String connector

Abstract

To provide a connecting tool by which anyone can easily and rigidly connect the connecting tool and a string body.SOLUTION: A connecting tool for connecting a string body R has: a claw member 2 in which a plurality of claws 20 locked to a periphery of the string body R are annularly connected to one another; and a connecting tool main body 1 having a connecting part 21b for annularly connecting the claws 20, and a string insertion hole 11 into which the claw member 2 is fit and the string body R is inserted. The string insertion hole 11 is formed with: an opening part 12 for introducing the string body R; a claw member fitting groove 13 which continues from the opening part 12, is formed larger than the opening part 12 in diameter and fit with the claw member 2; and tilt means 14 formed at a deep side of the string insertion hole 11 rather than the claw member fitting groove 13, and tilting the claws 20 in a direction in which apexes of the claws 20 are diameter-contracted by abutting on the claws 20 of the claw member 2. The connecting part 21b of the claw member 2 is formed so that the claw member 2 is diameter-contracted or diameter-expanded according to a change in tilt of the claws 20.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a connector for connecting a string used in accessories such as eyeglasses, necklaces, and bracelets to another string or other member. [Background technology]

[0002] As a connector of this kind, for example, the one described in Patent Document 1 is known. The connector described in this document has a clamp member having at least a plurality of clamp claws that can be opened and closed attached to a string, a fitting portion into which the clamp member can be fitted is provided on the metal fitting that is the connecting partner, and the clamp member is fitted into the fitting portion while attached to the string. When the clamp member is fitted into the fitting portion, the plurality of clamp claws close, and the string is clamped between the clamp claws. The connector described in this document is simple and consists of only two components: a clamping member and a metal fitting. This has the advantage that the metal fittings and the string can be connected easily. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-247791 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] However, even with the connector described in this document, consumers must prepare two components, a metal fitting and a clamping member, and then insert the clamping member onto the string and fit the clamping member into the metal fitting. Typically, the strings used in accessories such as necklaces are thin, measuring only a few millimeters in diameter, and the clamping members threaded onto the string are also tiny. Therefore, it is not easy for the average consumer to insert the tiny clamping member, through which the thin string has been threaded, into the small hole in the metal fitting. This is particularly problematic for people with low vision, the elderly, people with disabilities, and young children, who may have difficulty fitting the string and clamping member into the metal fitting.

[0005] The present invention was made in consideration of such problems, and aims to provide a connector that can connect metal fittings and a string more simply and firmly than the connectors described in the above documents, and that allows any consumer to easily connect a string and metal fittings. [Means for solving the problem]

[0006] In order to achieve the above object, the invention described in claim 1 is a connector for connecting strings, comprising: claw members each having a plurality of claws connected in a ring shape and hooked around the string; a connecting portion connecting the claws in a ring shape; and a connector body having a string insertion hole into which the claw members are fitted and into which the string is inserted, wherein the string insertion hole has an opening for introducing the string; a claw member fitting groove that is continuous with the opening and has a larger diameter than the opening and into which the claw members are fitted; and tilting means that is formed deeper into the string insertion hole than the claw member fitting groove and that comes into contact with the claws of the claw members to tilt the claws in a direction that reduces the diameter of the tops of the claws, and the connecting portion of the claw members is configured to reduce or expand the diameter of the claw members according to changes in the inclination of the claws. As described in claim 2, the position of the connecting portion on the claw member is preferably such that the connecting portion is closer to the top than the bottom of the claw member so that a recess is formed between the connecting portion and the bottom of the claw member.

[0007] With this configuration, the angle of the claw of the claw member inserted into the string insertion hole is determined to an optimal angle by the inclined surface, and deformation of the claw member is suppressed by abutment with the inclined surface. Therefore, consumers only need to prepare the connector and string of the present invention and insert the string into the string insertion hole of the connector, eliminating the hassle of inserting the claw member into the string and the hassle of having to insert the string and the claw member into the hole of the connector, and the inclined surface suppresses deformation of the claw member, allowing the string and connector to be firmly connected. The inner diameter of the opening may be smaller than the outer diameter of the claw member. In this case, as described in claim 3, it is preferable that the inner diameter of the opening is the same as the outer diameter of the claw member when the claw of the claw member is raised from the initial state. When the claw member is inserted into a small-diameter opening, a pressing force acts on the base portion from the circumferential direction by the inner peripheral surface of the opening, which causes the claw to rise and the outer diameter of the claw member to decrease to the inner diameter of the opening. By making the diameter of the opening smaller than the claw member within the range of the diameter decrease caused by the raising of the claw, the claw member can be made more difficult to remove. As described in claim 4, a gap of a predetermined size may be formed between the inner circumferential surface of the claw member fitting groove and the base of the claw member. By doing so, the claw members can rotate within the claw member fitting groove, and even if the string is twisted, the twist can be eliminated by rotating the string together with the claw members. Note that if the gap is too large, when a large pulling force is applied to the string, the claw members will reverse and the string will come off the connector, so it is preferable that the gap be large enough so that the base portion of the claw members can abut against the inner peripheral surface of the claw member fitting groove before they reverse, preventing the string from reversing. The tilting means may take any form as long as it can abut against the claw when the claw member is fitted into the claw member fitting groove to set the inclination angle of the claw when fitted into the claw member fitting groove to a preset inclination angle. It may be a protrusion or ridge protruding from the inner circumferential surface of the string member insertion hole, or as described in claim 5, it may be an inclined surface of a predetermined angle formed continuously from the claw member fitting groove. [Effects of the Invention]

[0008] The connector of the present invention is a simple one consisting of a connector body and a claw member, and can be assembled easily and quickly by simply inserting and fitting the claw member into the string insertion hole of the connector body. Furthermore, consumers can easily connect the string to the connector by simply inserting the string into the string insertion hole of the connector, and the claws of the claw member, which are set at an appropriate inclination angle inside the connector body, firmly hook onto the string, thereby achieving a strong connection that prevents the string from easily coming off the connector. BEST MODE FOR CARRYING OUT THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the string connector of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows one embodiment of a connector body constituting the connector of the present invention, where (a) is a side view of a portion thereof, (b) is a bottom view thereof, and (c) is a partially enlarged view of (a). FIGS. 2 and 3 are views showing one embodiment of a claw member, where FIG. 2 shows the state of the punched flat plate before the claws are erected, where (a) is a plan view thereof and (b) is a side view thereof, and FIG. 3 shows the state after the claws have been erected, where (a) is a plan view thereof, (b) is a side view thereof, and (c) is a bottom view thereof. In the following description, the state and configuration of the claw members shown in FIG. 3 are assumed to be "initial". The connector of the present invention comprises a connector body 1 that enables connection to other members, and a hook member 2 that is fitted into a string insertion hole 11 of the connector body 1 and engages with the string R.

[0010] [Connector body 1] The main component of the connector body 1 is a trunk portion 10 having a cord insertion hole 11 with a circular cross section, through which the cord R is inserted. The cord insertion hole 11 may be a through-hole, or may have a bottom, as in the illustrated example. Furthermore, as long as the through-hole or bottomed cord insertion hole 11 can be formed, the external shape of the trunk portion 10 is not particularly limited. It may be cylindrical, as in the illustrated example, or a polygonal prism, such as a triangular prism, a square prism, or a hexagonal prism. It may also have an irregular shape. In the illustrated example, an engagement protrusion 15 for connecting to another member is provided at one end of the trunk portion 10, but the engagement protrusion 15 is not limited to this shape as long as it can be connected to another member.

[0011] [11 string insertion holes] The inner diameter D1 of the string insertion hole 11 is large enough to insert the string R. Between the opening 12 and the string insertion hole 11, there is formed a claw member fitting groove 13 that is concentric with the string insertion hole 11 and has an inner diameter D3 larger than the inner diameter D2 of the opening 12, into which the claw member 2 introduced through the opening 12 is fitted. The inner diameter D1 of the string insertion hole 11 is preferably smaller than the inner diameter D3 of the claw member fitting groove 13.

[0012] [Slope 14] The boundary between the claw member fitting groove 13 and the opening 12 is formed as a stepped portion 13a that is approximately perpendicular, and the boundary between the claw member fitting groove 13 and the string insertion hole 11 is formed as an inclined surface 14 with an inclination angle θ1. This inclined surface 14 abuts against the claw 20 of the claw member 2 fitted into the claw member fitting groove 13 and determines the angle of the claw 20 within the cord insertion hole 11 after the claw member 2 is fitted into the claw member fitting groove 13. The inclination angle θ1 of the inclined surface 14 shown in FIG. 1(c) is relative to the axis C of the cord insertion hole 11 and is set to be larger than the initial inclination angle θ2 of the claw 20 (θ1 > θ2) and to an angle that allows the claw 20 to hook onto the string R with sufficient connection strength. If the inclination angle θ1 is too large, the claw 20 is likely to deform when the string R inserted into the string insertion hole 11 is forced in the pull-out direction, thereby reducing the connection strength of the string R. On the other hand, if the inclination angle θ1 is too small, the hooking length of the claw 20 relative to the string R is reduced, making it more likely to slip, again reducing the connection strength. Therefore, the inclination angle θ1 must be optimally selected taking into consideration the hooking strength with the string R. The inclination angle θ1 can be selected optimally depending on the material and surface coating (related to the surface hardness) of the string R, but is generally set to a range of 22.5° to 27.5°. For example, if the string R is made of silicone, a range of approximately 25° to 27.5° should be used as a guide, and if it is made of urethane, a range of approximately 22.5° to 25° should be used as a guide. The dimension of the width s of the inclined surface 14 also varies depending on the magnitude of the inclination angle θ1, but is selected within a range that allows the claws 20 protruding from the tip of the inclined surface 14 (the inner peripheral surface of the string insertion hole 11) to hook onto the string R and ensures a sufficient hooking length to prevent the string R from easily slipping out. If the width s is too large, the length of the claws 20 protruding from the inner peripheral surface of the string insertion hole 11 will be short, resulting in a short hooking length and a reduced hooking strength for the string R. On the other hand, if the width s is too small, the length of the claws 20 protruding from the inner peripheral surface of the string insertion hole 11 will be long, resulting in a long hooking length and making the string R more likely to break.

[0013] [Claw member] The claw member 2 can be obtained by punching a portion molded into the shape of the claw member 2 from a metal plate having a thickness t by press working or the like. The metal plate is preferably made of stainless steel or spring steel, which has excellent elasticity. The claw member 2 has a claw 20 with a pointed apex 20a that can be hooked onto the string R, a plurality of claws 20 (eight in the illustrated example) arranged in a ring shape at equal intervals, and a connecting portion 21b that connects each of the claws 20 to each other on the base portion 21 side of the claw member 2. It is preferable to chamfer the top portion 20a so that when the top portion 20a engages with the string R, the string R is not cracked.

[0014] [Inclination angle θ2 of claw 20 and connecting portion 21b] Figure 3 shows the state after the claw 20 has been raised, where (a) is a plan view, (b) is a side view, and (c) is a bottom view. Figure 4 is a partially enlarged view of the claw 20 to explain the relationship between the inclination angle of the claw 20 and the outer diameter of the claw member 2. The claws 20 are connected in an annular shape by a bridge-shaped connecting portion 21. As shown in Fig. 4, in this embodiment, the center line G of the connecting portion 21b is located a distance F from the annular outer diameter line L (shown by a two-dot chain line, which is also the line indicating the maximum outer diameter of the claw member 2) connecting the base portions 21 toward the apex 20a, and recesses 21a are formed between two adjacent claws 20 and the connecting portion 21b.

[0015] As shown in FIG. 3, the claw member 2 is formed by erecting each of the claws 20 from the punching member for the claw member 2 shown in FIG. In FIG. 3, the symbol θ2 denotes the inclination angle formed between the claw 20 and the axis C passing through the center of the claw member 2 after standing. By raising the claw 20 to the inclination angle θ2, the outer diameter D4 of the disc-shaped claw member 2 shown in FIG. 2 becomes the outer diameter D5 shown in FIG. 3(a), but the size of the outer diameter D5 depends on the position of the center line G (see FIG. 4) of the connecting portion 21b. That is, when the claws 20 are raised, each of the claws 20 rotates together with the connecting portion 21b around the center line G as a fulcrum, and therefore, if the distance F is greater than 0, the outer diameter D5 changes in size by an amount corresponding to the distance F depending on the size of the inclination angle θ2. FIG. 4 shows the relationship between the change in the outer diameter of the claw member 2 and the change in the inclination angle of the claw 20 when the distance F>0. Symbol (0) indicates the position of the top 20a of the claw 20 in the initial state, and it is the reference position of the top 20a at the inclination angle θ2. Symbol (i) indicates the position of the top 20a when the inclination angle is larger than the inclination angle θ2 in the initial state, and it corresponds to the position when the inclination angle of the claw 20 is set to θ1 (>θ2) by the inclined surface 14. Symbol (ii) indicates the position of the top 20a of the claw 20 when the inclination angle is smaller than the inclination angle θ2 in the initial state (when the claw 20 is erected), and it corresponds to the position when the inclination angle is approximately 0. When the claw 20 is tilted inward (the inclination angle is increased) from the initial position (0), the position of the top 20a moves to (i), and the outer diameter D5 expands to the outer diameter D52. Conversely, when the claw 20 is raised (the inclination angle is decreased) from the initial position (0), the position of the top 20a moves from the initial position (0) to (ii), and the outer diameter D5 contracts to the outer diameter D51.

[0016] Therefore, even when the inner diameter D2 of the opening 12 of the coupler body 1 (see Fig. 1(b)) is smaller than the reference outer diameter D5 when the claw 20 is erected to the inclination angle θ2 (D2 < D5), by further erecting the claw 20 from the inclination angle θ2 (erecting it to the position of (ii) in Fig. 4), the outer diameter D5 can be contracted to the size of the inner diameter D2 of the opening 12 (D2 = D51), and the claw member 2 can be inserted into the opening 12. When the size of the opening 12 is made smaller than the initial outer diameter D5 of the claw member 2, the inner diameter D2 of the opening 12 should preferably be the same as the outer diameter D51 when the claw member 2 is contracted the most. Also, even when the inner diameter D2 of the opening 12 is the same as the outer diameter D5 (D2 = D5), when the claw member 2 is fitted into the claw member fitting groove 13, the claw 20 is forcibly tilted to the inclination angle θ1 (>θ2) by the inclined surface 14, and the outer diameter D5 expands to the outer diameter D52 (>D2), so the claw member 2 does not easily escape from the claw member fitting groove 13 to the opening 12. In the case where the inner diameter D2 of the opening 12 is the same as the outer diameter D5 of the claw member 2 (D2 = D5), in order to fit the claw member 2 into the claw member fitting groove 13, it is necessary to forcibly tilt the claw 20 by tilting means such as the inclined surface 14 and expand the outer diameter D5 of the claw member 2 to, for example, the outer diameter D52 shown in FIG. 4. Therefore, in such a case, the inner diameter D1 of the string insertion hole 11 is made smaller than the inner diameter D2 of the opening 12 (D1 < D2) so that the claw 20 abuts against the inclined surface 14, or tilting means composed of convex portions or ridges are provided on the inner peripheral surface of the string insertion hole 11, and the claw 20 is made to abut against these convex portions or ridges to forcibly tilt the claw 20.

[0017] In addition, when a pulling force acts on the claw member 2 via the string body R, as shown in FIG. 6(d), the claw 20 tilts inward, and the outer diameter D5 of the claw member 2 expands within the claw member fitting groove 13. Therefore, the base portion 21 of the claw member 2 enters deep into the claw member fitting groove 13, and the fitting strength of the two members increases. Therefore, the inner diameter D2 of the opening 12 may be the same as the outer diameter D5 of the claw member 2 in the initial state as described above (D2 = D5), or may be slightly smaller (for example, D2 = D51), but in order to prevent the claw member 2 from escaping more easily from the claw member fitting groove 13, it is preferable that the inner diameter D2 of the opening 12 is slightly smaller than the outer diameter D5 (for example, D2 = D51).

[0018] The outer diameter D4 and the outer diameter D5 are determined by the material of the metal plate which is the material of the claw member 2, the plate thickness t, the position of the connecting portion 21b (depending on the position of the center line G (dimension F)), the length of the connecting portion 21b (depending on the number of claws 20 and the apex angle α of the top portion 20a), and the width f (depending on the depth of the concave portion 21a), and each is determined so as to satisfy the above requirements. The standard of the inclination angle θ2 of the claw 20 after standing is approximately 7.5° to 12.5°, but it should not exceed the inclination angle θ1 of the inclined surface 14 (θ1 > θ2).

[0019] [Assembly of the Connector] The procedure for assembling the connector by fitting the claw member 2 into the connector main body 1 having the above configuration will be described with reference to Figures 5 and 6. In the following description, it is assumed that the inner diameter D2 of the opening 12 is slightly smaller than the outer diameter D5 of the claw member 2 (D2 = D51). FIG. 5 is a diagram showing the procedure for fitting the claw member 2 into the connector main body 1 having the above-described configuration and inserting the string R into the string insertion hole 11 to connect them. FIG. 6 is a diagram showing the deformation of the claw member 2 when fitting the claw member 2 into the connector main body 1, where (a) is a side view showing the shape of the claw member 2 before fitting, (b) is a side view showing the shape of the claw member 2 after fitting, (c) is a partially enlarged side view showing the relationship between the claw 20 and the inclined surface 14 when the claw member 2 is fitted into the claw member fitting groove 13 of the connector main body 1, and (d) is a further enlarged view of (c).

[0020] As shown in Fig. 5(a), the claw members 2 are arranged facing the bottom surface 10a of the trunk portion 10 of the connecting device main body 1. The initial shape of the claw members 2 at this time is as shown in Fig. 6(a). In the illustrated example, the inner diameter D2 of the opening 12 is slightly smaller than the outer diameter D5 of the claw member 2 in the initial state (D2 = D51). Therefore, when the claw member 2 is inserted into such a small-diameter opening 12 from the direction of axis C, the claw member 2 stands up and is pushed into the opening 12 while reducing its diameter to outer diameter D51, as shown in FIG. 5(b). By further pressing the claw member 2 in the direction of axis C within the opening 12, the claw member 2 moves within the opening 12 toward the claw member fitting groove 13. When the base portion 21 overcomes the stepped portion 13a, the reduced diameter claw member 2 elastically returns to its original diameter (D5) and is fitted into the claw member fitting groove 13. At this time, the claw 20 abuts against the inclined surface 14, restricting its inclination at an inclination angle θ1. If the inclination angle θ1 is made larger than the initial inclination angle θ2 of the claw 20, the outer diameter of the claw member 2 will be expanded from the initial outer diameter D5 (expanded outer diameter D52), and the claw member 2 will be more firmly fitted into the claw member fitting groove 13. Through the above procedure, the claw member 2 is positioned and fixed within the string insertion hole 11 of the connecting device main body 1, as shown in Figure 5(c). When the claw 20 abuts against the inclined surface 14, the inclination angle of the claw 20 becomes equal to the inclination angle θ1 of the inclined surface 14, and as shown in Figure 6(c), the top 20a of the claw 20 protrudes radially inward from the tip of the inclined surface 14 into the string insertion hole 11.

[0021] In this state, when the tip of the string R is inserted into the string insertion hole 11 through the opening 12, the tip of the string R engages with the top 20a of the claw 20 and is inserted all the way into the string insertion hole 11. By pulling the string R slightly in the direction of removing it from the opening 12, the top 20a of the claw 20 is hooked around the string R, thereby firmly connecting the string R to the connector. 6(d), it is preferable to form a gap k between the base portion 21 of the claw 20 and the inner peripheral surface of the claw member fitting groove 13. That is, the inner diameter D3 of the claw member fitting groove 13 is formed larger than the outer diameter D52 (see FIG. 4) of the claw member 2 when the inclination angle of the claw 2 is θ1, so that the gap k is secured between the base portion 21 of the claw 20 and the inner peripheral surface of the claw member fitting groove 13.

[0022] Without this gap k, the base 21 of the claw 20 would come into contact with the inner circumferential surface of the claw member fitting groove 13, hindering the rotation of the claw member 2 and making it difficult to untwist the string R. By ensuring the gap k, the claw member 2 that is hooked onto the string R after the string R is inserted into the string insertion hole 11 can easily rotate within the claw member fitting groove 13, and the rotation of the claw member 2 can untwist the string R. Furthermore, this gap k allows deformation of the claw 20 in the tilting direction when a tensile force acts on the string R. When the claw 20 tilts, the top 20a of the claw 20 moves in the radially reducing direction and bites deeper into the string R. This has the effect of improving the fastening force on the string R. On the other hand, if the gap k is too large, the claws 20 will turn over when the string R is pulled strongly, and even if the gap k is within a range where the claws 20 do not turn over, the string R will tear as the claws 20 dig in, which will actually reduce the fastening force. Therefore, it is preferable to select the optimal gap k within a range where the fastening force is maximized through experiments, etc.

[0023] Although the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments. For example, in the above description, the case where there are eight claws 20 has been described, but the number of claws 20 is not limited to this number. Furthermore, the inner diameter D2 of the opening 12 is smaller than the inner diameter D3 of the claw member fitting groove 13 and may be larger than the initial outer diameter D5 (see FIG. 4) of the claw member 2 as long as it is within a range in which the base portion 21 of the claw member 2 engages with the claw member fitting groove 13 inside the stepped portion 13a. However, in order to prevent the claw member 2 from easily slipping out of the claw member fitting groove 13, the inner diameter D2 is made smaller than the outer diameter D52 (see FIG. 4) of the claw member 2 when the claw 20 is tilted at an inclination angle θ1. Furthermore, in the above description, the continuous annular claw member 2 has been described as an example, but the connecting portion 21b or the claw 20 may have a notch formed in a part thereof. [Brief explanation of the drawings]

[0024] [Figure 1] 1A is a side view of a portion of a connector body constituting the connector of the present invention; FIG. 1B is a bottom view of the portion; and FIG. 1C is an enlarged view of a portion of FIG. [Figure 2] 1A and 1B are diagrams showing one embodiment of the claw member constituting the connector of the present invention, illustrating the state of the punched flat plate before the claws are raised, with (a) being a plan view and (b) being a side view. [Figure 3] 1A to 1C are diagrams showing one embodiment of the claw member that constitutes the connector of the present invention, in which (a) is a plan view, (b) is a side view, and (c) is a bottom view of the state after the claw has been raised. [Figure 4] 10 is a partially enlarged side view illustrating the relationship between the change in the outer diameter of the claw member and the change in the inclination angle of the claw. FIG. [Figure 5] 10A and 10B are diagrams showing a procedure for fitting the claw member to the connector body and inserting the string into the string insertion hole to connect the connector body. [Figure 6]10A and 10B are diagrams showing how the claw member deforms when it is fitted into the connector body, where (a) is a side view showing the shape of the claw member before fitting, (b) is a side view showing the shape of the claw member after fitting, (c) is a partially enlarged side view showing the relationship between the claw and the inclined surface when the claw member is fitted into the claw member fitting groove of the connector body, and (d) is a further enlarged view of (c). [Explanation of symbols]

[0025] 1 Connector body 10. Torso 10a bottom 11 String insertion hole 12 Opening 13 Claw member fitting groove 13a,13b Stepped part 14 Slope 2 Claw member 20 nails 20a top 21 Base 21a Recess 21b Connection part C axis D1 Inner diameter of string insertion hole D2 Inner diameter of opening D3 Inner diameter of claw fitting groove D4 Outer diameter of the jaw before lifting D5 Outer diameter of the jaw after lifting (outer diameter of the jaw in the initial state) D51 The outer diameter of the claw member when the diameter is reduced by raising the claw from the initial state D52 The outer diameter of the jaw when the jaw is tilted from the initial state to expand the diameter f Width of the connecting part F Distance from the bottom of the claw to the center line of the connecting part G Center line of connecting part H Nail length L Outer diameter of the jaw s Width of the inclined surface t thickness of metal plate θ1 Inclination angle of inclined surface θ2 Initial inclination angle of the claw

Claims

1. A connector for connecting strings, a claw member having a plurality of claws connected in an annular shape and hooked around the string; a connecting portion that connects the claws in an annular shape; a connector body having a string insertion hole into which the claw member is fitted and into which the string is inserted, The string insertion hole is provided with an opening for introducing the string, a claw member fitting groove that is continuous with the opening and has a diameter larger than that of the opening, and into which the claw member is fitted, and a tilting means that is formed on the inner side of the string insertion hole relative to the claw member fitting groove and that comes into contact with the claw of the claw member to tilt the claw in a direction in which the top of the claw reduces in diameter, The connecting portion of the claw member is formed so that the diameter of the claw member decreases or increases in accordance with a change in the inclination of the claw. A string connector characterized by the above.

2. The string connector according to claim 1, characterized in that the connecting portion is formed closer to the top than the bottom of the claw member so that a recess is formed between the connecting portion and the bottom of the claw member.

3. 3. The string connector according to claim 1, wherein the inner diameter of the opening is the same as the outer diameter of the claw member when the claw of the claw member is raised from the initial state.

4. A string connector according to any one of claims 1 to 3, characterized in that a gap of a predetermined size is formed between the inner peripheral surface of the claw member fitting groove and the base of the claw member fitted into the claw member fitting groove.

5. 5. The cord connector according to claim 1, wherein the tilting means is an inclined surface formed continuously from the hook member fitting groove.

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