Opening / closing device of opening / closing body

Abstract

To provide an opening / closing device of an opening / closing body which can reduce the number of components to achieve simplification of the structure.SOLUTION: An opening / closing device 10 has: a base member 20; an opening / closing body 40 provided with an engaged part; a lock member 60 provided with a contact part 65 and an engaging part 72; and a biasing member 80 provided with a wound part 81, a first arm part 83, and a second arm part 85. The opening / closing body 40 has a first engaging part 57. The first arm part 83 is engaged with the first engaging part 57 and the opening / closing body 40 is biased in a direction such that the opening / closing body 40 is closed relative to an opening. The lock member 60 has a second engaging part 77. The second arm part 85 is engaged with the second engaging part 77 and the lock member 60 is biased so that the contact part 65 enters an insertion path along an insertion direction of an insertion member 5 into the opening 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an opening / closing device for an opening / closing body that opens and closes an opening of a fixed member having an opening into which an insertion member is inserted. [Background technology]

[0002] For example, when a charging gun (power supply gun) is inserted into the charging port (also called a charging socket, charging port, etc.) of an electric vehicle, electricity is supplied from an electricity supply facility (such as a power supply station) to the electric vehicle's battery, charging the battery.

[0003] Such a charging port is disposed inside a power supply opening formed in the vehicle body, and the power supply opening can be opened and closed by a lid. Furthermore, the charging port generally has an opening for normal charging and an opening for rapid charging. Furthermore, the opening for rapid charging is often further covered by an openable cover.

[0004] However, there have been cases where the lid of the power supply opening has been closed while the cover of the quick charging opening has been forgotten to be closed, which can result in damage to the cover of the quick charging opening.

[0005] Therefore, a structure exists in which, after the cover of the quick-charging opening is opened and charging is performed with the charging gun, the cover of the quick-charging opening automatically closes when the charging gun is removed from the quick-charging opening.

[0006] For example, the following Patent Document 1 describes a connection device for charging a vehicle battery device, which has a cover flap that is attached to an opening for quick charging so as to be able to be opened and closed, a biasing member that biases the cover flap to a closed state, a latch means that holds the cover flap in an open state and releases the held state when a charging gun is inserted, and a spring member that biases the latch means to the latched position. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] US11121496B2 Summary of the Invention [Problem to be solved by the invention]

[0008] In the case of the connection device of Patent Document 1 mentioned above, two biasing members were required: a biasing member that biases the cover flap to a closed state, and a spring member that biases the latch means to the latched position, resulting in a large number of parts and a complex structure.

[0009] SUMMARY OF THE PRESENT DISCLOSURE ... It is therefore an object of the present invention to provide an opening / closing device for an opening / closing body that can reduce the number of parts and simplify the structure. [Means for solving the problem]

[0010] In order to achieve the above object, the present invention provides an opening / closing device for an opening / closing body that opens and closes an opening of a fixed member provided with an opening into which an insertion member is inserted, the opening / closing device comprising: a base member fixed to the fixed member; an opening / closing body that is rotatably attached to the base member to open and close the opening and that has an engaged portion; a rotation support portion that is provided between the base member and the opening / closing body and that rotatably supports the opening / closing body relative to the base member; a locking member that is slidably attached to the base member in a direction intersecting the insertion direction of the insertion member into the opening and that has an abutment portion with which the insertion member abuts and an engagement portion that engages with the engaged portion of the opening / closing body to hold the opening / closing body in an open state when the opening / closing body is opened relative to the opening; a winding portion; a first arm portion extending from one end of the winding portion; and a second arm portion extending from the other end of the winding portion. the opening / closing body has a first engaging portion, the first arm portion is engaged with the first engaging portion, and the opening / closing body is urged in a direction to close relative to the opening; the locking member has a second engaging portion, the second arm portion is engaged with the second engaging portion, and the locking member is urged so that the abutment portion enters an insertion path along the insertion direction of the insertion member into the opening; a stopper portion is provided between the base member and the locking member to prevent the locking member from coming off the base member; when the insertion member is inserted into the opening and abuts against the abutment portion, the locking member slides against the urging force of the biasing member, and the engaging portion is released from engagement with the engaged portion, thereby entering a disengaged state. Effect of the Invention

[0011] According to the present invention, a single biasing member can simultaneously bias two members, the opening / closing body and the locking member, thereby reducing the number of parts and simplifying the structure. [Brief description of the drawings]

[0012] [Figure 1] 1 is an exploded perspective view showing an embodiment of an opening / closing device for an opening / closing body according to the present invention; [Diagram 2] FIG. [Diagram 3] 2 is an enlarged perspective view of an opening / closing body constituting an opening / closing device of the opening / closing body, seen from a direction different from that of FIG. 1. [Figure 4] 2 is an enlarged perspective view of a lock member constituting an opening / closing device of the opening / closing body, seen from a direction different from that in FIG. 1. [Diagram 5] 11 is a cross-sectional view of the opening / closing body with an opening / closing device fixed to a fixed member and with the opening / closing body closed relative to an opening of the fixed member. FIG. [Figure 6] FIG. 6 is an enlarged cross-sectional view of a main portion of FIG. 5. [Figure 7] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 8] FIG. 3 is a cross-sectional view taken along the line BB of FIG. 2. [Figure 9] 6 is a cross-sectional view showing a state in which the opening / closing body is open relative to the opening of the fixed member in the state shown in FIG. 5. [Figure 10] 10 is a cross-sectional view of the state in which an insertion member is inserted into an opening of a fixed member in the state shown in FIG. 9. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] (One embodiment of an opening / closing device for an opening / closing body) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an opening / closing device for an opening / closing body according to the present invention will be described with reference to the drawings.

[0014] As shown in Fig. 5, a fixed member 1 provided with a charging port for an electric vehicle or the like is provided with an opening 2 for normal charging and an opening 3 for rapid charging. An insertion member 5 such as a power supply gun is inserted into the openings 2 and 3. Furthermore, an opening / closing body 40 such as a lid, which is a member constituting an opening / closing body opening / closing device 10 of the present invention (hereinafter also simply referred to as "opening / closing device 10"), is attached to the opening 3 so as to be able to be opened and closed.

[0015] The opening / closing device 10 in this embodiment is, for example, a device for opening and closing the opening / closing body 40 with respect to an opening (here, the opening 3 for quick charging) of the fixed member 1. The plug-in member 5 is inserted into the openings 2 and 3 to charge a battery (not shown) of the electric vehicle, serving as a so-called charging gun.

[0016] The fixed member is not limited to a member having a charging port for an electric vehicle, but may be other members. The opening is also not limited to an opening for quick charging, but may be other parts.

[0017] As shown in Figures 1, 5 and 6, this opening / closing device 10 comprises a base member 20 fixed to a fixed member 1, an opening / closing body 40 rotatably attached to the base member 20 to open and close the opening 3 and having an engaged portion 56, a locking member 60 slidably attached to the base member 20 in a direction intersecting the insertion direction F1 (see Figure 9) of the insertion member 5 into the openings 2 and 3 and having an abutment portion 65 with which the insertion member 5 abuts and an engagement portion 72 that engages with the engaged portion 56 of the opening / closing body 40 when the opening / closing body 40 is opened relative to the opening 3 to hold the opening / closing body 40 in an open state, and a biasing member 80.

[0018] The biasing member 80 has a wound portion 81 formed by winding a metal wire, a first arm portion 83 extending from one end of the wound portion 81, and a second arm portion 85 extending from the other end of the wound portion 81.

[0019] As shown in FIG. 6, the fixed member 1 is formed with an accommodating portion 1a for accommodating and fixing the base member 20 of the opening / closing device 10, and also has an insertion groove 1b communicating with the opening 3 for inserting and ejecting the locking member 60 of the opening / closing device 10.

[0020] Also, as shown in FIG. 8, the opening / closing device 10 is provided with a rotational support portion (here, support hole 27 of base member 20 and shaft portions 50, 52 of opening / closing body 40) that is provided between the base member 20 and the opening / closing body 40 and supports the opening / closing body 40 rotatably relative to the base member 20.

[0021] Furthermore, the opening / closing body 40 has a first locking portion 57, and a first arm portion 83 is locked to this first locking portion 57, biasing the opening / closing body 40 in a direction to close the opening 3 (see arrow R1 in Figures 5 and 7).

[0022] In addition, the locking member 60 has a second engagement portion 76, and the second arm portion 85 is engaged with this second engagement portion 76 (see Figure 7), and the locking member 60 is biased so that the abutment portion 65 enters an insertion path F2 along the insertion direction F1 of the insertion member 5 into the opening 3 (hereinafter also simply referred to as the "insertion path F2 of the insertion member 5"; see Figure 9) (see arrow R2 in Figure 7).

[0023] As shown in FIG. 6, a stopper portion (here, a stopper groove portion 33 of the base member 20 and a stopper claw portion 67 of the locking member 60) is provided between the base member 20 and the locking member 60 to prevent the locking member 60 from coming off the base member 20.

[0024] Furthermore, as shown in FIG. 10, in this opening / closing device 10, when the insertion member 5 is inserted into the openings 2, 3 and the insertion member 5 abuts against the abutment portion 65, the locking member 60 slides relative to the base member 20 against the biasing force of the biasing member 80 (the biasing force from the second arm portion 85), and the engagement of the engaging portion 72 with the engaged portion 56 is released, resulting in a disengaged state.

[0025] Next, the base member 20 will be described in detail.

[0026] In this embodiment, the base member 20 has a pair of side walls 21, 23 extending a predetermined length and arranged parallel to each other, and a connecting portion 25 connecting the pair of side walls 21, 23, and forms a substantially U-shaped frame. One side wall 21 is arranged on the front side of the paper in Fig. 1, and the other side wall 23 is arranged on the back side of the paper in Fig. 1. The direction in which the side walls 21, 23 extend is referred to as "extension direction X."

[0027] Further, a circular support hole 27 is formed on one end side (left side of the paper surface in FIG. 1) of each of the side wall portions 21, 23 in the extension direction X. The shaft portions 50, 52 of the opening / closing body 40 are inserted into the pair of support holes 27, 27, respectively, and are supported for rotation. As a result, the opening / closing body 40 is attached to the base member 20 so as to be capable of rotation.

[0028] The direction in which the pair of side wall portions 21, 23 are arranged and the axes of the shaft portions 50, 52 face is defined as the "axial direction Y." Furthermore, the direction perpendicular to the extension direction X and perpendicular to the axial direction Y is the direction in which the locking member 60 slides back and forth relative to the base member 20, and this direction is defined as the "sliding direction Z." Note that the above-mentioned "extending direction X," "axial direction Y," and "sliding direction Z" have the same meanings for other members (the opening / closing body 40, the locking member 60, etc.) other than the base member 20.

[0029] Further, an extension portion 29 extends from the outer surface of the connecting portion 25, at the center in the axial direction Y and one end portion in the sliding direction Z (the lower end portion in the plane of FIG. 1). As shown in FIG. 6, a tip portion 29a of this extension portion 29 is removably inserted and fixed into a fixing recess 1c formed in the accommodation portion 1a of the fixed member 1, so that the base member 20 is removably fixed to the fixed member 1.

[0030] Furthermore, the pair of side walls 21, 23 are connected to each other at their intermediate portions in the extending direction X and at one end side in the sliding direction Z by a rotation guide portion 31. As shown in Fig. 6, the surface of this rotation guide portion 31 facing the one end side in the extending direction X is a curved guide surface 31a that fits the outer circumferential surface of the peripheral wall portion 47 that constitutes the shaft structure portion 43 of the opening / closing body 40.

[0031] The guide surface 31a guides the rotation of the shaft structure 43 when the opening / closing body 40 rotates. In addition, the pair of side walls 21, 23 are connected by the rotation guide portion 31, thereby increasing the rigidity of the entire base member.

[0032] 6, a stopper groove 33 is formed in the middle of the connecting part 25 in the axial direction Y, slightly forward of one end of the connecting part 25 in the sliding direction Z and the other end (the upper end of the paper in FIG. 6). A stopper claw 67 of the locking member 60 is slidably inserted into this stopper groove 33, and the stopper claw 67 engages with the other end face in the sliding direction Z (see FIG. 6), preventing the locking member 60 from coming off the base member 20.

[0033] 1 and 2, in the middle of the pair of side wall portions 21, 23 in the extending direction X, in a range from one end to the other end in the sliding direction Z, concave guide groove portions 35, 35 are formed along the sliding direction Z. Guide protrusions 69, 69 of the locking member 60 are slidably inserted into these guide groove portions 35, 35, and the sliding movement of the locking member 60 relative to the base member 20 is guided.

[0034] 1 and 2, a recess 37 is formed on the other end side of the connecting part 25 in the axial direction Y (the rear side of the paper in Figs. 1 and 2) in a predetermined range from the other end to one end side in the sliding direction Z. A lateral deviation regulating protrusion 78 of the locking member 60 is adapted to fit into this recess 37.

[0035] Next, the opening / closing body 40 will be described in detail.

[0036] As shown in Figures 1 and 2, the opening / closing body 40 in this embodiment has a cover body 41 having a generally long plate shape extending long in the axial direction Y and having four chamfered corners, an extension portion 42 extending from the middle of one long side 41a of the cover body 41 in the axial direction Y, and an axis structure portion 43 connected to the cover body 41 via the extension portion 42.

[0037] As shown in Figure 1, the shaft structure portion 43 has a first wall portion 45 extending along the extension direction of the extension portion 42, a second wall portion 46 extending diagonally outward with respect to the extension direction of the extension portion 42, a peripheral wall portion 47 connecting the extension direction tip ends of the first wall portion 45 and the second wall portion 46 to each other and having a curved outer circumferential surface, and a side wall portion 48 connecting one end portion of each wall portion 45, 46, 47 in the axial direction Y (the front side of the paper in Figure 1) to each other.

[0038] A generally cylindrical shaft portion 50 protrudes from the outer surface of the side wall portion 48. The shaft portion 50 is inserted into the support hole 27 of the side wall portion 21 of the base member 20.

[0039] As shown in FIG. 3, the other end side of the shaft structure 43 in the axial direction Y has a shape that is cut out by a cutout portion 49, and a recessed accommodation recess 51 is formed in which the winding portion 81 of the urging member 80 is accommodated.

[0040] 8, a generally cylindrical shaft portion 52 protrudes from the bottom surface 51a of the accommodating recess 51 so as to be coaxial with the shaft portion 50. The shaft portion 52 is inserted into the support hole 27 of the side wall portion 23 of the base member 20. The shaft portion 52 is inserted into the inside of the winding portion 81 accommodated in the accommodating recess 51, and the winding portion 81 is fitted onto the shaft portion 52.

[0041] 8, the pair of shafts 50, 52 are inserted into the pair of support holes 27, 27 and supported for rotation, thereby allowing the opening / closing body 40 to be rotatably attached to the base member 20. That is, in this embodiment, the pair of shafts 50, 52 of the opening / closing body 40 and the pair of support holes 27, 27 of the base member 20 form the "rotation support portion" of the present invention.

[0042] Also, as shown in Figures 1, 3 and 6, a first groove 54 and a second groove 55 each having a groove-like shape are formed in the range extending from one end in the axial direction Y of the shaft structure portion 43 to the front side of the other end (the front side of the other end in the axial direction Y of the peripheral wall portion 47), and an engaged portion 56 is provided via these grooves 54, 55.

[0043] As shown in Figure 6, the first groove 54 is formed from a circumferential midpoint of the peripheral wall portion 47 to a position slightly beyond the axis C of the shaft portions 50, 52, and the second groove 55 is formed in a range from the other circumferential end side of the first groove 54 to the tip end in the extension direction of the first wall portion 45.

[0044] The engaged portion 56 has an apex 56a located on the outer peripheral edge of the peripheral wall portion 47, a tapered surface 56b provided on the other circumferential end side of the first groove 54 and protruding gradually higher toward the first wall portion 45, and an engaged surface 56c parallel to the surface direction of the outer surface of the first wall portion 45. One circumferential end of the first groove 54 (the end farthest from the engaged portion 56) is referred to as an end 54a.

[0045] Then, as shown in FIG. 9, the engagement surface 74c of the engagement portion 72 of the locking member 60 engages with the engagement surface 56c of the engagement portion 56, thereby maintaining the opening / closing body 40 in an open state relative to the opening 3 against the biasing force of the biasing member 80 (the biasing force from the first arm portion 83).

[0046] Furthermore, as shown in Figure 3, a first engagement portion 57 having a slit groove shape is cut out at a position adjacent to the first wall portion 45 of the peripheral wall portion 47 that constitutes the shaft structure portion 43, and is formed from the other end face in the axial direction Y by a predetermined length toward one end side in the axial direction Y.

[0047] The first arm 83 of the biasing member 80 is inserted into and engaged with this first engagement portion 57 (see Figures 3 and 7), so that the opening / closing body 40 is biased in the closing direction relative to the opening 3, as shown by arrow R1 in Figure 5.

[0048] 3, a shallow recessed arm insertion groove 58 is formed in the boundary between the tip end of the second wall portion 46 in the extending direction and the other end of the peripheral wall portion 47 in the axial direction Y. The second arm portion 85 of the biasing member 80 is inserted from this arm insertion groove 58 (see FIGS. 3 and 7).

[0049] In addition, during the period from when the opening / closing body 40 is closed relative to the opening 3 of the fixed member 1 as shown in Fig. 6 to when the opening / closing body 40 is opened relative to the opening 3 of the fixed member 1 as shown in Fig. 9, the engaging protrusion 74 of the engaging portion 72 of the locking member 60 moves within the first groove 54. At this time, the engaging protrusion 74 moves while approaching or sliding against the bottom surface of the first groove 54.

[0050] Also, as shown in FIG. 6, when the opening / closing body 40 is closed relative to the opening 3, the engagement protrusion 74 of the locking member 60 is spaced a predetermined gap from the end 55a of the second groove 55 (the engagement surface 74c of the engagement protrusion 74 is spaced from the end 55a of the second groove 55).

[0051] Next, the locking member 60 will be described in detail.

[0052] As shown in Figures 1, 4 and 6, the locking member 60 in this embodiment has a front wall portion 61, a rear wall portion 62 extending longer than the front wall portion 61 and arranged opposite the front wall portion 61 so as to be parallel to the front wall portion 61, a pair of side wall portions 63, 64 connecting both wall portions 61, 62 to each other, and an abutment portion 65 extending obliquely outward from the other end of the front wall portion 61 in the sliding direction Z toward the other end of the rear wall portion 62 in the sliding direction Z and connecting the pair of side wall portions 63, 64 to each other, and has a generally rectangular block shape having an inclined surface (abutment portion 65).

[0053] One side wall portion 63 is disposed on the front side of the paper in FIG. 1, and the other side wall portion 64 is disposed on the back side of the paper in FIG.

[0054] The contact portion 65 is inclined at a predetermined angle with respect to the sliding direction Z of the locking member 60. Furthermore, a tip surface 65a of the contact portion 65 is flat and extends perpendicular to the sliding direction Z. When the insertion member 5 is inserted into the opening 3, this tip surface 65a comes into contact with the outer circumferential surface of the insertion member 5 (see FIG. 10 ), and restricts the sliding movement of the locking member 60 toward the other end side in the sliding direction Z.

[0055] 9, the contact portion 65 is adapted to enter the insertion path F2 of the insertion member 5. Then, the tip of the insertion member 5 comes into contact with the contact portion 65, and the contact portion 65 is pressed, so that the locking member 60 slides toward one end in the sliding direction Z against the biasing force of the biasing member 80 (the biasing force from the second arm portion 85) (sliding in a direction retracted relative to the base member 20).

[0056] 1, a flexible stopper claw 67 is formed through a U-shaped slit 67a at a location near one end of the rear wall 62 in the axial direction Y (near the side wall 63) and near one end of the sliding direction Z. The stopper claw 67 has a fixed end disposed on the one end side in the sliding direction Z and a free end disposed on the other end side in the sliding direction Z.

[0057] 6, the stopper claw portion 67 engages with the other end surface in the sliding direction Z of the stopper groove portion 33 of the base member 20, thereby preventing the locking member 60 biased by the biasing member 80 from coming off from the base member 20. That is, in this embodiment, the stopper claw portion 67 of the locking member 60 and the stopper groove portion 33 of the base member 20 form the "stopper portion" of the present invention.

[0058] Further, guide ridges 69, 69 extending in the sliding direction Z are provided on the outer surfaces of the pair of side wall portions 63, 64. The pair of guide ridges 69, 69 are slidably inserted into the corresponding pair of guide groove portions 35, 35 of the base member 20 to guide the sliding movement of the locking member 60 relative to the base member 20. That is, in this embodiment, the pair of guide ridges 69, 69 of the locking member 60 and the pair of guide groove portions 35, 35 of the base member 20 form the "guide portion" of the present invention.

[0059] As described above, the pair of guide protrusions 69, 69 are inserted into the pair of guide groove portions 35, 35 of the base member 20, and the stopper claw portion 67 engages with the other end face of the stopper groove portion 33, whereby the locking member 60 is attached to the base member 20 in a slidable manner in a direction perpendicular to the insertion direction F1 of the insertion member 5 into the openings 2, 3 and in a non-removable state.

[0060] As shown in FIG. 4, a pair of parallel slits 71, 71 are formed from one end edge of the front wall portion 61 in the axial direction Y (near the side wall portion 63) in the sliding direction Z, and a flexibly deformable engagement portion 72 is provided through the pair of slits 71, 71.

[0061] This engagement portion 72 has a flexible extension portion 73 whose fixed end is fixed to the other end side in the sliding direction Z and whose free end extends toward one end side in the sliding direction Z, and an engagement protrusion 74 protruding from the outer surface side of the extension direction tip of this extension portion 73.

[0062] The engagement protrusion 74 has an apex 74a that protrudes the highest (has the largest amount of protrusion) from the outer surface of the extension portion 73, a tapered surface 74b where the height of the apex 74a gradually decreases toward the tip of the extension direction of the extension portion 73, and an engagement surface 74c that is provided on the opposite side of the tapered surface 74b and is arranged perpendicular to the extension direction of the extension portion 73.

[0063] As shown in Figure 9, the engagement surface 74c of the engagement protrusion 74 of the engagement portion 72 engages with the engagement surface 56c of the engagement portion 56 of the opening / closing body 40, thereby maintaining the opening / closing body 40 in an open state relative to the opening 3 against the biasing force from the first arm portion 83 of the biasing member 80.

[0064] Also, Figure 10 shows a disengaged state in which the engagement of the engaging portion 72 with the engaged portion 56 is released, and in this disengaged state, the engaging portion 72 and the engaged portion 56 are configured to move away from each other in the insertion direction F1 of the insertion member 5 into the opening 3.

[0065] That is, as shown in FIG. 10, in the above-mentioned disengaged state, the top 74a of the engaging portion 72 on the locking member 60 side and the top 56a of the engaged portion 56 on the opening / closing body 40 side are spaced apart a predetermined length in the insertion direction F1 of the insertion member 5 into the opening 3.

[0066] 8, the locking member 60 and the wound portion 81 of the urging member 80 are arranged so as to overlap in the axial direction Y of the wound portion 81. That is, as shown in FIG. 8, the entire range of the wound portion 81 of the urging member 80 in the axial direction Y is arranged so as to overlap (or be said to be wrapped) with the locking member 60 in the axial direction Y.

[0067] 4, a second locking portion 77 having a slit groove shape is formed on the other end side of the front wall portion 61 and the rear wall portion 62 in the axial direction Y from one end edge portion in the sliding direction Z. As shown in FIG 7, the second locking portion 77 has a groove length on the rear wall portion 62 side that is shorter than the groove length on the front wall portion 61 side.

[0068] Furthermore, the other end of the second locking portion 77 in the sliding direction Z on the rear wall portion 62 side forms a locking surface 77a. Then, as shown in Fig. 7, the second arm portion 85 of the urging member 80 is inserted into the second locking portion 77, and the second arm portion 85 is locked to the locking surface 77a. As a result, the locking member 60 is urged so that the abutment portion 65 enters the insertion path F2 of the insertion member 5 (see arrow R2).

[0069] Meanwhile, a rotational biasing force generated from the second arm portion 85 of the biasing member 80 acts on the locking surface 77a of the second locking portion 77. In this embodiment, since there is a guide portion consisting of a pair of guide ridges 69, 69 of the locking member 60 and a pair of guide groove portions 35, 35 of the base member 20, the above-mentioned rotational biasing force generated from the second arm portion 85 is converted so as to be usable for the sliding movement of the locking member 60.

[0070] As shown in FIG. 4, the inner surface of one end of the second locking portion 77 in the sliding direction Z forms a tapered surface 77b that opens out in an approximately V-shape, making it easier for the second arm portion 85 to be inserted into the second locking portion 77.

[0071] 1, a lateral displacement restriction projection 78 having a protruding shape is provided to protrude from the other side edge of the second locking portion 77 of the rear wall portion 62. The tip end of the second arm portion 85 of the urging member 80 inserted into the second locking portion 77 comes into contact with this lateral displacement restriction projection 78, thereby restricting the lateral displacement of the second arm portion 85.

[0072] (Modification) The shapes, structures, layouts, and the like of the base member, the opening / closing body, and the like constituting the opening / closing device for the opening / closing body in the present invention are not limited to the above-mentioned embodiments.

[0073] For example, the base member may have an overall shape of a box or a cylinder with a bottom. The lid of the opening / closing body may be a circular plate or an elliptical plate. Furthermore, an axis structure may be provided on the inner surface side of the lid (the surface side facing the opening). The locking member may have a shape such as a columnar shape, a cylindrical shape, a square pillar shape, or a square tube shape, as long as it has at least a shape having an abutment portion.

[0074] As the pivotal support portion, an axis portion may be provided on the base member side, and a support hole for pivotally supporting the axis portion may be provided on the opening / closing body side, or support holes may be provided on both the base member and the opening / closing body, and a separate shaft may be inserted and supported through these support holes.

[0075] The stopper portion may have a structure in which a stopper claw is provided on the base member side and a stopper groove for engaging and disengaging with the stopper claw is provided on the locking member side. Furthermore, the stopper claw and the stopper groove may be provided on the side wall or front wall of the locking member, or on predetermined locations of the base member corresponding to those walls.

[0076] The guide portion may have a structure in which a protrusion is provided on the base member side and a guide groove portion into which the protrusion is slidably inserted is provided on the locking member side. Furthermore, the protrusion and the slide groove portion may be provided on the front wall portion and the rear wall portion of the locking member, or on predetermined portions of the base member corresponding to those walls.

[0077] (Action and effect) Next, the effects of the opening and closing device 10 having the above structure will be described.

[0078] 5, from a state in which the opening 3 of the fixed member 1 is closed by the opening / closing body 40, the other long side 41b of the lid body 41 is grasped and the opening / closing body 40 is rotated in a direction to open the opening 3 against the biasing force of the biasing member 80 (the biasing force applied from the first arm portion 83). Then, the shaft structure portion 43 of the opening / closing body 40 rotates while the engaging protrusion 74 of the locking member 60 moves within the first recessed groove 54 of the opening / closing body 40.

[0079] Then, the tapered surface 56b of the engaged portion 56 presses against the tapered surface 74b of the engaging protrusion 74 of the engaging portion 72, causing the extension portion 73 of the engaging portion 72 to flex slightly and deform. After that, when the top 56a of the engaged portion 56 passes the top 74a of the engaging protrusion 74, the extension portion 73 elastically returns to its original shape and the engaging surface 74c of the engaging protrusion 74 and the engaged surface 56c of the engaged portion 56 engage with each other.

[0080] As a result, as shown in FIG. 9, the opening / closing body 40 is held in an open state relative to the opening 3 against the biasing force from the first arm portion 83 of the biasing member 80.

[0081] Next, the insertion member 5 is inserted into the openings 2, 3 of the fixed member 1 along the insertion direction F1 until the insertion member 5 is inserted into the openings 2, 3 to a predetermined depth as shown in FIG.

[0082] Then, the tip of the insertion member 5 abuts against the abutment portion 65 of the locking member 60, and the locking member 60 is pushed down against the biasing force from the second arm portion 85 of the biasing member 80, and the locking member 60 slides toward one end side in the sliding direction Z relative to the base member 20, resulting in the abutment portion 65 disengaging from the insertion path F2 of the insertion member 5.

[0083] As a result, the engagement between the engaging surface 74c of the engaging protrusion 74 and the engaged surface 56c of the engaged portion 56 is released, and the opening / closing body 40 rotates due to the biasing force from the first arm portion 83 of the biasing member 80. As a result, as shown in Fig. 10, the portion on the other long side 41b side of the cover body 41 of the opening / closing body 40 abuts against the outer circumferential surface of the insertion member 5 while being subjected to the biasing force from the first arm portion 83 of the biasing member 80. This causes the opening / closing body 40 to be held in a half-open state.

[0084] Furthermore, the tip surface 65a of the contact portion 65 contacts the outer circumferential surface of the insertion member 5, so that the sliding movement of the lock member 60 is restricted.

[0085] Then, when a predetermined process or operation, such as a charging process using the plug-in member 5, is completed, the plug-in member 5 is pulled out from the openings 2, 3 of the fixed member 1.

[0086] Then, with a biasing force applied from the first arm 83 of the biasing member 80 via the first engagement portion 57, the opening / closing body 40 rotates to close the opening 3 again, and, with a biasing force applied from the second arm 85 of the biasing member 80 via the second engagement portion 77, the locking member 60 slides toward the other end side in the sliding direction Z relative to the base member 20, and its abutment portion 65 again enters the insertion path F2 of the insertion member 5, returning to the state shown in Figures 5 and 6.

[0087] In this opening / closing device 10, the first arm 83 of the biasing member 80 is engaged with the first engagement portion 57 of the opening / closing body 40, thereby biasing the opening / closing body 40 in the direction of closing the opening 3, and the second arm 85 of the biasing member 80 is engaged with the second engagement portion 77 of the locking member 60, thereby biasing the locking member 60 so that the abutment portion 65 enters the insertion path F2 of the insertion member 5.

[0088] In other words, since one biasing member 80 can bias two members, the opening / closing body 40 and the locking member 60, simultaneously, the number of parts of the opening / closing device 10 can be reduced, and the structure of the opening / closing device 10 can be simplified.

[0089] In this embodiment, guide groove portion 35 is provided on the base member 20 side, and guide ridge 69 is provided on the locking member 60 side, which constitute a guide portion for sliding locking member 60 relative to base member 20, and stopper groove portion 33 is provided on the base member 20 side, and stopper claw portion 67 is provided on the locking member 60 side, which constitute a stopper portion that holds locking member 60 against base member 20 to prevent it from coming off.

[0090] That is, in this opening and closing device 10, the locking member 60 is configured to be slidable relative to the base member 20, and each of the base member 20 and the locking member 60, which are separate components, is provided with the respective portions constituting the guide portion (guide groove portion 35, guide protrusion 69) and the respective portions constituting the stopper portion (stopper groove portion 33, stopper claw portion 67).

[0091] This provides the advantage that it is easy to provide each of the parts constituting the guide portion and each of the parts constituting the stopper portion on each of the base member 20 and the locking member 60 (if the locking member does not slide relative to the base member, it may be difficult to provide each of the guide portion and the stopper portion). Also, a structure for preventing the locking member 60 from coming off the base member 20 can be provided relatively easily, and it is easy to provide a structure that makes it difficult for the locking member 60 to come off the base member 20.

[0092] In addition, in this embodiment, in the disengaged state shown in Figure 10 in which the engagement of the engaging portion 72 with the engaged portion 56 is released, the engaging portion 72 and the engaged portion 56 are configured to move away from each other in the insertion direction F1 of the insertion member 5 into the opening 3.

[0093] According to the above embodiment, when the insertion member 5 is inserted into the opening 3 and the engagement state between the engaging portion 72 and the engaged portion 56 is released, and then the insertion member 5 is pulled out from the opening 3, as described above, the locking member 60 slides relative to the base member 20 so that the abutment portion 65 re-enters the insertion path F2 of the insertion member 5. At that time, however, it is possible to prevent any hindrance to the sliding movement of the locking member 60.

[0094] In other words, interference between the engaging portion 72 and the engaged portion 56, such as the top 74a of the engaging protrusion 74 of the engaging portion 72 getting caught on the top 56a of the engaged portion 56, is prevented, so that the locking member 60 can be slid reliably relative to the base member 20.

[0095] Furthermore, when the insertion member 5 is pulled out of the opening 3, the opening / closing body 40 rotates in the direction of closing the opening 3 due to the biasing force from the first arm 83 of the biasing member 80, but at that time, it is possible to prevent the rotational movement of the opening / closing body 40 from being hindered. That is, interference between the engaging portion 72 and the engaged portion 56, such as the top 74a of the engaging protrusion 74 of the engaging portion 72 getting caught on the top 56a of the engaged portion 56, is prevented, so that the opening / closing body 40 can be securely closed relative to the opening 3.

[0096] In addition, in this embodiment, a guide portion that guides the sliding movement of the locking member 60 is provided between the base member 20 and the locking member 60 (in this embodiment, a pair of guide ridges 69, 69 of the locking member 60 and a pair of guide groove portions 35, 35 of the base member 20).

[0097] According to the above embodiment, a guide portion that guides the sliding movement of the locking member 60 is provided between the base member 20 and the locking member 60. Therefore, the rotational biasing force generated by the second arm portion 85 of the biasing member 80 can be converted so as to be usable for the sliding movement of the locking member 60, thereby ensuring the sliding movement of the locking member 60 relative to the base member 20.

[0098] Furthermore, in this embodiment, the engagement portion 72 of the locking member 60 is formed to be capable of bending and deforming via the slits 71, 71.

[0099] According to the above aspect, the engagement portion 72 of the locking member 60 (here, the extension portion 73 constituting the engagement portion 72) is formed to be capable of flexibly deforming through the slits 71, 71, thereby making it easier to engage and disengage the engagement portion 72 of the locking member 60 with the engaged portion 56 of the opening / closing body 40.

[0100] As a result, it becomes easier to rotate the opening / closing body 40 from a state in which the opening 3 is closed to a state in which it is open, i.e., the engaging portion 72 and the engaged portion 56 can easily engage and disengage, making it easier to transition the opening / closing body 40 from a state in which the opening 3 is closed to a state in which it is open.

[0101] In this embodiment, the locking member 60 and the wound portion 81 of the urging member 80 are arranged so as to overlap (wrap) in the axial direction Y of the wound portion 81, as shown in FIG.

[0102] According to the above aspect, the locking member 60 and the wound portion 81 of the biasing member 80 are arranged so as to overlap in the axial direction Y of the wound portion 81. Therefore, the locking member 60 and the biasing member 80 can be made to have a compact structure, and the biasing force from the second arm portion 85 of the biasing member 80 can be stably applied to the locking member 60.

[0103] It should be noted that the present invention is not limited to the above-described embodiment, and various modified embodiments are possible within the scope of the gist of the present invention, and such embodiments are also included in the scope of the present invention. [Explanation of symbols]

[0104] 1 Fixed member 3 Opening 5 Insertion parts 10 Opening and closing device for opening and closing body (opening and closing device) 20 Base material 33 Stopper groove 35 Guide groove 40 Opening and closing body 43 Shaft structure 50,52 Shaft 56 Engaged part 57 First locking part 60 Locking member 65 Contact part 67 Stopper claw 69 Guide rib 71 Slit 72 Engagement part 77 Second locking part 80 biasing member 81 Winding section 83 1st arm 85 2nd arm

Claims

1. An opening / closing device for an opening / closing body that opens and closes an opening of a fixed member having an opening into which an insertion member is inserted, comprising: A base member fixed to the fixed member; an opening / closing body that is rotatably attached to the base member to open and close the opening and that has an engaged portion; a rotation support portion provided between the base member and the opening / closing body and configured to support the opening / closing body so as to be rotatable relative to the base member; a locking member that is slidably attached to the base member in a direction intersecting the insertion direction of the insertion member into the opening, and that has an abutment portion with which the insertion member abuts, and an engagement portion that engages with the engaged portion of the opening / closing body to hold the opening / closing body in an open state when the opening / closing body is opened relative to the opening; a biasing member including a winding portion, a first arm portion extending from one end of the winding portion, and a second arm portion extending from the other end of the winding portion, the opening / closing body has a first locking portion, the first arm portion is locked to the first locking portion, and the opening / closing body is biased in a direction to close with respect to the opening portion, the locking member has a second engaging portion, and the second arm portion is engaged with the second engaging portion, and the locking member is biased so that the abutment portion enters an insertion path along an insertion direction of the insertion member into the opening, a stopper portion is provided between the base member and the locking member to prevent the locking member from coming off the base member, An opening and closing device for an opening and closing body, characterized in that when the insertion member is inserted into the opening and the insertion member abuts against the abutment portion, the locking member slides against the biasing force of the biasing member, and the engagement of the engaging portion with the engaged portion is released, resulting in a disengaged state.

2. 2. The opening and closing device for an opening and closing body according to claim 1, wherein in the disengaged state, the engaging portion and the engaged portion are configured to move apart in a direction in which the insertion member is inserted into the opening.

3. 3. The opening / closing device for an opening / closing body according to claim 1, further comprising a guide portion provided between the base member and the locking member for guiding a sliding movement of the locking member.

4. 3. The opening and closing device for an opening and closing body according to claim 1, wherein the engaging portion of the locking member is formed to be flexible and deformable via a slit.

5. 3. The opening / closing device for an opening / closing body according to claim 1, wherein the locking member and the wound portion of the urging member are arranged to overlap in an axial direction of the wound portion.

Images