CN107003102A - Crush-like grenade - Google Patents

Abstract

The invention relates to a resheathable simulated-size grenade for reuse comprising a fixed part (5) coupled to a spring (8) acting on a plate (9) moving between an inner position and an outer position, and an axially movable part (6) passing through the fixed part (5), said axially movable part being pushed upwards by a spring (7) and extending axially in the upper part by means of a rod (13) which is rotatably actuated by a mechanism (14) which engages a control sleeve (15, 27) arranged on the outside, so that the control sleeve is axially and rotationally movable on a central extension (16) of the body of the grenade body, the axially movable part (6) comprising means for retaining the plate (9) in the inner position, said plate being released in accordance with the movement of the axially movable part (6).

Description

imitation fragmentation grenade

technical field

The present invention relates to the production of toys imitating the functional concept of objects in real life, and proposes an imitation shatter grenade that is easy to assemble and has a simple composition, with features that allow efficient imitation of real life grenades that can be rearmed for repeated use Functional mechanics for explosive effects.

Background technique

In the field of toymaking, it is common to develop toys such as weapons that imitate real-life objects, for example, the success of the toy depends on the design similarity to the imitated real-life object and the toy allows real-life Obvious functional effects developed from the objects in it.

The development of various embodiments of imitation grenades with a functional effect that mimics the explosive action of real-life grenades, wherein the actuation is based on gas (CO ₂ ), compressed air or mechanical components, is known in this sense (see e.g. patent literature US3878639, US4944521, US5354225, US5877448, US5996503, US20070249262, US5964639, US20120266853 and US4932329).

Solutions involving gas or compressed air actuation are expensive since they require air or gas that cannot be refilled by the user in order to reuse the grenade, and also require maintenance to replace leak-proof seals.

Mechanical solutions are low maintenance, but existing embodiments are very complex and therefore difficult for the user to retool for repeated use.

There are also embodiments that have a destructive operation when using the grenade, so that the grenade cannot be reused, an embodiment that is therefore very expensive and therefore not a widely accepted solution.

Contents of the invention

The present invention proposes an imitation shatter grenade developed according to one embodiment, having a constructive and functional structure well suited for the entertainment function of the application related to the military simulation game called Airsoft.

This grenade object of the invention consists of a structure formed by a lower and an upper cover, which are attached to each other by means of posts, leaving a central space and a peripheral space between them, relative to which the rotation is arranged Closing the door, the fixed part integrally formed with the column is arranged in the central space, the radially oriented spring acting on the movable plate is attached to the fixed part, the movable plate can be accommodated in the structure and moved out of the structure, while the axial The movable part passes through said fixed part of the central space, the axially movable part is pushed upwards by the lower spring, said axially movable part is extended in the upper part by a rotating rod rotating on it, said rod being connected with the rotating The actuating mechanism is connected and attached at the ends to a control sleeve arranged on the outside on the central extension of the upper cover.

The control sleeve has an inwardly protruding notch inside its peripheral wall, the inwardly protruding notch fits in a longitudinal groove of the central extension of the upper cover, said notch can slide along the groove until the upper cover an annular channel at the base of the central extension; the peripheral wall of the control sleeve also has an outwardly protruding flange for abutting against a blocking element removably arranged in the outer portion exposed from the upper cover between the lugs.

The movable plate on which the radial spring of the fixed part of the central space acts has an engagement element oriented towards the inner part, while the axially movable part has a further engagement element in a position facing said movable plate, the other engagement element Depending on the position of the axially movable part it is easy to interlock with the engaging elements of the movable plate.

On the other hand, the revolving closing door of the peripheral space of the structure has a toothed lip in the revolving area, the edge of the corresponding movable plate engages the lips.

Thereby is obtained a functional assembly formed of parts strategically connected to each other, wherein the movable plate of the profile allows to keep the closing door of the peripheral space in the closed position, while said movable plate of the profile by means of the central The axially movable part is held in an inwardly moved position against its urging spring, and the central axially movable part is held in an engaged position against the urging of the lower spring for said movable movement of the profile by the control sleeve. The mobile plate remains connected to the central extension of the upper cover, while said control sleeve is held blocked by the retaining element against the actuation of the rotary rod transmitted by the rotary actuation mechanism to the central movable part of the extension.

Thus, when the retaining element is removed, the rotary actuation mechanism causes the control sleeve to rotate until the control sleeve reaches an axially displaced position relative to the central extension of the upper cover, thereby allowing the movement of the central movable part due to the push of the lower spring, Thereby releasing the engagement of the movable plate holding the profile, which is then suddenly pushed outwards by its spring, the movement of which moves the closed door of the peripheral space into an open position.

In these cases, if the peripheral space between the movable plate and the closing door is filled with small shrapnel-simulating elements in which the entire grenade assembly is fully closed, then when the grenade is suddenly opened, after turning the control sleeve from the blocking position to the axial The time it takes to move the position, from the moment the retaining element is removed, takes place from the moment the shrapnel simulates the element being pushed out by the movable plate.

It is conceivable that the rotary actuation mechanism of the control sleeve is actuated by a helical spring which is stretched when said control sleeve is brought into the blocking position by means of the outer retaining element, said rotary actuation mechanism being activated by causing the control A fast rotating direct drive of the sleeve is connected to the control sleeve, or by means of a gear transmission that slows down the rotation of the control sleeve, in which case the gear transmission determines the time delay in the opening of the grenade.

The grenade can be rearmed by forcing the elements of the grenade assembly to the closed position when the grenade is open until a block in the closed position is established, capable of being reloaded with shrapnel simulation through the reloading holes provided for this purpose in the grenade's structure element.

The upper engagement element of the axially movable part has a protrusion arranged to receive the detonation primer, while the lower base of the upper cover has a housing in which said protrusion of the engagement element of the axially movable part fits such that the During the axial movement of the moving part, the protruding part collides with the shell of the upper cover, causing the detonation of the detonation primer, thus producing the detonation sound effect imitating the detonation of a grenade.

Thus, a structurally simple and therefore low-cost grenade is obtained, whereby an effective functional effect of the explosive simulation of a real-life grenade without said explosive simulation being destructive to the grenade's structure is obtained, the grenade for repetitive Use is easily rearmable, so the grenade is very acceptable as an object of entertainment.

Based on the above, said imitation fragmentation grenade object of the present invention has a very favorable structure for its intended function, novel and preferred with respect to conventional solutions of the same type of grenade that exist today.

Description of drawings

Figure 1 shows an external view of a first embodiment of a simulated fragmentation grenade according to the invention in a closed position.

Fig. 2 is a vertical sectional perspective view of the imitation crushing grenade as shown in the figure above.

Figure 3 is a perspective view of the grenade with the retaining elements disassembled in the relevant assembly position.

Figure 4 is a perspective view of the grenade in the open position, with the retaining element and the control sleeve disassembled in the relative assembled position.

Figure 5 is a side view of the grenade with the elements making up the previous figures.

Figure 6 is a perspective view in vertical section of the opened grenade with the outer retaining element spaced in relative position relative to its assembled position.

Figure 7 is a perspective view of the opened grenade cut transversely below the upper cover.

Figure 8 is a perspective view of the opened grenade seen from a lower position.

Figure 9 shows an external view of a second embodiment of the simulated fragmentation grenade according to the invention in the closed position.

Figure 10 is a perspective view of the second embodiment of the grenade in the open position, with the retaining element and the control sleeve disassembled in the relative assembled position.

Figure 11 is another perspective view of the second embodiment of the grenade.

FIG. 12 shows a bottom perspective view of the upper cover, the control sleeve and the retaining element of the grenade of the second embodiment of FIG. 9 .

Figure 13 is a side sectional view of the grenade with the elements making up the aforementioned Figures 9 to 12 in the closed and armed position.

Figure 14 is a side sectional view of the grenade with the elements making up the aforementioned Figures 9 to 12 in an open position.

detailed description

The object of the present invention relates to an imitation fragmentation grenade defined in a functional embodiment that allows effective imitation of non-destructive explosive effects and is re-armable for repeated use.

As shown in Figures 1 and 2, the imitation crushing grenade object of the present invention comprises a structure formed by a lower cover (1) and an upper cover (2), which are attached to each other by means of posts (3), Between the column and the covers (1) and (2) there is left a central space and a peripheral space with a revolving closed door (4).

A fixed part (5) attached to a column (3) is arranged in a central space through which an axially movable part (6) is supported to push the axial On the lower spring (7) where the movable part is upward.

As shown in Figure 5, a spring (8) projecting radially into the peripheral space defined between the posts (3) is attached to the fixing part (5), said spring (8) acting on the plate (9), The plates (9) are movable by said springs (8) between a position protruding outwards from the peripheral contour of the structure and a position withdrawn inwards against the corresponding springs (8).

The plate (9) has engaging elements (10) on its inner face, while the axially movable part (6) has other engaging elements (11) in the area facing said plate (9), so that according to said axially movable The position of the moving part (6), the engagement element (11) of the axially movable part can establish an interlock with respect to the engagement element (10) of the plate (9) to hold the plate against the spring (8) of the plate Inwardly retracted position and used to release the interlock so that the plate (9) can be pushed out by the corresponding spring (8).

As shown in Figure 7, the closing door (4) of the peripheral space has a toothed lip (12) in the area of its swivel assembly, so that when the plate (9) is brought against its spring (8) withdrawn inwards position, the panel engages with said lip (12) of the corresponding door (4) with its edge, forcing said door (4) to rotate into the closed position to close the corresponding peripheral space, keeping the peripheral space in the closed position. in position.

As shown in the sectional view of Figure 2, the axially movable part (6) is axially extended in the upper part by a rod (13) rotatable on it, said rod (13) being connected to a rotary actuating mechanism (14 ), while the rod (13) is attached at its end to a control sleeve (15) arranged on the outside on the central extension (16) of the upper cover (2).

The control sleeve (15) has on its peripheral wall an inwardly protruding notch (17) which fits into a longitudinal groove (18) of the central extension (16) of the upper cover (2), see Figure 4 , along the longitudinal groove, the notch (17) can slide until the central extension (16) of the upper cover (2) has an annular channel (19) at the base; so that the control sleeve (15) Can be moved axially by the notch (17) sliding along the groove (18) and rotated when said notch (17) is in the position of sliding along the annular channel (19), when the notch (17) is in When in this annular channel (19), a hold against axial movement is established.

The peripheral wall of the control sleeve (15) also has a flange (20) for abutting against a retaining element (21) arranged between lugs (22) exposed from the upper cover (2), so that when the control sleeve (15) said flange of the wall of the control sleeve (15) ( 20) Arranged near said lugs (22) of the upper cover (2), so that when the holding element (21) is inserted between the lugs (22), the holding element (21) abuts against the flange (20) , blocks the control sleeve (15) in this position, preventing the control sleeve from rotating.

The holding element (21) can be fixed in an inserted position between the lugs (22), wherein the holding element blocks the rotation of the control sleeve (15) by means of a laterally inserted pin (23) such as a safety pin of a hand grenade in real life , and the pin must be extracted to allow removal of the retaining element (21) when the operation of the grenade is to be released.

As shown in Figures 7 and 8, in order to achieve a grenade explosion simulation effect, it has been conceived that the engaging element (11) of the axially movable part (6) has a protrusion (25) on which a gunpowder-containing gun can be arranged. Explosive primers, while the lower base of the upper cover (2) comprises a housing (26) into which said projections (25) of the engagement elements (11) of the axially movable part (6) fit, so that when the projections ( 25) collide with the shell (26) of the loam cake (2), producing the detonation sound effect.

In this case, in order to use the grenade after it has been closed and armed, the first step consists in filling the peripheral space between the plate (9) and the closing door (4) with small shrapnel-like elements (not shown). The pin (23) is then removed from the lug (22) and the grenade is thrown so that when the grenade hits the ground, the retaining element (21) separates, so said retaining element (21) no longer abuts the control sleeve (15) flange (20), and so when the control sleeve (15) reaches the angular position where the notch (17) of the control sleeve coincides with the groove (18) of the central extension (16) of the upper cover (2) , the control sleeve is freely rotatable by actuation of the rotary actuation mechanism (14). Therefore, due to the push of the lower spring (7), said control sleeve (15) moves axially together with the axially movable part (6) and the rod (13), so that when the axially movable part (6) moves, The interlock between the engagement elements (11) of the axially movable part (6) and the engagement elements of the plate (9) is released, the hold of the interlock is released, whereby the plate (9) due to the The push of the spring (8) is driven axially outwards, the door (4) is opened and the shrapnel is thrown like an explosion. Simultaneously, during the axial movement of the movable part (6), the protrusion (25) collides with the shell (26) of the upper cover (2), causing the detonation of the detonation primer and producing a detonation sound effect.

A hole (24) is provided for introducing the shrapnel element into the peripheral space of the grenade, the hole being able to be blocked with a plug or any other closing means after the shrapnel element is introduced therein; said filling hole (24) can be located in the structure of the grenade In any part, for example located in the lower cover (1), allows the user to fill the grenade by himself/herself after re-equipping the grenade for repeated use.

The rotary actuation mechanism (14) is connected with the control sleeve (15) by means of a transmission that rotates said control sleeve (15) rapidly, so that when the retaining element (21) is separated, an explosive opening of the grenade occurs. It is also possible that the rotary actuation mechanism (14) is connected to the control sleeve (15) by means of a transmission that slowly rotates said control sleeve (15), the transmission determining the delay in the rotation of the control sleeve (15), so that in the grenade Explosion opening allows removal of the retaining element (21) before throwing the grenade.

Furthermore, it has been envisaged, for example, that the movable plate (9) has a striking color, such as yellow, that stands out from the color of the environment in which the grenade is used, making it easier to locate the grenade when it has detonated at the site where it is used.

Figures 9 to 14 show a second embodiment of the imitation fragmentation grenade of the present invention. In this second embodiment, the interior of the upper cover (2), the control sleeve (15) and the retaining element (21) has been modified with respect to the first embodiment of Figs. 1 to 8 . The remaining elements of the second embodiment of the grenade are the same as those of the first embodiment and therefore the same reference numerals are used to designate the same elements.

As shown in Figures 10 to 12, the second embodiment of the present invention comprises a control sleeve (27) having radially outwardly projecting protrusions (28) on the outside of the control sleeve, see Figures 10 and 11, the protrusions (28) are easily Fitted in the longitudinal groove (29) of the loam cake (2). The protrusion (28) can slide along the longitudinal groove (29) until the upper cover (2) has defined the annular passage (30) therein, so that the control sleeve (27) can pass through the protrusion (29) sliding along the groove (29) 28) moves axially and rotates when said protrusion (28) is in a position to slide along the annular passage (30) in which the protrusion (28) is located, establishing a prevention control sleeve (27) Axial movement is maintained.

The control sleeve (27) also includes a window portion (31) in which the attachment (32) of the retaining element (21) arranged between the lugs (22) of the upper cover (2) can be assembled so that when the control sleeve (15) When the protrusion (28) of the control sleeve is located in an angular position in the annular channel (30) of the upper cover (2), the window portion (31) of the control sleeve (27) faces the lug (22) of the upper cover (2) ) positioning, so that when the holding element (21) is inserted between the lugs (22), the attachment (32) of the holding element (21) fits in the window portion (31), preventing the control sleeve (27) from being in this position, This prevents the control sleeve from rotating.

In order to simulate the effect of a grenade explosion, instead of using projections (25) colliding with the housing (26) seen in Figures 7 and 8, it has been envisaged that the control sleeves (15, 27) have radial projections (33), An explosive primer consisting of gunpowder can be arranged on the radial protrusion, while the upper cover (2) has an axial protrusion (34) configured to receive the radial protrusion (33), so that when the control sleeve (15, 27) When rotating, the collision between the radial protrusion (33) of the control sleeve (15, 27) and the axial protrusion (34) of the upper cover (2) occurs, and a sound effect is generated due to the detonation of the explosive primer.

The retaining element (21) may also comprise an L-shaped extension (35), which is an extension of the upper end of the retaining element (21) and partially covers the control sleeve (15, 27) in the grenade in its assembled structure. ), so that when the grenade is thrown, this extension (35) creates a larger surface in contact with the ground, facilitating the removal of the retaining element (21), so that detonation of the grenade can occur. Furthermore, with this configuration, the retaining element (21) is not completely detached from the structural body of the grenade, thus preventing the retaining element (21) from being lost in the field after throwing the grenade.

In this case, see FIG. 13 , in order to use the grenade of the second embodiment after it has been closed and armed, the first step consists in filling the plate ( 9 ) and closing door ( 4) Peripheral space between. The pin (23) is then removed from the lug (22), and the grenade is thrown so that when the extension (35) of the holding element (21) hits the ground, the holding element (21) moves laterally, the The accessory (32) thus no longer fits in the window portion (31) of the control sleeve (27).

Therefore, the control sleeve (27) is free to rotate by the actuation of the actuating mechanism (14), so the protrusion (28) of the control sleeve (27) slides along the annular channel (30) of the upper cover (2) until reaching the control The angle position where the protrusion (28) of the cover matches the groove (29) of the loam cake (2).

Referring to Figure 14, at this time, due to the push of the lower spring (7), the control sleeve (27) moves axially together with the axially movable part (6) and the rod (13), so that when the axially movable part (6) When moving, the interlock between the engaging elements (11) of the axially movable part (6) and the engaging elements of the plate (9) is released, the holding of the interlock is released, so that the plate (9) due to the The push of the spring (8) is driven radially outward, opening the door (4) and ejecting the shrapnel-like element, like an explosion.

Before the control sleeve (27) starts its axial movement, the radial protrusion (33) of the control sleeve (27) collides with the axial protrusion (34) of the upper cover (2), causing the detonation of the explosive primer, and producing Detonation sound effect.

Claims (13)

1. An imitation fragmentation grenade, formed by elements connected to each other to determine the explosive functional characteristics that can be re-equipped for repeated use, characterized in that the imitation fragmentation grenade includes a structure, and the structure internally determines the central space and the peripheral space , the peripheral space has a revolving closed door (4), while a fixed part (5) is arranged in the central space, a radially oriented spring (8) is attached to the fixed part, the spring acts on a plate (9) located in the peripheral space , the plate has the possibility to move between an inner position and an outer position relative to the inner position; the axially movable part (6) passing through the fixed part (5), said axially movable part (6) being spring loaded (7) Pushed upwards and axially extended in the upper part by a rotating rod (13) rotating on the axially movable part, the rotating rod is connected with the rotating actuating mechanism (14) and attached to the arrangement at the end of the rotating rod Control sleeves (15, 27) on the outside, enabling the control sleeves to move axially and rotationally on the central extension (16) of the structure; the axially movable part (6) is provided with retaining means for The plate (9) is held in an internal position of the peripheral space to be released upon movement of said axially displaceable part (6). 2. The imitation crushing grenade according to claim 1, characterized in that, the control sleeve (15) has an inwardly protruding notch (17) in its peripheral wall, and the inwardly protruding notch is assembled on the structure body. In the longitudinal groove (18) of the central extension (16), the axial movement of the control sleeve (15) is allowed; A channel (19) communicates along which the notch (17) is slidable, allowing said control sleeve (15) to rotate in its axial movement position. 3. The imitation fragmentation hand grenade according to claim 2, characterized in that the peripheral wall of the control sleeve (15) has a flange (20) for abutting against the removable retaining element (21), which can be moved Except the retaining element prevents said control sleeve (15) from rotating at an angular position of the control sleeve, wherein the notch (17) of the control sleeve is accommodated in the annular channel (19) of the central extension (16) of the structure. 4. Imitation fragmentation hand grenade according to claim 3, characterized in that holding elements (21) are arranged between lugs (22), in which holding elements (21) are fixed by means of transverse pins (23) , the transverse pin can be extracted to allow removal of said retaining element (21). 5. The imitation fragmentation hand grenade according to claim 1, characterized in that the closing door (4) of the peripheral space has a toothed lip (12) in the region of its rotating assembly, the toothed lip with its edge and A corresponding plate (9) engages which forces said door (4) into a closed position when the plate is located in the peripheral space. 6. Imitation fragmentation grenade according to claim 1, characterized in that the plate (9) has engaging elements (10) on its inner face, and the axially movable part (6) is facing said plate (9) There are further engagement elements (11) in the area of the , making it possible to establish an interlock between the engagement elements (10) and the engagement elements (11) for holding the plate (9) in the peripheral space. 7. The imitation shatter grenade according to claim 1, characterized in that the structure comprises a lower cover (1) and an upper cover (2) attached to each other by means of a post (3), the interior of the structure A central space and a peripheral space are defined between said column (3) and said covers (1) and (2). 8. Imitation fragmentation grenade according to claim 7, characterized in that the engagement element (11) of the axially movable part (6) comprises a protrusion (25) on which an explosive primer is arranged, The detonation primer is liable to collide with the housing (26) defined in the lower base of the upper cover (2) to produce a pseudo-detonation effect. 9. Imitation crushing hand grenade according to claim 1, is characterized in that, structural body has hole (24), and hole is used for shrapnel element to be introduced in the peripheral space of inside by hole, and described hole (24) can Obstructed with a stopper or any other closure device. 10. The imitation crushing hand grenade according to claim 7, characterized in that the control sleeve (27) has radially outwardly protruding protrusions (28), and the radially outwardly protruding protrusions are assembled on the upper cover (2) In the longitudinal groove (29), the axial movement of the control sleeve (27) is allowed, and the longitudinal groove (29) communicates with the annular channel (30) in which the upper cover (2) has been defined, and the protrusion (28 ) is slidable along the annular channel, allowing the rotation of the control sleeve (27) in its axial movement position. 11. The imitation fragmentation hand grenade according to the preceding claim, characterized in that the control sleeve (27) has a window (31) into which the attachment (32) of the retaining element (21) can be fitted in order to control An angular position of the sleeve (27) prevents the rotation of the control sleeve (27), wherein the protrusion (28) of the control sleeve is accommodated in the annular channel (30) of the upper cover (2). 12. The imitation crushing hand grenade according to claim 7, characterized in that, the control sleeve (15, 27) has a radial protrusion (33), on which an explosive primer can be placed, and the explosive primer is structured as Collide with the axial protrusion (34) of the control sleeve (15, 27), and produce an imitation detonation effect. 13. Imitation fragmentation grenade according to claim 3 or 11, characterized in that the retaining element (21) comprises an L-shaped extension (35) partially covering the control sleeve (15, 27).