WO2024095894A1 - Dispositif de sollicitation en rotation - Google Patents

Dispositif de sollicitation en rotation Download PDF

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Publication number
WO2024095894A1
WO2024095894A1 PCT/JP2023/038760 JP2023038760W WO2024095894A1 WO 2024095894 A1 WO2024095894 A1 WO 2024095894A1 JP 2023038760 W JP2023038760 W JP 2023038760W WO 2024095894 A1 WO2024095894 A1 WO 2024095894A1
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WO
WIPO (PCT)
Prior art keywords
coil
spring
locking
mounting body
spring mounting
Prior art date
Application number
PCT/JP2023/038760
Other languages
English (en)
Japanese (ja)
Inventor
寿 中曽称
Original Assignee
株式会社パイオラックス
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Filing date
Publication date
Application filed by 株式会社パイオラックス filed Critical 株式会社パイオラックス
Publication of WO2024095894A1 publication Critical patent/WO2024095894A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R7/00—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps
    • B60R7/04—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps in driver or passenger space, e.g. using racks
    • B60R7/06—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps in driver or passenger space, e.g. using racks mounted on or below dashboards
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/28—Locks for glove compartments, console boxes, fuel inlet covers or the like
    • E05B83/30—Locks for glove compartments, console boxes, fuel inlet covers or the like for glove compartments
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C21/00—Arrangements or combinations of wing fastening, securing, or holding devices, not covered by a single preceding main group; Locking kits
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/10—Actuating mechanisms for bars
    • E05C9/16—Actuating mechanisms for bars with crank pins and connecting rods

Definitions

  • the present invention relates to a rotational biasing device that uses a torsion coil spring to apply a rotational biasing force to a spring mounting body that is attached to a mounting member.
  • an opening formed in a fixed body such as a glove box of an automobile has an opening or closing body such as a lid that can be opened or closed.
  • an opening or closing body such as a lid that can be opened or closed.
  • Such an opening or closing body may be capable of being locked or opened via a pair of locking members.
  • a pair of locking members are slidably installed on the opening/closing body, and a rotational biasing device having a spring mounting body to which a torsion coil spring is attached is sometimes used to cause the pair of locking members to slide in sync.
  • the pair of locking members have their base ends connected to the spring mounting body, and the rotational biasing force of the torsion coil spring biases their tip ends in a direction that engages with the pair of locking members provided in the opening.
  • Patent Document 1 describes a locking device for an opening/closing body, which has a locking section provided on the opening of the fixed body or on the opening/closing body, a locking member slidably arranged on the opening/closing body or fixed body and engages and disengages with the locking section, a rotating member rotatably attached to the opening/closing body or fixed body via a rotating member attachment section, and a torsion spring that biases the locking member in a direction to engage with the locking section.
  • the torsion spring has a wound section and a pair of arms extending from the wound section.
  • the rotating member has a main body, a rotating shaft protruding from the back side of the main body, a spring support part that is approximately cylindrical and protrudes from the front side of the main body and exteriorizes the wound part of the torsion spring, and a spring engagement claw formed on the spring support part.
  • the spring engagement claw is formed to be flexible and deformable through a slit, and is composed of an elastic piece with a fixed end facing one end side of the spring support part (the main body side) and a free end facing the other end side of the spring support part (the side away from the main body), and a claw part protruding from the outside of the other end of the elastic piece.
  • the object of the present invention is therefore to provide a rotational biasing device that can improve the ease of mounting a torsion coil spring to a spring mounting body.
  • the present invention comprises a spring mounting body that is attached to a workpiece so as to be rotatable relative to the workpiece, and a torsion coil spring that is attached to the spring mounting body and applies a rotational force, the torsion coil spring having a coil portion formed by winding wire, a first arm portion that extends from the coil portion and is engaged with the spring mounting body, and a second arm portion that extends from the coil portion and is engaged with the workpiece, the spring mounting body having a base portion, a coil support portion that protrudes from the base portion and is positioned on the outside or inside of the coil portion to support the coil portion, and a claw portion that fits between the wire of the coil portion to hold the torsion coil spring in the spring mounting body and prevent it from coming loose.
  • the claws on the spring mounting body fit between the wires of the coil section, so that the torsion coil spring is mounted on the spring mounting body in a retaining state that prevents it from falling out, improving the ease of mounting the torsion coil spring to the spring mounting body.
  • FIG. 1 is an exploded perspective view showing an embodiment of a rotation biasing device according to the present invention
  • 13 is an exploded perspective view of a locking device when the rotation urging device is applied to a locking device for an opening/closing body.
  • FIG. FIG. 2 is an enlarged perspective view of a spring mounting body constituting the rotation biasing device according to the present invention, seen from a direction different from that in FIG. 1 .
  • FIG. FIG. 10 is an explanatory diagram showing how a torsion coil spring is mounted on the spring mounting body.
  • FIG. 11 is an enlarged perspective view of a main portion of the spring mounting body with a torsion coil spring mounted thereon.
  • FIG. FIG. 9 is a plan view of FIG. 8 .
  • FIG. 8 is a cross-sectional view taken along the line A-A of FIG. 7 .
  • 8 is a cross-sectional view taken along the line BB of FIG. 7 .
  • 11 is an explanatory diagram of a case where an opening/closing body is closed by a locking device to which a rotational biasing device according to the present invention is applied.
  • FIG. 13 is an explanatory diagram of the case where the opening/closing body is opened by the locking device.
  • FIG. FIG. 13 is a perspective view of a spring mounting body constituting the rotational biasing device according to another embodiment of the present invention.
  • the rotational biasing device 10 of this embodiment has a spring mounting body 20 that is attached to the mounting member so as to be rotatable relative to the mounting member, and a torsion coil spring 50 (hereinafter also simply referred to as "spring 50") that is attached to the spring mounting body 20 and applies a rotational biasing force in a predetermined direction (see arrow R in FIG. 9 and FIG. 12).
  • spring 50 torsion coil spring 50
  • the opening/closing body 4 shown in FIG. 2 constitutes the "attached member” in the present invention. More specifically, the spring mounting body 20 is rotatably attached to the spring mounting body attachment portion 60 (hereinafter also simply referred to as the "attachment portion 60") provided on the inner member 6 constituting the opening/closing body 4 (see FIG. 8).
  • the spring 50 in this embodiment has a coil portion 53 formed by winding wire 51, a first arm portion 55 extending from the coil portion 53 and engaging with the spring mounting body 20, and a second arm portion 57 extending from the coil portion 53 and engaging with the mounting member, and is a so-called torsion spring.
  • one axial end of the coil portion 53 that is close to the base portion 21 (see FIG. 1) of the spring attachment body 20 is referred to as "one end 53a”
  • the other axial end of the coil portion 53 that is away from the base portion 21 is referred to as "the other end 53b.”
  • the axial direction of the coil portion 53 means the direction along the axis C1 of the coil portion 53 (see FIG. 7 and FIG. 11).
  • the coil portion 53 has a portion (sparsely wound portion) in which adjacent wire rods 51, 51 are wound with a gap 59 between them in the axial direction.
  • the coil portion 53 is formed from a sparsely wound portion from one end 53a to the other end 53b in the axial direction, and there is no densely wound portion with no gap 59 between the wire rods 51, 51.
  • the rotational biasing device 10 of this embodiment is also adapted to a locking device for an opening/closing body, for example a glove box, which is openably and closably attached to an opening 2 of a fixed body 1 such as a vehicle instrument panel, and is used to lock the opening/closing body 4.
  • a locking device for an opening/closing body for example a glove box, which is openably and closably attached to an opening 2 of a fixed body 1 such as a vehicle instrument panel, and is used to lock the opening/closing body 4.
  • a locking device for an opening/closing body for example a glove box, which is openably and closably attached to an opening 2 of a fixed body 1 such as a vehicle instrument panel, and is used to lock the opening/closing body 4.
  • the locking device of this embodiment is mainly composed of a pair of locking parts 3, 3 provided at the opening 2 of the fixed body 1, a pair of locking members 70, 70 arranged on the opening/closing body 4 and engaging with and disengaging from the pair of locking parts 3, 3, the spring mounting body 20 that is rotatably mounted on the opening/closing body 4 that forms the mounting member and to which the base ends 71, 71 of the pair of locking members 70, 70 are connected and that links the sliding movement of the pair of locking members 70, 70, the spring 50 that is mounted on the spring mounting body 20 and biases the tip ends 72, 72 of the pair of locking members 70, 70 in a direction in which they engage with the pair of locking parts 3, 3 (the direction of arrow E in Figure 12), and an operating member 80 that operates the sliding of the pair of locking members 70, 70.
  • hole-shaped locking portions 3, 3 are provided on both inner sides of the opening 2 of the fixed body 1 in the width direction.
  • the opening/closing body 4 in this embodiment is composed of an outer member 5 that is placed on the passenger compartment side, and an inner member 6 that is placed on the back side of the outer member 5.
  • a horizontally long rectangular concave storage recess 7 is formed above one widthwise side of the outer member 5.
  • An operating member 80 is stored in this storage recess 7.
  • a long hole-shaped mounting hole 8 is formed in the bottom 7a of the storage recess 7, and the operating member 80 is attached to this mounting hole.
  • front side refers to the side or surface that is located in the direction in which the opening/closing body opens from the opening of the fixed body, such as a vehicle.
  • the side facing the interior space of the vehicle may also be referred to as the "front side” or “surface side”.
  • reverse side refers to the side opposite the "front side” or “surface side”, i.e., the side or surface that is located in the direction in which the opening/closing body closes.
  • front side front surface side
  • back side rear surface side
  • the inner member 6 is generally box-shaped with an open top.
  • the upper portion of the surface side (front side) of the inner member 6 that faces the outer member 5 is provided with a horizontally long concave lock arrangement recess 6a in which the pair of lock members 70, 70 are slidably arranged.
  • Lock insertion holes 6b, 6b are formed on both longitudinal sides of the lock arrangement recess 6a.
  • the pair of locking members 70, 70 in this embodiment have the same shape, with the base end 71 bent in a crank shape and extending linearly toward the tip end, and the tip end 72 is adapted to engage and disengage with the locking portion 3 (see Figures 12 and 13).
  • a rectangular frame-shaped portion 73 is provided on the tip end 72 side of each locking member 70.
  • a connecting recess 74 is formed on the base end 71 of each locking member 70 for connecting to the spring mounting body 20 (see FIG. 1).
  • the operating member 80 in this embodiment is composed of a main body 81 that is fixed to the opening/closing body 4, and an operating body 83 that is rotatably attached to the main body 81.
  • the operating body 83 has its base end journaled on the main body 81, and its tip end rotates toward and away from the bottom 7a of the storage recess 7.
  • an operating lever protrudes from the back side of the operating body 83 and is inserted into the frame-shaped portion 73 of one of the locking members 70.
  • a mounting portion 60 is provided on the surface side of the bottom surface of the lock placement recess 6a for rotatably mounting the spring mounting body 20.
  • the mounting portion 60 is generally box-shaped with one side open, like a dog house, and is made up of a generally U-shaped peripheral wall 61 standing upright from the bottom surface of the lock placement recess 6a of the inner member 6, and a ceiling wall 63 located at the leading end of the standing direction of the peripheral wall 61.
  • a circular shaft support hole 64 is formed in the ceiling wall 63.
  • a spring locking wall 65 is erected at a position adjacent to the mounting portion 60.
  • This spring locking wall 65 has a locking groove 66 formed therein, which is an elongated groove. The second arm portion 57 of the spring 50 is inserted into this locking groove 66 to be locked.
  • the spring mounting body 20 has a base portion 21, a coil support portion 35 that protrudes from the base portion 21 and is positioned outside the coil portion 53 to support the coil portion 53, and a claw portion 45 that fits between the wires of the coil portion 53 (here, the gaps 59 between the wires 51, 51 adjacent in the axial direction) to hold the spring 50 in place on the spring mounting body 20.
  • the outside of the coil portion 53 means the outside in the radial direction of the coil portion 53 (it can also be said to be the radially outward direction).
  • the inside of the coil portion 53 means the inside in the radial direction of the coil portion 53 (it can also be said to be the radially inward direction).
  • the direction in which the spring 50 is pressed into the spring mounting body 20 in order to mount the spring 50 on the spring mounting body 20 is referred to as the "spring pressing direction F.”
  • the base portion 21 has a locking portion 28 to which the first arm portion 55 of the spring 50 is locked. Furthermore, in this embodiment, when the spring 50 is pressed against the spring mounting body 20 in a direction in which one axial end portion 53a of the coil portion 53 approaches the base portion 21, the claw portion 45 enters between the wires of the coil portion 53 (the gap 59 between the wires 51, 51 adjacent in the axial direction), and holds the spring 50 against the spring mounting body 20 so as not to come off.
  • the claw portion "enters between the wire rods of the coil portion” does not only mean, as in this embodiment, that the coil portion 53 has a sparsely wound portion and there is a gap 59 between the wire rods 51 adjacent in the axial direction of the coil portion 53, and the claw portion 45 enters the gap 59 (see FIG. 11), but also includes a case where the claw portion enters between the wire rods arranged closely in the axial direction in the densely wound portion of the coil portion by being pushed from the radial outside or the radial inside of the coil portion, so as to enter between the wire rods.
  • the base portion 21 constituting the spring mounting body 20 has a horizontally elongated, roughly diamond shape that extends long in one direction, as shown in Figures 4 and 5.
  • a roughly cylindrical rotating shaft 23 protrudes from the back side of the base portion 21 (the side facing the bottom surface of the lock arrangement recess 6a) at the center in the extension direction (also called the longitudinal direction).
  • the rotating shaft 23 is inserted into the shaft support hole 64 of the mounting portion 60, so that the spring mounting body 20 is rotatably supported on the mounting portion 60 (see FIG. 10).
  • the center of rotation of the spring mounting body 20 is referred to as "rotation center C2.”
  • the axis of the rotating shaft 23 coincides with the rotation center C2 of the spring mounting body 20.
  • each elastic engagement piece 25 has an engagement protrusion 26 protruding outward from the rotating shaft.
  • the engaging protrusions 26, 26 of the pair of elastic engaging pieces 25, 25 are positioned opposite the rear periphery of the shaft support hole 64.
  • the engaging protrusions 26 can engage with the rear periphery of the shaft support hole 64 while maintaining the rotational movement of the rotating shaft 23 inserted into the shaft support hole 64, and the rotating shaft 23 is held in place against the shaft support hole 64.
  • each locking member connecting part 27 protrude from both ends in the extension direction on the back side of the base part 21.
  • Each locking member connecting part 27 is inserted into and fitted into a connecting recess 74 formed in the base end part 71 of each locking member 70 (see FIG. 10), so that the base ends 71, 71 of the pair of locking members 70, 70 are rotatably connected to both ends of the base part 21 in the extension direction (see FIG. 8).
  • approximately rectangular locking portions 28, 28 are provided on the front side of both ends of the base portion 21 in the extension direction. As shown in FIG. 6, a locking protrusion 29 protrudes from the back side of each locking portion 28.
  • a flexible elastic contact piece 31 is formed between the rotation shaft 23 and the locking member connecting part 27 of the base part 21 via a roughly U-shaped slit 30.
  • Each elastic contact piece 31 is arranged with its fixed end facing one end of the base part 21 in the extension direction and its free end facing the center of the base part 21 in the extension direction.
  • a plurality of sliding protrusions 32 are provided on the back side of the base portion 21, extending radially from the axis of the rotating shaft 23 (the rotation center C2 of the spring mounting body 20).
  • sliding protrusions 32 come into contact with the surface of the ceiling wall 63 of the mounting part 60 when the spring mounting body 20 is rotatably attached to the mounting part 60.
  • each sliding protrusion 36 comes into sliding contact with the surface of the ceiling wall 63, reducing the contact area between the back side of the base part 21 and the surface of the ceiling wall 63, making it easier to rotate the spring mounting body 20.
  • a generally cylindrical coil insertion section 33 protrudes from the front side of the base section 21, at the center in the extension direction.
  • This coil insertion section 33 extends coaxially with the rotation shaft 23.
  • the axis of the coil insertion section 33 coincides with the rotation center C2 of the spring mounting body 20.
  • this coil insertion section 33 is arranged to be positioned inside the coil section 53 when the spring 50 is mounted on the spring mounting body 20.
  • the coil insertion section 33 serves the following functions:
  • the coil insertion portion 33 abuts against the inner circumference of the coil portion 53.
  • the coil portion 53 is prevented from shifting position from the center of the extension direction of the base portion 21, and the coil portion 53 can be stably positioned in the center of the extension direction of the base portion 21.
  • the coil insertion portion 33 is also used to align the coil portion 53 when mounting the spring 50 to the spring mounting body 20.
  • the coil support portion 35 is shaped to extend along the axial direction of the coil portion 53.
  • the coil support portion 35 is located in the center of the extension direction of the base portion 21 and has a pair of walls 37, 37 that protrude from both side edges in the width direction (direction perpendicular to the extension direction of the base portion 21) in a direction away from the surface of the base portion 21.
  • Each wall portion 37 is shaped to curve like a bow and extend in the extension direction of the base portion 21 when viewed from the planar direction shown in FIG. 4 (the direction along the axial direction of the rotating shaft 23 and the coil insertion portion 33) so as to fit the shape of both side edges in the width direction of the center portion in the extension direction of the base portion 21, which is shaped like a horizontally elongated, roughly diamond-like shape extending in one direction. It can also be said that each wall portion 37 is shaped to curve so as to be convex outward and extend in the extension direction of the base portion 21 when viewed from the planar direction.
  • each wall portion 37 is gently curved, and the thickness of the central portion in the extension direction is slightly thinner than the thickness of both sides in the extension direction.
  • the pair of walls 37, 37 are arranged opposite each other with the coil insertion portion 33 in between so that the center of their extension direction is aligned with the axis of the coil insertion portion 33 (the rotation center C2 of the spring mounting body 20). It can also be said that the pair of walls 37, 37 are arranged opposite each other with the rotation center C2 of the spring mounting body 20 in between.
  • the pair of walls 37, 37 constituting the coil support portion 35 are positioned outside the coil portion 53 when the spring 50 is attached to the spring attachment body 20. At this time, since the inner surface of each wall portion 37 is gently curved as described above, the inner surface of the central portion in the extension direction of each wall portion 37 and the adjacent portion are positioned so as to follow the outer periphery of the coil portion 53, as shown in Figure 9.
  • the pair of walls 37, 37 arranged on the outside of the coil portion 53 can also be said to extend (stand upright) along the axial direction of the coil portion 53.
  • the inner dimension of the pair of opposing wall portions 37, 37 i.e., the inner dimension L1 between the inner faces at the center of the extension direction of the pair of wall portions 37, 37 (the position passing through the rotation center C2 of the spring mounting body 20), is formed to match or be larger than the outer diameter D of the coil portion 53 (see FIG. 7).
  • a resilient piece 41 that can be bent is formed in the center of the extension direction of each wall portion 37 by a roughly U-shaped slit.
  • a pair of first slits 39, 39 extending parallel to each other along the axial direction are formed in the center of each wall portion 37 in the extension direction.
  • the ends of the pair of first slits 39, 39 on the base portion 21 side are connected to each other by a second slit 40 that extends along the extension direction of the wall portion 37 so as to be perpendicular to the pair of first slits 39, 39, forming a roughly U-shaped slit.
  • Each wall portion 37 has an elastic piece 41 formed on its inner side through the pair of first slits 39, 39 and second slit 40.
  • Each elastic piece 41 has its fixed end 42 positioned on the side of the wall 37 opposite the base 21 (positioned on the end of the wall 37 away from the base 21), and its free end 43 positioned on the side of the wall 37 facing the base 21 (positioned on the end of the wall 37 close to the base 21).
  • a claw portion 45 protrudes from a portion of each elastic piece 41 that is offset toward the base portion 21, in this case from the inside (inner surface) of the free end portion 43 of the elastic piece 41, toward the center of rotation C2 of the spring mounting body 20.
  • the thickness of the tip 46 of each claw portion 45 in the protruding direction (the length along the extension direction of the coil support portion 35) is formed to be smaller than the size of the gap 59 between the wires 51, 51 of the coil portion 53 (the length along the axial direction of the coil portion 53). This makes it possible for at least the tip 46 of each claw portion 45 to enter the gap 59 of the coil portion 53.
  • each claw portion 45 has a tapered other end side engagement surface 47 that gradually protrudes less from the very end of the tip portion 46 (the end surface that protrudes most from the inner surface of the elastic piece 41) toward the fixed end portion 42 of the elastic piece 41.
  • the other end side engaging surface 47 can engage with the outer periphery of the wire 51 located on the other end 53b side relative to the gap 59 (the wire 51 located below the paper surface of Figure 11 relative to the gap 59).
  • the tapered retaining surface 47 on the other end makes it easier for the claw portion 45 to enter the gap 59 in the coil portion 53, and also serves to increase the amount of contact (hanging margin) with the outer periphery of the wire 51.
  • the above-mentioned other end side engaging surface 47 can engage with the outer periphery of the wire 51 located on the other end 53b side even when the claw portion 45 enters between the closely arranged wires in the densely wound portion of the coil portion, making it easier for the claw portion 45 to enter between the wires and increasing the amount of contact with the outer periphery of the wire 51.
  • a one-end side locking surface 48 is provided on the opposite side of the other-end side locking surface 47 of each claw portion 45.
  • This one-end side locking surface 48 is capable of locking onto the outer periphery of the wire rod 51 located on the one-end side 53a relative to the gap 59 (the wire rod 51 located on the upper side of the paper in FIG. 11 relative to the gap 59) when the claw portion 45 enters into the gap 59 of the coil portion 53.
  • the one-end side locking surface 48 allows the claw portion 45 to lock onto the outer periphery of the wire rod 51 located on the one-end side 53a even when the claw portion 45 enters between closely arranged wire rods in the densely wound portion of the coil portion.
  • the distance L2 between the extreme ends 46, 46 of a pair of claws 45, 45 of a pair of wall portions 37, 37 arranged opposite each other across the coil insertion portion 33 is formed to be smaller than the outer diameter D of the coil portion 53 (see FIG. 7).
  • the following operations are performed.
  • the state in which the spring 50 is pressed into the spring mounting body 20 until one end 53a of the coil portion 53 abuts against the surface of the base portion 21 and further pressing of the spring 50 is restricted is referred to as the state in which the spring 50 is pressed maximally into the spring mounting body 20 in the spring pressing direction F (hereinafter, simply referred to as the "maximum spring pressing state").
  • the coil portion 53 is aligned so that it is positioned between the coil insertion portion 33 of the spring mounting body 20 and the pair of walls 37, 37 that constitute the coil support portion 35 (see Figures 7 and 11).
  • the spring 50 is pressed against the spring mounting body 20 in the spring pressing direction F so that one end 53a of the coil portion 53 approaches the surface of the base portion 21.
  • the coil insertion section 33 is inserted inside the coil section 53, and the pair of walls 37, 37 of the coil support section 35 are positioned outside the coil section 53, and the coil section 53 is pushed in while being guided by the pair of walls 37, 37, until one end 53a of the coil section 53 approaches the surface of the base section 21. At this time, the claw section 45 provided on the coil support section 35 does not get caught on the wire 51 of the coil section 53.
  • one end 53a of the coil portion 53 comes into contact with the surface of the base portion 21 (just before the maximum spring compression state)
  • one end 53a of the coil portion 53 comes into contact with the tapered other end side engagement surface 47 of the claw portion 45.
  • the other end side engagement surface 47 of the claw portion 45 is pressed against one end 53a of the coil portion 53, and the elastic piece 41 is bent outward.
  • the claw portion 45 that has entered the gap 59 engages the outer periphery of the wire 51 of the second turn from one end 53a of the coil portion 53 with the other end side engaging surface 47, and engages the outer periphery of the wire 51 of the first turn from one end 53a of the coil portion 53 with the one end side engaging surface 48.
  • the spring 50 is attached to the spring attachment body 20 in a state where it is held in place to prevent it from coming loose.
  • the claw portion 45 when the spring 50 is pressed into the spring mounting body 20, from the beginning of the pressing of the spring 50 until just before the maximum spring pressing state, the claw portion 45 does not catch on the wire 51 of the coil portion 53. It is only when the maximum spring pressing state is reached that the claw portion 45 overcomes the wire 51, and thereafter, when the maximum spring pressing state is reached, the claw portion 45 enters the gap 59 between the first turn of wire 51 and the second turn of wire 51 from one end 53a of the coil portion 53.
  • the claw portion 45 enters from one axial end portion 53a of the coil portion 53 that is close to the base portion 21 into the gap 59 in a portion that is equal to or less than 1/2 of the total number of turns of the wire 51 that winds around the coil portion 53, and it is even more preferable that the claw portion 45 enters into the gap 59 in a portion that is equal to or less than 1/3 of the total number of turns of the wire 51.
  • the claw portion 45 is configured to enter the gap 59 between the first turn of wire 51 and the second turn of wire 51 from one end 53a of the coil portion 53 toward the other end 53b of the coil portion 53, which is less than 1/2 of the total number of turns 5 of the wire 51 winding around the coil portion 53.
  • the first arm portion 55 of the spring 50 is disposed on the rear side of one of the locking portions 28 and hooked onto the locking projection 29, thereby locking the first arm portion 55 to the locking portion 28.
  • the second arm portion 57 of the spring 50 is inserted into and locked into the locking groove 66 of the spring locking wall 65, allowing the rotational biasing force of the spring 50 to act on the spring mounting body 20.
  • the spring mounting body 20 is rotated and biased, so that the tip ends 72, 72 of the pair of locking members 70, 70 are biased in a direction (arrow E direction in FIG. 12) in which they engage with the pair of locking portions 3, 3.
  • the tip ends 72, 72 of the pair of locking members 70, 70 are inserted through the lock insertion holes 6b, 6b provided in the lock arrangement recess 6a.
  • the operating lever of the operating member 80 presses against the inner surface of the frame-shaped portion 73 of one of the locking members 70, so that the tip portions 72, 72 of the pair of locking members 70, 70 can be slid in a direction that does not engage with the pair of locking portions 3, 3 of the fixed body 1 via the spring mounting body 20 (see FIG. 13).
  • the spring mounting body, torsion coil spring, and each of the components constituting the rotational biasing device of the present invention, as well as the locking portion, locking member, and operating member constituting the locking device of the opening/closing body using the rotational biasing device, and the shapes, structures, layouts, and the like of each of the components constituting these components are not limited to the above-mentioned aspects.
  • the rotation biasing device in this embodiment is used in a locking device for an opening/closing body, but it may also be used in a hinge structure of an opening/closing member that opens and closes via a hinge, or in a braking device that is attached between a pair of members that move toward or away from each other and applies a braking force when the pair of members move toward or away from each other, and there are no particular limitations on the location of application or use.
  • the rotational biasing device when used as a locking device for an opening/closing body, as described above, it is applied to a structure in which a box-shaped glove box is rotatably attached to the opening of an instrument panel (in this case, the instrument panel is the "fixed body” and the glove box is the “opening/closing body"), for example, but it may also be applied to a structure in which a lid is attached to the opening of an instrument panel so that it can be opened and closed (in this case, the instrument panel is the "fixed body” and the lid is the "opening/closing body"), and it can be widely used for various opening/closing bodies that open and close the opening of a fixed body.
  • the mounting hole 8 is formed in the opening/closing body 4, and the locking member 70 is arranged so as to be slidable on the opening/closing body 4, but the mounting hole may be formed in the fixed body, and the locking member may be arranged so as to be slidable on the fixed body side.
  • the locking portion 3 in this embodiment is hole-shaped, the locking portion may not be hole-shaped, but may be recessed, protruding, frame-shaped, etc. Furthermore, the locking portion may be provided in the opening and closing body, rather than in the opening of the fixed body.
  • the spring mounting body 20 may be directly rotated by rotating the operating member, thereby sliding the pair of locking members.
  • opening/closing body 4 in this embodiment is composed of an outer member 5 and an inner member 6, the opening/closing body may also be composed of a single plate material.
  • the base portion 21 of the spring mounting body 20 has a horizontally elongated, generally diamond shape, but the base portion may also have, for example, a circular, elliptical, oval, rectangular, etc. shape.
  • the first arm portion 55 of the spring 50 is adapted to engage with one of the engaging portions 28 provided on the base portion 21, but for example, a slit-shaped engaging groove may be formed at a predetermined location on the coil support portion of the spring mounting body, and the first arm portion of the torsion coil spring may be inserted and engaged into this engaging groove, as long as the first arm portion can be engaged with any part of the spring mounting body.
  • the coil support portion 35 is made up of a pair of wall portions 37, 37 arranged on the outside of the coil portion 53, but the coil support portion may also be arranged on the inside of the coil portion 53 (this will be described in other embodiments).
  • the coil support portion 35 is made up of a pair of wall portions 37, 37, but for example, the coil support portion may be cylindrical and positioned outside the coil portion 53.
  • a pair of walls 37, 37 are used that are arranged opposite each other across the rotation center C2 of the spring mounting body 20, but the walls may be, for example, three or more arranged at equal intervals in the circumferential direction outside the rotation center of the spring mounting body.
  • the elastic piece 41 is formed via a U-shaped slit consisting of a pair of first slits 39, 39 and a second slit 40, but the elastic piece may be formed to be flexible and deformable, for example, by only a pair of first slits (such as a slit extending from just before one axial end of the wall portion to just before the other axial end).
  • the claw portion 45 in this embodiment protrudes from the free end 43 of the elastic piece 41, and is configured so that when the spring 50 is in the maximum spring compression state, the claw portion 45 enters into the gap 59 between the first turn of wire 51 and the second turn of wire 51 from one end 53a of the coil portion 53 (the first gap 59 from one end 53a).
  • the claw portion may protrude, for example, from midway in the extension direction of the elastic piece. In this case, the claw portion enters into a specified gap in the coil portion before the torsion coil spring reaches the maximum spring compression state.
  • the claw portion 45 is configured to enter the first gap 59 from one end 53a of the coil portion 53, but the claw portion 45 may enter, for example, the second, third, fourth, etc. gap 59 from one end 53a of the coil portion 53, and the claw portion 45 may enter into any gap 59 in the coil portion 53.
  • slits 39 and 40 are formed in the wall portion 37 to provide an elastic piece 41, and a claw portion 45 is protruded from the elastic piece 41.
  • the coil support portion itself may be a thin or narrow standing piece that can be flexibly deformed, and the claw portion may be provided directly on the standing piece.
  • the coil support part 35 provided with the claw part 45 is subject to flexural deformation, but the coil support part may be a rigid body that does not flexurally deform.
  • the coil part side deforms appropriately, and the claw part enters into the gap.
  • the coil portion 53 is formed from a loosely wound portion wound with gaps 59 from one end 53a to the other end 53b in the axial direction (all loosely wound portions), but the coil portion may, for example, have a densely wound portion with no gaps between adjacent wire rods in the axial direction, or may be all densely wound portions (in this case, as explained in paragraph 0037, the claw portion fits between the wire rods in the densely wound portion of the coil portion).
  • the claw portion penetrates between the wire rods of the coil portion also includes the case where the claw portion penetrates between the wire rods in the densely wound portion of the coil portion by being pushed from the radially outward or radially inward of the coil portion, but in this case, it is necessary that the elastic restoring force of the elastic piece that has been flexed and deformed radially outward or radially inward is greater than the adhesion force between the closely arranged wire rods in the densely wound portion of the coil portion. This allows the claw portion to penetrate between the closely arranged wire rods in the densely wound portion of the coil portion.
  • the opening/closing body 4 is opened from the opening 2 of the fixed body 1, and the tip portions 72, 72 of the pair of locking members 70, 70 engage with the locking portions 3, 3 of the fixed body 1, thereby locking the opening/closing body 4 in the closed state (see FIG. 12).
  • the rotational force application device 10 provides the following effects:
  • the claw portion 45 is configured to enter the first gap 59 from one end 53a of the coil portion 53.
  • the maximum spring compression state is not reached, and there may be room to further compress the spring 50 into the spring mounting body 20.
  • the claw portion 45 may be configured to enter the second, third, fourth, etc. gap 59 from one end 53a of the coil portion 53.
  • the claws 45 climb over the wire 51 one by one, while the elastic piece 41 flexes and the coil portion 53 deforms, and the claws 45 enter the third, fourth, fifth, etc. gaps 59 of the coil portion 53 one by one, from one end 53a. Then, the spring 50 is pressed into the spring mounting body 20 by a predetermined amount, and the claws 45 enter the gaps 59 at predetermined positions, so that the spring 50 is attached to the spring mounting body 20 in a state where it is prevented from coming off.
  • the claw portion 45 fits between the wire of the coil portion 53, the claw portion 45 suppresses radial movement of the coil portion 53, and the coil support portion 35 is positioned outside the coil portion 53 and supports the coil portion 53, so that the coil portion 53 can be prevented from becoming eccentric or tilting with respect to the center of rotation C2 of the spring mounting body 20 (the axis C1 of the coil portion 53 can be prevented from becoming misaligned or tilting with respect to the center of rotation C2 of the spring mounting body 20).
  • the coil support portion 35 is shaped to extend along the axial direction of the coil portion 53, and the coil support portion 35 is formed with a resilient piece 41 that is capable of bending and deforming via a pair of first slits 39, 39 that extend in the axial direction, and a claw portion 45 is provided at a position of the resilient piece 41 that is offset toward the base portion 21 (see Figure 3).
  • the claw portion 45 is provided at a position offset toward the base portion 21 of the elastic piece 41 formed to be capable of flexibly deforming on the coil support portion 35. Therefore, when the spring 50 is pressed into the spring mounting body 20 along the spring pressing direction F in order to mount the spring 50 on the spring mounting body 20, the claw portion 45 is positioned at the tip side of the spring pressing direction F.
  • one end 53a of the coil portion 53 does not come into contact with the claw portion 45 during the spring pushing operation, so the spring 50 can be pushed in smoothly, further improving the ease of mounting the spring 50 to the spring mounting body 20.
  • the spring 50 can be attached to the spring mounting body 20 with one end 53a of the coil portion 53 close to the base portion 21, so the axial length (axial height) of the coil support portion 35 can be kept low, making the spring mounting body 20 compact in the axial direction.
  • the pair of first slits 39, 39 are connected to each other on the base portion 21 side by the second slit 40, and an elastic piece 41 is formed via the pair of first slits 39, 39 and the second slit 40, and the fixed end 42 of the elastic piece 41 is disposed on the side of the coil support portion 35 opposite the base portion 21, and the free end 43 is disposed on the base portion 21 side of the coil support portion 35, and the claw portion 45 is provided on the free end 43 side of the elastic piece 41 (see Figures 3 and 11).
  • the free end 43 of the elastic piece 41 is disposed on the base portion 21 side of the coil support portion 35, and the claw portion 45 is provided on the free end 43 side of the elastic piece 41. Therefore, when the spring 50 is pushed into the spring mounting body 20 along the spring pushing direction F in order to mount the spring 50 on the spring mounting body 20, the claw portion 45 can easily climb over the wire 51 of the coil portion 53 (here, the claw portion 45 can easily climb over the first turn of wire 51 from one end 53a of the coil portion 53), further improving the ease of mounting the spring 50 on the spring mounting body 20.
  • the claw portion 45 is provided on the free end portion 43 side of the elastic piece 41, which can ensure a large amount of flexural deformation. This makes it easier for the claw portion 45 to climb over the wire 51 when attaching the spring 50 to the spring attachment body 20, further improving the ease of attaching the spring 50 to the spring attachment body 20.
  • the claw portion 45 is configured to enter a gap 59 at a portion of the coil portion 53 that is less than half the total number of turns of the wire 51 that winds around the coil portion 53, from one axial end portion 53a of the coil portion 53 that is adjacent to the base portion 21.
  • the number of turns (number of turns) of the wire 51 of the coil portion 53 that the claw portion 45 must overcome can be reduced, thereby further improving the ease of mounting the spring 50 on the spring mounting body 20.
  • the coil support portion 35 has multiple wall portions 37 arranged on the outside of the coil portion 53, and claw portions 45 are provided on the inner surface of the wall portions 37 (see Figures 4 and 11).
  • the spring 50 when the spring 50 is pressed into the spring mounting body 20 along the spring pressing direction F in order to mount the spring 50 on the spring mounting body 20, the spring 50 is pressed in while being guided by the multiple wall portions 37 of the coil support portion 35 arranged on the outside of the coil portion 53.
  • the position of the coil portion 53 can be stabilized by suppressing misalignment of the axis C1 of the coil portion 53 relative to the rotation center C2 of the spring mounting body 20 and tilting of the coil portion 53, and the amount of the claw portion 45 that penetrates into the gap 59 of the coil portion 53 (penetration amount) can be reliably secured, making it possible to stably engage the claw portion 45 with the outer periphery of the wire 51, and more reliably holding the spring 50 against the spring mounting body 20 to prevent it from coming loose.
  • the rotational biasing device 10 is applied to a locking device for an opening/closing body, and further includes a locking portion 3 and a locking member 70 as described in paragraph 0020, the opening/closing body 4 serves as the mounting member, the locking member 70 is connected to the spring mounting body 20, and the rotational biasing force of the spring 50 biases the locking member 70 in a direction in which it engages with the locking portion 3.
  • the above aspect improves the ease of mounting the spring 50 to the spring mounting body 20 in the locking device.
  • the claws 45 fit between the wires of the coil portion 53, the claws 45 suppress radial movement of the coil portion 53, and the coil support portion 35 is positioned on the outside or inside of the coil portion 53 (here, positioned on the outside) to support the coil portion 53, so that the coil portion 53 can be prevented from becoming eccentric or tilting with respect to the center of rotation C2 of the spring mounting body 20.
  • tilting of the locking member 70 can be suppressed, and the locking member 70 can be stably slid.
  • FIG. 14 to 16 show another embodiment of the rotation biasing device according to the present invention. Note that parts that are substantially the same as those in the above embodiment are given the same reference numerals and the description thereof will be omitted.
  • the shape of the coil support part of the rotational biasing device 10A in this embodiment is different from that of the previous embodiment.
  • the spring mounting body 20A is provided with a coil support portion 35A that is inserted and positioned inside the coil portion 53.
  • the coil support 35A has a generally cylindrical wall 37A extending from the center of the extension direction on the front side of the base 21, coaxially with the rotation shaft 23.
  • the axis of the wall 37A coincides with the rotation center C2 of the spring mounting body 20A.
  • elastic pieces 41, 41 are provided at radially opposing locations on the approximately cylindrical wall portion 37A.
  • the elastic piece 41 in this embodiment is formed through a roughly U-shaped slit consisting of a pair of first slits 39, 39 and a second slit 40, as in the previous embodiment.
  • a claw portion 45 protrudes from the outside (outer surface) of the free end portion 43 of the elastic piece 41.
  • a plate-shaped piece 38 is provided on the inside of the wall portion 37A, which is disposed perpendicular to the pair of elastic pieces 41, 41 and passes through the axis of the wall portion 37A (the rotation center C2 of the spring mounting body 20A).
  • This plate-shaped piece 38 connects the radially opposing parts of the inner circumference of the wall portion 37A, thereby improving the rigidity of the wall portion 37A.
  • the wall portion 37A constituting the coil support portion 35A penetrates from one end portion 53a side of the coil portion 53, and when the maximum spring pressing state is reached, the claw portion 45 penetrates into the gap 59 of the coil portion 53, and the spring 50 is mounted on the spring mounting body 20A in a retaining state that prevents it from coming loose (see FIG. 16).
  • the workability of mounting the spring 50 on the spring mounting body 20A can be improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

L'invention concerne un dispositif de sollicitation en rotation qui permet d'améliorer la facilité de montage d'un ressort hélicoïdal de torsion sur un support de ressort. Ce dispositif de sollicitation en rotation (10) comporte un support de ressort (20) et un ressort hélicoïdal de torsion (50) monté sur le support de ressort (20). Le ressort hélicoïdal de torsion (50) comprend une section de bobine (53) obtenue par enroulement d'un fil (51), une première section de bras (55) s'étendant à partir de la section de bobine (53) et verrouillée au support de ressort (20), et une seconde section de bras (57) s'étendant à partir de la section de bobine (53) et verrouillée à un élément de fixation. Le support de ressort (20) comprend une section de base (21), une section de support de bobine (35) disposée sur l'extérieur de la section de bobine (53) et servant à supporter la section de bobine (53), et une griffe (45) qui entre dans un intervalle dans le fil de la section de bobine (53) et maintient le ressort hélicoïdal de torsion (50) sur le support de ressort (20) de façon à ne pas se détacher de celui-ci.
PCT/JP2023/038760 2022-11-04 2023-10-26 Dispositif de sollicitation en rotation WO2024095894A1 (fr)

Applications Claiming Priority (2)

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JP2022176992 2022-11-04
JP2022-176992 2022-11-04

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017090545A1 (fr) * 2015-11-27 2017-06-01 株式会社パイオラックス Dispositif de verrouillage pour corps d'ouverture/fermeture
WO2020080342A1 (fr) * 2018-10-18 2020-04-23 株式会社パイオラックス Dispositif de verrou pour corps d'ouverture/de fermeture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017090545A1 (fr) * 2015-11-27 2017-06-01 株式会社パイオラックス Dispositif de verrouillage pour corps d'ouverture/fermeture
WO2020080342A1 (fr) * 2018-10-18 2020-04-23 株式会社パイオラックス Dispositif de verrou pour corps d'ouverture/de fermeture

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