JP2011000317A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector which can certainly be separated by an operation with a single hand, has a biasing member with improved durability and connection of a body and an insertion/removing body is made easier.SOLUTION: The invention is provided with: a body 2 which swings/supports a pair of engaging parts 7, 7 which keep engaging pawls 8, 8 counter to each other within a storage part 5 and has operation parts 9, 9 extending out of the storage part 5, and enables the engaging pawls 8, 8 to be separated from each other by the operation parts 9, 9; an insertion/removing body 21 which has an engaging piece 22 inserted between the engaging pawls 8, 8 and engaged with them and connects to the body 2; a torsion coil spring 11 which energizes the inner side parts 10, 10 to the outside of the storage part 5; and a torsion coil spring 12 which has a part 12a which touches the engaging piece 22 of the insertion/removing body 21 which is inserted between the engaging pawls 8, 8, energizes the engaging piece 22 in the engaged condition toward outside of the storage part 5 and moves so that the coil part 12a touching the engaging piece 22 may extrude the engaging piece 22 to the outside of the storage part 5 if the engaging piece 22 is separated.

Description

  The present invention relates to a connector for connecting and separating a chin strap of a helmet.

  FIG. 4 is a plan view showing a conventional connector. As shown in FIG. 4A, the conventional connector 100 includes a main body 101 and an insertion / removal body 108. The main body 101 has a pair of engaging portions 104 and 104 supported between the upper and lower plates 102 so as to be swingable about the respective support shafts 103 and 103. Further, the engaging portion 104 has an operation projection 104a that protrudes from the side of the upper and lower plates 102 at one swing end, and has a hook-shaped locking claw 104b at the other swing end. The pair of engaging portions 104, 104 oppose the engaging claws 104b, 104b. Further, a spring member 105 is provided between one swinging end of each of the pair of engaging portions 104 and 104. Each one of the swinging ends is always urged by the spring member 105 so as to be separated from each other. As a result, the engaging claws 104b and 104b at the other swing end are biased so as to be close to each other. In addition, a range in which one swinging end of each of the pair of engaging portions 104 and 104 is separated by the respective regulating members 106 and 106 provided between the upper and lower plates 102 is regulated. Further, an annular insertion portion 107 to which a string or the like is attached is provided on one swinging end side of the engaging portion 104 in the upper and lower plates 102.

  The insertion / removal body 108 has an engagement piece 109 that is inserted between the engagement claws 104b and 104b of the pair of engagement portions 104 and 104 and engages with the engagement claws 104b and 104b. . Further, an annular insertion portion 110 to which a string or the like is attached is provided on the opposite side of the engagement piece 109 of the insertion / removal body 108.

  As shown in FIG. 4 (a), the conventional connector 100 includes a pair of engaging portions 104, 104 facing each other between the upper and lower plates 102 of the main body 101. By inserting between the engaging claws 104b and 104b, the spring members 105 engage with the engaging claws 104b and 104b that are close to each other. Thereby, the main body 101 and the insertion / removal body 108 are connected substantially integrally, and the strings attached to the insertion portions 107 and 110 are connected.

  Further, as shown in FIG. 4B, by pressing the operation protrusions 104 a and 104 a of the pair of engagement portions 104 and 104 inward, the engagement claws 104 b and 104 b are applied to the urging force of the spring member 105. Separate against. As a result, the engagement claws 104b and 104b and the engagement piece 109 are disengaged, and the insertion / removal body 108 is free with respect to the main body 101. Then, the strings are separated by pulling out the insertion / removal body 108 from the main body 101 while the operation protrusions 104a, 104a are pushed inward.

  However, in the conventional connector 100 described above, when the engagement claws 104b and 104b are disengaged from the engagement piece 109 as shown in FIG. Although it is free, there is a disadvantage that it cannot be separated unless the insertion / removal body 108 is pulled out from the main body 101, and the user feels bothered by this.

  There exists a coupling tool currently disclosed by the following patent document 1 as what eliminates such a troublesomeness. As shown in FIG. 5A, the connector 200 is composed of a main body 201 and an insertion / removal body 206, similar to the above-described conventional connector 100 (see FIG. 4). A spring member 203 is provided in the housing portion 202. Here, the spring member 203 has annular portions 203c and 203c at the tips of both arm portions 203b and 203b extending to both sides thereof via the first twisted portion 203a, and both arm portions 203b and 203b. The second torsion part 203d, 203d is provided in the middle part, and the engaging claws 204, 204 are brought close to each other by the wide-angle urging force of both arms 203b, 203b by the first torsion part 203a. It is energized to do. Further, the housing portion 202 of the main body 201 has a protrusion 205b at the center of the flat surface 205a, and extends from the second twisted portions 203d and 203d of the both arm portions 203b and 203b of the spring member 203. A support portion 205 is provided on which the annular portions 203c, 203c at the leading ends come into contact with each other so as to sandwich the protrusion 205b.

  And as shown in FIG.5 (b), according to the coupling tool 200, it is inserted / removed body 206 from each engagement nail | claw 204,204 spaced apart by the pushing operation which resisted the wide-angle urging | biasing force of both arm part 203b, 203b. When the engagement piece 207 is disengaged, the second torsion parts 203d and 203d are pressed inward in the opposite direction while the annular parts 203c and 203c at the tip of the spring member 203 are supported by the support part 205. The engaging piece 207 is pushed out of the accommodating portion 202 by the moved first twisted portion 203a. Thereby, the main body 201 and the insertion / removal body 206 are separated by one operation, and the user does not feel bothered.

Japanese Patent No. 3817150

  However, in the connector 200 disclosed in Patent Document 1, since the spring member 203 is formed of a single wire, the entire length is long and the spring member 203 is always stressed. There was a problem with its durability, such as being easy to break.

  Further, in the connector 200, the main body 201 has a flat shape, and in addition, an insertion port 208 for inserting the engagement piece 207 of the insertion / removal body 206 into the storage portion 202 of the main body 201 is provided on a flat side surface. Therefore, it is not easy to align the engagement piece 207 and the insertion opening 208, and when the connector 200 is used for a chin strap of a helmet or the like, the state of the connector 200 from the user Therefore, the user has to connect the main body 201 and the insertion / removal body 206 by groping, which is very complicated.

  Therefore, in order to solve the above-described problems, the present invention enables separation with a single operation with one hand, improves durability of the biasing member, and facilitates connection between the main body and the insertion / removal body. It aims to provide a connecting tool.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The coupling tool according to claim 1 of the present invention is a pair in which the engaging claws 8, 8 formed at the distal end in the housing portion 5 face each other and the outer portions 9, 9 extend outside the housing portion 5. The engaging portions 7 and 7 are rocked and supported so that the engaging claws 8 and 8 can be brought into contact with and separated from each other, and the outer portions 9 and 9 are pushed inwardly of the accommodating portion 5 to perform the above operation. A body 2 that allows the engagement claws 8, 8 to be spaced apart from each other;
There is an engagement piece 22 that is inserted between the engagement claws 8 and 8 of the pair of engagement portions 7 and 7 through the insertion port 16 to the housing portion 5 and engages with the engagement claws 8 and 8. The engaging piece 22 is engaged with the engaging claws 8 and 8 so as to be connected to the main body 2 substantially integrally;
It has both arm parts 11b and 11b which contact each inner part 10 and 10 of a pair of above-mentioned engaging parts 7 and 7 in the above-mentioned storage part 5, and the above-mentioned inside part via both these arm parts 11b and 11b A first urging member 11 that urges 10 and 10 toward the outside of the housing portion 5;
A portion 12a that abuts on the engagement piece 22 of the insertion / removal body 21 inserted between the engagement claws 8 and 8 of the pair of engagement portions 7 and 7 in the accommodating portion 5; The engaging piece 22 that is engaged with the engaging claws 8 and 8 is urged toward the outside of the housing portion 5 and the outer portions 9 and 9 of the pair of engaging portions 7 and 7 are urged. When the engaging claws 8 and 8 are separated from each other by the pushing operation, the engaging piece 22 moves so that the portion 12a that abuts the engaging piece 22 is pushed out of the accommodating portion 5. A second biasing member 12;
It is characterized by having.

  In the connector according to claim 2, the main body 2 has a flat shape, and the lower plate 4 out of the upper and lower plates 3, 4 forming the housing portion 5 of the main body 2 at the insertion port 16 is higher than the upper plate 3. Is also formed to extend in the insertion / removal direction X of the insertion / removal body 21.

  According to a third aspect of the present invention, the first and second urging members 11 and 12 are both torsion coil springs, and the engagement of the insertion / removal body 21 in the second urging member 12 is performed. The portion 12a that abuts on the piece 22 is a coil portion of a torsion coil spring.

The coupling tool according to claim 4, wherein the torsion coil spring 11 as the first urging member is provided between the inner portions 10, 10 of the pair of engaging portions 7, 7. 11b, 11b is provided with a coil portion 11a extending through a predetermined angle and extending through a support shaft 6b.
The torsion coil spring 12 as the second urging member is a coil portion that is a portion that contacts the engagement piece 22 between the inner portions 10 and 10 of the pair of engagement portions 7 and 7. It is characterized in that both arms 12b, 12b extending substantially horizontally from 12a are provided in contact with the support shafts 6c, 6c, respectively.

  According to the connection tool of the present invention, the connected main body and the insertion / removal body can be reliably separated by one operation with one hand. Further, a biasing member that biases the engaging claws of the pair of engaging portions to approach each other, and a biasing member that biases to push out the engagement pieces that are disengaged from the engaging claws. Since the two urging members are separately provided, only the stress associated with each action is applied to the two urging members. That is, the stress is dispersed as compared with the case where the stress is always applied as in the conventional biasing member made of a single wire, and the biasing member is less likely to break and the durability is improved. Furthermore, the strength is increased by shortening the overall length of the two urging members, thereby improving the durability.

  Moreover, since the main body has a flat shape, it becomes a thin connector suitable for use in a chin strap of a helmet. Furthermore, the lower plate of the upper and lower plates forming the housing portion at the insertion opening of the main body extends in the insertion / removal direction, so that the engagement piece of the insertion / removal body can be guided. Can be easily connected.

  Further, by adopting torsion coil springs for the two urging members, it can be suitably incorporated into a flat (thin) main body.

It is a disassembled perspective view which shows the coupling tool by this invention. It is a perspective view which shows the coupling tool by this invention. (A), (b) It is a top view which shows operation | movement of each part in the coupling tool by this invention. (A), (b) It is a top view which shows operation | movement of each part in the conventional connector. (A), (b) It is a top view which shows operation | movement of each part in the conventional connector.

Embodiments of the present invention will be specifically described below with reference to the drawings.
As shown in FIGS. 1 and 2, this embodiment (connector 1) includes a main body 2 and an insertion / removal body 21.

  The main body 2 has a flat shape, and forms a space serving as the accommodating portion 5 between the upper and lower plates 3 and 4. In the accommodating part 5, it has a pair of engaging parts 7 and 7 supported so that rocking was possible centering on the spindle 6a. In this embodiment, the support shaft 6a is composed of one of fixing members 6 such as rivets for integrating the upper and lower plates 3 and 4, and is inserted into the fixing holes 3a and 4a of the upper and lower plates 3 and 4. In addition, the shaft portion 7a of the engaging portion 7 is inserted with play. As for the engaging part 7, the hook-shaped engaging claw 8 is formed in the front-end | tip part of one rocking | fluctuation end via the spindle 6a. The engaging claws 8, 8 of the pair of engaging portions 7, 7 face each other. Further, the outer portion 9 on the other swing end side via the support shaft 6a of the engaging portion 7 extends out of the accommodating portion 5, and the extended outer portion 9 serves as an operation portion. Further, the inner part 10 located on the side opposite to the outer part (operation part) 9 faces the inner part 10 of the other engaging part 7 in the housing part 5.

  In the accommodating part 5, the 1st biasing member 11 is provided between the inner parts 10 and 10 which a pair of engaging parts 7 and 7 oppose. The first urging member 11 is formed of a torsion coil spring, and the coil portion 11a is inserted into the support shaft 6b (fixing member 6) and extends from the coil portion 11a in a substantially V shape with a predetermined angle. Both arm portions 11b, 11b are in contact with the inner portions 10, 10 of the pair of engaging portions 7, 7. The torsion coil spring 11 constantly urges the inner portions 10 and 10 toward the outside of the housing portion 5 via both arm portions 11b and 11b. That is, the torsion coil spring 11 is biased so as to separate the inner portions 10 and 10, whereby the engaging claws 8 and 8 of the pair of engaging portions 7 and 7 are close to each other. Will be energized.

  In the accommodating part 5, the 2nd biasing member 12 is provided between the inner parts 10 and 10 which a pair of engaging parts 7 and 7 oppose. The second urging member 12 is formed of a torsion coil spring in the same manner as the first urging member 11 described above. The torsion coil spring 12 as the second urging member abuts both arm portions 12b and 12b extending substantially horizontally from the coil portion 12a to the support shafts 6c and 6c (fixing member 6). .

  The side surfaces of the upper and lower plates 3 and 4 are in contact with a contact portion 13 formed on the other swing end side of the engagement portion 7 that is pushed and spread by the torsion coil spring 11, and the swing thereof. A regulating member 14 that regulates the moving range is provided.

  Further, an annular insertion portion 15 to which one of the cords A is attached as shown in FIG. 2 is fixed to the upper and lower plates 3 and 4 on the other swing end side of the engaging portion 7. Half of the insertion portion 15 is located in the accommodating portion 5, and the two support shafts 6 d and 6 d (fixing member 6) are inserted into the fixing holes 3 a and 4 a of the upper and lower plates 3 and 4. It is fixed by being inserted through the fixing hole 15a.

  Furthermore, the upper and lower plates 3 and 4 accommodate an engagement piece 22 of an insertion / removal body 21 to be described later on one swinging end side of the engagement portion 7, that is, on the end surface opposite to the insertion portion 15 described above. An insertion port 16 (see FIG. 2) for insertion into the portion 5 is provided. In the insertion port 16, the lower plate 4 of the upper and lower plates 3, 4 is formed to extend in the insertion / removal direction X of the insertion / removal body 21, and this extended portion is formed between the main body 2 and the insertion / removal body 21. As a guide portion 17 for guiding the engagement piece 22 of the insertion / removal body 21 to the insertion port 16 when connecting the two.

  The insertion / removal body 21 has an engagement piece 22 at one end thereof. The engaging piece 22 is inserted into the accommodating portion 5 of the main body 2 described above, and both side portions are hooked so as to be engaged between the engaging claws 8 and 8 of the pair of engaging portions 7 and 7. It is formed in a protruding substantially arrow shape. Further, the distal end portion 23 of the engagement piece 22 is in contact with the coil portion 12a of the torsion coil spring 12, and is formed in a curved concave surface shape that fits the outer shape of the coil portion 12a when contacted. .

  Further, an annular insertion portion 24 to which the other of the cords A is attached is provided at the other end of the insertion / removal body 21 as shown in FIG. Furthermore, a locking member 25 is attached to the insertion portion 24 so that the length of the string A can be adjusted by wrapping the end of the cord A.

  From here, operation | movement of each part in the connector 1 mentioned above with reference to FIG. 3 is demonstrated. In FIG. 3, the upper plate 3 is removed.

  First, the main body 2 and the insertion / removal body 21 are connected. As shown in FIG. 3A, when the engagement piece 22 of the insertion / removal body 21 is inserted into the accommodating portion 5 from the insertion port 16 (see FIG. 2) of the main body 2, the engagement claws that the engagement piece 22 faces are provided. 8 and 8 are inserted between the engaging claws 8 and 8 so as to spread out, and the engaging piece 22 and the engaging claws 8 and 8 are engaged with each other. Since the respective engaging claws 8 and 8 are biased so as to be close to each other by the torsion coil spring 11 as the first biasing member, the engagement pieces 22 and the respective engaging claws 8 and 8 are Engagement never happens. Thereby, the main body 2 and the insertion / removal body 21 are connected substantially integrally, and one and the other of the strings A (see FIG. 2) are connected. At this time, the engaging piece 22 inserted into the accommodating portion 5 has its distal end portion 23 in contact with the coil portion 12a of the torsion coil spring 12 as the second urging member, and further presses the coil portion 12a. Therefore, it is urged toward the outside of the housing part 5.

  The torsion coil spring 11 abuts both arm portions 11b and 11b against the inner side surfaces 10 and 10 of the engaging claws 8 and 8 and pushes it outward toward the housing portion 5. Thus, the respective engaging claws 8 and 8 are biased so as to be close to each other via the respective support shafts 6a and 6a. The torsion coil spring 12 has both arm portions 12b and 12b fixed by the respective support shafts 6c and 6c. Therefore, when the coil portion 12a is pushed by the distal end portion 23 of the engagement piece 22, the engagement is performed. The piece 8 is urged toward the outside of the housing portion 5.

  Next, the connected main body 2 and the insertion / removal body 21 are separated. As shown in FIG. 3B, when the outer portions (operation portions) 9 and 9 of the pair of engaging portions 7 and 7 are pushed toward the inside of the housing portion 5, the torsion coil spring 11 is operated. The respective engaging claws 8 and 8 are separated from each other against the urging force, and the engagement between the respective engaging claws 8 and 8 and the engaging piece 22 is released. At the same time, the coil portion 12a of the torsion coil spring 12 that has been pushed by the distal end portion 23 of the engagement piece 22 up to this point is caused by the biasing force of the torsion coil spring 12 to It moves so as to push out the engagement piece 22 that has been disengaged. As a result, the engagement piece 22 is pushed out of the housing portion 5 and the insertion / removal body 21 is detached from the main body 2.

  According to the above-described embodiment, when the operation parts 9 and 9 are pushed, the engagement claws 8 and 8 are disengaged from the engagement pieces 22 so that the engagement pieces 22 are outside the housing part 5. Therefore, the connected main body 2 and the insertion / removal body 21 can be reliably separated by one operation with one hand. Further, the biasing member (torsion coil spring 11) that biases the engaging claws 8 and 8 of the pair of engaging portions 7 and 7 to approach each other and the engaging claws 8 and 8 are engaged. Since the urging member (torsion coil spring 12) that urges the engagement piece 22 to be released is separately provided, the two torsion coil springs 11 and 12 have their respective functions. Only the accompanying stress is applied. Thereby, the torsion coil springs 11 and 12 are not easily broken, and the durability thereof is improved. Furthermore, the strength of the torsion coil springs 11 and 12 is increased and the durability thereof is improved.

  Further, by adopting the torsion coil springs 11 and 12 as the biasing member, it can be suitably incorporated into the flat main body 2.

  Furthermore, since the main body 2 has a flat shape, the thin connector 1 is suitable for use in a chin strap of a helmet. In addition, since the guide portion 17 of the lower plate 4 extending in the insertion / removal direction X guides the engagement piece 22 of the insertion / removal body 21 at the insertion port 16 of the main body 2, Can be easily connected.

  In the embodiment described above, the state in which the main body 2 is stripped is described. However, the main body 2 may be provided with a cover made of, for example, a synthetic resin so as to cover the periphery thereof. Thereby, even if it uses this connector 1 in the place which touches a user's skin like a chin strap of a helmet etc., it can be used comfortably.

DESCRIPTION OF SYMBOLS 1 ... Connector 2 ... Main body 3 ... Upper board 4 ... Lower board 5 ... Accommodating part 6b, 6c ... Shaft 7 ... Engagement part 8 ... Engagement claw 9 ... Outer part used as operation part 10 ... Inner part 11 ... First Torsion coil spring 11a as a biasing member 11a ... Coil portion 11b ... Both arm portions 12 ... Torsion coil spring 12a as a second biasing member 12a ... Coil portion 12b which becomes a part in contact with the engagement piece ... both arms 16 ... insertion port 21 ... insertion / removal body 22 ... engagement piece X ... insertion / removal direction

Claims (4)

A pair of engaging portions whose outer claws are opposed to each other and whose outer claws extend outside the accommodating portion are swingably supported so that the engaging claws can come into contact with and separate from each other. A body that enables the engaging claws to be separated from each other by pushing the outer portion inward of the housing portion;
There is an engagement piece that is inserted between the engagement claws of the pair of engagement portions from the insertion opening to the housing portion and engages with the engagement claws, and the engagement piece is An insertion / removal body connected substantially integrally to the main body by engaging;
The arm portion has both arm portions that contact the inner portions of the pair of engaging portions in the housing portion, and the inner portion is biased toward the outside of the housing portion via the both arm portions. One biasing member;
A portion that contacts the engagement piece of the insertion / removal member inserted between the engagement claws of the pair of engagement portions in the housing portion, and is in an engagement state with the engagement claws; The engaging pieces are urged toward the outside of the housing portion, and the engaging pieces are separated by separating the engaging claws from each other by the pushing operation of the outer portions of the pair of engaging portions. And a second urging member that moves so that the abutting portion of the engaging piece is pushed out of the accommodating portion,
A connector characterized by comprising:   The main body has a flat shape, and the lower plate of the upper and lower plates forming the housing portion of the main body at the insertion opening is formed to extend in the insertion / removal direction of the insertion / removal body from the upper plate. The connector according to claim 1, wherein   The first and second urging members are both torsion coil springs, and the portion of the second urging member that contacts the engagement piece of the insertion / removal member is the coil portion of the torsion coil spring. The coupling tool according to claim 2, wherein: The torsion coil spring as the first urging member has a coil portion in which the both arm portions extend at a predetermined angle between the inner portions of the pair of engaging portions. Inserted into
The torsion coil spring as the second urging member extends substantially horizontally from the coil portion which is a portion in contact with the engagement piece between the inner portions of the pair of engagement portions. The coupling tool according to claim 3, wherein both the arm portions are provided in a state where each arm portion is in contact with the support shaft.

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