JP6663390B2 - Switchgear for trunk lid - Google Patents

Description

  The present invention relates to an opening / closing device used for a trunk lid of a vehicle.

  As a conventional arm type hinge for a trunk lid, there has been one described in Patent Document 1. According to this, a hinge support having a mounting piece, a substantially U-shaped arm having one end rotatably attached to a pin provided on the hinge support and the other end attached with a trunk lid, A notch is provided at the portion, and the other end is rotatably attached to a pin provided on the arm, a roller-like pin bridged across the notch of the mounting piece, and a link between the hinge support and the link. And a torsion coil spring.

  The trunk lid can always be urged in the opening direction by the torsional elastic force of the torsion coil spring.

Japanese Utility Model Laid-Open No. 06-62168

  However, in the above-mentioned arm type hinge for the trunk lid, since the arm is operated via the link, the structure is complicated, and it is difficult to obtain a necessary and appropriate torque for opening the trunk lid. There was a problem.

  An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a trunk lid opening / closing device capable of obtaining a necessary and appropriate torque for opening the trunk lid.

In the invention according to claim 1, an arm to which a trunk lid is attached to one end side, an urging member for urging the arm, a support member attached to a vehicle and supporting the other end side of the arm, An opening and closing device for a trunk lid comprising:
The urging member is disposed at both ends and can be locked to the support member, an operating portion disposed at a central portion, and a coil disposed between the engaging portion and the operating portion. Attached to the support member, comprising:
In a state where the arm is attached to the vehicle, a sliding member is provided on a surface of the arm that is a front side of the vehicle,
The operating portion is slidable with respect to the sliding member in a state of being pressed against the sliding member,
When the trunk lid is automatically opened to a predetermined angle by the urging member, the sliding member is provided with an intermediate stop portion that suppresses movement of the operating portion ,
A cylindrical reel member is arranged in a state of being inserted through the coil portion,
The support member has a pair of pivot plates and a connecting plate that connects the pair of pivot plates, and is formed in a U-shaped cross section, and the coil portion is provided outside the pair of pivot plates. Placed,
A shaft member that supports the urging member with the pair of shaft support plates and the reel member inserted is provided.

According to this, since the operating portion directly biases the sliding member disposed on the arm, it is possible to reduce the number of components and to achieve a simple configuration, The stop portion temporarily stops the operating portion when the trunk lid is opened at a predetermined angle, and prevents the trunk lid from suddenly opening due to the urging force of the urging member, thereby preventing injury to a person's jaw or the like. Security can be obtained. When the trunk lid is stopped, the intermediate stop can be released by assisting with the hand, and the trunk lid can be automatically opened again by the urging force of the urging member. The necessary and appropriate torque to open the trunk lid Can be easily obtained. Further, since the urging member can be fixed by inserting the shaft member and the urging member can be removed by removing the shaft member, maintenance can be facilitated.

  Further, in a state where the arm is mounted on the vehicle, the rotation axis of the arm and the axis of the shaft member are parallel to each other, and the axis of the shaft member is located rearward of a position where the arm is supported, and It is arranged on the lower side, the distance between the position where the arm is supported and the operation end point of the operating portion is greater than the distance between the position where the arm is supported and the operation start point of the operating portion, The arm is set to be long, and the arm is arranged between the pair of shaft support plates so as to be able to enter, and the shaft member and the arm are arranged so as not to interfere with each other.

  According to this, although the torque by the urging member is attenuated with the opening of the arm, it can be efficiently urged, so that the device itself can be made compact and the mounting position of the urging member can be changed to the trunk position. A position suitable for easily obtaining an appropriate and necessary torque for opening the lid can be obtained.

  Further, if the covering member attached to the reel member, the sliding member and the locking portion is formed of a member softer than the urging member, uneven wear of the urging member can be suppressed.

It is a side view explaining the outline of the opening and closing device for trunk lids of one embodiment of the present invention. It is explanatory drawing of the state in which the opening / closing device for trunk lids was attached. It is a perspective view of an opening and closing device for trunk lids. (A) of the support member is a perspective view seen from the rear, and (b) is a perspective view seen from the front. (A) of the reel member is a side view, (b) is a view taken in the direction of an arrow Vb, and (c) is a perspective view. It is explanatory drawing of an assembly process. It is a continuation of FIG. It is a continuation of FIG. It is operation | movement explanatory drawing of the opening / closing apparatus for trunk lids. 5 is a graph showing a torque required to open the trunk lid and an opening torque of the arm.

  An embodiment of a trunk lid opening / closing device (hereinafter, referred to as an opening / closing device) 10 of the present invention will be described with reference to the drawings. In the following description, arrows in each drawing indicate directions in a state where the vehicle is installed in the vehicle 200, where F is front, B is rear, R is right, L is left, U is up, and D is down.

  As shown in FIG. 1, the opening and closing device 10 includes a support member 20, an arm 60, a sliding member 70, a double coil spring 80 as an urging member, and a reel member 90.

  As shown in FIG. 4 and the like, the support member 20 is made of metal and includes a first member 30 disposed on the rear side and a second member 50 disposed on the front side.

  The first member 30 extends orthogonally from the pair of pivot plates 31, 32, the connecting plate 33 that couples the pair of pivot plates 31, 32, and the pivot plates 31, 32 along the left-right direction. Bonding plates 34 and 35.

  The second member 50 has a pair of locking plates 51 and 52 and a bridging plate 53 formed to be bridged between the locking plates 51 and 52.

  By joining the joining plate 34 with the locking plate 51, the joining plate 35, and the locking plate 52 by welding or the like, the support member 20 is integrated and formed as one member.

  The support member 20 has a U-shaped cross section including a pair of support plates 31 and 32 whose rear portions are arranged along the front-rear direction, and a connection plate 33 that connects the pair of support plates 31 and 32 in the left-right direction. Is formed.

  Coaxial first shaft support holes 36 and 37 are formed at the rear portions of the shaft support plates 31 and 32 so as to support the double coil spring 80 from the outer surface toward the inner surface.

  On the front and upper sides of the first shaft support holes 36 and 37 of the shaft support plates 31 and 32, recesses 38 and 39 are formed, which are recessed in a dish shape from the outer surface side toward the inner surface side, respectively. Coaxial second shaft support holes 40 and 41 are formed in the center portions of the recesses 38 and 39, respectively, so that the arm 60 can be supported from the outer surface toward the inner surface.

  At the left end of the locking plate 51 and at the right end of the locking plate 52, locked portions 54 and 55, each of which is cut into a semi-long hole, are provided. The locked portions 54 and 55 can lock locking portions 81 and 82 of a double coil spring 80 described later.

  The arm 60 is made of metal and is formed in the shape of a rectangular tube as shown in FIG. 1 and the like. A trunk lid 230 can be attached to one end of the arm 60, and the arm 60 is pivotally supported by the support member 20 at the other end.

  In the present embodiment, as shown in FIG. 6, a shaft hole 65 penetrating along the left-right direction is formed in the arm 60. Stop members 64 each having a cylindrical portion 64a and a flange portion 64b are inserted into the shaft holes 65, respectively. Then, the shaft member 63 is inserted through the cylindrical portion 64a of the stopper member 64 and the second shaft support holes 40, 41, and the leading end (the left end in FIG. 6) of the shaft member 63 is swaged to form the shaft member 63. Is fixed, the arm 60 is rotatably supported on the support member 20 about the left-right direction as an axis. The arm 60 is supported so as to be able to enter between the pair of support plates 31 and 32.

  The arm 60 includes a curved portion 61 that is formed by curving a base end side that is pivotally supported by the support member 20. The curved portion 61 prevents the arm 60 from interfering with a shaft member 100 that supports the double coil spring 80, which will be described later, when the arm 60 rotates. If the arm 60 is formed in a straight line without the curved portion 61, the arm 60 interferes with the shaft member 100 and the opening angle of the trunk lid 230 is narrowed.

  When the bending portion 61 is formed in a straight line without the bending portion 61 in the arm 60, the first sliding surface 71 approaches a horizontal state in the state of FIGS. Therefore, the double coil spring 80 having a strong force is used, which also prevents the device itself from becoming large.

  In the state shown by the solid line in FIG. 1, a sliding member 70 is disposed on the front surface (the surface on the front side of the vehicle 200) of the linear portion 62 linearly connected to the curved portion 61.

  The sliding member 70 is made of a synthetic resin and has a substantially U-shaped cross section, and is fitted from the front side to the outside of the linear portion 62 of the arm 60 as shown in FIGS.

  When the trunk lid 230 is closed, the sliding member 70 is formed with a first sliding surface 71 and a step with respect to the first sliding surface 71 as shown in FIGS. And a third sliding surface 73 formed as a stepped inclined surface.

  In the present embodiment, the first sliding surface 71 and the second sliding surface 72 are formed in parallel, and the third sliding surface 73 is 45 Degrees. The first sliding surface 71 and the second sliding surface 72 may not be parallel, and can be used for torque adjustment by changing the angle. The boundary between the first sliding surface 71 and the third sliding surface 73 serves as an intermediate stop 74. The intermediate stop portion 74 suppresses the movement of an operation portion 83 described later when the trunk lid 230 is opened at a predetermined angle, and stops the movement of the arm 60.

  The double coil spring 80 as the urging member is made of metal and, as shown in FIGS. 7 and 8, is formed in a substantially U-shape with linear locking portions 81 and 82 provided at both ends. An operating portion 83 is provided at a central portion, and coil portions 84 and 85 are provided between the locking portions 81 and 82 and the operating portion 83.

  The double coil spring 80 in this specification forms a substantially U-shaped operating portion 83 connecting two torsion coil springs, and opens the arm 60 by the torsional moment of the coil portions 84 and 85 (see FIG. 1). , 9 and the like).

  The free ends of the locking portions 81 and 82 are covered with cover members 81a and 82a made of a synthetic resin softer than the metal forming the double coil spring 80.

  The reel member 90 (when distinguished, the reel member 90A and the reel member 90B) is made of synthetic resin softer than the metal forming the double coil spring 80, and as shown in FIG. A triple cylinder structure is provided which includes a cylindrical portion 91 having a cylindrical shape smaller in diameter than the large cylindrical portion 91, and a small cylindrical portion 93 formed in a cylindrical shape smaller in diameter than the central cylindrical portion 92. .

  The reel member 90 is provided with a plurality (six in the present embodiment) of ribs 94 extending radially outward from the outer peripheral edge of the small cylindrical portion 93 to the large cylindrical portion 91 via the middle cylindrical portion 92, The large cylinder part 91, the middle cylinder part 92, and the small cylinder part 93 are connected, and the strength necessary for holding the double coil spring 80 is given.

  On one end side in the axial direction of the large cylinder portion 91, a flange portion 95 extending radially outward from the outer peripheral edge portion is provided.

  On the side of the flange portion 95 of the middle cylindrical portion 92, a protruding portion 97 which protrudes in an annular convex shape from the end face of the flange portion 95 is provided.

  The small cylinder portion 93 is formed to have an inner diameter through which the shaft member 100 can be inserted. A holding piece 96 is provided at an end of the small cylinder 93 opposite to the side on which the flange 95 is provided. In the present embodiment, as shown in FIG. 5, a notch 99 cut out from the end surface opposite to the flange 95 toward the flange 95 is formed in the small cylindrical portion 93, and the notch 99 is formed. The holding piece 96 is formed so as to extend from the end face on the flange portion 95 side to the side opposite to the flange portion 95. When viewed from the axial direction of the reel member 90, the holding pieces 96 are located at three equally spaced locations on the peripheral wall portion of the small cylinder portion 93, and are separated from the large cylinder portion 91, the middle cylinder portion 92, and the flange portion 95 of the small cylinder portion 93. It is formed so as to protrude from the opposite end face.

  Each holding piece 96 has a head 98 formed wider on the free end side than other parts, and is formed to be elastically deformable.

  When the shaft member 100 is inserted, the holding piece 96 is elastically deformed to allow the shaft member 100 to enter the small cylindrical portion 93, and after entering, returns to its original shape, and the head 98 extends in the longitudinal direction of the shaft member 100. The shaft member 100 is prevented from detaching from the small tube portion 93 by contacting the end portion of the shaft member 100.

  An assembly mode will be described. As shown in FIG. 1, the support member 20 with the arm 60 attached thereto uses a bolt, a nut, or the like for the vehicle-side member 221 of the trunk room 220 of the vehicle 200 in the bridge plate 53 and the connection plate 33. Attached. The trunk lid 230 is attached to the free end side of the arm 60 in a state where the reel member 90 and the double coil spring 80 are not attached. In this embodiment, the opening / closing device 10 is attached to left and right ends of the trunk lid 230.

  Then, painting is performed with the trunk lid 230 held using a support rod (not shown).

  After the painting is completed, the double coil spring 80 is attached to the support member 20. As shown in FIG. 7, the reel members 90 </ b> A and 90 </ b> B are attached to the coil portions 84 and 85 such that the flange portion 95 is on the operating portion 83 side. Further, the cover members 81a, 82b are press-fitted into the locking portions 81, 82.

  Then, as shown in FIG. 8, the cover members 81a and 82b of the locking portions 81 and 82 are caused to enter and lock the locked portions 54 and 55 of the locking plates 51 and 52, respectively. The shaft member 100 is inserted so that the first shaft support holes 36, 37 of the 31, 32 and the inner peripheral surface of the small cylindrical portion 93 of the double coil spring 80 are aligned.

  In other words, as shown in FIG. 3, the reel member 90 </ b> A, the shaft support plate 31, the shaft support plate 32, and the reel member 90 </ b> B are arranged in this order, and the first shaft support holes 36 and 37 and the inner periphery of the small cylindrical portion 93 are arranged. Thus, the shaft member 100 is inserted through the surface and the double coil spring 80 is supported.

  Further, the flange portion 95 is disposed so as to face the outer surfaces of the pivot support plate 31 and the pivot support plate 32. Thereby, the double coil spring 80 does not come into direct contact with the support member 20, and wear can be suppressed. Further, with the opening and closing of the trunk lid 230, the coil portions 84 and 85 partially touch the reel members 90A and 90B while being twisted, but the reel members 90A and 90B are made of a synthetic resin and are soft. Is not worn. In addition, the reel members 90A and 90B themselves have a rotating structure, so that wear due to friction is small, and generation of a squeaking sound is prevented.

  As shown in FIGS. 1 and 9, when the trunk lid 230 is closed in a state where the operating portion 83 is pressed against the second sliding surface 72, the operating portion 83 slides on the second sliding surface 72. When the trunk lid 230 is completely closed by sliding the third sliding surface 73 and further sliding the first sliding surface 71, the operating portion 83 is moved to a position closest to the rotation axis of the arm 60. It moves, and the winding amount of the double coil spring 80 becomes the largest. The position of the operation part 83 when the trunk lid 230 is completely closed can be said to be the origin position of the operation part 83, and the position of the operation part 83 when it is completely opened is the open position of the operation part 83.

  1 and 9, the rotation axis of the arm 60 is substantially parallel to the axis of the shaft member 100, and the axis of the shaft member 100 is supported by the arm 60 as shown in FIGS. It is located behind and below the current position. In this case, the interpretation of “parallel” includes not only those that are physically “parallel” but also dimensional tolerances, variations in products due to processing accuracy, and the like. Shall be included.

  The torque required to open the trunk lid 230 and the opening torque of the arm 60 will be described. FIG. 10 shows a line connecting the rotation axis of the arm 60 and the tip of the arm 60 on the side where the trunk lid 230 is mounted when the trunk lid 230 is in the completely closed position as shown in FIGS. As 0 degrees, the opening / closing angle of the trunk lid 230 (described as a trunk opening / closing angle in the figure), the torque required to open the trunk lid 230, and the opening torque of the arm 60 by the opening / closing device 10 are represented. .

  When the trunk lid 230 is at the reference position as shown in FIGS. 1 and 9, the distance between the position where the arm 60 is pivotally supported and the operation start point where the operating portion 83 is in contact is the shortest. In this state, the distance increases as the arm 60 rotates.

  When the arm 60 (trunk lid 230) rotates about 30 degrees from the reference position, the operating portion 83 reaches the intermediate stop portion 74 and stops from the automatic opening state by the biasing force of the double coil spring 80, and the arm 60 The opening torque falls below the torque required to open the trunk lid 230.

  In other words, since the operating portion 83 temporarily stops at the intermediate stop portion 74 and then goes over the third sliding surface 73 and goes to the second sliding surface 72, a torque for getting over the moving portion 83 is required. However, only the urging force of the double coil spring 80 does not open any more. This prevents the trunk lid 230 from suddenly opening due to the urging force of the double coil spring 80 and hitting a person's jaw or the like to cause injury.

  In order for the operating portion 83 to get over the third sliding surface 73, it is necessary to lift the trunk lid 230 by hand to assist.

  When the arm 60 (trunk lid 230) rotates about 52 degrees from the reference position by lifting the trunk lid 230 by hand, the opening torque of the arm 60 exceeds the torque required to open the trunk lid 230, and the torque It opens with little difference.

  Then, when the arm 60 (trunk lid 230) rotates about 101 degrees from the reference position, the distance between the position where the arm 60 is pivotally supported and the point where the operating section 83 is in contact becomes the longest, and 101 degrees. Exceeds the distance, the distance gradually decreases.

  Thus, the arm 60 (trunk lid 230) rotates 110 degrees from the reference position by the biasing force of the double coil spring 80, and the trunk lid 230 is completely opened.

  When the trunk lid 230 is closed, when passing through the third sliding surface 73, the operating portion 83 is in a state of sliding down from the second sliding surface 72, and does not feel a burden on the hand. .

  In the opening / closing device 10 having the above-described configuration, the arm 60 to which the trunk lid 230 is attached on one end side, the double coil spring 80 as an urging member for urging the arm 60, and the other end of the arm 60 And a support member 20 for pivotally supporting the side, wherein the double coil spring 80 is provided at both ends with locking portions 81 and 82 capable of locking with the support member 20, and a central portion. , And mounted on the support member 20 with the coil portions 84 and 85 disposed between the locking portions 81 and 82 and the operating portion 83, and mounted on the vehicle 200. , A sliding member 70 is provided on a surface of the arm 60 on the front side of the vehicle 200, and the operating portion 83 is slidable with respect to the sliding member 70 in a state of being pressed against the sliding member 70, The rotary members 70, when the trunk lid 230 is automatically opened to a predetermined angle by the double coil spring 80, intermediate stop portion 74 is provided to suppress the movement of the actuating portion 83.

  According to this, since the operating portion 83 directly biases the sliding member 70 disposed on the arm 60, the number of components can be reduced and a simple configuration can be achieved. At the same time, when the trunk lid 230 is opened at a predetermined angle by the intermediate stop part 74, the operating part 83 is temporarily stopped, and the trunk lid 230 is suddenly opened by the biasing force of the double coil spring 80, and the jaw of the person or the like is opened. It is possible to prevent injury by hitting the vehicle and obtain safety. The stopped trunk lid 230 can be released automatically by the urging force of the urging member by releasing the intermediate stop by manually assisting the trunk lid 230, which is necessary and appropriate for opening the trunk lid 230. High torque can be easily obtained.

Further, a cylindrical reel member 90 is disposed in a state of being inserted through the coil portions 84 and 85,
The support member 20 includes a pair of pivot plates 31 and 32 and a connecting plate 33 that couples the pair of pivot plates 31 and 32 and is formed in a U-shaped cross section. The coil portions 84 and 85 are arranged outside the shaft 32, and the shaft member 100 that supports the double coil spring 80 with the pair of shaft support plates 31 and 32 and the reel member 90 inserted therethrough is provided.

  According to this, the double coil spring 80 can be fixed by inserting the shaft member 100, and the double coil spring 80 can be removed by removing the shaft member 100, so that maintenance can be facilitated.

  In a state where the arm 60 is attached to the vehicle 200, the rotation axis of the arm 60 is parallel to the axis of the shaft member 100, and the axis of the shaft member 100 is located rearward of the position where the arm 60 is supported, and The distance between the position where the arm 60 is pivotally supported and the operation end point of the operation unit 83 is smaller than the distance between the position where the arm 60 is pivotally supported and the operation start point of the operation unit 83. The arm 60 is set long so that the arm 60 can enter between the pair of shaft support plates 31 and 32, and the shaft member 100 and the arm 60 are arranged so as not to interfere with each other.

  According to this, the torque by the double coil spring 80 is attenuated when the arm 60 is opened, but the bias can be applied efficiently, so that the device itself can be made compact and the mounting position of the double coil spring 80 can be reduced. Can be set to a position suitable for easily obtaining a necessary and appropriate torque for opening the trunk lid 230.

  Further, since the covering members 81a and 82a, the reel member 90, and the sliding member 70 are formed of members softer than the double coil spring 80, uneven wear of the double coil spring 80 can be suppressed.

  The switchgear 10 of the present invention is not limited to the above configuration. That is, various design changes can be made without departing from the gist of the present invention.

10 For trunk lid (opening / closing device)
Reference Signs List 20 support member 31 support plate 32 support plate 33 connecting plate 60 arm 70 sliding member 74 intermediate stop portion 80 double coil spring 81 locking portion 82 locking portion 83 operating portion 84 coil portion 85 coil portion 90 reel member 90A reel Member 90B Reel member 100 Shaft member 200 Vehicle 230 Trunk lid

Claims (3)

An opening and closing device for a trunk lid, comprising: an arm to which a trunk lid is attached to one end side; an urging member for urging the arm; and a support member attached to a vehicle and supporting the other end side of the arm. So,
The urging member is disposed at both ends and can be locked to the support member, an operating portion disposed at a central portion, and a coil disposed between the engaging portion and the operating portion. Attached to the support member, comprising:
In a state where the arm is attached to the vehicle, a sliding member is provided on a surface of the arm that is a front side of the vehicle,
The operating portion is slidable with respect to the sliding member in a state of being pressed against the sliding member,
When the trunk lid is automatically opened to a predetermined angle by the urging member, the sliding member is provided with an intermediate stop portion that suppresses movement of the operating portion ,
A cylindrical reel member is arranged in a state of being inserted through the coil portion,
The support member has a pair of pivot plates and a connecting plate that connects the pair of pivot plates, and is formed in a U-shaped cross section, and the coil portion is provided outside the pair of pivot plates. Placed,
An opening / closing device for a trunk lid, comprising: a pair of shaft support plates; and a shaft member that supports the urging member while the reel member is inserted . In the state where the arm is mounted, the rotation axis of the arm and the axis of the shaft member are parallel to each other, and the axis of the shaft member is located on the rear side of the position where the arm is supported, and on the lower side. And the distance between the position where the arm is pivotally supported and the operation end point of the operating portion is set longer than the distance between the position where the arm is pivotally supported and the operation start point of the operation portion. And
2. The trunk lid opening and closing according to claim 1, wherein the arm is provided so as to be able to enter between the pair of shaft support plates, and the shaft member and the arm are provided so as not to interfere with each other. apparatus.   3. The trunk lid according to claim 1, wherein the reel member, the sliding member, and the covering member provided on the locking portion are formed of a member softer than the urging member. 4. Switchgear.

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