JP2003343163A - Locking device for movable louver lattice - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device for a movable louver lattice, which is simple in structure, and adjusts the angle of louvers forming louver groups arranged side by side, by synchronously turning the louvers. <P>SOLUTION: According to the structure of the locking device, by maintaining a lock blade 58 at a locking position L and engaging a claw portion 61 with a locking step 43, an operating member 5 is fixed at an arbitrary angle. Thus, the louvers forming the louver groups arranged side by side are fixed at an angle corresponding to the angle of the operating member 5. When the louvers 21 forming the louver groups 2 are set at a desired angle, a projecting portion 51 of an operating portion 51 and a movable operating portion 60 are pinched by a thumb and a forefinger of the operator, and then the lock blade 58 is turned about a shaft 57 until an unlocking position U, against a spring 62. In this state of the lock blade 58, the operating member 5 is turned, and then the louvers forming the louver groups arranged side by side are synchronously turned. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable louver lattice locking device in which one louver group and the other louver group are arranged in parallel.

[0002]

2. Description of the Related Art As a conventional locking device for a movable louver lattice, for example, the one disclosed in Japanese Patent Laid-Open No. 58-153884 has been proposed. This locking device
An adjusting plate is fixed to the frame body of a movable louver lattice having a plurality of louvers pivotally supported on the frame body, and an operation lever is pivotally supported by rivets. A plurality of cutout grooves are formed on the peripheral surface of the adjusting plate. One end of the operation lever is pivotally supported by an elevating member linked to a plurality of louvers, and the other end of the operation lever is provided with a stopper that is biased by a spring and engages with a notch groove of the adjusting plate. A lever handle is provided.

In such a structure, when the lever handle is operated to disengage the stopper from the notch groove of the adjusting plate against the spring, the unlocked state is established and the operation lever can be rotated. When the operation lever is rotated, the elevating member moves up and down accordingly, and the plurality of louvers synchronously rotate, and the opening angle can be adjusted. When the lever handle is stopped after adjusting the louver to the desired angle, the stopper is urged by the spring to engage with the cutout groove of the adjusting plate, and the louvers are locked at the desired angle. It will be.

[0004]

However, for example, when the above-mentioned conventional locking device is used for the movable louver lattice in which a louver group composed of a plurality of louvers is provided on the left and right of the central frame portion, for each louver group. The adjusting plate and the operating lever that constitute the locking device must be arranged in the. Moreover, since the operating lever has to be pivoted separately from the louvers by means of rivets, the structure becomes complicated in combination with the fact that the locking device must be arranged for each louver group.

When adjusting the angle of the louver,
Since it is necessary to operate the operation lever of the individual locking device provided for each louver group, the operation for adjusting the angles of both louver groups becomes complicated. Further, as is preferable in appearance, the operation for matching the angles of the louvers of both louver groups becomes complicated.

The present invention has been made in view of the above-mentioned problems of the related art, and the angle adjustment is performed by synchronously rotating the louvers constituting the louver group arranged side by side while having a simple structure. It is an object of the present invention to provide a movable louver lattice locking device that can be used.

[0007]

In order to solve the above problems, in the invention according to claim 1, at least a pair of side frame parts and a central frame part arranged in parallel between the pair of side frame parts. And one louver group and the other louver group, each of which includes a plurality of louvers pivotally supported between the side frame portion and the central frame portion of the frame body, and each louver group. A locking device of a movable louver lattice having a linking member linked to each louver, for synchronously rotating the louvers constituting each of the louver groups, the locking device including a fixing member and an operating member, wherein the fixing member is A fixed part fixed to the central frame part and a plurality of lock step parts provided on a curved peripheral surface part, wherein the operating member includes an operating part and both sides of the central frame part from the operating part. And a pair of arm portions extending to To have a connecting means for connecting the arm portions on a pair of louvers adjacent via the said central frame portion in each louver group, and a locking means for selectively engaging said locking stepped portion.

Therefore, when the locking means is selectively engaged with any one of the lock step portions, the angle of the operating member changes according to the position of the engaged lock step portion. When the angle of the operating member changes, the angle of a pair of louvers adjacent to each other via the central frame portion in each louver group changes accordingly,
Further, along with this, all the louvers constituting each louver group linked via the linking member rotate at the same angle. Therefore, by operating the operating member,
All the louvers constituting one louver group and the other louver group arranged side by side via the central frame portion can be synchronously rotated at the same angle, and the louvers can be adjusted to the same angle and fixed. Moreover, since it is not necessary to provide a lock device for each louver group and the operation member does not need to be pivotally supported separately from the louver, the structure is simple. Therefore, even with a simple structure, it is possible to rotate the louvers constituting the juxtaposed louver group synchronously to adjust the angle and fix the louvers at the same angle.

Further, in the invention according to claim 2, a first projection pivotally supported by the central frame portion and a second projection pivotally supported by the linking member are provided at end portions of the respective louvers. Is provided, and the connecting means is a first hole and a second hole that are fitted into the first protrusion and the second protrusion, respectively. Therefore, the arm can be connected to the pair of louvers in each louver group by a simple operation of fitting the first hole in the first protrusion and fitting the second hole in the second protrusion.

Further, in the invention according to claim 3, the lock means includes a lock piece pivotally supported by the operation portion,
Urging means for urging the lock piece in a direction to engage with the lock step portion. Therefore, by engaging the lock piece with the lock step portion of the fixing member, all the louvers constituting one louver group and the other louver group arranged in parallel through the central frame portion are fixed at the same angle. be able to.

Further, in the invention according to claim 4, the lock piece has a claw portion at a tip end portion which engages with the lock step portion and a movable operation portion at a base end portion. The biasing means is interposed between the section and the operation section. Therefore, the operation end portion and the movable operation end portion can be held by a finger, and the lock can be released by an easy operation of rotating the lock piece.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view of the frame body 1 of the movable louver lattice according to the present embodiment as seen from the back surface side. The frame body 1 has an upper frame portion 11 and a lower frame portion 1 whose ends are coupled to each other.
2. It has a left frame portion 13 and a right frame portion 14. At the center between the left and right frame parts 13 and 14, the upper and lower end parts are arranged at the upper and lower frame parts 1.
A central frame portion 15 is provided which is coupled to the first and the second side portions 12 and extends in parallel with the left and right side frame portions 13 and 14. Further, on the inner side surfaces of the left and right side frame portions 13 and 14 and both inner side surfaces of the central frame portion 15, as shown in FIG. 2A, a plurality of assembly holes 16 are provided at equal intervals. Note that FIG. 2B is a view of the frame body 1 viewed from the front side.

The left window portion 17 which is the space between the left frame portion 13 and the central frame portion 15 and the right window portion 18 which is the space between the right frame portion 14 and the central frame portion 15 are shown in FIG. As shown, a left louver group 2L and a right louver group 2R (hereinafter, the left and right louver groups 2L and 2R are collectively referred to as the louver group 2) are provided.

Each louver group 2 is composed of a plurality of louvers 21 arranged in parallel at the same intervals and in the same number. A slit 22 is formed at the end of each louver 21 as shown in FIG. 4, and an adapter 3 as a support member is fitted therein. The adapter 3 has a U-shaped cross section and holds the end of the louver 21.
1, a rib 32 provided in the holding portion 31 for engaging with the slit 22, and a first protrusion 33 and a second protrusion 34 protruding outside the holding portion 31 in a direction along the surface of the louver 21. And are provided. Then, the first protrusion 33
Is rotatably inserted into the assembling hole 16, and the second protrusion 34
Is rotatably inserted in a link member 8 extending in the vertical direction.

On the other hand, as shown in FIG. 5, the central frame portion 1
A concave portion 19 is formed on the lower side of the surface 5 and on the surface side. The fixing member 4 of the lock device 9 including the fixing member 4 and the operating member 5 is fixed to the recess 19. As shown in FIGS. 6 and 7, the fixing member 4 has a semicircular peripheral surface portion 41, and a pair of fixing portions 42, 42 are provided inside the peripheral surface portion 41 so as to project. In addition, the peripheral surface portion 41
A plurality of lock step portions 43 are formed in a ratchet shape on the outer peripheral portion of the
It is formed at an equal pitch. The fixing member 4 has the center C thereof inserted into the first projection 33 of the adapter 3 and a pair of adjacent louvers pivotally supported on both sides of the recess 19 (hereinafter, this louver is referred to as a specific louver). Align the recesses 19 with the assembling holes 16 that are installed.
A screw 7, which is screwed into the fixing portion 42, 42 through the
It is fixed on the recess 19 by 7.

On the other hand, as shown in FIGS. 5 and 8, the operation member 5 has an operation portion 51 having a rectangular shape in a plan view and a substantially U-shaped vertical section at one end. A bulging portion 52 bulging to the front side is formed on the operating portion 51, a locking projection 53 is provided on the back side of the bulging portion 52, and stoppers bent in opposite directions are provided at lower portions on both sides. 63 are provided. Further, a pair of arm portions 54, 54 are provided in parallel on both sides of the operation portion 51 at an interval approximately the same as the width of the central frame portion 15 or at a slightly wider interval. The arm portions 54, 54 have a V shape in which the tip end side is bent slightly downward, and the first protrusion 33 and the second protrusion 34 are provided.
The first holes 55 and the second holes 56 are formed at the same intervals as the intervals between.

On the back side of the operating section 51,
A lock piece 58 having a substantially V-shaped cross section is pivotally supported between the arm portions 54, 54 along a bent portion 59 by a shaft 57. The lock piece 58 is provided on the proximal end side of the bent portion 59 and has a wide area which is slightly smaller than the operation portion 51, and a movable operation portion on the distal end side of the bent portion 59. It has a narrow-width claw portion 61 projectingly provided in the central portion of 60. Further, a spring 62 as an urging means, one end of which is fixed by the locking projection 53, is interposed between the operating portion 51 and the movable operating portion 60 so as to be able to extend. As a result, the lock piece 58
Is biased to the lock position L where the movable operating portion 60 shown by the solid line in FIG. 5 abuts against the stopper 63, and is rotated against the spring 62 by the operation, so that It is configured so that it can rotate to the unlocked position U shown.

Then, the operating member 5 fits the first hole 55 and the second hole 56 into the first projection 33 and the second projection 34 of the adapter 3 connected to the specific louver. As a result, it is connected to the specific louver via the adapter 3. Further, in this coupled state, the claw portion 61 of the lock piece 58 is engaged with the lock step portion 43 at the lock position L, and the claw portion 61 is disengaged from the lock step portion 43 at the unlock position U. ing.

In the present embodiment having the above-mentioned structure, the lock piece 58 is provided when the operation member 5 is not operated.
Is maintained at the lock position L, and the pawl portion 61 is locked by the lock step portion 43.
As illustrated in FIG. 5, by engaging with (a)
The operation member 5 is fixed at an arbitrary angle such as (b) and (c). As a result, the specific louver is also fixed at the corresponding angle, and further, the louver 21 that constitutes each louver group 2 is also fixed at the corresponding angle.

When it is desired to set the louvers 21 constituting each louver group 2 at a desired angle, the bulging portion 52 of the operating portion 51 and the movable operating portion 60 are held by the thumb and forefinger. Then, the lock piece 58 rotates around the shaft 57 against the spring 62 to the unlock position U. As a result, the operating member 5 can be rotated in the vertical direction about the first protrusion 33 of the adapter 3 included in the specific louver. Further, when the operation member 5 is rotated, the specific louver is also rotated in synchronization with this, and further, the louvers 21 that configure each louver group 2 are also rotated in synchronization.

When the louvers 21 constituting the louver group 2 reach a desired angle, the fingers are released from the operating member 5, and the lock piece 58 is rotated by the urging force of the spring 62 to return to the lock position L. Then, the claw portion 61 engages with any one of the lock step portions 43. As a result, the specific louver is fixed at a desired angle, and further, the louvers 21 forming each louver group 2 are also fixed at a desired angle.

Therefore, the louvers 21 constituting each louver group 2 are synchronized with each other by a very simple operation of rotating the operating portion 51 while holding the bulging portion 52 of the operating portion 51 and the movable operating portion 60. It is possible to fix the angle of.

In this embodiment, the arm portions 54, 54 of the operating member 5 are connected to the first protrusion 33 of the adapter 3.
Although it is configured to be coupled to the specific louver via the second protrusion 34 and the second protrusion 34, the arm portions 54, 54 may be directly coupled to the end surface of the specific louver or the like.

[0024]

As described above, according to the present invention, by operating the operating member, all the louvers constituting one louver group and the other louver group arranged in parallel through the central frame portion. Can be synchronously rotated to the same angle, and can be fixed by adjusting the angle to the same angle. Moreover, since it is not necessary to provide a lock device for each louver group and the operation member does not need to be pivotally supported separately from the louver, the structure is simple. Therefore, even with a simple structure, it is possible to rotate the louvers constituting the juxtaposed louver group synchronously to adjust the angle and fix the louvers at the same angle.

Further, according to another structure of the present invention, a support member having a first projection pivotally supported by the central frame portion and a second projection pivotally supported by the linking member is provided at the end of each louver. Provided,
Since the connecting means with the louver is the first hole and the second hole that are fitted into the first and second protrusions, respectively, the first hole is fitted into the first protrusion and the second protrusion is fitted into the first protrusion. The arm can be connected to the pair of louvers in each louver group by a simple work of fitting the second hole.

Further, since the lock means has the lock piece pivotally supported by the operating portion and the biasing means for biasing the lock piece in the direction of engaging the lock step portion, the lock piece is provided. With a simple structure in which the louver engages with the lock step portion of the fixing member, it is possible to fix all the louvers constituting one louver group and the other louver group arranged in parallel through the central frame portion at the same angle. it can.

Further, the lock piece has a claw portion at a tip end portion which engages with the lock step portion and a movable operation portion at a base end portion, and a biasing means is provided between the movable operation portion and the operation portion. With the configuration in which the operation end portion and the movable operation end portion are held by fingers,
The lock can be released by an easy operation of rotating the lock piece.

[Brief description of drawings]

FIG. 1 is a view of a frame body of a movable louver lattice according to the present embodiment as viewed from the back surface side.

FIG. 2A is a side view of the right frame portion, and FIG. 2B is a partial view of the frame body seen from the front side.

FIG. 3A is a side view of a central frame portion, and FIG. 3B is a partial view of a frame body having a louver portion group as viewed from the front side.

FIG. 4A is a horizontal cross-sectional view of a left frame portion in which a louver is pivotally supported, and FIG. 4B is a horizontal cross-sectional view of a central frame portion in a state in which only the louver of the left louver group is pivotally supported.

5 is an enlarged view of part A of FIG.

6 is a cross-sectional view of a state in which only a fixing member corresponding to part A of FIG. 3 is mounted.

FIG. 7 is a front view corresponding to FIG.

FIG. 8 is a horizontal cross-sectional view of an upper portion of a portion where a fixing member and an operating member are provided.

[Explanation of symbols]

1 frame 2 louvers 2L left louver group 2R right louver group 3 adapter 4 fixing members 5 Operation member 7 screws 8 link members 9 Lock device 13 Left frame 14 Right side frame 15 Central frame 21 louvers 33 First protrusion 34 Second protrusion 41 peripheral surface 43 Lock step 51 Operation part 52 Bulging part 54 Arm 55 First hole 56 Second hole 57 axes 58 lock pieces 61 Claw 62 spring L lock position U unlock position

Claims (4)

[Claims] 1. A frame body having at least a pair of side frame portions and a central frame portion arranged in parallel between the pair of side frame portions,
One louver group and the other louver group consisting of a plurality of louvers pivotally supported between each of the side frame portions and the central frame portion of the frame body, and the other louver group, and a linkage linked to each louver constituting each louver group. A locking device for a movable louver lattice, which has a member and rotates the louvers constituting each louver group in synchronism, the locking device including a fixing member and an operating member, wherein the fixing member is fixed to the central frame portion. And a pair of arms extending from the operating portion to both sides of the central frame portion, the operating member having a fixed portion and a plurality of lock step portions provided on a curved peripheral surface portion. And a connecting means for connecting the arm portion to a pair of louvers adjacent to each other via the central frame portion in each louver group, and a locking means for selectively engaging the lock step portion. Characterized by having That the movable louver lattice of the locking device. 2. A support member having a first protrusion pivotally supported by the central frame portion and a second protrusion pivotally supported by the linking member is provided at an end of each louver, and the connecting means is provided. The locking device for the movable louver lattice according to claim 1, wherein is a first hole and a second hole that are fitted into the first protrusion and the second protrusion, respectively. 3. The lock means has a lock piece pivotally supported by the operation portion, and a biasing means for biasing the lock piece in a direction to engage the lock step portion. Movable louver lattice locking device. 4. The lock piece has a claw portion at a tip end portion that engages with the lock step portion and a movable operation portion at a base end portion, and the attachment is provided between the movable operation portion and the operation portion. The movable louver lattice locking device according to claim 3, wherein a biasing means is interposed.