JPS6347267Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a louver window opening/closing device that simultaneously tilts each louver by moving up and down a connecting rod connecting each louver.

Prior Art A conventional device of this type has a worm that meshes with a worm wheel integrally having a connecting piece, and rotates the worm to tilt the connecting piece by rotating the worm wheel. A device is known (Utility Model Application No. 76889/1989) that tilts each louver by vertically moving a connecting rod by tilting. In addition, a ventilation louver is provided in the closet, and by rotating a rotating shaft as a mechanism for opening and closing the louver, a connecting rod is moved up and down via a crank mechanism provided at the tip of the rotating shaft, and each louver is tilted. A device (Utility Model Application No. 57-16555) is known.

However, the former method is impractical and expensive because it is troublesome to manufacture a worm foil that integrally has a connecting piece. In the latter case, when the rotating shaft is rotated, the connection part of each crank bends in a dogleg shape and protrudes upward, which increases the size of the entire device, and since it is a crank mechanism, it lacks durability. .

Purpose of the invention The object of the invention is to provide a louver window opening/closing device that is compact, stylish, and durable, allowing each louver to be tilted to any angle with a simple operation.

Structure of the invention According to the invention, the above object is achieved by rotatably providing a female threaded body within a frame, screwing a drive rod into a screw hole of the female thread, and moving the drive rod in the longitudinal direction by rotation of the female threaded body. The connecting rod is moved by the movement of the drive rod, and each louver is tilted.

Embodiments Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

In FIGS. 1 to 11, 1 is the upper frame of the window, 2 is the vertical frame, 3 is the pillar, 4 is the louver, and 5 is the connecting rod. Each louver 4 is tiltably attached to the vertical frame 2 at the arm 7 portion by a screw shaft 6, and is connected to the connecting rod 5 by a screw shaft 8.

The opening/closing device 10 shown in FIGS. 1 to 4, which tilts each louver 4 by vertically moving a connecting rod 5, has a female screw body 12 rotatably provided in a frame body 11 attached to a vertical frame 2. Drive rod 13 on body 12
The tip of this drive rod 13 is connected to the cam piece 14 by screwing them together.
The cam piece 14 is connected to the connecting rod 5 via the interlocking piece 15, and the female screw body 12 is rotated by a rotation mechanism, that is, a handle 16 in this embodiment, to move the drive rod 13 in its longitudinal direction. This causes the cam piece 14 to tilt, thereby moving the connecting rod 5 up and down.

As shown in FIG.
It has two sets of legs 19, 19 integrally with 7,
Screw shafts 20, 20 are attached to the legs 19, 19. As shown in FIG.
It extends diagonally laterally from 7. This frame body 11 is fixed to the vertical frame 2 with screws 45, 45.

As shown in FIG. 3, the female screw body 12 integrally includes a female screw portion 22 having a screw hole 21 and a shaft portion 24 having a guide hole 23 communicating with the screw hole 21, and the female screw portion 22 is hollow. It is rotatably provided so that it is located in the hollow part of the cylindrical part 18 and the tip of the shaft part 24 protrudes to the outside of the frame 11 through the hole 25 formed in the hollow cylindrical part 18 of the frame 11. There is. At the tip of the shaft portion 24, flat surfaces 26, 26 are formed with side portions partially cut out in the longitudinal direction, and a groove 27 is formed on the outer periphery.

As shown in FIG. 4, the drive rod 13 integrally includes a guide shaft portion 28, a male threaded portion 29, and an engaging body 30, and the guide shaft portion 28 is inserted into the guide hole 2 of the female threaded body 12.
3, the male threaded portion 29 is screwed into the screw hole 21.

The engagement body 30 is formed on the distal end side, and has an engagement groove 32 cut into the distal end side from the lower surface side and one plane 31 side and extending diagonally across the planes 31, 31.
It is formed from the lower surface side of and one plane 31. The drive rod 13 is prevented from rotating by a stop plate 33 attached to the leg portion 19 of the frame body 11 by means of screw shafts 20, 20, which abut against one flat surface 31.

The cam piece 14 is made of three pieces 34, 35, and 36 in a T-shape, and the pair of legs 1 is connected to one screw shaft 20 that attaches the stop plate 33 to the frame 11.
It is rotatably attached to the frame 11 between 9 and 19. The tip of the piece 34 is formed into an arc shape and engages with the engagement groove 32 of the drive rod 13. Piece 3
5 limits the maximum amount of protrusion of the drive rod 13 by coming into contact with the base 17 of the frame 11 when the drive rod 13 protrudes from the female threaded body 12.

The interlocking piece 15 has one end connected to the cam piece 14 by a pin 37.
The other end is rotatably connected to the connecting rod 5 by a screw 38.

The handle 16 includes a bowl portion 39 having a recess into which the tip of the shaft portion 24 of the female threaded body 12 is fitted, an arm portion 40 integrated with the bowl portion, and a grip portion attached to the tip of the arm portion by a screw shaft 42. 41, which is screwed into the bowl portion 39 and fixed to the shaft portion 24 with a set screw 43. Set screw 4
3 has its tip reaching the concave groove 27 of the shaft portion 24. A washer 44 is provided between the bowl portion 39 of the handle 16 and the hollow cylinder portion 18 of the frame 11, so that the handle 11 rotates smoothly with respect to the frame 11.

In this opening/closing device 10, when the handle 16 is rotated clockwise, the female threaded body 12 rotates in the same direction, and the drive rod 13 moves to the right in FIG. 14 is tilted to the state shown by the solid line in FIG. 1, the connecting rod 5 is raised, and each louver 4 is brought into the state shown by the solid line in FIG. 1, that is, the window is closed.

Also, when the handle 16 is rotated to the left, the female threaded body 1
2 rotate in the same direction, and the drive rod 13 protrudes leftward in FIG. 1 from the female threaded body 12, thereby causing the cam piece 14 to tilt counterclockwise in FIG. is lowered, and each louver 4 is tilted clockwise in FIG. 1 to open the window. In this case, when the cam piece 14 is tilted to the state shown by the two-dot chain line in FIG. 1, the piece 35 hits the base 17 of the frame 11, preventing the handle 16 from turning any further to the left. In this state, each louver 4 has its window fully opened as shown by the two-dot chain line in FIG.

According to this opening/closing device 10, the louver 4 can be tilted simply by rotating the female threaded body 12 with the handle 16, and the louver 4 can be set to any tilted state, that is, to any opening amount, depending on the amount of rotation of the female threaded body 12. can be kept.

The opening/closing device 50 shown in FIGS. 5 to 8 is the same as the opening/closing device 10 except that the female screw body 12 is rotated by a rotation mechanism 51 using a ball chain instead of the handle 16. It is composed of

The rotation mechanism 51 includes a bowl-shaped member 52 having a recess into which the shaft 24 of the female threaded body 12 is fitted, and a substrate 54 into which the shaft 53 of the bowl-shaped member 52 is rotatably fitted.
A chain sprocket 55 fitted onto the shaft portion 53, a ball chain 56 hooked onto the chain sprocket, and a screw 5 attached to the base plate 54.
7 and 57 to protect the chain sprocket 55, and the bowl-shaped member 52 is fixed to the shaft portion 24 by a set screw 43.

The chain sprocket 55 is shown in Figures 5 and 6.
As shown in the figure, this is a known device in which two discs 59, 59 are stacked and integrated, and an engaging portion 60 for locking a ball chain 56 is provided at the peripheral edge. is fixed to.

In this opening/closing device 50, when the ball chain 56 is pulled in one direction, the chain sprocket 55 rotates in one direction, and when the ball chain 56 is pulled in the other direction, the chain sprocket 55 is rotated in the other direction. This chain sprocket 55
The rotation is transmitted to the female threaded body 12 via the bowl-shaped member 52, and moves the drive rod 13 in the left and right directions in FIG. Therefore, this opening/closing device 50 also operates in the same manner as the opening/closing device 10, except that the female screw body is rotated by pulling the ball chain 56, and has the same effects.

The opening/closing device 70 shown in FIGS. 9 to 11 is a rotation mechanism in which a drive rod 72 is provided in a frame 71 attached to a vertical frame 2, a female screw body 73 is screwed onto this drive rod, and the female screw body is rotated. 74 is attached to the frame body 71, a cam piece 76 is locked to an engaging body 75 attached to the tip of the drive rod 72, and this cam piece 76 is attached to the interlocking piece 7.
7 to the connecting rod 5, the female threaded body 73 is rotated by a rotating mechanism 74 to move the drive rod 72 in its longitudinal direction, thereby tilting the cam piece 76 and moving the connecting rod 5 up and down. It's getting old.

The frame 71 includes a base 79 that is attached to the vertical frame 2 with screws 78, a hollow cylinder 80 extending diagonally laterally from the base, a flange 81 integral with the end of the hollow cylinder, and a pair of legs. 82, 82. A guide recess 83 is formed in the base portion 79, a storage recess 84 is formed in the flange portion 81, and a hole 85 is formed in the hollow cylinder portion 80 to communicate the guide recess 83 and the storage recess 84.

The drive rod 72 protrudes from the hole 85 into the storage recess 84, has a male threaded portion 86 formed at a location corresponding to the storage recess 84, and further has a shaft portion 87 on the distal end side of the male threaded portion 86.

The female threaded body 73 is fixed to the center of the chain sprocket 88 of the rotating mechanism 74.

The rotation mechanism 74 is a known mechanism using a chain sprocket 88 and a ball chain 89.
A chain sprocket 88 is located in the housing recess 84 of the flange portion 81. The storage recess 84
The flange portion 84 is closed by a lid 91 attached to the flange portion 81 with screws 90.

A guide hole 92 for guiding the shaft portion 87 of the drive rod 72 is formed in the lid 91 .

The engaging body 75 has a vertical wall 93 and a bottom wall 94.
The drive rod 72 is crimped and fixed to the vertical wall 93 to form a guide recess 83 of the frame 71.
It is stored in. An engagement hole 95 is formed in the bottom wall 94 of the engagement body 75, and rising walls 96, 96 are formed in parallel to each other on both sides of the bottom wall 94.

The cam piece 76 is almost L by the two pieces 97 and 98.
It is made in a letter shape, and the leg part 8 is connected by a screw shaft 20
It is rotatably attached to the frame body 79 between 2 and 82. The tip of the piece 97 is formed into an arc shape and engages with the engagement hole 95 of the engagement body 75.

The interlocking piece 77 has one end connected to the cam piece 7 by the pin 37.
The other end is rotatably connected to the connecting rod 5 by a screw 38.

In this opening/closing device 70, the chain sprocket 88 rotates in one direction when the ball chain 89 is pulled in one direction, and rotates in the opposite direction when the ball chain 89 is pulled in the other direction. The rotation of this chain sprocket 88 is controlled by the female threaded body 7.
3, thereby causing the drive rod 72 to move in the left and right directions in FIG.
Therefore, this opening/closing device 70 is also connected to the ball chain 8.
By pulling 9, each louver 4 can be tilted to an arbitrary angle.

Effects of the Invention As described above, the present invention has a hollow cylindrical portion and a base integrally, and a female screw body is rotatably provided in a frame that is fixed to a window frame, and the longitudinal direction of the hollow cylindrical portion of the frame is A drive rod having a male thread that engages with the female threaded body so as to be movable in the direction is provided, a cam piece that is tilted as the drive rod moves is provided on the frame body so as to be tiltable, and the female threaded body is rotated. Since a rotation mechanism is provided to connect the cam piece to the connecting rod, each louver can be tilted at any desired angle at the same time with a simple operation. In addition, since no bevel gears or worm wheels are used, manufacturing is easy and inexpensive, there are few wear parts, and it is highly durable, and it is small and good-looking.

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the opening/closing device according to the present invention, FIG. 1 is a longitudinal sectional view of the opening/closing device installed in a window, FIG. 2 is a sectional view taken along the - line in FIG. 1,
FIG. 3 is an exploded perspective view, and FIG. 4 is a perspective view of the drive rod. 5 to 8 show a second embodiment of the opening/closing device, FIG. 5 is a vertical sectional view of the opening/closing device attached to a window, FIG. 6 is a sectional view taken along the line -- of FIG. 5, and FIG. FIG. 6 is a perspective view taken along the - line in FIG. 6, and FIG. 8 is an exploded perspective view. Figures 9 to 11 show a third embodiment of the opening/closing device, Figure 9 is a vertical sectional view of the opening and closing device installed in a window, Figure 10 is a plan view of Figure 9, and Figure 11 is an exploded perspective view. It is. 4: Louver, 5: Connecting rod, 11, 71: Frame,
12, 73: Female threaded body, 13, 72: Drive rod, 1
4, 76: Cam piece, 16: Drive mechanism (handle),
17: Base, 18, 80: Hollow cylindrical part, 22: Female threaded hole, 29, 86: Male threaded part, 10, 50, 7
0: Opening/closing device, 51, 74: Rotating mechanism, 75: Engagement body.

Claims (1)

[Scope of utility model registration request] Internally threaded bodies 12, 73 are rotatably provided in frames 11, 71 which integrally have hollow cylindrical parts 18, 80 and bases 17, 79 and are fixed to the window frame. Male screw parts 29, 86 to be screwed together
The drive rods 13, 72 having the above frame bodies 11, 71
The hollow cylindrical portions 18, 80 are provided movably in the longitudinal direction, and the engagement grooves 32,
95, and cam pieces 14, 76 having pieces 34, 97 that engage with the engagement grooves 32, 95 are tiltably provided on the frames 11, 71. , 73, and the cam pieces 14, 76 are connected to a connecting rod 5 to which each louver 4 is connected.