JP2005230461A - Clasp for accessory - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clasp for an accessory capable of dissolving or suppressing the projection of an operation part from a main body part. <P>SOLUTION: The clasp 100 for the accessory is provided with a main body part 10, an insertion member 20 to be inserted into the main body part 10, an engaging part engaged with the insertion member 20 to prevent its detachment from the inside of the main body part 10, and an operation part for releasing the engaged state. By providing first and second operation parts 32 and 42 and performing a pressurizing operation in the direction of making the first and second operation parts 32 and 42 be closer to each other all together to the first and second operation parts 32 and 42, a releasing operation is performed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a fastener for jewelry.

  Conventionally, for example, as a fastener for a necklace, a bracelet, a pendant or other accessories, for example, there is one disclosed in Patent Document 1.

  That is, the fastener for jewelry of Patent Document 1 is described using reference numerals in the document, and a main body (base body) 2 having a connecting ring 4 and an insertion member (insertion pin) inserted into the main body 2. 5 and an engaging portion (engaging protrusion) 3d that engages with the insertion member 5 inserted into the main body 2 to prevent the insertion member 5 from being detached from the main body 2. And an operating portion 3 for performing a releasing operation for releasing the engaged state between the engaging portion 3d and the insertion member 5.

  In such a fastener for jewelry as disclosed in Patent Document 1, the operating portion 3 and the engaging portion 3d are integrally formed, and this integrally formed member is in a hole (vertical insertion hole) 8 formed in the main body 2. After the spring 6 is inserted into the hole 8, and the caulking process is performed on the opening end of the hole 8, the integrally formed member and the spring 6 are prevented from falling out of the hole 8.

  In this state, the operation portion 3 protrudes from the main body portion 2, and it is possible to perform a pressing operation against the biasing force of the spring 6 in the direction in which the protruding operation portion 3 is pushed into the main body portion 3. Yes.

  Furthermore, a hole (lateral insertion hole) 9 orthogonal to the hole 8 is formed in the main body 2 so as to intersect the hole 8 in the main body 2.

  Further, the insertion member 5 is configured in a pin shape, and grooves 5c and 5d with which the engaging portion 3d is engaged are formed in the vicinity of the tip thereof.

  By inserting such an insertion member 5 into the hole 9, the engaging portion 3d engages with the groove 5c or 5d of the insertion member 5 at the intersection of the hole 9 and the hole 8, Since the engaged state is maintained by the urging of the spring 6, the insertion member 5 is prevented from being detached from the main body 5.

  Further, by pressing the operation portion 3, the engagement of the engagement portion 3 d with the insertion member 5 is released, and the insertion member 5 can be pulled out from the main body portion 5.

Further, in other conventional technologies as well, it is common that the engagement portion and the insertion member are released from the engagement state by pressing the operation portion, and the insertion member can be pulled out from the main body portion. It is.
JP-A-8-89320 (FIG. 8)

  However, all of the above-mentioned Patent Literature 1 and other conventional accessory fasteners perform an operation of releasing the engagement state between the engagement portion and the insertion member by pressing the operation portion. There is a problem that the part protrudes greatly from the main body part and the appearance is poor.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fastener for jewelry that can eliminate or suppress the protrusion of the operation unit from the main body.

  In order to solve the above-described problems, a fastener for jewelry according to the present invention includes a main body portion, an insertion member inserted into the main body portion, and an insertion member inserted into the main body portion, thereby engaging the insertion member. In a fastener for jewelry, comprising: an engaging portion that keeps a member from being detached from the inside of a main body portion; and an operation portion for releasing the engaging state between the engaging portion and the insertion member. And the second operation unit, and the release operation is performed by pressing the first and second operation units in a direction to bring the first and second operation units closer to each other at once. It is characterized by being made.

  In the fastener for jewelry according to the present invention, it is preferable that a groove to be engaged with which the engaging portion is engaged is formed in the insertion member.

  In the fastener for jewelry according to the present invention, it is preferable that the engagement groove is formed at a plurality of locations in the insertion direction into the main body portion in the insertion member.

  In the fastener for jewelry according to the present invention, the first and second engaging portions are provided, and the first engaging portion is engaged with the insertion member by operating the first operating portion. On the other hand, it is preferable that the second engagement portion is disengaged from the insertion member by operating the second operation portion.

  In the fastener for jewelry according to the present invention, it is preferable that the first and second engaging portions engage with the insertion member so as to sandwich the insertion member in cooperation.

  In the fastener for jewelry according to the present invention, the first engagement member and the first operation portion are integrally provided, the first movable member movable with respect to the main body portion, and the first It is preferable to include a second movable member that integrally includes two engaging portions and the second operation portion and is movable with respect to the main body portion.

  In the fastener for jewelry according to the present invention, it is preferable to further include a drop-off preventing member that prevents the first and second movable members from dropping from the main body.

  In the fastener for jewelry according to the present invention, it is preferable that the drop-off prevention member prevents the first and second movable members from dropping from the main body portion in a state of being disposed inside the main body portion.

  In the fastener for jewelry according to the present invention, the drop-off prevention member includes the first and second movable members in a direction intersecting the insertion direction in a state where the first and second movable members are inserted into the main body. It is preferable that both the end portions of the drop-off prevention member pass through the movable member, and the drop-off prevention member and the first and second movable members are prevented from dropping off from the main body portion by receiving a drag force from the main body portion.

  In the fastener for jewelry according to the present invention, it is preferable that the drop-off preventing member is a pin.

  In the fastener for jewelry according to the present invention, the first and second movable members are provided with a movable member that urges the first and second movable members in a direction in which the first and second engaging portions engage with the insertion member, respectively. It is preferable to further comprise a biasing means.

  In the fastener for jewelry according to the present invention, it is preferable that the movable member urging means is inserted into one of the first and second movable members.

  In the fastener for jewelry according to the present invention, it is preferable that the first and second movable members and the movable member urging means are prevented from falling off from the main body portion by one drop-off preventing member. .

  In the fastener for jewelry according to the present invention, at least one of the main body, the first movable member, and the second movable member has the engaging portion engaged with the insertion member. It is preferable that a sound output hole for generating an engagement sound generated when the external device is released to the outside of the fastener for jewelry is formed.

  In the fastener for jewelry according to the present invention, it is preferable that the first and second operation parts have a shape and a dimension along the outer surface of the main body part.

  In the fastener for jewelry according to the present invention, in the front view of the fastener for jewelry, the outer surface of the main body portion and the first and second operation portions may form one circle. preferable.

  In the accessory fastener according to the present invention, it is preferable that the accessory fastener has a substantially spherical outer shape.

  In the fastener for jewelry according to the present invention, it is preferable that at least one of the insertion member and the main body is provided with a connecting portion for connecting the fastener for jewelry to the accessory. .

  In the fastener for jewelry according to the present invention, it is preferable that the connecting portion includes a connecting ring.

  According to the present invention, the first and second operation units are provided, and the first and second operation units are pressed at a time in a direction to bring the first and second operation units closer to each other. Thus, since the release operation is configured, the amount of protrusion of each operation unit from the main body unit can be suppressed as compared with the case where only one operation unit is provided. Moreover, the protrusion of each operation part from the main body part can be eliminated by appropriately setting the shapes of the main body part and the operation part. Therefore, it is possible to improve the appearance of the fastener for accessory and the accessory connected thereto.

  Embodiments according to the present invention will be described below with reference to the drawings.

[First Embodiment]
FIG. 1 is a front sectional view showing a fastener 100 for jewelry according to the first embodiment, and FIG. 2 is an exploded perspective view of the fastener 100 for jewelry. In FIG. 2, the positional relationship between the left and right is substantially reversed with respect to FIG. 1.

  As shown in FIGS. 1 and 2, a fastener 100 for a jewelry according to a first embodiment includes a main body case (main body portion) 10, an insertion member 20 inserted into the main body case 10, and a main body case 10. The first and second engaging portions 31, 41 for engaging the insertion member 20 inserted into the main body case 10 by engaging the insertion member 20, and the first and second First and second operation portions 32 and 42 for releasing the engagement state between the second engagement portions 31 and 41 and the insertion member 20 are provided.

  Here, the 1st engaging part 31 and the 1st operation part 32 are comprised integrally mutually. That is, each of the first engaging portion 31 and the first operating portion 32 constitutes a part of the first movable member 30.

  Similarly, the 2nd engaging part 41 and the 2nd operation part 22 are comprised integrally mutually. That is, the second engaging portion 41 and the second operation portion 42 constitute a part of the second movable member 40, respectively.

  Furthermore, the fastener 100 for jewelry is provided with a coil spring (movable member urging means) 60 that urges the first and second movable members 30 and 40, and the coil spring 60 and the first and second movable members 30. , 40 is provided with a pin (drop-off prevention member) 50 that prevents the main body case 10 from falling off.

  Hereinafter, each component will be described in detail.

<Pin>
In the case of this embodiment, the pin 50 is, for example, a spring bar as shown in FIG.

  That is, the pin 50 is compressed into the cylindrical main body cylinder 51, the projecting member 52 provided on the main body cylinder 51 so as to be able to protrude from the openings at both ends of the main body cylinder 51, and the main body cylinder 51. And a compression type coil spring (biasing means) 53 arranged in a state.

  Among these members, the protruding member 52 is disposed in the main body cylinder 51 and slides along the inner peripheral surface of the main body cylinder 51, and is configured to have a smaller diameter than the sliding section 52a and outside the main body cylinder 51. And an expansion / contraction portion 52b that can protrude or enter the main body cylinder 51.

  Further, both end portions of the main body cylinder 51 are bent inward with the coil spring 53 and the pair of projecting members 52 disposed in the main body cylinder 51, and the opening areas of the both end portions are equal to each other. Although it is larger than the diameter of the expansion / contraction part 52b, it is narrowed to an area smaller than the diameter of the sliding part 52a. Thereby, the pair of protruding members 52 and the coil spring 53 are prevented from falling off from the main body cylinder 51.

  In such a pin 50, when the expansion / contraction part 52b of the protruding member 52 is pushed in the direction of arrow A in FIG. 3 (in the direction of arrow B in the case of the right-side protruding member 52), the expansion / contraction part 52b of the pressed protruding member 52 is pressed. However, it enters the main body cylinder 51 against the urging of the coil spring 53, and the pin 50 is contracted in appearance. At this time, the sliding portion 52 a slides along the inner peripheral surface of the main body cylinder 51. Further, when the pressing force on the projecting member 52 is released, the expansion / contraction portion 52b of the projecting member 52 again projects out of the main body cylinder 51 in accordance with the urging of the coil spring 53, and the pin 50 extends in appearance.

<Insert member>
As shown in FIG.1 and FIG.2, in the insertion member 20, the part inserted in the main body case 10 at least is comprised by the pin shape (round bar shape), for example. In the case of this embodiment, for example, almost the entire insertion member 20 is configured in a pin shape.

  The insertion member 20 has an engaged groove 21 with which the engaging portion 31 is engaged. The engaged groove 21 is, for example, a constricted portion formed so as to go around the trunk of the insertion member 20.

  In the case of the present embodiment, the insertion member 20 has, for example, a plurality of engaged grooves 21 formed therein. That is, the engaged grooves 21 are formed at a plurality of locations in the longitudinal direction of the insertion member 20 (for example, in the case of this embodiment, specifically, for example, 3 locations).

  In order to engage the engaging portions 31 and 41 with the insertion member 20, the engaging portions 31 and 41 are engaged with any two of the three engaged grooves 21 among the three engaged grooves 21. Since it only needs to be engaged, it is possible to adjust the length of the necklace or other accessory (length in the direction of arrows D and G in FIG. 1) that is connected to the fastener 100 for accessory. It becomes.

  Moreover, as shown in FIG. 1, the front-end | tip part 22 of the insertion member 20 has the taper-shaped part 22a formed so that a diameter may become thin gradually toward the front-end | tip side, and the end surface of the front end side of the insertion member 20 And a planar portion 22b that constitutes. Of these, the tapered portion 22a is for facilitating guiding the insertion member 20 to a predetermined position when the insertion member 20 is inserted into the main body case 10. Further, the reason why the end face on the front end side is the flat portion 22b is that if the end face is sharp, the user's hand may be damaged.

  The insertion member 20 includes, for example, a relatively small diameter portion 23 and a relatively large diameter portion 24, and the small diameter portion 23 includes the engaged groove 21 and the distal end portion 22. Is included. The large-diameter portion 24 is formed to have a large diameter so that the user can pinch the insertion member 20 and easily handle it.

  In the large diameter portion 24, the outer diameter of the end on the small diameter portion 23 side is equal to that of the small diameter portion 23, and the diameter of the large diameter portion 24 gradually increases as the distance from the small diameter portion 23 increases.

  Furthermore, the insertion member 20 is connected to one end of a necklace or other accessory, for example, at the proximal end of the insertion member 20 (the portion opposite to the distal end), that is, the proximal end of the large diameter portion 24, for example. A connection ring (connection part) 26 for connection is formed.

  Each engaged groove 21 has an inclination that gradually increases in diameter from the distal end portion 22 side to the proximal end portion side of the insertion member 22, for example. A boundary portion with the groove 21 is a stepped portion.

<First movable member>
As shown in FIGS. 1 and 2, the first movable member 30 includes the first engagement portion 31 and the first operation portion 32 as described above, as well as the interior of the first movable member 30. A first through hole 33 for allowing the pin 50 to pass through, a second through hole 34 for passing the insertion member 20 (for example, the small diameter portion 23 in particular) into the first movable member 30, and a coil A spring holding recess 35 that holds the spring 60 therein and a bias receiving portion 36 that receives a biasing force from the coil spring 60 are provided.

  Here, the 1st movable member 30 is comprised by the cylinder shape (for example, cylindrical shape) with which the one end side was obstruct | occluded, for example.

  A first operating portion 32 is configured by the closed end portion of the first movable member 30. The first operation unit 32 is formed and arranged so as to constitute a surface (for example, a curved surface in this embodiment) along the outer surface of the main body case 10. In other words, in the case of the present embodiment, for example, the first operation unit 32 has a shape and dimensions that constitute a part of a spherical surface having the same dimensions as the main body case 10.

  Further, the first through-hole 33 that penetrates the pin 50 is formed in a state of penetrating the first movable member 30 in a direction orthogonal to the longitudinal direction. The first through-hole 33 extends in the engagement direction of the engagement portion 31 (in the direction of arrows E and F in FIG. 1) in which the first movable member 30 is in the operation direction and the opposite direction even when the pin 50 is penetrated. In order to be able to move, the diameter of the pin 50 (the main body cylinder 51) is formed to be sufficiently larger in the direction, but in the direction from the front to the back of the paper surface of FIG. ) Is slightly larger than the diameter.

  The second through hole 34 that penetrates the insertion member 20 is also formed in a state of penetrating the first movable member 30 in a direction orthogonal to the longitudinal direction. In addition, the penetration direction of the 1st and 2nd through-holes 33 and 34 is set to the mutually parallel direction, for example. Therefore, the insertion member 20 and the pin 50 pass through the first movable member 30 in a state parallel to each other, and are attached to the main body case 10. Further, the second through-hole 34 is formed in the engaging direction of the engaging portion 31 (the arrow E direction and the F direction in FIG. 1) in which the movable member 30 is in the operation direction and the opposite direction even when the insertion member 20 is penetrated. In this direction, the insertion member 20 (small-diameter portion 23) is formed to be sufficiently larger than the diameter thereof, but in the direction from the front to the back of FIG. The diameter is set to be slightly larger than the diameter of the small diameter portion 23).

  Further, the first engaging portion 31 is formed in the opening located on the side of the insertion hole 13 to be described later, among the openings at both ends of the second through hole 34. More specifically, in the inner peripheral edge of the opening located on the side of the insertion hole 13, the portion farther from the first operating portion 32 is directed to the first operating portion 32 side. The first engaging portion 31 is formed.

  The first engaging portion 31 has an inclined surface that faces the insertion hole 13 side. This inclined surface suitably guides the distal end portion 22 of the insertion member 20 into the second through hole 34.

  The second through hole 34 is provided at a position closer to the first operation portion 32 than the first through hole 33.

  Further, the spring holding recess 35 is constituted by, for example, an inner peripheral portion that is located closer to the first operation portion 32 than the second through hole 34 in the first movable member 30. The inner diameter of the spring holding recess 35 is set to be slightly larger than the outer diameter (winding diameter) of the coil spring 60.

  The urging receiving portion 36 that receives the urging force from the coil spring 60 is configured by the bottom surface of the spring holding recess 35 (also the back surface of the first operation portion 32).

<Second movable member>
As shown in FIGS. 1 and 2, the second movable member 40 includes the second engaging portion 41 and the second operation portion 42 as described above, as well as the inside of the second movable member 40. A third through hole 43 for allowing the pin 50 to pass through, a fourth through hole 44 for allowing the insertion member 20 (for example, the small-diameter portion 23 in particular) to pass through the second movable member 40, and a coil And a bias receiving portion 45 that receives a biasing force from the spring 60.

  Here, the 2nd movable member 40 is also comprised by the cylinder shape (for example, cylindrical shape) with which the one end side was obstruct | occluded, for example.

  The outer diameter of the cylindrical portion constituting the second movable member 40 is set to be slightly smaller than the inner diameter of the cylindrical portion constituting the first movable member 30. And the opening end side of the cylindrical part of the second movable member 40 is inserted into the cylindrical part of the first movable member 30.

  A second operating portion 42 is configured by the closed end portion of the second movable member 40. The second operation unit 42 is formed and arranged so as to constitute a surface (for example, a curved surface in the case of the present embodiment) along the outer surface of the main body case 10. In other words, in the case of the present embodiment, for example, the second operation unit 42 has a shape and dimensions that constitute a part of a spherical surface having the same dimensions as the main body case 10. More specifically, the second operation unit 42 has the same size and shape as the first operation unit 32, for example.

  Further, the third through hole 43 through which the pin 50 passes is formed in a state of penetrating the second movable member 40 in a direction perpendicular to the longitudinal direction. The third through-hole 43 extends in the direction of engagement of the engaging portion 31 (in the direction of arrows E and F in FIG. 1) in which the second movable member 40 is in the operation direction and the opposite direction even when the pin 50 is penetrated. In this direction, the pin 50 (the main body cylinder 51) is formed to be sufficiently larger than the diameter of the pin 50 so that the pin 50 (the main body cylinder 51) can be moved. ) Is set to a dimension slightly larger than the diameter.

  Further, the fourth through hole 44 that penetrates the insertion member 20 is also formed so as to penetrate the second movable member 40 in a direction orthogonal to the longitudinal direction thereof. In addition, the penetration direction of the 3rd and 4th through-holes 43 and 44 is set to the mutually parallel direction, for example. Therefore, the insertion member 20 and the pin 50 pass through the first and second movable members 40 in a state parallel to each other, and are attached to the main body case 10. Further, the fourth through hole 44 is arranged in this direction so that the second movable member 40 can move in the operating direction and the engaging direction of the engaging portion 31 which is the opposite direction even when the insertion member 20 is penetrated. Is formed sufficiently larger than the diameter of the insertion member 20 (the small-diameter portion 23), but in the direction from the front to the back of the sheet of FIG. 1 than the diameter of the insertion member 20 (the small-diameter portion 23). Is set to a slightly larger dimension.

  Further, the second engaging portion 41 is formed in the opening located on the side of the insertion hole 13 to be described later, among the openings at both ends of the fourth through hole 44. More specifically, the inner peripheral edge of the opening disposed on the insertion hole 13 side is formed on the portion far from the second operation portion 42 so as to face the second operation portion 42 side. Has been.

  The second engaging portion 41 is formed with an inclined surface facing the insertion hole 13 side. This inclined surface suitably guides the distal end portion 22 of the insertion member 20 into the fourth through hole 44.

  The fourth through hole 44 is provided at a position farther from the second operation unit 42 than the third through hole 43.

  Further, the bias receiving portion 45 that receives the biasing force from the coil spring 60 is configured by an end face on the opening side of the cylindrical portion that constitutes the second movable member 40.

<Body case>
As shown in FIG.1 and FIG.2, the main body case 10 is comprised by the spherical housing | casing shape, for example.

  The main body case 10 is provided with an area where the first movable member 30, the second movable member 40, the coil spring 60 and the pin 50 are disposed, and the first movable member 30 is guided in the moving direction thereof. A hole 11 is formed.

  As will be described later, the first and second movable members 30, 40, the coil spring 60, and the pin 50 are inserted into the arrangement hole 11 and are arranged in the arrangement hole 11. The arrangement hole 11 is formed so as to penetrate the main body case 10.

  Further, a substantially cylindrical (substantially cylindrical) wall-like portion 12 constituting a part of the arrangement hole 11 is integrally formed with the main body case 10 inside the main body case 10.

  Further, the main body case 10 is formed with an insertion hole 13 into which the insertion member 20 is inserted. The insertion hole 13 has an insertion direction of the insertion member 20 that intersects the insertion direction of the first and second movable members 30 and 40 into the arrangement hole 11, more specifically, an orthogonal direction. It is formed to become. More specifically, the insertion direction of the insertion member 20 and the insertion directions of the first and second movable members 30 and 40 into the arrangement hole 11 are included in the same plane. ing.

  Moreover, in the wall-shaped part 12, the through-hole 12a is formed in the site | part which faces the insertion hole 13 side, The insertion member 20 inserted from the insertion hole 13 penetrates this through-hole 12a. ing. A portion of the through hole 12a facing the insertion hole 13 is a mortar-shaped portion 12b that expands as the insertion hole 13 is approached (thinner becomes narrower as the distance from the insertion hole 13 increases). Is preferably guided to the center position of the through hole 12a.

  In the internal space of the main body case 10, a portion closer to the insertion hole 13 than the wall-like portion 12 and a portion farther from the insertion hole 13 than the wall-like portion 12 are space portions into which the insertion member 20 is inserted. 18 and 19 are configured.

  Further, a pair of positioning holes 14 and 15 for positioning the pin 50 are formed in the wall-shaped part 12. More specifically, the hole portions 14 and 15 position the pins 50 in the main body case 10 by positioning both end portions of the pin 50, that is, both the expansion and contraction portions 52b.

  The inner diameters of the holes 14 and 15 are set to be slightly larger than the outer diameter of the expansion / contraction part 52b of the protruding member 52 of the pin 50, respectively.

  The hole portion 15 communicates with the arrangement hole 11 and the space portion 18, and the hole portion 14 communicates with the arrangement hole 11 and the space portion 19.

  In addition, on the outer surface of the main body case 10, for example, a portion of the necklace 80 (see FIG. 2) or other accessory (for example, the connection ring 26 of the insertion member 20 and the like) A connecting ring (connecting portion) 16 for connecting with the end portion on the opposite side to the connecting portion is formed.

<Coil spring>
The coil spring 60 is, for example, a compression type coil spring.

<Assembly>
The assembly of the constituent elements of the accessory fastener 100 configured as described above can be performed, for example, in the following manner.

  First, the coil spring 60 is inserted into the coil spring holding recess 35 of the first movable member 30, and the cylindrical portion of the second movable member 40 is inserted into the cylindrical portion of the first movable member 30. Insert from the side.

  The first and second movable members 30 are arranged so that the first engaging portion 32 of the first movable member 30 and the second engaging portion 42 of the second movable member 40 are on the same side. , 40 is aligned.

  Next, the pin 50 is passed through the first through hole 33 of the first movable member 30 and the third through hole 43 of the second movable member 40.

  At this stage, the first and second movable members 30 and 40 are connected to each other by a pin 50. In addition, the coil spring 60 is sandwiched between the urging receiving portion 36 of the first movable member 30 and the urging receiving portion 45 of the second movable member 40 in the coil spring holding recess 35, and is in a compressed state. It has become.

  Next, in a state where the pair of expansion / contraction portions 52b of the pin 50 are both compressed, the first and second movable members 30, 40, the coil spring 60 and the pin 50 are moved into the arrangement hole 11 as shown by arrows in FIG. Insert in C direction.

  During this insertion, the pair of expansion / contraction portions 52b of the pin 50 slides on the inner peripheral surface of the arrangement hole 11 until reaching the hole portions 14 and 15, and when reaching the hole portions 14 and 15, Projecting according to the urging force of the spring 53 and entering the holes 14 and 15, respectively.

  Thereby, it will be in the state where each component was assembled | attached to the predetermined position (state which removed the insertion member 20 from FIG. 1).

  In the state where the pin 50 is arranged as shown in FIG. 1, the first and second movable members 30, 40 are positioned because the stretchable parts 52 b at both ends of the pin 50 are positioned in the holes 14, 15, respectively. The pin 50 and the coil spring 60 do not fall off from the main body case 10.

  By assembling in this way, the first and second operation portions 32 and 42 are in a state of configuring the outer peripheral surface of the accessory fastener 100 in cooperation with the main body case 10. That is, the first and second operation parts 32 and 42 are arranged along the outer surface of the main body case 10. Therefore, it is visually recognized as if it were one sphere including the main body case 10 and the first and second operation parts 32 and 42.

<Operation>
Next, operation | movement of the fastener 100 for accessories of the above structures is demonstrated.

  First, the engaging operation between the first and second engaging portions 31 and 41 and the insertion member 20 will be described.

  In order to engage the first and second engaging portions 31 with the insertion member 20, the insertion member 20 is moved from the distal end portion 22 side into the insertion hole 13 of the main body case 10 as shown by the arrow D in FIG. Insert in the direction.

  At this time, even if the distal end portion 22 of the insertion member 20 is displaced from the center position of the through hole 12a, the distal end portion 22 is guided to the center position of the through hole 12a by the mortar-shaped portion 12b.

  Moreover, after the front-end | tip part 22 of the insertion member 20 reaches | attains the 1st engaging part 31 of the 1st movable member 30, and the 2nd engaging part 41 of the 2nd movable member 40, it inserts in further back. As a result, the first and second engaging portions 31 are gradually pressed against the tapered portion 22 a of the tip portion 22. Therefore, the first engagement portion 31 moves in the direction of arrow F in FIG. 1 against the biasing force of the coil spring 60, while the second engagement portion 41 resists the biasing force of the coil spring 60. It moves in the direction of arrow E in FIG. At this time, the entire first movable member 30 moves in the direction of arrow F together with the first engaging portion 31, and the entire second movable member 40 moves together with the second engaging portion 41 in the direction of arrow F. Move in F direction.

  When the insertion member 20 is further inserted further and the engaged groove 21 on the most distal end 22 side reaches the first engagement portion 31, the first engagement portion 31 is biased by the coil spring 60. Accordingly, it moves in the direction of arrow E, enters the engaged groove 21, and engages with the engaged groove 21. At this time, the entire first movable member 30 moves in the direction of arrow E together with the first engaging portion 31.

  When the insertion member 20 is further inserted deeper, the first engaging portion 31 moves again in the direction of the arrow F along the inclination of the engaged groove 21, and accordingly, the entire first movable member 30 is moved. Also moves in the direction of arrow F.

  Thereafter, when the second engaged groove 21 from the tip side reaches the first engaging portion 31, the first engaging portion 31 engages with the engaged groove 21. At almost the same time, the engaged groove 21 closest to the distal end portion 22 reaches the second engaging portion 41, and the second engaging portion 41 engages with the engaged groove 21.

  Thus, the first and second engaging portions 31 and 41 are respectively engaged with the insertion member 20, and the insertion member 20 is prevented from being detached from the main body case 10.

  FIG. 1 shows a state in which the insertion member 20 is further inserted into the back, and the first and second engaging portions 31 and 41 are moved one by one to the adjacent engaged groove 21. It is.

  Next, the engagement release operation will be described.

  In order to release the engaged state between the first and second engaging portions 31 and 41 and the insertion member 20, the first and second operating portions 32 and 42 are sandwiched (to be close to each other). Press operation. That is, the first operation unit 32 is pressed in the direction of arrow F in FIG. 1, while the second operation unit 42 is pressed in the direction of arrow E.

  That is, when the first operating portion 32 is operated in the direction of the arrow F, the first engaging portion 31 is separated from the engaged groove 21 that has been engaged so far, while the second operating portion. By operating 42 in the direction of arrow E, the second engaging portion 41 is also separated from the engaged groove 21 that has been engaged so far, so that the first and second engaging portions 31, The engagement state between 41 and the insertion member 20 is released.

  Thus, in the state where the engagement state between the first and second engagement portions 31 and 41 and the insertion member 20 is released, the insertion member 20 can be pulled out from the main body case 10 in the direction of arrow G. .

  As described above, in the accessory fastener 100 according to the present embodiment, the insertion member can be obtained by performing a pressing operation on the first and second operation units 32 and 42 at a time so as to bring them closer to each other. 20 and the first and second engaging portions 31 and 42 can be released from the engaged state.

<Parts replacement operation>
Next, the operation when any part is replaced for some reason will be described.

  Here, some reason occurs when, for example, any part is broken or when any part is to be replaced with the same part having a different decorative property.

  Such component replacement operation is performed with the insertion member 20 removed from the main body case 10.

  In this state, for example, a pin (not shown) is inserted into the insertion hole 13 of the main body case 10, and the tip of the inserted pin is further inserted into the hole 15 via the space 18, and the tip of the pin is inserted. Thus, the expansion / contraction part 52b on one end side of the pin 50 is pushed and contracted.

  Then, the one end side of the pin 50 moves in the direction of arrow F according to the urging force of the coil spring 40, and the pin 50 tilts. During this tilting, the telescopic portion 52b on the other end side of the pin 50 tilts in the hole 14 (because there is some play in the hole 14). Furthermore, the pin 50 can be removed together with the first and second movable members 30 and 40 and the coil spring 60 by pressing the first operating portion 32 in the direction of arrow F.

  Thus, any one or more of the pins 50, the coil spring 60, the first movable member 30, the second movable member 40, and the main body case 10 can be replaced.

  The parts replacement operation can also be performed as follows.

  That is, as described above, for example, a pin (not shown) is inserted into the insertion hole 13 of the main body case 10, and the tip of the inserted pin is further inserted into the hole 15 via the space portion 18. At the same time, the telescopic portion 52b on one end side of the pin 50 is pushed and contracted by the tip of the pin, and at the same time, for example, a J-shaped pin is inserted into the insertion hole 13 of the main body case 10, and the tip of the pin is inserted into the space 18 to space. The pin 19 is inserted into the hole 14 via the portion 19, and the extensible portion 52 b on the other end side of the pin 50 is pushed and contracted by the tip of the pin.

  Then, the pin 50 moves in the direction of the arrow F in FIG. 1 according to the urging force of the coil spring 60. For example, when the pin 50 is further pressed in the direction of the arrow F in the first operating portion 32, the first and second movable parts are moved. Along with the members 30 and 40 and the coil spring 60, the pin 50 can be removed.

  In the latter operation (when two pins are inserted) of the above replacement operations, instead of using the J-shaped pins as described above, holes are formed on the outer peripheral surface of the body case 10 on the space 19 side. A hole (not shown) is provided in a portion facing the portion 14, a pin is inserted from the hole, and this pin is further inserted into the hole 14 through the space portion 19, and the other end side of the pin 50. This can be done more easily by compressing the expansion / contraction part 52b.

  According to the first embodiment as described above, the engagement state between the insertion member 20 and the first and second engagement portions 31 and 42 is sandwiched between the first and second operation portions 32 and 42. Therefore, the pressing stroke of the first operating portion 32 (movement distance for disengagement) and the pressing stroke of the second operating portion 42 are shortened. Even if set, the insertion member 20 can be suitably prevented from coming off the main body case 10. Therefore, the protrusion amount from the main body case 10 of the 1st and 2nd operation parts 32 and 42 can be suppressed as much as possible.

  Specifically, for example, as in the present embodiment, the first and second operation portions 32 and 42 do not protrude from the main body case 10 at all by making the outer diameter shape of the main body case 10 spherical. It can be a design.

  Thereby, the appearance of the fastener 100 for jewelry can be improved.

  Furthermore, since the movable member 30 and the coil spring 50 can be attached to the main body case 10 with one pin 50, the number of parts is small, and assembly and parts replacement can be easily performed as described above.

  Further, the pin 50 is completely embedded in the main body case 10 and is not exposed, so that the appearance is good.

  Further, when plating or painting is performed on each constituent member of the fastener 100 for jewelry, if the respective components are assembled and then plated or painted, for example, the first and second movable members can be used. The members 30 and 40 may not move and are in a bad state. Also, it is necessary to mark and color-code them, which is troublesome. In the case of the present embodiment, after each component member is plated or decorated. Therefore, for example, the first and second movable members 30 and 40 do not get stuck, and each component can be plated and painted beautifully. There is also an effect that the coordination (color coding of each component) is easy.

  In addition, since the three-stage engaged grooves 21 are provided, an effect that the length of the accessory can be adjusted is also obtained.

  In addition, since the length can be adjusted in this way, the amount of protrusion of the insertion member 20 from the main body case 10 can be varied. As a result, the main body case 10 has different dimensions (dimensions in the directions of arrows G and D in FIG. 1, particularly from the position where the first or second engaging portions 31, 41 are arranged, the opening of the insertion hole 13. There is also a secondary effect that a favorite item (for example, a color or a design that matches the preference) can be appropriately selected from a plurality of types of main body cases 10 having dimensions to the end).

  In the first embodiment, the spherical main body case 10 is illustrated, but the shape of the main body case 10 is arbitrary, and may be configured in a rectangular parallelepiped shape, for example.

  Note that the engagement strength between the engagement portion 31 and the engaged groove 21 (the strength that drops when the insertion member 20 is pulled in the direction of arrow G) is the angle and height of the peak of the engaged groove 21. , And the strength of the coil spring 40 can be set by appropriately adjusting.

  Moreover, although the number of stages of the engaged portion 21 of the insertion member 20 is three, the number of stages may be two, for example, or four or more.

<Modification of First Embodiment>
Next, a modification of the first embodiment will be described with reference to FIG.

  The fastener 200 for jewelry shown in FIG. 4 is different from the fastener 100 described above in terms of the number and shape of the engaged grooves 21, the shapes of the first and second engaging portions 31 and 41, and Only the structure of the 1st and 2nd operation parts 32 and 42 differs, and it is comprised similarly to the fastener 100 for jewelry in other points. Therefore, in the accessory fastener 200, the same components as those in the accessory fastener 100 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 4, in the fastener 200 for jewelry, the engaged groove 21 of the insertion member 20 has, for example, two stages.

  The engaged groove 21 has a valley shape. That is, with the lowest point (the most constricted position) in the valley shape as a reference, the diameter is increased toward the distal end portion 22 side, and the proximal end portion (the portion opposite to the distal end side) side of the insertion member 20 Inclined so as to expand the diameter even if it is directed.

  Moreover, the shape of the 1st and 2nd engaging part 31 is made into the shape of a mountain corresponding to the shape of each to-be-engaged groove | channel 21.

  For this reason, when inserting the insertion member 20 in the arrow D direction, the engaging portions 31 and 41 can be easily engaged with the engaged grooves 21 and the insertion member 20 is strongly pulled in the arrow G direction. In this case, the engaging portions 31 and 41 can be removed from the engaged grooves 21. This is because if the engaging portions 31 and 41 and the engaged groove 21 are engaged with each other too strongly, the neck of the user may be tightened by the necklace for some reason. That is, as in the example shown in FIG. 4, when a certain amount of force is applied, the engagement between the engaging portions 31 and 41 and the engaged groove 21 is released, thereby Such a problem can be avoided.

  In the case of the example shown in FIG. 4, the first and second operating portions 32 and 42 are emitted when the first and second engaging portions 31 and 41 are engaged with the insertion member 20. A hole (sound output hole) 38 is formed to output the engagement sound to the exterior of the accessory fastener 100. For example, the hole 38 is formed in a state of penetrating the front and back of the first and second operation portions 32 and 42.

  By providing the sound generating hole 38 in this manner, the engagement sound generated when the first and second engaging portions 31 and 41 are engaged with the insertion member 20 is preferably used by the user's ear. The user can be surely recognized whether or not the engaged state has been reached. In addition, in the fasteners for jewelry, there is a fact that those who can hear the engagement sound in this way clearly sell better than those which can not be heard.

  In addition, although the example which formed the hole 38 for sound generation in both the 1st and 2nd operation parts 32 and 42 was demonstrated, this hole 38 is the 1st and 2nd operation parts 32 and 42. You may form only in any one. Further, the sound generating hole 38 is not limited to being formed in the operation portion (any one of the first and second operation portions 32 and 42), and may be formed in the main body case 10.

[Second Embodiment]
Next, with reference to FIG. 5, a fastener 300 for jewelry according to a second embodiment will be described.

  The accessory fastener 300 shown in FIG. 5 differs from the accessory fastener 100 according to the first embodiment only in the following points, and is configured in the same manner as the accessory fastener 100 in other points. Therefore, the same components as those in the jewelry accessory 100 are denoted by the same reference numerals, and description thereof is omitted.

  In the first embodiment, the example in which the spring bar as shown in FIG. 3 is used as the pin 50 has been described. However, in the third embodiment, for example, a spring pin shown in FIG.

  The pin 50 shown in FIG. 6 includes a cylindrical main body 55, a notch 56 formed over both ends of the main body 55 in the axial direction, and the main body 55 so that the main body 55 is slightly tapered. Chamfered portions 57 formed at both ends of the portion 55.

  Such a pin 50 is forcibly fitted in a hole portion (that is, a hole portion 311 described later) that is substantially equal to the outer diameter (body circumference) of the pin 50 or slightly smaller than the outer diameter. It is fixed in the part 311. The reason why the pin 50 includes the chamfered portion 57 is to make the forced fitting smooth.

  Moreover, as shown in FIG. 5, the main body case 10 in the case of the accessory fastener 300 according to the present embodiment is formed in, for example, a polygonal shape in front view (specifically, for example, an octagon). In the case of this embodiment, the shape of the main body case 10 is arbitrary.

  In the case of this embodiment, instead of the holes 14 and 15 in the first embodiment, a hole 311 for arranging the pin 50 is formed in a state of penetrating the main body case 10. Specifically, the longitudinal direction of the hole 311 is, for example, parallel to the insertion direction of the insertion member 20.

  In the case of the present embodiment, the first and second operation units 32 and 42 are each formed flat, for example. This is to achieve harmony with the outer diameter shape of the main body case 10.

  In the case of the present embodiment, instead of the arrangement hole 11 in the first embodiment, the first arrangement hole 17a serving as the arrangement area of the first movable member 30 and the second movable member. The second disposing holes 17b serving as the disposing regions 40 are respectively formed on the mutually opposing surfaces of the main body case 10.

  The first arrangement hole 17a and the second arrangement hole 17b communicate with each other inside the main body case 10.

  In the case of the present embodiment, the wall-shaped portion 12 constitutes a portion where the first arrangement hole 17a and the second arrangement hole 17b communicate with each other.

  Furthermore, in the wall-shaped part 12, a through-hole 12 c that allows the insertion member 20 to penetrate to the space part 19 side is formed in the wall part facing the space part 19 side. In addition, this through-hole 12c is formed in the shape of a mortar like the mortar-shaped part 12b.

  In the case of the present embodiment, only one engaged groove 21 is formed in the insertion member 20, for example. Further, the engaged groove 21 is formed, for example, in a state of being constricted to a certain thickness, and the first and second engaging portions 31, 41 are provided to the one engaged groove 21. It can be engaged at once.

  Next, an assembling operation in the case of this embodiment will be described.

  First, the coil spring 60 is inserted into the coil spring holding recess 35 of the first movable member 30.

  Next, the first movable member 30 in which the coil spring 60 is inserted into the coil spring holding recess 35 is inserted into the arrangement hole 17a from the opening end side of the cylindrical portion.

  On the other hand, the second movable member 40 is inserted into the arrangement hole 17 b from the opening end side of the cylindrical portion, and further, the opening end side is inserted into the cylindrical portion of the first movable member 30.

  Here, the first and second engagement members 32 of the first movable member 30 and the second engagement portion 42 of the second movable member 40 are both directed to the insertion hole 13 side. The second movable members 30 and 40 are aligned.

  Further, the first operation unit 32 and the second operation unit 42 are pressed so as to sandwich each other, and the relative positional relationship between the first movable member 30, the second movable member 40, and the main body case 10 is determined. The state shown in FIG.

  In this state, the pin 50 is pushed into the position of FIG.

  And if the pressing force with respect to the 1st and 2nd operation parts 32 and 42 is cancelled | released, arrangement | positioning of the 1st and 2nd movable members 30 and 40 and the coil spring 60 will be in the state shown in FIG.

  As shown in FIG. 5, in the state where the pin 50 is arranged, both end portions of the pin 50 are respectively fixed in the hole portions 311. Further, the first and second movable members 30, 40 are connected to each other by the pin 50, and the first and second movable members 30, 40 are held by the pin 50. For this reason, the first and second movable members 30 and 40 do not fall off from the main body case 10.

  In the state shown in FIG. 5, the coil spring 60 is sandwiched between the bias receiving portion 36 of the first movable member 30 and the bias receiving portion 35 of the second movable member 40, and the coil spring holding recess 35. In a compressed state.

<Operation>
Next, the operation of the accessory fastener 300 configured as described above will be described.

  First, the engaging operation between the first and second engaging portions 31 and 41 and the insertion member 20 will be described.

  In order to engage the first and second engaging portions 31 with the insertion member 20, the insertion member 20 is moved from the distal end portion 22 side into the insertion hole 13 of the main body case 10 as shown by the arrow D in FIG. Insert in the direction.

  After the distal end portion 22 of the insertion member 20 reaches the first engagement portion 31 of the first movable member 30 and the second engagement portion 41 of the second movable member 40, it is further inserted into the back. Since the first and second engaging portions 31 are gradually pressed against the tapered portion 22a of the tip portion 22, the first engaging portion 31 resists the urging force of the coil spring 60 and is shown by the arrow in FIG. While moving in the F direction, the second engaging portion 41 moves in the direction of arrow E in FIG. 5 against the urging force of the coil spring 60.

  When the insertion member 20 is further inserted further and the engaged groove 21 reaches the first engagement portion 31, the first engagement portion 31 moves in the direction of arrow E according to the urging force of the coil spring 60. Then, it enters the engaged groove 21 and engages with the engaged groove 21.

  When the insertion member 20 is further inserted deeper and the engaged groove 21 reaches the second engaging portion 41, the second engaging portion 41 is also engaged with the engaged groove 21.

  Thus, the first and second engaging portions 31 and 41 are engaged with the engaged groove 21 of the insertion member 20, and the insertion member 20 is prevented from being detached from the main body case 10.

  The engagement release operation (release operation) is the same as that in the first embodiment.

<Parts replacement operation>
Further, in the case of the present embodiment, the part replacement operation can be performed by pushing a pin (not shown) strongly into the hole 311 and protruding the pin 50 out of the hole 311.

  According to the second embodiment as described above, the same effects as those of the first embodiment can be obtained. In addition, since the pins 50 as shown in FIG. 6 are used, the assembling operation is further simplified.

  Also in the case of the second embodiment, the engaged groove 21 may be formed in a plurality of stages as in the first embodiment, or the sound generating hole 38 may be provided. good.

  Or you may apply the to-be-engaged groove | channel 21 like 2nd Embodiment in the case of said 1st Embodiment.

<Modification of Second Embodiment>
Next, a modification of the second embodiment will be described with reference to FIG.

  A fastener for jewelry 400 shown in FIG. 7 is different from the above-described fastener 300 for jewelry in that only the structure of the engaged groove 21 and the structure of the wall-like portion 12 are different. It is comprised similarly to the fastener 300. FIG. Therefore, in the fastener 400 for jewelry, the same code | symbol is attached | subjected to the component similar to the fastener 300 for jewelry, and the description is abbreviate | omitted.

  As shown in FIG. 7, in the accessory fastener 400, the engaged groove 21 of the insertion member 20 has, for example, two stages. Further, the engaged groove 21 on the base end side is formed deeper than the engaged groove 21 on the distal end side.

  The wall portion 12 also has a hole 312 through which the pin 50 passes. That is, the pin 50 is fixed to the wall-shaped portion 12, but the portion where the hole portion 311 is formed in the outer shell portion of the main body case 10 is thinned accordingly.

  Note that, in the modification of the second embodiment, it is also possible to provide the sound output hole 38 as in the first embodiment.

It is front sectional drawing which shows the fastener for jewelry according to 1st Embodiment. It is a disassembled perspective view which shows the fastener for jewelry according to 1st Embodiment. It is a partially broken front view which shows the pin with which the fastener for jewelry according to 1st Embodiment is provided. It is front sectional drawing which shows the fastener for jewelry of the modification of 1st Embodiment. It is front sectional drawing which shows the fastener for jewelry according to 2nd Embodiment. It is a front view which shows the pin with which the fastener for jewelry which concerns on 2nd Embodiment is provided. It is front sectional drawing which shows the fastener for jewelry of the modification of 2nd Embodiment.

Explanation of symbols

100 Jewelery Fasteners 10 Body Case (Main Body)
16 Connecting ring (connecting part)
20 Insertion member 21 Engagement groove 26 Connection ring (connection part)
31 1st engagement part 41 2nd engagement part 32 1st operation part 43 2nd operation part 32a Connection ring (connection part)
30 1st movable member 40 2nd movable member 38 Hole (hole for sound emission)
50 pins (fall-off prevention member)
60 Coil spring (movable member biasing means)
52b Telescopic part 200 Jewelery fastener 300 Jewelery fastener 400 Jewelery fastener

Claims (19)

A main body portion, an insertion member inserted into the main body portion, and an engagement portion that engages with the insertion member inserted into the main body portion so that the insertion member is prevented from being detached from within the main body portion. In the fastener for jewelry, comprising: an operation unit for releasing the engagement state between the engagement unit and the insertion member;
The first and second operation units are provided, and the first and second operation units are subjected to a pressing operation in a direction to bring the first and second operation units closer to each other at a time. A fastener for jewelry that is configured to be released.   The fastener for jewelry according to claim 1, wherein an engagement groove into which the engaging portion is engaged is formed in the insertion member.   The fastener for jewelry as set forth in claim 2, wherein the engaged groove is formed at a plurality of locations in the insertion member in the insertion direction to the main body. Comprising first and second engaging portions;
Among these, the first engagement portion is disengaged from the insertion member by operating the first operation portion,
The fastener for jewelry as claimed in any one of claims 1 to 3, wherein the second engagement portion is disengaged from the insertion member by operating the second operation portion. .   The fastener for jewelry as set forth in claim 4, wherein the first and second engaging portions engage the insertion member so as to sandwich the insertion member by cooperation. A first movable member integrally having the first engagement portion and the first operation portion, and movable with respect to the main body portion;
6. The apparatus according to claim 4, further comprising: a second movable member integrally including the second engagement portion and the second operation portion and movable with respect to the main body portion. Fasteners for jewelry as described.   The accessory fastener according to claim 6, further comprising a drop-off preventing member that prevents the first and second movable members from dropping from the main body.   8. The fastener for jewelry according to claim 7, wherein the drop-off prevention member prevents the first and second movable members from dropping from the main body portion in a state where the drop-off prevention member is disposed inside the main body portion. . The drop-off prevention member penetrates the first and second movable members in a direction intersecting with the insertion direction in a state where the first and second movable members are inserted into the main body.
9. The falling-off prevention member and the first and second movable members are prevented from falling off from the main body by receiving both ends of the falling-off prevention member from the main body. A fastener for jewelry as described in 1.   The fastener for jewelry as claimed in any one of claims 7 to 9, wherein the drop-off preventing member is a pin.   The first and second movable members are further provided with movable member urging means for urging the first and second movable members in directions in which the first and second engaging portions engage with the insertion member, respectively. The fastener for jewelry as described in any one of Claims 5 thru | or 10.   12. The fastener for jewelry according to claim 11, wherein the movable member biasing means is inserted into one of the first and second movable members.   The said 1st and 2nd movable member and the said movable member biasing means are prevented from dropping from the said main-body part by one drop-off prevention member, The Claim 11 or 12 characterized by the above-mentioned. Fasteners for jewelry.   At least one of the main body, the first movable member, and the second movable member has an engagement sound generated when the engagement portion is engaged with the insertion member. 14. The fastener for jewelry according to any one of claims 6 to 13, wherein a sound emitting hole is formed for exiting the fastener for jewelry.   The fastener for jewelry as claimed in any one of claims 1 to 14, wherein the first and second operation parts are shaped and dimensioned along an outer surface of the main body part. .   The accessory according to claim 15, wherein, in a front view of the fastener for jewelry, the outer surface of the main body part and the first and second operation parts forms a circle. Fasteners.   The fastener for jewelry according to claim 16, wherein the fastener for jewelry has a substantially spherical outer shape.   The connection part for connecting the said fastener for jewelry to the accessory is provided in at least any one among the said insertion member and the said main-body part, The any one of Claims 1 thru | or 17 characterized by the above-mentioned. The fastener for jewelry according to one item. The accessory fastener according to claim 18, wherein the connecting portion includes a connecting ring.

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