JPH08303153A - Cover for horizontal blind-operating device - Google Patents

Abstract

PURPOSE: To facilitate the work of attaching a cover, and to have parts for common use even in the case where the direction in which an input shaft for an operating device is offset to the opening part of a head box is different from each other. CONSTITUTION: Securing protrusions protruding from an opening part outside a head box 1 are formed on a case 16 for an operating deivce which is to be brought into contact with the inner surface of the opening part, in the head box 1, and the operating device is positioned in the longitudinal and vertical directions of the head box 1. Engaging recess parts to be elastically engaged with the securing protrusions are formed on a cover 14 with which the opening part is covered in the condition that an input shaft 12 for the operating device is inserted thereinto, and the cover 14 can be fastened to the operating device. The cover 14 fastened to the operating device is brought into contact with the exterior surface of the head box 1 and the operating device is positioned in the front and rear direction of the head box 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal blind in which an operating rod for operating a slat is hung from a head box, for connecting the operating rod and a gear mechanism arranged in the head box. The present invention relates to an operating device cover that covers an opening provided in the head box.

[0002]

2. Description of the Related Art In a horizontal blind, a large number of slats are suspended from a headbox via a plurality of ladder cords, and a bottom rail is suspended from the lower end of the ladder cord. A plurality of lifting cords are inserted through each slat, one end of the lifting cord is connected to the bottom rail, and the other end is guided into the head box and connected to the operating device.

Then, by operating the operating device, the bottom rail is moved up and down via the elevating cord, whereby the slats are moved up and down. In addition, by operating the operating device, the angles of the respective slats are adjusted in the same phase via the ladder cord.

As one type of the operating device, a gear mechanism is arranged in the head box, and an input shaft of the gear mechanism is projected from the opening provided in the head box to the outside of the head box, and a tip of the input shaft. The operation rod is connected to
There is a slat whose angle can be adjusted by rotating the operating rod.

In such an operating device, it is aesthetically unfavorable if the opening of the head box is exposed. Therefore, a cover that covers the opening of the head box is attached.

[0006]

The gear mechanism and the cover of the horizontal blind as described above must be immovably fixed to the head box. Then, the gear mechanism is fixed to the opening portion of the head box by the fixing means, and the cover is fixed to the gear mechanism exposed in the opening portion, or the cover is fixed to the opening portion of the head box and the opening portion The gear mechanism is fixed to the cover that projects into the head box. Therefore, the work of attaching the gear mechanism and the cover becomes complicated.

On the other hand, a worm mechanism is used as the gear mechanism, and the input shaft of the gear mechanism may be projected outside the head box at a position offset from the center of the opening of the head box.

Further, such a gear mechanism is provided on either the left end side or the right end side of the head box according to the specifications of the horizontal blind, and the gear mechanism used in each specification is the position of the input shaft and the output shaft. The relationship is line symmetrical. Therefore, the input shaft of the gear mechanism may be offset leftward or rightward from the center of the opening of the headbox depending on the specifications.

In such a configuration, in order to surely cover the opening portion with the cover without interfering with the input shaft in each specification, it is necessary to provide a dedicated cover for each specification.
Therefore, there is a problem that the number of parts increases and the manufacturing cost increases.

An object of the present invention is that the mounting work is easy,
Another object of the present invention is to provide an operating device cover that enables common parts even when the offset direction of the input shaft of the operating device with respect to the opening of the head box is different.

[0011]

According to a first aspect of the present invention, in the head box, the case of the operating device that abuts the periphery of the opening is provided with a locking projection protruding from the opening to the outside of the head box. The operating device is positioned in the longitudinal direction and the vertical direction of the head box, and the cover formed to cover the opening with the input shaft of the operating device inserted is elastically engaged with the locking projection. The engaging recess is provided so that the cover can be fixed to the operating device, and the cover fixed to the operating device contacts the outer surface of the head box to position the operating device in the front-back direction of the head box. .

According to a second aspect of the present invention, the locking projection projects from the positioning piece protruding along both left and right edges of the opening and an upper end of the positioning piece, and a base end of the locking projection is an upper edge of the opening. And a pair of locking claws provided on the lower end of the positioning piece, and elastically engages the locking projections and the locking claws on the back surface of the cover. An engaging recess is provided, and the engaging recess allows the engaging position of the engaging projection and the engaging claw to be adjusted in the left-right direction of the head box.

According to a third aspect of the present invention, two sets of engaging recesses for engaging the locking projection and the locking claw are provided, and the engaging position between the engaging recess and the locking projection and the locking claw is the head. The position can be adjusted in the left-right direction of the box.

[0014]

According to the first aspect of the present invention, the operating device is fixed to the head box when the engaging recess of the cover is engaged with the locking projection of the operating device.

According to the second aspect of the present invention, the operating device is fixed to the head box by engaging the engaging recess of the cover with the engaging projection and the engaging claw of the operating device. Since the engaging recess can adjust the engaging position of the locking projection and the locking claw in the left-right direction of the head box, the input shaft is projected from the center of the opening in either the left-right direction. However, the cover can be engaged with the locking projection and the locking claw of the operating device while the input shaft is inserted.

According to the third aspect of the present invention, the position of the cover can be adjusted in the left-right direction of the head box by selecting one of the two sets of engaging recesses and engaging the engaging projection and the engaging claw.

[0017]

FIG. 1 shows an embodiment embodying the present invention.
In the horizontal blind, a large number of slats 3 are suspended from a head box 1 through a plurality of ladder cords 2,
A bottom rail 4 is suspended and supported at the lower end of the ladder cord 2.

A plurality of supporting members 5 are arranged in the head box 1, and a drum 6 is rotatably supported on the supporting members 5. The upper end of the ladder cord 2 is attached to the drum 6, and an angle adjusting shaft 7 is fitted in the center of the drum 6. Therefore, when the angle adjusting shaft 7 is rotated, the drum 6 is rotated, and one of the ladder cords 2 is pulled up in accordance with the rotation of the drum 6, so that each slat 3 and the bottom rail 4 are in phase with each other. Adjusted.

An operating rod 8 is suspended from and supported on one end of the head box 1. When the operating rod 8 is rotated, the angle adjusting shaft 7 is rotated via the gear mechanism 9 arranged in the head box 1 as shown in FIG. Therefore, the angle of each slat 3 can be adjusted by rotating the operating rod 8.

An elevating cord 10 is passed through both sides of the slat 3, and one end of the elevating cord 10 is attached to the bottom rail 4. The other end of the lifting cord 10 is guided through the support member 5 in the head box 1 toward the gear mechanism 9. Then, it is inserted into the operation rod 8 through a stopper provided in the gear mechanism 9, and its tip is connected to the cord equalizer 11.

Therefore, when the cord equalizer 11 is pulled downward and the lifting cord 10 is pulled out from the head box 1 as shown by the chain line in FIG. 1, the bottom rail 4 is pulled up and the slats 3 are pulled up. When the pulling-out operation of the lifting cord 10 is stopped, the stopper operates to prevent the bottom rail 4 and the slat 3 from being lowered due to their own weight, and the slat 3 is suspended and supported at a desired position.

When the operating rod 8 is pulled downward, the operation of the stopper is released and the bottom rail 4 and the slat 3 are lowered by their own weight. Figure 2
As shown in FIG. 3, the operating rod 8 is suspended from and supported by the tip of the input shaft 12 of the gear mechanism 9 protruding from the head box 1 via a universal joint 13, and the periphery of the input shaft 12 is covered with a cover 14. There is.

The mounting structure of the gear mechanism 9 and the cover 14 to the head box 1 will be described below. As shown in FIG. 3, at the mounting position of the gear mechanism 9 at the right end portion of the head box 1, an opening portion 15 is provided from the front surface to the lower surface of the head box 1, and the input shaft 12 is slanted from the opening portion 15. It is projected downward. As shown in FIG. 8 and FIG. 8, when the gear mechanism 9 is attached to the right end side of the head box 1, the input shaft 12 is offset from the center of the opening 15 to the left and protrudes. When the gear mechanism 9 is attached to the left end side of the head box 1 as shown in FIG. 9, the gear mechanism 9 is formed in line symmetry with the gear mechanism 9 shown in FIG. The shaft 12 is offset from the center of the opening 15 to the right and protrudes.

The case 16 of the gear mechanism 9 is provided with a positioning piece 17 which projects out of the head box 1 along the left and right edges of the opening 15. Therefore, the gear mechanism 9 is supported by the positioning piece 17 so as to be immovable in the left-right direction with respect to the head box 1.

A pair of locking projections 18a, 18b projecting obliquely upward are provided on the upper end of the positioning piece 17, and the locking projections 18a, 18b are provided as shown in FIG.
The base end of b is in contact with the upper edge of the opening 15. Therefore, the gear mechanism 9 is connected to the bottom of the head box 1 and the opening 1
By the locking projections 18a and 18b that abut against the upper edge of 5, the head box 1 is supported immovably in the vertical direction.

The positioning piece 17 is the head box 1
Is formed up to the bottom side of the base plate, and locking claws 19a and 19b are formed at the lower end parts thereof so as to project obliquely downward toward the rear.

The cover 14 is made of a synthetic resin having elasticity and is formed in a box shape having an open rear surface. The outer peripheral edge of the rear surface is formed so as to follow the shape from the front surface to the bottom surface of the head box 1.

At the central portion of the cover 14 in the left-right direction, the insertion groove 2 extends from the lower edge of the cover 14 to the central portion in the vertical direction.
0 is formed, and the input shaft 12 can be projected from the insertion groove 20.

Four engaging recesses 21a to 21d are formed on the lower surface of the upper side of the cover 14. Then, the interval between the engaging recesses 21a and 21c, and the engaging recesses 21b and 21b,
The interval of 21d is the same interval, and both are formed equal to the interval of the locking projections 18a and 18b.

The distance between the engaging recesses 21a and 21c and the insertion groove 20 corresponds to the distance between the locking projections 18a and 18b of the gear mechanism 9 attached to the right end side of the head box 1 and the input shaft 12. To do. The distance between the engaging recesses 21b and 21d and the insertion groove 20 is the same as the engaging projections 18a and 18b of the gear mechanism 9 attached to the left end side of the head box 1 and the input shaft 1.
Corresponds to the distance from 2.

Four engaging recesses 22a to 22d are formed on the upper surface of the lower side of the cover 14. Then, the interval between the engaging recesses 22a and 22c, and the engaging recesses 22b and 22b,
The distance of 22d is the same as that of the locking claw 1.
It is formed so as to have an interval of 9a and 19b.

The distance between the engaging recesses 22a and 22c and the insertion groove 20 corresponds to the distance between the locking claws 19a and 19b of the gear mechanism 9 attached to the right end side of the head box 1 and the input shaft 12. To do. The distance between the engaging recesses 22b and 22d and the insertion groove 20 corresponds to the distance between the locking claws 19a and 19b of the gear mechanism 9 attached to the left end side of the head box 1 and the input shaft 12.

As shown in FIG. 6, when the engaging recesses 21a and 21c of the cover 14 are engaged with the locking projections 18a and 18b, the lower side of the cover 14 is at the base end of the locking claws 19a and 19b. Abut. When the lower portion of the cover 14 is pressed toward the head box 1 from this state, the lower portion of the cover 14 moves in the same direction while bending. Then, as shown in FIG. 7, the engaging recesses 22a and 22c are fitted into the locking claws 19a and 19b.

The cover 14 has engagement recesses 21a, 21
c, 22a, 22c engaged with the locking projections 18a, 18b and the locking claws 19a, 19b, and the engaging recess 21
b, 21d, 22b, 22d are locking projections 18a, 18b
Also, the opening portion 15 is formed to have a size that can cover the opening portion 15 in any state in which it is engaged with the locking claws 19a and 19b.

Next, the cover 14 constructed as described above.
The operation of will be described. Headbox 1 as shown in FIG.
When the cover 14 is attached to the gear mechanism 9 disposed on the right end side of the cover 14, the engaging protrusions 2a of the cover 14 are engaged with the engaging recesses 2a of the cover 14 protruding from the opening 15 of the head box 1.
The cover 14 is fixed to the case 16 by engaging 1a and 21c and engaging the locking claws 19a and 19b with the engaging recesses 22a and 22c.

In this state, the case 16 is prevented from retracting into the head box 1 by the cover 14 that contacts the front surface of the head box 1. Further, the positioning piece 17 of the case 16 and the locking projections 18a and 18b prevent the case 16 from moving in the left-right direction and the vertical direction of the head box 1. Therefore, by engaging the cover 14 with the locking projections 18a, 18b and the locking claws 19a, 19b of the case 16, the gear mechanism 9 can be easily fixed to the head box 1.

As shown in FIG. 9, when the cover 14 is attached to the gear mechanism 9 arranged on the left end side of the head box 1, the locking projection 18 a protruding from the opening 15 of the head box 1. , 18b, the engaging recess 21 of the cover 14
The cover 14 is fixed to the case 16 by engaging b and 21d and engaging the locking claws 19a and 19b with the engaging recesses 22b and 22d. Therefore, the gear mechanism 9 can be easily fixed to the head box 1.

As described above, the cover 14 has the locking projections 18a, 18b and the locking claws 19a, 19b of the gear mechanism 9.
The gear mechanism 9 can be easily fixed to the head box 1 by engaging with the gear mechanism 9 and can be used for both the gear mechanism 9 disposed on the right end side and the left end side of the head box 1. Therefore, the parts can be shared.

In the above embodiment, four engaging recesses 21a to 21d and 22a to 22d are formed to deal with the gear mechanism 9 arranged on the left and right of the head box 1. The fitting recesses 21a to 21d and 22a to 22d are formed as continuous long grooves, and the locking projections 18 are formed in the long grooves.
The a, 18b and the locking claws 19a, 19b may be engaged.

The technical ideas other than the claims that can be understood from the above-described embodiments will be described below along with their effects. (1) In claim 1, the cover is formed of a synthetic resin having elasticity. The engagement recess can be elastically engaged with the locking projection. (2) In claim 3, a plurality of sets of engaging recesses for engaging the locking projections and the locking claws are provided, and an engaging position between the engaging recesses and the locking projections and the locking claws is set in the head box. The position can be adjusted left and right. It is possible to select the engagement position between the engagement recess and the engagement protrusion and the engagement claw from a plurality of positions.

[0041]

As described above in detail, according to the first aspect of the present invention, it is possible to provide the cover for the operating device which can be easily attached.

According to the second and third aspects of the present invention, it is possible to provide an operating device cover that can share parts even when the offset direction of the input shaft of the operating device with respect to the opening of the head box is different.

[Brief description of drawings]

FIG. 1 is a front view of a horizontal blind.

FIG. 2 is a perspective view showing a state in which a cover is attached to an operating device.

FIG. 3 is a perspective view showing a state in which a cover is removed.

FIG. 4 is a perspective view of a cover.

FIG. 5 is a perspective view of a cover.

FIG. 6 is a cross-sectional view showing a cover mounting operation.

FIG. 7 is a cross-sectional view showing a state in which a cover is attached.

FIG. 8 is a plan view showing a state in which a cover is attached.

FIG. 9 is a plan view showing a state in which a cover is attached.

[Explanation of symbols]

 1 Head Box 9 Operating Device (Gear Mechanism) 12 Input Shaft 14 Cover 15 Opening 17 Locking Protrusion (Positioning Piece) 18a, 18b Locking Protrusion (Locking Protrusion) 19a, 19b Locking Claw 21a-21d Engagement Recesses 22a to 22d Engagement recesses

Claims (3)

[Claims] 1. A slat operating device is provided in a head box, an input shaft of the operating device is projected from an opening of the head box, and an operating rod is connected to the input shaft to operate the operating rod. In the horizontal blind capable of operating the slat by, in the head box, the case of the operating device that abuts around the opening is provided with a locking projection protruding from the opening to the outside of the head box, The operation device is positioned in the longitudinal direction and the up-down direction of the head box, and the cover that is shaped to cover the opening while the input shaft is inserted is elastically engaged with the locking protrusion. The cover is fixed to the operating device by providing a recess, and the cover fixed to the operating device is brought into contact with the outer surface of the head box to position the operating device in the front-back direction of the head box. I decided to cover lateral blind operating device, characterized in that the. 2. The locking projection projects from a positioning piece protruding along both left and right edges of the opening, and an upper end of the positioning piece, and a base end of the locking projection abuts an upper edge of the opening. An engaging recess formed of a pair of locking projections and a pair of locking claws provided on the lower end of the positioning piece, and on the back surface of the cover that is elastically engaged with the locking projections and the locking claws. 2. The cover for an operating device for a horizontal blind according to claim 1, wherein the engagement concave portion is capable of adjusting an engaging position of the locking projection and the locking claw in a lateral direction of the head box. 3. Two sets of engaging recesses for engaging the locking projections and the locking claws are provided, and an engaging position between the engaging recesses and the locking projections and the locking claws is set in a left-right direction of the head box. The cover for an operating device of a horizontal blind according to claim 2, wherein the position is adjustable.