JP2011153685A - Hinge structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge structure capable of facilitating assembling of parts with a small number of parts, being inexpensively manufactured and securing stability of a rotating operation. <P>SOLUTION: A collar 3 is constituted by integrally molding a main body cylinder part 3a, a first projecting wall 3b and a second projecting wall 3c provided to project in a radially outward direction from an outer peripheral surface of the main body cylinder part 3a by a resin material. In the main body cylinder part 3a, two cut parts 3d from one end side of the main body cylinder part 3a to an intermediate part are formed so that the one end side of the main body cylinder part 3a may be elastically reduced in diameter. After a first member 1, a second member 2 and a wave washer 5 are held by the first projecting wall 3b and the second projecting wall 3c in a state of energizing force stored in the wave washer 5, a shaft 4 is inserted into the main body cylinder part 3a to regulate deformation of the main body cylinder part 3a. The collar 3 is integrally molded with resin and dimensional accuracy in space is excellent, and thereby sliding resistance force generated between the first member 1 and the second member 2 becomes stable. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a hinge structure including a second member that rotates relative to a first member, and more particularly to a hinge structure that can ensure the stability of the rotation operation of the second member.

  Various types of hinge structures including a second member that rotates with respect to the first member are conventionally known. For example, a console box for a vehicle has a hinge structure in which a second member attached to a lid is rotatably connected to a first member attached to a case body. Some of the hinge structures of this type include a rotation adjustment mechanism that can control the rotation speed and rotation angle of the second member (see, for example, Patent Document 1).

  6 and 7 show a conventional hinge structure having a rotation adjustment mechanism similar to the hinge structure described in Patent Document 1. FIG. The hinge structure 50 includes a first member 51, a rotation shaft portion 53 attached to the first member 51, a start point position and an end point position around the rotation shaft portion 53 attached to the rotation shaft portion 53. A second member 52 that rotates between them, a torsion coil spring 54 that urges the second member 52 toward the end point position, and an axial direction of the rotation shaft portion 53 that is inserted through the rotation shaft portion 53. And a rotation adjusting mechanism 55 including three metal washers.

  The rotation adjusting mechanism 55 includes an input washer 55a fixed to the second member 52 and rotated together with the second member 52, a brake washer 55b adjacent to the input washer 55a and fixed to the rotation shaft portion 53, and A wave washer 55c is provided adjacent to the brake washer 55b to urge the brake washer 55b in the direction of the input washer 55a.

  The input washer 55a is formed with an input contact surface 550a protruding in the direction of the brake washer 55b. The brake washer 55b is formed with a brake contact surface 550b that protrudes in the direction of the input washer 55a. Then, as the second member 52 rotates, the magnitude of the sliding resistance between the input washer 55a and the brake washer 55b changes, thereby controlling the rotation speed of the second member and rotating the second member 52. The angle can be temporarily fixed. When the second member 52 rotates to the end point position, the stopper rubber 56 attached to the second member 52 contacts the first member 51, and the rotation of the second member 52 stops.

  The rotating shaft portion 53 includes a shaft 53a, a small-diameter shaft 53c serving as a rotating shaft extending from the end portion 53b of the shaft 53a by being inserted into the shaft 53a from one end side of the shaft 53a, and a small-diameter shaft on the shaft 53a. And a stopper pin 53d for fixing 53c. After the second member 52, the input washer 55a, the brake washer 55b, the wave washer 55c, the flat washer 55d, the first member 51, and the flat washer 55e are externally fitted in this order on the small diameter shaft 53c, An E-ring 53e is fitted in the mounting groove at the end of the small diameter shaft 53c as a stopper.

Japanese Patent Application No. 2009-019278

  The hinge structure 50 shown in FIGS. 6 and 7 includes five washers in addition to the first member 51 and the second member 52 in order to ensure the stability of the rotational operation and the durability such as wear resistance. 55a-55e consists of the structure where the small diameter shaft 53c was externally fitted. For this reason, there are problems that the number of parts is large and the structure is complicated, so that it takes time to manufacture and assemble the parts, and it is difficult to manufacture at low cost.

  In addition, in order to stabilize the rotation operation of the second member 52, it is necessary to stabilize the sliding resistance generated between the input washer 55a and the brake washer 55b to a predetermined constant value. As shown in FIG. 7, it is necessary to ensure the dimensional accuracy of the distance D between the end 53b of the shaft 53a and the E ring 53e. However, as described above, the rotation shaft portion 53 of the hinge structure 50 has a structure in which after the small diameter shaft 53c is inserted into the shaft 53a, the shaft 53a and the small diameter shaft 53c are fixed by the stopper pin 53d. It is difficult to sufficiently secure the dimensional accuracy of the interval D due to dimensional errors at the time of manufacturing the parts and backlash when the parts are assembled. For this reason, stability of the sliding resistance force generated between the input washer 55a and the brake washer 55b cannot be ensured, and thus stability of the rotation operation of the second member 52 may not be ensured.

  If the rotational movement of the second member 52 is not stable, the second member 52 cannot be lifted up to the end position by the urging force of the torsion coil spring 54, or the second member 52 is urged by the urging force of the torsion coil spring 54. In some cases, the second member 52 bounces from the end point position because the second member 52 bounces vigorously up to the end point position. As a countermeasure against the bounce in such a case, for example, a shock absorbing damper (not shown) may be added to the contact portion between the stopper rubber 56 of the hinge structure 50 and the first member 51. This was one of the factors that increased manufacturing costs.

  The hinge structure 50 does not include the torsion coil spring 54 that urges the second member 52 toward the end point position, and even when the user manually rotates the second member 52, the user's feeling of use is provided. In order to improve the stability, it is necessary to ensure the stability of the rotation operation of the second member 52.

  The present invention has been made in view of the above circumstances, and in a hinge structure including a second member that rotates with respect to the first member, the number of components is small, and the assembly of the components is easy, so that the manufacturing is inexpensive. An object of the present invention is to provide a hinge structure that can be secured and that can ensure the stability of the rotational movement of the second member.

  Hereinafter, each means suitable for solving the above-described problems will be described with additional effects and the like as necessary.

(1) The hinge structure according to the present invention includes a first member having a holding hole and a brake contact surface, a pivot support hole and an input contact surface, and a start point position and an end position between the pivot support hole as a rotation center. A second member that pivots, a cylindrical collar that is inserted into the holding hole and the pivot hole and serves as a pivot shaft of the second member, a shaft that is inserted into the collar, and a collar An axial direction in which the second member is biased in the rotational axis direction with respect to the first member so that a sliding resistance force is always generated between the brake contact surface and the input contact surface. An urging member,
The collar includes a cylindrical main body cylinder portion, a first protruding wall projecting radially outward from an outer peripheral surface of the main body cylinder portion on one end side in the rotation axis direction of the main body cylinder portion, and the main body cylinder portion A second projecting wall projecting radially outward from the outer peripheral surface of the main body cylinder portion at a position spaced from the one end side to the other end side in the rotation axis direction of the main body is integrally formed of a resin material. The main body cylinder portion is separated from the one end side of the main body cylinder portion by a predetermined distance so that the one end side of the main body cylinder portion can be elastically reduced in diameter. At least two notches reaching the above position are formed, and the first projecting wall and the second projecting wall cause the first projecting wall to have the first projecting wall with the biasing force accumulated in the axial biasing member. The member, the second member, and the axial biasing member are sandwiched.

  According to such a configuration of the present invention, the main body cylinder portion in which one end side is elastically reduced in diameter is inserted into the holding hole of the first member, the pivotal support hole of the second member, and the axial biasing member. After that, the hinge structure is completed by inserting a shaft into the main body cylinder portion in order to restrict deformation of the main body cylinder portion. Therefore, compared with the conventional hinge structure, the hinge structure which can ensure the stability of the rotation operation of the second member can be obtained with a small number of parts and easy assembly.

  Further, for example, in the case of having a pair of hinge structures on both sides of the shaft as in the conventional hinge structure 50 shown in FIG. 6, since the small parts are sequentially assembled on both sides of the long shaft, There were many restrictions on the procedure, and it took time to assemble. However, according to the configuration of the present invention, even when a pair of hinge structures are provided on both sides of the shaft, after temporarily fixing each one of the hinge structures with a collar, the shaft is passed through the pair of collars. Since the hinge structure is completed, there are few restrictions on the worker's assembly posture and assembly procedure, and assembly is easy.

  Further, since the collar is an integrally molded product of the resin material, it is possible to ensure the dimensional accuracy of the interval between the first protruding wall and the second protruding wall. Accordingly, the first member, the second member, and the axial biasing member are sandwiched between the first projecting wall and the second projecting wall, so that the brake contact surface of the first member and the input of the second member The stability of the sliding resistance generated between the contact surface and the contact surface can be ensured. Therefore, the stability of the rotation operation of the second member can be ensured.

  By ensuring the stability of the rotation operation of the second member, for example, when the second member is configured to rotate by an urging means such as a spring, the rotation speed of the second member is smooth without variation. Because it rotates, the appearance of the movement is good. Further, when the user manually rotates the second member, the user can rotate the second member with a substantially constant force, so that a good feeling of use can be obtained.

(2) In the hinge structure of the present invention, preferably, the brake contact surface of the first member protrudes toward the second member side in the rotation axis direction with the first brake contact surface surrounding the holding hole. A second brake contact surface, wherein the input contact surface of the second member is a first input contact surface surrounding the pivot support hole, and a second protruding in the direction of the rotation axis and toward the first member. An input contact surface, wherein the second brake contact surface is formed as a brake taper surface whose protruding height gradually increases from the start point position toward the end point position, and / or the second input The contact surface is formed as an input tapered surface in which the protruding height gradually increases from the end point position toward the start point position,
The first input contact surface slides on the first brake contact surface while the second member rotates from the start point position to an intermediate position that is a predetermined position between the start point position and the end point position. The second input contact surface is in sliding contact with the second brake contact surface while the second member rotates from the intermediate position to the end point position.

  According to such a configuration of the present invention, when the second member rotates to the intermediate position, the contact between the first brake contact surface and the first input contact surface starts to be separated and the second brake contact surface and the second The input contact surface starts to contact. Then, as the second member rotates from the intermediate position toward the end point position, the second member gradually moves in the direction of the rotation axis from the first member while the second brake contact surface and the second input contact surface are in sliding contact. The urging force of the axial urging member gradually increases. As a result, the sliding resistance force generated between the brake contact surface of the first member and the input contact surface of the second member gradually increases as the rotation of the second member approaches the end point position.

  Therefore, for example, when the second member is configured to rotate by an urging means such as a spring, the rotation speed of the second member becomes slower as the rotation of the second member approaches the end point position. The collision between the second member and the restricting member that restricts the rotation range of the second member to the end point position is weak, and the second member is less likely to bounce from the end point position. Further, when the second member is manually rotated by the user, the force required for the user to rotate the second member increases as the rotation of the second member approaches the end point position. Therefore, the user can grasp that the rotation of the second member has approached the end point position by the touch transmitted to the user without gazing at the second member.

  (3) The hinge structure according to the present invention is preferably characterized in that it includes a rotation urging member that is fitted on the collar and urges the second member toward the end position.

  According to such a configuration of the present invention, the second member is automatically rotated from the start point position to the end point position by the urging force of the rotation urging member. In addition, since the rotation urging member is externally fitted to the collar, the rotation urging member is conventionally inserted in the center of the rotation urging member such as a torsion coil spring and the collar for connecting the first member and the second member. The color as a spacer can be combined with one color. Therefore, the number of parts is reduced and assembly is facilitated.

  According to the present invention, in the hinge structure including the second member that rotates with respect to the first member, the number of components is small and the assembly of the components is easy, so that it can be manufactured at low cost, The hinge structure which can ensure the stability of the rotation operation of the second member can be provided.

It is a disassembled perspective view of the hinge structure of this embodiment. It is sectional drawing which illustrates operation | movement of the hinge structure of this embodiment typically, Comprising: (a) is a state which has a lid in a closed position (2nd member is a starting position), (b) is a lid to a maximum opening degree. The state which exists in the rotated open position (2nd member is an end point position) is shown. It is a perspective view of the hinge structure of this embodiment. It is sectional drawing cut | disconnected by the AA line in FIG. It is sectional drawing cut | disconnected by the BB line in FIG. 4, Comprising: (a) is the state in which a 2nd member exists in a starting point position, (b) is the state which the 2nd member rotated to the intermediate position, (c) is The state which the 2nd member rotated to the end point position is shown. It is a perspective view of the conventional hinge structure. It is sectional drawing cut | disconnected by the AA in FIG.

  Hereinafter, an embodiment of the hinge structure of the present invention will be described in detail with reference to the drawings.

(1) Configuration of Hinge Structure This embodiment is an embodiment in which the hinge structure of the present invention is applied as a part of a console box disposed on a center console between a driver seat and a passenger seat of a vehicle. FIG. 1 shows an exploded perspective view of the hinge structure of the present embodiment. FIG. 2 is a cross-sectional view schematically illustrating the operation of the hinge structure of this embodiment. FIG. 3 shows a perspective view of the hinge structure of the present embodiment. FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a cross-sectional view taken along line BB in FIG.

  In the following description, the terms “up”, “down”, “left”, “right”, “front”, and “rear” refer to “upper, lower, left, right, front, and rear” in FIG. The left side corresponds to the left seat side of the vehicle, the right side corresponds to the right seat side of the vehicle, the front side corresponds to the forward direction of the vehicle, and the rear side corresponds to the backward direction of the vehicle.

  As shown in FIG. 1, the hinge structure of this embodiment includes a first member 1, a second member 2 that rotates relative to the first member 1, and a cylindrical shape that serves as a rotation axis of the second member 2. A collar 3, a shaft 4 inserted into the collar 3, a wave washer 5 (an axial biasing member) that biases the second member 2 in the rotational axis direction with respect to the first member 1, and a second member And a torsion coil spring 6 (rotation urging member) for urging in the rotation direction.

  As shown in FIG. 2, the console box 10 includes a case body 11 that has a box shape, and a lid 12 that opens and closes an opening at the top of the case body 11. The first member 1 is attached to the upper rear side of the case body 11, and the second member 2 is attached to the lower rear side of the lid 12. 2A shows a state where the lid 12 is in a closed position (the second member 2 is a starting point position), and FIG. 2B shows an open position where the lid 12 is rotated to the maximum opening degree (the second member 2 is an end point position). ).

  As shown in FIGS. 1 to 3, the lid 12 (second member 2) is rotatably connected to the case body 11 (first member 1) by a pair of left and right hinge structures. The hinge structure formed on the right side of the pair of left and right hinge structures is the hinge structure of the present invention, and this hinge structure is provided with a rotation adjusting mechanism capable of controlling the rotation speed and rotation angle of the second member 2. ing. On the other hand, the hinge structure formed on the left side is not provided with a rotation adjusting mechanism. Of the members (portions) disposed in the left and right pairs having substantially the same shape, “′” is attached to the numbers of the members (portions) disposed on the left side.

  As shown in FIG. 1, the first member 1 has a pair of left and right connecting walls 1a, 1a 'having a vertical surface in the vertical direction and extending in the vertical direction, and a substantially vertical surface in the vertical direction. A plate-like mounting wall 1b that connects the front ends of both the connecting walls 1a and 1a 'is provided. The first member 1 is formed by pressing and bending after cutting a metal plate (soft steel: SPC), and has a substantially U-shaped cross-sectional shape when viewed from above.

  Holding holes 1d and 1d 'penetrating left and right are formed above the respective connecting walls 1a and 1a'. Main cylinder portions 3a and 3a 'of collars 3 and 3', which will be described later, are inserted into the holding holes 1d and 1d 'in a state in which they cannot rotate. A ring-shaped plane surrounding the holding hole 1d in the left surface of the right connecting wall 1a is referred to as a first brake contact surface 1e. Further, a second brake contact surface 1f having a surface protruding toward the left side is formed above the front side of the connecting wall 1a by pressing.

  The second brake contact surface 1f is a surface protruding to the left side of the first brake contact surface 1e formed in a part of the circumferential direction on the outer peripheral side of the first brake contact surface 1e. Further, the second brake contact surface 1f is formed as a brake taper surface (inclined surface) whose protruding height gradually increases from the start point position toward the end point position. As shown in FIGS. 1 and 5, the second brake contact surface 1f gradually decreases in height from the upper side to the lower side, and the lowermost protrusion height of the second brake contact surface 1f is: The protruding height is the same as that of the first brake contact surface 1e.

  The mounting wall 1b is a part that is screwed to the upper rear side of the case body 11. A plate-like spring fixing wall 1c extending rearward substantially horizontally is formed at a substantially central portion of the mounting wall 1b. The spring fixing wall 1c is formed by forming two cuts upward from the lower end of the metal plate forming the mounting wall 1b and then bending the metal plate between the two cuts. Yes. A connecting portion 6b that connects torsion coil springs 6 and 6a described later is attached to the spring fixing wall 1c.

  As shown in FIG. 1, the second member 2 includes a pair of left and right connecting walls 2a, 2a ′ having a plate-like left and right shape and having a vertical surface in the vertical direction and extending obliquely in the vertical direction from the upper front to the lower rear. A plate-like bottom wall 2b having a substantially horizontal surface and connecting the lower ends of both connecting walls 2a and 2a 'and a box-shaped mounting portion extending in the left-right direction connecting the upper ends of both connecting walls 2a and 2a' 2c. In addition, the front end of the space surrounded by both the connecting walls 2a, 2a ', the bottom wall 2b, and the mounting portion 2c is closed with a wall, and the rigidity of the second member 2 is enhanced. The second member 2 is an integrally molded product made of a resin material (glass-filled nylon: PA-GF40), and is formed by injection molding.

  Under the connecting walls 2a and 2a ', pivot holes 2d and 2d' penetrating left and right are formed. In the pivot support holes 2d and 2d ', main body cylinder portions 3a and 3a' of collars 3 and 3 'to be described later are inserted in a rotatable state. As shown in FIGS. 4 and 5, a first input contact surface 2e having a ring-shaped flat surface surrounding the pivot support hole 2d is provided on the right surface of the right connection wall 2a so as to protrude rightward. . A second input contact surface 2f having a surface protruding toward the right side is formed below the connecting wall 2a. A large number of honeycomb-shaped recesses are formed on the right side surface of the right connecting wall 2a and the left side surface of the left connecting wall 2a ′, and the amount of resin in each of the connecting walls 2a and 2a ′ is reduced. Is planned.

  The second input contact surface 2f is a surface having a slightly lower protrusion height than the first input contact surface 2e formed in a part of the outer circumferential side of the first input contact surface 2e. Further, as shown in FIG. 5, the second input contact surface 2f is formed as an input tapered surface (inclined surface) whose protruding height gradually increases from the end point position toward the start point position. As shown in FIGS. 4 and 5A, the second brake contact surface 2f gradually increases in height from the front toward the rear in the state where the second member 2 is at the starting position.

  As shown in FIG. 3, at the rear end of the bottom wall 2b, a pair of left and right stoppers 2g and 2g 'that protrude downward from the lower surface of the bottom wall 2b and extend in the left-right direction are formed. As shown in FIGS. 2B and 5C, the lower ends of both stopper portions 2g and 2g ′ are attached to the mounting wall 1b of the first member 1 when the second member 2 is rotated to the end point position. By further contact, further rotation of the second member 2 is restricted.

  The attachment portion 2 c is a portion that is screwed to the lower side on the rear side of the lid 12. The attachment portion 2c has a box shape with an open top, and the rigidity of the attachment portion 2c is increased by forming ribs extending in the front-rear direction and the left-right direction inside the attachment portion 2c.

  Of the pair of left and right hinge structures shown in FIG. 1, the rotation axis of the right hinge structure (the hinge structure of the present invention) is the collar 3, and the rotation axis of the left hinge structure is the collar 3 '. Since the structures of the collars 3 and 3 'are the same, only the structure of the collar 3 arranged on the right side will be described.

  As shown in FIGS. 1 and 4, the collar 3 protrudes radially outward from the outer peripheral surface of the main body cylinder portion 3 a on the cylindrical main body cylinder portion 3 a and on the right end side (one end side) of the main body cylinder portion 3 a. The first projecting wall 3b and an intermediate portion spaced from the right end side in the rotation axis direction of the main body cylinder portion 3a toward the left end side (the other end side) from the outer peripheral surface of the main body cylinder portion 3a radially outward And a second protruding wall 3b. The collar 3 is an integrally molded product made of a resin material (polyoxymethylene: POM) and is formed by injection molding.

  In the main body cylinder portion 3a, two cut portions 3d extending from the right end side of the main body cylinder portion 3a to an intermediate portion in the rotation axis direction of the main body cylinder portion 3a are formed symmetrically. The right side of the intermediate portion where the second projecting wall 3b of the main body cylinder portion 3a is formed is divided by the two cut portions 3d, and the main body cylinder portion 3a is formed of a resin material, whereby the main body cylinder The right end side of the portion 3a can be elastically reduced in diameter.

  The first projecting wall 3b is an arc-shaped projecting portion provided along the outer periphery of the main body cylinder portion 3a on the right end side of each main body cylinder portion 3a divided by the notch portion 3d. As shown in FIG. 4, the cross-sectional shape of the first protruding wall 3b in the direction of the rotational axis has a trapezoidal shape. The left surface of the first protruding wall 3b is a vertical surface, and the right surface is an inclined surface. When the end face (the upper side of the trapezoidal cross section) in the radially outward direction of the first protrusion 3b is pushed toward the radially inward direction, the main body cylinder part 3a divided by the cut part 3d bends. As a result, the first protrusion 3 b is pushed to a position that fits within the diameter of the holding hole 1 d formed in the first member 1.

  The 2nd protrusion wall 3c is a ring-shaped projection part provided along the outer periphery of the intermediate part of the rotation axis direction of the main body cylinder part 3a. As shown in FIG. 4, the cross-sectional shape of the second protruding wall 3 c in the rotation axis direction is rectangular. Both the left and right surfaces of the second protruding wall 3c are vertical surfaces. A step 3e is formed on the right side of the second projecting wall 3c. The step 3e is integral with the second projecting wall 3c and slightly projects radially outward from the outer peripheral surface of the main body cylindrical portion 3a. At the position where the step portion 3e is formed, the cross-sectional shape obtained by cutting the collar 3 perpendicularly to the rotation axis is non-circular.

  As shown in FIG. 4, the distance between the left side surface of the first protruding wall 3b and the right side surface of the second protruding wall 3c is a constant distance D in the circumferential direction. Since the collar 3 is an integrally molded product made of a resin material, the dimensional accuracy of the distance D is very high.

  The shaft 4 is a pipe having a circular cross section made of carbon tool steel (JIS-SK105 (old SK3)). The outer diameter of the shaft 4 is 6 mm, and the outer diameter of the shaft 4 is substantially equal to the inner diameter of the main body cylinder portion 3 a of the collar 3.

  The wave washer 5 has a substantially disk shape made of carbon tool steel, a special steel strip (JIS-SK85M (formerly SK5M)). The wave washer 5 is formed by punching and is a flat washer bent into a waveform. A non-circular mounting hole 5a having substantially the same shape as the outer peripheral shape of the step 3e of the collar 3 is formed at the center of the wave washer 5, and by fitting the wave washer 5 to the step 3e, The rotation of the wave washer 5 is fixed with respect to the collar 3.

  As shown in FIG. 1, the torsion coil spring 6 attached to the right hinge structure and the torsion coil spring 6 'attached to the left hinge structure are formed of a single steel wire. As shown in FIG. 3, the end 6 a of the right torsion coil spring 6 and the end 6 a ′ of the left torsion coil spring 6 ′ are in contact with the upper surface of the bottom wall 2 b of the second member 2. Further, the connecting portion 6 b that connects the torsion coil springs 6 and 6 a is fixed to the rear of the spring fixing wall 1 c formed on the first member 1.

  The connecting portion 6b has an appearance that is bent in a U shape when viewed from the rear, and an appearance that is bent in a letter shape when viewed from the left side. By pulling the U-shaped bottom portion of the connecting portion 6b downward, a square-shaped bending angle is opened, and the distance between the torsion coil spring 6 and the U-shaped bottom portion of the connecting portion 6b is increased.

  Both end portions 6a and 6a ′ of the torsion coil springs 6 and 6 ′ are always in contact with the upper surface of the bottom wall 2b during the rotation of the second member 2 and rotate the second member 2 from the end position to the start position. Thus, the rotational biasing force is accumulated in the torsion coil springs 6 and 6 ′.

(2) Hinge structure assembly procedure The hinge structure is assembled as follows. Since the assembly procedure for the pair of left and right hinge structures is substantially the same, only the assembly procedure for the right hinge structure will be described.

  First, the first protrusion 3b of the collar 3 is pushed inward in the radially inward direction to reduce the diameter of the right end side of the main body cylinder portion 3a, and then the main body cylinder portion 3a is moved from the right end side of the main body cylinder portion 3a. The wave washer 5 is inserted into the mounting hole 5a, the pivotal support hole 2d of the second member 2, and the holding hole 1d of the first member 1 in this order. When the first protruding wall 3b formed in the main body cylinder portion 3a passes through the holding hole 1d of the first member 1, the diameter of the right end side of the main body cylinder portion 3a is elastically restored. The collar 3 is locked to the connecting wall 1a of the first member 1 by the outer diameter of the first protruding wall 3b being larger than the diameter of the holding hole 1d.

  In this state, the wave washer 5 is crushed in the rotational axis direction and the urging force is accumulated, and the wave washer 5 and the second member 2 are formed by the first projecting wall 3b and the second projecting wall 3c. The connecting wall 2a and the connecting wall 1a of the first member 1 are sandwiched. Further, the wave washer 5 and the connecting wall 1 a of the first member 1 are fixed to the collar 3, and only the connecting wall 2 a of the second member 2 is rotatable with respect to the collar 3. Yes.

  Thereafter, the torsion coil spring 6 is externally fitted to the main body cylinder portion 3a from the left end side of the main body cylinder portion 3a of the collar 3, and then the shaft 4 is inserted into the main body cylinder portion 3a. By inserting the shaft 4 into the main body cylinder portion 3a, deformation of the main body cylinder portion 3a in the radially inward direction is restricted. Finally, the assembly of the hinge structure is completed by hooking the connecting portion 6b behind the spring fixing wall 1c of the first member 1 while pulling the connecting portion 6b of the torsion coil spring 6 downward.

(3) Operation of Hinge Structure Hereinafter, the lid 12 is moved to the open position (the second member 2 is the end point position) from the state shown in FIG. 2A where the lid 12 is in the closed position (the second member 2 is the start position). The operation of the hinge structure when the lid 12 rotates to the state shown in FIG. 2B will be described with reference to FIGS.

  When the lock means (not shown) between the case body 11 and the lid 12 is released by operating the lock release means (not shown) provided to the lid 12, the torque is accumulated in the torsion coil springs 6 and 6 '. The lid 12 starts to rotate upward by the rotational biasing force. Thereby, the second member 2 passes through the intermediate position which is a predetermined position between the start point position and the end point position shown in FIG. 5B from the start point position shown in FIG. ). Then, in a state where the second member 2 is rotated to the end point position, the lower ends of both stopper portions 2g, 2g ′ of the second member 2 abut on the mounting wall 1b of the first member 1, whereby the second member 2 Further rotation of this is restricted.

  As shown in FIGS. 4 and 5A, when the second member 2 is at the starting position, the first brake contact surface 1e of the first member 1 and the first input contact surface 2e of the second member 2 are It is in pressure contact. While the second member 2 rotates from the start position to the intermediate position, the first brake contact surface 1e and the first input contact surface 2e are in sliding contact with each other. A sliding resistance is generated between the surface 2e. The rotational speed of the second member 2 is controlled by this sliding resistance force.

  As shown in FIG. 5B, when the second member 2 rotates to the intermediate position, the first brake contact surface 1e and the first input contact surface 2e start to come apart and the second brake contact The surface 1f and the second input contact surface 2f start to contact each other.

  Thereafter, while the second member 2 rotates from the intermediate position to the end point position, the second brake contact surface 1f and the second input contact surface 2f are in sliding contact. The second brake contact surface 1f is formed as a brake taper surface whose protruding height gradually increases from the start point position toward the end point position, and the second input contact surface 2f gradually increases from the end point position toward the start point position. By being formed as an input taper surface whose protruding height is increased, the connecting wall 2a of the second member 2 moves from the connecting wall 1a of the first member 1 in the direction of the rotation axis as the rotation of the second member 2 proceeds. Gradually leave.

  Thereby, the wave washer 5 is gradually crushed in the rotation axis direction, and the urging force of the wave washer 5 is gradually increased. Therefore, when the second member 2 rotates from the intermediate position to the end position, the sliding resistance force generated between the second brake contact surface 1f and the second input contact surface 2f gradually increases, The sliding resistance force becomes maximum when the two members 2 are rotated to the end point position.

  When the second member 2 rotates from the start point position to the end point position, the brake contact surface (the first brake contact surface 1e and the second brake contact surface 1f) of the first member 1 and the input contact surface of the second member 2 A sliding resistance force is always generated between the first input contact surface 2e and the second input contact surface 2f. Then, as the second member 2 approaches the end point position, the rotational resistance of the second member 2 gradually attenuates due to the gradually increasing sliding resistance.

(4) Effect of Hinge Structure According to such a configuration of the present embodiment, the main body cylinder portion 3a in which the right end side is elastically reduced in diameter is connected to the holding hole 1d of the first member 1 and the second member 2. After insertion into the pivot hole 2d and the wave washer 5, the hinge structure is completed by inserting the shaft 4 into the main body cylinder portion 3a in order to restrict deformation of the main body cylinder portion 3a. Therefore, compared with the conventional hinge structure, the hinge structure which can ensure the stability of the rotation operation of the 2nd member 2 can be obtained by a small number of parts and easy assembly | attachment.

  Also, after temporarily fixing one of the pair of left and right hinge structures with the collars 3 or 3 ', respectively, the shaft 4 is passed through both the collars 3 and 3', thereby completing the pair of left and right hinge structures. There are few restrictions on the assembly posture and assembly procedure, and assembly is easy.

  Further, since the collar 3 is an integrally molded product of a resin material, it is possible to ensure the dimensional accuracy of the distance D between the first protruding wall 3b and the second protruding wall 3c. Accordingly, the first member 1, the second member 2, and the wave washer 5 are sandwiched between the first projecting wall 3 b and the second projecting wall 3 c, so that the brake contact surface of the first member 1 (first Stability of the sliding resistance force generated between the brake contact surface 1e and the second brake contact surface 1f) and the input contact surface (the first input contact surface 2e and the second input contact surface 2f) of the second member 2 Can be secured. Therefore, the stability of the rotation operation of the second member 2 can be ensured. Further, since the stability of the rotation operation of the second member 2 can be ensured, the rotation speed of the second member 2 is smoothly rotated without variation, so that the appearance of the movement is good.

  Further, as the rotation of the second member 2 approaches the end point position, the sliding resistance force generated between the second brake contact surface 1f and the second input contact surface 2f gradually increases, Since the rotation speed is slow, the collision between the stopper portions 2g, 2g ′ of the second member 2 and the mounting wall 1b of the first member 1 is weak, and the second member 2 is less likely to bounce from the end point position. Thereby, it is not necessary to add a shock absorbing damper or the like to the contact portion between the lower ends of the stopper portions 2g and 2g 'of the second member 2 and the mounting wall 1b of the first member 1.

  Further, since the torsion coil spring 6 is externally fitted to the collar 3, the collar 3 for connecting the first member 1 and the second member 2 and a collar as a spacer conventionally inserted in the center of the torsion coil spring. Can be combined with one color 3. Therefore, the number of parts is reduced and assembly is facilitated.

(5) Other Embodiments The hinge structure of the present invention is not limited to the above-described embodiment, but has been modified or improved by those skilled in the art without departing from the gist of the present invention. It can be implemented in various forms.

  For example, in the present embodiment, the first member 1 is made of metal and the second member 2 is made of resin, but the materials of the first member and the second member are not limited to this.

  Further, the wave washer 5 and the connecting wall 1a of the first member 1 are fixed so as not to be rotatable with respect to the collar 3, but the wave washer and the first member may be rotatable with respect to the collar. .

  Further, although the wave washer 5 is used as the axial biasing member that biases the second member 2 in the rotational axis direction with respect to the first member 1, a compression coil spring may be used instead of the wave washer 5. .

  Further, although the two cut portions 3d are formed in the collar 3, three or more cut portions may be formed.

  Further, the second member 2 may be manually rotated by the user without using the torsion coil springs 6 and 6 ′ that urge the second member in the rotation direction. In this case, since the stability of the rotation operation of the second member 2 is ensured, the user can rotate the second member 2 with a substantially constant force. It is done. Further, as the rotation of the second member 2 approaches the end point position, the sliding resistance force generated between the second brake contact surface 1f and the second input contact surface 2f gradually increases, and the user moves the second member 2 over. Since the force required for the rotation is increased, the user can grasp that the rotation of the second member 2 has approached the end point position without touching the second member 2 by the touch transmitted to the user. it can.

  Moreover, while the 2nd member 2 rotates from a starting point position to an intermediate position, the 1st brake contact surface 1e and the 1st input contact surface 2e are slidably contacted, and the 2nd member 2 is toward an end point position from an intermediate position. While rotating, as long as the second brake contact surface 1f and the second input contact surface 2f are in sliding contact with each other and the second member 2 is gradually separated from the first member 1 in the rotation axis direction, the configuration is satisfied. The protruding heights of the first brake contact surface 1e, the second brake contact surface 1f, the second input contact surface 2e, and the second input contact surface 2f can be freely set.

  Further, the brake contact surface of the first member 1 and the input contact surface of the second member 2 do not include the second brake contact surface 1f and the second input contact surface 2f, but the first brake contact surface 1e and the first input contact surface. It is good also as a structure which consists only of the surface 2e. In this case, a constant sliding resistance force is always generated between the first brake contact surface 1e and the first input contact surface 2e while the second member 2 rotates from the start position to the end position. Thus, it is possible to ensure the stability of the rotation operation of the second member.

  Furthermore, in this embodiment, although embodiment which applied the hinge structure of this invention as a part of console box was shown, the hinge structure of this invention is provided with the 2nd member rotated with respect to a 1st member. If it is a hinge structure, it can be embodied in various embodiments.

DESCRIPTION OF SYMBOLS 1 ... 1st member 1d ... Holding hole 1e ... 1st brake contact surface 1f ... 2nd brake contact surface 2 ... 2nd member 2d ... Pivot support hole 2e ... 1st input contact surface 2f ... 2nd input contact surface 3 ... Color 3a ... Main body cylinder part 3b ... 1st protrusion wall 3c ... 2nd protrusion wall 3d ... Notch part 4 ... Shaft 5 ... Wave washer (axial direction biasing member)
6 ... Torsion coil spring (rotating biasing member)

Claims (3)

A first member having a holding hole and a brake contact surface; a second member having a pivot support hole and an input contact surface and rotating between a start point position and an end position with the pivot support hole as a rotation center; A cylindrical collar that is inserted into the holding hole and the pivot hole and serves as a rotation shaft of the second member, a shaft that is inserted into the collar, an outer fit to the collar, and the brake contact surface An axial biasing member that biases the second member in the direction of the rotational axis with respect to the first member so that a sliding resistance force is always generated between the input contact surface and the input contact surface,
The collar includes a cylindrical main body cylinder portion, a first protruding wall projecting radially outward from an outer peripheral surface of the main body cylinder portion on one end side in the rotation axis direction of the main body cylinder portion, and the main body cylinder portion A second projecting wall projecting radially outward from the outer peripheral surface of the main body cylinder portion at a position spaced from the one end side to the other end side in the rotation axis direction of the main body is integrally formed of a resin material. The main body cylinder portion is separated from the one end side of the main body cylinder portion by a predetermined distance so that the one end side of the main body cylinder portion can be elastically reduced in diameter. There are at least two cuts leading to the position,
With the urging force accumulated in the axial urging member, the first projecting wall and the second projecting wall hold the first member, the second member, and the axial urging member. A hinge structure characterized by The brake contact surface of the first member includes a first brake contact surface that surrounds the holding hole, and a second brake contact surface that protrudes toward the second member in the rotational axis direction,
The input contact surface of the second member includes a first input contact surface that surrounds the pivot hole, and a second input contact surface that protrudes toward the first member in the rotational axis direction,
The second brake contact surface is formed as a brake taper surface whose protruding height gradually increases from the start point position toward the end point position, and / or the second input contact surface extends from the end point position to the end point position. It is formed as an input taper surface where the protruding height gradually increases toward the starting point position,
The first input contact surface slides on the first brake contact surface while the second member rotates from the start point position to an intermediate position that is a predetermined position between the start point position and the end point position. 2. The hinge according to claim 1, wherein the second input contact surface is in sliding contact with the second brake contact surface while the second member rotates from the intermediate position to the end position. Construction.   The hinge structure according to claim 1, further comprising a rotation urging member that is fitted on the collar and urges the second member toward the end position.

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