TWM621719U - Toy gun capable of ejecting magazine automatically and magazine device thereof - Google Patents

Abstract

A toy gun comprises a gun body defining a magazine with an upward opening, a magazine mounted on the gun body, a pushing unit for pushing the projectile, and a limiting unit. The limiting unit includes an abutting piece installed between the bomb pushing unit and a latching unit, and an ejecting elastic element abutting between the gun body and the magazine. The abutting member moves between a latching position and a releasing position. When the latching position and the magazine contains a projectile, the abutting member is pushed by the pushing position, passes through the magazine and is stuck in the magazine. When the latching unit is in the release position and there is no projectile in the magazine, the abutting member is released by the ejecting unit and disengages from the latching unit, so that the magazine is subjected to the elastic force of the ejecting elastic element, Partially pierced out of the gun body. Thereby, when the projectile is exhausted, the magazine is automatically ejected.

Description

Toy gun with automatic magazine ejection and magazine device thereof

The new model relates to a toy gun, in particular to a toy gun that can automatically eject a magazine and its magazine device.

ROC Patent No. M568960 discloses a conventional "magazine automatic ejection structure", which mainly includes a gun body, a simulated projectile mounted on the gun body and suitable for accommodating BB bullets, and a swingable ground pivot. A projectile tenon arranged on the gun body and used to snap against the simulated projectile, a telescopic push rod elastically arranged on the projectile tenon and used to block the simulated projectile from exiting the gun body, and a telescopic push rod slidably installed on the gun body The gun body is used to drive the bolt structure of the projectile tenon. The simulated projectile is provided with a push elastic member for pushing the BB bomb. When the BB shell is exhausted, the elastic pusher will push the telescopic push rod to connect to the bolt structure, so that the user only needs to operate the bolt structure to drive the telescopic push rod to separate from the simulated projectile, then the user can Through the elastic force, the simulated projectile is partially ejected from the gun body, and it is convenient to replace the simulated projectile or fill the BB bullet.

However, in the M568960 patent case, in the process of firing BB shells, it is necessary to wait until no BB shells are fired to know that the BB shells are exhausted, and it is necessary to manually operate the BB shells. Only the bolt structure can make the simulated projectile ejected by elastic force, so there is still room for improvement in terms of operational convenience.

Therefore, the purpose of the present invention is to provide a toy gun and its magazine device which can automatically detect when the projectiles are exhausted and can automatically eject the magazine.

Therefore, the novel toy gun capable of automatically ejecting a magazine includes a gun body, a latching unit, a magazine, a pushing unit, and a limiting unit.

The gun body defines a magazine with an upward opening.

The latching unit is installed on the gun body and adjacent to the magazine.

The magazine is suitable for accommodating at least one projectile, and includes a magazine opening suitable for outputting the at least one projectile. The magazine moves relative to the gun body between a loading position and an unloading position. When the magazine is at the loading position , the magazine goes deep into the magazine, and when the magazine is withdrawn, the magazine part penetrates out of the gun body.

The ejecting unit is installed in the magazine and includes a ejecting member suitable for pushing the at least one projectile toward the magazine opening. The ejecting unit changes between a state of sending a bomb and an empty state. In the ammunition state, the pusher is away from the magazine opening, and in the empty state, the pusher is adjacent to the magazine mouth.

The limiting unit includes an abutting member movably installed between the ejecting unit and the latching unit, and a cassette ejecting elastic element, and the abutting member is positioned opposite to the latching unit. A latching position moves between a latching position and a releasing position. When the latching position is in the latching position, the abutting member is pushed by the ejecting unit in the feeding state, passes through the magazine and is latched against the latching unit. When in position, the abutting member is released by the ejecting unit in the empty state, and disengages from the latching unit, and the ejecting elastic element abuts between the gun body and the magazine, constantly generating the magazine to be released from the magazine. The spring force with which the loading position moves towards the unloading position.

A magazine device is mounted on a toy gun, the toy gun includes a gun body defining a magazine with an upward opening, and a latching unit mounted on the gun body and adjacent to the magazine, the magazine device including a A magazine, a pusher unit, and a limit unit.

The magazine is suitable for accommodating at least one projectile, and includes a magazine opening suitable for outputting the at least one projectile. The magazine moves relative to the gun body between a loading position and an unloading position. When the magazine is at the loading position , the magazine goes deep into the magazine, and when the magazine is withdrawn, the magazine part penetrates out of the gun body.

The bomb-pushing unit is installed in the magazine, and includes a bomb-pushing member suitable for pushing the at least one projectile toward the magazine opening one by one. In the ammunition feeding state, the pusher is away from the magazine opening, and in the empty ammunition state, the pusher is adjacent to the magazine opening.

The limiting unit includes an abutting member movably installed between the pushing unit and the latching member, and a cassette ejecting elastic element, the abutting member is at a latching position and a releasing position relative to the latching unit When moving between positions, at the latching position, the abutting member is pushed by the pusher unit in the feeding state, passes through the magazine and is stuck against the latching unit, and when the release is released When placed in position, the abutting member is released by the ejecting unit in the empty state, and disengages from the latching unit, and the ejecting elastic element abuts between the gun body and the magazine, constantly generating the magazine to be released from the magazine. The elastic force of the loading position moving towards the unloading position.

The function of the new model is: through the change of the position of the push unit and the limit unit, it can automatically detect whether the projectile is exhausted, and when the projectile is exhausted, the connection relationship between the magazine and the locking unit can be automatically released, The automatic partial ejection of the gun body can not only simplify the structure, but also greatly improve the convenience of operation.

1: gun body

11: gun body

12: Magazine seat

120: Magazine

121: Stop surface

2: Card unit

21: Clips

22: latch

23: Clip elastic element

3: Magazine

31: Box Road

32: Box mouth

33: Backplane

331: Channel

34: Import slot

341: Inclined entry

342: Straight into the segment

35: Export slot

4: push bomb unit

41: Pusher

42: The first rotating part

421: Limiting part

422: The Force

43: Second rotating part

431: First convex part

432: Second convex part

44: The third rotary

441: Dial Control Department

45: Linkage elastic element

5: Limit unit

51: Abutment

52: Snap against the elastic element

53: Out of the box elastic element

6: Unloading unit

61: Stop the tenon

7: projectile

X: Front and rear direction

Z: height direction

Y: width direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is an incomplete cross-sectional view illustrating an embodiment of the toy gun of the new model that can automatically eject a magazine; FIG. 2 is an incomplete partial perspective view, illustrating that a magazine of this embodiment is located at a box-in position; FIG. 3 is an incomplete perspective exploded view illustrating a magazine seat, a latching unit, the A magazine, a pusher unit, and a limit unit; FIG. 4 is a perspective exploded view of the magazine in this embodiment; FIG. 5 is a partially enlarged cross-sectional view, illustrating that the pusher unit in this embodiment is a feeder state, and an abutting member is located at a latching position; Fig. 6 is a partial enlarged cross-sectional view of Fig. 5; Fig. 7 is a cross-sectional view taken along the line VII-VII in Fig. 5; Fig. 8 is a cross-sectional view similar to that of Fig. 5, but only remaining A projectile; Fig. 9 is a partial sectional enlarged cross-sectional view similar to Fig. 6, but the abutting member is in a release position; Fig. 10 is a cross-sectional view similar to Fig. 8, but the ejector unit is in an empty state, and Release the abutment in the release position; Figure 11 is a sectional view taken along line XI-XI in Figure 10; and Figure 12 is an incomplete partial perspective view similar to Figure 2, but with the magazine in the first eject position.

Referring to Figure 1, Figure 2 and Figure 3, an embodiment of the new toy gun capable of automatically ejecting a magazine includes a gun body 1, a latching unit 2, a magazine 3, a pushing unit 4, a limiter Bit unit 5, and an unloading unit 6.

The gun body 1 includes a gun body 11 and a magazine seat 12 detachably mounted on the gun body 11 . The gun body 11 extends along a front-rear direction X. The magazine seat 12 defines a magazine 120 with an opening facing upward and extending along a height direction Z, and has a blocking surface 121 extending from the back along the front-rear direction X and facing downward along the height direction Z.

The latching unit 2 includes a A latch 21 extending toward Z, a latch 22 movably inserted through the latch 21 along the front-rear direction X, and a latch elastic provided between the latch 21 and the latch 22 element 23.

Referring to FIGS. 2 , 3 and 4 , the magazine 3 includes a U-shaped magazine channel 31 suitable for accommodating several projectiles 7 , an opening facing upward and connected to the magazine channel 31 and suitable for outputting the corresponding projectiles 7 A box opening 32, a back plate 33 facing the latching unit 2, an introduction groove 34 formed on the back plate 33 and extending along the height direction Z, and a back plate 33 formed along a width direction Y The lead-out groove 35 is spaced apart from the lead-in groove 34 . The back plate 33 has a channel 331 extending along the front-rear direction X. As shown in FIG. The lead-in slot 34 has an inclined-in section 341 extending from bottom to top from one end adjacent to the lead-out slot 35 toward the other end away from the lead-out slot 35 , and a straight-in section 342 connected to the inclined-in section 341 and extending from bottom to top . The lead-out groove 35 also extends in the height direction Z. As shown in FIG.

The magazine 3 moves relative to the gun body 1 between a box-in position (as shown in Figures 2, 5, and 7) and an ejection position (as shown in Figures 10, 11, and 12). , the magazine 3 goes deep into the magazine, and when the magazine is withdrawn, the magazine 3 partially penetrates the gun body 1 .

In this embodiment, each of the projectiles 7 is in the shape of a sphere, that is, a common BB projectile on the market. The height direction Z, the front-rear direction X, and the width direction Y are substantially perpendicular to each other.

Referring to FIGS. 4 , 5 and 6 , the ejecting unit 4 is installed in the magazine 3 , and includes an elastic force and is suitable for pushing the projectiles 7 to move toward the magazine opening 32 one by one A pusher 41, a first rotary member 42 and a second rotary member 43 pivoted on the magazine 3 and located between the U-shaped magazine channel 31, a first rotary member 42 pivoted between the magazine 3 and the second A third rotating member 44 between the rotating members 43 and a linked elastic element 45 connected to the first rotating member 42 and the third rotating member 44 .

The first rotating member 42 has a position-limiting portion 421 and a pressing portion 422 that rotate in opposite directions.

The second rotating member 43 has a first protruding portion 431 abutting against the pressing portion 422 , and a second protruding portion 432 opposite to the first protruding portion 431 .

The third rotating member 44 has a dial control portion 441 that can be pushed by the elastic pushing member 41 .

The interlocking elastic element 45 constantly generates the force to rotate the limiting portion 421 of the first rotary member 42 away from the box opening 32 , and to rotate the dial control portion 441 of the third rotary member 44 toward the box mouth 32 . Elasticity.

The ejector unit 4 changes between a bomb feeding state (as shown in FIG. 5 and FIG. 8 ) and an empty bomb state (as shown in FIG. 10 ). Away from the magazine opening 32 , in the empty state, the ejector 41 is adjacent to the magazine opening 32 .

Referring to FIG. 3 , FIG. 5 , FIG. 6 and FIG. 7 , the limiting unit 5 includes an abutting member 51 , a latching elastic element 52 , and an ejecting elastic element 53 .

The abutting member 51 is movably inserted through the magazine 3 along the front-rear direction X. The channel 331 is located between the second rotating member 43 and the latch 22 and abuts against the second convex portion 432 of the second rotating member 43 . The abutting member 51 moves relative to the latch 22 of the latching unit 2 between a latching position (as shown in FIGS. 5 and 6 ) and a release position (as shown in FIGS. 9 and 10 ). The abutting member 51 is pushed by the second rotating member 43 of the ejecting unit 4 in the feeding state, passes through the channel 331 of the magazine 3 and abuts against the latch 22 of the latching unit 2 . When in position, the abutting member 51 is released by the second rotating member 43 of the bomb pushing unit 4 in the empty bomb state, and is disengaged from the latch 22 .

The latching elastic element 52 is disposed between the back plate 33 and the abutting member 51 to constantly generate an elastic force for the abutting member 51 to be located at the release position.

The ejecting elastic element 53 abuts between the gun body 1 and the magazine 3 , and constantly generates an elastic force to move the magazine 3 from the loading position to the ejecting position.

The unloading unit 6 includes a blocking tenon 61 pivoted on the gun body 11 and swingable toward the magazine seat 12 . When the blocking tenon 61 swings to be adjacent to the magazine seat 12 , the blocking surface 121 of the magazine seat 12 is blocked, so that the magazine seat 12 is positioned.

Referring to FIGS. 2 , 5 , 6 and 7 , when the magazine 3 is filled with the bullets 7 , the bullet-pushing unit 4 will change to the bullet-feeding state, and at this time, the bullet-pushing member 41 will be The projectiles 7 are pushed away from the box opening 32 , and push the dial control portion 441 of the third rotating member 44 to rotate in the opposite direction of the box opening 32 , and the first rotation is driven by the linking elastic element 45 . The limiting portion 421 of the member 42 is away from the box opening 32, and at the same time, the pressing portion 422 pushes the first convex portion 431 of the second rotating member 43 to rotate toward the abutting member 51, and passes The second protrusion 432 pushes the abutting member 51 to the latching position, so that the abutting member 51 overcomes the elastic force of the latching elastic element 52 and partially penetrates the back plate 33 of the magazine 3 .

When the magazine 3 is inserted into the magazine 120 from top to bottom along the height direction Z and the elastic element 53 is compressed and contracted, the latch 22 on the latching member 21 will be inclined into the magazine first. The segment 341 enters the guide slot 34, and then the oblique entry segment 341 follows the straight entry segment 342. After the magazine 3 is located at the entry position, the latch 22 will block the top of the abutting member 51, so that the The magazine 3 is blocked by the latch 22 , and is stabilized at the box-in position, and is hidden in the gun body 1 .

Referring to FIGS. 8 , 9 and 10 , when the last projectile 7 in the magazine 3 is fired and the pusher 41 moves to the vicinity of the magazine opening 32 , the pusher 41 will push the first projectile 41 The limiting portion 421 of the rotating member 42 rotates toward the box opening 32 to release the third rotating member 44 , and the third rotating member 44 and the second rotating member are driven by the interlocking elastic element 45 43 is rotated toward the box opening 32, at this time, the bomb pushing unit 4 will change to the empty bomb state, and release the abutting member 51, so that the abutting member 51 is subjected to the elastic force of the clamping elastic element 52, Move to the release position in the direction of the box opening 32 to disengage the latch 22 of the latching unit 2 . At this time, in the absence of blocking by the latch 22, the magazine 3 will be acted by the elastic force of the ejecting elastic element 53 as shown in Figure 10, Figure 11 and Figure 12, and along the height direction Z will be It bounces up and down, and in the process of moving, pushes the latch 22 to overcome the elastic force of the latching elastic element 23 and shrinks, until the magazine 3 is located at the retracting position, so that the magazine 3 partially penetrates the The gun body 1 is released from the catch 21 .

When the magazine 3 automatically bounces up to the magazine seat 12 that partially penetrates the gun body 1, a warning and a bouncing sound can be generated to remind the user that the bullets 7 are exhausted and need to be ejected by the upward The magazine 3 supplements the projectiles 7, thereby simulating a rifle in which bullets are filled from above and do not need to be withdrawn from the magazine during World War II, thereby enhancing the sense of presence in battle.

It is worth noting that when the blocking tenon 61 is pulled to swing away from the magazine seat 12 , the blocking tenon 61 will be separated from the magazine seat 12 , so that the magazine seat 12 together with the magazine 3 is dropped from below and is separated from the gun body 11 .

Through the above description, the advantages of the foregoing embodiments can be summarized as follows: the present invention can automatically detect whether the projectile 7 is exhausted through the change of the positions of the projectile pushing unit 4 and the limiting unit 5, and when the projectile 7 is exhausted , the connection between the magazine 3 and the latching unit 2 is automatically released, and the gun body 1 is automatically partially ejected, which not only requires no additional operation, but also simplifies the structure, which can greatly improve the convenience of operation.

However, the above are only examples of the present invention, which should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application for this new model and the contents of the patent specification are still within the scope of the present invention. within the scope of this new patent.

1: gun body

11: gun body

12: Magazine seat

120: Magazine

121: Stop surface

2: Card unit

21: Clips

22: latch

23: Clip elastic element

3: Magazine

31: Box Road

32: Box mouth

33: Backplane

331: Channel

4: push bomb unit

41: Pusher

42: The first rotating part

421: Limiting part

422: The Force

43: Second rotating part

431: First convex part

432: Second convex part

44: The third rotary

441: Dial Control Department

45: Linkage elastic element

5: Limit unit

51: Abutment

52: Snap against the elastic element

53: Out of the box elastic element

6: Unboxing unit

61: Stop the tenon

7: projectile

X: Front and rear direction

Z: height direction

Claims (10)

A toy gun capable of automatically ejecting a magazine, comprising: a gun body defining a magazine with an upward opening; a latching unit mounted on the gun body and adjacent to the magazine; a magazine suitable for accommodating at least one The projectile includes a magazine opening suitable for outputting the at least one projectile. The magazine moves relative to the gun body between a box-in position and a magazine-retract position. When the magazine is in the box-in position, the magazine penetrates into the magazine. , when the magazine is withdrawn, the magazine part penetrates the gun body; a pusher unit is installed in the magazine and includes a pusher that is suitable for pushing the at least one projectile toward the magazine mouth one by one , the bomb-pushing unit changes between a feeding state and an empty state, in the feeding state, the pushing member is far away from the magazine mouth, and in the empty state, the pushing member is adjacent to the magazine mouth; and A limiting unit includes an abutting member movably installed between the pushing unit and the latching unit, and a cassette ejecting elastic element, the abutting member is at a latching position relative to the latching unit and a Moves between release positions, in the latching position, the abutting member is pushed by the ejecting unit in the feeding state, passes through the magazine and latches against the latching unit, and in the releasing position, the abutting member The ejector element is released by the ejecting unit in the empty state and disengaged from the latching unit, the ejecting elastic element abuts between the gun body and the magazine, and constantly generates the magazine to move from the loading position to the retracting position. The elastic force of the box position movement. The toy gun capable of automatically ejecting a magazine according to claim 1, wherein the gun body comprises a gun body, and a magazine seat detachably mounted on the gun body and defining the magazine, the latch The unit includes a magazine mounted on the magazine seat and a A catch piece extending along a height direction, and a catch pin which is elastically inserted through the catch piece along a front-rear direction and used for latching against the abutting piece. The toy gun capable of automatically ejecting a magazine according to claim 2, further comprising an unloading unit, and the magazine seat has a stop surface extending from the back in the front-rear direction, and the unloading unit includes a pivot A blocking tenon on the gun body and swingable toward the magazine seat, the blocking tenon is used to block the blocking surface, so that the magazine seat can be positioned. The toy gun capable of automatically ejecting a magazine according to claim 1, wherein the magazine further comprises a back plate facing the latching unit, an introduction groove formed on the back plate and extending in a height direction, and A lead-out slot formed on the back plate and spaced from the lead-in slot along a width direction, the lead-out slot also extends along the height direction, when the abutting member of the limiting unit moves to the latching position, it is located in the Between the lead-in slot and the lead-out slot, the latching unit includes a latch for latching against the abutting member. When the magazine moves from the ejection position to the entry position along the height direction, the latch Sliding on the lead-in slot, when the magazine moves from the magazine-in position to the magazine-ejection position along the height direction, the latch slides on the lead-out slot. The toy gun capable of automatically ejecting a magazine according to claim 4, wherein the introduction groove has a sloping section extending from bottom to top from one end adjacent to the guide groove toward the other end away from the guide groove, and is connected to the The straight-in section extending from the bottom to the top of the inclined section. The toy gun capable of automatically ejecting a magazine according to claim 1, wherein the magazine further comprises a U-shaped magazine channel connected to the magazine opening, the magazine channel is suitable for accommodating spherical projectiles, and the pusher The bomb unit also includes a pivot on the bomb A first rotating member and a second rotating member of the magazine, a third rotating member pivoted between the magazine and the second rotating member, and a third rotating member connected to the first rotating member and the second rotating member The linked elastic element of the third rotating member, the first rotating member has a position-limiting portion and a pressing portion that rotate in the opposite direction, and the second rotating member has a first convex portion abutting against the pressing portion , and a second convex portion opposite to the first convex portion and abutting against the abutting member, the third rotating member has a dial control portion, and the interlocking elastic element is constantly generated to make the first rotating member The elastic force of the limiting portion of the third rotary member rotating in the direction away from the box mouth and the dial control portion of the third rotary member rotating in the direction of the box mouth. The dial control portion of the three rotary members rotates in the opposite direction of the box mouth, and drives the limiting portion of the first rotary member away from the box mouth through the linkage elastic element, and at the same time, the pressing portion pushes the second The first convex portion of the rotating member rotates toward the abutting member, and pushes the abutting member to the latching position through the second convex portion. When the pushing unit is in the empty state, the pushing The stopper pushes the limiting portion of the first rotating member to rotate toward the box mouth, releases the third rotating member, and drives the third rotating member and the second rotating member toward the The box mouth is rotated in the direction, so that the second rotating member releases the abutting member to the release position. A magazine device, mounted on a toy gun, the toy gun comprising a gun body defining a magazine with an upward opening, and a latching unit mounted on the gun body and adjacent to the magazine, the magazine device comprising: a magazine, suitable for accommodating at least one projectile, and comprising a magazine opening suitable for outputting the at least one projectile, the magazine moves relative to the gun body between a magazine-in position and a magazine-extraction position, at the magazine-in position , the magazine goes deep In the magazine, when the magazine is at the retracting position, the magazine partially penetrates the gun body; a bullet-pushing unit is installed in the magazine, and includes a push-pull unit that is suitable for pushing the at least one projectile toward the magazine opening one by one. A bomb pusher, the bomb pusher unit changes between a bomb feeding state and an empty bomb state. In the bomb feeding state, the bomb pusher is far away from the opening of the magazine, and in the empty bomb state, the bomb pusher is adjacent to the magazine a mouth; and a limiting unit, including an abutting member movably installed between the pushing unit and the latching unit, and a cassette ejecting elastic element, the abutting member is in a latching abutment relative to the latching unit It moves between the position and a release position. In the latching position, the abutting member is pushed by the ejecting unit in the feeding state, passes through the magazine and is stuck against the latching unit. In the releasing position, The abutting member is released by the ejecting unit in the empty state, and is disengaged from the latching unit, and the ejecting elastic element abuts between the gun body and the magazine, constantly generating the magazine from the loading position The spring force to move towards this eject position. The magazine device of claim 7, wherein the magazine further comprises a back plate facing the latching unit, an introduction groove formed on the back plate and extending in a height direction, and a back plate formed on the back plate The board and the lead-out slot spaced from the lead-in slot along a width direction. The lead-out slot also extends along the height direction. When the abutting member of the limiting unit moves to the latching position, it is located between the lead-in slot and the lead-out slot. Between the grooves, the latching unit includes a latch for latching against the abutting member. When the magazine moves from the unloading position to the inserting position along the height direction, the latch slides on the introduction slot , when the magazine moves from the box-in position to the box-out position along the height direction, the latch slides on the lead-out slot. The magazine device according to claim 8, wherein the introduction groove has an inclined entry section extending from bottom to top from one end adjacent to the exit groove toward the other end away from the exit groove, and is connected to the inclined entry section and Straight entry section extending from bottom to top. The magazine device according to claim 7, wherein the magazine further comprises a magazine channel connected to the magazine mouth, the magazine channel is suitable for accommodating the spherical projectiles, and the magazine pushing unit further comprises a magazine pivoted on the magazine A first rotating member and a second rotating member of the magazine, a third rotating member pivoted between the magazine and the second rotating member, and a third rotating member connected to the first rotating member and the second rotating member The linked elastic element of the third rotating member, the first rotating member has a position-limiting portion and a pressing portion that rotate in the opposite direction, and the second rotating member has a first convex portion abutting against the pressing portion , and a second convex portion opposite to the first convex portion and abutting against the abutting member, the third rotating member has a dial control portion, and the interlocking elastic element is constantly generated to make the first rotating member The elastic force of the limiting portion of the third rotary member rotating in the direction away from the box mouth and the dial control portion of the third rotary member rotating in the direction of the box mouth. The dial control portion of the three rotary members rotates in the opposite direction of the box mouth, and drives the limiting portion of the first rotary member away from the box mouth through the linkage elastic element, and at the same time, the pressing portion pushes the second The first convex portion of the rotating member rotates toward the abutting member, and pushes the abutting member to the latching position through the second convex portion. When the pushing unit is in the empty state, the pushing The stopper pushes the limiting portion of the first rotating member to rotate toward the box mouth, releases the third rotating member, and drives the third rotating member and the second rotating member toward the The box mouth is rotated in the direction, so that the second rotary member releases the abutment in this release position.

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