JP5383777B2 - Wiper blades for car window glass cleaning - Google Patents

Description

  The present invention relates to a wiper blade for cleaning window glass, in particular automotive window glass.

  In conventional wiper blades, the support member is intended to ensure as even a distribution of the wiper blade / crimping force that is generated against the window glass by the wiper arm over the entire wiping area wiped by the wiper blade. . Based on the appropriate curvature of the support member in the unloaded state, i.e. when the wiper blade is not in contact with the window glass, the end of the wiper strip that is completely applied to the window glass during operation of the wiper blade is Even when the curvature radius of the vehicle window glass curved in a spherical shape varies at each wiper blade position, the vehicle window glass is loaded toward the window glass by the stretched support member. That is, the curvature of the wiper blade is somewhat stronger than the strongest curvature of the wiping area of the window glass. Accordingly, the support member forms an expensive support hanger structure including two spring rails arranged in the wiper strip (see, for example, Patent Document 1).

  Furthermore, in a known wiper blade (see, for example, Patent Document 2), the support member includes a so-called windbreak strip, which makes it possible to increase the levitation effect caused by the airflow of the wiper blade from the window glass at a high traveling speed. On the other hand, the force component directed to the window glass is generated in the opposite direction. For this purpose, the front side of the windbreak strip, which is loaded by the traveling wind, is formed as a flow surface. The cross section of the windbreak strip has a substantially right triangle shape, one side sandwiching the right angle of the triangle is directed to the support member, and the oblique side of the triangle forms a flow surface. The flow surface forms an acute angle with the swinging / moving plane of the wiper blade or the surface of the window glass. Such a triangular profile used requires significantly more material for the manufacture of windshield strips, which reflects the cost of the wiper blade. In addition, the weight of the wiper blade is disadvantageously significantly increased. Therefore, the large mass to be accelerated during the swing / wiper operation requires a large drive and a correspondingly large swing transmission. The operating characteristics of the support member or wiper blade are impaired by the bending rigidity defined by the shape of the windbreak strip formed as described above.

German Patent Application No. 1505357 German Patent Application Publication No. 1937368

  An object of the present invention is to provide a wiper blade that solves the problems of the conventional wiper blade.

  In order to achieve the above object, a wiper blade for cleaning a window glass of an automobile according to the present invention includes a spring elastic support member (12) elongated in a strip shape, and the window glass ( 22) a wiper strip (14) which is long and elastic and can be brought into contact with the glass window is arranged in parallel with the longitudinal axis on the lower surface (13) directed to 22). An elastic material provided on the surface (11) of the support member (12) with a flow surface (54) extending in the longitudinal direction of the support member (12) and directed to the traveling wind / main air flow. In the type in which the windbreak strips (142, 242) made of metal are arranged, the windbreak strips (142, 242) have two legs (44, 46) that diverge from each other when viewed in cross section. The legs are connected to each other with a common base (48) The free end of the leg facing the window glass (22) is supported by the wiper blade (10), and the outer surface of the one leg (44) is the flow-through surface (54). ) And both legs (44, 46) of the windbreak strips (142, 242) are connected to each other by the walls (144, 244) in the region of both ends of the wiper blade. It is characterized by.

  In the wiper blade according to the present invention, the shape of the cross section of the windbreak strip (42) is the same over the entire length.

  In the wiper blade according to the present invention, the wall portion (144) is oriented perpendicular to the support member (12).

  In the wiper blade according to the present invention, the outer surface (246) of the wall portion (144) forms an acute angle (α) with the support member (12).

  In the wiper blade according to the present invention, the wall portion (144, 244) is provided with a notch (146, 246) opened at an edge directed to the window glass (22), and the width of the notch ( 148) is larger than the width (150) of the wiper strip (14), and the notch depth (152) reaches the upper surface (11) of the support member (12).

  In the wiper blade according to the present invention, the free leg end portions (50, 52) of the windbreak strip (142, 242) are firmly coupled to the wiper blade (10).

  In the wiper blade according to the present invention, free leg end portions (50, 52) of the windbreak strip (142, 242) are bonded to the wiper blade (10).

  In the wiper blade according to the present invention, free leg end portions (50, 52) of the windbreak strip (142, 242) are bonded to the support member (12) of the wiper blade (10).

  In the wiper blade according to the present invention, the free leg end portions (50, 52) of the windbreak strips (142, 242) are provided with claw-like extensions (56, 58) at least partially, and the extension Are closely engaged around the opposite outer edge strips (36) of the support member (12).

  In the wiper blade according to the present invention, the claw-like extension portion extends from the leg end portion (50, 52) into the region of the wall portion (154, 254), and the end on the end face side of the support member (12). It is closely engaged around the perimeter region (112).

  In the wiper blade according to the present invention, adhesive bonding is performed in the region of the claw-like extension portions (56, 58).

  In the wiper blade according to the present invention, the claw surface (60) that contacts the upper surface (11) of the support member (12) is larger than the claw surface (64) that engages the lower surface (13). It has a width (62).

  In the wiper blade according to the present invention, the flow surface (54) on the outer wall of one leg portion (44) of the windbreak strip (142, 242) is formed as a recess.

  In the wiper blade according to the present invention, the support member (12) is a central section of the support member, and the wiper blade side portion of the device for coupling the wiper blade (10) to the swingable wiper arm (16). (15).

  In the wiper blade according to the present invention, the portion (15) on the wiper blade side of the coupling device is provided with a recess (70), and the recess is a recess of the windbreak strip as a flow surface (54). It extends along the extension line.

  In the wiper blade according to the present invention, the hardness of the material for the windshield strip (142, 242) exceeds the hardness of the material for the wiper strip (14) by at most 40 percent.

  In the wiper blade according to the invention, the hardness of the material for the windbreak strip (142, 242) exceeds the hardness of the material for the wiper strip (14) by at most 20 percent.

  In the wiper blade according to the present invention, the wiper strip (14) has a Shore hardness A between 64 and 71, and the windbreak strip (142, 242) has a Shore hardness between 70 and 78. A.

  In the wiper blade according to the present invention, the wiper strip (14) has a Shore hardness A of 68, and the windbreak strips (142, 242) have a Shore hardness A of 72.

  In the wiper blade according to the present invention, the weight of the windbreak strip is significantly reduced by the cross-sectional structure of the angle formed body. Furthermore, in addition to material savings, a reduction in the kinetic mass is achieved, which in turn simplifies the structure of the drive and oscillating transmission. Furthermore, the bending stiffness of the windshield strip is reduced, so that the influence of the bending stiffness on the deflection and spring characteristics of the wiper blade / support member is significantly reduced.

  Also, both legs of the windbreak strip are joined together by a wall in the region of both ends of the wiper blade. When using windshield strips that can be manufactured by injection molding, the end caps placed at the end of the support member or wiper blade can be omitted, because the wall forms the closure of the windshield strip. is there. The windbreak strips manufactured as described above can be formed in any shape, and even when the support member has a reduced cross-section from the center section toward the end when viewed in the longitudinal direction, it can be formed into any shape of the support member. Can be easily adapted.

  The wiper blade side part (component) of the device for connecting the wiper blade and the wiper arm that can be swiveled (swivel driven) is held on the upper surface in the central section of the support member. Closed and end caps are arranged at both ends of the member, respectively, in which case the support member consists of two piece pieces, each piece between the end cap and the component part, respectively. As a result, the support member can be easily assembled.

  For the improvement of the present invention, the shape of the cross section of the windbreak strip is the same over its entire length. This makes it possible to produce windbreak strips particularly economically by extrusion.

  Furthermore, the course of the cross section towards the end of the windbreak strip can be configured from a stylistic or formal point of view. Advantageously, the wall is oriented substantially perpendicular to the support member.

  On the other side, by arranging the wall part to be inclined accordingly, it is possible to obtain a beautiful formschoener Abschluss in the form of windbreak strips, in which case the outer surface of the wall part forms an acute angle α with the support member. It is made. Of course, both end portions of both of the two partial pieces belonging to one windbreak strip may be formed different from each other using the above-described means.

  Furthermore, in order to simplify the assembly of the wiper blade, the wall is advantageously provided with a notch open at the edge facing the window glass, the width of the notch being a support member or wiper strip. The depth of the notch reaches the upper surface of the support member.

  Reliable support of the windshield strip on the wiper blade is effected by a rigid connection between the leg end of the windshield strip and the wiper blade. Such a connection between the leg end and the wiper blade is achieved simply and economically by an adhesive bond.

  When the free leg end of the windshield strip is connected to the support member of the wiper blade, preferably glued, the correct positioning of the windshield strip on the wiper blade is ensured.

  The positioning is based on the idea of the present invention, in which the free leg end of the windbreak strip is at least partially provided with a claw-like extension, the extension of the outer edge of the support member being opposite to each other Further improvement is achieved by closely engaging the periphery of the strip or by fitting to the edge strip.

  In the case of using the above-mentioned windbreak strip provided with the closed wall portion, advantageously, the claw-like extension portion extends from the end portion of the leg portion into the region of the wall portion, and the end region on the end surface side of the support member is provided. Closely engaged around.

  A claw-like extension used as positioning means forms a particularly advantageous area for adhesive bonding.

  For a particularly stable and reliable attachment of the windbreak strip to the support member, the claw surface that contacts the upper surface of the support member has a larger width than the claw surface that engages the lower surface of the support member. Have.

  Advantageously, the flow surface at the outer wall of one leg of the windbreak strip is formed as a recess.

  In order to avoid an unfavorable flow state of the traveling wind that flows along the wiper blade in the region of the end portion of the wiper blade, the end cap is provided with a recessed portion, and the recessed portion is a flow surface of the windbreak strip. As extending along the extension of the recess.

  In order to avoid the above-mentioned drawbacks even in the central section of the wiper blade, the wiper blade side portion of the coupling device is provided with a recess, which is along the extension of the recess as the flow-through surface of the windbreak strip. It extends.

  In order not to significantly disturb the distribution of the wiper blade and the crimping force on the window glass by the individually formed support member of the windshield strip, the hardness of the material for the windshield strip is determined by the hardness of the material for the wiper strip. Hardness exceeds only 40% at maximum. Particularly advantageously in this connection, the hardness of the material for the windbreak strips exceeds the hardness of the material for the wiper strips by at most 20 percent. In many cases, the wiper strip preferably has a Shore hardness A between 64 and 71 and the windbreak strip has a Shore hardness A between 70 and 78.

The perspective view of the wiper blade based on this invention. FIG. 2 is a cross-sectional view of the wiper blade taken along line II-II in FIG. Sectional drawing shown corresponding to FIG. 2 in the state which excluded the wiper strip and the support member of the windbreak strip which belongs to a wiper blade. FIG. 2 is a partial perspective view similar to FIG. 1 of a differently formed wiper blade of the present invention. FIG. 5 is an enlarged view of the wiper blade of FIG. 4 as viewed in the direction of arrow V. Sectional drawing along line VI-VI of FIG. 4 and FIG. 5 of one edge part of the windbreak strip which belongs to the wiper blade of FIG. FIG. 7 is a cross-sectional view similar to FIG. 6 of another embodiment of a windshield strip belonging to a wiper blade according to the present invention.

  Advantageous configurations of the present invention will be described in detail below with reference to the illustrated embodiments.

  The wiper blade 10 shown in FIG. 1 has a spring elastic support member 12 (FIGS. 1 and 2) which extends in a band-like shape (FIG. 1 and FIG. 2). A rubber elastic wiper strip (wiping strip or wiping strip) 14 that extends long is attached to the surface (band surface) 13 in parallel to the vertical axis. A portion 15 on the wiper blade side of the connecting device is arranged in the middle section of the support member 12 on the upper surface 11 of the support member 12, which is also called a spring rail, on the side opposite to the window glass. In use, the wiper blade 10 can be hingedly coupled to the wiper arm 16 shown in dashed lines in FIG. A wiper arm 16 that can be driven to swing in the direction of a double arrow 18 in FIG. 1 is a window glass to be wiped in the direction of an arrow 24, for example, a windshield of an automobile (the surface of the glass is indicated by a chain line 22 in FIG. Is loaded). The dashed line 22 shows the strongest curvature of the glazing surface because the curvature of the wiper blade that is in contact with the glazing at both ends but not yet loaded is stronger than the maximal glazing curvature. This is to make it clear. Under the pressure (arrow 24), the wiper blade 10 is in contact with the window glass surface 22 with the wiper lip (wiping lip) 26 over the entire length. In this case, the metal spring-elastic support member 12 generates a stress, which causes a precise contact over the entire length of the wiper strip 14 or wiper lip 26 and the crimping force (arrow 24) to the window glass surface 22. ) Helps with uniform distribution.

  In the following, the special structure of the wiper blade according to the invention will be described in detail.

  As shown in FIG. 2, the support member 12 has two spring rails 30 in the exemplary embodiment, which spring rails are arranged in a common plane that is generally parallel to the glazing surface 22. . Both spring rails 30 are inserted into an open longitudinal groove 34 on the edge side of the wiper strip 14 with an inner edge strip 32 facing each other and an outer edge strip 36. And protrudes from the longitudinal groove 34. Both spring rails 30 are secured in the longitudinal groove 34 by connecting device components 15 arranged in the central region of the wiper blade and end caps 38 arranged at each end of the wiper blade. For this purpose, the components 15, 38 are engaged around the outer edge strip 36 of the spring rail 30. A piece 40 of the windbreak strip 42 is arranged between the component 15 and each end cap 38. The arrangement and structure of the windbreak strips 42 are shown in FIGS. The windbreak strips 42 made of an elastic material such as plastic, or both pieces 40 of the windbreak strips 42 are mounted on the upper surface (band surface) 11 of the support member 12. The windbreak strip 42 has two legs 44 and 46 that diverge from each other when viewed in cross section, and the legs are connected to each other by a common base 48. Free ends 50 and 52 of the legs 44 and 46 are directed to the window glass 22 and supported by the wiper blade 10 or the support member 12 of the wiper blade. The outer surface of the outer side of one leg 44 is formed as a concave flow surface 54 in the embodiment, and the flow surface is flowed mainly by running wind during the operation of the wiper blade. The cross-sectional shape shown in FIGS. 2 and 3 of the windbreak strip 42 or the partial piece 40 is the same over its entire length, so that the partial piece can be extruded economically. The piece 40 of the windbreak strip 42 is rigidly connected to the wiper blade or support member 12 at the free ends (leg ends) 50, 52 of the legs. For this purpose, the free leg end of the windbreak strip 42 is advantageously bonded to the support member 12 of the wiper blade 10. For this purpose, the free ends 50, 52 of the legs 44, 46 are provided with claw-like extensions 56, 58, which extend on the opposite outer edge strip 36 of the support member 12. Closely engaged around. The surface of the claw-like extensions 56, 58 that contacts the edge strip 36 is used as an adhesive surface (Klebeflaeche), and the partial piece 40 of the windbreak strip 42 is adhered to the support member using the adhesive surface. . For particularly stable adhesive bonding, the claw surface 60 (FIG. 3) that contacts the upper surface 11 of the support member 12 has a width 62 that is greater than the width 66 of the claw surface 64 that engages the lower surface 13. have.

  As can be seen from FIG. 1, the recessed flow surface 54 of the piece 40 continues to the end cap 38 and also to the connection device part 15. The recessed portion of the end cap 38 is labeled 68 in FIG. 1 and the component 15 is labeled 70. The windbreak strip 42 or the piece 40 of the windbreak strip has the same cross-section over its entire length, so that the windbreak strip or segment can be extruded economically.

  4 to 6 show another embodiment of a wiper blade according to the invention. The difference from the wiper blade 10 is only in the windshield strip, and FIG. 4 shows only one piece of the wiper blade 110, and this piece is connected to the connecting device part (not shown) from one end. ). The structure of the windbreak strip 142 belonging to the wiper blade 110 corresponds to the embodiment described above in connection with the coupling of the windbreak strip with the support member 12 of the support member 12 and the outer edge strip 36 of the spring rail 30. Therefore, they are given the same reference numerals. The windbreak strip 142 also has two legs 44 and 46 when viewed in cross section, and the legs are connected to each other by a common base 48. The free ends 50, 52 of the legs 44, 46 are also provided with claw-like extensions 56, 58, which closely engage around the outer edge strip 36 of the spring rail 30. ing. Also in this embodiment, both partial pieces of the windbreak strip 142 formed in one injection mold are bonded to the support member 12 of the wiper blade 10. The claw-like extension allows for easy clipping of the windbreak strip on the support member and thus accurate positioning during the bonding process. Adhered parts are also reliably covered. Furthermore, the flow cross section 54 is formed in the leg part 44 of the windbreak strip 142 or the partial piece 140 of the windbreak strip (FIG. 5).

  Unlike the embodiment shown in FIGS. 1 to 3, both legs 44, 46 are connected to each other by a wall 144 at the end of the wiper blade or the end of the piece 140, and the wall extends from the base 48. It extends to the claw-like extensions 56 and 58. In this case, the wall 144 is oriented substantially perpendicular to the support member 12 or substantially perpendicular to the claw-like extensions 56, 58 that engage the support member.

  As shown in FIGS. 5 and 6, the wall 144 has a notch 146 opened at the edge toward the window glass, and the width 148 of the notch is a wiper strip 14 indicated by a chain line in FIG. 5. The width is larger than 150. The depth 152 of the notch 146 reaches the upper surface 11 of the support member 12. This is apparent from the upper claw surface 60 in FIG. 5, which contacts the upper surface 11 of the support member 12, that is, the upper surface of the spring rail 30 when the support member and the windbreak strip are bonded. . Further, as apparent from FIG. 6, the claw-shaped extension extends from the end of the legs 44 and 46 into the region of the wall 144, and the end region 112 on the end surface side of the support member 12 indicated by a chain line is shown. Closely engaged around. In FIG. 6, reference numeral 154 is attached to the claw-like extension of the wall 144 of the piece 140. The claw-like extensions 56, 58 of the embodiment of FIGS. 1-3 and 4-6 serve for covering the exposed sharp-edged edge of the support member 12 and the pieces 40,140. It also serves as a reliable positioning means for the partial pieces when adhering to the support member 12.

  FIG. 7 shows another arrangement of the wall 144 (FIG. 6). The wall portion 244 disposed in the end region of the windbreak strip 242 is disposed as follows, that is, the outer surface 246 of the wall portion forms an acute angle α with the support member 12. This is evident by the claw-like extension 58, which closely engages the periphery of the support member when the support member and the windbreak strip 242 are coupled, and the claw surface 60 of the extension. Is in contact with the upper surface 11 of the support member 12. Also in this embodiment, the wall portion 244 or the claw-like extension 254 of the wall portion is provided with a notch 248, and the arrangement and dimensions of the notch are the notches in the embodiment of FIGS. 146 corresponds to the arrangement and dimensions of 146. Further, as is apparent from FIG. 7, a claw-like extension 254 is also arranged on the wall 244, and this extension is closely related to the periphery of the end region 112 on the end face side of the support member 12 indicated by a chain line. Match.

  Since the properties of the wiper blade obtained by the construction of the support member are not undesirably impaired, the hardness of the material of the windshield strip 42 exceeds the hardness of the material of the wiper strip 14 only by a maximum of 40%. This value is particularly preferably limited to 20%. In practice, good results regarding wiper properties over a wide range of travel speeds are that the wiper strip 14 has a Shore hardness A of 68 and the windbreak strip 42 has a Shore hardness A of 72. can get.

  Special values can also be obtained by adapting the thickness of the legs 44, 46 to the selected hardness of the material for the windshield and wiper strips.

  As a common point in all the embodiments, the windbreak strips 42, 142, 242 have two legs 44, 46 that diverge from each other when viewed in cross section, that is, extend outwardly, and the legs are common. Are connected to each other by a single base 48, and free ends 50, 52 facing the leg panes 22 are supported by the wiper blade 10, in which case the outer surface of one leg 44 is It is formed as a flow surface 54.

  In another embodiment, which may be considered different from the previous embodiment, instead of the two pieces 40 of the windscreen strip 42, the windscreen strips are integral and extend beyond the device section 15 so that the device section Covered or covered. In this case, the windshield strip has at least one suitable notch, which allows a hinged connection between the wiper arm and the wiper blade.

  Further, based on a predetermined standard, the wiper blade of FIG. 1 or 4 is provided with only one piece 40 or 140 of the windbreak strip, and the piece is in a region near the swing axis of the wiper blade or It is also advantageous if it is attached to the wiper blade in a region far from the pivot axis.

DESCRIPTION OF SYMBOLS 10 Wiper blade 11, 13 surface 12 Support member 14 Wiper strip 15 Component 16 Wiper arm 22 Window glass surface 24 Arrow (crimping force)
26 Wiper lip 30 Spring rail 32 Edge strip 34 Longitudinal groove 36 Edge strip 38 End cap 40,140 Partial piece 42,142,242 Windbreak strip 44,46 Leg 48 Base 50,52 End 56,58 Extension Part 60 Claw face 62, 66, 148, 150 Width 64 Claw face 112 End region 144, 244 Wall part 146, 248 Notch 152 Depth 154 Extension part 246 Outer face 254 Extension part

Claims (18)

It includes a resilient support member (12) extending long in a band-like, support member, the lower surface directed toward the window glass (22) (13), elongated and have rubber-elastic a window A wiper strip (14) capable of contacting the glass is arranged in parallel with the vertical axis, and extends on the upper surface (11) of the support member in the longitudinal direction of the support member (12), so that the running wind / main air For cleaning windshields of automobiles in which windbreak strips (142, 242) made of elastic material are provided with a flow surface (54) through which the running wind and main air flow directed to the flow flow A wiper blade,
The windbreak strip (142, 242) has two legs (44, 46) that diverge from each other when viewed in cross section, and the legs are joined together by a common base (48). A free end portion of the leg portion directed toward the window glass (22) is supported by a support member (12) , and an outer surface of the one leg portion (44) is a flow surface (54). Formed, both legs (44, 46) of the windbreak strips (142, 242) are connected to each other by walls (144, 244) in the region of both ends of the wiper blade And wiper blades for cleaning automobile window glass.   The wiper blade according to claim 1, wherein the cross-sectional shape of the windbreak strip (42) is the same over its entire length.   The wiper blade according to claim 1 or 2, wherein the wall (144) is oriented perpendicular to the support member (12). The wiper blade according to claim 1 or 2, wherein the outer surface (246) of the wall portion ( 244 ) forms an acute angle (α) with the support member (12).   The wall (144,244) is provided with a notch (146,246) open at the edge directed to the window glass (22), the width of the notch (148) being the wiper strip (14). 5. The width (150) of the support member (12) and the depth (152) of the notch reaching the upper surface (11) of the support member (12). Wiper blades. A wiper blade according to any one of the preceding claims, wherein the free leg ends (50, 52) of the windbreak strip (142, 242) are rigidly connected to the support member (12) . The wiper blade according to any one of claims 1 to 6, wherein the free leg end (50, 52) of the windbreak strip (142, 242) is bonded to the support member (12) . The free leg ends (50, 52) of the windbreak strips (142, 242) are provided at least in part with claw-like extensions (56, 58), which extend from each other of the support member (12). opposite outer edge strip (36) wiper blade according to any one of claims 1 to 7 in engagement closely engage around the. A claw-like extension extends from the leg end (50, 52) into the region of the wall (154, 254) and is in close contact with the periphery of the end region (112) on the end face side of the support member (12). The wiper blade according to claim 8, which is engaged with the wiper blade. 10. Wiper blade according to claim 8 or 9, wherein the adhesive bond is made in the region of the claw-like extension (56, 58). The claw surface (60) that contacts the upper surface (11) of the support member (12) has a larger width (62) than the claw surface (64) that engages the lower surface (13). The wiper blade according to any one of claims 8 to 10 . The wiper blade according to any one of claims 1 to 11, wherein a flow surface (54) on an outer wall of one leg portion (44) of the windbreak strip (142, 242) is formed as a recessed portion. The support member (12) is the central section of the support member and is held by the wiper blade side portion (15) of the device for coupling the wiper blade (10) to the swingable wiper arm (16). The wiper blade according to any one of claims 1 to 12 . The wiper blade side portion (15) of the coupling device is provided with a recess (70), which extends along the extension of the recess as the flow-through surface (54) of the windbreak strip. Item 14. A wiper blade according to Item 13 . Hardness of the material for the windbreak strip (142, 242) is, the wiper strip (14) any one of claims material not only exceed 40% in the maximum hardness of claims 1 to 14 for the Wiper blades. Hardness of the material for the windbreak strip (142, 242) is, the wiper strip (14) any one of claims material not only exceed 20% in the maximum hardness of claims 1 to 14 for the Wiper blades. The wiper strip (14) has a Shore hardness A between 64 and 71 and the windbreak strip (142, 242) has a Shore hardness A between 70 and 78. The wiper blade of any one of thru | or 16 . 18. A wiper blade according to claim 17 , wherein the wiper strip (14) has a Shore hardness A of 68 and the windbreak strips (142, 242) have a Shore hardness A of 72.

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