Forward and backward moving device

Abstract

To provide an advancing / retreating device capable of suppressing the enlargement of the advancing / retreating device while housing a detection part capable of detecting the position of an advancing / retreating member.SOLUTION: An advancing / retreating device includes a case 10, an advancing / retracting member capable of advancing / retreating relative to the case 10, a detection part 90 capable of detecting a position of the advancing / retreating member, and a regulation mechanism capable of regulating an advancing / retreating movement of the advancing / retreating member relative to the case 10. The regulation mechanism has a drive part 110 with a drive part main body 112 and a drive shaft 114, a lock part 130 for regulating the movement of the advancing / retreating member in the advancing / retreating direction, and a transmission part 120 capable of transmitting the rotational force of the drive shaft 114 to the lock part 130 and moving the lock part 130 so as to regulate the movement of the advancing / retreating member in the advancing / retreating direction. When the drive part 110 and the detection part 90 are housed in the case 10, the detection part 90 is sandwiched between a bottom surface of the case 10 and the drive part main body 112.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to a reciprocating movement device including a case and a reciprocating member that can reciprocate with respect to the case.

Background Art

[0002] In vehicles such as automobiles, for example, a fuel lid or a charging lid that covers a fuel filling port is known. For the opening and closing devices of these lids, a reciprocating movement device that reciprocates a reciprocating member between a pushing position for closing the lid and a protruding position for opening the lid is used.

[0003] For example, the reciprocating movement device of Patent Document 1 positions a reciprocating member to a forward position where the reciprocating member reciprocates with respect to a case and the fuel lid is in an open state, and a backward position where the fuel lid is in a closed state. Then, when the fuel lid is in the closed state, that is, when the reciprocating member is in the backward position, the reciprocating member is locked by a restricting member to restrict its reciprocating movement. Further, the reciprocating movement device includes a lock position detection unit that detects the position where the reciprocating member is locked.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] However, providing the lock position detection unit disclosed in Patent Document 1 requires a structure for holding the lock position detection unit, resulting in an increase in the number of parts. Furthermore, since a space for arranging the lock position detection unit is also required, there is a risk that the reciprocating movement device becomes larger.

[0006] An object of the present invention is to provide a reciprocating movement device that can suppress an increase in the size of the reciprocating movement device while accommodating a detection unit capable of detecting the position of the reciprocating member.

Summary of the Invention

[0007] A reciprocating device according to one aspect of the present invention is: The case and, A reciprocating member that can move back and forth relative to the case, A detection unit capable of detecting the position of the retractable member, A restricting mechanism capable of restricting the forward and backward movement of the forward and backward member relative to the case, A reciprocating movement device equipped with, The aforementioned iPhone mechanism, A drive unit having a drive unit body and a drive shaft, A locking mechanism that restricts the movement of the forward and backward member in the forward and backward direction, The system includes a transmission unit that transmits the rotational force of the drive shaft to the locking unit and moves the locking unit so as to restrict the movement of the reciprocating member in the reciprocating direction, In a state where the drive unit and the detection unit are housed in the case, a clamping structure is configured in which the detection unit is clamped between the bottom surface of the case and the drive unit body. [Effects of the Invention]

[0008] According to the present invention, it is possible to detect the position in which the reciprocating member is locked, while suppressing an increase in the size of the reciprocating movement device. [Brief explanation of the drawing]

[0009] [Figure 1] This is an example of a plan view of the reciprocating device according to this embodiment, showing the case where the reciprocating member is in the retracted position. [Figure 2] This is an example of a perspective view of the reciprocating device according to this embodiment, where (A) is a diagram showing the reciprocating member in the retracted position, and (B) is a diagram showing the reciprocating member in the forward position. [Figure 3](A) An example of a perspective view showing a configuration in which the reciprocating device according to an embodiment of the present invention is applied to a fuel lid opening and closing device, and (B) An example of a diagram for explaining the relationship between the lid locking portion of the reciprocating member according to this embodiment and the lid-locked portion of the fuel lid. [Figure 4] This is an example of an exploded perspective view showing the overall configuration of the forward / backward movement device according to this embodiment. [Figure 5] This is an example of an exploded perspective view showing the overall configuration of the forward / backward movement device according to this embodiment. [Figure 6] This is an example of a perspective view showing the internal structure of the case according to this embodiment, (A) a diagram showing the state in which various members have not been assembled, and (B) a diagram showing the state in which the reciprocating member, biasing member, reciprocating control member, guide pin, pressing member, and transmission part have been mainly assembled. [Figure 7] This is an example of a cross-sectional view of the reciprocating device according to this embodiment, where (A) is a cross-sectional view of line AA shown in Figure 1, and (B) is a perspective view of the cross-sectional view of line AA shown in Figure 1. [Figure 8] This is an example of a perspective view showing the internal structure of the case according to this embodiment, (A) a diagram showing the state in which various components are not assembled, and (B) a diagram showing the state in which the regulating mechanism is assembled. [Figure 9] An example of a cross-sectional view of the reciprocating device according to this embodiment is shown as follows: (A) a cross-sectional view of the line BB shown in Figure 1, and (B) a perspective view of the cross-sectional view of the line BB shown in Figure 1. [Figure 10] This is an example of a plan view showing the internal state of the reciprocating device according to this embodiment, (A) a diagram showing the lid open state, and (B) a diagram showing the first stroke state. [Figure 11] This is an example of a plan view showing the internal state of the reciprocating device according to this embodiment, where (A) is a diagram showing the reciprocating member in the retracted position, and (B) is a diagram showing the second stroke state. [Figure 12]An example of a diagram for explaining the regulation of the backward movement of the advancing and retreating member according to the present embodiment, where (A) is a plan view showing the internal state of the advancing and retreating device when the advancing and retreating member is restricted from moving in the backward direction, and (B) is a cross-sectional view taken along the line C-C shown in (A).

Embodiments for Carrying Out the Invention

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The advancing and retreating device of the present embodiment moves the advancing and retreating member forward and backward with respect to the case. In the present embodiment, as one application example, an opening and closing device for a fuel lid will be described. However, the application example of the advancing and retreating device of the present embodiment is not limited to the fuel lid, and may be other opening and closing devices such as an opening and closing device for a charging lid, for example.

[0011] [1. Outline of the Advancing and Retreating Device 1] First, the outline of the advancing and retreating device 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is an example of a plan view of the advancing and retreating device 1, and is a view when the advancing and retreating member 41 is in the backward position. FIG. 2 is an example of a perspective view of the advancing and retreating device 1, where (A) is a view when the advancing and retreating member 41 is in the backward position, and (B) is a view when the advancing and retreating member 41 is in the forward position.

[0012] In this specification, for convenience, the positive direction (the direction in which the arrow points) in the X direction shown in each figure (for example, FIG. 2) is referred to as the right direction or the right side, and the negative direction in the X direction shown in each figure is referred to as the left direction or the left side. Also, the positive direction in the Y direction shown in each figure is referred to as the forward direction, the negative direction in the Y direction shown in each figure is referred to as the backward direction, and when both the forward direction and the backward direction are included, it is referred to as the advancing and retreating direction. Further, the positive direction side (the direction in which the arrow points) in the Z direction shown in each figure is referred to as the bottom surface direction.

[0013] In the present embodiment, the reciprocating member 41 can move between a forward position, a backward position, and a stroke position which is further in the backward direction than the backward position. In the present embodiment, the stroke position includes a first stroke position and a second stroke position, which will be described later.

[0014] As shown in FIG. 1, the reciprocating motion device 1 of the present embodiment has a case 10 that is substantially square in plan view, but the shape of the case 10 is not limited to being substantially square. The reciprocating member 41 is configured to be able to reciprocate with respect to the case 10.

[0015] Although details will be described later, as shown in FIG. 2, the reciprocating member 41 has a rod portion 42 and a lid locking portion 44 formed at an end portion on the forward direction side. When the reciprocating member 41 reciprocates with respect to the case 10, it rotates about the axial direction of the rod portion 42. When the reciprocating member 41 rotates, the lid locking portion 44 rotates accordingly, and the orientation (i.e., angle) of the lid locking portion 44 changes. As shown in FIG. 2, the orientation of the lid locking portion 44 is different when the reciprocating member 41 is in the backward position (see FIG. 2(A)) and when the reciprocating member 41 is in the forward position (see FIG. 2(B)).

[0016] [2. Opening and closing device 200 to which the reciprocating motion device 1 is applied] Regarding the opening and closing device 200 to which the reciprocating motion device 1 according to the present embodiment is applied, including the operation of the opening and closing device 200, it will be described with reference to FIG. 3. FIG. 3(A) is an example of a perspective view showing a configuration in which the reciprocating motion device 1 according to the embodiment of the present invention is applied to a fuel lid opening and closing device, and FIG. 3(B) is an example of a diagram for explaining the relationship between the lid locking portion 44 of the reciprocating member 41 and the lid locking portion 240 of the fuel lid.

[0017] As shown in Figure 3(A), the opening / closing device 200 is a device that opens and closes the lid of the opening that houses the vehicle's fuel filler port, and the reciprocating device 1 of this embodiment is applied to this opening / closing device 200. The opening / closing device 200 is a so-called fuel inlet box, and is a device installed in the fuel filler port 2a of the vehicle body 2 for injecting fuel into the vehicle's fuel tank.

[0018] The opening and closing device 200 includes a box body 210 attached to the fuel supply opening 2a of the vehicle body 2, a fuel lid 220 which is a lid that closes the fuel supply opening 2a, a hinge 230 which pivotally supports the fuel lid 220, and a reciprocating device 1. In this embodiment, when the reciprocating member 41 is in the forward position, the fuel lid 220 is in an open state, and the state of the reciprocating device 1 at this time is referred to as the lid open state.

[0019] The box body 210 is attached to the fuel supply opening 2a and forms a fuel supply chamber that surrounds the fuel supply pipe on the fuel supply side. The box body 210 shown in Figure 3 is formed in a cylindrical shape and has two openings (only one opening 212 is shown in Figure 3), one of which openings 212 is attached continuously to the fuel supply opening 2a, and one end of a fuel supply pipe (not shown) is fitted into the other opening (not shown). One end of the fuel supply pipe is positioned to protrude into the box body 210 and has a fuel supply port. The fuel supply port is closed by a screw cap 260, as shown in Figure 1. The screw cap 260 is removable when refueling.

[0020] The fuel lid 220 is provided with a lid-locking portion 240 into which the lid-locking portion 44 of the retractable member 41 can be locked. The lid-locking portion 240 is a hole with an opening that allows the lid-locking portion 44 to pass through when the lid-locking portion 44 is at a predetermined angle (the angle shown by the dashed line in Figure 3(B)). In this embodiment, the predetermined angle is the angle when the retractable member 41 is in the forward position (the angle of the lid-locking portion 44 shown in Figure 2(B)). Inside the lid-locking portion 240, there is a rotation assist portion 242 which serves as a space into which the lid-locking portion 44 can rotate.

[0021] For example, when the lid locking portion 44 is at a predetermined angle, it can pass through the opening of the lid locking portion 240. After passing through the lid locking portion 240, it rotates around the axis of the rod portion 42 in the rotation assist portion 242, reaching a specific angle (the angle shown by the solid line in Figure 3(B)).

[0022] With this type of opening and closing device 200, when the fuel lid 220 is closed, the fuel lid 220 pushes the retractable member 41 inward into the case 10, causing the retractable member 41 to retract inward into the vehicle body 2. When the fuel lid 220 is about to close and comes into contact with the lid locking portion 44 of the retractable member 41, the lid locking portion 44 is at a predetermined angle (the angle shown by the dashed line in Figure 3(B)), so it passes through the opening of the lid locking portion 240 and enters the interior of the lid locking portion 240. Furthermore, as the retractable member 41 retracts, the lid locking portion 44 located inside the lid locking portion 240 rotates and its angle changes to a specific angle (the angle shown by the solid line in Figure 3(B)), so the lid locking portion 44 locks into the inner surface of the lid locking portion 240. As a result, the fuel lid 220 is closed. In this embodiment, when the retractable member 41 is in the retracted position, the fuel lid 220 is in a closed state, and this state of the retractable movement device 1 is referred to as the lid closed state.

[0023] When the fuel lid 220 is closed, the reciprocating member 41 moves to a first stroke position, which is further retracted than the retracted position, and then moves to the retracted position, so that the fuel lid 220 is closed (lid closed state). In this embodiment, the state of the reciprocating device 1 when the reciprocating member 41 is in the first stroke position is referred to as the first stroke state.

[0024] Furthermore, when the fuel lid 220 is pressed while the lid is closed, the fuel lid 220 pushes the reciprocating member 41 further inward into the case 10. At this time, the reciprocating member 41 can move from the retracted position to the second stroke position. In this embodiment, the state of the reciprocating device 1 when the reciprocating member 41 is in the second stroke position is referred to as the second stroke state.

[0025] In the lid-closed state, when the fuel lid 220 is closed, the movement of the forward-reverse control member 60 (see, for example, Figure 4 described later) is restricted by the guide pin 80, which will be described in detail later, and consequently the forward-reverse member 41 cannot move in the forward direction.

[0026] In the lid-closed state, the locking portion 130 of the restricting mechanism 100, described later, can also restrict further movement of the retractable member 41 in the retracting direction (i.e., movement to the stroke state). In this embodiment, the state in which the movement of the retractable member 41 to the stroke state is restricted in the lid-closed state is referred to as the "lid-closed locked state," and the state in which the movement of the retractable member 41 to the stroke state is not restricted is referred to as the "lid-closed unlocked state."

[0027] In the lid-closed locked state, even if the reciprocating member 41 is pressed inward towards the vehicle body 2, i.e., in the reversing direction inside the reciprocating movement device 1, it will not move in the reversing direction because its movement in the reversing direction is restricted. On the other hand, in the lid-closed unlocked state, when the reciprocating member 41 is pressed inward towards the reversing direction inside the reciprocating movement device 1, the restriction on its movement in the reversing direction is released. When the restriction on the reciprocating member 41's movement in the forward direction is released, a biasing force acts on the reciprocating member 41, causing it to move forward outward from the vehicle body 2. At this time, the lid locking portion 44 of the reciprocating member 41 rotates to a predetermined angular position, releasing the lock between the lid locking portion 44 and the lid locking portion 240. This causes the fuel lid 220 to open. When the fuel lid 220 is open, the reciprocating member 41 is in the forward position.

[0028] [3. Overall configuration of the forward / backward movement device 1] The overall configuration of the reciprocating movement device 1 according to this embodiment will be described with reference to Figures 4 and 5. Both Figures 4 and 5 are examples of exploded perspective views showing the overall configuration of the reciprocating movement device 1. The exploded perspective view shown in Figure 4 and the exploded perspective view shown in Figure 5 are from different directions in which the reciprocating movement device 1 is viewed.

[0029] As shown in Figures 4 and 5, the reciprocating movement device 1 includes a case 10 that houses and holds the various components that make up the reciprocating movement device 1.

[0030] The case 10 has an opening 11 on its planar side. Various components are housed and assembled through the opening 11 of the case 10. After the various components are housed and assembled inside the case 10, the cover 38 is placed over the opening 11 of the case 10. In this way, the opening 11 of the case 10 is closed. The assembly of the various components into the case 10 will be described later.

[0031] The reciprocating device 1 mainly comprises a reciprocating mechanism 40, a restricting mechanism 100 capable of restricting the movement of the reciprocating mechanism 40 in the reciprocating direction, a detection unit 90 capable of detecting whether the lid is open or not, a case 10, and a cover 38. In this embodiment, the restricting mechanism 100 can restrict the movement of the reciprocating mechanism 40 in the retracting direction. The case 10 can accommodate the reciprocating mechanism 40, the restricting mechanism 100, and the detection unit 90. The reciprocating mechanism 40 is housed relatively on the right side within the case 10. The restricting mechanism 100 is housed relatively on the left side within the case 10.

[0032] [3-1. Advancement / retraction mechanism 40] The reciprocating mechanism 40 is a mechanism configured to move back and forth in the forward and backward directions relative to the case 10. The reciprocating mechanism 40 mainly comprises a reciprocating member 41, a biasing member 50 that biases the reciprocating member 41 toward the forward direction, a reciprocating control member 60, and a guide pin 80.

[0033] (Advancing / retracting member 41) As described above, the reciprocating member 41 is a member that can move back and forth relative to the case 10, and has a cylindrical rod portion 42 and a lid locking portion 44 formed at the end of the rod portion 42. In this embodiment, the reciprocating member 41 is positioned such that the direction of movement of the reciprocating member 41 (forward direction and backward direction) coincides with the axial direction of the rod portion 42.

[0034] The rod portion 42 has an engaged portion 48 that engages with an engaging portion 13 (see, for example, Figure 6 described later) provided on the case 10, on the side of the axial center that is in the retraction direction. This engaged portion 48 is formed as a helical groove along the axial direction. Therefore, when the retracting member 41 moves in the retraction direction, it moves while rotating relative to the case 10.

[0035] The rod portion 42 has an annular groove 46 in its axial center. This annular groove 46 is formed perpendicular to the axial direction of the rod portion 42 and in the circumferential direction, and functions as a fitting portion into which the reciprocating control member 60, described later, is fitted.

[0036] (Biasing member 50) The biasing member 50 biases the reciprocating member 41 toward the forward direction relative to the case 10. In this embodiment, the biasing member 50 is, for example, a coil spring.

[0037] (Movement control member 60) The reciprocating control member 60, together with the guide pin 80 and the pressing member 84, is a member capable of controlling the movement of the reciprocating member 41 in the reciprocating direction and restricting the movement of the reciprocating member 41 in the reciprocating direction. The reciprocating control member 60 is configured to accommodate the portion of the rod portion 42 of the reciprocating member 41 that is on the retraction side of the annular groove 46. Therefore, the reciprocating member 41 and the reciprocating control member 60 can be made compact.

[0038] The reciprocating control member 60 has a flat guide portion forming surface 62 arranged along the reciprocating direction. In this embodiment, the guide portion forming surface 62 is a surface parallel to the bottom surface of the case 10. A groove serving as a guide portion 64 is formed on the planar side (i.e., the negative side in the Z direction) of the guide portion forming surface 62. As will be described in detail later, in this embodiment, the guide portion 64 is a groove that allows the tip of the guide pin 80 to move along the guide portion 64 while being pressed.

[0039] The reciprocating control member 60 has a guided portion 66 whose movement in the reciprocating direction is guided by a reciprocating control member guide portion 14 provided in the case 10, which will be described later. In this embodiment, the guided portion 66 is a plate-shaped member on the left side of the reciprocating control member 60, into which the end on the bottom side can be fitted into a groove on the case 10 that serves as the reciprocating control member guide portion 14. The guided portion 66 has a recess 68 through which the lock portion 130, described later, can pass in the left-right direction. Furthermore, the guided portion 66 is provided at the left end on the retraction side and further in the retraction direction than the recess 68, and is capable of activating the switch 92 of the detection unit 90.

[0040] The reciprocating control member 60 has a flat plate-shaped fitting surface 70 on which a fitting portion 72 is formed that fits into an annular groove 46 provided in the rod portion 42 of the reciprocating member 41. When the reciprocating member 41 moves in the reciprocating direction with the fitting portion 72 fitted into the annular groove 46, the reciprocating control member 60 moves in the reciprocating direction along with the movement of the reciprocating member 41. Furthermore, the fitting portion 72 is configured so that when fitted into the annular groove 46, the reciprocating member 41 and the reciprocating control member 60 can rotate relative to each other around the axis of the rod portion 42.

[0041] When the fitting portion 72 is fitted into the annular groove 46, the portion of the rod portion 42 of the retractable member 41 that is on the side of the retraction direction relative to the annular groove 46 is housed in the retraction control member 60. Furthermore, as the fitting portion 72 is fitted into the annular groove 46, the retraction control member 60 moves in the retraction direction in conjunction with the movement of the retractable member 41 in the retraction direction.

[0042] As described above, the reciprocating member 41 rotates relative to the case 10 when it moves in the reciprocating direction. The reciprocating control member 60 moves in the reciprocating direction along with the reciprocating member 41, but the guided portion 66 moves in the reciprocating direction along the reciprocating control member guide portion 14. Therefore, the reciprocating control member 60 moves in the reciprocating direction along with the reciprocating member 41 so as not to rotate relative to the case 10.

[0043] (Guide pin 80) The guide pin 80 is a longitudinal member with hook-shaped bends at both ends, and has the function of restricting the movement of the reciprocating member 41 in the reciprocating direction. The guide pin 80 is positioned on the planar side of the reciprocating control member 60 such that its longitudinal direction is parallel to the reciprocating direction. The guide pin 80 is pressed toward the bottom by the pressing member 84.

[0044] [3-2. Regulatory Organization 100] The regulating mechanism 100 mainly comprises a drive unit 110, a transmission unit 120 that transmits the driving force from the drive unit 110 to the lock unit 130, and a lock unit 130 that restricts the movement of the reciprocating member 41 in the reciprocating direction. In this embodiment, the lock unit 130 restricts the movement of the reciprocating member 41 in the retraction direction.

[0045] (Drive unit 110) The drive unit 110 includes a drive unit body 112 as a drive source and a drive shaft 114 that rotates axially by the driving force from the drive unit body 112. In this embodiment, the drive unit body 112 as a drive source is, for example, a motor, and the drive shaft 114 is, for example, a worm gear.

[0046] (Transmission section 120) The transmission unit 120 is supported by a transmission unit support shaft 21 that is erected vertically from the bottom surface of the case 10 in the planar direction, and is rotatable about this transmission unit support shaft 21. The transmission unit support shaft 21 is perpendicular to the drive shaft 114. In this embodiment, the transmission unit 120 is a helical gear and meshes with the worm gear which is the drive shaft 114. In this way, the driving force from the drive unit body 112 is converted into a rotational force in the rotational direction with the transmission unit support shaft 21 as the axis of rotation. In addition, a swinging part 124 is provided on the retraction side of the transmission unit 120 that swings left and right in accordance with the rotation of the transmission unit 120.

[0047] When the retractable member 41 is in the retracted position, the locking part 130 can move in the left-right direction to restrict or release the retractable control member 60 and, consequently, the retractable member 41 from moving in the retracted direction. In this embodiment, when the locking part 130 moves to the right, the retractable member 41 is restricted from moving in the retracted direction, and when the locking part 130 moves to the left, the above restriction is released.

[0048] (Lock part 130) The locking portion 130 is a rod-shaped member extending in the left-right direction and is positioned on the retraction side of the transmission portion 120. The left end of the locking portion 130 is provided with an engaged portion 132 that engages with the swinging portion 124 provided on the transmission portion 120.

[0049] The locking portion 130 has a recessed release portion 138 formed in the center in the left-right direction, a first restricting portion 134 formed to the left of the release portion 138, and a second restricting portion 136 formed to the right of the release portion 138. When the locking portion 130 moves to the right in a plan view, and the first restricting portion 134 engages with the recess 68 provided in the guided portion 66 of the reciprocating control member 60, the movement of the reciprocating member 41 in the retraction direction is restricted. In this way, when the recess 68 and the first restricting portion 134 engage, the movement of the reciprocating member 41 in the retraction direction is restricted, so the recess 68 functions as a restricted portion. When the recess 68 and the first restricting portion 134 engage, the second restricting portion 136 comes into contact with the retraction direction side surface 75 (see, for example, Figure 4) at the right end of the fitting portion forming surface 70. Therefore, when a force is applied to the retraction member 41 and, consequently, the retraction control member 60 in the retraction direction, this force can be applied to both the left and right sides.

[0050] [3-3. Detection Unit 90] The detection unit 90 is a rectangular parallelepiped in plan view and has a switch 92 on its right side. When the aforementioned operating unit 76, which is provided on the guided portion 66 of the reciprocating control member 60, faces the switch 92, the operating unit 76 presses the switch 92, and the switch 92 is activated. The detection unit 90 is positioned so that the operating unit 76 and the switch 92 face each other when the lid is open. In this embodiment, the detection unit 90 is located in the center of the case 10, directly below the drive unit body 112 (i.e., in a position close to the drive unit body 112 on the bottom side), so that the operating unit 76 and the switch 92 face each other. As described above, the lid is open when the reciprocating member 41 is in the forward position, and when the reciprocating member 41 moves from the forward position toward the backward direction, the operating unit 76 and the switch 92 no longer face each other, and the operation of the switch 92 by the operating unit 76 is released. In this way, the detection unit 90 can detect that the lid is open.

[0051] Furthermore, if the operating part 76 and the switch 92 are configured to face each other at a position on the forward-moving side of the center, it becomes necessary to position the operating part 76 on the forward-reverse control member 60 further on the forward-moving side. If the operating part 76 is positioned further on the forward-moving side, it is necessary to position the operating part 76 on the forward-reverse control member 60 so that the operating part 76 and the locking part 130 do not interfere with each other within the range of movement of the forward-reverse member 41. In that case, the range of movement of the forward-reverse member 41 may be limited, and in this case, it may not be possible to secure a sufficient amount of movement to reach the stroke state.

[0052] Therefore, in this embodiment, when the lid is open, the operating part 76 and the switch 92 are configured to face each other on the side of the locking part 130 that is in the retraction direction. This makes it possible to ensure a sufficient amount of movement for the retracting member 41 while avoiding interference between the locking part 130 and the operating part 76.

[0053] [3-4. Case 10] Case 10 is a box-shaped member having a rectangular opening 11 in plan view. The wall portion 28 of case 10 on the forward direction side is provided with an opening 29 through which a part of the reciprocating member 41 passes.

[0054] The case 10 has a retraction member housing section 12 on the retraction side of the opening 29 that houses and holds the retraction member 41 and the retraction control member 60. In the retraction member housing section 12, an engagement portion 13 (see, for example, Figure 6, described later) is provided on the bottom surface of the case 10, projecting toward the planar side.

[0055] Case 10 has a reciprocating member guide portion 14 that can guide the movement of the reciprocating member 60 in the reciprocating direction when the reciprocating member 41 and the reciprocating control member 60 are housed in it. In this embodiment, the reciprocating control member guide portion 14 is a groove formed along the reciprocating direction, for example, at the left end of the reciprocating member housing portion 12.

[0056] Case 10 is provided with a spring holding portion 22 on the retraction side of the retraction member housing portion 12, which holds the rear end of the coil spring serving as the biasing member 50. On the retraction side of the spring holding portion 22, a guide pin holding portion 24 is provided, which holds the base end (retraction side end) of the guide pin 80. Near the guide pin holding portion 24, a pressing member holding portion 26 is provided, which holds the pressing member 84 described later.

[0057] Case 10 has a rectangular recess 15 capable of housing the detection unit 90, located to the left of the retractable member housing section 12 and in the center in the retractable direction. Two axial detection unit support sections 32 are erected vertically in the recess 15, extending from the bottom surface 16 of case 10 in the recess 15 toward the planar direction. An electrode 34 for the detection unit, which is connected to the detection unit 90, is provided on the bottom surface 16 of case 10 in the recess 15.

[0058] Case 10 has a transmission unit holding portion 20 capable of holding the transmission unit 120, located on the forward side of the recess 15. A transmission unit support shaft 21 is erected on the transmission unit holding portion 20 perpendicular to the bottom surface of Case 10, extending in a planar direction from the bottom surface of Case 10.

[0059] The case 10 has a locking support portion 31 that can support the locking portion 130, located on the forward side of the recess 15 and on the backward side of the transmission portion holding portion 20. In this embodiment, the case 10 is a plate-shaped member erected vertically from the bottom surface of the case 10 in the planar direction. The locking support portion 31 supports the locking portion 130, which moves in the left-right direction, from the backward side so that the locking portion 130 can slide.

[0060] The case 10 has a drive unit body holding portion 17 for holding the drive unit body 112 and a drive shaft holding portion 19 for holding the drive shaft 114, located on the planar side of the recess 15.

[0061] [3-4. Cover 38, etc.] The cover 38 is a component that closes the opening 11 of the case 10 after the various components have been housed in the case 10. The cover 38 is provided with a cover opening 39. A locking mechanism 142, which can be connected to the rotating gear 122, passes through this cover opening 39. The locking mechanism 142 is connected to a locking mechanism operating unit 140 on the outside of the cover 38.

[0062] [4. Assembling various components into case 10] The assembly of various components into the case 10 will be explained mainly with reference to Figures 6 to 9. First, the assembly of the reciprocating mechanism 40 will be explained mainly with reference to Figures 6 and 7. Next, the assembly of the detection unit 90 and the regulating mechanism 100 will be explained mainly with reference to Figures 8 and 9.

[0063] (Assembly of the retraction mechanism 40) Figure 6 is an example of a perspective view showing the internal structure of case 10, where (A) a diagram showing the state in which various components are not assembled, and (B) a diagram showing the state in which the reciprocating member 41, biasing member 50, reciprocating control member 60, guide pin 80, pressing member 84, detection unit 90, transmission unit 120, and locking unit 130 are mainly assembled.

[0064] The retractable member 41 is positioned such that the rod portion 42 penetrates the opening 29, with the lid locking portion 44 located outside the case 10. Inside the case 10, the retractable member 41 is housed in the retractable member housing portion 12 such that the engaged portion 48 (see Figures 4 and 5) and the engaging portion 13 (see Figures 4 and 5) provided on the rod portion 42 engage with each other.

[0065] The reciprocating control member 60 can move in the reciprocating direction along with the reciprocating member 41 by fitting its fitting portion 72 into the annular groove 46 from the planar side. The bottom end of the guided portion 66 of the reciprocating control member 60 is slidably fitted into the reciprocating control member guide portion 14, which is formed as a groove. When the reciprocating control member 60 moves in the reciprocating direction along with the reciprocating member 41, the reciprocating member 41 rotates around the axis of the rod portion 42 relative to the case 10, but the bottom end of the guided portion 66 of the reciprocating control member 60 is guided by the reciprocating control member guide portion 14 so that the reciprocating control member 60 does not rotate relative to the case 10. Therefore, the reciprocating control member 60 can be stably moved in and out along with the reciprocating member 41 moving in the reciprocating direction.

[0066] The coil spring, acting as the biasing member 50, is externally mounted on a shaft portion 52 that is coaxial with or parallel to the rod portion 42 of the reciprocating member 41, and both ends (the end on the forward direction side and the end on the backward direction side) are fixed to the reciprocating member 41 and the case 10. In this embodiment, the forward-direction end of the coil spring acting as the biasing member 50 is fixed (held) to the backward-direction end of the reciprocating member 41, and the backward-direction end of the coil spring acting as the biasing member 50 is fixed (held) to the spring holding portion 22. As a result, the biasing member 50 can bias the reciprocating member 41 toward the forward direction.

[0067] The guide pin 80 is held at its base end by the guide pin holding portion 24 and pressed from the planar side toward the bottom by the pressing member 84 held by the pressing member holding portion 26. Therefore, the forward end 82 of the guide pin 80 (hereinafter, the "forward end 82" will be simply referred to as "end 82") is pressed against the guide portion 64 formed on the guide portion forming surface 62 of the reciprocating control member 60.

[0068] As shown in Figure 6(B), the guide section 64 has a first position 64A, a second position 64B, a third position 64C, and a fourth position 64D. Details of the first position 64A, the second position 64B, the third position 64C, and the fourth position 64D will be described later.

[0069] Figure 7 is an example of a cross-sectional view of the reciprocating movement device 1, where (A) is a cross-sectional view along line AA shown in Figure 1, and (B) is a perspective view of the cross-sectional view along line AA shown in Figure 1. In Figure 7, the reciprocating member 41 is in the retracted position.

[0070] As the reciprocating member 41 moves in the reciprocating direction, the engaging portion 13 and the engaged portion 48 engage while the member moves back and forth, causing the rod portion 42 to rotate axially as it moves. Therefore, the orientation of the lid locking portion 44 changes as the reciprocating member 41 moves back and forth.

[0071] Furthermore, when the reciprocating member 41 moves in the reciprocating direction, the end portion 82 of the guide pin 80 moves along the guide portion 64 formed on the flat surface of the reciprocating control member 60. As described above, the end portion 82 of the guide pin 80 is pressed against the guide portion 64 by the pressing member 84. Therefore, when the end portion 82 of the guide pin 80 moves along the guide portion 64, it is possible to prevent the end portion 82 of the guide pin 80 from falling off the guide portion 64.

[0072] Furthermore, the end portion 82 of the guide pin 80 can move from the first position 64A to the second position 64B, from the second position 64B to the third position 64C, from the third position 64C to the fourth position 64D, and from the fourth position 64D to the first position 64A. Movement in the reverse direction is not possible due to the step formed in the guide portion 64.

[0073] When the end 82 of the guide pin 80 is in the first position 64A, the reciprocating member 41 is in the forward position. When the end 82 of the guide pin 80 is in the third position 64C, the reciprocating member 41 is in the retracted position. When the end 82 of the guide pin 80 is in the second position 64B or the fourth position 64D, the reciprocating member 41 is in the stroke position.

[0074] (Assembly of the detection unit 90 and the regulatory mechanism 100) Figure 8 is an example of a perspective view showing the internal structure of case 10, where (A) a view showing the case before the various components are assembled, and (B) a view showing the case with the regulating mechanism 100 assembled. Note that Figure 8 is viewed from a different direction than the perspective view shown in Figure 6.

[0075] The case 10 is provided with an outlet hole 30 for routing wiring (not shown) that is connected to electrodes (drive unit electrode 33 and detection unit electrode 34, described later) for supplying power to the detection unit 90 and the drive unit body 112.

[0076] The detection unit 90 is housed in the recess 15 so as to contact the bottom surface 16 of the case 10 in the recess 15. At this time, two detection unit support parts 32 pass through two through holes provided in the detection unit 90, and the detection unit 90 is supported. Once housed in the recess 15, the detection unit 90 is connected to the detection unit electrode 34, and power is supplied from outside the reciprocating device 1 through wiring led out from the outlet hole 30.

[0077] The locking portion 130 is in contact with the bottom surface of the case 10 and is supported by the locking portion support portion 31 so that it can slide against the locking portion support portion 31 when moved in the left-right direction. The transmission portion 120 is supported by the transmission portion support shaft 21, which is erected vertically from the bottom surface of the case 10 in the planar direction. When the locking portion 130 is supported by the locking portion support portion 31 and the transmission portion 120 is supported by the transmission portion support shaft 21, the oscillating portion 124 (see Figure 4) provided on the transmission portion 120 engages with the engaged portion 132 (see Figure 4) provided on the left end of the locking portion 130. When the rotating gear 122 of the transmission portion 120 rotates, the oscillating portion 124 acts on the engaged portion 132 in the left-right direction, causing the locking portion 130 to move in the left-right direction.

[0078] After the detection unit 90, the locking unit 130, and the transmission unit 120 are housed in the case 10, the drive unit 110 is housed in the case 10. Specifically, the drive unit 110 is held in place by the drive unit body holding unit 17 so as to be tilted at a predetermined angle, and is also held by a receiving unit (not reference numeral) on the retraction side, and the drive shaft 114 is held by the drive shaft holding unit 19. When the drive unit body 112 is held by the drive unit body holding unit 17 and the receiving unit on the retraction side, it is connected to the drive unit electrode 33, and power is supplied from outside the retraction device 1 through wiring led out from the outlet hole 30. Furthermore, when the opening 11 of the case 10 is closed with the cover 38 while the drive unit body 112 is held in place in the case 10, the drive unit body 112 is sandwiched between the cover 38 and the bottom surface 18 of the drive unit body holding unit 17 inside the case 10.

[0079] Figure 9 is an example of a cross-sectional view of the reciprocating movement device 1, where (A) is a cross-sectional view along line BB shown in Figure 1, and (B) is a perspective view of the cross-sectional view along line BB shown in Figure 1. For convenience, the locking mechanism 140 is not shown in Figures 9(A) and (B).

[0080] As shown in Figures 9(A) and (B), when the detection unit 90 is housed in the recess 15, the detection unit 90 is positioned such that its bottom surface abuts against the bottom surface 16 of the case 10 in the recess 15, and its planar surface is flush with the bottom surface 18 of the drive unit body holding portion 17. The drive unit 110 is positioned on the planar side of the detection unit 90 when the detection unit 90 is housed in the recess 15.

[0081] With both the detection unit 90 and the drive unit 110 housed within the case 10, the detection unit 90 is held in place by the bottom surface 16 of the case 10 in the recess 15 and the drive unit body 112. This eliminates the need for a structure to restrict the movement of the detection unit 90 in the thickness direction, thereby reducing the number of parts. Furthermore, it prevents the advance / return movement device 1 from becoming too large in the thickness direction, allowing for a more compact design.

[0082] Furthermore, the detection unit 90 and the drive unit 110 are arranged in a stacked manner in the thickness direction. Specifically, in the thickness direction, the drive unit 110 is positioned in the first layer F from the bottom-side surface of the cover 38 to the bottom surface 18 of the drive unit body holding part 17. Then, a recess 15 as the second layer S is formed on the bottom-side of the first layer F, and the detection unit 90 is positioned in this recess 15.

[0083] The detection unit 90 and the drive unit 110 are positioned within the case 10, generally towards the retraction direction from the center in the forward-retraction direction. The transmission unit 120 and the locking unit 130 are positioned within the case 10, generally towards the forward direction from the center in the forward-retraction direction. Therefore, by making the thickness of the first layer F and the second layer S the same as or smaller than the thickness of the transmission unit 120 and the locking unit 130, it is possible to suppress an increase in the thickness of the forward-retraction device 1. In this embodiment, the detection unit 90 and the drive unit body 112 are housed within the thickness range of the first layer F and the second layer S, stacked in the thickness direction. Therefore, the thickness of the forward-retraction device 1 with the detection unit 90 housed within the case 10 does not need to be larger than that of a forward-retraction device without the detection unit 90 housed within the case 10, and can be the same size.

[0084] [5. Operation of the forward / backward movement device 1] The operation of the reciprocating device 1 according to this embodiment will be described below. The operation of the reciprocating mechanism 40 will be described with reference to Figures 10 and 11, and the operation of the regulating mechanism 100 will be described with reference to Figures 11(A), 12(A), and 12(B).

[0085] (Operation of the reciprocating mechanism 40) Figure 10 is an example of a plan view showing the internal state of the reciprocating device 1 with the cover 38 (see, for example, Figure 4) removed, and (A) shows the lid open state, and (B) shows the first stroke state.

[0086] In the lid-open state shown in Figure 10(A), the end 82 of the guide pin 80 is in contact with the guide portion 64 at the first position 64A. In the lid-open state, no force is acting on the retracting member 41 in the retracting direction, and the retracting member 41 is biased in the forward direction by the biasing member 50. In the lid-open state, the locking of the lid locking portion 44 and the lid locking portion 240 (see Figure 3) are released. In the lid-open state, the operating portion 76 activates the switch 92, thereby allowing the detection portion 90 to detect that the lid is in the open state.

[0087] When an external force is applied to the retracting member 41 in the retracting direction, the retracting member 41 moves in the retracting direction while the projection, which is the engaging portion 13 (see, for example, Figure 6), slides within the helical engaged portion 48 (see, for example, Figure 4). As a result, the retracting member 41 moves in the retracting direction while rotating around the axis of the rod portion 42 relative to the case 10. When the retracting member 41 moves in the retracting direction, the operation of the switch 92 by the operating portion 76 is released, and the orientation of the lid locking portion 44 changes, thereby locking the lid locking portion 44 with the lid locked portion 240 (see Figure 3). In this embodiment, when the fuel lid 220 (see Figure 3(A)) is moved from the open position to the closed position, an external force is applied to the retracting member 41 in the retracting direction. When the retracting member 41 moves from the lid open state to the furthest retracted position, it enters the first stroke state shown in Figure 10(B). In the first stroke state, the end 82 of the guide pin 80 contacts the guide portion 64 at the second position 64B, restricting the reciprocating member 41 from moving further in the retraction direction.

[0088] Figure 11 is an example of a plan view showing the internal state of the reciprocating device 1 with the cover 38 (see, for example, Figure 4) removed, and (A) shows the reciprocating member 41 in the retracted position, and (B) shows the second stroke state.

[0089] In Figure 11(A), the end 82 of the guide pin 80 abuts against the guide portion 64 at the third position 64C, restricting the reciprocating member 41 from moving further in the forward direction. When the reciprocating member 41 is in the retracted position, as described above, the movement of the reciprocating member 41 in the retracted direction can be restricted by the movement of the locking portion 130 in the left-right direction, but details of this will be described later. Note that in the diagram shown in Figure 11(A), the movement of the reciprocating member 41 in the retracted direction is not restricted, and the lid is in the closed and unlocked state.

[0090] In the lid-closed / unlocked state shown in Figure 11(A), if an additional external force is applied to the retractable member 41 in the retraction direction, the second stroke state shown in Figure 11(B) is reached. In the second stroke state, the end 82 of the guide pin 80 contacts the guide portion 64 at the fourth position 64D, restricting the retractable member 41 from moving further in the retraction direction.

[0091] (Operation of regulatory body 100) In Figure 11(A), when the drive unit body 112, which acts as a drive source, rotates, the drive shaft 114 rotates. When the drive shaft 114 rotates, the rotary gear 122 rotates around the axis of the transmission unit support shaft 21. As the rotary gear 122 rotates around the axis of the transmission unit support shaft 21, the oscillating part 124 swings from side to side. When the oscillating part 124 swings from side to side, the engaged part 132, which engages with the oscillating part 124, moves from side to side, that is, the locking part 130 moves from side to side.

[0092] The locking part 130 can move in the left-right direction when the lid is closed and the retractable member 41 is in the retracted position. When the locking part 130 moves from left to right in the lid-closed unlocked state, the lid is locked, and the movement of the retractable member 41 in the retracted direction is restricted.

[0093] Figure 12 is an example of a diagram illustrating the restriction of the retraction movement of the retraction member 41 in the retraction direction, where (A) is a plan view showing the internal state of the retraction movement device 1 when the lid is closed and locked, and (B) is a cross-sectional view of line CC shown in Figure (A). Note that in Figure 12(B), the locking part 130 is a cross-section and therefore would normally require hatching, but for the sake of explanation, the hatching has been omitted. In Figure 12(B), the locking part 130 shown by the thick solid line indicates the state in which the movement of the retraction control member 60 in the retraction direction is restricted (i.e., the lid is closed and locked). Also in Figure 12(B), the locking part 130 shown by the thin dashed line indicates the state in which the restriction of the movement of the retraction control member 60 in the retraction direction is released (i.e., the lid is closed and unlocked).

[0094] In the lid-closed and unlocked state shown in Figure 11(A), the locking portion 130 is positioned such that the restriction release portion 138 of the locking portion 130 (see, for example, Figure 5) and the recess 68 of the reciprocating control member 60 (see, for example, Figure 5) face each other. As a result, the reciprocating control member 60 and, consequently, the reciprocating member 41 can move in the retraction direction.

[0095] In the lid closed and unlocked state, when the transmission unit 120 rotates counterclockwise in a plan view due to the driving force from the drive unit 110, the swinging unit 124 swings to the right, causing the locking unit 130 to move to the right, resulting in the lid closed and locked state shown in Figures 12(A) and (B).

[0096] In the lid-closed locked state, the first restricting portion 134 of the locking portion 130 and the recess 68 face each other. At this time, the second restricting portion 136 of the locking portion 130 and the retraction-direction side surface 75 (see, for example, Figure 5) at the right end of the fitting portion forming surface 70 (see, for example, Figure 5) face each other. As a result, the movement of the retraction control member 60 and, consequently the retraction member 41 in the retraction direction is restricted, and the end 82 of the guide pin 80 cannot move from the third position 64C, thus preventing the second stroke state from occurring. Therefore, in the lid-closed locked state, the lid remains closed unless the restriction is released by the locking portion 130.

[0097] When the locking mechanism 130 moves from the right to the left while the lid is in the closed-locked state, the lid enters the closed-unlocked state (see the dashed lines shown in Figures 11(A) and 12(B)), and the restriction on the movement of the retracting member 41 in the retracted direction is released. In this way, when the retracting member 41 is in the retracted position, the retracting movement device 1 can be switched between the closed-locked state and the closed-unlocked state.

[0098] When the lid is closed and unlocked, the second stroke state is entered when the reciprocating member 41 is pressed in the retraction direction. In the second stroke state, the restriction on the reciprocating control member 60 in the forward direction is released, and the reciprocating control member 60, i.e., the reciprocating mechanism 40, moves in the forward direction due to the biasing force of the biasing member 50.

[0099] As described above, the actuation part 76 is provided on the reciprocating control member 60 at a position on the retraction side of the recess 68 that engages with the restriction release part 138 provided on the locking part 130. More specifically, the actuation part 76 is provided on the reciprocating control member 60 such that when the reciprocating member 41 is in the forward position, it is positioned on the retraction side of the locking part 130. This prevents interference between the actuation part 76 and the locking part 130 when the reciprocating member 41 is moved in the retraction direction. Therefore, the movement of the reciprocating member 41 in the retraction direction is prevented from being hindered by the locking part 130, and the amount of movement from the lid open state to the first stroke state and the amount of movement from the lid closed unlock state to the second stroke state can be secured.

[0100] In this embodiment, even without driving force from the drive unit 110, the locking unit 130 can be moved left and right by manually rotating the locking unit operating operation unit 140. When the locking unit operating operation unit 140 is manually rotated, the locking unit operating member 142 rotates, and the rotating gear 122 rotates accordingly. When the rotating gear 122 rotates, the oscillating unit 124 moves left and right, allowing the locking unit 130 to be moved left and right.

[0101] [6. Effects and Functions of the Movement Device 1] The reciprocating device 1 of this embodiment includes a reciprocating member 41 that can move back and forth in the reciprocating direction relative to the case 10, a detection unit 90 that can detect the position of the reciprocating member 41, i.e., the lid being in the open state, and a restricting mechanism 100 that can restrict the reciprocating movement of the reciprocating member 41 in the reciprocating direction relative to the case 10. The restricting mechanism 100 includes a drive unit 110 having a drive unit body 112 and a drive shaft 114, a locking unit 130 having a first restricting unit 134 that functions as an engaging unit that engages with a recess 68 of the reciprocating control member 60, and a transmission unit 120 that transmits the rotational force of the drive shaft 114 to the locking unit 130 and moves the locking unit 130 so that the movement of the reciprocating member 41 in the reciprocating direction is restricted. In such a reciprocating device 1, when the drive unit 110 and the detection unit 90 are housed in the case 10, a clamping structure is configured in which the detection unit 90 is clamped between the bottom surface 16 of the case 10 and the drive unit body 112 in the recess 15 where the detection unit 90 is housed.

[0102] Thus, by using a clamping structure in which the detection unit 90 is held between the bottom surface 16 of the case 10 in the recess 15 where the detection unit 90 is housed and the drive unit 110, a component to restrict the movement of the detection unit 90 in a direction perpendicular to the bottom surface of the case 10 (hereinafter referred to as the "thickness direction") becomes unnecessary. As a result, the number of parts can be reduced, the size of the reciprocating movement device 1 in the thickness direction can be suppressed, and the reciprocating movement device 1 can be made compact.

[0103] Furthermore, the reciprocating device 1 is housed such that the detection unit 90 and the drive unit body 112 are stacked in the thickness direction within the size range of the first layer F and the second layer S in the thickness direction. The size of the first layer F and the second layer S in the thickness direction is the same as or smaller than the size of the transmission unit 120 and the locking unit 130 in the thickness direction. Therefore, the size of the reciprocating device 1 in the thickness direction does not need to be larger than that of a reciprocating device in which the detection unit 90 is not housed in the case 10, and it can be made to be approximately the same size as a reciprocating device in which the detection unit 90 is not housed in the case 10.

[0104] Thus, by arranging the detection unit 90 in the second layer where the locking unit 130 is located, it is possible to suppress the increase in size of the reciprocating device 1 in the direction perpendicular to the bottom surface of the case 10 compared to a reciprocating device that does not have the detection unit 90 inside the case 10. Therefore, even if the detection unit 90 is housed inside the case 10, it is possible to provide a reciprocating device 1 that has approximately the same size in the thickness direction as a conventional reciprocating device that does not have the detection unit 90 inside the case 10.

[0105] Furthermore, the engaging portion 13 provided on the case 10 engages with the engaged portion 48 which is spirally provided on the rod portion 42 of the reciprocating member 41. Therefore, when the reciprocating member 41 moves in the reciprocating direction, it moves while rotating relative to the case 10. The reciprocating movement device 1 further includes a reciprocating control member 60 which moves back and forth together with the reciprocating member 41 when the reciprocating member 41 moves in the reciprocating direction. This reciprocating control member 60 has an operating portion 76 that activates a switch 92 of the detection unit 90. The case 10 has a reciprocating control member guide portion 14 that guides the reciprocating movement of the reciprocating control member 60 in the reciprocating direction while restricting the relative rotation of the reciprocating control member 60 with respect to the case 10.

[0106] Thus, while the reciprocating member 41 moves back and forth while rotating relative to the case 10, the reciprocating control member 60 moves in the reciprocating direction while its rotation relative to the case 10 is restricted. Therefore, the operating part 76 provided on the reciprocating control member 60 also moves back and forth while its rotation relative to the case 10 is restricted, allowing the detection unit 90 to operate stably.

[0107] Furthermore, the reciprocating member 41 is configured to move forward and backward while rotating relative to the case 10, and the reciprocating movement device 1 further includes a reciprocating control member 60 that moves forward and backward together with the reciprocating member 41 in the reciprocating direction. The reciprocating control member 60 has a recess 68 that functions as a restricted part that restricts the movement of the reciprocating member 41 in the retraction direction by engaging with a restriction release part 138 provided on the locking part 130. In addition, an operating part 76 that activates a switch 92 of the detection part 90 is provided in the retraction direction from the recess 68.

[0108] In this way, by positioning the actuation unit 76, which activates the switch 92 of the detection unit 90, on the side in the retraction direction of the recess 68 that engages with the restriction release unit 138 provided on the locking unit 130, interference between the actuation unit 76 and the locking unit 130 can be prevented when moving the retraction member 41 in the retraction direction. Therefore, the movement of the retraction member 41 in the retraction direction can be prevented from being obstructed, and the stroke of the retraction member 41 in the retraction direction can be ensured.

[0109] It should be noted that the present invention is not limited to the above embodiments and can be modified in various ways. For example, in this embodiment, a configuration is shown in which the reciprocating member 41 moves in a straight line in the reciprocating direction, but a configuration in which the reciprocating member 41 performs circular motion and engages with the reciprocating control member 60 may also be adopted.

[0110] Furthermore, in this embodiment, the guide portion forming surface 62 of the reciprocating control member 60 is a surface parallel to the bottom surface of the case 10, but it is not limited to being a surface parallel to the bottom surface of the case 10 as long as the movement of the reciprocating control member 60 in the reciprocating direction can be controlled. For example, even if the guide portion forming surface 62 is a surface perpendicular to the bottom surface of the case 10, the movement of the reciprocating control member 60 in the reciprocating direction can be controlled by changing the arrangement positions of the guide pin 80 and the pressing member 84.

[0111] Furthermore, in this embodiment, the reciprocating control member 60 is guided in the reciprocating direction by a reciprocating control member guide portion 14 formed as a groove when it moves in the reciprocating direction. Specifically, the reciprocating control member 60 has a plate-shaped guided portion 66, and the end of this guided portion 66 is slidably fitted into the reciprocating control member guide portion 14 formed as a groove, thereby guiding the reciprocating control member 60 in the reciprocating direction. However, the configuration for guiding the reciprocating control member 60 in the reciprocating direction is not limited to this configuration. For example, a protruding portion may be formed that protrudes in a plate shape from the bottom surface of the case 10 toward the planar side, and a groove may be formed in the reciprocating control member 60 along the reciprocating direction, and the protruding portion may be slidably fitted into the groove formed in the reciprocating control member 60. In other words, it is sufficient that the movement of the reciprocating control member 60 in the reciprocating direction is guided, and the configuration is not limited to a specific one.

[0112] Furthermore, in this embodiment, the detection unit 90, which can detect that the lid is in the open state, is sandwiched between the bottom surface 16 of the case 10 and the drive unit body 112. However, the type of detection unit 90 that is sandwiched is not limited to a detection unit 90 that can detect that the lid is in the open state. The detection unit sandwiched between the bottom surface 16 of the case 10 and the drive unit body 112 does not need to be a detection unit limited to a specific application, as long as it can be sandwiched between the bottom surface 16 and the drive unit body 112.

[0113] Furthermore, in this embodiment, the movement of the reciprocating member 41 in the reciprocating direction is restricted or released via the reciprocating control member 60, but the reciprocating control member 60 is not an essential component. For example, in the forward direction, a groove corresponding to the guide portion 64 may be provided on the reciprocating member 41, and the end portion 82 of a guide pin 80 may be brought into contact with this groove to restrict or release the movement of the reciprocating member 41 in the forward direction. Similarly, in the backward direction, a recess corresponding to the recess 68 of the reciprocating control member 60 may be provided on the reciprocating member 41, and the movement of the reciprocating member 41 in the backward direction may be restricted or released by moving the lock portion 130 relative to this recess. Moreover, if the reciprocating control member 60 is not provided, instead of a configuration in which the reciprocating control member 60 is guided in the reciprocating direction, a configuration in which the reciprocating member 41 is guided in the reciprocating direction may be used.

[0114] Furthermore, the terms "vertical," "orthogonal," and "parallel" as used in this specification only need to mean "substantially vertical," "substantially orthogonal," and "substantially parallel," respectively, and are intended to be flexible within a range that does not affect the performance of the reciprocating movement device 1. [Industrial applicability]

[0115] In this embodiment, a fuel lid opening / closing device was used as an example of an opening / closing device to which the reciprocating device 1 is employed. However, the reciprocating device 1 of the present invention is not limited to a fuel lid opening / closing device, and can be applied to various opening / closing devices, such as a charging lid opening / closing device. Furthermore, the reciprocating device 1 may be mounted on various devices, not just opening / closing devices. [Explanation of Symbols]

[0116] 10 cases 14. Guide section for the retraction control member 40 Moving and retracting member 60 Retraction control member 68 recess 76 Operating part 90 Detection unit 100 Regulatory Organizations 110 Drive unit 120 Transmission section 130 Locking part F Virtual Layer 1 S Virtual second layer

Claims

1. The case and, A reciprocating member that can move back and forth relative to the case, A detection unit capable of detecting the position of the retractable member, A restricting mechanism capable of restricting the forward and backward movement of the forward and backward member relative to the case, A reciprocating movement device equipped with, The aforementioned iPhone mechanism, A drive unit having a drive unit body and a drive shaft, A locking mechanism that restricts the movement of the forward and backward member in the forward and backward direction, The system includes a transmission unit that transmits the rotational force of the drive shaft to the locking unit and moves the locking unit so as to restrict the movement of the reciprocating member in the reciprocating direction, In a state where the drive unit and the detection unit are housed in the case, a clamping structure is configured such that the detection unit is clamped between the bottom surface of the case and the drive unit body. Advance / retreat movement device.

2. The case has a virtual first layer and a virtual second layer located closer to the bottom surface of the case than the first layer, in a direction perpendicular to the bottom surface of the case. The drive unit is located in the first layer, and the locking unit and the detection unit are located in the second layer. The forward and backward movement device according to claim 1.

3. The reciprocating member is capable of moving forward and backward while rotating relative to the case. The aforementioned reciprocating device further comprises a reciprocating control member that moves back and forth together with the reciprocating member, The forward / backward control member has an operating part that activates the detection unit, The aforementioned case is, The system has a guide portion that guides the forward and backward movement of case, The reciprocating device according to claim 1 or 2.

4. The reciprocating member is capable of moving forward and backward while rotating relative to the case. The aforementioned reciprocating device further comprises a reciprocating control member that moves back and forth together with the reciprocating member, The aforementioned reciprocating control member is The locking portion has an engaging portion that engages with the engaged portion, It has an operating part provided on the retraction side of the retracting member relative to the engaged portion, which activates the detection portion, The reciprocating device according to claim 1 or 2.

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