Advancing and retracting movement device

Abstract

A retractable movement device is provided with: a retracting member that is housed in a housing at one end side and protrudes from the housing at the other end side, advances from the inside of the housing to the outside, and retreats from the outside of the housing to the inside; a moving member that moves between a first position in which the retracting member can advance by the action of a force of a force applying member and a second position in which the retracting member is prevented from advancing; an engaged portion that moves together with the retracting member; a pressing force transmitting member that moves from the advancing position to the retreating position by a pressing force when a cover is closed; and an engaging portion that moves together with the pressing force transmitting member, the engaging portion and the engaged portion become an engaged state when the retracting member advances so that the action of the force applying member is applied to the pressing force transmitting member, and become a non-engaged state when the pressing force transmitting member is at the retreating position so that the action of the force applying member is not applied to the pressing force transmitting member, whereby the cover can be prevented from floating up from the vehicle body.

Description

Technical Field

[0001] This invention relates to a forward and backward moving device. Background Technology

[0002] A cover opening and closing device is known for opening and closing a cover (fuel cap) that serves as a cover for blocking a fuel supply opening in a vehicle equipped with an internal combustion engine, and a cover that serves as a cover for blocking an opening for receiving electricity in a vehicle equipped with a battery.

[0003] For example, as a cover opening and closing device, a device is disclosed that includes a housing installed at the oil supply opening, a retractable member that moves forward and backward relative to the housing to open and close the cover, a limiting member that restricts the retractable movement of the retractable member, a pressure transmission member for activating a detection switch for detecting the opening and closing of the cover, and a force application member (for example, see Patent Document 1).

[0004] The pressure transmission member is forced in the protruding direction (the forward direction of the advancing member) by the force applied by the force-applying member. When the cover moves from the open position to the closed position, the pressure transmission member is pressed by the cover and moves in the backward direction against the force applied by the force-applying member.

[0005] Furthermore, when the retractable component is pressed down by the cover and moved to the retracted position, the limiting component engages with the retractable component, restricting the retractable component's forward and backward movement. When the cover moves to the closed position, the cover locking part of the retractable component engages with the cover locking part of the cover, thereby locking the cover.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent Application Publication No. 2020-122335 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] However, in the cover opening and closing device described in Patent Document 1, when the cover is moved to the closed position, the pressure transmission member is forced in the protruding direction (the forward direction of the advancing member) by the force applied by the force-applying member. Therefore, the cover is pressed from the closed position to the open position by the pressure transmission member. Here, when there is a gap between the members (for example, the gap between the cover locking part and the cover being locked), the cover pressed by the pressure transmission member moves a certain amount of this gap from the closed position to the open position. If the amount of cover movement is large, the cover floats off the vehicle body and becomes conspicuous, thus affecting the appearance. In addition, a gap is created between the cover that floats off the vehicle body and the vehicle body, which allows tools or the like to be inserted, creating a theft problem.

[0011] The purpose of this invention is to provide a retractable movement device that can prevent the cover from floating off the vehicle body.

[0012] Technical solutions for solving the problem

[0013] The forward and backward moving device of the present invention includes:

[0014] case;

[0015] The advancing and retracting member has one end housed in the housing and the other end protruding from the housing, advancing in a direction from the inside of the housing to the outside, and retracting in a direction from the outside of the housing to the inside;

[0016] The force-applying component applies force to the advancing / retracting component;

[0017] A movable component, housed in the housing, moves between a first position and a second position, wherein the first position is a position in which the force of the force-applying component can be used to advance the retractable component, and the second position is a position in which the retractable component is prevented from advancing.

[0018] The engaging portion moves together with the advancing / retracting member inside the housing;

[0019] The pressure transmission component moves from the forward position to the reverse position by the pressure applied when the cover is closed; and

[0020] The engaging portion moves together with the pressure transmission member inside the housing.

[0021] The engaging portion and the engaged portion are engaged when the advancing and retracting member moves forward, so that the force of the force-applying member is applied to the pressing pressure transmission member. When the pressing pressure transmission member is in the retracted position, they are disengaged, so that the force of the force-applying member is not applied to the pressing pressure transmission member.

[0022] Invention Effects

[0023] According to the present invention, a forward and backward moving device is available that can prevent the cover from floating off the vehicle body. Attached Figure Description

[0024] Figure 1 This is a diagram illustrating a structural example of an opening and closing device that includes the forward and backward moving device according to an embodiment of the present invention.

[0025] Figure 2 This is a diagram illustrating a structural example of the forward and backward moving device according to an embodiment of the present invention.

[0026] Figure 3 This is an enlarged view showing a portion of the forward and backward moving mechanism when the drive unit is driven.

[0027] Figure 4 This is a diagram showing the state of the forward and backward moving device when the fuel cap is pressed in.

[0028] Figure 5 yes Figure 9 A sectional view along line AA.

[0029] Figure 6 It is an enlarged representation Figure 4 A diagram showing a portion of the forward and backward moving device.

[0030] Figure 7 This diagram shows the state of the forward and backward moving mechanism when the fuel cap is slightly pressed in.

[0031] Figure 8 This diagram shows the state of the forward and backward moving mechanism when the fuel cap is further pressed in.

[0032] Figure 9 This diagram shows the state of the forward and backward moving device when the fuel cap pressing operation is completed.

[0033] Figure 10 It is an enlarged representation Figure 9 A diagram showing a portion of the forward and backward moving device.

[0034] Figure 11 This diagram shows the state of the forward and backward moving device when the fuel cap is opened. Detailed Implementation

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0036] [Structure of opening and closing device 100]

[0037] Figure 1 This diagram illustrates a structural example of an opening / closing device 100 comprising the forward / backward moving device 1 according to an embodiment of the present invention. Figure 2 This is a diagram illustrating a structural example of the forward and backward moving device 1 according to an embodiment of the present invention.

[0038] The opening and closing device 100 is a device for opening and closing the fuel cap 120, which serves as a cover for blocking the fuel supply opening 2a provided on the vehicle body 2. The opening and closing device 100 includes the forward and backward moving device 1 according to the embodiments of the present invention. Furthermore, details regarding the structure of the forward and backward moving device 1 will be described later.

[0039] The opening and closing device 100 includes: a main body 110, which is installed on the fuel supply opening 2a provided on the vehicle body 2; a fuel cap 120; a hinge 130 that supports the fuel cap 120 in a rotatable manner; and a forward and backward moving device 1.

[0040] The main body 110, for example, constitutes an oil supply chamber surrounding the oil supply pipe. In addition, the oil supply port formed at the front end of the oil supply pipe is closed by a screw cap 160.

[0041] The retractable member 11 is a component used to open the fuel cover 120. A cover locking part 12 is provided at the front end of the retractable member 11.

[0042] In the opening and closing device 100 configured in this way, when the fuel cap 120 is closed, the cap retaining part 140 provided on the fuel cap 120 comes into contact with the advance / retracting member 11. At this time, the cap retaining part 12 provided on the advance / retracting member 11 is inserted into the interior of the cap retaining part 140.

[0043] In this state, when the fuel cap 120 is pressed in, the retracting member 11 retracts towards the inside of the vehicle body 2. The term "retracting" means that the retracting member 11 moves from the outside of the housing towards the inside of the housing, as described later.

[0044] Furthermore, when the retracting member 11 retracts, the cover locking part 12 rotates and locks itself into the cover locking part 140. When the cover locking part 12 is locked into the cover locking part 140, the retracting member 11 is positioned in the retracted position.

[0045] The reverse position is the stop position of the retracting member 11. The reverse position is also the position where the fuel cover 120 is kept closed.

[0046] In this state, the limiting member 90, described later, is inserted into the recess of the retractable member side member 21, described later, thereby restricting the movement of the retractable member 11 held by the retractable member side member 21, i.e., locking the retractable member 11. As a result, the fuel cap 120 is locked while closing the fuel supply opening 2a.

[0047] When the retractable member 11 changes from a locked state by the aforementioned limiting member 90 to an unlocked state in order to open the fuel cap 120, the retractable member 11 moves forward toward the outside of the vehicle body 2. "Moving forward" means that the retractable member 11 moves from the inside of the housing (described later) toward the outside of the housing.

[0048] At this time, by rotating the cover locking part 12 provided on the advance / retract member 11, the locking of the cover locking part 12 against the cover locking part 140 is released. As a result, the cover locking part 12 disengages from the cover locking part 140, and the fuel cover 120 can be opened.

[0049] The pressure transmission unit 80 includes a limiting part, a guiding part, etc. Details of the limiting part, the guiding part, etc. will be described later.

[0050] [Structure of the forward / backward moving device 1]

[0051] Next, refer to Figure 2 and Figure 3 Explain the structure of the forward and backward moving device 1.

[0052] Figure 2 The shown retractable movement device 1 is a device that causes the retractable member 11 to move forward or backward relative to the housing 4. The retractable movement device 1 includes the housing 4, the retractable member 11, the retractable member side member 21, the force-applying member 27, the moving member 31, the drive unit 60, and the limiting unit 83.

[0053] [Advancing / Retracting Component 11]

[0054] The retractable member 11 is a cylindrical or cylindrical member capable of moving forward and backward relative to the housing 4. The retractable member 11 is inserted into a through hole (not shown) formed in the front sidewall portion 40a.

[0055] The retractable member 11 moves between a forward position relative to the housing 4 and a backward position relative to the housing 4. The forward position is the stop position of the forward retractable member 11. The forward position is also... Figure 1 The position of the advance / retractor 11 when the locking part 12 of the cover is released from the locking part 140 of the cover is shown.

[0056] [Advancing / Retracting Component Side Component 21]

[0057] The retractable member side member 21 is engaged with the retractable member 11 in a manner that allows for relative rotation, and moves together with the retractable member 11. The retractable member side member 21 includes a limiting member 21a, a locking member 21b, and a locking member 21c (corresponding to the "locking part" of the present invention).

[0058] [Restriction Component 21a]

[0059] The limiting member 21a restricts the forward and backward positions of the advancing and retracting member 11 by moving it within the housing 4 while holding the advancing and retracting member 11 in a rotatable manner.

[0060] The limiting member 21a is disposed in the region between the front sidewall portion 40a and the rear sidewall portion 40b of the housing 4. The limiting member 21a contacts the front sidewall portion 40a, thereby limiting the forward movement of the retractable member 11. In addition, the limiting member 21a contacts the rear sidewall portion 40b, thereby limiting the backward movement of the retractable member 11.

[0061] [Interlocking component 21b]

[0062] The engaging member 21b restricts the advance of the limiting member 21a by engaging with the limiting member 90. Therefore, a recess for engaging with the limiting member 90 is formed in the engaging member 21b. Details of this recess will be described later.

[0063] The engaging member 21b extends from the restricting member 21a toward the rear sidewall portion 40b. The engaging member 21b is disposed adjacent to and parallel to the restricting member 83c.

[0064] [Interlocking component 21c]

[0065] The engaging member 21c extends from the restricting member 21a toward the inner member 83b. Figure 2 In the case where the direction in which the retracting member 11 moves from the retracting position to the forward position is set as the upward direction and the direction in which the retracting member 11 moves from the forward position to the retracting position is set as the downward direction, the engaging member 21c is positioned in a lower direction than the engaging member 83e (corresponding to the "engaging part" of the present invention) which extends from the internal member 83b toward the restricting member 21a. Figure 2 The engaging member 21c and engaging member 83e shown are in an engaged state. That is, no vertical gap is generated between the engaging member 21c and engaging member 83e. In this state, the engaging member 21c moves downward relative to the engaging member 83e, thereby creating a vertical gap between the engaging member 21c and engaging member 83e, and the engaging member 21c and engaging member 83e become non-engaged. On the other hand, even if the engaging member 21c and engaging member 83e are non-engaged, by moving the engaging member 21c upward relative to the engaging member 83e, the engaging member 21c and engaging member 83e become engaged. Furthermore, details regarding the case where the engaging member 21c and engaging member 83e are engaged, and details regarding the case where the engaging member 21c and engaging member 83e are non-engaged, will be described later. In addition, the engaging member 21 is provided on the advancing and retreating member side member 21, but as long as it can follow the movement of the advancing and retreating member 11 and move forward and backward, it can also be directly provided on the advancing and retreating member 11.

[0066] [Force-applying component 27]

[0067] The force-applying component 27 is a helical spring, which generates a force to move the forward / reverse component 11, which is positioned in the backward position, toward the forward position.

[0068] The force-applying member 27 is disposed, for example, inside the housing 4 in the region between the advancing / retracting member side member 21 and the rear side wall portion 40b. One end of the force-applying member 27 is mounted to a spring seat provided inside the advancing / retracting member side member 21, and the other end of the force-applying member 27 is mounted to a spring seat provided in the rear side wall portion 40b of the housing 4.

[0069] Furthermore, the force-applying component 27 is not limited to a helical spring; it can be any elastic component that generates a force that moves the advancing or retreating component 11, such as a leaf spring.

[0070] [Restriction Section 83]

[0071] The limiting part 83 includes a pressure transmission member 83a, an internal member 83b, a limiting member 83c, and a locking member 83e.

[0072] [According to pressure transmission component 83a]

[0073] When the fuel cap 120 is closed, the pressure transmission member 83a is pressed into the protrusion 121 of the fuel cap 120. The pressure transmission member 83a is a member for transmitting the pressing pressure when the fuel cap 120 is closed to the limiting member 83c. Additionally, it can be used as a member for operating a detection switch, which is a detection switch located inside the housing 4 for detecting the open / closed state of the fuel cap 120. For example, when the pressure transmission member 83a is pressed into the protrusion 121 of the fuel cap 120, the detection switch can be operated via the internal member 83b, which is pressed in together with the pressure transmission member 83a.

[0074] The pressure transmission member 83a is formed as a column that can be inserted into the guide portion 83d formed in the front sidewall portion 40a of the housing 4. The pressure transmission member 83a is fixed to the inner member 83b and protrudes from the inner member 83b to the outside of the housing 4 via the guide portion 83d, which is formed in the front sidewall portion 40a of the housing 4 and guides the forward and backward movement of the pressure transmission member 83a.

[0075] like Figure 2 As shown, when the fuel cap 120 is opened, the pressure transmission member 83a moves toward a protruding position (corresponding to the "forward position" of the present invention) that protrudes outward from the housing 4. Figure 2 The pressure transmission member 83a shown is not pressed in by the protrusion 121. A gap is created between the pressure transmission member 83a and the protrusion 121 provided on the fuel cap 120. Furthermore, the forward position of the pressure transmission member 83a can be either a protruding position that protrudes outward from the housing 4 or a position that does not protrude from the housing 4, as long as it can be pressed in by the protrusion 121 when the fuel cap 120 is closed.

[0076] like Figure 9 As shown, when the fuel cap 120 is closed, the pressure transmission member 83a moves to the pull-in position (corresponding to the "retracted position" of the present invention) where it is pressed into the protrusion 121 provided on the fuel cap 120.

[0077] [Internal component 83b]

[0078] The internal member 83b is a member that fits into the pressure transmission member 83a inside the housing 4 and is configured in a manner that allows it to move together with the pressure transmission member 83a. For example, the internal member 83b is disposed on a guide groove provided inside the housing 4.

[0079] Internal component 83b in Figure 1 When the fuel cap 120 is closed, it moves from the front side wall 40a toward the rear side wall 40b; when the fuel cap 120 is open, it moves from the rear side wall 40b toward the front side wall 40a. The forward position of the internal member 83b is restricted by contact with the housing 40, for example, contact with the front side wall 40a.

[0080] [Restriction Component 83c]

[0081] The limiting member 83c moves together with the pressure transmission member 83a and is used to limit the movement of the limiting member 90 of the moving member 31 when the pressure transmission member 83a is pressed into the interior of the housing 4 by the fuel cap 120 being in the closed state. The limiting member 83c extends from the inner member 83b toward the rear side wall portion 40b of the housing 4. Details of the structure of the limiting member will be described later.

[0082] The front end of the limiting member 83c is formed in the shape of a hook. Furthermore, a recess 83c1 is formed on the limiting member 83c.

[0083] [Mechanical Component 83e]

[0084] The engaging member 83e extends from the inner member 83b toward the restricting member 21a. The engaging member 83e is positioned closer to the engaged member 21c, which extends from the restricting member 21a toward the inner member 83b. Figure 2 The position in the upper direction. Furthermore, details regarding the case where the engaging member 83e and the engaged member 21c are engaged with each other, and details regarding the case where the engaging member 83e and the engaged member 21c are not engaged with each other, will be described later. Additionally, the force transmitted from the advancing / retracting 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 also be described later.

[0085] [Sealing component 83f]

[0086] Figure 5 yes Figure 9 The AA-line sectional view of the forward and backward moving device shown. Figure 9 The forward and backward moving device shown is with Figure 2 The device shown is the same as the forward and backward movement device. For example... Figure 5As shown, a sealing member 83f is provided between the pressure transmission member 83a and the guide portion 83d. The sealing member 83f is an elastic sealing member that applies frictional resistance to the pressure transmission member 83a through a restoring force generated by deformation. When no external force (in this embodiment, the force applied by the force-applying member 27 transmitted from the advancing / retracting member 11 to the pressure transmission member 83a) is applied to the pressure transmission member 83a, Figure 5 The downward force (e.g., gravity) and the force caused by frictional resistance Figure 5 The upward force is balanced relative to the pressure transmission member 83a, thereby keeping the pressure transmission member 83a in the stop position. Therefore, the material, shape, size, number, and arrangement of the sealing member 83f are set to keep the pressure transmission member 83a in the stop position. In addition, the sealing member 83f can also be a member that, in addition to elasticity, has wear resistance, water resistance, oil resistance, and processability. Thus, the sealing member 83f can suppress the intrusion of rainwater, oil, dust, etc., that would otherwise seep into the inside of the housing 4 from the outside through the gap between the pressure transmission member 83a and the guide portion 83d.

[0087] [Drive Unit 60]

[0088] The drive unit 60 is an electric motor that generates the driving force to move the limiting member 90. A rotary gear 64 is connected to the rotating shaft of the drive unit 60.

[0089] like Figure 3 As shown, driven by the drive unit 60, the front end of the limiting member 90 is positioned at a distance away from the front end of the limiting member 83c and faces the front end of the limiting member 83c. As a result, the engagement state between the advancing / retracting member side member 21 and the limiting member 90 is released, and the fuel cap 120 can be unlocked.

[0090] With the fuel cap 120 open, as follows Figure 2 As shown, the front end of the limiting member 90 contacts the engaged member 21b and / or the limiting member 83c. Additionally, when the driving unit 60 is driven, as... Figure 3 As shown, the front end of the limiting member 90 is positioned at a distance from the front end of the limiting member 83c, opposite to the front end of the limiting member 83c. Thus, the limiting member 90 moves from the first position towards... Figure 4 Movement to the second position shown is restricted. Therefore, in Figure 2 and Figure 3In the position shown (first position), the limiting member 90 is not inserted into the recess 21b1 provided in the engaging member 21b (non-engaged state), and the advancing member 11 is not restricted in movement by the limiting member 90, thus allowing the advancing member 11 to move forward. Furthermore, the second position is equal to the front end of the limiting member 90 engaging in the recess 21b1 provided in the engaging member 21b. Figure 6 The position of the recess 21b1 shown.

[0091] [Moving Component 31]

[0092] like Figure 2 and Figure 3 As shown, the movable member 31 includes a rotating gear 74, a rack 93, a limiting member 90, and a force-applying member 96.

[0093] [Rotating Gear 74]

[0094] Rotary gear 74 is a ring-shaped gear. Rotary gear 74 is a rotational force transmission member that transmits rotational force generated by an electric motor or manually and uses this rotational force to move the moving member 31.

[0095] The rotating gear 74 is an example of a transmission member that transmits the rotational force of the drive unit 60 by meshing with the rotating gear 64, and moves the limiting member 90 by the rotational force. A pinion 75 is provided on the rotating gear 74 coaxially with the rotating gear 74. The pinion 75 meshes with a rack 93 formed on the limiting member 90.

[0096] [Force-applying component 96]

[0097] The force-applying member 96 is disposed, for example, inside the housing 4, within the limiting member 90 and the protrusion formed on the inner side of the rear side wall portion 40b of the housing 4 (from the inner side wall of the housing 4 towards...). Figure 2 The area between the vertically protruding parts of the paper surface. One end of the force-applying member 96 is opposite to the limiting member 90, and the other end of the force-applying member 96 is opposite to the protrusion formed on the rear side wall portion 40b of the housing 4.

[0098] The force-applying member 96 is a helical spring, which generates force to cause the limiting member 90, positioned in the first position, to move towards... Figure 4 or Figure 9 The force that caused the second position to shift, as shown.

[0099] Furthermore, the force-applying component 96 is not limited to a helical spring; it can be any elastic component that generates a force that causes the limiting component 90 to move, such as a leaf spring.

[0100] [Restricting component 90 and rack 93]

[0101] The limiting component 90 is housed in Figure 2The shown housing 4 contains a component that moves between a first position and a second position. The restraining component 90 is capable of moving from the first position toward the second position by a force generated by the force-applying component 96.

[0102] In addition, the limiting member 90 can move by means of the force generated by the force-applying member 96, as well as by the rotational force generated when the drive mechanism (not shown) is manually operated.

[0103] A rack 93 is formed on the limiting member 90. The rack 93 is a gear used to convert rotary motion into linear motion.

[0104] The movement of the limiting member 90 between the first position and the second position is achieved by the rotation of the rotating gear 74 that meshes with the rack 93.

[0105] The first position is a position that allows the advancing / retracting member 11 to move forward. When the limiting member 90 is positioned in the first position, the limiting member 90 does not engage with the engaged member 21b. Figure 6 The recess 21b1 shown engages. Therefore, the retracting member 11, positioned in the retracted position, can be engaged by... Figure 2 The force generated by the force-applying component 27 shown advances.

[0106] The second position is to prevent. Figure 2 The forward position of the advancing / retracting member 11 is shown. The second position is equal to... Figure 6 The position of the front end of the limiting member 90 when it engages with the recess 21b1 provided in the engaging member 21b.

[0107] Thus, when the limiting member 90 is positioned in the second position, the limiting member 90 engages with the recess 21b1 formed in the engaging member 21b, so the advancing member 11 stops in the retracted position and cannot advance.

[0108] [Action of the forward / backward moving device 1]

[0109] Next, refer to Figure 2 , Figure 3 , Figure 4 and Figure 6 This describes the operation of the forward and backward moving device 1 when the fuel tank cover 120 is closed. Figure 2 , Figure 3 , Figure 4 as well as Figure 6 This is a diagram illustrating the operation of the forward and backward moving device 1 when the fuel cover 120 is closed. Figure 4 This diagram shows the state of the retractable moving device 1 when the fuel cap 120 is pressed in and the retractable member 11 moves further in the retracting direction from the retracted position. Figure 6 It is an enlarged representation Figure 4A diagram showing a portion of the forward and backward moving device 1.

[0110] exist Figure 2 The image shows the state of the forward and backward moving device 1 before the fuel cap 120 is pressed in.

[0111] When the fuel cap 120 is not pressed in, the forward / reverse member 11 is positioned in the forward position by the force generated by the force-applying member 27. In addition, when the pressure transmission member 83a is not pressed in by the protrusion 121 provided on the fuel cap 120, it is positioned in the protruding position (forward position) that protrudes from the inner member 83b to the outside of the housing 4.

[0112] At this time, since the engaging member 83e, which extends from the inner member 83b toward the restricting member 21a, and the engaged member 21c, which extends from the restricting member 21a toward the inner member 83b, are engaged with each other, the force generated by the force-applying member 27 is transmitted from the advancing member 11 to the pressing force transmission member 83a.

[0113] In addition, such as Figure 2 As shown, the front end of the limiting member 90 contacts the front end of the limiting member 83c (the portion lower than the portion where the recess 83c is provided). Therefore, the movement of the limiting member 90 from the first position to the second position is restricted.

[0114] In this state, when the fuel cap 120 is pressed in, the advancing / retracting member 11 moves backward against the force generated by the force-applying member 27. When the fuel cap 120 is pressed in slightly, the advancing / retracting member 11 begins to move backward against the force generated by the force-applying member 27.

[0115] When the retracting member 11 moves in the backward direction, the retracting member side member 21 moves in the backward direction together with the retracting member 11. In addition, the engaging member 21c, which extends from the restricting member 21a toward the inner member 83b, moves in the backward direction together with the retracting member 11.

[0116] exist Figure 7 The image shows the state of the forward and backward moving device 1 when the fuel cap 120 is slightly pressed in. Figure 7 The direction of insertion is indicated by a blank arrow. With the fuel cap 120 slightly pressed in, the pressure transmission member 83a is still not pressed in by the protrusion 121 on the fuel cap 120. Therefore, due to the sealing member 83f (see reference 83f) provided between the pressure transmission member 83a and the guide portion 83d... Figure 5 The frictional resistance generated by the pressure transmission member 83a keeps it in the stop position. That is, the pressure transmission member 83a remains stationary in the protruding position (forward position). Similarly, the engaging member 83e, which extends from the inner member 83b toward the limiting member 21a, remains stationary.

[0117] Therefore, with the fuel cap 120 slightly pressed in, the engaged member 21c moves backward, while the engaged member 83e remains stationary. This creates a gap between the engaged member 83e and the engaged member 21c, resulting in a non-engaged state where they are not locked together. Consequently, the force generated by the force-applying member 27 is not transmitted from the advancing / retracting member 11 to the pressing force transmission member 83a.

[0118] As the fuel cap 120 is further pressed in, the retracting member 11 moves backward against the force generated by the force-applying member 27. The engaging member 21c moves backward, while the engaging member 83e remains stationary, thus widening the gap between the engaging member 83e and the engaging member 21c.

[0119] exist Figure 8 The state of the forward and backward moving device 1 is shown when the fuel cap 120 is further pressed in. Figure 8 The direction of insertion is indicated by a blank arrow. As the fuel cap 120 is further pressed in, the retracting member 11 moves backward against the force generated by the force-applying member 27. Additionally, the pressure transmission member 83a is pressed into the protrusion 121 of the fuel cap 120. Consequently, the pressure transmission member 83a moves backward. That is, the retracting member 11 and the pressure transmission member 83a move backward together. While the retracting member 11 and the pressure transmission member 83a move backward together, the gap between the engaging member 83e and the engaged member 21c remains constant.

[0120] exist Figure 4 The diagram shows the forward and backward movement device 1 when the fuel cap 120 is further pressed in. When the fuel cap 120 is further pressed in, the pressure transmission member 83a is pressed into the protrusion 121 of the fuel cap 120 and moves from the front side wall portion 40a to the rear side wall portion 40b of the housing 4, thus the front end of the restraining member 83c moves toward the rear side wall portion 40b of the housing 4. When the front end of the restraining member 83c approaches the rear side wall portion 40b of the housing 4, the front end of the restraining member 90, pressed by the force generated by the force-applying member 96, is inserted into the restraining member 83c. Figure 6 The recess 83c1 is shown. Furthermore, after passing through the recess 83c1 of the restricting member 83c, the front end of the restricting member 90 is inserted into the recess 21b1 formed in the engaging member 21b. Moreover, the position of the front end of the restricting member 90 at this time is equal to the second position.

[0121] In addition, when the fuel cap 120 is further pressed in and the retraction member 11 retracts, the cap locking part 12 rotates and locks itself into the cap locking part 140.

[0122] The above, such as Figure 2 , Figure 4 , Figure 7 and Figure 8 As shown, when the fuel cap 120 is closed, the engaged member 21c moves a distance longer than the engaged member 83e, creating a gap between the engaged member 83e and the engaged member 21c. When the retracting member 11 is in the retracted position, the engaged member 83e and the engaged member 21c are in a non-engaged state.

[0123] Figure 9 This diagram shows the state of the forward and backward moving device 1 when the pressing operation of the fuel cap 120 is completed. Figure 10 It is an enlarged representation Figure 9 A diagram showing a portion of the forward and backward moving device 1. Figure 9 A blank arrow indicates the direction of pressing.

[0124] When the fuel cap 120 is pressed in, the advancing member 11 moves in the forward direction due to the force generated by the force-applying member 27. However, the front end of the limiting member 90 is inserted into the recess 21b1 formed in the engaging member 21b and engages with the recess 21b1, thus restricting the movement of the advancing member 11.

[0125] That is, the forward / reverse member 11 is locked. As a result, the fuel cap 120 is locked while closing the fuel supply opening 2a.

[0126] Furthermore, the force generated by the force-applying member 27 causes the advancing member 11 to move in the forward direction, thereby making the gap between the engaging member 83e and the engaged member 21c smaller than that between the engaging member 83e and the engaged member 21c. Figure 4 The gap shown is narrow, but the engaging member 83e and the engaged member 21c are still in a non-engaged state. Therefore, the force generated by the force-applying member 27 is not transmitted from the advancing member 11 to the pressing force transmission member 83a. At this time, the pressing force transmission member 83a utilizes the sealing member 83f (see reference 83f) provided between it and the guide portion 83d. Figure 5 The frictional resistance generated by the friction keeps it in a stationary position.

[0127] Furthermore, when the fuel cap 120 is fully depressed, the force generated by the force-applying member 27 is not transmitted from the advance / retract member 11 to the pressure transmission member 83a. Therefore, the fuel cap 120 is not pressed from the closed position (closed position) to the open position via the pressure transmission member. The fuel cap 120 remains in the closed position.

[0128] In addition, such as Figure 10 As shown, the front end of the limiting member 90, which is inserted into the recess 83c1 of the limiting member 83c, does not contact the limiting member 83c, but is inserted into the recess 21b1 formed in the engaging member 21b. Therefore, the movement of the limiting member 21a in the forward direction is restricted, thus maintaining... Figure 9 The fuel cap 120 is shown in the closed position.

[0129] Next, refer to Figure 9 and Figure 11 This describes the operation of the forward and backward moving device 1 when the fuel cover 120 is opened. Figure 11 This diagram shows the state of the forward / reverse moving device 1 when the fuel cap 120 is open. Figure 11 The forward direction of the advancing / retreating component 11 is indicated by a blank arrow.

[0130] In making Figure 9 When the fuel cap 120 in the closed state moves from the closed position to the open position, the limiting member 90 can be moved away from the side of the retraction member 11 by driving the drive unit 60 or by using a drive mechanism (not shown) that generates rotational force manually.

[0131] As a result, the front end of the limiting member 90 is pulled out from the recess 21b1 formed in the engaging member 21b, and the movement restriction state of the retracting member 11 in the retracting direction is released. With the movement restriction state thus released, the retracting member 11 moves in the forward direction under the force of the force-applying member 27. At this time, the retracting member 11 moves axially while rotating relative to the housing 4.

[0132] Furthermore, by rotating the retractable member 11, the cover locking part 12 located at the front end of the retractable member 11 also rotates, releasing its locking from the cover locking part 140. In addition, the retractable member 11 pushes the fuel cover 120 upward by moving in the forward direction.

[0133] On the other hand, due to the pressure transmission member 83a being made of the sealing member 83f (see reference) Figure 5 The frictional resistance generated by the movement of the retractable member 11 keeps the member in a stopped position. Therefore, corresponding to the forward movement of the retractable member 11, the gap between the engaging member 83e extending from the inner member 83b towards the restricting member 21a and the engaged member 21c extending from the restricting member 21a towards the inner member 83b narrows, and soon... Figure 11 As shown, the engaging member 83e and the engaged member 21c are engaged with each other. As a result, the force generated by the force-applying member 27 is transmitted from the advancing member 11 to the pressing member 83a, so the pressing member 83a moves together with the advancing member 11.

[0134] The forward / reverse component 11 moves further in the forward direction to the forward position. In this way, the fuel cover 120 is in the open state.

[0135] Additionally, the pressure transmission member 83a moves together with the advance / retract member 11 to a protruding position (advance position) that protrudes from the inner member 83b toward the outside of the housing 4.

[0136] The above, such as Figure 2 , Figure 9 and Figure 11 As shown, when the fuel cap 120 is open, the engaging member 21c moves a distance longer than the engaging member 83e to engage with the engaging member 83e. As a result, the force generated by the force-applying member 27 is transmitted from the advancing / retracting member 11 to the pressing force transmission member 83a, so the pressing force transmission member 83a moves together with the advancing / retracting member 11.

[0137] As described above, the retractable movement device 1 according to an embodiment of the present invention includes: a housing 4; a retractable member 11, one end of which is housed in the housing 4 and the other end of which protrudes from the housing 4, moving forward from the inside of the housing 4 toward the outside and retracting backward from the outside of the housing toward the inside; a force-applying member 27 that applies force to the retractable member 11; a moving member 31 housed in the housing 4 that moves between a first position and a second position, the first position being a position in which the force of the force-applying member 27 can be used to move the retractable member 11 forward, and the second position being a position in which the retractable member 11 is prevented from moving forward; and a locking member 2. 1c, moves together with the advance / retractor 11 inside the housing 4; the pressure transmission member 83a moves from the forward position to the reverse position by the pressing force when the fuel cap 120 is closed; and the engaging member 83e moves together with the pressure transmission member 83a inside the housing 4. The engaging member 83e and the engaged member 21c are engaged when the advance / retractor 11 advances, so that the force of the force-applying member 27 is applied to the pressure transmission member 83a. When the pressure transmission member 83a is in the reverse position, they are disengaged, so that the force of the force-applying member 27 is not applied to the pressure transmission member 83a.

[0138] According to the above structure, when the retracting member 11 moves forward, the engaging member 83e and the engaged member 21c are engaged with each other. The force of the applying member is applied from the retracting member 11 to the pressing force transmission member 83a. Therefore, even without a special member that moves the pressing force transmission member 83a from the pulled-in position (retracted position) to the protruding position (forward position), the pressing force transmission member 83a can move together with the retracting member 11 to the protruding position (forward position). Furthermore, when the retracting member 11 moves backward, the engaging member 83e and the engaged member 21c are disengaged. The force of the applying member is not applied from the retracting member 11 to the pressing force transmission member 83a, so the fuel cap 120 is not pressed by the pressing force transmission member 83a. This prevents the fuel cap 120 from floating off the vehicle body. Furthermore, no gap is created between the fuel cap 120 (which has floated off the vehicle body) and the vehicle body, allowing tools or the like to be inserted, thus improving anti-theft capabilities.

[0139] Furthermore, according to the embodiment of the present invention, when the retracting member 11 retracts in a direction from the outside of the housing 4 toward the inside, the engaging member 21c moves a distance longer than the engaging member 83e to become unengaged with the engaging member 83e. Without adding additional elements for releasing the engaging member 83e and the engaging member 21c from their mutual engagement, a simple structure can be used to make the engaging member 83e and the engaging member 21c unengaged, thus reducing the manufacturing cost of the retracting device 1.

[0140] Furthermore, according to the embodiments of the present invention, when the retractable member 11 moves in a direction from the inside of the housing 4 toward the outside, the engaged member 21c engages with the engaged member 83e by moving a distance longer than the engaged member 83e. Without adding additional elements for engaging the engaged member 83e and the engaged member 21c, a simple structure can be used to engage the engaged member 83e and the engaged member 21c, thus reducing the manufacturing cost of the retractable member 1.

[0141] Furthermore, the retractable movement device 1 according to an embodiment of the present invention further includes: a guide portion 83d for guiding the retractable movement of the pressure transmission member 83a; and a sealing member 83f, which is elastic and disposed between the pressure transmission member 83a and the guide portion 83d. As a result, the pressure transmission member 83a can be held in the stop position more reliably by utilizing the frictional resistance generated by the sealing member 83f, and consequently, the engaging member 83e can be held in the stop position more reliably. Consequently, the structure of the retractable movement device 1 is simplified, allowing the engaging member 83e held in the stop position and the engaged member 21c moving together with the retractable member 11 to be in an engaged state, or conversely, the engaging member 83e and the engaged member 21c to be in a non-engaged state. The reliability of the retractable movement device 1 is improved, and the manufacturing cost of the retractable movement device 1 can be reduced. Furthermore, when the fitting tolerance between the pressure transmission member 83a and the guide portion 83d is set such that the pressure transmission member 83a can be held in the stop position by utilizing the frictional resistance generated between the pressure transmission member 83a and the guide portion 83d, the aforementioned sealing member 83f is not required.

[0142] Furthermore, in embodiments of the present invention, when the retracting member 11 moves backward, the engaging member 21c moves a distance longer than the engaging member 83e to become non-engaged with the engaging member 83e; and when the retracting member 11 moves forward, the engaging member 21c moves a distance longer than the engaging member 83e to become engaged with the engaging member 83e. However, as long as the engaging state of the engaging member 21c and the engaging member 83e is switched to a non-engaged state at a predetermined position during the period from the forward position to the backward position of the retracting member 11, and the non-engaged state of the engaging member 21c and the engaging member 83e is switched to an engaged state at a predetermined position during the period from the backward position to the forward position of the retracting member 11, a structure other than this structural example may also be adopted. For example, the structure could be as follows: the moving direction of the retracting member 11 is set to the axial direction, and one of the engaging members 21c and 83e is configured to rotate about this axis. One member is rotated from a predetermined position in response to the movement of the retracting member 11 to a predetermined position, thereby disengaging the engaging member 21c and the engaging member 83e. Another member is rotated from a rotated position to a predetermined position in response to the movement of the retracting member 11 to a forward position, thereby engaging the engaging member 21c and the engaging member 83e. A cam mechanism is provided in this manner to rotate one member in response to the movement of the retracting member 11. Furthermore, in the embodiments of the present invention, a device for opening the cover by releasing the locking of the retracting member by a limiting member is described as an example. However, for example, a device with a so-called push / press mechanism that opens and closes the cover by the user pushing the cover, causing the retracting member to move back and forth between an open position and a closed position.

[0143] The embodiments disclosed herein should be considered illustrative in all respects and not restrictive. The scope of the invention is not limited to the foregoing description, but is defined by the claims, which are intended to include all modifications within the meaning and scope equivalent to the claims.

[0144] The embodiments of the present invention have been described above. Furthermore, the above description is an example of preferred embodiments of the present invention, and the scope of the present invention is not limited thereto. That is, the description of the structure of the above-described device and the shape of each part is an example, and it is obvious that various modifications and additions can be made to these examples within the scope of the present invention.

[0145] Industrial availability

[0146] The forward and backward moving device involved in this invention is useful as a device that can prevent the cover from floating off the vehicle body.

[0147] Label Explanation

[0148] 1. Forward and backward moving device

[0149] 2. Body

[0150] 2a Oil supply opening

[0151] 4. Shell

[0152] 11. Advancing and retracting components

[0153] 12. Cover card fixing part

[0154] 21. Advancing and retracting components, side components

[0155] 21a Restriction Component

[0156] 21b Engaged component

[0157] 21c Engaged component

[0158] 21b1 concave part

[0159] 27. Force-applying components

[0160] 31 Moving components

[0161] 40a Front sidewall

[0162] 40b Rear side wall

[0163] 60 Drive Unit

[0164] 64 Rotating Gear

[0165] 74 Rotating Gear

[0166] 75 small gears

[0167] 80 Press the pressure transmission section

[0168] 83 Restriction Department

[0169] 83a According to pressure transmission components

[0170] 83b Internal components

[0171] 83c Restriction Component

[0172] 83c1 concave part

[0173] 83d Guiding Section

[0174] 83e Snap-fit ​​component

[0175] 83f Sealing component

[0176] 90 Restriction Components

[0177] 93 Gear

[0178] 96 Force-applying components

[0179] 100 Opening and closing device

[0180] 110 Main Body

[0181] 120 Fuel Cap

[0182] 121 Protrusion

[0183] 130 hinge

[0184] 140 Blanket fixing part

[0185] 160 screw cap.

Claims

1. A forward and backward moving device, comprising: case; The advancing and retracting member has one end housed in the housing and the other end protruding from the housing, advancing in a direction from the inside of the housing to the outside, and retracting in a direction from the outside of the housing to the inside; The force-applying component applies force to the advancing / retracting component; A movable component, housed in the housing, moves between a first position and a second position, wherein the first position is a position in which the force of the force-applying component can be used to advance the retractable component, and the second position is a position in which the retractable component is prevented from advancing. The engaging portion moves together with the advancing / retracting member inside the housing; The pressure transmission component moves from the forward position to the reverse position by the pressure applied when the cover is closed; and The engaging portion moves together with the pressure transmission member inside the housing. The engaging portion and the engaged portion are engaged when the advancing and retracting member moves forward, so that the force of the force-applying member is applied to the pressing pressure transmission member. When the pressing pressure transmission member is in the retracted position, they are disengaged, so that the force of the force-applying member is not applied to the pressing pressure transmission member.

2. The forward and backward moving device according to claim 1, wherein, When the retracting member retracts in a direction from the outside of the housing toward the inside, the engaged portion moves a distance longer than the engaged portion and becomes disengaged from the engaged portion.

3. The forward and backward moving device according to claim 1 or 2, wherein, When the advancing / retracting member moves in a direction from the inside of the housing toward the outside, the engaged portion becomes engaged with the engaged portion by moving a distance longer than the engaged portion.

4. The forward and backward moving device according to claim 1 or 2, wherein, The forward and backward moving device also includes: The guide unit guides the forward and backward movement of the pressure transmission member; and A sealing member, having elasticity, is disposed between the pressure transmission member and the guide portion.

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