Wiper blade and wiper strip unit for wiper blade

Abstract

The invention relates to a wiper blade (10), comprising at least one spring strip (17, 17a, 17b) and at least one wiper strip unit (11), which has at least one wiper lip (12) and at least one wiper base body (14), wherein the wiper blade (10) has at least one spring strip (17, 17a, 17b) arranged at a distance from the wiper base body (14), in particular at a distance along an axis of symmetry (102) of the wiper blade (10). It is proposed that the wiper strip unit (11) has an elastic spacer element (110, 110a, 110b) for supporting the spring strip (17, 17a, 17b) on the wiper base body (14), the spacer element (110, 110a, 100b) preferably resting against the spring strip (17, 17a, 17b) in a contact manner.

Description

Technical Field

[0001] The invention relates to a wiper blade and a wiper strip unit for a wiper blade. Background Art

[0002] A wiper blade has already been proposed which comprises at least one spring strip and at least one wiper strip unit having at least one wiper lip and at least one wiper basic body having at least one spring strip receptacle for receiving the spring strip. Summary of the invention

[0003] The invention relates to a wiper blade having at least one spring strip and at least one wiper strip unit, the wiper strip unit having at least one wiper lip and at least one wiper base body, wherein the wiper blade has at least one spring strip arranged spaced apart from the wiper base body, in particular spaced apart along an axis of symmetry of the wiper blade. It is proposed that the wiper strip unit has an elastic spacer element for supporting the spring strip on the wiper base body, wherein the spacer element preferably bears against the spring strip in a contacting manner.

[0004] Preferably, a "wiper strip unit" is intended to mean at least one component, in particular a subassembly, of a wiper blade. Preferably, the wiper strip unit is provided for wiping a surface, in particular a surface of a vehicle window, in particular for cleaning the surface and / or for removing fluid from the surface. In particular, the wiper strip unit is provided for direct contact with a surface, in particular a vehicle window. Preferably, the wiper strip unit is provided for use on a vehicle. Preferably, the wiper strip unit is provided for use on a vehicle window, in particular a windshield and / or a rear window and / or on a headlight. The wiper strip unit preferably comprises at least one wiper base body and a wiper lip.

[0005] Preferably, the wiper lip is designed to be in direct contact with a surface, in particular a vehicle windshield, in the operating state of the wiper strip unit. In particular, the wiper lip is designed to adapt to the shape of the surface at least under the action of force, for example by means of spring strips of the wiper blade. Preferably, the wiper lip is made of a natural or artificial elastomer, in particular of plastic and / or of rubber. Preferably, the wiper lip is arranged on the wiper base body, in particular is formed integrally with the wiper base body. Preferably, the wiper lip extends at least substantially parallel to the main extension direction of the wiper strip unit.

[0006] The "main extension direction" of an object is preferably intended to be understood as a direction which runs parallel to the direction of the longest side of a smallest cuboid which completely encloses the object. "Substantially parallel" is intended to be understood in particular to mean an orientation of a direction relative to a reference direction, in particular in a plane, wherein the direction has a deviation relative to the reference direction of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°.

[0007] Preferably, the wiper base body of the wiper strip unit is provided for coupling the wiper strip unit to other components of the wiper blade, which include, for example, at least one spring strip, an end cap, a spoiler, a fastening element, a wiper arm adapter, a retaining spring or the like.

[0008] In particular, the wiper base body is provided for at least partially receiving the spring strip. The wiper base body preferably has a substantially rectangular shape. Preferably, the wiper base body is substantially designed as a hollow body with a first longitudinal cavity. Preferably, the wall of the wiper base body substantially completely surrounds the first longitudinal cavity.

[0009] Preferably, the outer wall surface of the wiper base body together with the cover element defines a second longitudinal cavity. Preferably, the spring strip is arranged inside this second longitudinal cavity. Preferably, the spring strip is smaller than the longitudinal cavity. Preferably, after the spring strip has been arranged in the longitudinal cavity, a compensating free space remains between the wiper base body and the spring strip. Preferably, the main extension direction of the first and second longitudinal cavity runs at least substantially parallel to the main extension direction of the wiper base body and / or the wiper strip unit.

[0010] The term "main extension direction of the receiving portion and / or the recess" shall in particular be understood to mean the main extension direction of the walls which delimit the receiving portion and / or the recess, said walls in particular having an imaginary infinitely thin wall thickness. Preferably, the wiper base body is arranged contactlessly relative to the surface, in particular the vehicle windshield, at least in the operating state of the wiper strip unit. Preferably, the wiper base body consists of a natural or artificial elastomer, in particular plastic and / or rubber.

[0011] Preferably, the wiper lip and the wiper base are made of the same material. Preferably, the wiper lip is formed in connection with the wiper base. Preferably, the wiper lip is formed integrally with the wiper base. Preferably, the wiper lip is formed integrally with the wiper base, in particular in one piece. "Integrally" should especially mean being connected in one piece or materially locked, such as by a welding process and / or an adhesive process, and being molded in such a way that it is particularly advantageous, for example, by manufacturing from a casting and / or by manufacturing by a single-component or multi-component injection molding method. "One-piece" should especially mean being formed in a single piece. Preferably, this single piece is manufactured from a single blank, blank and / or casting, particularly preferably by an injection molding method, in particular a single-component and / or multi-component injection molding method.

[0012] According to an advantageous development of the invention, a main extension direction of the wiper basic body runs at least substantially parallel to a main extension direction of the wiper lip and / or of the wiper strip unit.

[0013] According to the invention, it is now provided that the wiper strip unit has an elastic spacer element. The elastic spacer element has elasticity in particular in the direction of the axis of symmetry. The elastic spacer element is designed to position the spring strip spaced from the wiper base body and press it against a stop surface of the cover element.

[0014] By means of the design according to the invention of a wiper blade with such a spacer element, turning noises can be reduced in an advantageous manner at the individual turning points of the wiping motion. The elastic spacer element is preferably designed to provide a conductive support structure between the wiper base body and the spring strip or the cover element. Due to the relative movement between the spring strip and the wiper strip unit, which is advantageously reduced by the compression, eddy currents can be reduced to a minimum. At the same time, the elasticity of the spacer element in the direction of the axis of symmetry can provide damping in a particularly advantageous manner, so that the noise generation can be advantageously reduced even in conventional wiping motions outside of the turning points.

[0015] Preferably, the elastic spacer element of the wiper strip unit is designed in such a way that a sufficient damping effect can be provided in the direction of the axis of symmetry and at the same time a restoring force provided by the elastic spacer element for stably pressing the spring strip against the cover element in the event of a force acting in the deflection point can be ensured. The spacer element is designed differently from the spring strip.

[0016] By means of the design of the wiper blade according to the invention, the wiper blade is advantageously designed to be elastic. In particular, a wiper strip unit with an integrated spring strip can be elastically deformed with advantageously low forces. In particular, a wiper strip unit with an integrated spring strip can advantageously be deformed easily during a wiping movement. In particular, a wiper strip unit with an integrated spring strip can be provided, with which a low-noise wiping movement can advantageously be carried out.

[0017] Furthermore, advantageous developments and refinements of the features specified in the independent claim result from the measures listed in the dependent claims.

[0018] According to an advantageous development of the invention, the spacer element and the wiper base body are formed in one piece. Preferably, the wiper strip unit having the wiper lip, the wiper base body and the spacer element is formed in one piece, preferably by extrusion from EPDM. Such a spacer element can be produced particularly cost-effectively and easily.

[0019] According to a particularly preferred embodiment of the invention, the spacer element extends substantially in the direction of the axis of symmetry. Preferably, the spacer element passes substantially completely through the compensation free space and thus forms a conductive support structure between the wiper base body and a spring strip arranged spaced apart from the wiper base body.

[0020] According to a particularly preferred development of the present invention, the wiper blade has a covering element opposite to the wiper lip. The covering element is preferably configured as a spoiler. The covering element preferably surrounds the wiper base substantially completely in the vertical direction. The covering element preferably surrounds the second longitudinal cavity.

[0021] According to an advantageous development of the invention, the wiper blade has at least one first longitudinal cavity and at least one second longitudinal cavity, wherein the first longitudinal cavity is formed in the wiper base body and wherein the second longitudinal cavity is formed between the cover element and the outer wall of the wiper base body. Preferably, the spring strip is arranged in the second longitudinal cavity, wherein the spring strip is arranged in abutment against a contact surface of the cover element, and wherein a compensating free space is arranged in the second longitudinal cavity between the spring strip and the wiper base body. Preferably, the compensating free space is designed essentially in the form of a gap.

[0022] Preferably, the spacer element is arranged in a radially outer region of the wiper base body with respect to the axis of symmetry, wherein the spacer element preferably bears against the radially outer region of the spring strip, preferably in contact. The spring strip preferably has a horizontal extension, wherein the spring strip bears against the spacer element in a bearing section, wherein the bearing section is designed to be several times smaller than the horizontal extension of the spring strip. Preferably, the bearing section covers 10%, preferably 7%, preferably 4% of the horizontal extension of the spring strip.

[0023] A particularly simple, dimensionally stable connection of the spring strip can be provided in that the spacer element extends as a contact strip, in particular a contact wall, extending in the longitudinal direction within the contour of the wiper base body. Preferably, the wiper base body has a first outer wall, which extends essentially in the horizontal direction and faces the spring strip, wherein the spacer element is arranged on the first outer wall.

[0024] A particularly preferred embodiment of the invention can be provided in particular in that the spacer element and the first outer wall of the wiper basic body are designed with a concave contour.

[0025] The spring rail is preferably designed in two parts, ie has a first spring rail part and a second spring rail part, wherein the spacer element has at least a first spacer and a second spacer part, wherein each spacer is designed to support at least one spring rail part. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Further advantages are apparent from the following description of the drawings. Two embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain a large number of combined features. A person skilled in the art will also appropriately consider these features individually and combine them into other meaningful combinations.

[0027] in:

[0028] Figure 1 shows a schematic diagram of a wiper blade having a wiper strip unit according to the invention,

[0029] Figure 2a A first embodiment of a wiper blade is shown in a schematic sectional illustration, which comprises a first embodiment of a spacer element.

[0030] Figure 2b A further embodiment of a wiper blade is shown in a schematic sectional view, which has a Figure 2a A first embodiment of the spacer element,

[0031] Figure 3a A further embodiment of a wiper blade is shown in a schematic sectional illustration, which has a second embodiment of a spacer element.

[0032] Figure 3b A further embodiment of a wiper blade is shown in a schematic sectional view, which has a Figure 3a A second embodiment of a spacing element. DETAILED DESCRIPTION

[0033] Figure 1 A wiper blade 10 is shown. The wiper blade 10 comprises at least one spring strip 17 (see FIG. 2 ). The wiper blade 10 comprises at least one wiper strip unit 11. Preferably, the wiper strip unit 11 has a longitudinal direction 50a as a main extension direction. In particular, the longitudinal direction 50a is substantially parallel to the main extension direction of the wiper blade 10. Preferably, the longitudinal direction 50a is at least substantially perpendicular to a prescribed wiping direction 30a, 30b of the wiper blade 10, in particular of the wiper strip unit 11. Preferably, the wiper blade 10 comprises end caps 42a, 44a, which are not shown in detail. Preferably, the wiper blade 10 comprises a wiper arm adapter 46a.

[0034] FIG. 2 shows a wiper blade 10, in particular in the section plane 52a (see FIG. Figure 1 ), the section plane being in particular at least substantially perpendicular to the longitudinal direction 50a. Preferably, the cross section of the wiper blade 10 has an axis of symmetry 102, which in particular extends at least substantially perpendicular to the wiping directions 30a, 30b and in particular at least substantially parallel to the longitudinal direction 50a. In particular, the cross section of the wiper strip unit 11 is designed to be mirror-symmetrical with respect to the axis of symmetry 102. The horizontal direction H of the wiper blade preferably extends orthogonally to the axis of symmetry.

[0035] The wiper strip unit 11 comprises at least one wiper lip 12. The wiper lip 12 is preferably arranged in an axis of symmetry 102. In particular, a main extension direction of the wiper lip 12 runs at least substantially parallel to the axis of symmetry, particularly preferably in the axis of symmetry 102.

[0036] The wiper lip 12 is preferably designed to be mirror-symmetrical, in particular with respect to the axis of symmetry 102. The wiper strip unit 11 comprises at least one wiper base body 14. The wiper lip 12 is preferably arranged on the wiper base body 14. The wiper base body 14 is preferably designed to be mirror-symmetrical, in particular with respect to the axis of symmetry 102. In particular, the main extension direction of the wiper base body 14 runs at least substantially parallel to the axis of symmetry, particularly preferably in the axis of symmetry 102. The wiper base body is preferably designed to be substantially rectangular. The wiper base body is preferably designed as a hollow body and has a first longitudinal cavity 18.

[0037] The wiper base body 14 preferably has a first outer wall 180 . The first outer wall preferably extends substantially along a horizontal direction H. The first outer wall is preferably designed orthogonally to the adjoining side walls of the wiper base body. The first outer wall 180 is preferably the wall of the wiper base body 14 facing away from the wiper blade 12 .

[0038] The first outer wall 180 is preferably of substantially flat design. The outer wall 180 preferably has at least one first outer wall section 180a and a second outer wall section 180b. The outer wall sections 180a, 180b are separated from one another by a preferably substantially T-shaped element of the wiper strip unit.

[0039] The outer wall sections 180a, 180b are preferably designed substantially identically in mirror symmetry with respect to the axis of symmetry 102. Preferably, the spring strip contact surfaces 16a, 16b each extend in a common horizontal plane. Preferably, the outer wall sections 180a, 180b each extend within the longitudinal extension 50a of the wiper blade 10.

[0040] The wiper base body 14 comprises at least one first longitudinal cavity 18. The first longitudinal cavity 18 is designed differently from the second longitudinal cavity 130. The first longitudinal cavity 18 is preferably designed to be closed in the circumferential direction. The first longitudinal cavity is preferably formed by the wall of the wiper base body 14. The wiper lip 12 is preferably arranged below the longitudinal cavity 18 with respect to the axis of symmetry. The wiper lip 12 is preferably arranged substantially outside the longitudinal cavity 18.

[0041] According to the embodiment of the invention shown in FIG. 2 , the wiper lip 12 is essentially triangular in shape. It is conceivable that the wiper lip 12 is formed from solid material. It is also conceivable that the wiper lip 12 has additional recesses in a direction transverse to the axis of symmetry 102. Preferably, the longitudinal cavity 18 and the wiper lip 12 are connected to one another via a relatively narrow connecting strip 34. Preferably, both the first longitudinal cavity 18 and the wiper lip 12 are symmetrically formed with respect to the axis of symmetry 102.

[0042] According to the embodiment of the invention shown in FIG. 2 , the first longitudinal cavity 18 has an approximately rectangular shape. However, other cavity shapes are also conceivable, provided that they are suitable for providing corresponding compensation in the longitudinal direction. During operation, the wiper lip 12 preferably contacts the surface to be cleaned with its end facing away from the wiper base body 14. The wiper lip 12 is preferably substantially perpendicular to the wiping directions 30a, 30b.

[0043] 2 , the wiper strip unit 11 has a T-shaped section 13 adjoining the wiper base body 14. The T-shaped section comprises an upper beam 126 and a web 128. The hollow space of the first longitudinal cavity 18 can be filled with air at atmospheric pressure, with a special gas or alternatively also with compressed air.

[0044] A covering element 100 is arranged on the side of the wiper strip unit 11 facing away from the wiper lip 12. The covering element 100 is preferably designed as a spoiler. The covering element 100 has two side walls 104a, 104b. The side walls 104a, 104b extend substantially in the direction of the axis of symmetry 102. The side walls 104a, 104b preferably cover the entire height of the first longitudinal cavity 18.

[0045] A second longitudinal cavity 130 is preferably formed between the cover element 100 and the wiper base body 14 . The second longitudinal cavity is delimited at the top and laterally by the cover element 100 and at the bottom by a first outer wall of the wiper base body 14 .

[0046] A spring bar 17 is arranged inside the second longitudinal cavity 130 . The spring bar 17 is preferably made of metal. The spring bar is preferably designed essentially as a thin beam. The spring bar preferably extends essentially in the horizontal direction H. The spring bar 17 preferably has a thickness that is smaller than the height of the second longitudinal cavity 130 .

[0047] The cover element 100 preferably has a spring bar abutment surface 101 extending substantially in the horizontal direction, against which the spring bar 17 abuts in a planar manner. The spring bar abutment surface delimits a second longitudinal cavity upward. According to the embodiment of the invention shown in FIG. 2 , the spring bar 17 is constructed in two parts and has a first spring bar section 17 a and a second spring bar section 17 b.

[0048] The spring strip sections 17a and 17b are preferably separated from each other by a separating element 13. Preferably, the two spring strip sections 17a, 17b are identically designed. Preferably, the spring strip sections abut against the beam 128 of the T-shaped element 130 in the radial inner region. The spring strip 17 is arranged inside the second longitudinal pocket spaced apart from the wiper base body 14. Preferably, the second longitudinal pocket space is divided into two longitudinal pocket sections 130a, 130b by the separating element 13. Preferably, the two longitudinal pocket sections 130a, 130b of the second longitudinal pocket space are designed as essentially rectangular, preferably identical, in particular mirror-symmetrically identical longitudinal pocket spaces.

[0049] Preferably, when the spring strip 17 is arranged within the second longitudinal cavity 130 , a compensating free space is preferably provided between the spring strip 17 and the outer wall 180 of the wiper base body.

[0050] The wiper strip unit 11 comprises an elastic spacer element 110. The spacer element 110 preferably comprises at least a first spacer section 110a and a second spacer section 110b.

[0051] 2 , the spacer element 110 is made of the same material as the wiper base body 14 and the wiper lip 12. The spacer element is preferably molded onto the wiper base body 14. The spacer element 110 is preferably formed integrally with the wiper base body.

[0052] According to the present invention Figure 2a In the embodiment shown in FIG. 5 , the spacer element 110 is substantially rectangular. The spacer element 110 preferably extends in the entire longitudinal extension direction 50 a. Preferably, the spacer element 110 is configured as a narrow, beam-shaped abutment element for the spring strip 17. The spacer element 110 preferably extends substantially in the direction of the axis of symmetry 120. The spacer element 110 is configured to form a vertical abutment for the spring strip 17. The spring strip 17 is pressed against the cover element in an advantageous manner by the spacer element 110. At the same time, the spacer element 110 allows compensation in the vertical direction. The elastic spacer element 110 can advantageously prevent the spring strip from being loosened from the cover element 100 during the reversing movement of the wiper at the reversing point, thereby avoiding undesirable reversing noises. At the same time, the elastic spacer element 110 can provide sufficient vertical damping during the wiping movement outside the reversing point due to its elasticity and the damping effect associated therewith.

[0053] According to the present invention Figure 2aIn the embodiment shown in , the spacer element 110 has a first spacer section 110a and a second spacer section 110b. The spacer sections 110a and 110b are preferably designed essentially identically.

[0054] According to a particularly preferred embodiment of the present invention, it is provided that the spacing sections 110a, 110b of the spacing element 110 are respectively arranged in the radial outer region of the wiper base body 14 with respect to the axis of symmetry. Here, the spacing sections can be designed as extensions of the respective side walls of the wiper base body 14, which extend beyond the contour of the wiper base body. Preferably, the spacing sections 100a, 100b respectively contact, preferably contact, against the contact surfaces of the corresponding spring strip sections 17a, 17b.

[0055] The spring strip sections 17a, 17b each have a width 141 in the horizontal direction. The spring strip sections 17a, 17b here each abut against the respective abutment sections 110a, 100b of the abutment element 100 in abutment sections 142a, 142b. This abutment section 142a, 142b is designed to be many times smaller than the width 141a, 141b or the horizontal extension of the spring strip sections 17a, 17b. Therefore, the abutment only takes place at small abutment positions. Here, the abutment section preferably covers only 10%, preferably 7%, particularly preferably 4% of the horizontal extension 414a, 414b of the spring strip 17.

[0056] According to the embodiment of the present invention shown in FIG. 2 , the wiper strip unit having the wiper lip 12, the connecting strip 34, the wiper base 14, the separating element 13 and the spacing element 110 is formed in one piece from a wiper rubber strip. The wiper strip unit 11 is preferably extruded from EPDM. A co-extrusion method is used here, but as an alternative, only a single plastic can also be used. A preferred embodiment of the present invention can provide that the wiper lip 12 is formed from EPDM which is slightly softer than the remaining areas of the wiper strip unit 11. It is also conceivable that the longitudinal cavity 18 has a greater stiffness than the wiper lip 12. Preferably, the longitudinal cavity 18 is formed in such a way that it has a greater damping factor than the wiper lip 12. Preferably, the spacing element 110 is particularly dimensionally stable, so that a dimensionally stable abutment surface for the spring strip 17 can be provided.

[0057] exist Figure 2a , 3a 3a and 3b show other embodiments of the present invention, respectively. The following description and drawings are essentially limited to the differences between the embodiments, wherein for identically represented components, in particular for components with the same reference numerals, reference can in principle also be made to other embodiments, in particular Figure 1 and 2a Figures and / or descriptions of the

[0058] Figure 2b According to the present invention Figure 2a 1 , in which a respective enclosing portion 105a, 105b adjoins the side walls 104a, 104b of the cover element 100. The enclosing portions 105a, 105b are preferably arranged as projections extending substantially along the wiping directions 30a, 30b on the respective side walls 104a, 104b. Preferably, the enclosing portions 105a, 105b are integral and integral components of the cover element 100.

[0059] Figure 3a 2, the difference is that the spacer element 110 and the first outer wall 180 of the wiper base body 14 are designed with a concave contour. According to a particularly preferred embodiment of the present invention, the spacer element 100 and the first outer wall 180 of the wiper base body follow a common, preferably substantially free of projections, concavely shaped contour.

[0060] Figure 3b According to the present invention Figure 3a 104a, 104b of the cover element 100. The enclosing portions 105a, 105b are preferably arranged as projections extending substantially along the wiping directions 30a, 30b on the respective side walls 104a, 104b. The enclosing portions 105a, 105b are preferably integral components of the cover element 100.

Claims

1. A wiper blade (10) comprising at least one spring strip (17, 17a, 17b) and at least one wiper strip unit (11), the wiper strip unit having at least one wiper lip (12) and at least one wiper base body (14), wherein the wiper blade (10) comprises at least one spring strip (17, 17a, 17b) which is arranged spaced apart from the wiper base body (14), in particular spaced apart along an axis of symmetry (102) of the wiper blade (10), It is characterized in that The wiper strip unit (11) has elastic spacer elements (110, 110a, 110b) for supporting the spring strips (17, 17a, 17b) on the wiper base body (14), wherein the spacer elements (110, 110a, 110b) preferably bear against the spring strips (17, 17a, 17b) in a contacting manner.

2. The wiper blade (10) according to claim 1, It is characterized in that The spacer element (110, 110a, 100b) and the wiper base body (14) are formed integrally.

3. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The spacer elements (110, 120a, 110b) extend substantially in the direction of the axis of symmetry (102).

4. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The spacer element (110, 110a, 110b) is formed by a wiper rubber, in particular an extruded EPDM wiper rubber.

5. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The wiper blade (10) comprises a covering element (100), in particular a spoiler, which is located opposite a wiper lip (12), wherein the covering element (100) surrounds a wiper base body (14) and spring strips (17, 17a, 17b).

6. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The wiper blade (10) comprises at least one first longitudinal cavity (18) and at least one second longitudinal cavity (130), wherein the first longitudinal cavity (18) is formed in the wiper base (14), and wherein the second longitudinal cavity (130) is formed between the cover element (100) and an outer wall (180, 180a, 180b) of the wiper base (14).

7. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The spring strip (17, 17a, 17b) is arranged in the second longitudinal cavity (130), wherein the spring strip (17, 17a, 17b) is arranged in abutment on a contact surface (190) of the cover element (100), and wherein a compensation space is arranged in the second longitudinal cavity (130) between the spring strip (17, 17a, 17b) and the wiper base (14).

8. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The spacer elements (110, 110a, 110b) are arranged in a radially outer region of the wiper base (14) relative to an axis of symmetry (102), wherein the spacer elements (110, 110a, 110b) preferably bear against a radially outer region of the spring strips (17, 17a, 17b) in a contacting manner.

9. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The spring strips (17, 17a, 17b) have a horizontal extension (141a, 141b), wherein the spring strips (17, 17a, 17b) abut against the spacer element (110, 110a, 110b) in a contact section (142a, 142b), wherein the contact section (142a, 142b) is designed to be several times smaller than the horizontal extension (141a, 141b) of the spring strips (17, 17a, 17b).

10. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The contact section (142a, 142b) covers 10%, preferably 7%, preferably 4% of the horizontal extension (141a, 141b) of the spring strip (17, 17a, 17b).

11. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The spacer element (110, 110a, 110b) extends as a contact strip, in particular a contact wall, extending in the longitudinal direction (50a) within the contour of the wiper base body (14).

12. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The wiper base body (14) has a first outer wall (180, 180a, 180b) which extends toward the spring strip (17, 17a, 17b) substantially in a horizontal direction (H), wherein the spacer element (110, 110a, 110b) is arranged on the first outer wall (180, 180a, 180b).

13. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The spacer element (110, 110a, 110b) and the first outer wall (180, 180a, 180b) of the wiper base body (14) are designed with a concave contour.

14. The wiper blade (10) according to any one of the preceding claims, It is characterized in that The spring strip (17, 17a, 17b) is designed in two parts, that is, it has a first spring strip part (17a) and a second spring strip part (17b), wherein the spacer element (110, 110a, 110b) has at least one first spacer (110a) and a second spacer (110b), wherein each spacer (110a, 110b) is designed to support at least one spring strip part (17a, 17b).

15. The wiper strip unit (11) according to any one of the preceding claims, It is characterized in that The wiper strip unit (11) comprises at least one wiper lip (12), at least one wiper base body (14) and at least one spacer element (110, 110a, 110b).

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