WO2021045066A1 - Boosting device for opening/closing body - Google Patents

Abstract

Provided is a boosting device for an opening/closing body by which it is possible to suppress erroneous detection of a closed state for the opening/closing body. This boosting device 10 for an opening/closing body comprises: a body member 11 having a cylindrical section 15; a moving member 40; a spring member 57; a protrusion 55; a cam groove 60; and a rotation abutting section 43. The cam groove 60 has a protrusion side stopping section 61, a withdrawing side stopping section 63, and a pressing stopper 65. An opening/closing body 100 is provided with a cam mechanism which rotationally biases the moving member 40 in such a manner that when the opening/closing body 100 is pressed, the cam mechanism presses the rotation abutting section 43 to rotationally bias the moving member 40 and guides the moving member to the withdrawing side stopping section 63 such that the protrusion 55 does not abut the pressing stopper 65.

Description

Opening and closing body pushing device

The present invention relates to an opening / closing body pushing device for pushing up an opening / closing body such as an automobile fuel lid from an opening by a predetermined height, for example.

For example, in an opening / closing body such as a fuel lid of an automobile, a moving member (rod) for receiving and supporting the opening / closing body with the opening / closing body closed with respect to the opening and pushing up the opening / closing body by a predetermined height from the opening. Is placed. This moving member often has a structure that expands and contracts by pushing the opening / closing body.

As an apparatus having such a structure, Patent Document 1 below urges a main body member having a tubular portion, a moving member that is axially slidable and rotatably held with respect to the tubular portion, and a moving member. Described is a rotary telescopic device having a spring member, a protrusion formed on the outer periphery of the moving member, and a cam groove formed on the inner circumference of the tubular portion into which the protrusion is fitted. A gate-shaped engaging portion is provided on the back side of the opening / closing body, and an engaging piece that engages and disengages with the engaging portion is provided at the tip of the moving member. Then, when the opening / closing body is closed with respect to the opening, the engaging piece at the tip of the moving member is pressed by the back side of the opening / closing body, the moving member contracts while rotating, and engages with the engaging portion on the back side of the opening / closing body. The pieces engage and lock the closure in a closed state.

International release WO2018 / 038034A1

By the way, in the rotary telescopic device of Patent Document 1, a sensor for detecting whether the opening / closing body is closed or open may be arranged. That is, on the premise that the moving member is pushed and contracted by the opening / closing body, it is detected that the opening / closing body is open when the moving member is extended and protruded, and when the moving member is pushed and contracted, the opening / closing body is opened. Detects that is closed.

However, there were cases where only the moving member was pushed without being pushed by the opening / closing body. In that case, it may be erroneously detected that the opening / closing body is in the closed state.

Therefore, an object of the present invention is to provide a push-up device for an opening / closing body that can suppress false detection of the opening / closing body in a closed state.

In order to achieve the above object, the present invention is a push-up device for an opening / closing body for pushing up an opening / closing body that can be opened / closed in the opening by a predetermined height with respect to the opening, and is a tubular portion. A main body member having the above, a moving member arranged in the tubular portion and held rotatably and axially movable with respect to the tubular portion, and the moving member protruding from one end of the tubular portion. It has a spring member urging in the direction of squeezing, one of the moving member or the tubular portion is provided with a protrusion, and the other of the moving member or the tubular member is fitted with the protrusion. A cam groove is provided, and a rotary contact portion is provided on the tip end side of the moving member so that the protrusion rotates as the cam groove moves. With the moving member protruding from one end of the tubular portion by a predetermined length, the protruding side stop portion holding the protrusion and the moving member retracted from one end of the tubular portion by a predetermined length. The push-in stopper portion has a pull-in side stop portion for holding the protrusion portion and a push-in stopper portion provided at a position axially opposed to the protrusion-side stop portion, and the push-in stopper portion is hit by the protrusion portion. It is configured to restrict the pushing of the moving member when it comes into contact with the opening / closing body, and when the moving member is pushed into the opening, the moving member is rotated by a predetermined angle via the rotary contact portion. When the opening / closing body is pushed in with the protruding portion located at the protruding side stop portion, the cam mechanism presses the rotary contact portion and the moving member is provided. Is rotationally urged to move the protrusion along the cam groove so that the protrusion does not come into contact with the push stopper, and guide the protrusion to the pull-in side stop portion.

According to the present invention, when the opening / closing body is pushed in a state where the protrusion is located at the protruding side stop portion and the moving member protrudes from one end of the tubular portion by a predetermined length, the cam mechanism moves to the opening / closing body contact portion. To rotate and urge the moving member to move the protrusion along the cam groove so that the protrusion does not come into contact with the push stopper, and guide the moving member to the pull-in side stop. On the other hand, the opening / closing body can be closed. On the other hand, when the protruding portion is located at the protruding side stop portion and the moving member protrudes from one end of the tubular portion by a predetermined length and only the moving member is pushed in without pushing the opening / closing body, the moving member rotates. Since it is pushed in without being pushed and the protruding portion comes into contact with the pushing stopper portion, the pushing of the moving member can be restricted. As a result, it is possible to prevent the opening / closing body from being detected as being closed even though the opening / closing body is not actually closed.

It is a perspective view which shows one Embodiment of the push-up device of the opening and closing body which concerns on this invention. It is an exploded perspective view of the push-up device. It is a perspective view of the push-up device. It is sectional drawing of the push-up device. The cam mechanism and the engaging portion constituting the push-up device are shown, (a) is a perspective view, (b) is a plan view, and (c) is a side view. The operating state of the moving member with respect to the tubular portion in the pushing device is shown, (a) is an enlarged perspective view of a main part in a state where the moving member protrudes from one end of the tubular portion, and (b) is an enlarged perspective view of the tubular portion. An enlarged perspective view of the main part in a state where the moving member is pulled in from one end, (c) is a state in which the moving member protrudes from one end of the tubular part, and the main part when viewed from a direction different from (a). It is an enlarged perspective view. In the same pushing device, a case where only the moving member is pushed without passing through the opening / closing body is shown, (a) is a front explanatory view before pushing the moving member, and (b) is a state where the moving member is pushed. It is a front explanatory view of. In the pushing device, the first step in the case of pushing the moving member through the opening / closing body is shown, (a) is a side explanatory view, (b) is a front explanatory view, and (c) is a plan explanatory view. is there. In the pushing device, the second step in the case of pushing the moving member through the opening / closing body is shown, (a) is a side explanatory view, (b) is a front explanatory view, and (c) is a plan explanatory view. is there. In the same pushing device, the third step in the case of pushing a moving member through an opening / closing body is shown, (a) is a side explanatory view, (b) is a front explanatory view, and (c) is a plan explanatory view. is there. In the pushing device, the fourth step in the case of pushing the moving member through the opening / closing body is shown, (a) is a side explanatory view, (b) is a front explanatory view, and (c) is a plan explanatory view. is there. In the pushing device, the fifth step in the case of pushing the moving member through the opening / closing body is shown, (a) is a side explanatory view, (b) is a front explanatory view, and (c) is a plan explanatory view. is there. Another embodiment of the opening / closing body pushing device according to the present invention is shown, and is an enlarged perspective view of a main part before pushing the moving member. It is the enlarged perspective view of the main part in the state which pushed the moving member in the pushing device. Yet another embodiment of the opening / closing body pushing device according to the present invention is shown, (a) is a front explanatory view before pushing the moving member, and (b) is a moving member without going through the opening / closing body. It is a front explanatory view when only pushed in. It is an exploded perspective view which shows still another embodiment of the push-up device of the opening and closing body which concerns on this invention. It is an exploded perspective view of the same push-up device when viewed from a direction different from that of FIG. It is a perspective view of the case which comprises the push-up device. It is explanatory drawing which shows the operation state of the cam mechanism and the rotary contact part in the push-up device, and shows the 1st state. It is explanatory drawing which shows the operation state of the cam mechanism and the rotary contact part in the push-up device, and shows the 2nd state. It is explanatory drawing which shows the operation state of the cam mechanism and the rotary contact part in the push-up device, and shows the 3rd state.

Hereinafter, an embodiment of the opening / closing body pushing device according to the present invention will be described with reference to FIGS. 1 to 12.

As shown in FIG. 1, for example, this opening / closing device pushing device is used for an opening / closing structure of an opening / closing body such as a fuel lid. As shown in FIG. 1, a fixing member 1 having a substantially cylindrical box shape is fixed to the periphery of the fuel filler port of the vehicle body 1a. Further, an opening / closing body (fuel lid) 100 is attached to the opening 3 of the fixing member 1 so as to be openable / closable via a hinge portion 5. Further, a recess 3a is provided in the opening 3 of the fixing member 1 on the side opposite to the hinge portion 5 in the circumferential direction, and the recess 3a is filled with the push-up device 10 (hereinafter referred to as the opening / closing device 10) of the opening / closing body of this embodiment. "Pushing device 10") is arranged.

The push-up device 10 of this embodiment is used for the opening / closing structure of an opening / closing body such as a fuel lid as described above. It may be used for daily necessities, etc., and the mode of use, installation location, etc. are not particularly limited.

Then, as shown in FIG. 2, the pushing device 10 of this embodiment includes a first main body portion 20 and a second main body portion 30, and has a tubular portion 15 having a circular inner circumference (see FIG. 6). A main body member 11 having the above, and a moving member 40 having a circular outer circumference and being arranged in the tubular portion 15 and held rotatably and axially movable with respect to the tubular portion 15. A spring member 57 that urges the moving member 40 in a direction protruding from one end 15a (the tip in the axial direction) of the tubular portion 15, a protrusion 55 formed on the outer periphery of the moving member 40, and a tubular portion 15 are formed. A cam groove 60 (see FIG. 6) into which the protrusion 55 is fitted to rotate the moving member 40 and move the moving member 40 in the axial direction, and a cam groove 60 provided on the tip side of the moving member 40 in the axial direction. It has a rotary contact portion 43 that rotates (rotates to change the angle) as the groove 60 moves.

Further, as shown in FIG. 6, the cam groove 60 has a protruding portion in a state where the moving member 40 is projected from one end 15a of the tubular portion 15 by a predetermined length (see FIGS. 6A and 6C). A retractable stop portion 61 that holds the protrusion 55 and a retractable stop portion that holds the protrusion 55 with the moving member 40 retracted from one end 15a of the tubular portion 15 by a predetermined length (see FIG. 6B). It has 63 and. The detailed structure of the cam groove 60 will be described later.

Further, as shown in FIGS. 3 to 5, a cam mechanism for rotating the moving member 40 by a predetermined angle is provided on the inner surface side of the opening / closing body 100 via the rotation contact portion 43 when the opening / closing body 100 is pushed. There is. With reference to FIG. 5, a pair of engaging portions 110 and 110 having a substantially L-shape and a pair of cam protrusions 120 and 120 having a protrusion shape are provided from the inner surface of the opening / closing body 100, respectively. ing. The pair of cam protrusions 120, 120 form the above-mentioned "cam mechanism".

As shown in FIG. 5, each engaging portion 110 in this embodiment is bent so as to be orthogonal to a standing wall 111 erected at a predetermined height from the inner surface of the opening / closing body 100 and the tip side of the standing wall 111 in the erection direction. It is composed of an engaging wall 113 extending in the direction of the above. Further, as shown in FIGS. 3 and 5, the pair of engaging portions 110 and 110 allow the tips of the engaging walls 113 and 113 to face each other and allow the rotary contact portion 43 to pass through. They are arranged with a gap.

As shown in FIG. 5B, the cam protrusions 120 and 120 are arranged between the tips of the engaging walls 113 and 113 of the pair of engaging portions 110 and 110. Further, as shown in FIG. 5C, the side surfaces of the cam protrusions 120 close to the standing wall 111 of the engaging portion 110 when viewed from the side form substantially right angles to the surface direction of the opening / closing body 100. , It has a nearly right-angled triangular shape.

Further, each cam protrusion 120 is gradually lowered in height from the top portion 121, which protrudes highest from the inner surface of the opening / closing body 100, toward the other engaging portion 110 side among the side surfaces of one engaging portion 110 side. It has a first slope 123 that is inclined so as to be. The cam protrusion 120 pushes the opening / closing body 100 in a state where the protrusion 55 is located at the protruding side stop portion 61 of the cam groove 60 (see FIGS. 6A, 6C and 8B). Occasionally, as shown in FIG. 9C, the rotary contact portion 43 is rotated.

Further, as shown in FIG. 5B, the pair of cam protrusions 120, 120 have the first slopes 123, 123 with respect to the center C of their placement locations (hereinafter, referred to as “cam protrusion placement center C”). Are arranged so as to face each other diagonally.

Further, as shown in FIGS. 5A and 5B, the inner surface side of each cam protrusion 120 (the surface facing the cam protrusion placement center C) gradually increases in height from the top 121 toward the cam protrusion placement center C. A second slope 125 is provided, which is inclined so as to be low. The second slope 125 is formed when the opening / closing body 100 is pushed in while the protrusion 55 is located at the retractable stop portion 63 of the cam groove 60 (see FIGS. 6B and 11A). As shown in FIG. 12 (c), the rotation contact portion 43 is allowed to rotate. That is, the cam protrusion 120 opens and closes with the protrusion 55 positioned at the pull-in side stop portion 63 of the cam groove 60 so as not to hinder the rotation of the rotary contact portion 43 when the moving member 40 is pushed. When the body 100 is pushed in, the protrusion 55 held by the pull-in side stop 63 is pulled out from the pull-in stop 63, and is provided in the stop protrusion 66a as shown in FIG. 12 (a). In cooperation with the guide surface 66b, the protrusion 55 is guided and passed between the retractable stop portion 63 and the stop protrusion 66a to move to the second guide groove 67 side. ..

The shape of the cam protrusion forming the cam mechanism and the engaging portion is not limited to the above shape. That is, the cam mechanism may have a structure capable of rotating the moving member by a predetermined angle via the rotary contact portion when the opening / closing body is pushed in, and the engaging portion may be the rotary contact portion. Any structure may be used as long as it can be engaged and removed.

Next, the structure of the main body member 11 will be described.

The main body member 11 is composed of a first main body portion 20 and a second main body portion 30 which are assembled with each other so as to divide a tubular portion 15 having a circular inner circumference in the axial direction. .. As shown in FIG. 6, the tubular portion 15 includes a first tubular portion 23 and a second tubular portion 33 formed by dividing the tubular portion 15 in the axial direction, and the first tubular portion 23 is a first main body portion. It is provided on the 20 side, and the second cylinder portion 33 is provided on the second main body portion 30 side.

As shown in FIG. 2, the first main body portion 20 has a substantially long box-shaped base portion 21 extending in one direction, and is substantially cylindrical on one end side in the longitudinal direction of the base portion 31. A cylindrical cover 22 is provided. The first tubular portion 23 is integrally formed inside the tubular cover 22. As shown in FIG. 4, the second tubular portion 33 of the second main body portion 30 is inserted into the tubular cover 22. In FIGS. 6 to 12, the tubular cover 22 is omitted from the first main body 20 for convenience in order to explain the structure in an easy-to-understand manner. Further, a plurality of locking protrusions 25 are provided so as to project from the outer peripheral edge of the base portion 21 on the contact surface side with the second main body portion 30 (see FIG. 2).

As shown in FIGS. 2 and 3, a cap 77 made of rubber, an elastic elastomer, or the like is provided on one end side of the tubular cover 22 (the side opposite to the contact surface with the second main body 30). It is designed to be installed.

On the other hand, as shown in FIG. 2, the second main body portion 30 has a base portion 31 having a substantially elongated plate shape extending in one direction corresponding to the first main body portion 20. On one end side of the base portion 31 in the longitudinal direction, a bottomed cylindrical second tubular portion 33 forming the tubular portion 15 is provided together with the first tubular portion 23.

Further, the outer diameter of the second tubular portion 33 is the same as the outer diameter of the first tubular portion 23, and has a size that can be inserted into the tubular cover 22 of the first main body portion 20. Therefore, as shown in FIG. 4, the second tubular portion 33 is inserted into the tubular cover 22 in a state where the first main body portion 20 and the second main body portion 30 are assembled to form the main body member 11. Therefore, a cam groove 60 is formed on the end faces of the first cylinder portion 23 and the second cylinder portion 33 that face each other in the axial direction.

As described above, the cam groove 60 in this embodiment has a protruding side stop portion 61 and a pull-in side stop portion 63, and as shown in FIG. 7, it faces the protruding side stop portion 61 in the axial direction. It has a push-in stopper portion 65 provided at a position. The push-in stopper portion 65 regulates the push-in of the moving member 40 when the protrusion 55 comes into contact with the push-stopper portion 65.

As shown in FIGS. 6 (b) and 7 (a), the push-in stopper portion 65 in this embodiment is a concave groove-shaped concave portion that opens toward the protruding side stop portion 61. As shown in 7 (b), the protrusion 55 is fitted into the push-in stopper portion 65 which is the recess. Further, the end surface 64 (the tip end surface of the second tubular portion 33) of the cam groove 60 on which the push-in stopper portion 65 is formed has a flat surface shape orthogonal to the axial direction of the tubular portion 15 (FIG. 7). The shape of the push-in stopper portion is not limited to the concave portion, and may be, for example, an inclined surface (this will be described in another embodiment).

Further, as shown in FIGS. 6 and 7, the protruding side stop portion 61 and the retractable side stop portion 63 in this embodiment are recesses that open toward the axial base end side of the tubular portion 15. When the protrusion 55 is positioned, the protrusion 55 is fitted, and the movement of the protrusion 55 on the tip side in the axial direction is restricted, and the movement in the circumferential direction is restricted. In this embodiment, the protruding side stop portion 61 is formed at a position close to one end 15a of the tubular portion 15, while the retractable side stop portion 63 is the protruding side stop portion in the tubular portion 15. It is formed at a position away from one end 15a of the tubular portion 15 than the position where 61 is provided.

Further, as shown in FIG. 6C, the moving member 40 was pressed against the urging force of the spring member 57 in the cam groove 60 with the protrusion 55 located at the protruding side stop portion 61. Occasionally, the first guide groove 66, which guides the protrusion 55 from the protruding side stop portion 61 to the pull-in side stop portion 63, is formed so as to be inclined in one direction on the inner circumference of the tubular portion 15. As shown in FIG. 6C, a stop protrusion 66a having a substantially triangular protrusion is formed at the end of the first guide groove 66. Further, a tapered guide surface 66b is formed on the surface of the stop protrusion 66a facing the retractable stop portion 63. The guide surface 66b has a second guide groove 67 for the protrusion 55 that has come off from the pull-in side stop 63 when the moving member 40 is pushed in while the protrusion 55 is held by the pull-in side stop 63. Guide to the side.

Further, as shown in FIGS. 6A and 6B, in the cam groove 60, the moving member 40 resists the urging force of the spring member 57 while the protrusion 55 is located at the retracting side stop portion 63. The second guide groove 67, which removes the protrusion 55 from the retractable stop 63 and guides it to the protruding stop 61 when pressed, is formed so as to be inclined in one direction on the inner circumference of the tubular portion 15. ing.

Then, the cam groove 60 of this embodiment goes around the protruding side stop portion 61, the first guide groove 66, the retractable side stop portion 63, and the second guide groove 67 in this order along the inner circumference of the tubular portion 15. It is arranged like this.

Further, as shown in FIG. 2, a plurality of frame-shaped locking frame portions 35 are provided on the outer peripheral edge portion of the base portion 31. The first main body 20 and the second main body 30 are assembled by locking the plurality of locking protrusions 25 of the first main body 20 to these plurality of locking frame parts 35, respectively. The main body member 11 is configured (see FIG. 3).

Further, as shown in FIGS. 2 and 4, a columnar spring support pillar 34 is projected from the center of the inner surface of the bottom of the second cylinder portion 33. The spring support column 34 is inserted into the spring member 57 so that the spring member 57 is less likely to tilt.

In addition, on the outer circumference or the inner circumference of the tubular portion 15, the amount of protrusion of the moving member 40 from one end 15a of the tubular portion 15 is detected, and whether or not the opening / closing body 100 is closed with respect to the opening 3 is determined. , An open / close sensor (not shown) is installed to judge. That is, if the amount of protrusion of the moving member 40 from one end 15a of the tubular portion 15 is equal to or greater than a predetermined value, it is detected that "the opening / closing body 100 is open with respect to the opening 3", and the same amount of protrusion is predetermined. If it is less than the value, it is detected that "the opening / closing body 100 is closed with respect to the opening 3".

Further, as shown in FIG. 2, a drive device 70 is arranged on the base portion 31. Further, a lock retainer 75 is arranged at a position adjacent to the drive device 70. The lock retainer 75 is provided with a lock protrusion 75a that engages and disengages with the lock hole 47 (see FIG. 2) of the moving member 40. Further, as shown in FIG. 2, the lock retainer 75 is fitted with a worm gear 73 fixed to the drive device 70.

Then, when power is supplied to the drive device 70 by a power supply means (not shown) and the worm gear 73 rotates, the lock retainer 75 slides in a direction in which the lock retainer 75 approaches and separates from the moving member 40, and the lock protrusion 75a , It is designed to engage and disengage from the lock hole 47 (see FIG. 2) of the moving member 40. When the lock protrusion 75a enters and engages with the lock hole 47 of the moving member 40, the rotation and axial movement of the moving member 40 are restricted, and the lock protrusion 75a moves out of the lock hole 47. Rotation and axial movement of the member 40 are allowed.

Next, the moving member 40 arranged in the tubular portion 15 will be described.

As shown in FIGS. 2 and 4, the moving member 40 in this embodiment has a circular outer peripheral surface and has a substantially cylindrical shape with an opening at the base end side. A spring member 57 is inserted from the opening axial base end side of the moving member 40, and the spring member 57 urges the moving member 40 in a direction protruding from one end 15a of the tubular portion 15 by a predetermined length. It has become like. Although the moving member 40 is urged by the spring member 57, the protrusion 55 fits into the cam groove 60, so that the moving member 40 is prevented from coming off from the tubular portion 15.

Further, on the tip side in the axial direction of the moving member 40, that is, on the tip side in the direction protruding from one end 15a of the tubular portion 15, the protrusion 55 rotates as the cam groove 60 moves, and the angle increases. A variable rotary contact portion 43 is provided. In this embodiment, a small-diameter columnar portion 41 is projected from the center of the axial tip of the moving member 40, and a strip-shaped piece extending in one direction is formed at the tip of the columnar portion 41, and the length thereof is long. Rotational contact portions 43 having arcuate shapes at both ends in the direction are continuously provided. Further, a convex portion 43a is provided so as to project from the center of the rotary contact portion 43 on the outer surface side.

The rotary contact portion 43 can be engaged with and disengaged from the engaging walls 113 and 113 of the pair of engaging portions 110 and 110 provided on the opening / closing body 100, and the first slope 123 of the pair of cam protrusions 120 and 120, It is pressed by 123 and the second slopes 125 and 125 so that it can rotate. Further, the rotary contact portion 43 is configured to contact the pair of cam protrusions 120 and 120 when the opening / closing body 100 is pushed into the opening 3 to rotationally urge the moving member 40.

As shown in FIGS. 6 and 8 to 12, the rotary contact portion 43 rotates with the rotation of the moving member 40 to change its angle, and the pair of engaging portions 110 provided on the opening / closing body 100, It is designed to be disengaged from 110. In this embodiment, as shown in FIG. 1, when the opening / closing body 100 is opened from the opening 3 of the fixing member 1, the pair of engaging portions 110, 110 are arranged in the arrangement direction A (see FIG. 5B). On the other hand, the rotary contact portion 43 is arranged so that the longitudinal directions of the rotary contact portion 43 are orthogonal to each other, and the rotary contact portion 43 can be extracted from the gap between the engaging walls 113 and 113. (See FIG. 8 (c)). In this state, the protrusion 55 is fitted and held in the protruding side stop portion 61 of the cam groove 60, and the moving member 40 protrudes from one end 15a of the tubular portion 15 by a predetermined length. (See FIGS. 6 (a) and 6 (c)).

On the other hand, when the opening / closing body 100 is closed with respect to the opening 3, the longitudinal direction of the rotary contact portion 43 is set along the arrangement direction A (see FIG. 4B) of the pair of engaging portions 110, 110. The rotary contact portion 43 rotates so as to face the opening (see FIG. 11C), and the opening / closing body 100 is locked in a closed state with respect to the opening 3. In this state, the protrusion 55 is fitted and held in the pull-in side stop portion 63 of the cam groove 60, and the moving member 40 is pulled in from one end 15a of the tubular portion 15 by a predetermined length ( See FIG. 6 (b)).

Further, as shown in FIG. 2, an arcuate mounting groove 45 is formed on the outer peripheral surface of the moving member 40 closer to the base end side in the axial direction, and a protrusion forming member is formed in the mounting groove 45. 50 is attached. The protrusion forming member 50 is curved so as to form an arc shape, and is a pair of a main body 51 that is inserted into the mounting groove 45 and mounted, and a pair that protrudes from both ends of the main body 51 in the outer diameter direction of the moving member 40. It has protrusions 55 and 55. Further, the protrusion forming member 50 is formed by appropriately bending a metal wire having a circular cross section made of a metal material such as stainless steel or a spring steel material. In this embodiment, the protrusion forming member 50, which is separate from the moving member 40, is attached to provide the protrusion 55, but the protrusion may be integrally formed on the moving member 40. Good.

Further, a lock hole 47 having a substantially square hole shape is formed on the outer periphery of the moving member 40 on the base end side opposite to the protruding direction from one end 15a of the tubular portion 15. The lock protrusion 75a of the lock retainer 75 is engaged with and disengaged from the lock hole 47, and the moving member 40 is locked in a state of being pulled in from one end 15a of the tubular portion 15, or the locked state is released. That is, when the protrusion 55 is located at the pull-in side stop portion 63 of the cam groove 60 and the moving member 40 is pulled in from one end 15a of the tubular portion 15 by a predetermined length (see FIG. 6B). The lock protrusion 75a of the lock retainer 75 engages with the lock hole 47 to restrict further pulling of the moving member 40. As a result, the protrusion 55 becomes immovable from the retractable stop 63, and the opening / closing body 100 is locked to the opening 3 in a closed state. On the other hand, in a state where the lock protrusion 75a of the lock retainer 75 has come out of the lock hole 47, the moving member 40 can rotate and move in the axial direction.

The push-up device 10 is configured so that different operations are performed depending on whether the moving member 40 is pushed by the opening / closing body 100 or not by the opening / closing body 100.

That is, when the opening / closing body 100 is pushed in while the protruding portion 55 is located at the protruding side stop portion 61, the cam mechanism presses the rotary contact portion 43 to rotationally urge the moving member 40 to project. The portion 55 is moved along the cam groove 60 so as not to come into contact with the push-in stopper portion 65, and is guided to the retract-side stop portion 63 (see FIGS. 9 to 11). On the other hand, when only the moving member 40 is pushed in while the protruding portion 55 is located at the protruding side stop portion 61, the moving member 40 is pushed in without rotating, and the protruding portion 55 pushes the stopper portion 65. (See FIG. 7).

In this embodiment, the protrusion 55 is provided on the moving member 40 side and the cam groove 60 is formed on the tubular portion 15, but the cam groove is provided on the moving member side and the protrusion is provided on the tubular portion side. It may be provided (this will be described in the embodiment described later). Further, the shape and structure of each member such as the main body, the moving member, the protrusion, the cam groove, and the contacting portion of the opening / closing body, which constitute the pushing-up device for the opening / closing body in the present invention, are limited to the above shapes. It's not something.

The above operation will be described in relation to the operation of the protrusion 55 with respect to the cam groove 60.

That is, as shown in FIG. 7A, when the protrusion 55 is positioned and fitted to the protruding side stop portion 61 of the cam groove 60, the moving member 40 has a predetermined length from one end 15a of the tubular portion 15. It is protruding. From this state, when only the moving member 40 is pushed against the urging force of the spring member 57 without closing the opening / closing body 100 (that is, the rotary contact portion 43 moves without being pushed by the cam protrusion 120). The member 40 is pushed in), the moving member 40 does not rotate, the protrusion 55 comes out of the protruding side stop portion 61, and the protrusion 55 is a tubular portion 15 as shown in FIG. 7 (b). Moves to the axial base end side of the above, enters the recessed push-stopper portion 65, and comes into contact with the recessed stopper portion 65. As a result, further pushing of the moving member 40 is restricted, and further pulling of the moving member 40 from one end 15a of the tubular portion 15 can be restricted.

On the other hand, as shown in FIGS. 8A and 8B, the protrusion 55 is positioned and fitted at the protruding side stop portion 61 of the cam groove 60, and the moving member 40 is predetermined from one end 15a of the tubular portion 15. When the opening / closing body 100 is closed with respect to the opening 3 in a state where the length is projected, the rotary contact portion 43 passes between the engaging walls 113 and 113 of the pair of engaging portions 110 and 110. As shown in FIGS. 9B and 9C, the first slopes 123 and 123 of the pair of cam protrusions 120 and 120 press the rotary contact portion 43. Then, as shown in FIG. 9C, the rotary contact portion 43 rotates in a predetermined rotation direction B (counterclockwise direction in this case), and the moving member 40 rotates following this to rotate the spring member 57. The protrusion 55 escapes from the protruding side stop portion 61, and the protrusion 55 moves while being guided by the first guide groove 66 (FIG. 9A, FIG. 9A, See (b)). At this time, as the moving member 40 rotates, the protrusion 55 rotates in the circumferential direction of the tubular portion 15 and is displaced in the circumferential direction so as not to align with the push stopper portion 65 in the axial direction. , It is designed so as not to come into contact with the push-in stopper portion 65.

When the moving member 40 is further pushed through the opening / closing body 100, as shown in FIG. 10C, the moving member 40 further rotates from the first slopes 123 and 123 of the pair of cam protrusions 120 and 120, and the moving member 40 is further rotated. The protrusion 55 abuts on the stop protrusion 66a of the cam groove 60 (see FIGS. 10 (a) and 10 (b)), and then, as shown in FIG. 11 (a), the protrusion 55 comes into contact with the retractable stop portion 63. It is guided and fitted to the pull-in side stop portion 63. As a result, the moving member 40 is held in a state of being pulled in by a predetermined length from one end 15a of the tubular portion 15. In this state, since the longitudinal direction of the rotary contact portion 43 faces along the arrangement direction A of the pair of engaging portions 110, 110 (see FIG. 11C), both ends of the rotary contact portion 43 in the longitudinal direction. However, the pair of engaging portions 110, 110 can be engaged with the engaging walls 113, 113, and the opening / closing body 100 is locked in a closed state with respect to the opening 3.

In the above state, when the moving member 40 is further pushed through the opening / closing body 100, the protrusion 55 is pulled out of the pull-in side stop portion 63, and the pull-in side stop portion 63 and the stop protrusion portion are as follows. It passes between 66a and moves toward the second guide groove 67 side. That is, the second slope 125 provided on the cam protrusion 120 in this embodiment is shown in FIG. 12 when the opening / closing body 100 is pushed in while the protrusion 55 is located at the pull-in side stop portion 63 of the cam groove 60. As shown in c), the rotation of the rotation contact portion 43 is allowed. Therefore, as shown in FIG. 12 (c), when the rotation contact portion 43 is pressed by the second slopes 125 and 125 of the pair of cam protrusions 120 and 120 and rotates in the rotation direction B, it moves following the rotation contact portion 43. The member 40 rotates and is pushed against the urging force of the spring member 57, the protrusion 55 comes out of the pull-in side stop 63, and while being guided by the guide surface 66b of the stop protrusion 66a, the pull-in side stop It passes between 63 and the stop protrusion 66a and moves toward the second guide groove 67 side. After that, the moving member 40 is pressed in the direction of protruding from one end 15a of the tubular portion 15 by the urging force of the spring member 57, so that the protruding portion 55 is guided by the second guide groove 67 and the moving member 40 rotates. The protrusion 55 is extruded while rotating in the direction B, and again, as shown in FIGS. 8A and 8B, the protrusion 55 is fitted into the protruding side stop portion 61 of the cam groove 60 to form a tubular portion. The moving member 40 is held in a state of protruding from one end 15a of the 15 by a predetermined length.

Next, the usage method and the action and effect of the push-up device 10 having the above structure will be described.

As shown in FIGS. 8A and 8B, the protruding portion 55 is located at the protruding side stop portion 61 of the cam groove 60, and the moving member 40 protrudes from one end 15a of the tubular portion 15 by a predetermined length. , The opening / closing body 100 is closed with respect to the opening 3. Then, as shown in FIGS. 9 (b) and 9 (c), the first slopes 123 and 123 of the pair of cam protrusions 120 and 120 press the rotary contact portion 43, and thus as shown in FIG. 9 (c). In addition, the rotary contact portion 43 and the moving member 40 rotate in the rotation direction B, and the protrusion 55 that has come out of the protruding side stop portion 61 is displaced in the circumferential direction with respect to the push stopper portion 65, and the first guide After moving while being guided by the groove 66 (see FIGS. 9A and 9B) and contacting the stop protrusion 66a (see FIGS. 10A and 10B), the retractable stop portion 63 Guided by, it is located at the pull-in side stop portion 63. As a result, the moving member 40 is held in a state of being pulled in from one end 15a of the tubular portion 15 by a predetermined length, and both ends of the rotary contact portion 43 in the longitudinal direction are engaged with the pair of engaging portions 110 and 110. Since the joint walls 113 and 113 can be engaged with each other (see FIG. 11C), the opening / closing body 100 is held in a closed state with respect to the opening 3.

In the above state, the moving member 40 can be further pushed by rotating the worm gear 73 in a predetermined direction by the driving device 70 and engaging the lock protrusion 75a of the lock retainer 75 with the lock hole 47 of the moving member 40. It disappears. As a result, the protrusion 55 cannot be removed from the retractable stop 63 of the cam groove 60, and the opening / closing body 100 can be locked in the closed state. Further, the worm gear 73 is rotated in the direction opposite to the above, and the lock protrusion 75a of the lock retainer 75 is removed from the lock hole 47 of the moving member 40 to release the inaccessible state of the moving member 40 and open / close. The locked state of the body 100 can be released.

When the opening / closing body 100 is pushed in from the above state, as shown in FIG. 12 (c), the second slopes 125 and 125 of the pair of cam protrusions 120 and 120 press the rotary contact portion 43 to rotate. The contact portion 43 and the moving member 40 rotate to allow the protrusion 55 to come out of the retractable stop portion 63, and while being guided by the guide surface 66b of the stop protrusion 66a, the retractable side stop portion 63 and the stop protrusion 66a It passes through the space and moves toward the second guide groove 67 side (see FIG. 12A). After that, the moving member 40 is pressed in the direction of protruding from one end 15a of the tubular portion 15 by the urging force of the spring member 57, the protrusion 55 is guided by the second guide groove 67, and the moving member 40 rotates. As shown in FIGS. 8A and 8B, the protrusion 55 is fitted into the protruding side stop portion 61 of the cam groove 60, and is once again extruded from one end 15a of the tubular portion 15. The moving member 40 is held in a state of protruding by a predetermined length. At the same time, since the rotational contact portion 43 rotates so as to be orthogonal to the arrangement direction A of the pair of engaging portions 110, 110, the rotational contact is made through the gap between the engaging walls 113, 113. The portion 43 can be pulled out, and the locked state of the opening / closing body 100 is released. Further, since the moving member 40 presses the inner surface of the opening / closing body 100 and pushes up the opening / closing body 100 by a predetermined height from the opening 3 of the fixing member 1 (lifter operation), the opening / closing body 100 can be opened manually.

On the other hand, as shown in FIG. 7A, the protrusion 55 is located at the protruding side stop portion 61 of the cam groove 60, and the moving member 40 is opened and closed in a state where the moving member 40 protrudes by a predetermined length from one end 15a of the tubular portion 15. When only the moving member 40 is pushed in without closing the body 100, the result is as follows. That is, the moving member 40 does not rotate, the protruding portion 55 comes out of the protruding side stop portion 61, and the protruding portion 55 is on the axial base end side of the tubular portion 15 as shown in FIG. 7 (b). Since it moves into the recessed pushing stopper portion 65 and comes into contact with the moving member 40, further pushing of the moving member 40 can be restricted.

At this time, an opening / closing sensor (not shown) determines whether or not the opening / closing body 100 is closed with respect to the opening 3, but as described above, the moving member 40 is not pushed by the opening / closing body 100. In this case, since the pushing of the moving member 40 is restricted, it is surely regulated that the opening / closing body 100 is actually detected as a closed state even though the opening / closing body 100 is not closed with respect to the opening 3. (It is possible to suppress erroneous detection of the closed state of the opening / closing body 100).

Further, in this embodiment, as shown in FIGS. 6 and 7, the push-in stopper portion 65 has a recess in which the protrusion 55 fits. Therefore, when only the moving member 40 is pushed in without pushing the opening / closing body 100, the protrusion 55 fits into the push stopper portion 65 which is a recess, and the protrusion 55 is firmly held in the recess. This makes it possible to more reliably regulate the pushing of the moving member 40.

Further, in this embodiment, the push-up device 10 is used to open / close and lock the opening / closing body 100 with respect to the opening 3, and the opening / closing body 100 includes an engaging portion 110 and a cam mechanism. A cam protrusion 120 is provided, and the rotary contact portion 43 can be engaged with and disengaged from the engaging portion 110. The rotary contact portion is in a state where the protrusion 55 is located at the protruding side stop portion 61. The rotary contact portion 43 engages with the engaging portion 110 and the opening / closing body 100 is pushed in while the engagement portion 43 and the engaging portion 110 are disengaged and the protrusion 55 is located at the retracting side stop portion 63. Occasionally, it is configured to abut on the protrusion 55 to rotationally urge the moving member 40.

Therefore, with the protrusion 55 located at the protruding side stop 61 and the moving member 40 protruding from one end 15a of the tubular portion 15 by a predetermined length, the opening / closing body 100 is pushed in, and the protrusion 55 is pulled in. When located at 63, the rotary contact portion 43 can engage with the engaging portion 110 and lock the opening / closing body 100 to the opening 3 in a closed state (see FIG. 11). Further, since the engagement between the rotary contact portion 43 and the engaging portion 110 is released in the state where the protruding portion 55 is located at the protruding side stop portion 61 (see FIG. 8), the opening / closing body 100 is opened. At the same time, the moving member 40 is urged by the spring member 57 and protrudes from one end 15a of the tubular portion 15, so that the opening / closing body 100 can be pushed up. As described above, in this embodiment, the push-up structure of the opening / closing body 100 and the opening / closing lock structure of the opening / closing body 100 can be used in combination.

Further, in this embodiment, the cam groove 60 has a shape that orbits along the circumferential direction of the moving member 40 or the tubular portion 15 (here, orbits along the circumferential direction of the tubular portion 15). In the cam protrusion 120, the first slope 123 that rotates the rotary contact portion 43 and the protrusion 55 are retracted when the opening / closing body 100 is pushed in while the protrusion 55 is located at the protrusion side stop portion 61. It has a second slope 125 that allows the rotation of the rotation contact portion 43 when the opening / closing body 100 is pushed in while being located at the side stop portion 63. Therefore, when the opening / closing body 100 is pushed in, the rotary contact portion 43 is pressed by the two slopes of the first slope 123 and the second slope 125 of the cam protrusion 120, so that the opening / closing body 100 is pushed in in two steps. It can be applied to a so-called push-push type structure in which the opening / closing body 10 is opened and closed.

13 and 14 show other embodiments of the opening / closing body pushing device according to the present invention. The same parts as those of the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the push-up device 10A (hereinafter, referred to as "push-up device 10A") of the opening / closing body of this embodiment, a protrusion 55A is provided on the inner circumference of the tubular portion 15, and the protrusion 55A is projected on the outer circumference of the moving member 40. The structure is such that a cam groove 60A into which the portion 55A is fitted is formed. In addition, in FIG. 13 and FIG. 14, the tubular portion 15 is described by a virtual line for convenience in order to explain the structure in an easy-to-understand manner.

Further, the cam groove 60A formed on the outer periphery of the moving member 40 is in a state where the moving member 40 is projected from one end 15a of the tubular portion 15 by a predetermined length, similarly to the cam groove 60 of the embodiment (FIG. 13). (See), with the protruding side stop portion 61 holding the protrusion 55 and the moving member 40 pulled in from one end 15a of the tubular portion 15 by a predetermined length (see FIG. 14), the pull-in side holding the protrusion 55A. It has a stop portion 63 and a push stopper portion 65 provided at a position facing the protruding side stop portion 61 in the axial direction. The protruding side stop portion 61 and the retractable side stop portion 63 of the cam groove 60A in this embodiment are provided in the opposite directions to the cam groove 60 in the embodiment in the axial direction of the tubular portion 15. That is, the retractable side stop portion 63 is formed at a position close to one end 15a of the tubular portion 15, while the protruding side stop portion 61 is provided with the retractable side stop portion 63 in the tubular portion 15. It is formed at a position separated from one end 15a of the tubular portion 15 rather than the position. And, also in this embodiment, the same action and effect as the said embodiment can be obtained.

FIG. 15 shows still another embodiment of the opening / closing body pushing device according to the present invention. The same parts as those of the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 15, the shape of the cam groove 60B of the push-up device 10B of the opening / closing body of this embodiment (hereinafter referred to as “push-up device 10B”) is different from that of the cam groove 60 of the embodiment. In the cam groove 60B of this embodiment, a protruding side stop portion 61 is formed on one end 15a side in the axial direction of the tubular portion 15, and a retractable side stop portion 63A is formed on the other end side in the axial direction. , Makes a round-trip passage.

Note that the retractable side stop portion 63A is not formed in a concave groove shape unlike the retractable side stop portion 63 in the above embodiment. Therefore, with the protrusion 55 positioned at the retractable stop portion 63A, the lock protrusion 75a of the lock retainer 75 engages with the lock hole 47 of the moving member 40 to resist the urging force of the spring member 57. The moving member 40 is maintained in a state of being pulled in from one end 15a of the tubular portion 15 by a predetermined length. Further, a linear groove 68 extending linearly along the axial direction of the tubular portion 15 is formed from the protruding side stop portion 61 provided at one end 15a of the cam groove 60B.

Further, the push-in stopper portion 65A provided at a position facing the protruding side stop portion 61 in the axial direction moves the protrusion 55 in the direction opposite to the direction in which the protrusion portion 55 is moved to the pull-in side stop portion 63A. , Forming an inclined surface.

Then, as shown in FIG. 15A, when the moving member 40 is pushed in regardless of the opening / closing body 100 in a state where the protrusion 55 is positioned and fitted to the protruding side stop portion 61, the moving member 40 Does not rotate, and the protruding portion 55 protruding from the protruding side stop portion 61 is guided by the linear groove 68 and abuts on the inclined stopper portion 65A as shown in FIG. 15 (b).

On the other hand, as shown in FIG. 15A, when the moving member 40 is pushed through the opening / closing body 100 in a state where the protrusion 55 is positioned and fitted to the protruding side stop portion 61, the cam projection 120 becomes the first. The rotary contact portion 43 is pressed by the slope 123, the rotary contact portion 43 and the moving member 40 are pushed in while rotating, and the protrusion 55 protruding from the protruding side stop portion 61 is pushed in an inclined surface shape. It moves to the pull-in side stop portion 63A side without contacting the stopper portion 65A. Then, when the protrusion 55 is positioned at the retractable stop portion 63A, the lock protrusion 75a of the lock retainer 75 engages with the lock hole 47 of the moving member 40, so that the moving member 40 is designated from one end 15a of the tubular portion 15. The length is kept retracted. When the lock protrusion 75a of the lock retainer 75 comes out of the lock hole 47, the protrusion 55 moves in the direction opposite to the above-mentioned moving direction due to the urging force of the spring member 57, and the moving member 40 is pulled in. While rotating in the direction opposite to the time, it is projected from one end 15a of the tubular portion 15 by a predetermined length (that is, the moving member 40 is reciprocally rotated).

Then, in this embodiment, the push-in stopper portion 65A has an inclined surface that moves the protrusion 55 in the direction opposite to the direction in which the protrusion 55 is moved toward the pull-in side stop portion 63A. Therefore, when only the moving member 40 is pushed in without pushing the opening / closing body 100, it is restricted from coming into contact with the pushing stopper portion 65A having an inclined surface and moving to the pulling side stop portion 63A side. This makes it possible to more reliably regulate the pushing of the moving member 40.

Further, in this embodiment, as described above, the cam groove 60B has a reciprocating passage having a protruding side stop portion 61 at one end and a retractable side stop portion 63A at the other end, and the cam protrusion 120 protrudes. With the portion 55 located at the protruding side stop portion 61, the projecting portion 55 has a slope for rotating the rotary contact portion 43 when the opening / closing body 100 is pushed in, and the protruding portion 55 is located at the retracting side stop portion 63A. In this state, it has a lock retainer 75 that engages with the moving member 40 and holds the retracted state of the moving member 40. Therefore, apart from the lock mechanism of the opening / closing body 100, a door lock interlocking push-up device can be obtained.

16 to 21 show still another embodiment of the opening / closing body pushing device according to the present invention. The same parts as those of the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The structure of the push-up device 10C (hereinafter, referred to as "push-up device 10C") of the opening / closing body of the embodiment is different from that of the embodiment in that the structure of pressing the rotary contact portion 43 of the moving member 40 is different.

As shown in FIGS. 16 and 17, the push-up device 10B accommodates the case 80 integrally attached to the opening / closing body 100 or fixed with an adhesive or the like, and the case 80 so as to be rotatable and axially slidable in the case 80. It has a rotating body 85 to be formed, a cap 90 attached to the case 80, and a spring member 95 interposed between the case 80 and the rotating body 85.

With reference to FIG. 18, the case 80 has a ceiling wall 81 having a shaft portion 81a projecting in the center and a peripheral wall 82 erected from the peripheral edge of the ceiling wall 81. It has a substantially cylindrical shape with an opening on the opposite side. A pair of engaging holes 82a, 82a are formed in the peripheral wall 82. Further, on the inner surface side of the ceiling wall 81, a pair of cam protrusions 83, 83 having an inclined cam surface are provided so as to project.

Further, as shown in FIGS. 16 and 17, the rotating body 85 is inclined by projecting from the outer surface side of the substrate 86 having a shaft hole 86a into which the shaft portion 81a of the case 80 is inserted. It has a pair of cam protrusions 87, 87 having a cam surface, and a pair of engaging protrusions 88, 88 projecting from the inner surface side of the substrate 86. Further, the pair of engaging protrusions 88 and 88 are adapted to engage with the rotary contact portion 43 provided on the moving member 40 (see FIG. 21).

Further, as shown in FIGS. 16 and 17, the cap 90 has a bottomed cylindrical shape with an upper opening, and is provided with an engaging portion 91a having a through-hole shape through which the rotary contact portion 43 can pass. It has a bottom wall 91, a cylindrical peripheral wall 92 erected from the peripheral edge of the bottom wall 91, and a pair of engaging claws 93, 93 formed on the peripheral wall 92 so as to be flexible via a slit 93a. ing.

Then, with the spring member 95 arranged in the case 80, the shaft portion 81a of the case 80 is inserted into the shaft hole 86a of the rotating body 85, the rotating body 85 is rotatably housed in the case 80, and then the cap is used. By inserting the 90 into the case 80 and engaging the pair of engaging claws 93 and 93 with the pair of engaging holes 82a and 82a of the case 80, each member is assembled as shown in FIG. It is designed to be integrated. In the assembled state, the rotating body 85 is rotatably supported with respect to the case 80, and the urging force of the spring member 95 causes the rotating body 85 to rotatably support the ceiling wall 81 of the case 80 from the substrate 86 of the rotating body 85. Being urged to separate. Further, the pair of cam protrusions 83, 83 on the case 80 side and the pair of cam protrusions 87, 87 on the rotating body 85 side are arranged to face each other.

Then, when the opening / closing body 100 is pushed into the opening 3 in a state where the protrusion 55 is positioned and fitted to the protruding side stop portion 61, the engaging portion 91a of the cap 90 is engaged as shown in FIG. , The rotary contact portion 43 passes through and engages with the pair of engaging protrusions 88 and 88 of the rotating body 85, and the pair of cam protrusions 83 and 83 on the case 80 side causes the pair of cams of the rotating body 85. The protrusions 87 and 87 are pressed, and the rotating body 85 rotates in a predetermined direction. As a result, as shown in FIG. 21, the rotary contact portion 43 rotates in a predetermined direction via the pair of engaging protrusions 88 and 88 of the rotating body 85, the moving member 40 rotates, and the rotating contact portion 40 rotates. The contact portion 43 can be engaged with the through-hole-shaped engaging portion 91a.

In this embodiment, the pair of cam protrusions 83, 83 provided on the case 80 and the pair of cam protrusions 87, 87 provided on the rotating body 85 form the "cam mechanism" in the present invention.

Then, in this embodiment, a cam mechanism for rotating the rotary contact portion 43 (a pair of cam protrusions 83, 83 on the case 80 side and a pair of cam protrusions 87, 87 on the rotating body 85 side) and a rotation contact. Since the engaging portion 81a with which the contact portion 43 engages and disengages is integrated into the assembly body in which the case 80, the rotating body 85, the cap 90, and the spring member 95 are assembled and integrated, the opening / closing body 100 The cam mechanism and the engaging portion can be arranged relatively easily on the side. Further, since the rotary contact portion 43 is inserted into the through-hole shaped engaging portion 81a and engaged with the engaging portion 91a in a state of being housed in the case 80 and the cap 90, it rotates from the engaging portion 91a. The contact portion 43 is less likely to come off, and the engaged state can be firmly maintained.

The present invention is not limited to the above-described embodiments, and various modified embodiments are possible within the scope of the gist of the present invention, and such embodiments are also included in the scope of the present invention. ..

3 Openings 10, 10A, 10B, 10C Pushing device for opening / closing body 11 Main body member 15 Cylindrical part 20 First main body part 30 Second main body part 40 Moving member 43 Rotating contact part 55, 55A Protrusion part 57 Spring member 60 , 60A, 60B Cam groove 61 Projection side stop 63, 63A Retract side stop 65, 65A Push stopper 70 Drive device 73 Worm gear 75 Lock retainer 77 Cap 80 Case 85 Rotating body 90 Press member 95 Spring member 100 Opening / closing body 110 Joint part 120 Cam protrusion 123 First slope 125 Second slope

Claims (6)

1. An opening / closing body pushing device for pushing up an opening / closing body that can be opened / closed at an opening by a predetermined height with respect to the opening.
   A main body member having a tubular part and
   A moving member arranged in the tubular portion and held so as to be rotatable and axially movable with respect to the tubular portion.
   It has a spring member that urges the moving member in a direction protruding from one end of the tubular portion.
   A protrusion is provided on one of the moving member or the tubular portion.
   A cam groove into which the protrusion is fitted is provided on the other side of the moving member or the tubular member.
   A rotary contact portion is provided on the tip end side of the moving member so that the protrusion rotates as the cam groove moves.
   The cam groove has a protruding side stop portion for holding the protrusion and a predetermined length of the moving member from one end of the tubular portion in a state where the moving member is projected from one end of the tubular portion by a predetermined length. The push-in stopper portion has a pull-in side stop portion that holds the protruding portion in a retracted state and a push-in stopper portion provided at a position that faces the protruding side stop portion in the axial direction. , It is configured to restrict the pushing of the moving member when the protrusion comes into contact with the moving member.
   The opening / closing body is provided with a cam mechanism that urges the moving member to rotate at a predetermined angle via the rotary contact portion when the opening / closing body is pushed into the opening.
   When the opening / closing body is pushed in while the protrusion is located on the protruding side stop portion, the cam mechanism presses the rotation contact portion to rotationally urge the moving member to rotate the protrusion. A push-up device for an opening / closing body, characterized in that the protrusion is moved along the cam groove and guided to the pull-in side stop portion so as not to come into contact with the push stopper portion.
2. The push-up device for an opening / closing body according to claim 1, wherein the push-in stopper portion forms a recess in which the protrusion fits.
3. The push-up device for an opening / closing body according to claim 1, wherein the push-in stopper portion has an inclined surface that moves the protrusion portion in a direction opposite to the direction in which the protrusion portion is moved toward the pull-in side stop portion side.
4. The opening / closing body pushing device is used to open / close / lock the opening / closing body with respect to the opening.
   The opening / closing body is provided with an engaging portion and a cam protrusion forming the cam mechanism.
   The rotary contact portion can be engaged with and disengaged from the engaging portion, and the rotary contact portion and the engaging portion can be engaged with each other in a state where the protrusion is located at the protruding side stop portion. The rotary contact portion engages with the engaging portion in a state where the protrusion is positioned at the pull-in side stop portion, and at the same time, when the opening / closing body is pushed in, the rotary contact portion abuts on the cam protrusion. The push-up device for an opening / closing body according to any one of claims 1 to 3, which is configured to rotationally urge the moving member.
5. The cam groove has a shape that orbits along the circumferential direction of the moving member or the tubular portion.
   The cam projection has a first slope that rotates the rotary contact portion when the opening / closing body is pushed in a state where the protrusion is located at the protrusion side stop portion, and the protrusion portion stops on the retract side. The push-up device for an opening / closing body according to claim 4, which has a second slope that allows rotation of the rotating contact portion when the opening / closing body is pushed in while being located at the portion.
6. The cam groove is a reciprocating passage having the protruding side stop portion at one end and the retractable side stop portion at the other end.
   The cam protrusion has a slope that rotates the rotary contact portion when the opening / closing body is pushed in with the protrusion located at the protrusion side stop portion.
   The push-up of the opening / closing body according to claim 4, which has a lock retainer that engages with the moving member and holds the retracted state of the moving member in a state where the protrusion is located at the retracting side stop portion. apparatus.

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