JP3138587B2 - Blind stopper device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind stopper device.

[0002]

2. Description of the Related Art Conventional blind stopper devices include the following. For example, Japanese Patent Publication No. 58-27
Japanese Patent Publication No. 399 discloses that a lifting operation code capable of operating the lifting and lowering of a slat is inserted into a hollow operation rod having a variable inclination angle of a slat provided at one end of a top rail and provided at a lower end of the operation rod. A locking fitting capable of restraining the lifting operation of the lifting operation code is provided on the grip to be moved.

[0003]

However, the conventional blind stopper device has the following problems. That is, since the locking metal is provided on the grip, the operation load during lifting and lowering is applied to the operation rod. For this reason, it is necessary to make the operation rod thicker in order to obtain strength, so that there is a problem that the operation unit becomes large. In order to solve the above problems, the Japanese
The present invention is shown in 5 JP, capable of transmitting the rotation of the operating handle disposed in the head box to a rotating shaft work
In the moving drum , a stopper having a conical portion having a substantially U-shaped cross section capable of holding the elevating cord in cooperation with the tapered portion of the operating drum and restraining the elevating cord is housed, and is drawn out of the head box. The lifting cord is inserted through the hollow operation handle and is led out from the lower end of the operation handle. Further, one end of a stopper release cord capable of releasing the fastening thereof is connected to the stopper. The connection of the stopper releasing cord to the stopper is performed by introducing one end of the stopper releasing cord from the bottom of the stopper into the conical portion, forming a knot, and storing the knot in the conical portion. The other end of the stopper release cord is inserted through the inside of the operation handle and is led out from the lower end of the operation handle. When raising the slat, the stopper is released by pulling the lifting cord downward, and when lowering the slat, the stopper is released by pulling the stopper release cord downward. However, the working drum is
Has a function of transmitting the rotation of the operating handle to the rotating shaft, because it further incorporates a stopper, the interior space of the working drum is increased, the shape of the working drum is increased,
There is a problem that the play of the elevating cord is increased and the operating drum and the stopper rotate integrally or relatively, so that the elevating cord is easily entangled. Also, because the stopper cannot be pre-assembled structurally,
There is a problem that assembly workability is poor. Further, in order to accommodate the knot formed on the stopper releasing cord in the conical portion of the stopper, the radial dimension of the conical portion must be increased, so that the shape of the conical portion has a substantially U-shaped cross section. Must be formed. Therefore, when the elevating cord is sandwiched between the stopper and the tapered portion, the elevating cord slips and cannot be reliably sandwiched, that is,
There is a problem that the stopper may not work. An object of the present invention is to solve such a problem.

[0004]

SUMMARY OF THE INVENTION The present invention resides in a headbox (12) , one end of which is a bottom rail (14).
While being connected to the fastening so as to restrain the movement of the head box (12) introduced Ru temperature <br/> descending encoded within (18)
Then, the fastening is done by the stopper release cord (30) .
A blind stopper device for releasing, comprising a stopper case (4) fixed to the head box (12).
0), the code nozzle (42) provided at one end of the stopper case (40) so as not to move in the longitudinal direction, and the stopper case (40) cannot rotate relative to the code nozzle (42), but relatively move in the longitudinal direction. Code stopper (4
6) and an elastic body (48) that constantly presses the code stopper (46) in the direction of the code nozzle (42). The code stopper (46) has a stopper case (4).
0) and the lifting code (18)
A conical tip (54) protruding from the bottom (58), which allows the lifting cord (18) to be immovably pinched between the bottom (58) through which the cord is movably inserted and the code nozzle (42). ), And the code stopper (46) is opened from the bottom (58) toward the outer peripheral surface of the tip (54), through which the stopper release cord (30) can be inserted. The insertion hole (62) and the second insertion hole (6) disposed on the outer peripheral side of the insertion hole (62) and penetrating the bottom portion (58).
4) are respectively formed, and the stopper releasing cord (30) has a distal end which is the first from the bottom (58) side.
After being inserted into the insertion hole (62) and being led out from the outer peripheral surface of the distal end portion (54), the bottom portion (5) is inserted through the second insertion hole (64).
The cord stopper (4) is led out on the opposite side to the tip (54) of the cord stopper (4) and is formed with a stopper (70).
6). In addition, the code | symbol in a parenthesis shows the corresponding member of an Example.

[0005]

When raising the slat, the lifting cord extending from the lower end of the rotary operation rod is pulled downward. As a result, the lifting cord is pulled toward one end of the head box, and the friction between the lifting cord and the cord stopper slightly moves the cord stopper in a direction away from the code nozzle against the elastic force of the elastic body. As a result, the fastening between the code nozzle and the distal end of the code stopper is released, and the force for pinching the elevating cord is reduced, so that the elevating cord can be continuously pulled downward. Therefore, the slat can be raised. To stop raising the slats, release the lifting cord. As a result, the force for pulling the lifting cord in the direction of one end of the head box is released, and the cord stopper is pressed toward the code nozzle by the elastic force of the elastic body. For this reason,
The code nozzle and the tip of the code stopper are fastened to clamp the elevating cord, and the frictional engagement between the code stopper and the elevating cord further tightens the elevating cord, so that the elevating cord is restrained from moving. . Thus, the slat can be stopped at a predetermined position. To lower the slat, pull the stopper release cord downward with the grip. As a result, the stopper releasing cord is pulled toward one end of the head box, so that the cord stopper to which the stopper releasing cord is connected moves away from the code nozzle against the elastic force of the elastic body. As a result, the fastening between the code nozzle and the distal end portion of the code stopper is released, and the lifting code cannot be pinched, so that the lifting code can move freely. As a result, the slat descends due to the weight of the bottom rail. next,
To stop lowering the slat, release the grip. As a result, the force for pulling the stopper release cord toward one end of the head box is released, and the cord stopper is pressed toward the code nozzle by the elastic force of the elastic body. For this reason, the code nozzle and the tip of the code stopper are fastened to clamp the lifting code, and the code stopper further tightens the lifting code by frictional engagement between the code stopper and the lifting code, so that the lifting code can move. Be bound. Thus, the slat can be stopped at a predetermined position.

[0006]

1 shows a blind embodying the present invention.
A plurality of slats 10 are arranged at predetermined intervals in the vertical direction.
2 are arranged, and the bottom rail 14 is arranged on the lower end side. A ladder cord 16 is provided between the head box 12 and the bottom rail 14 to support each slat 10. The upper end of the ladder cord 16 is connected to a rotating drum 17 rotatably provided in the head box 12 so as to be wound and unwound. By the rotation of the rotary drum 17, the inclination angle of the slat 10 can be changed. At one end of the head box 12, a hollow tilter input shaft 22 is led out. At the lower end of the tilter input shaft 22, a hollow rotary operation rod 24 provided with a hollow grip 32 at the lower end rotates integrally. It is connected as possible. The rotation of the rotation operation rod 24 is transmitted to a tilter 20 provided near one end of the head box 12 via a tilter input shaft 22. The rotation transmitted to the tilter 20 rotates the rotary drum 17 that is integrally connected to the tilter 20 via the rotary shaft 23. The lifting code 18 is
One end is connected to the bottom rail 14, and the other end is inserted into an insertion hole (not shown) provided in the slat 10 to be introduced into the head box 12 and provided near one end in the head box 12. Through the stopper device 21, the tilter input shaft 22 and the rotation operation rod 24.
And the inside of the grip 32, respectively, and is connected to a knob 26 arranged below the grip 32 so as to be vertically movable. As will be described later, the stopper device 21 can restrict the movement of the lifting cord 18. Further, one end of a stopper releasing cord 30 capable of releasing the restraint of the lifting cord 18 is connected to the stopper device 21. The other end of the stopper release cord 30 is connected to the grip 32 through the tilter input shaft 22 and the rotation operation rod 24. The rotation operation rod 24 is provided with a cord hook 34 that can hook the elevating cord 18 derived from the lower end of the rotation operation rod 24.

FIG. 2 is an exploded perspective view of the stopper device 21. The stopper device 21 includes a stopper case 40, a code nozzle 42, a code nozzle stopper 44, a code stopper 4
6, a spring (elastic body) 48 and a cord stopper 50 are provided. The stopper case 40 has a substantially rectangular parallelepiped shape with an open upper part, and ridges 41 are formed inside the side edges of both side walls except for the vicinity of the right end in FIG. . Further, the protruding strip 41 is formed with a retaining piece 43 that protrudes further from the predetermined position in the length direction to the right end in FIG. Engagement holes 45 are formed near the right ends in FIG. Holes 47 are formed at two locations (one location is not shown) on the bottom surface of the stopper case 40 at the same position as the engagement hole 45 in the longitudinal direction. The left end of the stopper case 40 in FIG.
Are formed.
The code nozzle 42 includes a small diameter portion 42a that can be fitted into the code nozzle support hole 52 of the stopper case 40, and a large diameter portion 42b. A nozzle hole 56 through which the elevating cord 18 can be inserted and into which the code stopper 46 is inserted and which can be tightened with the cord stopper 46 is formed in the inner diameter portion of the code nozzle 42. The code nozzle stopper 44 has a substantially “U” -shaped notch 59 formed therein. On the bottom surface of the code nozzle stopper 44, a projecting portion 44a that can be fitted into a hole (not shown) formed on the bottom surface of the stopper case 40 is formed. Protrusions 44b and 44c that can be respectively engaged with the protrusions 41 of the case 40 are formed. The cord stopper 46 has a bottom portion 58 of a substantially quadrangular prism,
And a conical tip 54 projecting therefrom. The code stopper 46 has a plurality of lifting / lowering cord insertion holes 60 formed in the bottom 58 of the code stopper 46 at predetermined intervals around the distal end 54 so that the lifting / lowering cord 18 can be inserted therethrough.
Further, the cord stopper 46 is provided with the tip 5 from the bottom 58.
A first insertion hole 62 (see FIG. 4) that opens to the outer peripheral surface of the front end portion 4 and a second insertion hole 64 that penetrates the bottom portion 58 at a position adjacent to the first insertion hole 62 on the outer peripheral surface of the distal end portion 54, Is formed. First insertion hole 62 and second insertion hole 6
Reference numerals 4 allow the stopper release cord 30 to be inserted. A guide groove 68 for guiding the movement of the lifting / lowering cord 18 is formed on the outer peripheral surface of the distal end portion 54 at a position corresponding to the position of the lifting / lowering cord insertion hole 60 on the bottom 58. The spring 48 has a rectangular shape substantially the same size as the bottom 58 of the cord stopper 46. The cord stopper stopper 50 has a substantially "U" shape, and has protrusions 50a and 50b which can be fitted into the holes 47 of the stopper case 40 at the ends of both side walls, and stopper cases at the side surfaces of both side walls. Projection portions 50c and 5 that can be engaged with engagement holes 45 of 40
0d, respectively. Each of the above components is formed of a material having strength suitable for each component. Thereby, the durability of each component can be improved.

[0008] Based on the perspective view of the stopper device 21 shown in FIG. 3 and the sectional view shown in FIG.
1 is described. First, the code nozzle 42 is inserted from above the stopper case 40 and the code nozzle 42 is inserted.
Is fitted into the code nozzle support hole 52 of the stopper case 40. Next, the stopper case 40
The code nozzle stopper 44 is inserted from above, and the projection 44a of the code nozzle stopper 44 is fitted into a hole (not shown) on the bottom surface of the stopper case 40, and the projections 44b and 44c of the code nozzle stopper 44 are respectively inserted into the stopper case. Engage with the groove at the bottom of the 40 ridges 41. As a result, the large-diameter portion 42b of the code nozzle 42 is inserted into the code nozzle support hole 52 of the stopper case 40 and the code nozzle stopper 4.
4, the movement is restricted. Next, the code stopper 46 is inserted from the right end of the stopper case 40 in FIG. At this time, since the upward movement of the cord stopper 46 is restricted by the retaining piece 43 of the stopper case 40, the cord stopper 46 does not come off from the upper part of the stopper case 40. In the cord stopper 46, one end of the stopper release cord 30 is inserted into the first insertion hole 62 from the bottom portion 58 in advance, and is led out from the outer peripheral surface of the distal end portion 54 to the outside. 58 are led out on the side opposite to the side on which the distal end portion 54 is formed, and a knot 70 is formed and connected so as not to come off from the cord stopper 46. Next, the lifting cord 18 is connected to the code nozzle support hole 52 of the stopper case 40.
Into the stopper case 40 and the code nozzle 42
Nozzle hole 56 and notch 59 of code nozzle stopper 44
And guided by the guide groove 68 of the code stopper 46 to be led out of the lifting cord insertion hole 60.
Next, the code stopper 46 is pressed toward the left side of the stopper case 40 in FIG.
The second nozzle hole 56 is inserted. Next, the spring 48 is
The elevating cord 18 and the stopper releasing cord 30 are inserted into the internal space of the stopper case 40 and inserted from the right end of the stopper case 40 in FIG. Next, the cord stopper 50
The lifting cord 18 and the stopper releasing cord 30 are inserted into the internal space of the stopper case 40, and inserted from above the stopper case 40. The protrusions 50a and 50b are respectively fitted into the holes 47 of the stopper case 40. The projections 50c and 50d of the stopper case 4
0 engagement hole 45. Thereby, the spring 48
Is the stopper case 4
0 is prevented from slipping out of the right end in FIG. 3, and the code stopper 46 is constantly pressed in the direction of the code nozzle 42. Therefore, the nozzle hole 5 of the code nozzle 42
6 and the tip end portion 54 of the cord stopper 46 are fastened, and the lifting cord 18 is sandwiched between them.
Since the cord stopper 46 further tightens the elevating cord 18 by frictional engagement between the cord stopper 46 and the elevating cord 18, the movement of the elevating cord 18 is restrained.

Next, the operation of this embodiment will be described.
First, when raising the slat 10, the user lifts the lifting cord 18 extending from the knob 26 or the lower end of the grip 32 and pulls it downward. As a result, the lifting cord 18 is guided by the guide groove 68 of the cord stopper 46 and is pulled rightward in FIG. 5, so that the friction between the lifting cord 18 and the cord stopper 46 causes the cord stopper 46 to oppose the elastic force of the spring 48. It moves slightly to the right in FIG. As a result, the fastening between the nozzle hole 56 of the code nozzle 42 and the distal end portion 54 of the code stopper 46 is released, so that the force for pinching the lifting cord 18 between them is weakened, and the lifting cord 18 is continuously pulled downward. be able to. Therefore, the slat 10 can be raised. When stopping the lifting of the slat 10, release the hand from the knob 26 or the lifting cord 18. Thereby, the force for pulling the lifting cord 18 rightward in FIG. 5 is released, and the cord stopper 46 is pressed toward the cord nozzle 42 by the elastic force of the spring 48. Therefore, the nozzle hole 56 of the code nozzle 42 and the tip end portion 54 of the code stopper 46 are fastened, so that the elevating cord 18 is sandwiched therebetween, and the code stopper 46
The cord stopper 46 further tightens the lifting cord 18 by frictional engagement between the lifting cord 18 and the lifting cord 18, so that the movement of the lifting cord 18 is restrained. Thereby, slat 1
0 can be stopped at a predetermined position. Next, when lowering the slat 10, the user holds the grip 32 and pulls it downward. As a result, the stopper release cord 30 moves rightward in FIG. 5, and the cord stopper 46 to which it is connected moves to the position shown in FIG. 6 against the elastic force of the spring 48. As a result, the fastening between the nozzle hole 56 of the code nozzle 42 and the tip end portion 54 of the code stopper 46 is released, so that the lifting / lowering cord 18 is not pinched between them and the movement becomes free.
For this reason, the slat 10 descends by the weight of the bottom rail 14. To stop the lowering of the slat 10, release the hand from the grip 32. Thus, the force for pulling the stopper release cord 30 rightward in FIG. 6 is released, and the cord stopper 46 is pressed toward the code nozzle 42 by the elastic force of the spring 48. As a result, the nozzle hole 56 of the code nozzle 42 and the distal end portion 54 of the code stopper 46 are fastened, so that the elevating cord 18 is sandwiched therebetween, and the frictional engagement between the code stopper 46 and the elevating cord 18 is established. By code stopper 4
6 further tightens the elevating cord 18, so that the movement of the elevating cord 18 is restrained. Thereby, the slat 10
Can be stopped at a predetermined position.

In the description of the above embodiment, the spring 48 is used as the elastic body. However, the present invention is not limited to this, and an elastic body such as rubber may be used.

[0011]

According to the present invention, the stopper case having an open upper portion is fixed to the head box, and the cord stopper is fitted to the stopper case so that it cannot be rotated relative to the stopper case but can be relatively moved in the longitudinal direction. The code stopper has a conical tip that can pinch the lifting cord immovably with the code nozzle, and the stopper release cord is inserted through the tip of the cord stopper from the bottom to the outer peripheral surface of the tip. To the outside, and is led out on the side opposite to the tip of the bottom to form a stopper and connect to the cord stopper. Therefore, both the stopper case and the code stopper cannot be rotated, and the shape of the stopper case can be reduced, so that the space between the stopper case and the code stopper can be reduced. Thereby, the entanglement of the lifting cord can be prevented.
Further, the size of the stopper device itself can be reduced. Further, since the stopper case has an upper opening, parts can be incorporated into the stopper case from above, and the stopper case only needs to be fixed to the head box, so that the assembling work is easy. Further, since the stopper of the stopper releasing cord is not accommodated in the distal end of the cord stopper, the radial dimension of the distal end can be reduced, so that the distal end can be formed in a conical shape. As a result, the lifting code can be reliably sandwiched between the tip of the code stopper and the code nozzle,
The stopper device can be operated reliably.

[Brief description of the drawings]

FIG. 1 is a diagram showing a blind embodying the present invention.

FIG. 2 is an exploded perspective view of a stopper device.

FIG. 3 is a perspective view of a stopper device.

FIG. 4 is a sectional view taken along line 4-4 of FIG. 3;

FIG. 5 is a diagram showing the stopper device in a fastened state.

FIG. 6 is a view showing the stopper device in a state where the fastening is released.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Slat 12 Head box 14 Bottom rail 16 Ladder code 18 Elevating cord 21 Stopper device 24 Rotating operation rod 30 Stopper releasing code 32 Grip 40 Stopper case 42 Code nozzle 46 Code stopper 48 Spring (elastic body) 54 Tip part 58 Bottom part 62 1 insertion hole 64 second insertion hole 70 knot (remove)

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A-3-100293 (JP, A) JP-A-63-12011 (JP, U) JP-A-63-125099 (JP, U) JP-A-1 90999 (JP, U) Jiko 3-35035 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) E06B 9/324

Claims (1)

(57) [Claims] 1. A head box (12) ,
One end while the fastening so as to restrain the movement of the bottom rail (14) to the connection has been headbox (12) introduced Ru lifting cord into (18), releasing the engagement by the stopper release cord (30) Blind strike
A Tsu Pas apparatus, the stopper case (40) fixed to the head box (12), one end of the coding nozzle provided so immovable in the longitudinal direction of the stopper case (40) (42)
And the stopper case (40) cannot be relatively rotated, but is relatively movably provided in the longitudinal direction, and the code stopper (46) is constantly pressed in the direction of the code nozzle (42). An elastic body (48), the code stopper (46) is fitted to the stopper case (40), and the bottom (58) through which the elevating cord (18) is movably inserted; (42)
And the conical tip (5) protruding from the bottom (58), so that the lifting cord (18) can be immovably pinched therebetween.
4), and the code stopper (46) is inserted from the bottom part (58) to the tip part (5) through which the stopper release cord (30) can be inserted.
The first insertion hole (62) opening toward the outer peripheral surface of (4) and the second insertion hole (64) disposed on the outer peripheral side and penetrating the bottom portion (58) are formed respectively, and the stopper is released. After the tip of the cord (30) is inserted into the first insertion hole (62) from the bottom (58) side and led out from the outer peripheral surface of the tip (54), the second insertion hole (6).
4) a blind stopper which is led out of the bottom part (58) on the opposite side to the tip part (54), and is connected to the cord stopper (46) by forming a stopper (70). apparatus.