushing
40.
Date Recue/Date Received 2022-08-17
Reference symbol list
1 drive
2 output pinion
3a toothed rack
3b further toothed rack
4 lug
first gear wheel
6 second gear wheel
7 first gear wheel rivet
8 second gear wheel rivet
9 toothed rack rivet
clip foot
11 clip foot
12 slide bushing
13 first sheet
14 second sheet
first sheet screw
16 second sheet screw
17 insertion opening
18 fastening opening
19 trough stop
first through-hole
21 second through-hole
22 pinion opening
23 receptacle
24 first skid
second skid
26 sheet wall
27 sheet trough
28 slide bushing opening
29 rack rivet opening
first fastening hole
31 second fastening hole
32 a spring carriage
33 pressure point
34 shoulder
spring leg
36 toothed rack stop
37 Z-lug
38 first sheet recess
39 second sheet recess
spring slide bushing
41 trough base
42 first side wall
43 second side wall
44 pressing direction
welding point
46 trough-shaped slide bushing
16
Date Recue/Date Received 2022-08-17
