JP2018100504A - Opening and closing structure of lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening and closing structure of a lid which can widen the space for putting in and taking out goods and can reduce rattling.SOLUTION: When an approximately plate-shaped lid 102 provided at the opening of the storage moves with its circumference from the closed position along the inner peripheral surface of the opening to the open position for exposing the interior of the storage, a first slide member 20 and a second slide member 30 which are positioned at the bottom edge move upward and a cam member 41 and a plate portion 45 move upward. At the same time, a cam member 41 and a plate-like portion 45 rotate around the rotation shaft 25 provided in the vicinity of the upper end of the first slide member 20, and as the cam member 41 and the plate-like portion 45 rotate, the lid sliding portion 50 fixed to the back surface of the lid 102 moves in parallel.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a lid opening / closing structure.

  In Patent Document 1, the base end of the lid that opens and closes the opening of the storage body is an underfloor storage that is rotatably connected to the frame of the storage body, and a link mechanism for holding the lid opening and closing; An underfloor storage having a link lifting mechanism is disclosed. In the invention described in Patent Document 1, when the lid is closed, there is almost no gap between the base end of the lid and the frame of the storage body. When the lid is opened, the lid lifting link mechanism is The base end of the lid is positioned higher than the frame of the storage body while preventing the base end from touching the frame of the storage body, and at least the outer surface of the cover is positioned from the inner surface of the frame of the storage body. Is also located outward.

JP 2001-32518 A

  In the invention described in Patent Document 1, since the link mechanism protrudes into the storage, there is a problem that the link mechanism becomes an obstacle when an article is taken in and out, and the usability is poor. In addition, since the link mechanism has a large number of shafts, there is a problem that the play is increased.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lid opening and closing structure that can widen a space for putting in and out an article and can reduce rattling.

  In order to solve the above-described problem, the lid opening / closing structure according to the present invention includes, for example, a substantially plate-like lid provided at an opening of a storage, An open / close structure of a lid that is supported to be openable / closable between an open position that exposes the interior of the storage, and a guide member that is provided on a wall surface inside the storage, and that is vertically moved along the guide member. A first slide member movably provided in a direction, a pivot shaft provided in the vicinity of the upper end of the first slide member, and a second slide movably provided in the vertical direction along the first slide member. A slide member, a cam member pivotally supported by the rotation shaft, the cam member contacting the second slide member at a position different from the position of the rotation shaft, and a lid fixed to the back surface of the lid Along with the slide part and the cam member around the rotation axis A movable plate-like portion, wherein the lid slide portion is movably provided, and in the closed position, the first slide member and the second slide member are positioned at a lower end. When the lid moves from the closed position to the open position, the first slide member and the second slide member move upward, so that the cam member and the plate-like portion move upward. The lid slide part rotates while moving, and the lid slide part moves in parallel with the rotation of the cam member and the plate-like part.

  According to the lid opening / closing structure of the present invention, when the lid moves from the closed position to the open position, the first slide member and the second slide member located at the lower end move upward, and the cam member and the plate-like portion. Moves upward. At the same time, the cam member and the plate-like portion turn around a turning shaft provided in the vicinity of the upper end of the first slide member, and are fixed to the back surface of the lid as the cam member and the plate-like portion turn. The lid slide moves in parallel. Therefore, a space-saving switchgear that does not use a link mechanism can be provided. In addition, since the parts do not protrude into the storage when the lid is opened and closed, the space for putting in and out articles can be widened. Furthermore, since only one pivot shaft is required, the backlash when the lid is pivoted can be reduced.

  Here, an elastic member that is provided between the first slide member and the second slide member and biases upward force to the second slide member is provided, and a rotation angle of the cam member is approximately 15 degrees. In this case, the force by which the elastic member rotates the cam member in the direction in which the lid is opened and the force in which the cam member is rotated in the direction in which the lid is closed by the weight of the lid coincide with each other. May be. Thereby, a lid | cover can be stopped in arbitrary positions during the opening / closing operation | movement of a lid | cover. Therefore, it is possible to provide a safe and convenient storage.

  Here, a second elasticity is provided between the guide member and the first slide member, and biases a force in a direction away from the guide member against the first slide member to push up the first slide member. A member may be provided. Thereby, the elastic member can assist the opening operation of the lid, and thus the user can open the lid with a light force.

  In order to solve the above-described problem, the lid opening / closing structure according to the present invention includes, for example, a substantially plate-like lid provided at an opening of a storage, An open / close structure of a lid that is supported to be openable / closable between an open position that exposes the interior of the storage, and a guide member that is provided on a wall surface inside the storage, and that is vertically moved along the guide member. A first slide member movably provided in a direction, a pivot shaft provided in the vicinity of the upper end of the first slide member, and a second slide movably provided in the vertical direction along the first slide member. A slide member, a cam member pivotally supported by the rotation shaft, the cam member contacting the second slide member at a position different from the position of the rotation shaft, and the rotation axis together with the cam member A plate-like portion that can be pivoted on the back surface of the lid. The first slide member is provided between the fixed plate-like portion, the guide member and the first slide member, and biases a force in a direction away from the guide member to the first slide member. An elastic member that pushes up the first slide member, and the guide member is provided with a lower protrusion and an upper protrusion that are movable in a direction substantially orthogonal to the movement direction of the first slide member. On the side surface, a lower recess and an upper recess are formed, and in the closed position, the lower projection fits into the lower recess, and the upper projection fits in the upper recess, and in the open position, The upper protrusion fits into the lower recess, and in the closed position, the lid is disposed inside the opening, and in the open position, the lid is disposed outside the opening. Material is characterized in that it is rotatable.

  According to the lid opening / closing structure of the present invention, when the lid moves from the closed position to the open position, the elastic member pushes up the first slide member, the lower protrusion fits into the lower recess, and the upper protrusion extends into the upper recess. The first slide member is translated from the state in which the first protrusion is fitted into the state in which the upper protrusion is fitted in the lower recess. Then, when the second slide member moves upward along the first slide member, the cam member and the plate-like portion that are pivotally supported by the rotation shaft, that is, the lid rotates. Therefore, a space-saving switchgear that does not use a link mechanism can be provided. In addition, since the parts do not protrude into the storage when the lid is opened and closed, the space for putting in and out articles can be widened. Furthermore, since only one pivot shaft is required, the backlash when the lid is pivoted can be reduced.

  Here, a second elastic member that is provided between the first slide member and the second slide member and biases an upward force to the second slide member is provided, and the rotation angle of the cam member is substantially equal. At 15 degrees, the second elastic member rotates the cam member in the direction to open the lid, and the force to rotate the cam member in the direction to close the lid by its own weight. You may make it correspond. Thereby, a lid | cover can be stopped in arbitrary positions during the opening / closing operation | movement of a lid | cover. Therefore, it is possible to provide a safe and convenient storage.

  According to the present invention, it is possible to widen a space for taking in and out articles and to reduce rattling.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the outline of the underfloor storage 100 in which the opening / closing apparatus 1 which has the opening / closing structure of the lid | cover which is one Embodiment of this invention was provided, and is a figure which saw through the principal part, Comprising: (A) is a plane. It is a figure, (B) is a front view, (C) is a side view. 1 is a cross-sectional view illustrating an outline of an opening / closing device 1. FIG. 1 is an exploded perspective view showing an outline of an opening / closing device 1. FIG. It is a figure which shows the state in the middle of opening the lid | cover 102. It is a figure which shows the state which the lid | cover 102 finished opening. The moment M, the torque T, and the difference D between the moment M and the torque T are graphed. It is sectional drawing which shows the outline of the opening / closing apparatus 2 which has the opening / closing structure of the lid | cover which is one Embodiment of this invention. It is a figure which shows the state after the elastic member 60 pushed up the 1st slide member 20A.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The lid opening and closing structure of the present invention includes a substantially plate-like lid provided in the opening of the storage, a closed position whose peripheral edge is along the inner peripheral surface of the opening, and an open position that exposes the inside of the storage, It is supported so that it can be opened and closed freely. In the following description, an example in which the opening / closing device having the lid opening / closing structure of the present invention is provided in the underfloor storage is used, but the present invention is used when opening and closing the lids of various devices other than the underfloor storage. Can do.

<First Embodiment>
FIG. 1 is a view showing an outline of an underfloor storage 100 in which an opening / closing device 1 having a lid opening / closing structure according to an embodiment of the present invention is provided, and is a view seen through a main part. In FIG. 1, (A) is a plan view, (B) is a front view, and (C) is a side view.

  Hereinafter, the upward direction and the downward direction in FIGS. 1B and 1C are defined as a + z direction and a −z direction, respectively. In FIG. 1A, the direction from top to bottom is defined as + x direction, and the direction from left to right is defined as + y direction. Also, -x is the back, + x is the front, -y is the left, + y is the right, -z is the bottom, and + z is the top.

  The underfloor storage 100 mainly includes a storage body 101 and a lid 102. The storage body 101 is a box-shaped member, and an opening is formed in the upper part. The storage body 101 is provided on the lower side of the floor plate 103 so that the upper end surface is in contact with the back surface of the floor plate 103. An opening 103a is formed in the floor board 103, and a lid 102 is provided so as to cover the opening 103a. In FIG. 1, a part of the floor board is illustrated as the floor board 103 for the sake of explanation.

  In the closed position shown in FIG. 1, the lid 102 is provided inside the opening 103a, and the periphery of the lid 102 is along the inner peripheral surface of the opening 103a. The lid 102 is provided with a grip portion 102 a that is used when the user opens the lid 102.

  The opening / closing device 1 is provided on the inner wall surface of the storage body 101. In the present embodiment, the opening / closing device 1 is provided on each of the near-side wall surface 101a and the back-side wall surface 101b.

  Next, the opening / closing device 1 will be described. FIG. 2 is a cross-sectional view schematically showing the opening / closing device 1. In FIG. 2, the opening / closing device 1 provided on the wall surface 101 b is illustrated. FIG. 3 is an exploded perspective view schematically showing the opening / closing device 1.

  The opening / closing device 1 mainly includes a guide member 10, a first slide member 20, a rotation shaft 25, a second slide member 30, a cam assembly 40, and a lid slide portion 50.

  The guide member 10 includes a case 11 that is a box-shaped member having an upper surface opened. The case 11 is fixed to the wall surfaces 101a and 101b (see FIG. 1).

  The side surface 11b on the + y side of the case 11 is a sliding surface, and the first slide member 20 slides along the side surface 11b.

  On the side surface 11c side of the case on the −y side, a protruding member 12, an elastic member 13, and a holding member 14 that holds the protruding member 12 are provided. The protruding member 12 is inserted into a hole 14 a formed in the holding member 14.

  The elastic member 13 is inserted into a hole 12a (see FIG. 3) formed on the bottom surface of the protruding member 12, and is provided between the protruding member 12 and the side surface 11c. The elastic member 13 urges the protruding member 12 with a force in the direction away from the side surface 11c (a force in the + y direction).

  Two protruding members 12 are provided along the height direction (z direction). The lower protrusion member 12 corresponds to a lower protrusion, and the upper protrusion member 12 corresponds to an upper protrusion.

  A bottom surface member 15 having a cylindrical portion 15 a is provided on the bottom surface 11 d of the case 11. The cylindrical part 15 a is inserted into the hollow part of the elastic member 60.

  The first slide member 20 is inserted between the side surface 11 b and the holding member 14, and is provided so as to be movable in the vertical direction along the side surface 11 b and the holding member 14, that is, the guide member 10. As shown in FIG. 2, when the lid 102 (not shown in FIG. 2) is in the closed position, the first slide member 20 is located at the lower end, and most of the first slide member 20 overlaps with the guide member 10. When the lid 102 is in the open position, the first slide member 20 is positioned at the upper end, and most of the first slide member 20 protrudes above the guide member 10 (detailed later).

  A cylindrical portion 21 is provided on the bottom surface 20 a of the first slide member 20 so as to protrude downward (−z direction). The cylindrical part 21 is inserted into the hollow part of the elastic member 60. That is, the elastic member 60 is provided between the case 11 and the first slide member 20 and biases an upward force to the first slide member 20.

  Two concave portions 20 c and 20 d are formed on the side surface 20 b (the surface facing the holding member 14) on the −y side of the first slide member 20. When the lid 102 is in the closed position, the protruding members 12 are fitted into the recesses 20c and 20d, respectively. When the lid 102 is in the open position, the upper protruding member 12 is fitted into the lower concave portion 20d (detailed later).

  A hole 20e (see FIG. 3) is formed in the vicinity of the upper end (+ z side end) of the first slide member 20. A rotation shaft 25 is provided in the hole 20e.

  The first slide member 20 has a hole 20f into which the pin 22 (see FIGS. 3 and 4) is inserted. The pin 22 is inserted into the hole 20f through a long hole 11e (see FIG. 4) formed in the case 11 so that the first slide member 20 does not come out of the case 11. As the pin 22 moves along the elongated hole 11e, the first slide member 20 moves along the guide member 10 in the vertical direction.

  The second slide member 30 is inserted into the first slide member 20 and is provided so as to be movable in the vertical direction along the first slide member 20. The second slide member 30 is formed with holes 30a and 30b exposed on the bottom surface. The elastic member 61 is inserted into the holes 30a and 30b. That is, the elastic member 61 is provided between the first slide member 20 and the second slide member 30 and biases an upward force to the second slide member 30. The second slide member 30 is located at the lower end in the closed position and is located at the upper end in the open position.

  The upper surface of the second slide member 30 is a surface that comes into contact with the cam assembly 40 and includes a horizontal portion 30c and an inclined portion 30d.

  The cam assembly 40 mainly includes a cam member 41 and a plate-like portion 45. The cam member 41 and the plate-like portion 45 are pivotally supported by the rotation shaft 25 and can rotate around the rotation shaft 25.

  The cam member 41 is substantially L-shaped when viewed from a direction substantially parallel to the rotation shaft 25 (x direction), and includes a short arm 41a and a long arm 41b. . A hole 41c (see FIG. 3) is formed near the tip of the arm 41a, and the rotation shaft 25 is provided in the hole 41c. A hole 41f (see FIG. 3) is formed near the tip of the arm 41b, and a connecting rod 42 is inserted into the hole 41f.

  The tip of the arm 41b is a part that comes into contact with the horizontal part 30c and the inclined part 30d of the second slide member 30, and has a curved surface part 41d and a flat part 41e. When the lid 102 is in the closed position, the flat surface portion 41e contacts the horizontal portion 30c (see FIG. 2).

  The elastic member 61 biases an upward force on the second slide member 30, and the second slide member 30 biases an upward force on the cam member 41. The position where the second slide member 30 and the cam member 41 are in contact (the contact position between the horizontal portion 30c and the flat surface portion 41e or the contact position between the inclined portion 30d and the curved surface portion 41d) is different from the position of the rotation shaft 25. Therefore, the cam member 41 rotates when the second slide member 30 pushes up the cam member 41.

  The plate-like portion 45 is a plate-like member bent on both sides, and is provided so as to cover the cam member 41. The plate-like portion 45 includes a flat portion 45a and two bent portions 45b located on both sides of the flat portion 45a. The flat surface portion 45 a comes into contact with the lid slide portion 50.

  Two holes 45c and 45d (see FIG. 3) are formed in the two bent portions 45b, respectively. The rotation shaft 25 is inserted into the hole 45c, and the connecting rod 42 is inserted into the hole 45d. Therefore, the plate-like portion 45 is pivotally supported by the rotation shaft 25 and rotates around the rotation shaft 25 together with the cam member 41.

  Long holes 45e and 45f used when the lid 102 is slid are formed in the flat surface portion 45a and the bent portion 45b, respectively.

  The lid slide portion 50 is a plate-like member that is bent on both sides, and includes a flat portion 50a and bent portions 50b and 50c (see FIG. 3). The lid slide part 50 is provided so as to cover the plate-like part 45. The upper surface of the flat portion 50a is fixed to the back surface of the lid 102, and the lower surface of the flat portion 50a is in contact with the upper surface of the flat portion 45a. The bent portions 50b and 50c are provided outside the bent portion 45b.

  Holes 50d (see FIG. 3) are respectively formed in the bent portions 50b and 50c, and rods 51 and 52 are inserted into the holes 50d. The lid slide part 50 can move along the plate-like part 45 by inserting the bar members 51 and 52 into the hole 50d and the long hole 45f.

  Both ends of the elastic member 62 are provided on the bar 51 and the rotation shaft 25, respectively. The elastic member 62 urges the lid slide portion 50 with a force in a direction in which the lid slide portion 50 (that is, the lid 102) approaches the rotation shaft 25.

  Next, an operation for opening and closing the lid 102 using the opening / closing device 1 configured as described above will be described. When the user grips the grip portion 102 a and lifts the lid 102 upward, the weight of the lid 102 is not applied to the opening / closing device 1, and the opening / closing device 1 starts to open the lid 102.

  First, the second slide member 30 is pushed upward by the elastic member 61. As a result, the state in which the horizontal part 30c and the flat part 41e are in contact (closed position) shifts to the state in which the inclined part 30d and the curved part 41d are in contact.

  FIG. 4 is a diagram showing a state in the middle of opening the lid 102 (partially omitted in FIG. 4). The urging force by the elastic member 61 is transmitted from the inclined portion 30d to the curved surface portion 41d, that is, the cam member 41 (see arrow A in FIG. 4). Since the contact position between the inclined portion 30d and the curved surface portion 41d is different from the position of the rotation shaft 25, the cam assembly 40 rotates about the rotation shaft 25 by the urging force of the elastic member 61 (see FIG. (See 4 arrow B).

  Since there is no gap between the lid 102 and the opening 103 a, the lid 102, that is, the lid slide portion 50, is biased by the elastic member 62 when the user holds the grip 102 a and lifts the lid 102 upward. To move away from the rotary shaft 25 (see arrow C in FIG. 4). Thereby, interference with the lid | cover 102 and the opening part 103a can be prevented, and the lid | cover 102 can be opened. In the state shown in FIG. 4, the lid 102 is further away from the rotation shaft 25 than the state shown in FIG. 2. In particular, in the state shown in FIG. 4, since the rotation angle of the lid 102 is approximately 45 degrees, the lid 102 is at a position farthest from the rotation shaft 25.

  Further, when the user grips the grip portion 102 a and pulls up the lid 102, the first slide member 20 moves upward by the urging force of the elastic member 60. In the state shown in FIG. 2, the protruding member 12 is fitted in the recesses 20c and 20d. However, in the state shown in FIG. 4, the first slide member 20 is located above the state shown in FIG. The protruding member 12 is not fitted in the recesses 20c and 20d.

  Thus, when the lid 102 moves from the closed position to the open position, the cam assembly 40 (cam member 41 and plate-like portion 45) rotates while moving upward, and the lid slide portion 50 (lid 102) moves in parallel with the rotation of the cam assembly 40. Therefore, the parallel movement amount of the lid 102 and the parallel movement amount of the cam assembly 40 are minimized. Therefore, the user can easily open the lid 102 with a light force.

  FIG. 5 is a diagram illustrating a state where the lid 102 has been opened. In the state shown in FIG. 5, the first slide member 20 moves upward as compared to the state shown in FIG. 4.

  When closing the lid 102, the user grasps the grip portion 102 a and lifts the lid 102 in the open position shown in FIG. 5 diagonally forward (upper left direction in FIG. 5). One slide member 20 moves upward, and the lid 102 (lid slide portion 50) moves away from the rotation shaft 25. By moving the grip portion 102a downward, the lid 102 (cam assembly 40) moves downward while rotating, and the lid 102 moves to the closed position shown in FIG.

  Since the center of gravity of the lid 102 is located far from the rotation shaft 25, the lid 102 always tries to close when the lid 102 is in a position other than the closed position. However, in the present embodiment, the opening / closing device 1 fixes the lid 102 with the lid 102 opened at an arbitrary angle. Hereinafter, the function of holding the lid 102 will be described.

  The moment M at which the lid 102 is about to close is determined by M = MG × W (kgfmm). Here, MG (see FIG. 1B) is the distance (mm) between the center of the rotation shaft 25 and the center of gravity of the lid 102, and W is the weight (kgf) of the lid 102. That is, the moment M is a force that rotates the cam member 41 in the direction in which the lid 102 is closed by the weight of the lid 102.

  On the other hand, the torque T of the opening / closing device 1 is obtained by T = W2 × H (kgfmm). Here, W2 is a force (kgf) by which the elastic member 61 pushes up the second slide member 30, and H (see FIG. 4) is a contact between the center of the rotating shaft 25, the inclined portion 30d, and the curved surface portion 41d. The distance from the position (mm). That is, the torque T is a force by which the elastic member 61 rotates the cam member 41 in the direction in which the lid 102 is opened.

  FIG. 6 is a graph showing the moment M, the torque T, and the difference D (D = T−M) between the moment M and the torque T. When moment M and torque T match (difference D is 0), lid 102 is stationary, and when moment M is greater than torque T (difference D is a negative value), lid 102 attempts to close, and torque 102 When T is greater than moment M (difference D is a positive value), opening / closing device 1 attempts to open lid 102.

  In the present embodiment, the moment M and the torque T coincide with each other when the rotation angle of the lid 102, that is, the cam member 41 is approximately 15 degrees. However, in a range where the frictional force exceeds the difference between the moment M and the torque T (see the hatched portion in FIG. 6), the lid 102 is stationary. Therefore, the opening / closing device 1 can hold the lid 102 with the lid 102 open. In particular, when the rotation angle of the cam member 41 is approximately 15 degrees, the moment M and the torque T are made to coincide with each other, so that the rotation angle of the cam member 41 is approximately 10 degrees or more, that is, the user uses the lid 102 in actual use. The opening / closing device 1 can hold the lid 102 at an openable angle.

  According to the present embodiment, the opening / closing device 1 is substantially box-shaped, and the size (size on the zy plane) does not change as the lid 102 is opened / closed, so that a space-saving opening / closing device can be obtained. In addition, since no link mechanism is used, parts do not protrude into the storage body 101 when the lid 102 is opened and closed, and the space for putting in and out articles can be widened. Therefore, the convenience at the time of putting in / out goods can be improved.

  Further, according to the present embodiment, since no link mechanism is used, only one rotating shaft 25 is required. Therefore, unlike an opening / closing device using a link mechanism that requires a large number of shafts, rattling when the lid 102 is opened / closed can be reduced.

  Further, according to the present embodiment, the first slide member 20 can be moved in the vertical direction and the lid 102 can be moved in parallel, whereby the gap between the lid 102 and the opening 103a can be substantially eliminated. .

  Further, according to the present embodiment, when the rotation angle of the lid 102 is approximately 15 degrees, the moment M and the torque T coincide with each other, so that the lid 102 is stopped at an arbitrary position during the opening / closing operation of the lid 102. Can be made. Therefore, it is possible to provide an underfloor storage that is safe and easy to use. Further, since the elastic members 60 and 61 assist the opening operation, the user can open the lid 102 with a light force.

  In the present embodiment, it is desirable that the biasing force of the elastic member 60 be smaller than the weight of the lid 102 and the weight of the opening / closing device 1 other than the guide member 10. As a result, the lid 102 can be closed with a weak force.

<Second Embodiment>
In the first embodiment, when the lid 102 is opened and closed, the first slide member 20 and the second slide member 30 are translated while the lid 102 is translated, but the lid 102 does not necessarily need to be translated.

  In the second embodiment, when the lid 102 is opened and closed, the lid 102 is not translated, but the first slide member 20 and the second slide member 30 are translated. Hereinafter, the switchgear 2 according to the second embodiment will be described. In addition, about the part same as the switchgear 1 which concerns on 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  FIG. 7 is a cross-sectional view schematically showing an opening / closing device 2 having a lid opening / closing structure according to an embodiment of the present invention. The opening / closing device 2 mainly includes a guide member 10A, a first slide member 20A, a rotation shaft 25, a second slide member 30, and a cam assembly 40A.

  In the guide member 10 </ b> A, a bottom surface member 15 </ b> A having a recess 15 b is provided on the bottom surface 11 d of the case 11. The elastic member 60 is inserted into the recess 15b.

  The first slide member 20A is inserted between the side surface 11b and the holding member 14. The elastic member 60 is in contact with the bottom surface 20a of the first slide member 20A. That is, the elastic member 60 is provided between the case 11A and the first slide member 20A, and biases an upward force to the first slide member 20A.

  As shown in FIG. 7, when the lid 102 is in the closed position, the first slide member 20 </ b> A is located at the lower end, and most of the first slide member 20 overlaps with the guide member 10. When the first slide member 20A is positioned at the lower end, the protruding members 12 are fitted into the recesses 20c and 20d, respectively. In addition, when the first slide member 20A moves upward and the first slide member 20A is positioned at the upper end, most of the first slide member 20A protrudes above the guide member 10 (details will be described later).

  The cam assembly 40A mainly includes a cam member 41 and a plate-like portion 46. The cam member 41 and the plate-like portion 46 are pivotally supported by the rotation shaft 25 and can rotate around the rotation shaft 25.

  The plate-like portion 46 is a plate-like member bent on both sides, and is provided so as to cover the cam member 41. The plate-like portion 46 includes a flat portion 46a and two bent portions 46b located on both sides of the flat portion 46a. The flat portion 46 a is fixed to the back surface of the lid 102.

  The two bent portions 46b are formed with a hole into which the rotating shaft 25 is inserted and a hole into which the connecting rod 42 is inserted. The rotating shaft 25 and the connecting rod 42 are inserted into the cam member 41 and the plate-like portion 46. Accordingly, the plate-like portion 46 is pivotally supported by the rotation shaft 25 and rotates around the rotation shaft 25 together with the cam member 41.

  Next, an operation for opening and closing the lid 102 using the opening / closing device 2 configured as described above will be described. When the user grips the grip portion 102a and lifts the lid 102 upward, the weight of the lid 102 is not applied to the opening / closing device 1, and the elastic member 60 pushes up the first slide member 20A.

  FIG. 8 is a diagram illustrating a state after the elastic member 60 pushes up the first slide member 20A. The elastic member 60 pushes up the first slide member 20A from the state where the first slide member 20A is positioned at the lower end (see FIG. 7) to the state where the first slide member 20A is positioned at the upper end. Thereby, the lid 102 moves upward from the state provided inside the opening 103a along the inner peripheral surface of the opening 103a, and can be rotated. In the state where the first slide member 20A is located at the upper end, the upper protruding member 12 is fitted into the recess 20d.

  Thereafter, when the user grips the grip portion 102 a and lifts the lid 102, the cam assembly 40 </ b> A and the lid 102 rotate around the rotation shaft 25. Since the upper protrusion member 12 is fitted in the recess 20d, the position of the first slide member 20 in the height direction is fixed while the lid 102 is rotating. Also in the opening / closing device 2, as with the opening / closing device 1, the lid 102 can be stopped at any position during the opening / closing operation.

  When closing the lid 102, when the user grips the grip portion 102a and rotates the lid 102, the lid 102, that is, the cam assembly 40A rotates approximately 90 degrees. Thereafter, when the user pushes down the lid 102, the lid 102, that is, the first slide member 20A and the second slide member 30 are lowered to the lower end.

  According to the present embodiment, since the lid slide mechanism is not used, it is possible to provide an opening / closing device that has a simple configuration, saves space and has a large space for putting in and out articles, and eliminates the gap between the lid 102 and the opening 103a. it can. In addition, since there is only one pivot shaft 25, rattling when opening and closing the lid 102 can be reduced.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like within a scope not departing from the gist of the present invention are included. .

  Further, in the present invention, “substantially” is a concept including not only a case where they are exactly the same but also errors and deformations that do not lose the identity. For example, “substantially parallel” and “substantially orthogonal” are not limited to strictly parallel and orthogonal. Further, for example, when simply expressing as parallel, orthogonal, etc., not only strictly parallel, orthogonal, etc., but also includes cases of substantially parallel, substantially orthogonal, etc. Further, in the present invention, the “neighborhood” is a concept indicating that when it is in the vicinity of A, for example, it is near A and may or may not include A.

1, 2: Opening / closing device 10, 10A: Guide member 11, 11A: Case 11b, 11c: Side surface 11d: Bottom surface 11e: Long hole 12: Projection member 12a: Hole 13: Elastic member 14: Holding member 14a: Holes 15, 15A : Bottom member 15a: cylindrical portion 15b: concave portion 20, 20A: first slide member 20a: bottom surface 20b: side surface 20c, 20d: concave portion 20e: hole 20f: convex portion 21: cylindrical portion 25: rotating shaft 30: first 2 slide members 30a, 30b: hole 30c: horizontal portion 30d: inclined portion 40, 40A: cam assembly 41: cam members 41a, 41b: arm 41c: hole 41d: curved surface portion 41e: flat surface portion 41f: hole 42: connecting rod 45, 46: plate-like portions 45a, 46a: flat portions 45b, 46b: bent portions 45c, 45d: holes 45e, 45f: long holes 50: lid slide portion 50 a: plane part 50b, 50c: bent part 50d: hole 51, 52: bar 60, 61, 62: elastic member 100: under floor storage 101: storage main body 101a, 101b: wall surface 102: lid 102a: gripping part 103: Floor board 103a: Opening

Claims (5)

A substantially plate-shaped lid provided at the opening of the storage is supported so as to be openable and closable between a closed position whose peripheral edge is along the inner peripheral surface of the opening and an open position where the inside of the storage is exposed. A lid opening and closing structure,
A guide member provided on the inner wall surface of the storage;
A first slide member provided so as to be movable in the vertical direction along the guide member;
A rotating shaft provided in the vicinity of the upper end of the first slide member;
A second slide member provided so as to be movable in the vertical direction along the first slide member;
A cam member pivotally supported on the pivot shaft, wherein the cam member contacts the second slide member at a position different from the position of the pivot shaft;
A lid slide portion fixed to the back surface of the lid;
A plate-like portion rotatable around the rotation axis together with the cam member, the plate-like portion provided with the lid slide portion movable;
With
In the closed position, the first slide member and the second slide member are located at the lower end,
When the lid moves from the closed position to the open position, the first slide member and the second slide member move upward, so that the cam member and the plate-like portion move upward. The lid opening / closing structure is characterized in that the lid slide part moves in parallel with the rotation of the cam member and the plate-like part. An elastic member provided between the first slide member and the second slide member and biasing upward force to the second slide member;
When the rotation angle of the cam member is approximately 15 degrees, the elastic member rotates the cam member in a direction to open the lid, and the cam member is closed in the direction to close the lid by its own weight. The lid opening / closing structure according to claim 1, wherein a force to rotate coincides.   A second elastic member is provided between the guide member and the first slide member, and biases a force in a direction away from the guide member against the first slide member to push up the first slide member. The lid opening / closing structure according to claim 1, wherein the lid opening / closing structure is provided. A substantially plate-shaped lid provided at the opening of the storage is supported so as to be openable and closable between a closed position whose peripheral edge is along the inner peripheral surface of the opening and an open position where the inside of the storage is exposed. A lid opening and closing structure,
A guide member provided on the inner wall surface of the storage;
A first slide member provided so as to be movable in the vertical direction along the guide member;
A rotating shaft provided in the vicinity of the upper end of the first slide member;
A second slide member provided so as to be movable in the vertical direction along the first slide member;
A cam member pivotally supported on the pivot shaft, wherein the cam member contacts the second slide member at a position different from the position of the pivot shaft;
A plate-like portion rotatable around the rotation axis together with the cam member, and a plate-like portion fixed to the back surface of the lid;
An elastic member that is provided between the guide member and the first slide member, and biases the first slide member in a direction away from the guide member to push up the first slide member;
With
The guide member is provided with a lower protrusion and an upper protrusion provided to be movable in a direction substantially orthogonal to the moving direction of the first slide member,
A lower recess and an upper recess are formed on the side surface of the first slide member,
In the closed position, the lower protrusion fits into the lower recess, and the upper protrusion fits into the upper recess,
In the open position, the upper projection fits into the lower recess, the lid is arranged outside the opening, and the cam member is rotatable. A second elastic member provided between the first slide member and the second slide member and biasing an upward force to the second slide member;
When the rotation angle of the cam member is approximately 15 degrees, the second elastic member rotates the cam member in the direction to open the lid, and the cam in the direction to close the lid by the weight of the lid. The lid opening / closing structure according to claim 4, wherein a force for rotating the member coincides.

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