JP4866673B2 - Separation device - Google Patents

Description

  The present invention relates to a separation device used in a parachute or the like.

  Conventionally, as this type of separation apparatus, there is one applied to a parachute as described in Patent Document 1.

  In this separation device, the outer rotating arm and the inner rotating arm are rotatably supported on the same axis, and the support structure can be simplified.

  However, simply supporting the outer rotating arm and the inner rotating arm on the same shaft may complicate the shaft retaining structure.

JP 2003-327199 A

  The problem to be solved is that the structure for preventing the shaft from coming off may be complicated.

In order to simplify the structure for preventing the shaft from coming off, the present invention is coupled to the base member by being rotatably supported by the base member and engaged and held by the base member so that the base member can be released at a locked position. A release member that prevents the connection member from being detached, and is rotatably supported by the base member and is engaged and held so as to be able to be released from the base member at an engagement holding position of the release member to protect the release member. In a separation device including a possible protection member, the release member is rotationally supported on the base member by a support shaft, the support shaft is fixed to the base member by a fastener, and the protection member is secured to the fastener. the rotation supporting portion for rotatably supporting the member on the release member coaxially provided, said release member comprises a loop wire for separating withdrawal of the base member in the axial direction of the support shaft The protection member is engaged and held so that it can be released to the inside in the direction, and the protective member is engaged and held so that it can be released to the outside in the width direction of the base member in the axial direction of the support shaft. The member and the loop wire are covered .

The present invention relates to a release member that is rotatably supported by the base member and is engaged and held by the base member so as to be unlocked in a locked position with respect to the base member, thereby preventing disengagement of the coupling member coupled to the base member. And a protection member that is rotatably supported by the base member and is engaged and held so as to be able to be released from the base member at an engagement holding position of the release member, and can protect the release member. The release member is rotatably supported on the base member by a support shaft, the support shaft is fixed to the base member by a fastener, and the protection member can be rotated coaxially with the release member on the fastener. the rotation support portion for supporting provided, wherein the release member releases operably engaged with and held in the axial direction of the support shaft comprises a loop wire for separating withdrawal widthwise inwardly of the base member Is, the protective member, the order in axial direction of the support shaft to the base member is in the width direction outwardly releasing operably engage and hold covers the release member and a loop wire between the base member, the support shaft The fastener that prevents the slipping off and the rotation support portion of the protective member can be shared, and the retaining structure of the support shaft can be simplified.

  The purpose of simplifying the shaft retaining structure was realized by forming a rotation support portion on the fastener.

[Structure of separation device]
1 to 6 relate to a first embodiment of the present invention, FIG. 1 is a schematic view of a state in which a parachute to which a separation device is applied is attached to a person, FIG. 2A is a front view of the periphery of the separation device, 2 (b) is a side view of the periphery of the separation device, FIG. 3 is a perspective view showing a separation state of the lock portion, FIG. 4 is a side view showing the coupling of the lock portion and the tongue member, and FIG. FIG. 6 is a cross-sectional view of the lock portion shown together with the tongue member.

  As shown in FIG. 1, the separation device 1 is used for a parachute 3 and is connected to a riser 5 and a parachute harness 7. The riser 5 is connected to the canopy portion 9 of the parachute 3. The parachute harness 7 is attached and fixed to the parachute wearer M.

  As shown in FIGS. 2 to 5, the separation device 1 includes a lock portion 11 and a tongue member 13 that is a connector.

  The lock portion 11 removably couples the tongue member 13 to transmit a load to and from the tongue member 13 and enables the tongue member 13 to be quickly separated. The lock portion 11 supports a base metal 15 with a lock metal 17 as a release member and a cover metal 19 as a protective member.

  The lock fitting 17 and the cover fitting 19 are supported on the base fitting 15 so as to be rotatable coaxially. In the coupled state of the tongue member 13, the lock fitting 17 is housed between the base fitting 15 and the cover fitting 19, and the cover fitting 19 is engaged and locked to the base fitting 15 at the position shown in FIG. .

  A loop wire 25 for separation operation is attached to the lock fitting 17.

  The parachute harness 7 is wound and coupled to the base metal fitting 15, and the shoulder belt 29 of the parachute harness 7 is directly coupled to the harness main body 31 of the parachute harness 7 in the vicinity of the support bar portion 27, not the base metal fitting 15. ing. The shoulder belt 29 is coupled to the harness body 31 by, for example, sewing. A holding belt 33 is attached to the base metal 15 to support the shoulder belt 29 with respect to the base metal 15 so that the shoulder belt 29 is not separated from the lock portion 11.

  A riser 5 serving as a belt is wound around and coupled to the tongue member 13.

[Coupling structure of lock bracket and cover bracket]
The specific coupling of the lock fitting 17 and the cover fitting 19 is as shown in FIG. FIG. 6A is a cross-sectional view of the lock portion shown together with the tongue member, and FIG. 6B is a cross-sectional view of a main portion showing the locking of the cover metal with respect to the base metal.

  As shown in FIG. 6A, the base metal 15 is provided with a support hole 35. Both ends of the support shaft 37 are fitted and supported in the support hole 35. A fitting hole 39 of the lock fitting 17 is fitted to the support shaft 37, and the lock fitting 17 is rotatably supported on the base fitting 15 by the support shaft 37.

  Screw members 41, which are fasteners, are screwed to both ends of the support shaft 37, and are fastened and fixed to the fastening surfaces 43 and 45 of the base metal 15. The support shaft 37 is secured to the base metal 15 by the screw members 41. It is fixed.

  That is, the screw member 41 is provided with a head 47 having a circular cross section, and the outer diameter of the head 47 is formed larger than the inner diameter of the support hole 35. Accordingly, the head portion 47 of the screw member 41 fastened to the support shaft 37 is fastened to the fastening surfaces 43 and 45 of the base metal 15, and the support shaft 37 is fixed and prevented from coming off.

  However, if one of the screw members 41 is omitted, the diameter of one end of the support shaft 37 is slightly enlarged, and a support shaft with a head is used, the same function can be obtained.

  The fastening operation of the screw member 41 is performed by inserting a tool into a polygonal hole formed in the head 47.

  The head portion 47 of the screw member 41 constitutes a rotation support portion that rotatably supports the cover fitting 19, and the through holes 49 and 51 of the cover fitting 19 are fitted to the head portion 47. The lock fitting 17 and the base fitting 15 are coaxially and rotatably supported.

Therefore, the screw member 41 that prevents the support shaft 37 that rotatably supports the lock fitting 17 and the rotation support portion of the cover fitting 19 can be shared, and the structure for preventing the support shaft 37 from coming off is simplified. Can do. In addition, the lock metal member 17 and the cover metal member 19 can be rotatably supported coaxially, and the support structure can be simplified.
Also in assembling, the assembly of the cover metal fitting 19 can be completed by the process of fastening and fixing the support shaft 37 with the screw member 41, and the assembling work is facilitated.

  In this way, the lock fitting 17 is rotatably supported by the base fitting 15 by the support shaft 21 as described above, and at the storage position (lock position) of FIGS. 4 to 6 with respect to the base fitting 15. Thus, the tongue member 13 that is engaged and held so as to be able to be released and inserted (coupled) into the base metal fitting 15 can be prevented from coming off (prevention of disengagement). The cover metal 19 is rotatably supported by the base metal 15 by the head 47 of the screw member 41 and is engaged and held so as to be able to be released from the base metal 15 at the storage position of the lock metal 17 so as to cover the lock metal 17. Is possible.

[Engagement structure of lock bracket and cover bracket]
Engagement and disengagement of the lock fitting 17 with respect to the base fitting 15 at the storage position is performed by a check ball structure.

  That is, the check fitting 57 is attached to the lock fitting 17 via the coil spring 55 in the check holding hole 53, and the check ball 57 is fitted in the recess 59 of the base fitting 15.

  Therefore, when the loop wire 25 is pulled with the cover fitting 19 opened as shown in FIG. 3, the lock fitting 17 can be rotated with respect to the base fitting 15 and the tongue member 13 can be unlocked.

  The lock fitting 17 is provided with a lock claw 61, and the tongue member 13 is provided with a lock claw 61 and a lock port 63 engaged and locked with the lock claw 61. Engagement locking of the tongue member 13 with respect to the base metal fitting 15 can be performed by engaging the lock claw 61 with the lock port 63.

  The release operation part 23 for engaging and disengaging the cover metal 19 with respect to the base metal 15 is constituted by left and right swinging claws 65 and 67 and return springs 69 and 71 which are urging members.

  The swinging claws 65 and 67 include a push button part 73 and an engaging claw part 75, and the swinging claws 65 and 67 are rotatably supported on the base metal 15 by a shaft 77. The engagement claw portion 75 is engaged with the concave portion 80 of the engagement claw portion 79 as the engagement portion of the base metal fitting 15 as shown by a chain line in FIG. Is releasably locked.

  The return springs 69 and 71 are accommodated in the return holding hole 81 of the base metal 15 and are in elastic contact with the push button portions 73 of the swinging claws 65 and 67.

  Therefore, the engaging claws 75 of the swinging claws 65 and 67 are locked to the locking claws 79 of the base metal 15 as shown in FIG. 6B by the urging force of the return springs 69 and 71. By this locking, the cover metal 19 is held by the base metal 15 at a position covering the lock metal 17 (engagement holding position). The swinging claws 65 and 67 rotate against the urging force of the return springs 69 and 71 around the shaft 77 by the pressing operation of the push button portion 73. By this rotation, the engaging claw portion 75 is detached from the locking claw portion 79, and the cover fitting 19 can be rotated around the head portion 47 of the screw member 41 as shown in FIG.

  The release operation portion 23 guides the swinging claws 65 and 67 against the bias of the return springs 69 and 71 when the cover metal piece 19 rotates with respect to the base metal piece 15 to the engagement holding position. In addition, inclined guide surfaces 82 and 84 are provided as guide portions for automatically performing the locking. The inclined guide surface 82 is provided on the locking claw portion 79, and the inclined guide surface 84 is provided on the engaging claw portion 75. However, the inclined guide surfaces 82 and 84 may be provided on either one.

  When the cover bracket 19 is rotated with respect to the base bracket 15 to the engagement holding position, the inclined guide surfaces 82 and 84 come into contact with each other as shown in FIG. 75 is guided in the direction of the arrow against the urging force of the return springs 69, 71, and finally the engaging claw 79 is automatically engaged with the recess 80 of the locking claw 79 by the urging force of the return springs 69, 71. It is locked to.

[Self-locking structure]
FIG. 7 is a cross-sectional view of an essential part showing an engagement lock between the lock fitting and the tongue member, and FIG. 8 is an enlarged cross-sectional view of the same.

  As shown in FIG. 7, the engagement lock portion 83, which is the engagement portion of the lock port 63, is located between the lock claw 61 of the lock fitting 17 and the support shaft 37 that is the rotation center of the lock fitting 17. The engagement is locked.

  At the time of locking the tongue member 13 as shown in FIG. 7, the engaging portion of the lock claw 61 and the engagement lock portion 83 and the rotation center C of the lock fitting 17 are set so as to overlap with the acting direction of the locking load. Yes. The engagement lock portion 83 is provided with a relief portion 85 when the lock claw 61 is disengaged. In the present embodiment, the escape portion 85 is formed by an inclined surface having a width H = 1 mm and an inclination angle θ = 15 °.

  Engagement between the lock claw 61 and the engagement lock portion 83 is performed within the width B of the engagement lock portion 83, and is actually performed within the width B1 due to the presence of the escape portion 85. When the load is applied, it can be seen that the load acts on the point P due to bending, and the point P that is the load application part and the rotation center of the support shaft 37 that is the rotation center C of the lock fitting 17 are overlapped in the load application direction. The configuration is set to. That is, the load from the riser 5 is set in a linear direction connecting the point P and the rotation center C.

  Accordingly, when a load is applied between the lock claw 61 and the engagement lock portion 83, the load is input from the point P to the rotation center C and is received, so that the lock fitting 17 is moved around the rotation center C by the load. The locked state can be maintained without receiving a rotational moment. When the point P is slightly shifted to the right in FIG. 8 with respect to the rotation center C, the lock claw 61 of the lock fitting 17 can be rotated to lock the engagement lock portion 83 when a load is applied, and so-called self-locking can be performed. .

  When releasing the engagement lock between the lock claw 61 and the engagement lock portion 83, the lock claw 61 is inclined with respect to the engagement lock portion 83 by slightly rotating the lock fitting 17, and the engagement lock portion 83. The direction of the load applied to the lock claw 61 is the anti-self-lock direction, and the lock fitting 17 can be easily rotated and unlocked.

Even when the lock claw 61 is inclined with respect to the engagement lock portion 83 during this lock release operation, the lock claw 61 does not hit the corner of the engagement lock portion 83 by the escape portion 85, and the lock release operation is performed. It can be performed smoothly.
[Separation operation]
In the separation operation, the release operation portion 23 of the cover metal 19 is pressed from both sides in the state of FIG.
The cover metal 19 is opened with the support shaft 37 as the center as shown in FIG. In this state, the lock fitting 17 that locks the tongue member 13 at the position shown in FIG. 2 is exposed. The descender (wearer) pulls the loop wire 25 of the lock fitting 17 and rotates the lock fitting 17 around the support shaft 37 so that the state shown in FIG.

When the lock fitting 17 is rotated, the lock claw 61 of the lock fitting 17 is detached from the lock port 63 of the tongue member 13, and the tongue member 13 is detached from the lock portion 11. By this separation, the riser 5 can be separated from the parachute harness 7.
[Others]
In the said Example, a separation apparatus is applicable also to things other than a parachute.

It is the schematic of the state which mounted | wore the person with the parachute to which the separation apparatus was applied (Example 1). (A) is a front view around the separator, and (b) is a side view around the separator (Example 1). (Example 1) which is a perspective view which shows the isolation | separation state of a lock | rock part. (Example 1) which is a side view of a lock | rock part and a tongue member coupling | bonding. (Example 1) which is a front view of a lock | rock part and a tongue member coupling | bonding. (A) is sectional drawing of the lock | rock part shown with a tongue member, (b) is principal part sectional drawing which shows latching of the cover metal fitting with respect to a base metal fitting (Example 1). (Example 1) which is principal part sectional drawing which shows the engagement lock | rock of a lock metal fitting and a tongue member. (Example 1) which is a principal part expanded sectional view which shows the engagement lock | rock of a lock metal fitting and a tongue member.

Explanation of symbols

1 Separator 3 Parachute 5 Riser (Belt)
7 Parachute harness (belt)
11 Locking part 13 Tongue member (connector)
15 Base bracket (base member)
17 Lock bracket (release member)
19 Cover bracket (protective member)
23 Release operation part 41 Screw member (fastener)
47 Head (Rotating support)
65, 67 Swing claw 69, 71 Return spring (biasing member)
79 Locking claw part (Locking part)
82,84 Inclined guide surface (guide part)
83 Engagement lock part (engagement part)
85 Escape part M Parachute wearer

Claims (7)

A release member that is rotatably supported by the base member and that is engaged and held by the base member so as to be unlocked in a locked position with respect to the base member, and prevents release of the coupling member coupled to the base member;
A separation device including a protective member that is rotatably supported by the base member and is releasably engaged with the base member at an engagement holding position of the release member and can protect the release member;
The release member is rotatably supported on the base member by a support shaft,
Fixing the support shaft to the base member with a fastener;
The fastener is provided with a rotation support portion that rotatably supports the protection member coaxially with the release member ,
The release member is provided with a loop wire for separation and separation, and is engaged and held so as to be able to be released to the inside in the width direction of the base member in the axial direction of the support shaft.
The protective member is engaged and held so as to be able to be released to the outside in the width direction of the base member in the axial direction of the support shaft, and covers the release member and the loop wire between the base member,
Separation device characterized by that. The separation device according to claim 1,
The base member is provided with a support hole for fitting and supporting both end portions of the support shaft,
The fastener is fastened to an end of the support shaft;
The said rotation support part is a head of the said fastener larger diameter than the said support hole. Separation apparatus characterized by the above-mentioned. The separation apparatus according to claim 1 or 2,
A separation device is provided, wherein a release operation portion is provided for locking the protection member so as to be able to be detached and rotated with respect to the base member at a position where the protection member protects the release member. The separation device according to claim 3,
The release operation portion is configured by a swinging claw supported by the protection member so as to be able to be detached and rotated by a pressing operation, and a biasing member that biases the swinging claw in a locking direction. Separation device. The separation device according to any one of claims 1 to 4,
The release member has a locking claw;
The connector has an engagement portion that engages and locks the lock claw between the lock claw and the rotation center of the release member,
The locking portion of the locking claw and the engaging portion and the rotation center of the release member are set so as to overlap with the direction in which the locking load is applied when the coupling tool is prevented from coming off.
Separation device characterized by that. The separation device according to any one of claims 1 to 4,
The release member has a locking claw;
The connector has an engagement portion that engages and locks the lock claw between the lock claw and the rotation center of the release member,
The separation device, wherein the engagement portion is provided with a relief portion when the lock claw engagement is disengaged. The separation device according to claim 4,
The release operation unit guides the swinging claw against urging when the protection member rotates with respect to the base member and reaches the engagement holding position, and automatically performs the locking. A separation apparatus comprising the base member .

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