Ice skate balde

Description

Technical field

[0001] The present invention relates to the field of ice skate blades for use in ice sports. State of the art

[0002] In ice sports, development and product improvement in recent years have been characterized by a conservative approach, with almost exclusively established technologies and construction methods used in the production of equipment (helmets, boots, sticks, blades). As a result, ice sports equipment has hardly changed in the last 20 years. This has led to modern ice skates still being relatively heavy.

[0003] Modern ice skates generally consist of a boot, a blade holder, and a blade, each of which is attached to the blade holder either by positive or non-positive locking. A removable blade is often desirable to allow for quick replacement in case of damage or wear during use, as well as for easy sharpening. However, a significant weight factor, and therefore a disadvantage, is the relatively heavy steel blade in combination with its blade holder.

[0004] In the current state of the art, a variety of removable and therefore replaceable ice skate blades are known. Typically, such removable blades are made of stamped steel. To reduce the overall weight of ice skates, various manufacturers are attempting to reduce the weight of the removable blades. Accordingly, blades have been developed in which the steel component of the blade is reduced and partially replaced with aluminum to lower the weight. For figure skating, for example, a blade is produced in which the blade holder is made entirely of carbon fiber, leaving only a small steel blade in contact with the ice surface.

[0005] Other manufacturers are focusing on weight reduction by using new blade attachment mechanisms. In one method, only the bottom part of the blade is replaced, while the upper part remains attached to the blade holder. This has the advantage that only the bottom part of the blade needs to be made of steel, while the upper part can be made of a lighter material such as plastic. Documents US6761363B2 and US2010 / 176564A1 disclose an ice skate blade with an insert element arranged in at least one recess but without a surrounding steel frame around the recess. Document US2013 / 093150A1 does not disclose any blade attachment elements on the upper surface of the steel frame as a counterpart for attaching the ice skate blade to the blade holder of the respective ice skate. Description of the invention

[0006] In many ice sports, such as ice hockey, the primary contact between the skate and the ice occurs in the middle section of the blade. This means the forces acting on the blade are significantly greater in this area than at the front or back. To compensate for this, skate blades generally have a special grind in the middle section. This grind allows for the adjustment of various characteristics preferred by the user; however, the heavy use of the middle section of the blade negatively impacts its wear, requiring frequent replacement. To extend the lifespan of a skate blade, they are generally made of stainless steel, which can be resharpened after wear.Since a steel skate blade is quite heavy, many manufacturers try to reduce its weight, but this negatively impacts the blade's stability. As a result, skate blades known in the prior art either exhibit unsatisfactory stability and / or are very heavy.

[0007] Another disadvantage of conventional ice skate blades is their short lifespan. With extended use, there is a significant loss of the blade that is in contact with the ice. This means that if the blade is not replaceable, the entire skate, or at least the blade and skate holder, must be replaced.

[0008] The general object of the invention is therefore to further develop the prior art in the field of ice skate blades and preferably to overcome one or more disadvantages of the prior art. In advantageous embodiments, an ice skate blade with a weight reduction is provided which, with the same performance and stability, preferably exhibits improved maneuverability.

[0009] The general problem of the invention is solved in a general manner by the subject matter of the independent claims. Further advantageous embodiments become apparent from the dependent claims and the disclosure as a whole.

[0010] The ice skate blade according to the invention comprises a steel frame. The steel frame has at least one stabilizing element, which forms at least one recess. Furthermore, the steel frame has at least one insert element arranged in the at least one recess. The ice skate blade also has blade support elements. The steel frame extends horizontally over the length of the blade along a longitudinal axis between a first and a second end, and the blade length includes a front section, a middle section, and a rear section, with the front section comprising the first end and the rear section the second end. The steel frame also has a first side surface and a second side surface. The first and second side surfaces are opposite each other and define a blade thickness extending between them. The steel frame also has a blade height.The blade height extends vertically along a vertical axis across a lower and an upper chord, the lower chord comprising a steel frame underside and the upper chord comprising a steel frame topside. Between the lower and upper chords lies at least one recess formed by at least one stabilizing element. These recesses in the steel frame achieve a significant weight reduction while maintaining the same stability compared to conventional steel ice skate blades. This is particularly advantageous because, in this design, both the weight can be significantly reduced and the maneuverability significantly improved while maintaining the same stability and performance.

[0011] Directional terms, as used in the present disclosure, are used in relation to the ice skate blade. These directional terms are to be understood as follows: The vertical direction of the ice skate blade is described by a vertical axis from the lower to the upper rib and thus extends vertically from bottom to top along the Y-axis in the positive direction of the ice skate blade. The longitudinal direction of the ice skate blade, in the context of the present invention, denotes a direction from the first end to the second end, or, in use, from the toe towards the heel of the wearer, and runs perpendicular to the vertical axis and thus horizontally along a longitudinal axis parallel to the X-axis in the positive direction of the ice skate blade.In the present invention, the terms "front" and "rear" describe the orientation of the ice skate blade in the direction of travel, which, in use, aligns with the direction defined by the user as the forward direction. The transverse axis of the ice skate blade is defined by the blade thickness and runs transversely to the X and Y axes along the Z axis.

[0012] The blade mounting elements on the skate blade are located on the top of the steel frame and form the corresponding counterpart for attaching the skate blade to the blade holder of the respective skate. Depending on the type of ice sport, the player's position, and the design of the complementary blade holder, the blade mounting elements on the skate blade are available in different configurations. Typically, the blade mounting elements are arranged on the upper chord of the steel frame in the front and rear sections. In other configurations, additional blade mounting elements may be arranged in the middle section of the steel frame. The blade mounting elements may be designed with cutouts for further weight reduction.

[0013] The steel frame and the blade mounting elements located on the upper chord are typically formed in one piece. The steel frame and the blade mounting elements are preferably made of stainless steel with a Rockwell hardness of 50 to 60, preferably with a Rockwell hardness of 54 to 56, such as Sandvik 12C27 knife steel, which is suitable for blade manufacturing. Typically, to increase the durability of the skate blade, the steel frame is coated with an additional layer, for example, a titanium coating. However, it goes without saying that the steel frame can also be made from a combination of two or more metal materials and / or alloys of one or more metals that meet the definition of steel.

[0014] The blade length of the steel frame, and thus of an ice skate blade, extends over a front, a middle, and a rear section and is limited by the two opposite ends. The first and second ends are typically curved for ice hockey, bandy, and figure skating, and can vary in their curvature and design. Depending on the ice sport and / or player position, and due to different designs, the blade lengths of ice skate blades can vary, and the respective ends of a skate blade can be curved to different degrees. Typically, the blade length for ice hockey, bandy, and figure skating ranges from 151 mm to 330 mm, and for speed skating, from 150 mm to 550 mm, with the front section comprising approximately 10% to 20% of the total length.40%, the middle section approximately 60% to 80% of the total length, in the case of ice skate blades for figure skating approximately 40%, and the rear section approximately 10% to 20% of the total length.

[0015] Depending on the ice sport and / or player position, the blade height of the steel frame of an ice skate blade can vary. Typically, the blade height, which extends over a lower and upper rib, ranges from 10 mm to 60 mm for ice hockey or bandy, preferably from 15 mm to 50 mm, and particularly preferably from 15 mm to 25 mm. For figure skating and speed skating, it ranges from 20 mm to 100 mm, preferably from 25 mm to 90 mm, and particularly preferably from 40 mm to 75 mm. Due to the ice sport and / or player position, as well as the different designs, various ice skate blade configurations exist, which is why the height extending between the lower and upper ribs can vary depending on the specific design.The blade height, and thus also the height between the lower and upper blades including the cutouts, varies not only depending on the design of the skate blade, but also within the blade itself due to the blade's geometry and various designs. Typically, the height between the lower and upper blades ranges from 5 mm to 55 mm, with a range of 5 mm to 15 mm preferred for ice hockey, bandy, and speed skating.

[0016] The blade thickness formed by the opposing first and second side surfaces can be in a range between 2.5 mm and 4.5 mm, preferably in a range of 2.85 mm to 3.2 mm for an ice hockey field player, preferably in a range of 3.5 mm to 4.0 mm for an ice hockey goalie, preferably in a range of 3.5 mm to 4.2 mm for a bandy player or figure skater, and preferably in a range of 0.8 mm to 3.0 mm for a speed skater.

[0017] In preferred embodiments, the first side surface and the second side surface of the steel frame are arranged parallel to each other and each define a first and a second side plane which are parallel to each other.

[0018] Alternatively, depending on the design and construction, the lower and upper chords may differ in their runner thickness.

[0019] The recesses located between the lower and upper chords in the steel frame form a depth extending along a transverse plane with respect to the blade thickness. In the side view of an ice skate blade, a recess area can occupy between 20% and 80%, preferably between 50% and 80%, of the total area of ​​the ice skate blade. Furthermore, it is understood that the term "recess" used in this disclosure is to be understood as meaning that the recess(es) can be depressions with a transverse depth or complete openings. Moreover, the embodiments of one or more recesses in the same steel frame can differ from the other recesses.

[0020] The at least one recess formed by the at least one stabilizing element can be distributed along the entire length of the blade and thus be present in each of the three sections defining the blade length, or only in one and / or two sections. Preferably, however, recesses are present in each section of the blade length, or the recess extends over all three sections. If the steel frame contains several recesses present in each section of the blade length, then the lengths of the recesses differ due to the relative sizes of the respective sections. Furthermore, the recesses can differ in their geometry and number depending on the embodiment of the ice skate blade. The respective geometries of the recesses are typically triangular, quadrilateral, and / or pentagonal, as well as generally polygonal, and adapt to the geometry and design of the respective embodiment of the ice skate blade.Furthermore, the term "angular" also includes designs that are slightly rounded and therefore not completely angular. Alternatively, the geometry of the cutouts can be circular or oval.

[0021] In further embodiments, the at least one recess-forming stability element can consist of at least one partition and / or at least one strut.

[0022] In further embodiments, the partition(s) are parallel and have the same thickness. The partition thickness ranges from 0.4 mm to 3.5 mm.

[0023] In further embodiments, in which the stabilizing elements comprise at least one partition, the partition is arranged parallel between the first and second lateral planes, and the first and second lateral planes are parallel to each other. The at least one recess formed by the partition, preferably parallel to the first and / or second lateral plane, lies between the first and / or second lateral plane. The distance between the first lateral plane and the partition and / or the distance between the second lateral plane and the partition defines the transverse depth of the at least one recess. Preferably, the transverse depth of the at least one recess is an equidistant transverse depth between both lateral planes and the partition. Furthermore, the recesses between the two lateral planes are preferably symmetrical to each other.

[0024] Furthermore, openings can be arranged in the partition for additional weight reduction. These openings are preferably circular with a diameter of 1 mm to 10 mm, more preferably between 4 mm and 8 mm, the number of local openings depending on the respective size of the partition area and the resulting recess. Alternatively, the local openings can also be polygonal.

[0025] In further embodiments, the stabilizing elements can consist of one or more struts and two or more partitions. The at least one strut can be arranged in the front, middle, or rear section between the lower chord and the upper chord, and can extend at an angle relative to an axis parallel to the vertical axis. Preferably, the strut extends at an angle such that optimal transmission and distribution of the forces acting on the steel frame and the struts from the skid mounting elements is ensured. If two or more struts are present, one strut is preferably arranged between the front and middle sections, and another strut is preferably arranged between the middle and rear sections of the steel frame.

[0026] Preferably, the struts are arranged as two essentially parallel straight lines with a width of 0.1 mm to 10 mm, preferably 1.5 mm to 5 mm. Alternatively, the struts can also be arranged as two concave lines, with the maximum width of each strut being between 0.1 mm and 10 mm, preferably 1.5 mm to 5 mm. Furthermore, the partitions are preferably arranged as plane-parallel partitions with a partition thickness of between 0.4 mm and 3.5 mm, wherein the partitions are arranged parallel between the first and second lateral planes, and wherein the first and second lateral planes are parallel to each other.The recesses formed by the struts and partitions lie between the first and / or second side planes, with the distance between the first side plane and the partitions and / or the distance between the second side plane and the partitions defining the transverse depth of the recesses. Preferably, the transverse depth of the recesses is equidistant between both side planes and the partitions. Furthermore, the recesses between the two side planes are preferably symmetrical to each other. Additionally, the partitions can also have further openings for weight reduction, as described in detail above.

[0027] In further embodiments, the stabilizing elements can be configured solely as struts, with the resulting openings forming complete through-holes. In embodiments where the stabilizing elements are configured solely as struts, the steel frame has at least two struts. Preferably, one strut is arranged between the front and middle sections, and a second strut is arranged between the middle and rear sections of the steel frame. Additional struts can be arranged in the front, middle, and / or rear sections. Furthermore, the struts between the upper and lower chords preferably extend at an angle relative to an axis parallel to the vertical axis, ensuring optimal transmission and distribution of the forces exerted by the skid mounting elements on the steel frame and the struts.

[0028] In a particular embodiment, especially in an embodiment for figure skating skate blades, the steel frame includes a further recess in the front section of the steel frame. The recess is formed by a strut which extends at an angle relative to an axis parallel to the vertical axis in order to generate sufficient stability at a lower weight when the front section of the steel frame is subjected to a load from jumps or pirouettes, etc.

[0029] In some embodiments, recessed locking elements are arranged on the steel frame. Additional recessed locking elements may be required, for example, if the stabilizing elements are only present as struts and the resulting recesses are complete openings. The recessed locking elements can be located on the opposing first and second side faces as transversely recessed inwards, such as in the form of webs, or between the opposing first and second side faces as recesses, such as in the form of a groove, or between the opposing first and second side faces as projections, such as in the form of springs.

[0030] If the recessed form-fitting elements are in the form of depressions, such as ribs, the recesses, which are set back transversely inwards, can completely encompass and define the respective recess, or be arranged as individual segments around the respective recess, with the depressions on the first and second side faces preferably being arranged symmetrically to each other. The depressions are set back transversely inwards from the first and second side faces, respectively, by a distance of 0.1 mm to 1.2 mm, preferably 0.5 mm to 0.8 mm. Furthermore, the depressions each have a depth of 0.1 mm to 1.2 mm, preferably 0.2 mm to 0.5 mm, where the depth corresponds to the distance between the recess and the depression. That is, the depth can extend in a vertical and / or horizontal direction, depending on the position of the depression on the steel frame.

[0031] If the recess locking elements are in the form of recesses, such as grooves, the recesses formed as recess locking elements are preferably arranged on the surfaces facing the bottom flange and / or top flange, whereby the recesses can be continuous recesses on these surfaces or recess segments. Alternatively, the recesses can also be arranged around the entire recess. Preferably, the recesses are arranged centrally between the first and second side surfaces and have a recess thickness of between 1.0 mm and 2.0 mm, preferably between 1.45 mm and 1.5 mm, in the transverse direction. Furthermore, the recesses each have a recess height or recess depth, which can be in a range of 0.5 mm to 3.0 mm, preferably between 1.0 mm and 2.0 mm.Depending on the location of the recess on the steel frame, the depth of the depression can extend in a vertical and / or horizontal direction.

[0032] The recesses between the lower and upper chords contain insert elements. These insert elements are connected to the recesses by a form-fit, material-fit, or force-fit connection and can be in the form of inserts such as insert plates or as filler elements such as filler inserts or injection-molded filler elements. Furthermore, the insert elements can be made of thermoplastics or thermosets, preferably fiber-reinforced plastics, and particularly preferably carbon fiber-reinforced plastic inserts such as recycled carbon, or aluminum. If the partitions contain additional openings, or if the recesses formed by the struts are complete openings, the insert elements can either completely fill the recesses or, alternatively, leave an intermediate cavity which can be filled with a suitable filler material such as plastic foam.

[0033] The cutouts and the insert elements contained therein allow for a weight saving of 10% to 50%, preferably between 35% and 40%, compared to a conventional ice skate blade in its original state.

[0034] In some embodiments, the at least one insert element completely fills the at least one recess, wherein the recesses filled with insert elements have a skid thickness equal to or less than the skid thickness of the steel frame.

[0035] In preferred embodiments, the insert elements lie in a plane with the first side plane and / or the second side plane. That is, the insert elements are arranged flush with the first or second side surface, and the recesses with the insert elements arranged therein have a skid thickness equal to the skid thickness of the steel frame.

[0036] In embodiments in which recess locking means are arranged on the steel frame, the insert elements have insert locking means corresponding to the recess locking means.

[0037] If the recesses feature interlocking elements in the form of transversely recessed inwards, such as ribs, then the interlocking elements for the inserts are corresponding outwardly recessed inwards, such as ribs. The proportions of the outwardly recessed inwards correspond in shape, size, and position to the respective interlocking elements for the recesses in the form of transversely recessed inwards and can thus completely encompass and define the insert elements or be arranged as individual segments on the insert elements. The interlocking elements for the inserts, designed as outwardly recessed inwards, are shaped so that the recesses containing the insert elements do not exceed the thickness of the steel frame's skids.

[0038] If the recesses have interlocking elements in the form of cutouts, such as grooves, then the interlocking elements are corresponding projections, such as tongues. The proportions of the projections correspond in shape, size, and position to the respective interlocking elements in the form of cutouts, so that they fit into the respective cutouts and interlock positively, for example, with a tongue-and-groove connection.

[0039] In further embodiments, the steel frame can be provided with milled recesses on its upper surface. These recesses serve to further reduce weight. Typically, the entire upper surface of the steel frame, excluding the skid mounting elements, is understood to have milled recesses. Alternatively, however, only individual sections of the upper surface of the steel frame can be provided with milled recesses. The recesses can be arranged in a zigzag pattern, a wave pattern, or any other pattern suitable for weight reduction.

[0040] In one aspect, a method for manufacturing an ice skate blade according to the invention is provided. The manufacturing method comprises providing a steel frame having a blade length, a blade thickness, and a blade height extending over the lower and upper chords. Furthermore, the steel frame includes at least one recess between the lower and upper chords, formed by at least one stabilizing element. The method also includes the optional application of the recess locking devices and the optional milling of the recesses on the upper surface of the steel frame. Finally, the method includes inserting insert elements into the recesses.

[0041] In some embodiments, the insert elements are positively fitted into the recesses under pressure using an injection molding process. Typically, the insert elements in this process consist of short-chain fiber-reinforced plastic inserts. Alternatively, the insert elements can also be made of any plastic suitable for injection molding.

[0042] In some embodiments, the insert elements are bonded into the recesses using an adhesive process and / or pressed into the recesses using a force-fit process. If the insert elements are bonded, an adhesive, for example in the form of an adhesive film or a liquid adhesive such as epoxy (UD490), is applied to the recesses and / or to the recess locking elements and / or to the insert elements and / or to their locking elements. In these embodiments, the insert elements can, if necessary, be pre-shaped using a prepreg or another suitable method before the adhesive is applied. Following the application of the adhesive, the insert elements are bonded into the respective recesses at a temperature between 120°C and 180°C for a period of 1.30 to 2.0 hours and with pressure applied from both sides.Typically, the insert elements in this process consist of long-chain carbon fiber reinforced plastic inserts or aluminum. Alternatively, the insert elements can also be made of any suitable plastic. Alternatively, the insert elements can simply be pressed into the recesses using a force-fit method. Typically, the insert elements in this process consist of short-chain fiber reinforced plastic inserts or long-chain carbon fiber reinforced plastic inserts or aluminum. Brief explanation of the characters

[0043] Aspects of the invention are explained in more detail with reference to the exemplary embodiments shown in the following figures and the accompanying description. Fig. 1 shows a schematic exploded view of an ice skate blade according to an embodiment of the invention; Fig. 2 shows a schematic side view of an ice skate blade according to an embodiment of the invention; Fig. 3 shows a schematic cross-section in a perspective view of an ice skate blade according to an embodiment of the invention; Fig. 4 shows a schematic cross-section of a steel frame in a perspective view according to an embodiment of the invention; Fig. 5 shows a schematic side view of an ice skate blade according to an embodiment of the invention; Fig. 6 shows a schematic side view of an ice skate blade according to an embodiment of the invention; Fig. 7 shows a schematic side view of an ice skate blade according to an embodiment of the invention; Fig. 8 shows a schematic side view of an ice skate blade according to an embodiment of the invention. Ways to implement the invention

[0044] The in Figure 1 The exploded view shown depicts an embodiment of an ice skate blade 1 suitable for ice hockey, in which the steel frame 11 and the blade mounting elements 13-1, 13-2 are formed in one piece. The steel frame 11 shown in this embodiment has a blade thickness 15 of approximately 3 mm and extends along the longitudinal axis (see figure). Figure 2 ) in the positive x-direction between the curved first 1E and second 2E end. Furthermore, the steel frame 11 has two skid mounting elements 13-1, 13-2 on the upper steel frame surface 1421. The steel frame 11 shown in this embodiment also has four struts 111 between the lower chord and the upper chord, as well as five partitions arranged between the side plane of the first side surface 1S and the side plane of the second side surface 2S (see Figures 3 and 4 ) as stability elements. The struts 111 are located in the in Figure 1shown embodiment with a strut width (see Figure 3 ) as two essentially parallel straight lines. Furthermore, the struts 111 shown in this embodiment are arranged between the front and middle sections, between the middle and rear sections, and in the middle section (see Figure 2The strut 111 arranged between the front and middle sections, as well as the strut 111 arranged between the middle and rear sections, each extend at an angle relative to an axis parallel to the vertical axis to ensure optimal transmission and distribution of the forces acting on the steel frame and the struts from the skid mounting elements 13-1, 13-2. Furthermore, the two struts 111 arranged in the middle section each extend at an angle relative to an axis parallel to the vertical axis to achieve additional stability of the steel frame. The stabilizing elements included in this embodiment form ten recesses 112, each located between the first and second side planes of the first 1S and second 2S side walls and the partition.The recesses 112 are triangular and quadrilateral with rounded corners, the geometry of each recess 112 conforming to the geometry and design of the steel frame 11 of the ice skate blade 1. Furthermore, the recesses 112 are fitted with insert elements 12, which are shaped to correspond to the recesses 112. When inserted into the recesses 112, the insert elements 12 are flush with the first side surface 1S and the second side surface 2S, respectively, and thus do not project transversely beyond the blade thickness 15 of the steel frame 11.

[0045] The Figure 2Figure 1 shows a view of the first side surface 1S of an ice skate blade 1 according to an embodiment of the invention. It also illustrates the division of the blade length 16 from the first 1E to the second 2E end into a front section 161, a middle section 162, and a rear section 163, as well as the division of the blade height 14 into the lower chord 141 and upper chord 142, wherein the lower chord 141 comprises a steel frame underside 1411 and the upper chord 142 comprises a steel frame upperside 1421. These divisions serve only as guidelines for those skilled in the art and are not intended to define the exact boundaries of the areas.

[0046] The Figure 3 and Figure 4 show a perspective view of a cross-section along the height axis through the middle section (see Figure 2 ) through the in Figure 1The ice skate blade 1 shown. The steel frame 11 has a blade thickness 15 of 3.0 mm. The partitions 1121, which in this embodiment serve as stabilizing elements, are plane-parallel partitions with a partition wall thickness of 0.5 mm each. The partitions 1121 are arranged parallel between the first and second side planes of the first 1S and second 2S side walls, such that the resulting distance between the side planes and the partitions, and the resulting recesses, have equidistant transverse depths. Furthermore, the recesses located in the first and second side planes are arranged symmetrically to each other.

[0047] In the Figure 5Figure 1 shows an embodiment of an ice skate blade 1 according to the invention for figure skating. The steel frame 11 shown in this embodiment includes a blade length 16 of 270 mm extending between the first 1E and second 2E ends, wherein the front section 161 comprises 40%, the middle section 162 40%, and the rear section 162 20% of the blade length 16. The ice skate blade 1 shown further includes two blade retaining elements 13-1, 13-2, which are arranged on the upper surface of the steel frame in the front 161, at the boundary with the middle 162 section, and in the rear 163, at the boundary with the middle 162 section, respectively. The first end 1E shown in this embodiment has the serrated shape typical for figure skating. Furthermore, this embodiment includes additional recesses formed by struts in the front 161 and rear 163 sections.

[0048] The one in Figure 6The embodiment shown in the invention depicts a further ice skate blade 1 for ice hockey. The steel frame has a blade length 16 of 280 mm, with the front section 161 comprising 15%, the middle section 70%, and the rear section 15% of the blade length 16. In addition to a blade retention element 13-1 in the front section 161 and a blade retention element 13-2 in the rear section 163 of the steel frame, the ice skate blade 1 has a further blade retention element 13-3 in the middle section 162 of the steel frame. Furthermore, the blade retention elements 13-1, 13-2, and 13-3 have additional openings for weight reduction.

[0049] The one in Figure 7The embodiment shown according to the invention depicts a further ice skate blade 1 for bandy. The steel frame has a blade length 16 of 300 mm, wherein the front section 161 comprises 10%, the middle section 75%, and the rear section 15% of the blade length 16. Furthermore, the ice skate blade 1 has a blade retaining element 13-1 in the front section 161 and a blade retaining element 13-2 in the rear section of the steel frame.

[0050] The one in Figure 8The embodiment shown according to the invention depicts a further ice skate blade 1 for a goalie in ice hockey. The steel frame has a blade length 16 of 280 mm, wherein the front section 161 comprises 15%, the middle section 70%, and the rear section 15% of the blade length 16. In addition to a blade retaining element 13-1 in the front section 161 and a blade retaining element 13-2 in the rear section 163 of the steel frame, the ice skate blade 1 shown has a further blade retaining element 13-3 in the middle section 162 of the steel frame. List of reference symbols

[0051] 1 Skate blade 11 Steel frame 111 Struts 1111 Strut width 112 Recesses 1121 Partition 12 Insert elements 13-1, 13-2, 13-3 Blade mounting elements 14 Blade height 141 Bottom flange 1411 Steel frame underside 142 Top flange 1421 Steel frame topside 15 Blade thickness 16 Blade length 161 Front section 162 Middle section 163 Rear section 1E First end 2E Second end Y Vertical axis XL Longitudinal axis Z Transverse axis 1 First side surface 2 Second side surface

Claims

1. Skate blade (1), having: - a steel frame (11), wherein the steel frame (11) has at least one stability element and at least one recess (112) formed by the at least one stability element, - at least one insert element (12) arranged in the at least one recess (112), and - blade retaining elements (13-1, 13-2, 13-3); wherein the steel frame (11) extends horizontally along a longitudinal axis (X) between a first (1E) and a second (2E) end over a blade length (16), and wherein the blade length (16) includes a front section (161), a middle section (162), and a rear section (163), wherein the steel frame (11) has a first side surface (1S) and a second side surface (2S), wherein the first (1S) and second (2S) side surfaces face each other and define a blade thickness (15) extending therebetween, wherein the steel frame (11) has a blade height (14) that extends vertically along a height axis (Y) via a lower belt (141) and an upper belt (142), and wherein the lower belt (141) comprises a steel frame lower side (1411) and the upper belt (142) comprises a steel frame upper side (1421); wherein the at least one recess (112) formed by the at least one stability element is provided between the lower belt (141) and the upper belt (142).

2. Skate blade (1) according to claim 1, wherein the stability element consists of a partition wall (1121) and / or struts (111).

3. Skate blade (1) according to one of the previous claims, wherein the partition wall (1121) is a plane-parallel partition wall (1121).

4. Skate blade (1) according to one of claims 2 or 3, wherein the first side surface (1S) and the second side surface (2S) of the steel frame (11) are arranged parallel to each other and each define a first and a second side plane, wherein the partition wall (1121) is arranged parallel between the first and second side planes, and the at least one recess (112) formed by the partition wall (1121) is provided between the first and / or second side plane and the partition wall (1121), wherein the respective distance between the first side plane and the partition wall (1112) and / or second side plane and the partition wall (1112) defines the transverse depth of the at least one recess (112), wherein the transverse depth is preferably an equidistant transverse depth.

5. Skate blade (1) according to one of the preceding claims, wherein the at least one recess (112) of the first and second side planes are recesses (112) symmetrical to each other.

6. Skate blade (1) according to one of claims 2 to 5, wherein a strut (111) is arranged between the front section (161) and the middle section (162) and a further strut (111) is arranged between the middle section (162) and the rear section (163).

7. Skate blade (1) according to one of the previous claims, wherein recess-form-fitting means are arranged on the steel frame (11).

8. Skate blade (1) according to one of the previous claims, wherein the at least one insert element (12) completely fills the at least one recess (112).

9. Skate blade (1) according to one of the previous claims, wherein the at least one insert element (12) is aligned in a plane with the first side plane and / or second side plane.

10. Skate blade (1) according to one of the previous claims, wherein the at least one insert element (12) has insert-form-fitting means and corresponds in a form-fitting manner with the recess-form-fitting means.

11. Skate blade (1) according to one of the previous claims, wherein the steel frame (11) is provided with milled recesses on the steel frame upper side (1421).

12. Skate blade (1) according to one of the previous claims, wherein the recesses (112) occupy a recess area between 20% and 80% with respect to the total area of the skate blade (1).

13. Method for manufacturing a skate blade (1) according to one of the preceding claims, comprising: a. providing a steel frame (11) which has a blade length (16), a blade thickness (15) and a blade height (14), wherein at least one recess (112) formed by the stability element is provided between the lower belt (141) and upper belt (142) of the steel frame (11), b. Optional providing of the recess-form-fitting means, c. Optional providing of the milled recesses to the top side (1421) of the steel frame, d. Introducing of insert elements (12) into the recesses (112).

14. Method according to claim 13, wherein the insert elements (12) are introduced into the recesses (112) under pressure using an injection molding process.

15. Method according to claim 13, wherein the insert elements (12) are introduced into the recesses (112) in a material bonded manner using a bonding process and / or are pressed into the recesses (112) in a force-fitting manner.