Advancing and retracting device

Abstract

To provide a reciprocation device which can prevent lids from lifting off a vehicle body.SOLUTION: A reciprocation device includes a reciprocating member with one end housed in a case and the other end protruding from the case, advances from the inside of the case to the outside, and retreats from the outside of the case to the inside, a moving member that moves between a first position where the reciprocating member is allowed to advance due to the energizing force of an energizing member and a second position where the reciprocating member is stopped from advancing, an engaged part that moves together with the reciprocating member, a pressing force transmission member that moves from a forward position to a retreating position by pressing force when the lid is closed and an engaging part that moves together with the pressing force transmission member. The engaging part and the engaged part are in an engaged state so that the energizing force of the energizing member is applied to the pressing force transmission member when the reciprocating member advances, whereas in a disengaged state so as to prevent the energizing force of the energizing member from being applied to the pressing force transmission member when the pressing force transmission member is in a retracted position.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an advance / retreat moving device. [Background technology]

[0002] 2. Description of the Related Art Lid opening and closing devices are known that open and close a lid (fuel lid) that is a cover that closes a fuel filling opening in a vehicle equipped with an internal combustion engine, or a lid that is a lid that closes a power receiving opening in a vehicle equipped with a battery.

[0003] For example, a lid opening and closing device has been disclosed that includes a case attached to a fuel fill opening, a reciprocating member that moves back and forth relative to the case to open and close the lid, a restricting member that restricts the reciprocating movement of the reciprocating member, a pressing force transmission member for activating a detection switch that detects the opening and closing of the lid, and a biasing member (see, for example, Patent Document 1).

[0004] The pressing force transmission member is biased in a protruding direction (the advancing direction of the advancing / retracting member) by the biasing force of the biasing member. When the lid moves from the open position to the closed position, the pressing force transmission member is pressed by the lid and moves in the retreating direction against the biasing force of the biasing member.

[0005] When the retractable member is pressed by the lid and moves to the retracted position, the restricting member engages with the retractable member to restrict the retractable movement of the retractable member. When the lid is moved to the closed position, the lid locking portion of the retractable member is locked with the lid engaged portion of the lid, thereby locking the lid. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2020-122335 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the lid opening and closing device described in the above Patent Document 1, when the lid is moved to the closed position, the pressing force transmission member is urged in the protruding direction (the advancing direction of the advancing and retreating member) by the urging force of the urging member, so the lid is pushed from the closed position to the open position by the pressing force transmission member. Here, if there is a gap between each member (for example, a gap between the lid locking portion and the lid locked portion), the lid pushed by the pressing force transmission member moves from the closed position to the open position by the gap. If the amount of movement of the lid is large, the lifting of the lid from the vehicle body becomes noticeable, which impairs the aesthetic appearance. In addition, a gap is created between the lid that has lifted from the vehicle body and the vehicle body, which allows tools to be inserted, which also poses a crime prevention problem.

[0008] An object of the present invention is to provide an advance / retreat moving device capable of preventing a lid from floating up from a vehicle body. [Means for solving the problem]

[0009] The forward and backward moving device of the present invention is Case and an advancing / retreating member having one end housed in the case and the other end protruding from the case, and adapted to advance from the inside of the case toward the outside and to retreat from the outside of the case toward the inside; A biasing member that biases the advancing and retreating member; a movable member that is housed in the case and moves between a first position that allows the advancement of the retractable member by the biasing force of the biasing member and a second position that stops the advancement of the retractable member; an engaged portion that moves together with the advancing and retreating member inside the case; a pressing force transmission member that moves from a forward position to a backward position by a pressing force applied when the lid is closed; an engaging portion that moves together with the pressing force transmission member inside the case; Equipped with The engaging portion and the engaged portion are in an engaged state so that the biasing force of the biasing member is applied to the pressing force transmission member when the advancing / retreating member advances, and are in a disengaged state so that the biasing force of the biasing member is not applied to the pressing force transmission member when the pressing force transmission member is positioned in the retracted position. Effect of the Invention

[0010] According to the present invention, it is possible to obtain an advancing and retreating moving device capable of preventing a lid from floating up from a vehicle body. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing a configuration example of an opening and closing device equipped with an advance / retract movement device according to an embodiment of the present invention; [Diagram 2] FIG. 1 is a diagram showing a configuration example of an advance / retreat movement device according to an embodiment of the present invention; [Diagram 3] FIG. 1 is an enlarged view of a portion of the advance / retreat device when the drive unit is driven. [Figure 4] FIG. 13 is a diagram showing a state of the advancing and retreating movement device when the fuel lid is pushed in. [Diagram 5] Cross section of line AA in Figure 9 [Figure 6] FIG. 5 is an enlarged view of a portion of the forward / backward moving device shown in FIG. [Figure 7] FIG. 13 is a diagram showing a state of the advancing and retreating movement device when the fuel lid is slightly pushed in. [Figure 8] FIG. 13 is a diagram showing a state of the advancing and retreating movement device when the fuel lid is further pushed in. [Figure 9] FIG. 13 is a diagram showing a state of the advancing and retreating movement device when the pushing operation of the fuel lid is completed; [Figure 10] FIG. 10 is an enlarged view of a portion of the forward / backward moving device shown in FIG. [Figure 11] FIG. 13 is a diagram showing a state of the advancing and retreating movement device when the fuel lid is opened. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0013] [Configuration of the switching device 100] FIG. 1 is a diagram showing a configuration example of an opening and closing device 100 equipped with an advance / retract movement device 1 according to an embodiment of the present invention, and FIG. 2 is a diagram showing a configuration example of the advance / retract movement device 1 according to the embodiment of the present invention.

[0014] The opening and closing device 100 is a device that opens and closes a fuel lid 120, which is a lid for closing a fuel filling opening 2a provided in a vehicle body 2. The opening and closing device 100 includes an advancing and retreating movement device 1 according to an embodiment of the present invention. The configuration of the advancing and retreating movement device 1 will be described in detail later.

[0015] The opening and closing device 100 includes a main body 110 attached to a fuel supply opening 2a provided in a vehicle body 2, a fuel lid 120, a hinge 130 that rotatably supports the fuel lid 120, and an advancing and retreating movement device 1.

[0016] The main body 110 constitutes, for example, a fuel supply chamber surrounding a fuel supply pipe. A fuel supply port formed at the tip of the fuel supply pipe is closed by a screw cap 160.

[0017] The advancing / retreating member 11 is a member for opening the fuel lid 120. The advancing / retreating member 11 has a lid locking portion 12 at its tip.

[0018] In the opening and closing device 100 configured in this manner, when the fuel lid 120 is closed, the lid locked portion 140 provided on the fuel lid 120 comes into contact with the advancing and retracting member 11. At this time, the lid locking portion 12 provided on the advancing and retracting member 11 is inserted into the inside of the lid locked portion 140.

[0019] In this state, when the fuel lid 120 is pushed in, the advancing / retreating member 11 retreats to the inside of the vehicle body 2. Retreating means that the advancing / retreating member 11 moves from the outside of a case to the inside of the case, which will be described later.

[0020] Furthermore, when the advancing / retreating member 11 retracts, the lid locking portion 12 rotates and is locked to the lid locked portion 140. When the lid locking portion 12 is locked to the lid locked portion 140, the advancing / retreating member 11 is disposed in the retracted position.

[0021] The retracted position is a stop position of the retracted advancing / retracting member 11. The retracted position is also a position where the fuel lid 120 is held in a closed state.

[0022] In this state, a restricting member 90 (described later) is inserted into a recess of the advancing / retreating member side member 21 (described later), thereby restricting the movement of the advancing / retreating member 11 held by the advancing / retreating member side member 21, i.e., locking the advancing / retreating member 11. As a result, the fuel lid 120 is locked while closing the fuel filler opening 2a.

[0023] When the advancing / retreating member 11 is released from its locked state by the restricting member 90 in order to open the fuel lid 120, the advancing / retreating member 11 advances toward the outside of the vehicle body 2. The advancement means that the advancing / retreating member 11 moves from the inside of a case to the outside of the case, which will be described later.

[0024] At this time, the lid locking portion 12 provided on the advancing / retreating member 11 rotates, and the lid locking portion 12 is released from the lid locked portion 140. As a result, the lid locking portion 12 comes out of the lid locked portion 140, and the fuel lid 120 can be opened.

[0025] The pressing force transmitting portion 80 has a restricting portion, a guiding portion, etc. The restricting portion, the guiding portion, etc. will be described in detail later.

[0026] [Configuration of the forward and backward movement device 1] Next, the configuration of the advance / retreat movement device 1 will be described with reference to FIGS.

[0027] 2 is a device that moves an advancing / retreating member 11 forward or backward relative to a case 4. The advancing / retreating device 1 includes a case 4, an advancing / retreating member 11, an advancing / retreating member side member 21, a biasing member 27, a moving member 31, a driving unit 60, and a regulating unit 83.

[0028] [Advance / retraction member 11] The advancing / retreating member 11 is a columnar or cylindrical member that is movable back and forth relative to the case 4. The advancing / retreating member 11 is inserted into a through hole (not shown) formed in the front wall portion 40a.

[0029] The advancing / retreating member 11 moves between an advanced position where it is advanced relative to the case 4 and a retracted position where it is retracted relative to the case 4. The advanced position is a stop position of the advanced advancing / retreating member 11. The advanced position is also the position of the advancing / retreating member 11 when the lid locking portion 12 is released from the lid locked portion 140 shown in FIG.

[0030] [Advance / retreat member side member 21] The advancing / retreating member side member 21 is fitted to the advancing / retreating member 11 so as to be rotatable relative to the advancing / retreating member 11, and moves together with the advancing / retreating member 11. The advancing / retreating member side member 21 includes a regulating member 21a, an engaged member 21b, and an engaged member 21c (corresponding to the "engaged portion" of the present invention).

[0031] [Regulation member 21a] The regulating member 21a moves within the case 4 while rotatably holding the advancing / retreating member 11, thereby regulating the advancing / retreating member 11 between an advanced position and a retreated position.

[0032] The restricting member 21a is disposed in a region between a front wall portion 40a and a rear wall portion 40b of the case 4. The restricting member 21a restricts the forward movement of the advancing / retreating member 11 by contacting the front wall portion 40a. The restricting member 21a restricts the backward movement of the advancing / retreating member 11 by contacting the rear wall portion 40b.

[0033] [Engaged member 21b] The engaged member 21b restricts the forward movement of the restricting member 21a by being engaged with the restricting member 90. For this reason, the engaged member 21b is formed with a recess into which the restricting member 90 engages. The details of the recess will be described later.

[0034] The engaged member 21b extends from the regulating member 21a toward the rear side wall portion 40b. The engaged member 21b is provided adjacent to the regulating member 83c and parallel to the regulating member 83c.

[0035] [Engaged member 21c] The engaged member 21c extends from the regulating member 21a toward the internal member 83b. In FIG. 2, if the direction in which the advancing / retracting member 11 moves from the retreated position toward the advanced position is the upward direction, and the direction in which the advancing / retracting member 11 moves from the advanced position toward the retreated position is the downward direction, the engaged member 21c is disposed at a position lower than the engaging member 83e (corresponding to the "engaging portion" of the present invention) extending from the internal member 83b toward the regulating member 21a. The engaged member 21c shown in FIG. 2 is engaged with the engaging member 83e. That is, no vertical gap is generated between the engaged member 21c and the engaging member 83e. In this state, the engaged member 21c moves downward relative to the engaging member 83e, so that a vertical gap is generated between the engaged member 21c and the engaging member 83e, and the engaged member 21c and the engaging member 83e are in a disengaged state from each other. On the other hand, even if the engaged member 21c and the engaging member 83e are not engaged with each other, the engaged member 21c moves upward relative to the engaging member 83e, so that the engaged member 21c and the engaging member 83e are engaged with each other. Details of the case where the engaged member 21c and the engaging member 83e are engaged with each other and details of the case where the engaged member 21c and the engaging member 83e are not engaged with each other will be described later. Although the engaged member 21 is provided on the advancing / retreating member side member 21, it can be provided directly on the advancing / retreating member 11 as long as it can move forward and backward following the movement of the advancing / retreating member 11.

[0036] [biasing member 27] The biasing member 27 is a coil spring that generates a biasing force for moving the advancing / retreating member 11, which is disposed at the retreated position, toward the advanced position.

[0037] The biasing member 27 is disposed, for example, in a region between the advancing / retreating member side member 21 and the rear wall portion 40b inside the case 4. One end of the biasing member 27 is attached to a spring seat provided inside the advancing / retreating member side member 21, and the other end of the biasing member 27 is attached to a spring seat provided on the rear wall portion 40b of the case 4.

[0038] The biasing member 27 is not limited to a coil spring, but may be any elastic member that generates a biasing force for moving the reciprocating member 11, such as a leaf spring.

[0039] [Regulatory Department 83] The restricting portion 83 includes a pressing force transmitting member 83a, an internal member 83b, a restricting member 83c, and an engaging member 83e.

[0040] [Pressing force transmission member 83a] When the fuel lid 120 is closed, the pressing force transmission member 83a is pressed in by a protrusion 121 provided on the fuel lid 120. The pressing force transmission member 83a is a member for transmitting the pressing force when the fuel lid 120 is closed to the restricting member 83c. The pressing force transmission member 83a can also be used as a member for operating a detection switch that detects the open / closed state of the fuel lid 120 provided inside the case 4. For example, when the pressing force transmission member 83a is pressed in by the protrusion 121 of the fuel lid 120, the detection switch can be operated via an internal member 83b that is pressed in together with the pressing force transmission member 83a.

[0041] The pressing force transmission member 83a is formed in a columnar shape that can be inserted into a guide portion 83d formed on the front wall portion 40a of the case 4. The pressing force transmission member 83a is fixed to an internal member 83b, and protrudes from the internal member 83b to the outside of the case 4 via a guide portion 83d formed on the front wall portion 40a of the case 4 that guides the forward and backward movement of the pressing force transmission member 83a.

[0042] As shown in Fig. 2, when the fuel lid 120 is opened, the pressing force transmission member 83a moves to a protruding position (corresponding to the "advance position" of the present invention) where it protrudes outward from the case 4. The pressing force transmission member 83a shown in Fig. 2 is not pressed in by the protrusion 121. A gap is generated between the pressing force transmission member 83a and the protrusion 121 provided on the fuel lid 120. Note that the advance position of the pressing force transmission member 83a may be a protruding position where it protrudes outward from the case 4, or a position where it does not protrude from the case 4, as long as it can be pressed in by the protrusion 121 when the fuel lid 120 is closed.

[0043] As shown in FIG. 9, when the fuel lid 120 is closed, the pressing force transmission member 83a moves to a retracted position (corresponding to the "retracted position" of the present invention) where it is pressed by a protrusion 121 provided on the fuel lid 120.

[0044] [Internal member 83b] The internal member 83b is a member that fits with the pressing force transmission member 83a inside the case 4 and is arranged to be movable together with the pressing force transmission member 83a. The internal member 83b is arranged on a guide groove provided inside the case 4, for example.

[0045] 1 is closed, the internal member 83b moves in a direction from the front wall portion 40a toward the rear wall portion 40b, and when the fuel lid 120 is opened, the internal member 83b moves in a direction from the rear wall portion 40b toward the front wall portion 40a. The forward movement of the internal member 83b is restricted by contact with the case 40, for example, by contact with the front wall portion 40a.

[0046] [Regulation member 83c] The regulating member 83c moves together with the pressing force transmission member 83a, and is a member for regulating the movement of the restricting member 90 included in the movable member 31 when the fuel lid 120 is in the closed state and the pressing force transmission member 83a is pushed into the case 4. The regulating member 83c extends from the internal member 83b toward the rear side wall portion 40b of the case 4. The configuration of the regulating member will be described in detail later.

[0047] The restricting member 83c has a hook-shaped tip, and a recess 83c1 is formed in the restricting member 83c.

[0048] [Engagement member 83e] The engaging member 83e extends from the internal member 83b toward the regulating member 21a. The engaging member 83e is disposed in a position in the upper direction in FIG. 2 than the engaged member 21c extending from the regulating member 21a toward the internal member 83b. Details of the case where the engaging member 83e and the engaged member 21c are engaged with each other and details of the case where the engaging member 83e and the engaged member 21c are disengaged from each other will be described later. In addition, the biasing force of the biasing member 27 transmitted from the advancing / retreating member 11 to the pressing force transmission member 83a when the engaging member 83e and the engaged member 21c are engaged with each other will be described later.

[0049] [Sealing material 83f] FIG. 5 is a cross-sectional view of the advancing and retreating moving device shown in FIG. 9 taken along line AA. The advancing and retreating moving device shown in FIG. 9 is the same device as the advancing and retreating moving device shown in FIG. 2. As shown in FIG. 5, a seal member 83f is provided between the pressing force transmission member 83a and the guide portion 83d. The seal member 83f is an elastic seal member, and applies frictional resistance to the pressing force transmission member 83a by a restoring force due to deformation. When an external force (in this embodiment, the biasing force of the biasing member 27 transmitted from the advancing and retreating member 11 to the pressing force transmission member 83a) does not act on the pressing force transmission member 83a, the pressing force transmission member 83a is held at a stop position by a balance between a downward force in FIG. 5 (for example, gravity) and an upward force in FIG. 5 due to frictional resistance. Therefore, the material, shape, size, number, and arrangement of the seal member 83f are set so that the pressing force transmission member 83a can be held at a stop position. Furthermore, the sealing member 83f may be a member that has elasticity, as well as abrasion resistance, water resistance, oil resistance, workability, etc. This makes it possible for the sealing member 83f to prevent the intrusion of rainwater, oil, dust, and the like that would otherwise try to infiltrate into the inside of the case 4 from the outside of the case 4 through the gap between the pressing force transmission member 83a and the guide portion 83d.

[0050] [Drive unit 60] The driving unit 60 is a motor that generates a driving force for moving the limiting member 90. A rotary gear 64 is connected to the rotary shaft of the driving unit 60.

[0051] As a result of the driving unit 60 being driven, the tip of the restricting member 90 faces the tip of the restricting member 83c at a position spaced a certain distance from the tip of the restricting member 83c as shown in Fig. 3. This releases the engagement between the advancing / retreating member 21 and the restricting member 90, allowing the fuel lid 120 to be unlocked.

[0052] When the fuel lid 120 is open, the tip of the restricting member 90 is in contact with the engaged member 21b and / or the restricting member 83c, as shown in FIG. 2. When the driving unit 60 is driven, the tip of the restricting member 90 faces the tip of the restricting member 83c at a position spaced a certain distance from the tip of the restricting member 83c, as shown in FIG. 3. In this manner, the movement of the restricting member 90 from the first position to the second position shown in FIG. 4 is restricted. Therefore, in the position (first position) of the restricting member 90 shown in FIGS. 2 and 3, the restricting member 90 is not inserted into the recess 21b1 provided in the engaged member 21b (disengaged state), and the movement of the advancing and retreating member 11 is not restricted by the restricting member 90, so that the advancing and retreating member 11 can advance. The second position is equivalent to the position when the tip of the restricting member 90 is engaged with the recess 21b1 provided in the engaged member 21b, as shown in FIG. 6.

[0053] [Moving Part 31] As shown in FIGS. 2 and 3, the moving member 31 includes a rotary gear 74, a rack gear 93, a limiting member 90, and a biasing member 96.

[0054] [Rotating Gear 74] The rotary gear 74 is an annular gear and serves as a rotary force transmission member that transmits a rotary force generated by a motor or manually and moves the moving member 31 by the rotary force.

[0055] The rotary gear 74 is an example of a transmission member that transmits the rotational force of the drive unit 60 by meshing with the rotary gear 64, and moves the limiting member 90 by the rotational force. A small gear 75 is provided coaxially with the rotary gear 74. The small gear 75 meshes with a rack gear 93 formed on the limiting member 90.

[0056] [biasing member 96] The urging member 96 is disposed, for example, inside the case 4, in a region between the restricting member 90 and a protrusion (a portion protruding from the inner side wall of the case 4 in the direction perpendicular to the plane of the paper in FIG. 2) formed on the inside of the rear wall portion 40b of the case 4. One end of the urging member 96 faces the restricting member 90, and the other end of the urging member 96 faces the protrusion formed on the rear wall portion 40b of the case 4.

[0057] The biasing member 96 is a coil spring that generates a biasing force for moving the restricting member 90, which is disposed at the first position, toward the second position shown in FIG.

[0058] The biasing member 96 is not limited to a coil spring, but may be any elastic member that generates a biasing force for moving the restricting member 90, such as a leaf spring.

[0059] [Limiting member 90 and rack gear 93] The restricting member 90 is a member that is housed inside the case 4 shown in Fig. 2 and moves between a first position and a second position. The restricting member 90 can move from the first position toward the second position by the biasing force generated by the biasing member 96.

[0060] In addition, the limiting member 90 can also be moved by utilizing a rotational force generated when a drive mechanism (not shown) is manually operated, other than the biasing force generated by the biasing member 96.

[0061] A rack gear 93 is formed on the limiting member 90. The rack gear 93 is a gear for converting rotational motion into linear motion.

[0062] When the rotary gear 74 meshing with the rack gear 93 rotates, the limiting member 90 moves between the first position and the second position.

[0063] The first position is a position that allows the advancement of the advancing / retreating member 11. When the restricting member 90 is disposed in the first position, the restricting member 90 is not engaged with the recess 21b1 shown in Fig. 6 that is formed in the engaged member 21b. Therefore, the advancing / retreating member 11 disposed in the retracted position can advance by the biasing force generated by the biasing member 27 shown in Fig. 2.

[0064] The second position is a position where the advancement of the advancing / retreating member 11 shown in Fig. 2 is stopped. The second position is equivalent to the position where the tip end of the limiting member 90 shown in Fig. 6 is engaged with the recess 21b1 provided in the engaged member 21b.

[0065] When the restricting member 90 is disposed in the second position in this manner, the restricting member 90 engages with the recess 21b1 formed in the engaged member 21b, so that the advancing / retracting member 11 remains in the retracted position and cannot advance forward.

[0066] [Operation of the forward and backward moving device 1] Next, the operation of the advancing and retreating moving device 1 when the fuel lid 120 is closed will be described with reference to Figures 2, 3, 4 and 6. Figures 2, 3, 4 and 6 are diagrams for explaining the operation of the advancing and retreating moving device 1 when the fuel lid 120 is closed. Figure 4 is a diagram showing the state of the advancing and retreating moving device 1 when the fuel lid 120 is pushed in and the advancing and retreating member 11 has moved further in the retreating direction from the retreated position, and Figure 6 is an enlarged diagram of a portion of the advancing and retreating moving device 1 shown in Figure 4.

[0067] FIG. 2 shows the state of the advancing and retreating movement device 1 before the fuel lid 120 is pushed in.

[0068] When the fuel lid 120 is not pushed in, the advancing / retreating member 11 is disposed in the forward position by the biasing force generated by the biasing member 27. When the pressing force transmission member 83a is not pushed into the protrusion 121 provided on the fuel lid 120, the pressing force transmission member 83a is disposed in a protruding position (advanced position) protruding from the internal member 83b to the outside of the case 4.

[0069] At this time, since the engaging member 83e extending from the internal member 83b toward the regulating member 21a and the engaged member 21c extending from the regulating member 21a toward the internal member 83b are engaged with each other, the biasing force generated by the biasing member 27 is transmitted from the advancing / retreating member 11 to the pressing force transmission member 83a.

[0070] 2, the tip of the restricting member 90 is in contact with the tip of the restricting member 83c (a portion below the portion where the recess 83c is provided), and thus the movement of the restricting member 90 from the first position to the second position shown in FIG.

[0071] In this state, when the fuel lid 120 is pushed in, the advancing / retreating member 11 moves in the rearward direction against the biasing force generated by the biasing member 27. When the fuel lid 120 is pushed in slightly, the advancing / retreating member 11 starts to move in the rearward direction against the biasing force generated by the biasing member 27.

[0072] When the advancing / retreating member 11 moves in the rearward direction, the advancing / retreating member side member 21 moves in the rearward direction together with the advancing / retreating member 11. In addition, the engaged member 21c extending from the regulating member 21a toward the internal member 83b moves in the rearward direction together with the advancing / retreating member 11.

[0073] FIG. 7 shows the state of the advancing and retreating movement device 1 when the fuel lid 120 is slightly pushed in. In FIG. 7, the pushing direction is indicated by an outline arrow. When the fuel lid 120 is slightly pushed in, the pressing force transmission member 83a is still not pushed in by the protrusion 121 provided on the fuel lid 120, and is therefore held in the stopped position by frictional resistance of the seal member 83f (see FIG. 5) provided between the pressing force transmission member 83a and the guide portion 83d. In other words, the pressing force transmission member 83a remains stationary in the protruding position (advance position). Similarly, the engagement member 83e extending from the internal member 83b toward the regulating member 21a remains stationary.

[0074] As a result, when the fuel lid 120 is slightly pushed in, the engaged member 21c moves backward while the engaging member 83e is stationary, creating a gap between the engaging member 83e and the engaged member 21c, resulting in a disengaged state in which the engaging member 83e and the engaged member 21c do not engage with each other. As a result, the biasing force generated by the biasing member 27 is not transmitted from the advancing / retreating member 11 to the pressing force transmission member 83a.

[0075] When the fuel lid 120 is pushed further in, the advancing / retreating member 11 moves in the rearward direction against the biasing force generated by the biasing member 27. Since the engaged member 21c moves in the rearward direction while the engaging member 83e is stationary, the gap between the engaging member 83e and the engaged member 21c widens.

[0076] FIG. 8 shows the state of the advancing / retreating device 1 when the fuel lid 120 is further pushed in. The pushing direction is indicated by a hollow arrow in FIG. 8. When the fuel lid 120 is further pushed in, the advancing / retreating member 11 moves in the rearward direction against the biasing force generated by the biasing member 27. In addition, the pressing force transmission member 83a is pressed in by the protrusion 121 provided on the fuel lid 120. This causes the pressing force transmission member 83a to move in the rearward direction. That is, the advancing / retreating member 11 and the pressing force transmission member 83a both move in the rearward direction. When the advancing / retreating member 11 and the pressing force transmission member 83a both move in the rearward direction, the gap between the engaging member 83e and the engaged member 21c is kept constant.

[0077] FIG. 4 shows the forward / backward movement device 1 when the fuel lid 120 is further pushed in. When the fuel lid 120 is further pushed in, the pressing force transmission member 83a is pushed in by the protrusion 121 provided on the fuel lid 120 and moves in the direction from the front side wall portion 40a to the rear side wall portion 40b of the case 4, so that the tip of the restricting member 83c moves so as to approach the rear side wall portion 40b of the case 4. When the tip of the restricting member 83c approaches the rear side wall portion 40b of the case 4, the tip of the restricting member 90 pushed by the biasing force generated by the biasing member 96 is inserted into the recess 83c1 shown in FIG. 6 formed in the restricting member 83c. In addition, the tip of the restricting member 90 passes through the recess 83c1 of the restricting member 83c and is then inserted into the recess 21b1 formed in the engaged member 21b. Note that the position of the tip of the restricting member 90 at this time is equal to the second position.

[0078] Furthermore, when the fuel lid 120 is further pushed in and the advancing / retreating member 11 retracts, the lid locking portion 12 rotates and is locked to the lid locked portion 140 .

[0079] As described above, as shown in Figures 2, 4, 7 and 8, when the fuel lid 120 is closed, the engaged member 21c moves a longer distance than the engaging member 83e, creating a gap between the engaging member 83e and the engaged member 21c, and when the advancing / retracting member 11 is positioned in the retracted position, the engaging member 83e and the engaged member 21c are disengaged from each other.

[0080] Fig. 9 is a diagram showing the state of the advancing and withdrawing moving device 1 when the pushing operation of the fuel lid 120 is completed, and Fig. 10 is an enlarged diagram showing a part of the advancing and withdrawing moving device 1 shown in Fig. 9. The pushing direction is indicated by a hollow arrow in Fig. 9.

[0081] When the fuel lid 120 has been completely pushed in, the force generated by the biasing member 27 causes the advancing / retreating member 11 to attempt to move forward, but the tip of the restricting member 90 is inserted into the recess 21b1 formed in the engaged member 21b and engages with the recess 21b1, thereby restricting the movement of the advancing / retreating member 11.

[0082] That is, the advancing and retracting member 11 is locked. As a result, the fuel lid 120 is locked in a state in which it closes the fuel filler opening 2a.

[0083] Furthermore, as the advancing / retreating member 11 moves in the forward direction due to the biasing force generated by the biasing member 27, the gap between the engaging member 83e and the engaged member 21c becomes narrower than the gap shown in Fig. 4, but since the engaging member 83e and the engaged member 21c are still in a disengaged state, the biasing force generated by the biasing member 27 is not transmitted from the advancing / retreating member 11 to the pressing force transmission member 83a. At this time, the pressing force transmission member 83a is held in a stopped position by the frictional resistance of a seal member 83f (see Fig. 5) provided between the pressing force transmission member 83a and the guide portion 83d.

[0084] Furthermore, when the pushing of the fuel lid 120 is complete, the biasing force generated by the biasing member 27 is not transmitted from the advancing / retreating member 11 to the pressing force transmission member 83a, so the fuel lid 120 is not pushed in the opening direction from the closed state position (closed position) by the pressing force transmission member. The fuel lid 120 is maintained in the closed position.

[0085] 10, the tip of the restricting member 90 inserted into the recess 83c1 of the restricting member 83c is inserted into the recess 21b1 formed in the engaged member 21b without contacting the restricting member 83c. This restricts the forward movement of the restricting member 21a, so that the fuel lid 120 shown in FIG. 9 can be maintained in the closed state.

[0086] Next, the operation of the advancing and retreating moving device 1 when the fuel lid 120 is opened will be described with reference to Figures 9 and 11. Figure 11 is a diagram showing the state of the advancing and retreating moving device 1 when the fuel lid 120 is opened. In Figure 11, the forward movement direction of the advancing and retreating member 11 is indicated by a hollow arrow.

[0087] When the fuel lid 120 in the closed state shown in FIG. 9 is moved from the closed position to the open position, the restricting member 90 can be moved away from the advancing / retreating member 11 by driving the drive unit 60 or by using a drive mechanism (not shown) that manually generates a rotational force.

[0088] As a result, the tip of the restricting member 90 is pulled out of the recess 21b1 formed in the engaged member 21b, and the restriction on the movement of the advancing / retreating member 11 in the advancing / retreating direction is released. The advancing / retreating member 11, whose movement restriction has been released in this manner, moves in the forward direction due to the biasing force of the biasing member 27. At this time, the advancing / retreating member 11 moves in the axial direction of the advancing / retreating member 11 while rotating relative to the case 4.

[0089] As the advancing / retreating member 11 rotates, the lid locking portion 12 provided at the tip of the advancing / retreating member 11 also rotates, and the locking with the lid locked portion 140 is released. The advancing / retreating member 11 also moves forward to push up the fuel lid 120.

[0090] On the other hand, since the pressing force transmission member 83a is held at a stop position by the frictional resistance of the seal member 83f (see FIG. 5), as the advancing / retreating member 11 moves forward, the gap between the engaging member 83e extending from the internal member 83b toward the regulating member 21a and the engaged member 21c extending from the regulating member 21a toward the internal member 83b narrows, and eventually the engaging member 83e and the engaged member 21c engage with each other, as shown in FIG. 11. As a result, the biasing force generated by the biasing member 27 is transmitted from the advancing / retreating member 11 to the pressing force transmission member 83a, so that the pressing force transmission member 83a moves together with the advancing / retreating member 11.

[0091] The retractable member 11 further moves forward and reaches the forward position, whereby the fuel lid 120 is opened.

[0092] Moreover, the pressing force transmission member 83a moves together with the advancing and retreating member 11, and thereby moves to a protruding position (advance position) protruding from the internal member 83b to the outside of the case 4.

[0093] 2, 9 and 11, when the fuel lid 120 is opened, the engaged member 21c moves a longer distance than the engaging member 83e and thereby engages with the engaging member 83e. As a result, the biasing force generated by the biasing member 27 is transmitted from the advancing / retreating member 11 to the pressing force transmission member 83a, so that the pressing force transmission member 83a moves together with the advancing / retreating member 11.

[0094] As described above, the advancing / retreating movement device 1 according to the embodiment of the present invention includes the case 4, the advancing / retreating member 11 having one end housed in the case 4 and the other end protruding from the case 4, advancing from the inside of the case 4 toward the outside, and retracting from the outside of the case toward the inside, the biasing member 27 that biases the advancing / retreating member 11, the moving member 31 that is housed in the case 4 and moves between a first position that allows the advancing / retreating member 11 to advance due to the biasing force of the biasing member 27 and a second position that stops the advancement of the advancing / retreating member 11, and the moving member 31 that moves together with the advancing / retreating member 11 inside the case 4. The case 4 includes an engaged member 21c that moves, a pressing force transmission member 83a that moves from an advanced position to a retracted position due to the pressing force applied when the fuel lid 120 is closed, and an engaging member 83e that moves together with the pressing force transmission member 83a inside the case 4, and the engaging member 83e and the engaged member 21c are engaged so that the biasing force of the biasing member 27 is applied to the pressing force transmission member 83a when the advancing / retreating member 11 advances, and are disengaged so that the biasing force of the biasing member 27 is not applied to the pressing force transmission member 83a when the pressing force transmission member 83a is positioned in the retracted position.

[0095] With the above configuration, when the advancing / retreating member 11 advances, the engaging member 83e and the engaged member 21c are engaged with each other, and the biasing force of the biasing member is applied from the advancing / retreating member 11 to the pressing force transmission member 83a. Therefore, even if there is no special member for moving the pressing force transmission member 83a from the retracted position (retracted position) to the protruding position (advance position), the pressing force transmission member 83a can be moved to the protruding position (advance position) together with the advancing / retreating member 11. Also, when the advancing / retreating member 11 retreats, the engaging member 83e and the engaged member 21c are disengaged from each other, and the biasing force of the biasing member is not applied from the advancing / retreating member 11 to the pressing force transmission member 83a. Therefore, the fuel lid 120 is not pressed by the pressing force transmission member 83a. This makes it possible to prevent the fuel lid 120 from floating up from the vehicle body. Furthermore, since no gap is created between the vehicle body and fuel lid 120 that is raised above the vehicle body and the vehicle body, it is possible to improve crime prevention.

[0096] Furthermore, according to the advancing / retreating device 1 according to the embodiment of the present invention, when the advancing / retreating member 11 retracts in a direction from the outside to the inside of the case 4, the engaged member 21c moves a longer distance than the engaging member 83e, thereby becoming disengaged from the engaging member 83e. Since the engaging member 83e and the engaged member 21c can be put into a disengaged state with a simple configuration without adding any parts for releasing the mutual engagement between the engaging member 83e and the engaged member 21c, the manufacturing cost of the advancing / retreating device 1 can be reduced.

[0097] Furthermore, according to the advancing / retreating device 1 according to the embodiment of the present invention, when the advancing / retreating member 11 advances in a direction from the inside to the outside of the case 4, the engaged member 21c moves a longer distance than the engaging member 83e, thereby engaging with the engaging member 83e. Since the engaging member 83e and the engaged member 21c can be brought into an engaged state with each other with a simple configuration without adding any parts for bringing the engaging member 83e and the engaged member 21c into an engaged state with each other, it is possible to reduce the manufacturing cost of the advancing / retreating device 1.

[0098] Moreover, the advancing / retreating device 1 according to the embodiment of the present invention further includes a guide portion 83d for guiding the advancing / retreating movement of the pressing force transmission member 83a, and an elastic seal member 83f disposed between the pressing force transmission member 83a and the guide portion 83d. This makes it possible to hold the pressing force transmission member 83a at the stop position more reliably by the frictional resistance of the seal member 83f, and furthermore makes it possible to hold the engaging member 83e at the stop position more reliably. As a result, the configuration of the advancing / retreating device 1 that brings the engaging member 83e held at the stop position into an engaged state with the engaged member 21c that moves together with the advancing / retreating member 11, and conversely, brings the engaging member 83e into a disengaged state with the engaged member 21c, is simplified, and the reliability of the advancing / retreating device 1 is improved, and the manufacturing cost of the advancing / retreating device 1 can be reduced. In addition, if the fitting tolerance between the pressing force transmission member 83a and the guide portion 83d is set so that the pressing force transmission member 83a can be held in the stopped position by the frictional resistance generated between the pressing force transmission member 83a and the guide portion 83d, the above-mentioned sealing member 83f will not be necessary.

[0099] In the embodiment of the present invention, when the advancing / retreating member 11 retracts, the engaged member 21c moves a longer distance than the engaging member 83e to become disengaged from the engaging member 83e, and when the advancing / retreating member 11 advances, the engaged member 21c moves a longer distance than the engaging member 83e to become engaged with the engaging member 83e. However, configurations other than this example may be adopted as long as the structure is such that the engagement state between the engaged member 21c and the engaging member 83e is switched to a disengaged state at a predetermined position between the advancing / retreating member 11 moving from the advanced position to the retreated position, and the disengagement state between the engaged member 21c and the engaging member 83e is switched to an engaged state at a predetermined position between the advancing / retreating member 11 moving from the retreated position to the advanced position. For example, the moving direction of the retractable member 11 is the axial direction, and one of the engaged member 21c or the engaging member 83e is rotatably provided around the axis, and the engaged member 21c is disengaged from the engaging member 83e by rotating one of the members from a predetermined position in response to the movement of the retractable member 11 to a predetermined position, and the engaged member 21c is engaged with the engaging member 83e by rotating one of the members from the rotated position to a predetermined position in response to the movement of the retractable member 11 to the forward position. In addition, in the embodiment of the present invention, a device in which the lid opens when the lock of the retractable member by the restricting member is released has been described as an example, but the present invention may also be used in a device equipped with a so-called push-push mechanism in which the retractable member is moved forward and backward to an open position and a closed position by a user pushing the lid to open and close the lid.

[0100] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims, such as equivalents.

[0101] The above describes the embodiment of the present invention. Note that the above description is an example of a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. In other words, the description of the configuration of the above device and the shape of each part are examples, and it is clear that various modifications and additions to these examples are possible within the scope of the present invention. [Industrial Applicability]

[0102] INDUSTRIAL APPLICABILITY The advancing and retreating movement device according to the present invention is useful as a device capable of preventing a lid from floating up from a vehicle body. [Explanation of symbols]

[0103] 1 Advance / retreat movement device 2. Body 2a Fuel supply opening 4 Cases 11. Moving parts 12 Lid locking part 21 Movement member side member 21a Regulatory member 21b Engaged member 21c Engaged member 21b1 Recess 27 Pressing member 31 Moving parts 40a Front side wall 40b Rear wall 60 Drive unit 64 Rotating Gear 74 Rotating Gear 75 Pinion 80 Pressure transmission part 83 Regulatory Department 83a Pressing force transmission member 83b Internal parts 83c Regulatory material 83c1 Recess 83d Information Department 83e Engagement member 83f Sealing material 90 Restriction member 93 Rack Gear 96 Pressurizing member 100 Switchgear 110 Main body 120 Fuel Lid 121 Protrusion 130 Hinge 140 Lid latching portion 160 Screw Cap

Claims

1. Case and an advancing / retreating member having one end housed in the case and the other end protruding from the case, and adapted to advance from the inside of the case toward the outside and to retreat from the outside of the case toward the inside; A biasing member that biases the advancing and retreating member; a movable member that is housed in the case and moves between a first position that allows the advancement of the retractable member by the biasing force of the biasing member and a second position that stops the advancement of the retractable member; an engaged portion that moves together with the advancing and retreating member inside the case; a pressing force transmission member that moves from a forward position to a backward position by a pressing force applied when the lid is closed; an engaging portion that moves together with the pressing force transmission member inside the case; Equipped with the engaging portion and the engaged portion are in an engaged state such that the biasing force of the biasing member is applied to the pressing force transmission member when the advancing / retreating member advances, and are in a disengaged state such that the biasing force of the biasing member is not applied to the pressing force transmission member when the pressing force transmission member is located at the retreated position. Advance / retreat movement device.

2. 2. The advance / retract movement device according to claim 1, wherein when the advance / retract member retracts in a direction from the outside to the inside of the case, the engaged portion moves a longer distance than the engaging portion, thereby becoming disengaged from the engaging portion.

3. 3. The advance / retract movement device according to claim 1, wherein when the advance / retract member advances in a direction from the inside to the outside of the case, the engaged portion moves a longer distance than the engaging portion, thereby engaging with the engaging portion.

4. A guide portion that guides the forward and backward movement of the pressing force transmission member; a seal member having elasticity and disposed between the pressing force transmission member and the guide portion; The advance / retreat movement device according to claim 1 , further comprising:

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