JP6360746B2 - Blind operation cord stop - Google Patents

Description

  The present invention relates to a blind operation cord stopper for connecting ends of a plurality of operation cords capable of opening and closing a shielding member suspended from a head box.

  Japanese Patent No. 3365053 discloses a blind operation cord stopper for connecting ends of a plurality of operation cords capable of opening and closing a shielding member suspended from a head box. What is disclosed therein is a plurality of coupling bodies that form a cylindrical shape by uniting each other, and a plurality of coupling bodies that are combined into a cylindrical shape and fitted to the outer peripheral surface of the plurality of coupling bodies. The stopper main body is configured to be held in a state of being held, and to fall off from the coupling body when a load of a certain level or more is applied outward in the radial direction or in the axial direction. The plurality of operation cords are connected to the end portions of the plurality of operation cords in a one-to-one correspondence, and the stopper body is connected to the other end of the auxiliary cord whose one end is connected to the bottom rail to raise the shielding material. This prevents the operation cord from hanging down.

  As a result, if a person or an object is caught on the operation cord and a load of a certain level or more is applied to the stopper body, the stopper body will fall off the connecting body, and the multiple connecting bodies will be separated before an accident occurs. People and things are caught in the door, and safety is secured.

Japanese Patent No. 3365053

  By the way, the operation cord stopper is in the raised position when the shielding material is most lowered, and is in the lowered position when the shielding material is most elevated. For this reason, depending on the state of the shielding material, the operation cord stopper may be above or below the position where the user can easily operate. Accordingly, when the operation code stopper is located above the position where the user can easily operate, and the auxiliary cord is located at a position where the user can easily operate, the user often operates with the auxiliary code. When the user operates with the auxiliary cord, a radially outward or axial load is applied to the stopper main body to which the auxiliary cord is connected, and when this load exceeds a certain level, the stopper main body falls off the connecting body. For this reason, there has been a problem that the operation cord stopper is disassembled and the lifting / lowering operation of the shielding material cannot be performed.

  Therefore, the present invention has been made in view of such problems, and the purpose of the present invention is to separate the connecting body and the stopper body when a person or an object is caught on the operation cord. Another object of the present invention is to provide a blind operating cord stopper capable of continuing the lifting and lowering operation of the shielding material without being separated by the force acting on the coupling body.

  In order to solve the above-described problems, according to the present invention, a blind operating cord stopper for connecting ends of a plurality of operating cords capable of opening and closing a shielding material suspended from a head box is accommodated. A stopper main body having a portion formed on a side surface, and a plurality of coupling bodies that are coupled to the operation cord and are engaged with the accommodating portion, respectively. When an upper restricting portion that restricts upward movement of the coupling body housed in the housing portion is formed and a force is applied to the operation cord in a direction in which the operation cords are separated from each other, the coupling body is A blind operating cord stopper is provided that is separated from the stopper body so as to tilt.

  According to such a configuration, when a force is applied to the operation cord in a direction in which the operation cords are separated from each other, the coupling body is separated from the stopper main body so as to tilt. For this reason, even if a person or an object is caught on the operation cord, the loop formed by the operation cord and the operation cord stopper is released and the catch is eliminated. Thereby, safety when a person or an object is caught on the operation cord can be secured.

  Further, the connection body and the stopper main body are not separated unless a force is applied to the operation code in a direction in which the operation codes are separated from each other. For this reason, a stopper main body and a connection body are not separated at the time of raising / lowering operation of a shielding material, but a shielding material can be operated continuously.

  Further, the downward force acting on the stopper main body also acts on the coupling body by the upper restricting portion of the stopper main body. Thereby, when a stopper main body descend | falls, it can prevent more reliably that a stopper main body and a coupling body will isolate | separate.

  In the present invention, the other end of the auxiliary cord whose one end is connected to the bottom rail may be connected to the stopper main body. As a result, when a downward pulling force acts on the stopper main body via the auxiliary cord, this force also acts on the connecting body by the upper restricting portion of the stopper main body, and the stopper main body and the connecting body descend integrally. To do. Thereby, the operation of the auxiliary cord can be continued without separating the stopper main body and the coupling body.

  The upper restricting portion may be formed with a notch through which the operation code is inserted. Thereby, even if there exists an upper control part in a stopper main body, a raising / lowering cord can be connected with a connection body.

  According to the present invention, when a person or an object is caught on the operation cord, the connecting body and the stopper main body are separated from each other. However, since the force acting on the connecting body does not separate from the stopper main body side, the safety is ensured. The raising / lowering operation of the shielding material can be continued. The other effects of the present invention will be clarified from the entire specification and drawings.

It is a front view which shows the whole structure of the blind which implemented the stopper for operation cords concerning 1st Embodiment. It is a perspective view of the operation cord stopper of the first embodiment. It is a front view of the operating cord stopper of the blind to which the operating cord and the auxiliary cord are attached. It is a perspective view which shows the state which isolate | separated the partial connection body in the operation cord stopper of 1st Embodiment. It is a perspective view which shows the state which attached the operation code and the auxiliary | assistant cord to the operation cord stopper of FIG. It is a top view of the operating cord stopper of the blind to which the operating cord and the auxiliary cord are attached. It is a bottom view of the operating cord stopper of the blind to which the operating cord and the auxiliary cord are attached. FIG. 6 is a plan view showing a state in which all of the coupling bodies are separated from the stopper main body so as to be tilted in the blind operation cord stopper to which the operation cord and the auxiliary cord are attached. FIG. 5 is a bottom view showing a state in which all of the coupling bodies are separated so as to be tilted from the stopper main body in the operation cord stopper to which the operation cord and the auxiliary cord are attached. It is AA sectional drawing of FIG. It is a front view corresponding to FIG. It is sectional drawing which shows the state which applied external force to the operation cord and has isolate | separated so that a connection body may incline from a fastener main body. It is a front view corresponding to FIG. It is sectional drawing which shows the state which the connection body isolate | separated from the fastener main body. It is a front view corresponding to FIG. It is a front view of the stopper for operation cords of a 2nd embodiment. It is a perspective view which shows the state which isolate | separated some connection bodies in the operation cord stopper of 2nd Embodiment. It is BB sectional drawing of FIG. It is sectional drawing which shows the state which applied external force to the operation cord and has isolate | separated so that a connection body may incline from a fastener main body.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

(First embodiment)
The blind operation cord stopper according to the first embodiment is for connecting ends of a plurality of operation cords capable of opening and closing a slat suspended from a head box. The blind operating cord stopper will be described with reference to FIGS.

  First, the overall configuration of the blind in which the operation cord stopper according to the first embodiment is implemented will be described. FIG. 1 is a front view showing the overall configuration of a blind in which the operation cord stopper according to the first embodiment is implemented.

  As shown in FIG. 1, the blind 100 is placed in alignment with the head box 110 that is fixed to a window frame (not shown), the ladder cord 120 that can be tilted from the head box 110, and the ladder cord 120. A plurality of slats 130 to be placed, a bottom rail 140 which is disposed below the lowermost slat 130 and to which the lower end of the ladder cord 120 is connected, and one end is connected to the bottom rail 140 and the other end is the head. Three operation cords 150 introduced into the box 110 and led out from one end of the head box 110 and capable of opening and closing the slats 130, and operation cord stoppers for connecting the other end portions of the three operation cords 150 to each other 160 and one end is connected to the operation cord stopper 160 and the other end is connected to the bottom rail 140. When the slat 130 is raised, the operation cord 150 is prevented from drooping, and when the slat 130 is lowered, the operation cord 150 or the operation cord stopper 160 is raised so that the operation portion cannot be reached. Auxiliary cord 170 that avoids the problem and an operation rod 180 that is provided at one end of the head box 110 and tilts the slat 130 by rotating. In the present embodiment, the number of operation codes 150 is three. However, the number of operation codes 150 is not limited thereto, and may be two or four or more depending on the size and design of the blinds.

  Hereinafter, the operation cord stopper 160 which is a characteristic component of the present embodiment will be described. Since other general components can be used, detailed description thereof is omitted.

(Operation cord stopper 160)
First, the overall configuration of the operation cord stopper 160 of the present embodiment will be described with reference to FIGS. 2 and 3. FIG. 2 is a perspective view of the operation cord stopper of the first embodiment, and FIG. 3 is a front view of the blind operation code stopper to which the operation cord and the auxiliary cord are attached.

  As shown in FIG. 2, the operation cord stopper 160 includes a stopper main body 161 and three coupling bodies 162 engaged with the stopper main body 161. The operation cord stopper 160 is configured to have a substantially cylindrical shape when the three coupling bodies 162 are engaged with the stopper body 161. Further, as shown in FIG. 3, three operation cords 150 and auxiliary cords 170 are connected to the operation cord stopper 160, respectively. In the present embodiment, the number of the coupling bodies 162 is three corresponding to the number of the operation codes 150. However, the number of the coupling bodies 162 may be the same as or more than the number of the operation codes 150.

  Next, each configuration of the operation cord stopper 160 will be described in detail with reference to FIGS. FIG. 4 is a perspective view showing a state where a part of the coupling body is separated in the operation cord stopper of the first embodiment. FIG. 5 is a perspective view showing a state where the operation cord and the auxiliary cord are attached to the operation cord stopper of FIG. 3. FIG. 6 is a plan view of the operation cord stopper to which the operation cord and the auxiliary cord are attached. FIG. 7 is a bottom view of the operation cord stopper of FIG. 6.

(Stopper body 161)
As shown in FIGS. 4 and 5, the stopper main body 161 has a generally cylindrical shape, and is formed in a cylindrical side portion to form a concave accommodating portion 161 a that accommodates the coupling body 162, and an accommodating portion 161 a. The upper restricting portion 161b that restricts the upward movement of the coupling body 162, the notch portion 161c that is formed in the upper restricting portion 161b and through which the operation cord 150 is inserted, and the upper restricting portion 161b are formed. The upper engaging portion 161d that engages with the connecting body 162, the lower restricting portion 161e that is formed in the lower portion of the accommodating portion 161a and restricts the downward movement of the connecting body 162, and the lower restricting portion 161e. A lower engagement portion 161f that engages with the coupling body 162 and a hollow portion 161g that holds one end of the auxiliary cord 170 are provided.

  The accommodating part 161a is a part formed in the concave shape in which the coupling body 162 is accommodated, and is formed in three places in the circumferential direction of the columnar side part of the stopper main body 161, respectively. In the present embodiment, as an example, a plurality of concave accommodating portions 161a are formed in accordance with the number of the coupling bodies 162. However, the present invention is not limited to this, and may be concave portions that are continuous in the circumferential direction.

  The upper restricting portion 161b is formed on the upper portion of each accommodating portion 161a, and each upper restricting portion 161b is formed of a part of the columnar upper portion of the stopper main body 161. The upper restricting portion 161b applies a force in a downward direction together with the stopper main body 161 to the connecting body 162 when a force in the downward direction is applied to the stopper main body 161.

  As shown in FIG. 6, the notch portion 161 c is formed to extend in the radial direction of the upper restricting portion 161 b closer to the center position in the circumferential direction of each upper restricting portion 161 b, and the operation cord 150 is inserted therethrough.

  The upper engaging portion 161d is a rectangular through hole formed on both sides of each notch portion 161c of the upper restricting portion 161b so as to penetrate the upper restricting portion 161b in the vertical direction. The upper part of the coupling body 162 is engaged with the upper engaging part 161d. In the present embodiment, the upper engagement portion 161d is a through hole as an example, but the present invention is not limited to this, and may be a recess that does not penetrate.

  The lower regulation part 161e is formed in the lower part of each accommodating part 161a, respectively, and consists of a part of cylindrical bottom part of the fastener main body 161. As shown in FIG. The lower restricting portion 161e restricts the downward movement of the connecting body 162. Furthermore, the lower restricting portion 161e covers the bottom of the connecting body 162 and prevents the auxiliary cord 170 from coming into contact with the connecting body 162. For this reason, the force from the auxiliary cord 170 directly acts on the connecting body 162 to prevent the connecting body 162 from being detached from the stopper main body 161.

  As shown in FIG. 7, the lower engaging portion 161f is a rectangular through hole provided at the center position in the circumferential direction of each lower restricting portion 161e, and is formed through the lower restricting portion 161e in the vertical direction. Has been. The lower portion of the coupling body 162 is engaged with the lower engagement portion 161f. In the present embodiment, the lower engagement portion 161f is a through hole as an example, but the present invention is not limited to this, and may be a recess that does not penetrate.

  As shown in FIGS. 4 and 5, the hollow portion 161 g is formed in the axial center portion of the stopper main body 161. The hollow portion 161g is open to the accommodating portion 161a, and an insertion hole is provided below the hollow portion 161g to insert the lower surface of the hollow portion 161g and the lower surface of the stopper main body 161 as shown in FIG. 161h is formed. The insertion hole 161h is sized such that the auxiliary cord 170 can be inserted therethrough but the knot 171 formed in the auxiliary cord 170 cannot pass through, and the knot 171 formed in the auxiliary cord 170 inserted through the insertion hole 161h is held in the hollow portion 161g. It has come to be. Further, since the hollow portion 161g is open to the accommodating portion 161a, the auxiliary cord 170 can be pulled out from the stopper main body 161 when the knot 171 is formed in the auxiliary cord 170 inserted through the insertion hole 161h. The operation of forming the knot 171 is easy.

(Connected body 162)
As shown in FIGS. 4 and 5, the coupling body 162 is formed so as to protrude upward from the upper surface, an arc-shaped outer peripheral portion 162 a, a concave portion 162 b formed on the upper portion and through which the operation cord 150 is inserted. The upper engaging protrusion 162c that engages with the upper engaging portion 161d of the stopper main body 161, and the lower portion that is formed to protrude downward from the lower surface and engages with the lower engaging portion 161f of the stopper main body 161. The engaging protrusion 162d and a holding space 162e for holding the other end of the operation cord are provided.

  The outer peripheral portion 162a is configured to come into contact with the outer peripheral edge portion of the lower regulating portion 161e when the connecting body 162 is accommodated in the accommodating portion 161a of the stopper main body 161 and to form a substantially cylindrical shape together with the stopper main body 161. Has been.

  As shown in FIG. 6, the concave portion 162 b is provided at a position corresponding to the notch portion 161 c of the stopper main body 161 when the connecting body 162 is accommodated in the accommodating portion 161 a of the stopper main body 161. As a result, the end of the operation cord 150 is inserted into the coupling body 162 through the notch 161 c of the stopper main body 161 and the recess 162 b of the coupling body 162 sequentially.

  The upper engagement protrusions 162c are provided on both sides of the recess 162b and are formed to protrude in a substantially arc shape. The upper engagement protrusion 162c is engaged with the upper engagement portion 161d of the stopper main body 161 from below. Since the upper engagement protrusion 162c is formed in a substantially arc shape, it is configured to be easily detached from the upper engagement portion 161d when a radially outward force is applied to the upper portion of the coupling body 162. Yes. In the present embodiment, as an example, the upper engagement protrusion 162c is formed so as to protrude in a substantially arc shape. However, the present invention is not limited to this, and may have a shape corresponding to the shape of the upper engagement portion 161d. Moreover, you may give spring property to the upper engagement protrusion 162c by forming a notch in one side part of the upper engagement protrusion 162c on the concave portion 162b side.

  The lower engagement protrusion 162d is provided at the center in the circumferential direction of the coupling body 162, and a taper is provided at the lower end. The lower engagement protrusion 162d engages with the lower engagement portion 161f of the stopper main body 161 from above. Since the lower engagement protrusion 162d is tapered at the lower end, the lower engagement protrusion 162d is configured to easily come off while being tilted from the lower engagement portion 161f.

  The holding space 162e is a portion that holds the knot 151 formed in the operation cord 150 inserted therein, and is configured such that the upper surface is narrower than the lower surface. As a result, as shown in FIG. 5, the upper surface of the holding space 162 e serves as a stopper for the knot 151 formed on the operation cord 150.

  The configuration of the operation cord stopper 160 has been described above. In the operation cord stopper 160 configured as described above, when the connecting body 162 is separated from the stopper main body 161, as shown in FIGS. When a force is applied in a direction in which they are separated from each other, the coupling body 162 is separated so as to be tilted from the stopper main body 161 about the outer peripheral edge portion of the lower regulating portion 161e.

  The operation cord stopper 160 according to the present embodiment has been described above. Hereinafter, the operation of the operation cord stopper 160 will be described with reference to FIGS.

  First, as shown in FIGS. 10 and 11, when something is not caught on the operation cord 150, regardless of whether or not the operation cord 150 or the auxiliary cord 170 is operated, the connected body The state where 162 is accommodated in the accommodating portion 161a of the stopper main body 161 is maintained. In particular, in the conventional operation cord stopper, the operation cord stopper may be disassembled by the operation of the auxiliary cord. However, in this embodiment, when the auxiliary cord 170 is pulled downward, even if a downward pulling force is applied to the stopper main body 161, the upper body restricting portion 161b also causes the connecting body 162 to be integrated with the stopper main body 161. Since a downward moving force acts, the coupling body 162 is not separated from the stopper main body 161. Thereby, since the state in which the coupling body 162 was accommodated in the accommodating part 161a of the fastener main body 161 is maintained, the operation of the auxiliary cord 170 can be continued.

  Next, when something is caught on the operation cord 150, as shown in FIGS. 12 and 13, a force is applied to the operation cord 150 in the direction in which the operation cords 150 are separated from each other (arrow direction in the figure). When hooked, the upper engagement protrusion 162c of the coupling body 162 is disengaged from the upper engagement portion 161d of the stopper main body 161. Along with this, the connecting body 162 is tilted from the stopper main body 161 about the lower engaging portion 161f, and the lower engaging protrusion 162d of the connecting body 162 is disengaged from the lower engaging portion 161f.

  Thereafter, when a force is further applied to the operation cord 150 in a direction in which the operation cords 150 are separated from each other, as shown in FIGS. 14 and 15, the lower engagement protrusion 162 d of the coupling body 162 is moved to the lower engagement portion. The coupling body 162 is separated from the stopper main body 161 as indicated by an arrow in the figure.

(Effects of the first embodiment)
As described above, according to the present embodiment, when a force is applied to the operation cord 150 in the direction in which the operation cords 150 are separated from each other, the coupling body 162 is separated from the stopper main body 161. For this reason, even if a person or an object is caught on the operation cord 150, the loop formed by the operation cord 150 and the operation cord stopper 160 is released and the catch is eliminated. Thereby, safety when a person or an object is caught on the operation cord 150 can be secured.

  Further, unless the force is applied to the operation cord 150 in the direction in which the operation cords 150 are separated from each other, the stopper main body 161 and the coupling body 162 are not separated from each other. 162 can be operated continuously without being separated.

  Further, when the operation of pulling the auxiliary cord 170 downward is performed and a force pulling downward is applied to the stopper main body 161, this force also acts on the connecting body 162 by the upper restricting portion 161 b of the stopper main body 161. For this reason, the operation of the auxiliary cord 170 can be continued without separating the stopper main body 161 and the connecting body 162.

(Second Embodiment)
Next, the structure of the blind operating cord stopper according to the second embodiment will be described with reference to FIGS. FIG. 16 is a front view of the operation cord stopper of the present embodiment. FIG. 17 is a perspective view showing a state where a part of the coupling body is separated in the operation cord stopper of the present embodiment. 18 is a cross-sectional view taken along the line BB in FIG. In the present embodiment, a description will be given focusing on differences from the first embodiment. Constituent elements having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

  In the present embodiment, the hollow portion 261g formed in the stopper main body 261 of the operation cord stopper 260 according to the first embodiment is changed to a configuration closed with respect to the housing portion 261a. . With this configuration, the operation cord stopper 260 of the present embodiment has a slightly larger radial dimension than that of the first embodiment, as shown in FIG. Accordingly, the interval between the three operation codes 150 is increased. The other parts are the same as described above, and thus redundant description is omitted. The changed configuration will be described in detail below.

  As shown in FIGS. 17 and 18, the operation cord stopper 260 of the present embodiment is provided with a wall portion 261i between the hollow portion 261g of the stopper main body 261 and the accommodating portion 261a. As described above, the operation cord stopper 260 of the present embodiment has a slightly larger radial dimension than that of the first embodiment by the thickness of the wall portion 261i. The hollow portion 261g is formed so as to penetrate through the upper portion of the stopper main body 261. For this reason, an opening 261j is formed in the upper portion of the stopper main body 261.

  With this configuration, when the auxiliary cord 170 is connected to the stopper main body 261, the auxiliary cord 170 inserted into the hollow portion 261g through the insertion hole 261h from the lower surface of the stopper main body 261 is 17, the stopper body 261 is once pulled out of the stopper body 261 from the opening 261j. After the knot 171 is formed on the auxiliary cord 170 outside the stopper main body 261, the knot 171 is pulled back into the hollow portion 261g to be held in the hollow portion 261g. As described above, in this embodiment, when the knot 171 is formed on the auxiliary cord 170, the auxiliary cord 170 is pulled out from the opening 261j on the upper portion of the stopper main body 261. For this reason, since the operation | work which connects the auxiliary | assistant cord 170 to the stopper main body 261 can be performed irrespective of whether the connection body 262 is engaged with the stopper main body 261, workability | operativity is good.

  The operation of the operation cord stopper 260 of this embodiment is the same as that of the first embodiment, and as shown in FIG. When the force is applied in the direction in which the operation cords 150 are separated from each other (the arrow direction in the drawing), the upper engagement protrusion 262c of the coupling body 262 is disengaged from the upper engagement portion 261d of the stopper main body 261. Along with this, the connecting body 262 is separated from the stopper main body 261 so as to tilt with the outer peripheral edge of the lower restricting portion 261e as an axis.

(Effect of 2nd Embodiment)
As described above, according to the present embodiment, the same effect as that of the first embodiment can be obtained, and the stopper main body 261 can be connected regardless of whether the connecting body 262 is engaged with the stopper main body 261 or not. The auxiliary cord 170 can be connected. For this reason, workability is good.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this example. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used as a blind operating cord stopper for connecting ends of a plurality of operating cords capable of opening and closing a shielding material suspended from a head box.

100 Blind 110 Head box 120 Ladder cord 130 Slat (shielding material)
140 Bottom rail 150 Operation cord 151 Knot 160 Operation cord stopper 161 Stopper body 161a Housing portion 161b Upper restriction portion 161c Notch portion 161d Upper engagement portion 161e Lower restriction portion 161f Lower engagement portion 161g Hollow portion 161h Insertion hole 162 Connected body 162a Outer peripheral part 162b Recessed part 162c Upper engagement protrusion 162d Lower engagement protrusion 162e Holding space part 170 Auxiliary cord 171 Knot 180 Operation bar 260 Operation code stopper 261 Stopper body 262 Linkage body 261b Upper restriction part 261c Cut Notch

Claims (6)

Blind (100) operation cord stoppers (160, 260) for connecting ends of a plurality of operation cords (150) capable of opening and closing the shielding member (130) suspended from the head box (110) In
Stopper main bodies (161, 261) in which the accommodating portion (161a) is formed in a concave shape at a plurality of positions on the side surface;
A plurality of coupling bodies (162, 262) that are respectively coupled with the operation cords and accommodated in a state of being engaged with the accommodating portion;
With
An upper restricting portion (161b, 261b) for restricting the upward movement of the coupling body accommodated in the accommodating portion is formed on the upper portion of the accommodating portion,
The blind operation cord stopper according to claim 1, wherein when the force is applied to the operation cord in a direction in which the operation cords are separated from each other, the connecting body is separated from the stopper body. The upper restricting portion (161b, 261b) includes an upper engaging portion (161d, 261d) that engages with the coupling body,
  The coupling body includes upper engagement protrusions (162c, 262c) that engage with the upper engagement portion,
  The blind operating cord for an operating cord according to claim 1, wherein the upper engaging portion and the upper engaging protrusion are disengaged when a radially outward force is applied to an upper portion of the coupling body. Stopper. Blind (100) operation cord stoppers (160, 260) for connecting ends of a plurality of operation cords (150) capable of opening and closing the shielding member (130) suspended from the head box (110) In
A stopper main body (161, 261) in which the accommodating portion (161a) is formed in a concave shape on the side surface;
A plurality of coupling bodies (162, 262) that are respectively coupled with the operation cords and accommodated in a state of being engaged with the accommodating portion;
With
An upper restricting portion (161b, 261b) for restricting the upward movement of the coupling body accommodated in the accommodating portion is formed on the upper portion of the accommodating portion,
When a force is applied to the operation cord in a direction in which the operation cords are separated from each other, the connection body is separated so as to tilt from the stopper main body,
The upper restricting portion (161b, 261b) includes an upper engaging portion (161d, 261d) that engages with the coupling body,
The coupling body includes upper engagement protrusions (162c, 262c) that engage with the upper engagement portion,
The blind operating cord stopper according to claim 1, wherein the upper engaging portion and the upper engaging protrusion are disengaged when a radially outward force is applied to the upper portion of the coupling body . A lower restricting portion (161e, 261e) for restricting the downward movement of the coupling body accommodated in the accommodating portion is formed in the lower portion of the accommodating portion,
The lower restricting portion includes lower engaging portions (161e, 261e) that engage with the coupling body,
  The coupling body includes lower engagement protrusions (162d, 262d) that engage with the lower engagement portion,
  The lower engagement protrusion is disengaged while tilting from the lower engagement portion when a radially outward force is applied to the upper portion of the coupling body. The blind operating cord stopper described in 1. The blind according to any one of claims 1 to 4, wherein the stopper main body is connected to the other end of an auxiliary cord (170) whose one end is connected to the bottom rail (140). Operation cord stop. The blind operating cord stopper according to any one of claims 1 to 5, wherein the upper restricting portion is formed with a notch (161c, 261c) through which the operation cord is inserted. .