WO2013024679A1

WO2013024679A1 - Cord lock

Info

Publication number: WO2013024679A1
Application number: PCT/JP2012/069026
Authority: WO
Inventors: 大陽石井
Original assignee: 株式会社ニフコ
Priority date: 2011-08-12
Filing date: 2012-07-26
Publication date: 2013-02-21
Also published as: JP2013039176A

Abstract

The outside part has an inner wall for attaching to a string-shaped member between the first opening and the second opening, and also has a guiding groove located inward from the inner wall. The inside part is connected to the base part in the side having the second opening, and is extended toward the side having the first opening, and the inside part has a moveable arm allowing the string-shaped member to pass between the inner wall for attaching and a free end positioned in the side having the first opening. The moveable arm is provided with a part to be guided, which is guided to the guiding groove, and a pawl protruding toward the inner wall for attaching, and into the string-shaped member. As the inside part is moved from a predetermined position to the side having the second opening by the action of tension pulling the string-shaped member out of the second opening, the guiding groove and the part to be guided cause the moveable arm to move so as to gradually reduce the distance between the free end and the inner wall for attaching.

Description

Code lock

The present invention is used to squeeze or tighten such a part in various articles that are fastened to an arbitrary position of the string-like body and are squeezed or tightened by the string-like body. Related to improved code lock.

There is a cord lock (cord fastener) consisting of an outer part (housing) through which a string is passed and an inner part (locking element) built in the outer part. (See Patent Document 1) The inner part has a head that is biased in the direction along the string insertion direction, and the string is held between the head and the slope formed in the outer part by the biasing. It is supposed to be.

U.S. Pat. No. 4,878,269

The main problem to be solved by the present invention is to further improve the function of this type of code lock. More specifically, according to the present invention, firstly, when a tension in one direction is applied to the string-like body passed through the cord lock, the fastening force to the string-like body is reasonably increased. Secondly, when a tension in the other direction is applied to the string-like body passed through the cord lock, the object is to reasonably weaken the fastening force to the string-like body.

In order to achieve the first object, according to the present invention, the cord lock has a first opening and a second opening opposite to the cord lock, and a string-like body is internally provided through both openings. The outer parts that pass through,
An inner part which is combined with the outer part so as to be movable along the passing direction of the string-like body,
The outer part has an inner wall for fastening the string-like body between the first opening and the second opening, and extends in the passing direction of the string-like body inward of the inner wall for fastening. Has a groove,
The inner part is connected to the base on the second opening side and extends to the first opening side, and includes a free end positioned on the first opening side and the fastening inner wall. A movable arm portion for passing the string-like body therebetween,
The movable arm portion includes a guided portion guided by the guide groove, and a claw portion protruding from the free end toward the fastening inner wall and protruding from the string-like body,
As the inner part approaches the second opening side from a predetermined position by the action of the tension in the direction pulled out from the second opening part to the string-like body by the guide groove and the guided part, the free part The movable arm portion that gradually decreases the distance between the end and the inner wall for fastening is configured to be movable.

According to this configuration, when a tension is applied to the string-like body in the direction of being pulled out from the second opening, the space between the inner wall for fastening the string-like body and the free end of the movable arm portion Can be strengthened through movement of the inner part toward the second opening, and the string-like body can be effectively prevented from coming out in this direction.

In such a cord lock, the guide groove and the guided portion further cause the inner part to approach the first opening side from the predetermined position by the action of the tension in the direction in which the string-like body is pulled out from the first opening. Thus, the second object can be achieved by moving the movable arm portion that gradually increases the distance between the free end and the fastening inner wall. That is, when tension is applied to the string-like body in the direction pulled out from the first opening, the clamped state between the inner wall for fastening the string-like body and the free end of the movable arm portion Can be weakened through movement of the inner part toward the first opening, and the string-like body can be pulled out in this direction by a desired length.

According to the present invention, when a tension directed in one direction is applied to the string-like body passed through the cord lock, the fastening force of the cord lock to the string-like body can be increased reasonably.

FIG. 1 is a perspective view showing a state in which an outer part and an inner part constituting a cord lock according to an embodiment of the present invention are separated. FIG. 2 is a cross-sectional view showing the outer parts of the cord lock according to the embodiment in a broken state. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a cross-sectional view showing the use state of the cord lock according to the embodiment with the outer part broken, and the inner part is in the reference position. FIG. 5 is a cross-sectional view showing the use state of the cord lock according to the embodiment with the outer part broken, in a state where the string-like body is pulled from the state of FIG. 4 in the direction of being pulled out from the second opening. Is shown. FIG. 6 is a cross-sectional view showing the use state of the cord lock according to the embodiment with the outer part broken, in a state where the string-like body is pulled from the state of FIG. 4 in the direction of being pulled out from the first opening. Is shown. FIG. 7 is a cross-sectional view showing the use state of the cord lock according to the embodiment with the outer part broken, and shows a state in which the inner part is pulled outward from the first opening from the state of FIG. Show. FIG. 8 is a cross-sectional view showing the use state of the cord lock according to the embodiment with the outer part broken, and shows a state in which the inner part is further pulled outward from the state of FIG. FIG. 9 is a plan view of the outer part. FIG. 10 is a bottom view of the outer part. FIG. 11 is a front view of the outer part. 12 is a cross-sectional view taken along line BB in FIG. FIG. 13 is a side view of the outer part. 14 is a cross-sectional view taken along the line CC in FIG. 15 is a cross-sectional view taken along the line DD in FIG. FIG. 16 is a front view of the inner part. FIG. 17 is a plan view of the inner part. FIG. 18 is a bottom view of the inner part. FIG. 19 is a side view of the inner part.

Hereinafter, typical embodiments of the present invention will be described with reference to FIGS. The cord lock according to this embodiment can be fastened to an arbitrary position of the string-like body Cd, and only when the string-like body Cd is pulled in one direction from this fastened state. It can be adjusted, and the fastening state can be completely released by operating an inner part M (described later) constituting the cord lock.

If such a cord-like body Cd can be fastened with such a cord lock, its shape (round cord, flat cord, etc.), material and structure (knitted cord, rubber cord, synthetic resin cord, etc.) Is not questioned. Such a cord lock is typically fastened to the string-like body Cd in various articles having portions to be squeezed or tightened by the string-like body Cd, and the fastening position thereof is changed. It is used to squeeze or loosen such a part.

The cord lock is composed of an outer part F and an inner part M combined with the outer part F.

The outer part F has a first opening 1 and a second opening 2 at a position opposite to the first opening 1, and allows the string-like body Cd to pass through both the

openings

1 and 2.

In the illustrated example, the outer part F has a flat cylindrical shape. That is, the outer part F has a wide front plate portion 3 and a back plate portion 4, and left and right

side plate portions

5 and 5.

The outer plate 3 and the back plate 4 have the same outer shape. Further, the front plate portion 3 and the back plate portion 4 both have a shape on the right side with respect to the left side shape with a virtual center line x that bisects the left and right direction, and the center line x as an axis of symmetry. The shape is line symmetric. (FIGS. 14 and 15)

The side plate portion 5 includes a virtual first line segment y1 orthogonal to the center line x and a virtual second line segment that is also orthogonal to the center line x with an interval between the first line segment y1. It is formed between y2. In the outer part F, a location on the first line segment y1 is the first opening 1 and a location on the second line segment y2 is the second opening 2. Both the left and right

side plate portions

5 and 5 are inclined so as to gradually approach the center line x as they go from the first opening 1 to the second opening 2. Thereby, in the example of illustration, the 2nd opening part 2 makes the dimension of the left-right direction smaller than the 1st opening part 1. FIG.

The front plate portion 3 and the back plate portion 4 both have a first overhang portion 6 projecting outward from the first line segment y1 and a second overhang portion 7 projecting outward from the second line segment y2. And. A partition portion 8 is installed between the top end of the second overhang portion 7 of the front plate portion 3 and the top end of the second overhang portion 7 of the back plate portion 4, and the second opening portion 2 side is this partition portion. 8 is divided into left and right.

Further, the outer part F has an inner wall 5 a for fastening to the string-like body Cd between the first opening 1 and the second opening 2. In the illustrated example, the inner surfaces of the left and right

side plate portions

5 and 5 function as the fastening inner walls 5a, respectively.

At the same time, the outer part F has a guide groove 9 extending in the passing direction of the string-like body Cd inside the fastening inner wall 5a. In the illustrated example, the guide groove 9 is configured as a bottomed groove formed in an engraved shape on the inner surface of the front plate portion 3 on the left and right sides of the center line x. Yes. Further, in the back plate portion 4, the guide groove 9 is configured as a watermark groove penetrating the inner surface portion inside and outside on the left and right sides of the center line x. However, the guide groove 9 may be formed by a watermark groove in both the front plate portion 3 and the back plate portion 4, and bottomed in both the front plate portion 3 and the back plate portion 4. It may be formed by a groove.

The guide groove 9 is long in the passing direction of the string-like body Cd, and has a width for accommodating a guided portion 11h of the inner part M described later with play. The guide groove 9 has a groove inner end 9a positioned on a virtual third line segment y3 perpendicular to the center line x that bisects the first line segment y1 and the second line segment y2. It is formed so as to reach the first overhanging portion 6 beyond the first line segment y1 and to position the outer end of the groove in the first overhanging portion 6. (FIGS. 14 and 15)

A groove wall 9c located on the center line x side in the guide groove 9 is outside the third line segment y3 and the first line segment y1 and is a virtual fourth line segment y4 orthogonal to the center line x. Between the center line x and the fourth line segment y4 as the distance from the center line x gradually decreases. (FIGS. 14 and 15)

In addition, the groove wall 9d positioned on the side of the fastening inner wall 5a in the guide groove 9 has a first line between the third line segment y3 and a portion slightly outside the first line segment y1. As it approaches the minute y1 side, the distance from the center line x gradually decreases. (FIGS. 14 and 15)

In the illustrated example, in the back plate portion 4, the guide groove 9 has a groove outer end 9b positioned between the edge portion of the first overhang portion 6 and the fourth line segment y4. In addition, on the inner surface of the back plate portion 4, between the groove edge located on the side of the inner wall 5 a for fastening of the guide groove 9 and the edge portion of the first overhang portion 6 on the left and right sides of the center line x, respectively. A leading introduction groove 4a is formed.

On the other hand, in the illustrated example, in the front plate portion 3, the guide groove 9 continues from the position of the fourth line segment y4 to the edge portion of the first overhang portion 6, and the groove outer end 9b is opened at this edge portion. ing.

On the other hand, the inner part M is combined with the outer part F so as to be movable along the passing direction of the string-like body Cd.

The inner part M includes a base 10 and a free end 11a that is connected to the base 10 on the second opening 2 side and extends to the first opening 1 side, and is positioned on the first opening 1 side. A movable arm portion 11 through which the string-like body Cd passes is provided between the fastening inner wall 5a. At the same time, the movable arm 11 protrudes from the free end 11a toward the fastening inner wall 5a and is guided by the string-like body Cd. A claw portion 11c is provided.

In the illustrated example, the inner part M includes a base 10 having an axial shape, a movable arm 11 protruding leftward from one end 10a of the base 10, and a movable arm 11 protruding rightward from one end 10a of the base 10. I have. Each of the left and right

movable arm portions

11 and 11 has its base end so that its free end 11a is directed toward the other end 10b side of the base portion 10 and the distance from the base portion 10 is increased as it approaches this free end 11a. 10 protrudes diagonally from one end 10a. Further, in the illustrated example, the left and right

movable arm portions

11 and 11 have their base ends 11b integrated with one end 10a of the base portion 10, respectively, and the left and right

movable arm portions

11 and 11 respectively have the base end 11b. Is moved by elastic deformation so that the distance between the free end 11a and the base 10 is increased or decreased. With respect to the left movable arm portion 11, the right movable arm portion 11 is configured to have a line-symmetric shape with respect to the base portion 10.

The inner part M has the one end 10a of the base part 10 in the outer part F before the first opening 1 of the outer part F, and the left movable arm part 11 has a left inner wall for fastening. 5a, and the right movable arm portion 11 is accommodated in a direction facing the right fastening inner wall 5a.

Each of the left and right

movable arm portions

11 and 11 includes the claw portion 11c at a position facing the fastening inner wall 5a at the free end 11a. In the illustrated example, three such claw portions 11 c are provided with a gap between the claw portions 11 c adjacent to each other in the length direction of the movable arm portion 11. Each claw portion 11c has a width side surface 11d facing the inner surface of the front plate portion 3 of the outer part F, a width side surface 11d facing the inner surface of the back plate portion 4, and a thickness orthogonal to both width side surfaces 11d and 11d. And a side surface 11e. In the claw portion 11c, the thickness side surface 11e directed to the first opening 1 side and the thickness side surface 11e directed to the second opening 2 side cross each other at an acute angle so that the toe of the claw portion 11c It is formed. A thickness side surface 11e directed to the first opening 1 side in the claw portion 11c is orthogonal to the length direction of the string-like body Cd passing between the free end 11a and the fastening inner wall 5a. On the other hand, the thickness side surface 11e directed to the second opening 2 side is inclined to form the acute angle with the thickness side surface 11e directed to the first opening 1 side. The surface is 11g.

Further, in the illustrated example, guided portions 11 h are respectively formed at a location facing the front plate portion 3 and a location facing the back plate portion 4 in the free end 11 a of the movable arm portion 11. In the illustrated example, the guided portion 11h has a short cylindrical shape.

In the illustrated example, when the inner part M is accommodated in the outer part F as described above, the guide grooves 9 formed in the front plate portion 3 on the left and right sides of the center line x of the outer part F, respectively. The guided portion 11h formed on this side enters, and the guided portion 11h formed on this side enters the guide groove 9 formed on the back plate portion 4, whereby the outer part F and the inner part M Are to be combined. The inner part M always elastically deforms the left and right

movable arm parts

11 and 11 inwardly with the guided part 11h in the guide groove 9 (FIG. 2), and the center line x of the outer part F In this state, the base 10 is moved along the center line x.

In the illustrated example, the distance between the tip of the guided portion 11 h on the front plate portion 3 side and the tip of the guided portion 11 h on the back plate portion 4 side is the groove bottom of the guide groove 9 of the front plate portion 3. And the distance between the bottom of the back plate portion 4 and the groove bottom of the introduction groove 4a. Thus, in the illustrated example, when the inner part M is accommodated in the outer part F as described above, the first overhang part 6 of the outer part F is mainly used until the guided part 11h passes through the introduction groove 4a. It is designed to allow this accommodation by bending outward. And the state where the guided part 11h does not come out from the guide groove 9 of the back plate part 4 is created by bending back of the first projecting part 6 when the guided groove 9 passes through the introduction groove 4a. F and the inner part M are combined so as not to be separated. (Figure 3)

In this embodiment, the guide groove 9 and the guided portion 11h cause the tension from the second opening 2 to be pulled out from the second opening 2 with respect to the string-like body Cd. As the inner part M approaches the two openings 2 side, the movable arm portion 11 that gradually decreases the distance between the free end 11a and the fastening inner wall 5a is made movable.

In the example shown in the figure, a guided portion 11h is provided at a position in the middle of the length direction of the guide groove 9 between the inner wall 5a for fastening the outer part F and the free end 11a of the movable arm portion 11 of the inner part M. When the string-like body Cd having a thickness larger than the distance between the inner wall 5a for fastening and the claw tip of the claw portion 11c is passed at the predetermined position, the inner part M is at the predetermined position. The claw portion 11c bites into the string-like body Cd, and the cord lock is fastened to the string-like body Cd. (FIG. 4 / reference state) From this state, when the tension in the direction pulled out from the second opening 2 is applied to the string-like body Cd, more specifically, the string-like form with the outer part F fixed. When a pulling force is applied to a portion pulled out from the second opening 2 in the body Cd, the inner part M that bites the claw portion 11c into the string-like body Cd is moved to the second opening 2 side, The guided portion 11h is pressed against the groove wall 9c which is moved in a direction to move the free end 11a away from the fastening inner wall 5a and is located on the center line x side in the guide groove 9. Here, the groove wall 9c positioned on the center line x side is between the third line segment y3 and a virtual fourth line segment y4 that is outside the first line segment y1 and orthogonal to the center line x. In this case, the movable arm portion 11 is inclined so as to gradually increase the distance from the center line x as it approaches the third line segment y3. Is bent away from the center line x, and the distance between the free end 11a and the inner wall 5a for fastening is gradually reduced, so that the claw portion 11c is more firmly projected on the string-like body Cd.

Thereby, in this embodiment, when the tension | tensile_strength in the direction pulled out from said 2nd opening part 2 is acted with respect to the said string-like body Cd, the inner wall 5a for fastening with respect to this string-like body Cd And the free end 11a of the movable arm portion 11 can be strengthened by moving the inner part M toward the second opening 2 side, and the string-like body Cd can be effectively pulled out in this direction. It is supposed to stop. (Figure 5 / locked state)

In this embodiment, the guide groove 9 and the guided portion 11h cause the first opening portion from a predetermined position by the action of the tension in the direction of being pulled out from the first opening portion 1 with respect to the string-like body Cd. As the inner part M approaches the one side, the movable arm portion 11 that gradually increases the distance between the free end 11a and the fastening inner wall 5a is made movable.

In the illustrated example, more specifically, when the tension in the direction pulled out from the first opening 1 is applied to the string-like body Cd from the state in which the inner part M is in the predetermined position (FIG. 4 / reference state). Is an inner part that causes the claw portion 11c to bite into the string-like body Cd when a pulling force is applied to a portion pulled out from the first opening 1 in the string-like body Cd with the outer part F fixed. While M moves to the first opening 1 side, the guided portion 11h is pressed against the groove wall 9d positioned on the inner wall 5a for fastening in the guide groove 9. Here, the groove wall 9d positioned on the side of the fastening inner wall 5a is located on the first line segment y1 side between the third line segment y3 and a portion slightly outside the first line segment y1. Since it is inclined so as to gradually decrease the distance from the center line x as it approaches, the movable arm portion 11 approaches the center line x as the inner part M approaches the first opening 1. The distance between the free end 11a and the fastening inner wall 5a is gradually increased, so that the thrusting force of the claw portion 11c on the string-like body Cd is weakened. Further, in the illustrated example, the thickness side surface 11e directed to the second opening 2 side in the claw portion 11c is the inclined surface 11g. When the tension in the direction of being pulled out is applied, the claw portion 11c is easily pulled out of the string-like body Cd due to the inclination of the inclined surface 11g.

Thereby, in this embodiment, when the tension | tensile_strength in the direction pulled out from said 1st opening part 1 is acted with respect to the said string-like body Cd, the inner wall 5a for fastening with respect to this string-like body Cd And the free end 11a of the movable arm portion 11 can be weakened through movement of the inner part M toward the first opening 1 side, and the string-like body Cd can have a desired length in this direction. It can be pulled out. (Fig. 6 / Adjustment state)

In this embodiment, the cord lock has the inner wall 5a for fastening the outer part F on the right and left sides, and the inner part M has the movable arm parts 11 on the left and right sides of the base part 10, respectively. Between the left fastening inner wall 5a and the free end 11a of the left movable arm portion 11 and between the right fastening inner wall 5a and the free end 11a of the right movable arm portion 11, respectively. The string-like body Cd is passed therethrough. As a result, in the cord lock according to this embodiment, it is possible to simultaneously perform the fastening to the two string-like bodies Cd passing through the outer part F.

Further, in this embodiment, a knob portion 12 is formed on the base portion 10 of the inner part M so as to protrude outward from the first opening 1 of the outer part F. In the illustrated example, the knob 12 has a substantially isosceles triangular shape in a front view. The other end of the base portion 10 is integrally connected to a top portion 12 a between two side portions that are equal sides of the knob portion 12. And in the said reference | standard state and a locked state, the base part 12b of the knob | pick part 12 is located outside the edge part of the 1st overhang | projection part 6 of the outside part F. As shown in FIG. Thereby, in this embodiment, the clamped state with respect to the string-like body Cd, that is, the clamped state between the fastening inner wall 5a and the free end 11a of the

movable arm portion

11, 12 can be used to move the inner part M to the first opening 1 side. (Fig. 7 / Unlocked state)

In this embodiment, the groove located on the side of the fastening inner wall 5a is located outside the fourth line segment y4 in the guide groove 9 of the back plate portion 4. The wall 9d is closer to the center line x, and when the knob part 12 is pulled to move the inner part M from the unlocked state to a position where the knob part 12 comes out of the outer part F, the left and right movable arm parts 11 are moved. , 11 is further bent in a direction to bring the free end 11a closer to the center line x, and there is a gap through which the string-like body Cd can pass without resistance between the free end 11a and the fastening inner wall 5a. It is supposed to be formed. (FIG. 8) The guide groove 9 of the front plate portion 3 has a shape that does not hinder the operation of the movable arm portion 11. (Fig. 14)

Further, in this embodiment, the guided portion 11h is formed at the free end 11a of the movable arm portion 11 of the inner part M. Accordingly, in this embodiment, the movable arm portion 11 can be appropriately moved as a whole in the intended direction by the guide of the guide groove 9.

Giving this characteristic to the portion to be provided with the elastic deformation characteristic in the cord lock described above can be easily realized by forming the outer part F and the inner part M as a plastic molded product.
The entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2011-176695 filed on August 12, 2011 are cited herein as disclosure of the specification of the present invention. Incorporated.

Claims

An outer part having a first opening and a second opening opposite to the first opening, and allowing the string-like body to pass through both openings;
An inner part which is combined with the outer part so as to be movable along the passing direction of the string-like body,
The outer part has an inner wall for fastening the string-like body between the first opening and the second opening, and extends in the passing direction of the string-like body inward of the inner wall for fastening. Has a groove,
The inner part is connected to the base on the second opening side and extends to the first opening side, and includes a free end positioned on the first opening side and the fastening inner wall. A movable arm portion for passing the string-like body therebetween,
The movable arm portion includes a guided portion guided by the guide groove, and a claw portion protruding from the free end toward the fastening inner wall and protruding from the string-like body,
As the inner part approaches the second opening side from a predetermined position by the action of the tension in the direction pulled out from the second opening part to the string-like body by the guide groove and the guided part, the free part A cord lock characterized in that the movable arm portion for gradually reducing the distance between an end and the fastening inner wall is movable.
For fastening with the free end as the inner part approaches the first opening side from the predetermined position by the action of the tension in the direction pulled out from the first opening to the string-like body by the guide groove and the guided part The cord lock according to claim 1, wherein the movable arm that gradually increases a distance between the inner wall and the inner wall is movable.
The outer parts have inner walls for fastening on the left and right sides, and the inner parts have movable arm parts on the left and right sides of the base, respectively, and the left inner wall for fastening and the free ends of the left movable arm parts The string-like body is configured to pass between the inner wall for fastening between the right side and the right side and the free end of the movable arm part on the right side, respectively. Code lock.
The cord lock according to any one of claims 1 to 3, wherein a knob portion protruding outward from the first opening of the outer part is formed at a base portion of the inner part.
The cord lock according to any one of claims 1 to 4, wherein the guided portion is formed at a free end of the movable arm portion of the inner part.