WO2022181770A1 - ばね部材 - Google Patents
ばね部材 Download PDFInfo
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- WO2022181770A1 WO2022181770A1 PCT/JP2022/007909 JP2022007909W WO2022181770A1 WO 2022181770 A1 WO2022181770 A1 WO 2022181770A1 JP 2022007909 W JP2022007909 W JP 2022007909W WO 2022181770 A1 WO2022181770 A1 WO 2022181770A1
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- Prior art keywords
- spring
- protrusions
- substrate
- substrate portion
- spring member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
- F16F1/182—Leaf springs with inter-engaging portions between leaves or between leaves and mountings, e.g. ridges, notches, ripples
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
Definitions
- the present invention relates to spring members. This application claims priority based on Japanese Patent Application No. 2021-029867 filed in Japan on February 26, 2021, the content of which is incorporated herein.
- a substrate portion is provided between a pair of pressed bodies facing each other in a first direction, and has a substrate portion whose front and back surfaces face the first direction.
- a spring member is known in which a plurality of spring protrusions projecting in one direction are formed, and the spring protrusions urge a pair of pressed bodies away from each other in a first direction.
- the spring constant cannot be varied between a plurality of positions in the creeping direction along the plane perpendicular to the first direction. There is a problem that the type is likely to be limited.
- a spring member is a spring member provided between a pair of pressed bodies facing each other in a first direction. a plurality of substrate portions stacked in the first direction, each of the substrate portions protruding toward one of the pair of the pressed bodies to be pressed, and the pair of the pressed bodies A plurality of spring protruding pieces are formed to urge the bodies in directions away from each other in the first direction.
- One of the substrate portions has an insertion hole through which the spring projection piece of the other substrate portion is inserted in the first direction.
- the spring constant at at least some of the plurality of locations where the spring protrusions are provided is equal to the spring constant at the other locations.
- constant it is possible to obtain a spring member with different spring constants among a plurality of positions in the creeping direction. Since it has a plurality of substrates laminated in the first direction, it is possible to easily widen the range of selection of physical property values such as Young's modulus of the plurality of spring protrusions, and it is possible to apply the spring member. It is possible to make it difficult to create restrictions on the structure and type of products that are difficult to use.
- a spring member according to a second aspect of the present invention is a spring member provided between a pair of pressed bodies that face each other in a first direction, and includes one substrate portion whose front and back surfaces face the first direction. a plurality of spring projecting pieces are formed on the substrate portion so as to project in the first direction and urge the pair of pressed members in directions away from each other in the first direction; Among them, the thickness of at least some of the spring protrusions is different from the thickness of the other spring protrusions.
- the thickness of at least some spring protrusions among the plurality of spring protrusions is different from the thickness of the other spring protrusions, the spring protrusions between the plurality of positions in the surface direction spring members having different spring constants can be easily obtained.
- the volume of the spring protrusion provided at the partial location is equal to the above It may differ from the volume of the spring projecting pieces provided at other locations.
- the volume of the spring protrusions is equal to the spring protrusions provided at some locations and the spring protrusions provided at other locations among the plurality of spring protrusions formed on the one substrate portion, are different from each other, it is possible to easily obtain a spring member having different spring constants among a plurality of positions in the creeping direction.
- the number of the spring protrusions positioned at the part of the locations is different from the number of the spring protrusions positioned at the other locations, and the plurality of springs positioned at the same locations.
- the projecting pieces may be stacked in the first direction.
- the number of spring protrusions located at at least some of the plurality of locations where spring protrusions are provided in the surface direction is different from the number of spring protrusions located at other locations. Therefore, it is possible to easily obtain a spring member having different spring constants among a plurality of positions in the surface direction.
- the Young's modulus of the material forming at least one of the plurality of substrate portions may be different from the Young's modulus of the materials forming the other substrate portions.
- the Young's modulus of the material forming at least one of the plurality of substrate portions is different from the Young's modulus of the material forming the other substrate portions.
- Spring members with different spring constants can be easily obtained.
- At least part of the portion of the substrate portion that contacts the pressed body is electrically insulated from the pressed body, and the pair of pressed bodies are electrically connected to each other. They may be mutually insulated and urged to move away from each other in the first direction.
- the spring is suitable for products that require electrical insulation between the pair of pressed bodies. parts can be obtained.
- the spring constant can be varied between a plurality of positions in the surface direction along the plane perpendicular to the first direction.
- FIG. 1B is a cross-sectional view taken along line 1B-1B of FIG. 1A; It is the top view which looked at the spring member of 2nd Embodiment from the 1st direction.
- FIG. 2B is a cross-sectional view taken along line 2B-2B of FIG. 2A; It is the top view which looked at the spring member of 3rd Embodiment from the 1st direction.
- FIG. 3B is a cross-sectional view taken along line 3B-3B of FIG. 3A; It is the top view which looked at the spring member of 4th Embodiment from the 1st direction.
- FIG. 1B is a cross-sectional view taken along line 1B-1B of FIG. 1A; It is the top view which looked at the spring member of 2nd Embodiment from the 1st direction.
- FIG. 2B is a cross-sectional view taken along line 2B-2B of FIG. 2A; It is the top view which looked at the spring member of 3rd Embodiment from
- FIG. 4B is a cross-sectional view taken along line 4B-4B of FIG. 4A; It is the top view which looked at the spring member of 5th Embodiment from the 1st direction.
- FIG. 5B is a cross-sectional view taken along line 5B-5B of FIG. 5A;
- FIG. 11 is a longitudinal sectional view along the first direction and the second direction showing the main part of the spring member of the sixth embodiment; It is the top view which looked at the spring member of 7th Embodiment from the 1st direction.
- 7B is a cross-sectional view taken along line 7B-7B of FIG. 7A; FIG. It is the top view which looked at the spring member of 8th Embodiment from the 1st direction.
- FIG. 8B is a cross-sectional view taken along line 8B-8B of FIG. 8A; It is the top view which looked at the spring member of 9th Embodiment from the 1st direction.
- FIG. 9B is a cross-sectional view taken along line 9B-9B of FIG. 9A;
- the spring member 1 of this embodiment is provided between a pair of pressed bodies W1 and W2 facing each other in the first direction Z, as shown in FIGS. 1A and 1B.
- the spring member 1 includes a plurality of substrate portions 11a and 11b stacked in the first direction Z. As shown in FIG.
- the substrate portions 11a and 11b are provided with the front and back surfaces facing in the first direction Z, respectively.
- the substrate portions 11a and 11b adjacent to each other in the first direction Z are fixed to each other by, for example, welding, crimping, frames, pins, or fastening members.
- the substrate portions 11a and 11b are made of, for example, carbon steel or stainless steel.
- the board portions 11a and 11b adjacent to each other in the first direction Z are arranged in a creeping direction along a plane orthogonal to the first direction Z (that is, in a direction parallel to the plane or in the first direction) by a frame, a pin, or the like. perpendicular to Z).
- Each of the substrate portions 11a and 11b protrudes toward one of the pair of pressed bodies W1 and W2 to move the pair of pressed bodies W1 and W2 away from each other in the first direction Z.
- a plurality of spring projections 12 are formed to bias in the direction.
- the spring projecting piece 12 has a rectangular shape with four sides when viewed from the first direction Z. As shown in FIG. When viewed from the first direction Z, the spring projecting piece 12 has a rectangular shape in which the lengths of the opposite sides of the four side portions are equal to each other. Note that the spring protrusion 12 may have a trapezoidal shape or the like when viewed from the first direction Z. As shown in FIG.
- One of the four side portions is a base end portion 12a connected to the substrate portions 11a and 11b, and the other side opposite to the base end portion 12a is a tip portion 12b.
- 12 extends toward the one pressed body from the base end 12a toward the tip end 12b.
- the spring projecting piece 12 extends obliquely in one of the direction parallel to the first direction Z and toward the one pressed body and one of the creeping directions.
- the front and back surfaces of the spring projecting piece 12 extend linearly from the base end portion 12a toward the tip end portion 12b.
- the front and back surfaces of the spring projecting piece 12 may extend in a curved shape from the base end portion 12a toward the tip end portion 12b.
- the direction in which the plurality of spring protrusions 12 formed on each of the substrate portions 11a and 11b extend from the base end portion 12a toward the tip portion 12b in the creeping direction along the plane orthogonal to the first direction Z is are identical to each other. This orientation is also the same for the substrate portions 11a and 11b.
- the direction perpendicular to the proximal end portion 12a and the distal end portion 12b of the spring projection 12 is referred to as the second direction X
- the direction along the proximal end portion 12a and the distal end portion 12b of the spring projection 12 is referred to as the second direction X. It is called 3 directions Y.
- a plurality of spring protrusions 12 are provided in the second direction X at equal pitch intervals, and are provided in the third direction Y at equal pitch intervals.
- the interval in the second direction X and the interval in the third direction Y are different from each other, but they may be equal.
- the pitch intervals in the second direction X and the third direction Y may be non-uniform, or may be different between the substrate portions 11a and 11b.
- the directions in which the plurality of spring projecting pieces 12 formed on each substrate portion of the substrate portions 11a and 11b protrude in the first direction Z are the same. This orientation is also the same for the substrate portions 11a and 11b. As shown in FIG. 1B, the plurality of spring projecting pieces 12 protrude toward the first pressed body W1 of the pair of pressed bodies W1 and W2. Of the plurality of spring protrusions 12 formed on each of the substrate portions 11a and 11b, some of the spring protrusions 12 and the other spring protrusions 12 protrude in the first direction Z. The directions may be opposite to each other.
- the positions in the first direction Z of the tip portions 12b of the plurality of spring projecting pieces 12 formed on each of the substrate portions 11a and 11b are the same. Note that the positions of the tip portions 12b in the first direction Z may be different from each other.
- the inclination angles with respect to the first direction Z of the plurality of spring protrusions 12 formed on each of the substrate portions 11a and 11b are equal to each other. This inclination angle is also the same in the substrate portions 11a and 11b.
- the inclination angle of at least some spring protrusions 12 among the plurality of spring protrusions 12 formed on each of the substrate portions 11a and 11b is made different from the inclination angle of the other spring protrusions 12. good too.
- the spring projection piece 12 of the other second substrate portion 11b is attached to the first substrate portion 11a located closer to the first pressed body W1.
- a plurality of first insertion holes 13 that are inserted in the first direction Z are formed.
- the first insertion holes 13 are separately provided at all positions facing the plurality of spring projecting pieces 12 in the first direction Z in each of the substrate portions 11a and 11b.
- the size of the first insertion hole 13 is equal to or greater than the size of the spring projecting piece 12 facing the first insertion hole 13 in the first direction Z in each of the substrate portions 11a and 11b.
- the spring projecting piece 12 and the first insertion hole 13 are formed by press molding.
- the spring protrusions 12 formed on the two substrate portions 11a and 11b are stacked in the first direction Z at all locations where the spring protrusions 12 are provided.
- the central portions of the spring protrusions 12 stacked in the first direction Z in the third direction Y are aligned with each other.
- the spring constant at at least some of the locations R1 differs from the spring constant at the other locations R2 in the creeping direction.
- the plurality of spring protrusions 12 formed on the substrate portions 11a and 11b at least some spring protrusions 12 and other spring protrusions 12 have different volumes.
- the volume of the spring protrusion 12 provided at the location R1 is different from the volume of the other spring protrusions 12 provided at location R2.
- At least one of the length, width, and thickness of the spring protrusions 12 is at least part of the plurality of spring protrusions 12 formed on the respective substrate portions 11a and 11b; It is different from other spring protrusions 12 .
- the length of the spring protrusion 12 provided at the location R1 is At least one of the length, width and thickness differs from the other spring tongues 12 provided at location R2.
- the plurality of spring protrusions 12 formed on each of the substrate portions 11a and 11b have the same external dimensions such as length, width, and thickness, and are penetrated through the spring protrusions 12 in the thickness direction.
- the volume of the spring protrusions 12 is divided into at least some spring protrusions 12 and other spring protrusions among the plurality of spring protrusions 12 formed on each of the substrate portions 11a and 11b.
- the strips 12 may be different from each other.
- the plurality of spring projecting pieces 12 formed on the first substrate portion 11a positioned closer to the first pressed body W1 have the same size.
- the spring located in the surface direction central region (including location R1) of the second substrate portion 11b among the plurality of spring projecting pieces 12 formed on the other second substrate portion 11b.
- the width of the projecting piece 12 is narrower than the width of the spring projecting piece 12 located at the outer peripheral edge portion (including the location R2) of the second substrate portion 11b.
- the width and volume of some of the spring protrusions 12 provided at the location R1 are equal to those of the other spring protrusions provided at the location R2. less than the width and volume of strip 12;
- the width of the spring projection piece 12 positioned on the outer peripheral edge of the second substrate portion 11b is equal to the width of the spring projection piece 12 formed on the first substrate portion 11a.
- the lengths of the plurality of spring protrusions 12 formed on the two substrate portions 11a and 11b are made equal to each other, and the thicknesses of the plurality of spring protrusions 12 formed on the two substrate portions 11a and 11b are different from each other. are equal.
- the two substrate portions 11a and 11b are made of the same material.
- the two substrate portions 11a and 11b have the same thickness.
- the spring constant of each location provided on the outer peripheral edge of the spring member 1 is equal to the central region of the spring member 1 in the creeping direction. It is higher than the spring constant of each place provided.
- the spring constant at at least some of the plurality of locations where the spring protrusions 12 are provided in the creeping direction is equal to the spring constant at the other locations.
- constant it is possible to obtain the spring member 1 having different spring constants among a plurality of positions in the creeping direction. Since a plurality of substrate portions 11a and 11b are laminated in the first direction Z, it is possible to easily widen the range of selection of physical property values such as Young's modulus of the plurality of spring protrusions 12. It is possible to make the products to which the spring member 1 can be applied less likely to be restricted in terms of structure and type.
- the spring member 1 having different spring constants among a plurality of positions in the surface direction.
- FIGS. 2A and 2B a spring member 2 according to a second embodiment of the invention will be described with reference to FIGS. 2A and 2B.
- the same reference numerals are assigned to the same components as in the first embodiment, the description thereof is omitted, and only the different points will be described.
- the plurality of spring protrusions 12 formed on the first substrate portion 11a are formed to have the same size (volume) as each other, and the plurality of spring protrusions formed on the second substrate portion 11b are formed to have the same size (volume).
- some of the spring protrusions 12 have different lengths (the size in the second direction X) from the other spring protrusions 12 .
- the length of the spring projecting piece 12 located in the central region (including the point R1) in the surface direction of the second board portion 11b is equal to the length of the outer peripheral edge of the second board portion 11b (the point R1). (including R2)).
- the length of the spring projection piece 12 positioned on the outer peripheral edge of the second substrate portion 11b is equal to the length of the spring projection piece 12 formed on the first substrate portion 11a.
- the widths of the spring projections 12 formed on the two substrates 11a and 11b are the same, and the thicknesses of the spring projections 12 formed on the two substrates 11a and 11b are the same. It has become. From the above, in the spring member 2 , among the plurality of locations where the spring protrusions 12 are provided, the spring constants of the locations provided on the outer peripheral edge of the spring member 2 in the creeping direction are It is lower than the spring constant of each point provided in the central region of the direction.
- the length of the spring protrusions 12 is at least part of the plurality of spring protrusions 12 formed on the substrate portions 11a and 11b. Since the spring projecting piece 12 and the other spring projecting piece 12 are different from each other, it is possible to easily obtain the spring member 2 having different spring constants among a plurality of positions in the surface direction.
- FIGS. 3A and 3B a spring member 3 according to a third embodiment of the invention will be described with reference to FIGS. 3A and 3B.
- the same reference numerals are assigned to the same components as those in the first embodiment, the description thereof is omitted, and only the different points are described.
- the plurality of spring protrusions 12 formed on the first substrate portion 11a are formed to have the same size, and the plurality of spring protrusions 12 formed on the second substrate portion 11b are Among them, the thickness of some of the spring protrusions 12 is different from the thickness of the other spring protrusions 12 . As shown in FIGS. 3A and 3B, the thickness of the spring projecting piece 12 located in the central region (including the point R1) in the creeping direction of the second board portion 11b is greater than the thickness of the outer peripheral portion (the point R1) of the second board portion 11b. (including R2).
- the thickness of the spring projection piece 12 positioned on the outer peripheral edge of the second substrate portion 11b is the same as the thickness of the spring projection piece 12 formed on the first substrate portion 11a.
- the lengths of the plurality of spring protrusions 12 formed on the two substrate portions 11a and 11b are the same, and the widths of the plurality of spring protrusions 12 formed on the two substrate portions 11a and 11b are the same. It has become.
- the spring constant of each location provided on the outer peripheral edge of the spring member 3 is equal to It is higher than the spring constant of each point provided in the central region of the direction.
- the thickness of the first substrate portion 11a is uniform over the entire area.
- the thickness of the central region in the surface direction of the second substrate portion 11b is thinner than the thickness of the outer peripheral portion of the second substrate portion 11b.
- the thickness of the outer peripheral portion of the second substrate portion 11b is the same as the thickness of the first substrate portion 11a.
- the concave portion 11c is formed in the central region in the surface direction of the surface facing the second pressed body W2 of the pair of pressed bodies W1 and W2.
- the thickness of the central region in the surface direction of the substrate portion 11b is thinner than the thickness of the outer peripheral portion of the second substrate portion 11b.
- the concave portion 11c is formed by etching, cutting, pressing, or the like, for example.
- the plurality of spring protrusions 12 in this embodiment are formed by press molding after forming the recesses 11c.
- the spring members When the concave portion 11c is formed, for example, work hardening or the like occurs, and if the central region of the second substrate portion 11b in the surface direction becomes hard, the spring members may The spring constant of each point provided on the outer peripheral edge of the spring member 3 may be lower than the spring constant of each point provided on the central region of the spring member 3 in the surface direction.
- the concave portion 11c may be formed on the surface facing the first pressed body W1 of the pair of pressed bodies W1 and W2 among the front and back surfaces of the second substrate portion 11b.
- the thickness of the spring protrusions 12 is the same as that of at least some of the plurality of spring protrusions 12 formed on the respective substrate portions 11a and 11b. Since the spring projecting piece 12 and the other spring projecting piece 12 are different from each other, it is possible to easily obtain the spring member 3 having different spring constants among a plurality of positions in the surface direction.
- FIGS. 4A and 4B a spring member 4 according to a fourth embodiment of the invention will be described with reference to FIGS. 4A and 4B.
- the same reference numerals are assigned to the same components as in the first embodiment, the description thereof is omitted, and only the different points will be described.
- the plurality of spring projecting pieces 12 formed on the respective substrate portions 11a and 11b are formed with the same size.
- a plurality of spring protrusions 12 are formed only in the outer peripheral edge portion (including the location R2) of the second substrate portion 11b, and the spring protrusions 12 are formed in the central region (including the location R1) in the surface direction. The central region in the creepage direction is formed flat.
- the number of spring projections 12 located at each location provided on the outer peripheral edge of the spring member 4 among the plurality of locations where the spring projections 12 are provided in the creeping direction is The number of spring protrusions 12 is greater than the number of spring protrusions 12 located at each location in the central region in the surface direction. That is, in the surface direction, the number of spring protrusions 12 located at at least some of the plurality of locations where spring protrusions 12 are provided is different from the number of spring protrusions 12 located at other locations. ing.
- the number of spring protrusions 12 positioned at each location on the outer peripheral edge of the spring member 4 is two, and these spring protrusions 12 are stacked in the first direction Z.
- the number of spring projecting pieces 12 located at each location in the central region in the creeping direction of the spring member 4 is one. That is, at the location R2, the two spring protrusions 12 of the substrate portions 11a and 11b are stacked together, and at the location R1, only the spring protrusion 12 of the substrate portion 11a is provided.
- the spring constant of each location provided on the outer peripheral edge of the spring member 4 is equal to the central region of the spring member 4 in the creeping direction. It is higher than the spring constant of each place provided.
- the number of the spring protrusions 12 located at at least some of the plurality of locations where the spring protrusions 12 are provided in the creeping direction is , and the number of spring protrusions 12 located at other locations is different, it is possible to easily obtain a spring member 4 having different spring constants among a plurality of locations in the creeping direction.
- a spring member 5 according to a fifth embodiment of the invention will be described with reference to FIGS. 5A and 5B.
- the same reference numerals are assigned to the same components as in the first embodiment, and the description thereof will be omitted, and only the different points will be described.
- the plurality of spring projecting pieces 12 formed on each of the substrate portions 11a and 11b are formed to have the same size.
- a plurality of spring projecting pieces 12 are formed only on the outer peripheral edge of the first substrate portion 11a, and a second insertion hole 14 is formed in the central region in the surface direction.
- the second insertion hole 14 is larger than the spring projecting piece 12 formed on the second substrate portion 11b.
- a plurality of spring protrusions 12 are formed only in the central region in the surface direction of the second substrate portion 11b, and no spring protrusions 12 are formed on the outer peripheral edge, and the outer peripheral edge is formed flat. It is
- a plurality of spring protrusions 12 formed on the second substrate portion 11b are inserted in the first direction Z through the second insertion holes 14 of the first substrate portion 11a. All of the plurality of spring projecting pieces 12 formed on each of the substrate portions 11a and 11b come into contact with the first pressed body W1.
- the length of the spring projection piece 12 formed on the second substrate portion 11b is longer than the length of the spring projection piece 12 formed on the first substrate portion 11a. Note that the length of the former may be the same as the length of the latter.
- the number of spring protrusions 12 located at each location where the spring protrusions 12 are provided is one.
- the Young's modulus of the material forming the first substrate portion 11a is different from the Young's modulus of the material forming the second substrate portion 11b. That is, the Young's modulus of the material forming at least one substrate portion among the plurality of substrate portions 11a and 11b is different from the Young's modulus of the material forming the other substrate portions.
- the spring constants of the locations provided on the outer peripheral edge of the spring member 5 are equal to the central region of the spring member 5 in the creeping direction. It is different from the spring constant of each place provided.
- the material itself of the material is made different. You may change conditions, such as.
- the Young's modulus of the material forming at least one of the plurality of substrate portions 11a and 11b is the same as that of the material forming the other substrate portions. Since it is different from the Young's modulus, it is possible to easily obtain the spring member 5 having different spring constants among a plurality of positions in the creeping direction.
- a spring member 6 according to a sixth embodiment of the invention will be described with reference to FIG.
- the same reference numerals are assigned to the same components as those in the fifth embodiment shown in FIGS. 5A and 5B, the description thereof is omitted, and only the different points are described. .
- the thickness of the plurality of spring protrusions 12 formed on the second substrate portion 11b is different from the thickness of the plurality of spring protrusions 12 formed on the first substrate portion 11a.
- the Young's modulus of the material forming the first substrate portion 11a is the same as the Young's modulus of the material forming the second substrate portion 11b.
- the thickness of the plurality of spring protrusions 12 formed on the second substrate portion 11b is thinner than the thickness of the plurality of spring protrusions 12 formed on the first substrate portion 11a.
- the thickness of the second substrate portion 11b is thinner than the thickness of the first substrate portion 11a.
- the spring constants of the locations provided on the outer peripheral edge of the spring member 5 are equal to the central region of the spring member 5 in the creeping direction. It is higher than the spring constant of each place provided.
- the thickness of the plurality of spring protrusions 12 formed on the second substrate portion 11b may be thicker than the thickness of the plurality of spring protrusions 12 formed on the first substrate portion 11a.
- the thickness of the second substrate portion 11b may be thicker than the thickness of the first substrate portion 11a.
- the Young's modulus of the material forming the first substrate portion 11a may be different from the Young's modulus of the material forming the second substrate portion 11b.
- the thickness of the plurality of spring protrusions 12 formed on the second substrate portion 11b is equal to the thickness of the plurality of spring protrusions formed on the first substrate portion 11a.
- the plurality of spring projecting pieces 12 formed on the second substrate portion 11b are inserted through the second insertion holes 14 of the first substrate portion 11a in the first direction Z. All of the plurality of spring projecting pieces 12 formed on the substrate portions 11a and 11b of the are in contact with the first pressed body W1, so that the spring member 6 having different spring constants among a plurality of positions in the creeping direction can be easily obtained. etc.
- FIGS. 7A and 7B a spring member 7 according to a seventh embodiment of the invention will be described with reference to FIGS. 7A and 7B.
- the same reference numerals are assigned to the same components as those in the fourth embodiment shown in FIGS. 4A and 4B, and the description thereof will be omitted, and only the points of difference will be described. .
- the first substrate portion 11a is made of an electrically insulating material
- the second substrate portion 11b is made of a metal material.
- the length (the size in the second direction X) of the plurality of spring protrusions 12 formed on the second substrate portion 11b is shorter than the length of the spring protrusions 12 formed on the first substrate portion 11a.
- the plurality of spring projecting pieces 12 formed on the portion 11b are non-contact.
- the first substrate portion 11a may be made of a metal material, and at least the spring projection piece 12 of the first substrate portion 11a may be covered with an electrical insulating material.
- the pair of pressed bodies W1 and W2 are electrically insulated and urged in the first direction Z so as to separate from each other. It is possible to obtain the spring member 7 suitable for products requiring electrical insulation between the pair of pressed bodies W1 and W2.
- FIGS. 8A and 8B a spring member 8 according to an eighth embodiment of the invention will be described with reference to FIGS. 8A and 8B.
- the same reference numerals are assigned to the same components as those in the fifth embodiment shown in FIGS. 5A and 5B, and the description thereof will be omitted, and only the different points will be described. .
- the first substrate portion 11a is made of a metal material
- the second substrate portion 11b is made of an electrically insulating material.
- the length (the size in the second direction X) of the plurality of spring protrusions 12 formed on the second substrate portion 11b is longer than the length of the spring protrusions 12 formed on the first substrate portion 11a. All of the plurality of spring protrusions 12 formed on the respective substrate portions 11a and 11b abut on the first pressed member W1 with which the spring protrusion 12 abuts among the pair of pressed members W1 and W2.
- the spring projecting piece 12 of the first substrate portion 11a made of a metal material is in contact with the pressed body W1.
- the second substrate portion 11b is made of a metal material, and at least a portion of the second substrate portion 11b, which is in contact with the second pressed body W2 of the pair of pressed bodies W1 and W2, is electrically insulated.
- a configuration covered with a material or the like may be adopted.
- the pair of pressed bodies W1 and W2 are electrically insulated and urged so that they move away from each other in the first direction Z. It is possible to obtain the spring member 8 suitable for products requiring electrical insulation between the pair of pressed bodies W1 and W2.
- FIGS. 9A and 9B a spring member 9 according to a ninth embodiment of the invention will be described with reference to FIGS. 9A and 9B.
- the same reference numerals are assigned to the same components as those in the third embodiment shown in FIGS. 3A and 3B, and the description thereof will be omitted, and only the differences will be described. .
- the spring member 9 of the present embodiment includes one second substrate portion 11b whose front and back surfaces face the first direction Z. As shown in FIG. The spring member 9 is not provided with the first substrate portion 11a described in the above embodiment. Among the plurality of spring protrusions 12 formed on the second substrate portion 11b, at least some of the spring protrusions 12 have thicknesses different from those of the other spring protrusions 12. As shown in FIG. As shown in FIGS.
- the spring protrusion located in the surface direction central region (including the point R1) of the second board portion 11b
- the thickness of the piece 12 is thinner than the thickness of the spring projecting piece 12 positioned at the outer peripheral edge (including the location R2) of the second substrate portion 11b.
- the thickness of the central region in the surface direction of the second substrate portion 11b is thinner than the thickness of the outer peripheral portion of the second substrate portion 11b.
- the concave portion 11c is formed in the central region in the creepage direction of the surface facing the second pressed body W2, so that the thickness of the central region in the creepage direction of the second substrate portion 11b is reduced.
- the spring projecting piece 12 in this embodiment is formed by press molding after forming the concave portion 11c. All of the plurality of spring projecting pieces 12 formed on the second substrate portion 11b come into contact with the first pressed body W1. From the above, in the creeping direction, among the plurality of locations where the spring protrusions 12 are provided, the spring constant of each location provided on the outer peripheral edge of the spring member 9 is equal to the central region of the spring member 9 in the creeping direction. It is higher than the spring constant of each place provided.
- the spring members When the concave portion 11c is formed, for example, work hardening or the like occurs, and if the central region of the second substrate portion 11b in the surface direction becomes hard, the spring members may The spring constant of each point provided on the outer peripheral edge of the spring member 9 may be lower than the spring constant of each point provided on the central region of the spring member 9 in the surface direction.
- the concave portion 11c may be formed on the surface facing the first pressed body W1 of the pair of pressed bodies W1 and W2 among the front and back surfaces of the second substrate portion 11b.
- the thickness of at least some spring protrusions 12 out of the plurality of spring protrusions 12 is different from the thickness of the other spring protrusions 12 . Therefore, it is possible to easily obtain the spring member 9 having different spring constants among a plurality of positions in the surface direction.
- three or more substrate parts may be provided. That is, in addition to the substrate portions 11a and 11b, another substrate portion may be provided.
- the spring constants of the locations provided on the outer peripheral edge of the spring member are equal to the central region of the spring member in the creeping direction.
- the present invention is not limited to this. It may be changed as appropriate, such as by changing the shape.
- tip portions 12b are separately provided on both sides sandwiching the base end portion 12a in the second direction X, and when viewed from the third direction Y, a V-shaped or U-shaped configuration is provided. may be adopted.
- the projecting directions of two spring projecting pieces 12 adjacent to each other in the second direction X may be opposite to each other.
- At least some of the spring protrusions 12 and the other spring protrusions 12 extend from the base end portion 12a to the tip end portion 12b in the surface direction. may be different from each other.
- a configuration in which tip portions 12b of spring projecting pieces 12 formed on substrate portions 11a and 11b adjacent to each other in the first direction Z are stacked in the first direction Z may be adopted.
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- Mechanical Engineering (AREA)
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Abstract
Description
本願は、2021年2月26日に日本に出願された特願2021-029867号に基づき優先権を主張し、その内容をここに援用する。
第1方向に積層された複数の基板部を備えているので、複数のばね突片の例えばヤング率等の物性値の選択の幅を容易に広げること等が可能になり、ばね部材を適用可能な製品に構造や種類上の制限を生じさせにくくすることができる。
本実施形態のばね部材1は、図1Aおよび図1Bに示されるように、第1方向Zで互いに対向する一対の被押圧体W1、W2の間に設けられる。ばね部材1は、第1方向Zに積層された複数の基板部11a、11bを備えている。基板部11a、11bは、各々の表裏面が第1方向Zに向けられた状態で設けられている。第1方向Zで互いに隣り合う基板部11a、11bは、例えば溶接、加締め、枠体、ピン、若しくは締結部材等により互いに固定されている。基板部11a、11bは、例えば炭素鋼、若しくはステンレス鋼等で形成されている。
なお、第1方向Zで互いに隣り合う基板部11a、11bは、枠体、若しくはピン等により、第1方向Zに直交する平面に沿う沿面方向(すなわち当該平面に平行な方向、または第1方向Zに直交する方向)で互いに位置決めされてもよい。
ばね突片12は、第1方向Zから見て、4つの辺部分を有する矩形状を呈する。ばね突片12は、第1方向Zから見て、4つの辺部分のうちの対辺の長さが互いに等しい矩形状を呈する。なお、ばね突片12は、第1方向Zから見て、台形状等を呈してもよい。
以下、沿面方向のうち、ばね突片12における基端部12aおよび先端部12bに直交する方向を第2方向Xといい、ばね突片12における基端部12aおよび先端部12bに沿う方向を第3方向Yという。
なお、第2方向Xおよび第3方向Yそれぞれのピッチ間隔を、不均一にしてもよいし、基板部11a、11bにおいて互いに異ならせる等してもよい。
なお、基板部11a、11bの、各基板部に形成された複数のばね突片12のうち、一部のばね突片12と、他のばね突片12と、で第1方向Zに突出する向きを互いに逆向きにしてもよい。
基板部11a、11bの、各基板部に形成された複数のばね突片12の、第1方向Zに対する傾斜角度は互いに同等になっている。この傾斜角度は、基板部11a、11bにおいても互いに同等になっている。なお、それぞれの基板部11a、11bに形成された複数のばね突片12のうち、少なくとも一部のばね突片12の前記傾斜角度を、他のばね突片12の前記傾斜角度と異ならせてもよい。
第1挿通孔13は、それぞれの基板部11a、11bにおいて、複数のばね突片12と第1方向Zで対向する全ての位置に各別に設けられている。第1挿通孔13の大きさは、それぞれの基板部11a、11bにおいて、第1挿通孔13と第1方向Zで対向するばね突片12の大きさ以上となっている。本実施形態では、ばね突片12および第1挿通孔13は、プレス成形により形成されている。
なお、それぞれの基板部11a、11bに形成された複数のばね突片12について、長さ、幅、および厚さといった外形寸法を互いに同じにしたうえで、ばね突片12に厚さ方向に貫く貫通孔を形成することによって、ばね突片12の体積を、それぞれの基板部11a、11bに形成された複数のばね突片12のうち、少なくとも一部のばね突片12と、他のばね突片12と、で互いに異ならせてもよい。
以上より、沿面方向において、ばね突片12が設けられている複数個所のうち、ばね部材1の外周縁部に設けられている各個所のばね定数が、ばね部材1における沿面方向の中央領域に設けられている各個所のばね定数より高くなっている。
第1方向Zに積層された複数の基板部11a、11bを備えているので、複数のばね突片12の例えばヤング率等の物性値の選択の幅を容易に広げること等が可能になり、ばね部材1を適用可能な製品に構造や種類上の制限を生じさせにくくすることができる。
なお、この第2実施形態においては、第1実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
以上より、ばね部材2では、沿面方向において、ばね突片12が設けられている複数個所のうち、ばね部材2の外周縁部に設けられている各個所のばね定数が、ばね部材2における沿面方向の中央領域に設けられている各個所のばね定数より低くなっている。
なお、この第3実施形態においては、第1実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
以上より、ばね部材3では、沿面方向において、ばね突片12が設けられている複数個所のうち、ばね部材3の外周縁部に設けられている各個所のばね定数が、ばね部材3における沿面方向の中央領域に設けられている各個所のばね定数より高くなっている。
第2基板部11bの表裏面のうち、一対の被押圧体W1、W2のうちの第2被押圧体W2を向く面における沿面方向の中央領域に、凹部11cが形成されることで、第2基板部11bにおける沿面方向の中央領域の厚さが、第2基板部11bの外周縁部の厚さより薄くなっている。凹部11cは、例えばエッチング、切削、若しくはプレス等により形成される。本実施形態における複数のばね突片12は、凹部11cの形成後に、プレス成形により形成されている。
凹部11cは、第2基板部11bの表裏面のうち、一対の被押圧体W1、W2のうちの第1被押圧体W1を向く面に形成してもよい。
なお、この第4実施形態においては、第1実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
以上より、沿面方向において、ばね突片12が設けられている複数個所のうち、ばね部材4の外周縁部に設けられている各個所のばね定数が、ばね部材4における沿面方向の中央領域に設けられている各個所のばね定数より高くなっている。
なお、この第5実施形態においては、第1実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
第1基板部11aのうち、外周縁部にのみ複数のばね突片12が形成され、沿面方向の中央領域には第2挿通孔14が形成されている。第2挿通孔14は、第2基板部11bに形成されたばね突片12より大きくなっている。第2基板部11bのうち、沿面方向の中央領域にのみ複数のばね突片12が形成され、外周縁部には、ばね突片12が形成されておらず、外周縁部は、平坦に形成されている。
以上より、沿面方向において、ばね突片12が設けられている複数個所のうち、ばね部材5の外周縁部に設けられている各個所のばね定数が、ばね部材5における沿面方向の中央領域に設けられている各個所のばね定数と異なっている。
なお、第1基板部11aと第2基板部11bとで材料のヤング率を異ならせるには、材料の材質そのものを異ならせるほか、同じ材質の材料に対して、例えば熱処理等の有無、若しくは熱処理等の条件を異ならせてもよい。
なお、この第6実施形態においては、図5Aおよび図5Bに示した第5実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
図6に示すように、第2基板部11bに形成された複数のばね突片12の厚さが、第1基板部11aに形成された複数のばね突片12の厚さより薄くなっている。第2基板部11bの厚さが、第1基板部11aの厚さより薄くなっている。
なお、第2基板部11bに形成された複数のばね突片12の厚さを、第1基板部11aに形成された複数のばね突片12の厚さより厚くしてもよい。第2基板部11bの厚さを、第1基板部11aの厚さより厚くしてもよい。また、第1基板部11aを形成する材料のヤング率を、第2基板部11bを形成する材質のヤング率と異ならせてもよい。
なお、この第7実施形態においては、図4Aおよび図4Bに示した第4実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
なお、第1基板部11aとして、金属材料で形成され、かつ第1基板部11aのうちの少なくともばね突片12が電気絶縁材料で被覆された構成等を採用してもよい。
なお、この第8実施形態においては、図5Aおよび図5Bに示した第5実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
なお、第2基板部11bとして、金属材料で形成され、かつ第2基板部11bのうち、少なくとも一対の被押圧体W1、W2のうちの第2被押圧体W2に当接する部分が、電気絶縁材料で被覆された構成等を採用してもよい。
なお、この第9実施形態においては、図3Aおよび図3Bに示した第3実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
第2基板部11bに形成された複数のばね突片12の全てが、第1被押圧体W1に当接する。
以上より、沿面方向において、ばね突片12が設けられている複数個所のうち、ばね部材9の外周縁部に設けられている各個所のばね定数が、ばね部材9における沿面方向の中央領域に設けられている各個所のばね定数より高くなっている。
凹部11cは、第2基板部11bの表裏面のうち、一対の被押圧体W1、W2のうちの第1被押圧体W1を向く面に形成してもよい。
前記実施形態では、沿面方向において、ばね突片12が設けられている複数個所のうち、ばね部材の外周縁部に設けられている各個所のばね定数が、ばね部材における沿面方向の中央領域に設けられている各個所のばね定数と異なっている構成を示したが、これに限らず例えば、第2方向X、若しくは第3方向Yの複数の位置の間で異ならせたり、沿面方向において千鳥状に異ならせたりする等、適宜変更してもよい。
この構成において、第1方向Zで互いに隣り合う基板部11a、11bに形成された各ばね突片12の先端部12b同士が、第1方向Zに積層された構成等を採用してもよい。
11a、11b 基板部
12 ばね突片
12a 基端部
12b 先端部
13 第1挿通孔(挿通孔)
14 第2挿通孔(挿通孔)
W1、W2 被押圧体
X 第2方向
Y 第3方向
Z 第1方向
Claims (6)
- 第1方向で互いに対向する一対の被押圧体の間に設けられるばね部材であって、
前記第1方向に積層された複数の基板部を備え、
それぞれの前記基板部に、一対の前記被押圧体のうちのいずれか一方の被押圧体に向けて突出し、一対の前記被押圧体を互いが前記第1方向に離反する向きに付勢する複数のばね突片が形成され、
前記第1方向で互いに隣り合う2つの前記基板部のうち、前記一方の被押圧体寄りに位置する前記基板部には、もう一方の前記基板部の前記ばね突片が、前記第1方向に貫通した状態で挿通された挿通孔が形成され、
前記第1方向に直交する平面に沿う沿面方向において、前記ばね突片が設けられている複数個所のうち、少なくとも一部の個所におけるばね定数が、他の個所におけるばね定数と異なっている、ばね部材。 - 複数の前記基板部の、少なくとも1つの基板部に形成された複数の前記ばね突片のうち、前記一部の個所に設けられた前記ばね突片の体積が、前記他の個所に設けられた前記ばね突片の体積と異なっている、請求項1に記載のばね部材。
- 前記一部の個所に位置する前記ばね突片の数量が、前記他の個所に位置する前記ばね突片の数量と異なるとともに、同一の個所に位置する複数の前記ばね突片は、前記第1方向に積層されている、請求項1または2に記載のばね部材。
- 複数の前記基板部のうち、少なくとも1つの前記基板部を形成する材料のヤング率は、他の前記基板部を形成する材料のヤング率と異なっている、請求項1から3のいずれか1項に記載のばね部材。
- 前記基板部のうち、前記被押圧体に当接する部分の少なくとも一部は、この被押圧体に対して電気的に絶縁され、
一対の前記被押圧体を、電気的に絶縁した状態で互いが前記第1方向に離反する向きに付勢する、請求項1から4のいずれか1項に記載のばね部材。 - 第1方向で互いに対向する一対の被押圧体の間に設けられるばね部材であって、
表裏面が前記第1方向を向く基板部を1つ備え、
前記基板部に、前記第1方向に突出し、一対の前記被押圧体を互いが前記第1方向に離反する向きに付勢する複数のばね突片が形成され、
複数の前記ばね突片のうち、少なくとも一部の前記ばね突片の厚さが、他の前記ばね突片の厚さと異なっている、ばね部材。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/278,512 US20240229886A9 (en) | 2021-02-26 | 2022-02-25 | Spring member |
| CN202280016571.7A CN116888377A (zh) | 2021-02-26 | 2022-02-25 | 弹簧部件 |
| JP2022551606A JP7186337B1 (ja) | 2021-02-26 | 2022-02-25 | ばね部材 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021029867 | 2021-02-26 | ||
| JP2021-029867 | 2021-02-26 |
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| Publication Number | Publication Date |
|---|---|
| WO2022181770A1 true WO2022181770A1 (ja) | 2022-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/007909 Ceased WO2022181770A1 (ja) | 2021-02-26 | 2022-02-25 | ばね部材 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240229886A9 (ja) |
| JP (1) | JP7186337B1 (ja) |
| CN (1) | CN116888377A (ja) |
| WO (1) | WO2022181770A1 (ja) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53129030U (ja) * | 1977-03-22 | 1978-10-13 | ||
| JPS5410149U (ja) * | 1977-06-23 | 1979-01-23 | ||
| JP5703737B2 (ja) * | 2010-12-16 | 2015-04-22 | 日産自動車株式会社 | 燃料電池スタック |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29915339U1 (de) * | 1999-09-01 | 2000-01-05 | Hartmann, Siegbert, 32584 Löhne | Federkörper |
| JP5336396B2 (ja) * | 2009-07-14 | 2013-11-06 | 株式会社ニフコ | バンドクリップ |
| US10233980B2 (en) * | 2016-12-13 | 2019-03-19 | GM Global Technology Operations LLC | Spring pack assembly for a torque transmitting device |
| CN106763380B (zh) * | 2017-01-03 | 2019-02-19 | 山东理工大学 | 一级渐变刚度板簧的各片主簧下料长度的设计方法 |
-
2022
- 2022-02-25 WO PCT/JP2022/007909 patent/WO2022181770A1/ja not_active Ceased
- 2022-02-25 JP JP2022551606A patent/JP7186337B1/ja active Active
- 2022-02-25 CN CN202280016571.7A patent/CN116888377A/zh active Pending
- 2022-02-25 US US18/278,512 patent/US20240229886A9/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53129030U (ja) * | 1977-03-22 | 1978-10-13 | ||
| JPS5410149U (ja) * | 1977-06-23 | 1979-01-23 | ||
| JP5703737B2 (ja) * | 2010-12-16 | 2015-04-22 | 日産自動車株式会社 | 燃料電池スタック |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7186337B1 (ja) | 2022-12-08 |
| US20240133442A1 (en) | 2024-04-25 |
| US20240229886A9 (en) | 2024-07-11 |
| JPWO2022181770A1 (ja) | 2022-09-01 |
| CN116888377A (zh) | 2023-10-13 |
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