JPH0754420Y2 - Ceiling mounted louver blade mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] "Industrial field of application" The present invention relates to a blade mounting structure for a ceiling-mounted louver that adjusts and shields sunlight incident from the ceiling by tilting the blades. Particularly, the present invention relates to a blade mounting structure suitable for supporting the blade in a cantilever manner.

[Prior Art] As a conventional example in which a blade is supported by a ceiling-mounted louver in a cantilever manner, there is a ceiling-mounted louver blade mounting structure disclosed in Japanese Utility Model Laid-Open No. 64-24211. The conventional example has a row of blades orthogonal to each other on the lower side of the horizontal frames arranged side by side, and the tip of a mounting arm rotatably mounted on the lower edge of the horizontal frame projects downward from the lower surface of the horizontal frame. The rear end is rotatably attached to a connecting rod that interlocks each attachment arm, and a leaf spring holder is fixed to the tip of the attachment arm, and the side edge on the root side of the blade is detachably attached to the holder. 9th
As shown in the figure, the holder 12 bends one end of the base portion 12a that abuts the tip of the mounting arm 13 into a hook shape to provide one locking groove 12b parallel to the longitudinal direction of the blade 1 and the other end thereof. The locking groove 1
2b is bent into a substantially C-shape so that its opening is opposed to another locking groove 12d, and the other locking groove 12d is formed at the tip of the other end.
The leading end 1a of the blade 1 overlaps with the root of the adjacent blade 1, and the blade 1 rotates into the one locking groove 12b of the holder 12 at the root of the blade 1. The engaging projection 1g to be fitted is engaged with the introducing portion 12e of the other engaging groove 12d bent in the C-shape, and the introducing portion 12e is expanded and fitted into the other engaging groove 12d. This is a blade mounting structure for a ceiling-mounted louver equipped with locking projections 1d, and can be mounted by a single person without using a tool to mount the blade on the mounting arm. It is also possible to remove the blade. Further, since no screw or the like appears on the blade surface, there is an effect that the louver is beautiful when the louver is fully opened or half opened.

[Problems to be Solved by the Invention] In the above description, the blade 1 is usually made of an aluminum extruded mold material, and the base side, which is a mounting portion, has an integral structure. The distance between the locking groove 12b and 12d is extremely smaller than the width of the blade from the tip 1a of the blade 1 to the blade base 1b. for that reason,
A large static force is applied to the portion of the leaf spring base material that is bent into a hook shape to form the locking groove 12b on the tip side of the holder 12 when the blade is closed. Further, when the blade is closed, a rotational force is further applied to the blade by the holder, but the inertial force of the blade 1 is large and this force opposes around the engaging groove 12b. Furthermore, the air resistance applied to the blades when the blades are opened and closed is also added to the spring portion forming the locking groove 12b.

Due to the static and dynamic force generation as described above, the blade locking protrusions 1g may come off from the locking groove 12b of the holder 12 that locks the blades. The holder 12 may be damaged and the blade 1 may drop.

Furthermore, when foreign matter is caught between the blades 1 and 1 or the horizontal frame arranged orthogonal to the blades 1 when the blades 1 are closed, the opening and closing force of the blades concentrates on that portion and the plate is closed. The spring holder 12 will be damaged.

An object of the present invention is to solve the problems of the conventional example described above and to provide a blade mounting structure for a ceiling-mounted louver in which the blades are firmly mounted while maintaining the simple points of mounting and replacing the blades of the conventional example. To do.

[Means for Solving the Problem] A first invention of the present invention has a row of blades orthogonal to a horizontal frame arranged in parallel, and a blade mounting portion is provided at the tip of a mounting arm rotatably mounted on the horizontal frame. In the blade mounting structure of a ceiling-installed louver having a mounting portion to be mounted, the blade mounting portion of the mounting arm and the blade mounting portion are opposed to each other, and each has an engaging portion in the same direction as the longitudinal direction of the blade. The joints are provided at two places with a space in the same direction as the width of the blades, and are fitted together,
A space portion is provided between the mounting arm and each mounting portion of the blade between the engaging portions, and a stopper for preventing the blade from coming off the blade mounting portion of the mounting arm is inserted in the space portion. This is a blade mounting structure for a characteristic louver installed on the ceiling.

A second invention of the present invention is a ceiling-mounted louver having a row of blades orthogonal to side-by-side horizontal frames and provided with a mounting portion for mounting a blade mounting portion at the tip of a mounting arm rotatably mounted on the horizontal frame. In the blade mounting structure, the blade mounting portion of the mounting arm and the blade mounting portion are opposed to each other, and each of the mounting portions is provided with a catcher fitting groove in the same direction as the longitudinal direction of the blade. Is fitted with a catcher for connecting the mounting portion of the mounting arm and the mounting portion of the blade, and the blade mounting portion of the mounting arm is provided with a retaining member for the catcher. It is a blade mounting structure.

[Operation of device] (Operation of first device) When attaching the blade, hold it with the blade, shift the blade and the mounting portion of the mounting arm in the width direction of the blade so as to abut against each other, and shift the blade in the width direction of the blade. Then, the blade and the engaging portion of the mounting arm are fitted to each other, and the stopper is inserted into the space between the mounting portions. This prevents the blade from coming off the mounting arm. When removing the blade, it is the reverse of the above. Attaching the blade to the mounting arm,
Easy to remove, the blades are firmly fixed to the mounting arm, and there is no risk of falling.

(Operation of the second invention) When attaching the blade, fit the retaining member of the catcher into the catcher fitting groove of the blade, and hold the blade by hand so that the mounting arm and each fitting groove of the blade face each other. , Abut the mounting part of the blade and the mounting part of the blade, move the catcher through the catcher fitting groove of the mounting part of the blade and fit it into the catcher fitting groove of the mounting part, and catch it on the blade mounting part of the mounting arm. Attach the retaining member of. The blades are firmly fixed to the mounting arm and there is no risk of falling.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

(Overall Configuration) First, the overall configuration of the ceiling-mounted louver will be described with reference to FIGS. 7 and 8. Incidentally, in FIG. 8, both the mounting arms and the mounting portions of the blades are shown in the first embodiment described later.

FIG. 7 is a perspective view showing the entire ceiling-mounted louver. The horizontal frame 2 is arranged in parallel on one row of blades arranged in parallel. Drive devices 3 and 4 are provided on the horizontal frame 2, and the drive devices 3 and 4 are connected by a drive shaft 5.

FIG. 8 is a side view of the ceiling-mounted louver. The lateral frame 2 has a crank arm 7 and a crank arm 7 whose one end is fixed to the output shaft 21 of the drive device 3, 4 coaxial with the drive shaft 5.
Via a push rod 9 connected to the other end of the pin with a pin 8.
A connecting rod 11 connected by 10 is housed. The mounting arm 13, one end of which is rotatably connected to the connecting rod 11 by the pin 6, is rotatably supported by the pin 14 at the lower edge of the horizontal frame 2 and protrudes from the lower surface of the horizontal frame 2. It is distributed. A mounting portion 15 for mounting the blade 1 is provided on an end portion of the mounting arm 13 projecting from the lower surface of the lateral frame 2, and the mounting portion 15 has an edge portion on one side along the longitudinal direction of the blade 1. The mounting portion 16 provided on the base portion 1b is fixed.

In the drive unit 3, a motor (hereinafter referred to as a motor) 18 with a speed reducer and a worm speed reducer 19 are mounted on a base 17, and the output shaft of the motor 18 is connected via a shaft coupling 20 to the worm speed reducer 19.
Is connected to the input shaft of. The worm reducer 19 incorporates a worm and a worm wheel pair that meshes with the worm. An L-shaped dock 22 is fixed to the output shaft 21 of the worm speed reducer 19. When the dock 22 pushes the microswitches 23a and 23b fixed to the base 17, the motor 18 is controlled to stop. 24,25 is
A control panel and a transformer for the motor 18. The drive device 4 is
Although the transformer 25 and the control panel 24 are not provided, the other components are the same as those of the driving device 3. The motors 18 provided in the driving devices 3 and 4 are wired 26 (FIG. 7) so that they are simultaneously energized.
It is controlled by two control boards 24. The control panel 24 and the operation panel 27 that can be operated on the ground are connected by wiring. In addition, the drive device 3,
The output shafts 21 of the respective worm speed reducers 4 are synchronized by connecting with the drive shaft 5 via the shaft joint 28.

In FIG. 8, when the dock 22 is in the actual battle position and the micro switch 23b is pressed, the blade 1 is in the horizontal position as shown in the middle of FIG.
Overlap with the base portion 1b of the adjacent blade 1. When the motor 18 is biased in the direction to open the blade 1, the rotational force input to the input shaft of the worm speed reducer 19 through the shaft coupling 20 is decelerated and the output shaft 21 is rotated counterclockwise in FIG. Rotate to. At the same time, the drive shaft 5 connected to the output shaft 21 also rotates in the same direction. In FIG. 8, since the crank arm 7 rotates counterclockwise, the connecting rod 11 is pushed to the right through the push rod 9, and the connecting rod 11 moves to the right so that each part draws an arc around each pin 14. As the mounting arm 13 rotates in the clockwise direction around the pin 14, the blade 1 also rotates in the same direction, and the space between the rows of blades 1 can be opened as shown on both sides of FIG. it can.

By stopping the motor 18 with the operation panel 27 at hand, the blade 1 can be stopped halfway open at a desired angle. If the operation panel 27 is not stopped, the dock 22 rotates counterclockwise about the output shaft 21 in FIG.
Hit the microswitch 23a. The motor 18 is stopped based on the signal from the microswitch 23a, and the blade 1 is fully opened as shown on both sides of FIG.

The closing operation is the reverse of the above, and the tip portion 1a of the blade 1 comes into contact with the light-shielding packing 34 provided on the mounting portion of the mounting arm 13 at the closed position.

(First Embodiment) FIG. 1 is a side view of a first embodiment of the present invention, and FIG. 2 is a perspective view of FIG. Blade mounting part 15 of mounting arm 13 and blade 1
The mounting portions 16 provided on the base portion 1b of are opposed to each other. Each mounting part
15 and 16 respectively have a plurality of engaging portions 15a, 16a, 15b and 16b in the same direction as the longitudinal direction of the blade 1. The engaging portions 15a, 15b of the attaching portion 15 of the attaching arm and the engaging portions 16a, 16b of the attaching portion 16 of the blade are fitted together.

The mounting arms 13 and the mounting portions 15 and 16 of the blade 1 have engaging portions 15a and 15b, respectively.
A space 33 is formed between the engaging portions 16a and 16b, and a stopper 31 made of a leaf spring is inserted into the space 33, and a projection 32 provided on the stopper 31 and a mounting portion 15 for the mounting arm 13 are provided. A retaining hole 15d provided in the flat surface portion 15c of the base portion 15f is adapted to be fitted.

The mounting portion 15 of the mounting arm 13 is fastened by a through bolt and a nut (not shown) which are inserted through the bolt hole 13a at the tip of the mounting arm and the bolt hole 15e of the mounting portion 15. Mounting part 15 is mounting arm
Although it is a separate member from 13, it may be formed integrally with the mounting arm 13.

The engaging portion 15b of the attaching portion 15 provided on the attaching arm 13 is located at the most tip side when viewed from the attaching arm 13, and has a hook shape facing the base portion 1b direction from the tip portion 1a of the blade 1, and the engaging portion 15a has a hook shape in which the direction of the tip of the engaging portion 15b is the same as that of the engaging portion 15b at a distance from the engaging portion 15b. When the blade 1 is closed, the engaging portion 15b is attached to the mounting portion 1b.
The length of the 5 depending from the base portion 15f is longer than the length of the engaging portion 15a.

The cross sections of the engaging portions 16a, 16b provided on the mounting portion 16 of the blade 1 are hook-shaped in the same direction as the tip direction of the blade 1. In the closed position of the blade 1, the height of the engaging portion 16a rising from the blade base portion 1b is higher than the height of the engaging portion 16b. As shown in FIG. 1, the engaging portions 15a and 15b of the attaching portion 15 of the attaching arm and the engaging portions 16a and 16b of the attaching portion 16 of the blade are in contact with each other except for a hook-shaped rear surface and the respective top surfaces thereof. Can be contacted with the mating attachment part to be fitted. For this reason, the base portion 15f of the mounting portion 15 is provided with a ridge 15h which is in contact with the top surface of the engaging portion 16b of the blade mounting portion 16.

Opposing flat surface portions 15c and 16c of the mounting portions 15 and 16, the rear surface of the engaging portion 16b of the mounting portion 16 of the blade 1, the rear surface of the engaging portion 15a of the mounting portion 15 of the mounting portion arm 13, and the side surface of the ridge 15h. As a result, the space portion 33 having a rectangular cross section is formed in the assembled state.

The stopper 31 is a leaf spring that is roughly folded in half, and its width is slightly smaller than the width of the space 33. The stopper 31
Is a flat part 16c of the blade mounting part
Has a flat surface portion 31b in contact with, and the front end is a bent end portion 31c bent toward the mating bending piece. The mating bent piece is bent from the inclined surface portion 31d to form a flat surface portion 31e that is in contact with the flat surface portion 15c of the mounting portion 15 of the mounting arm 13 in the assembled state. The flat portion 31e is formed so that the flat portions 31b and 31e are apart from the parallel state in the disassembled state. The tip of the flat surface portion 31e is bent so as to be parallel to the end surface of the mounting portion 15 of the mounting arm to form a crank-shaped handgrip 31f. The protrusion 32 provided on the stopper 31 described above is formed on the flat surface portion 31e.

The projection 32 provided on the stopper 31 and the hole 15d provided in the mounting portion 15 of the mounting arm are reversed in relation to each other, and a projection protruding from the flat surface portion 15c of the mounting portion 15 into the space 33 is provided. It may be provided on the flat surface portion 31e of the stopper 31.

The tip portion 1a of the blade 1 is a flat surface that is substantially parallel to the intermediate portion 1c in which the inclined portion 1d is provided from the intermediate portion 1c and is stepped down. Since the mounting portion 16 is provided on the root side of the blade 1, the base oblique portion 1i is provided to provide the base portion 1b described above, and the mounting portion 16 is formed on the base portion 1b. The rear end of the middle portion 1c of the blade is separated from the root oblique portion 1i to form an extension portion 1e. The end of the extension portion 1e is located at a position separated from the mounting portion 15 of the mounting arm 13 in the assembled state. The base portion 1b of the blade is provided with a groove 1f whose opening faces the adjacent blade 1 when the blade 1 is closed. A light-shielding packing 34 having a substantially cross-shaped cross section for shielding light is fitted in the groove 1f, and the tip of the packing 34 contacts the tip 1a of the adjacent blade 1 with the blade 1 closed. It has become.

The attachment / detachment of the blade 1 will be described. It is preferable to attach and detach the blade 1 at a position where the blade 1 is opened. To attach the blade 1 to the mounting arm 13, hold the blade 1 so that the tip 1a of the blade 1 hangs downward, and the tip of the extension 1e from the intermediate portion 1c of the blade 1 attaches to the mounting arm 13. Mount the arm mounting portion 15 and the blade mounting portion 16 so that they are located near the back of the engaging portion 15b at the tip of 15
Face each other. Then, the engaging portions 15a, 16a and the engaging portions 15b, 1
The surface through the tip of 6b is in the retracted position. And the base portion 1b of the blade 1 in the direction orthogonal to the plate surface of the intermediate portion 1c of the blade 1.
When is moved toward the mounting portion 15 of the mounting arm 13, the top surface of the engaging portion 16a of the mounting portion of the blade 1 comes into contact with the end of the base portion 15f of the mounting portion 15, and the top surface of the engaging portion 16b is located at the mounting arm. It contacts the top surface of the ridge 15h of the mounting portion 15. When the force lifting the blade 1 is released, the blade 1 descends by its own weight, and the engaging portion 15a of the mounting portion of the mounting arm, the engaging portion 16a of the mounting portion of the blade, and the engaging portion 15b of the mounting portion of the mounting arm 15b.
And the engaging portion 16b of the blade attachment portion are engaged with each other to form a space 33 between the attachment portions 15 and 16. Here, bend the stopper 31
When it is inserted into the space 33 from the side of 31a, the slope portion 31d and the mounting portion 15
Although the end face angle of the flat surface portion 15c slides into the flat surface portions 31b and 31e so as to come close to each other, the protrusion 32 of the stopper comes into contact with the end surface of the mounting portion 15. Here, when the handle 31f is pressed against the elastic force and the space between the flat portions 31b and 31e of the stopper is contracted, the protrusion 32 becomes the space portion 33.
It will be able to enter inside, so push it in, and when it is pushed in a little, release the pressing force of 31f on the plate surface and the protrusion 3
2 returns by the elasticity of the stopper 31 as a leaf spring and presses the flat surface portion 15c of the mounting portion 15 of the mounting arm. As it is stopper 3
When 1 is pushed into the space 33, the protrusion 3 provided on the stopper 31
When 2 and the retaining hole 15d formed in the mounting portion 15 of the mounting arm match, the elastic force of the stopper 31 causes the opening protrusion between the flat portions 31b and 31e to fit into the hole 15d of the mounting portion 15 of the mounting arm. Such stopper 3
The mounting of 1 is performed on both ends of the mounting portion 15 of each mounting arm. As a result, a spring force as a leaf spring of the stopper 31 is applied in a direction in which the opposing surfaces of the flat surface portion 15c of the mounting portion 15 of the mounting arm and the flat surface portion 16c of the blade mounting portion 16 are separated, and the blade 1 is mounted on the mounting arm 13. To be The mounting of one blade 1 on the mounting arm 13 provided on each lateral frame 2 is repeated. stopper
Since the protrusion 32 of 31 is fitted in the hole 15d of the mounting portion 15 of the mounting arm, it cannot be pulled out by vibration or the like.

To remove the blade 1 from the mounting arm 13, use the stopper handle 31f
If you press against the elastic force of the stopper 31 to reduce the space between the flat portions 31b and 31e, the protrusion 32 of the stopper 31 will be pulled out from the retaining hole 15d of the mounting portion 15 of the mounting arm, so while pressing the handle 31f, slightly push the stopper 31. Pull out from the space 33, then handle 31f
Grasp the stopper and pull out the stopper 31 from the space 33. Then, the blade 1 is moved in the opposite direction to the one attached to the mounting arm 13 and removed.

In this first embodiment, the force due to the weight of the blade 1 is
Even when closed, it does not work to disengage the engaging portions 15a and 16a, 15b and 16b, and each mounting portion 15 and 16 receives a force in the direction of separating by the spring force of the stopper 31, and each engaging portion 15a and 16a, 15b and
The hook-shaped inner surfaces of the tips of 16b are pressed against each other, and the stopper 31 restricts the movement of each engaging portion in the disengaging direction, so that the blade 1 can be safely attached to the mounting arm 13. Hold firmly.

In the first embodiment, the engaging portions 15a, 15b of the mounting portion 15 of the mounting arm 13,
The engaging portions 16a, 16b of the mounting portion 16 of the blade 1 are square hooks, but are not limited to the square hooks, and the protrusions in the same direction as the direction from the tip of the blade toward the root are attached to the mounting portion of the mounting arm. The same effect can be achieved by providing a groove and a groove and providing a groove that fits the protrusion and the groove at the root of the blade.

FIG. 6 (a) is a perspective view of another embodiment of the stopper used in the first embodiment, and FIG. 6 (b) is a side sectional view of FIG. 6 (a). The stopper 65 is a leaf spring which is roughly folded in half, and its width is slightly smaller than the width of the space 33 between the mounting portion 15 of the mounting arm 13 and the mounting portion 16 of the blade 1. One side bent at the bent portion 65a has a flat surface portion 65b in contact with the flat surface portion 16c of the mounting portion 16 of the blade 1, and the root portion 65c bent from the flat surface portion is further folded back for removal. The end is 65e. The other side bent at the bent portion 65a becomes a sloped portion 65d,
The end of the sloped portion 65d is bent outward by 90 degrees, and the bent corner portion 65f is in contact with the root portion 65c in a natural state and the bent end portion
The edge of 65g is the bent end portion 65e for removal of the root portion 65c described above.
Is in contact with.

The flat surface portion 65b is provided with a lateral shift stopper portion 65h adjacent to a corner portion between the flat surface portion 65b and the root portion 65c. The stopper portion 65h has a V-shaped cross section and is deepened toward the front end, the front end portion 65i of the stopper portion 65h extends outward from the flat surface portion 65b, and is rearward when viewed from the bent portion 65a. It has a cutting edge shape that projects diagonally toward it.

The base portion 65c has a lateral shift stopper portion at a corner with the flat surface portion 65b.
A hole 65j is provided corresponding to 65h.

When the stopper 65 having such a configuration is inserted into the space 33 between the mounting portion 16 of the blade 1 and the mounting portion 15 of the mounting arm 13 with the bent portion 65a first, the flat surface portion 65b becomes the flat surface portion of the blade mounting portion 16. 16c slides into the space 33, and the sloped portion 65d enters the space 33 while the flat portion 15c of the mounting portion 15 of the mounting arm and the mounting portion 1
It contacts with the corner of the end face of 5, and thereafter the corner and the sloped portion 65d rub against each other, the sloped portion 65d approaches the flat surface portion 65b, and the bent end portion 65g pushes the root portion 65c slightly outward. The stopper 65 presses both mounting portions 15 and 16. Spacer 3 with stopper 65
When it is pushed all the way to 3, it looks like Fig. 6 (c).
The bent end portion 65g contacts the end surface of the mounting portion 15 of the mounting arm 13. The lateral shift stopper portion 65h is an easy fit for the flat portion 16c of the mounting portion 16 of the blade 1, the blade 1 is made of a soft material such as aluminum, and the stopper 65 is made of leaf spring steel. The blade does not fall off due to vibrations when opening and closing the blade 1. By inserting the stopper 65 into the space 33 from both sides of the mounting portion 15 of the mounting arm 13, the mounting arm 13 and the blade 1 do not move relative to each other.

To remove the stopper 65 from the space 33, remove the bent end.
When a tool such as a screwdriver is inserted between 65e and the base portion 15f of the mounting portion 15 of the mounting arm and the space between the base portion 15f and the bent end portion 65e is widened, the lateral shift stopper portion 65h is a flat surface portion of the mounting portion 16 of the blade 1. Since it is separated from 16c, the stopper 65 can be
Withdraw from 3.

The first embodiment of the present invention is a blade mounting structure of a ceiling-installed louver in which a mounting portion for mounting a blade root mounting portion is provided at the tip of the mounting arm, and (1) a hook-shaped engaging portion is provided on the mounting arm. Since the hook is provided with the hook-shaped engaging portion that fits with the engaging portion, the blade can be assembled with respect to the mounting arm from the direction intersecting the longitudinal direction of the blade, and the assembling work is easy.
(2) Engagement portions provided on the attachment portion of the attachment arm are arranged in two rows with a gap, and the cross-section has a hook shape whose tip is opposite to the tip direction of the blade. The mating part is arranged in two lines and the cross-section has a hook shape with the tip in the same direction as the tip direction of the blade, so if the hook-shaped engaging parts are fitted together, the blade will move at any rotation position of the mounting arm. Is supported by the mounting arm, so both hands are open during the subsequent stopper mounting work. Therefore, the blade can be safely attached to and detached from the mounting arm alone. (3) Between the mounting arm and each mounting portion of the blade, there is a flat spring portion between the two engaging portions, the flat surface portion facing in the same direction as the blade surface, and a leaf spring stopper elastically inserted between the flat surface portions. Is inserted, and a protrusion and a hole into which the protrusion fits are provided between the flat portion of the mounting portion of the mounting arm and the stopper, so the stopper can be simply inserted between the mounting portion of the mounting arm and the mounting portion of the blade. The blades are immovable and can be easily immobilized, and the stopper does not come off due to vibrations when opening and closing the blades. (4) In the assembled state, since the hook-shaped engaging portions of both the mounting arm and the mounting portion of the blade are fitted, the blade does not come off from the mounting arm, the blade is firmly fixed to the mounting arm, and the weight of the blade is large. It can withstand static load, load due to inertia during opening and closing, and air resistance load. (5) Since the mounting arms and the hook-shaped engaging portions of the mounting portions of the blades are fitted as in (2) above and the leaf spring stopper is used as in (3) above, The blades can be removed easily and safely, and can be done by one person.

In the other embodiment of the stopper of the first embodiment of the present invention, (1) since the lateral shift stopper portion is provided on the rear end side of the flat portion,
Since the lateral shift stopper part bites into the flat part of the blade mounting part by the spring force that acts in the direction of expanding the sloped part and the flat part, it is locked simply by inserting it in the space between the mounting arm and the blade mounting part. It is possible and easy to install. (2) In the assembled state, since the dismounting bent end and the base of the blade mounting part face the body, the stopper can be removed with a simple tool.

(Second Embodiment) Next, a second embodiment of the present invention will be described.

3 is a side view, FIG. 4 is a perspective view of FIG. 3, and FIG. 5 is an exploded perspective view of FIG. Mounting part 35 of mounting arm 13 and blade 1
The mounting portions 36 provided at the roots of the are opposed to each other. Both mounting parts 35,3
Reference numeral 6 is provided with catcher-fitting grooves 37, 38 having a dovetail-shaped cross section in the same direction as the longitudinal direction of the blades 1, and the outsides of the grooves 37, 38 are flat portions 39, 40 and 41, 42 in contact with each other. ing. The plane portions 39 and 41 and the plane portions 40 and 42 are on one plane, respectively. A mating protrusion 43 and a mating groove 44 that are fitted to each other are provided on the flat surface portions 39 and 40 that face each other on one side. The ridge 43 and the groove 44 are blades 1
Is parallel to the longitudinal direction and has a semicircular cross section.

The intermediate portion 1c of the blade 1 is an integrally formed aluminum extruded member which is continuous with the side portion of the mounting portion 36 near the fitting groove 44. The tip portion 1a of the blade 1 is connected to the intermediate portion 1c with a step provided by the inclined portion 1d.

In the assembled state, the facing flat portions 39, 40 and 41, 42 of the mounting portion 35 of the mounting arm 13 and the mounting portion 36 of the blade 1 are in contact with each other, and the fitting protrusion 43 and the fitting groove 44 form surfaces. They are in close contact with each other. The catcher fitting groove with the plane of the plane portions 39, 40 and 41, 42 in the assembled state as the center of symmetry
37,38 are made symmetrical. The catcher mating groove 3
A catcher 45 is fitted to 7,38. catcher
The cross section of 45 has a shape that complements the catcher fitting groove 37, 38, and has a female thread 46 at the center. The length of the catcher 45 is within the same length as the length of the mounting portion 35 of the mounting arm 13. When the catcher 45 is assembled in the state shown in FIG. 3, as shown in FIG. 4, a retaining member for the catcher 45
47 is attached to the back of the attachment portion 35 of the attachment arm 13. Mounting arm
Both upper sides of the tip of 13 are flat back portions 48 parallel to the flat surface portions 39 and 41 of the mounting portion 35. An arcuate groove 49 having a central angle of 180 ° or more in cross section is provided parallel to the catcher fitting groove 38 just below the corner of the rear part of the back part 48 when viewed from the mounting arm 13, and the catcher is fitted in the front part. A retaining member locking projection (50) is provided in parallel with the compound groove (38). A cylindrical protrusion 51 is provided on the back portion 48 of the mounting portion of the mounting arm. A tapping hole 61 is provided on a side portion of the mounting portion 36 on the side far from the tip of the blade 1. As in the previous embodiment, the light shielding packing 34 is provided in the hole 61.
Are fitted.

The retaining member 47 of the catcher 45 is a flat plate-like connecting portion 52.
End winding portions 53 and 54 are provided on both sides of the. The end winding portion 53 is fitted in an arcuate groove 49 provided at the back end of the mounting portion 35 of the mounting arm. When the retaining member 47 is rotated around the recess 49, the end winding portion 54 elastically surpasses the retaining member locking projection 50 and is locked by the locking projection 50. Detachment prevention member 47
Is to be locked. In the assembled state, the plate-like connecting portion 52 of the retaining member has a protrusion 51 on the back of the mounting portion 35 of the mounting arm 13.
A hole 56 for fitting with is provided to prevent the slip-out preventing member 47 from moving in the longitudinal direction of the blade 1. At one end portion of the plate-like connecting portion 52 orthogonal to the end winding portions 53, 54, there is a bending stop portion that crosses the entrance of the catcher fitting groove 36 of the mounting portion 35 of the mounting arm 13 in the assembled state. Equipped with 55. At the corners of the end of the bend-out prevention portion 55, the flat portion of the mounting portion 36 of the blade 1 is provided.
Protrusions 55a, 55a are provided at 40, 42 for biting at the time of assembly. The retaining member 47 of the catcher 45 is a leaf spring.

The blade 1 is at the root connected to the mounting portion 36 of the middle portion 1c of the blade 1.
In the closed state, a cutout groove 57 is provided on the upper side in the longitudinal direction of the blade 1.

The end winding portion 53 of the retaining member 47 is inserted into the arcuate groove 49 on one side of the back portion 48 of the mounting portion 35 of the mounting arm 13 to form a plate shape of the retaining member 47 as shown by the solid line in FIG. Back of connecting part 52 and mounting part 35
Separated from 48. As a result, the bend-out preventing portion 55 is disengaged from the catcher fitting groove 38. Next, the catcher 45 is fitted into the catcher fitting groove 37 of the mounting portion 36 of the blade 1, and the catcher fitting groove 37 is slid to make the mounting arm 13
Keep near the mounting position of.

Next, the blade 1 is attached to the attachment arm 13 by attaching the attachment portion 35 of the attachment arm 13.
And the mounting portion 36 of the blade 1 are opposed to each other and the arc-shaped fitting projection 43 and the fitting groove 44 are fitted, and the flat portions 39, 40, 41 of both the mounting portions 35, 36 42 touches.

Here, the catcher 45 is moved in the catcher fitting groove 37 of the mounting portion 36 of the blade 1, is inserted into the catcher fitting groove 38 of the mounting portion 35 of the mounting arm 13, and the retaining member 47 is pressed, The stopper member 47 is the mounting portion 35 of the mounting arm 13 in FIG.
Rotate clockwise around the arcuate groove 49 at the back end,
The hole 56 of the retaining member 47 is a protrusion 51 on the back of the mounting portion 35 of the mounting arm 13.
The end winding portion 54 is locked to the retaining member locking projection 50 at the back end of the mounting portion 35, and the bent retaining portion 55 closes the entrance of the catcher fitting groove 38. Protrusion of the retaining portion 55
55a is embedded in the flat portions 40 and 42 of the mounting portion 36 of the blade 1. When the retaining member 47 is assembled, the back of the mounting portion 35 of the mounting arm 13
The plate-shaped connecting portion 52 of the retaining member 47 is in contact with 48.

In the case of removing the blade 1, contrary to the above, when the end winding portion 54 of the retaining member 47 is lifted against the elastic force, the winding portion 54 locks the retaining member at the back end of the mounting portion 35 of the mounting arm. It disengages from the ridge 50 and opens around the arc-shaped groove 49. Push the catcher 45 while supporting the blade 1 or screw the bolt into the female screw 46 and pull it to slide the catcher fitting groove 37 of the mounting portion 36 of the blade 1 from the facing part of the catcher fitting groove 37, 38. When the blade 1 is taken out and moved, the blade 1 is separated from the mounting arm 13.

The notched groove 57 bends and falls down here when an unreasonable force is applied when closing the blade 1, so that the blade 1 and the mounting arm 13
Be careful not to damage the mounting parts 35 and 36 of the
Guarantees the exchange of

In the second embodiment, the catcher fitting groove 37, 38 has a dovetail shape, but it may be an I-shaped catcher that fits in the opposing T groove like a T groove, for example, and the catcher is in the longitudinal direction of the blade. Any cross-sectional shape that can be moved only in the direction.

The second embodiment of the present invention is a blade mounting structure of a ceiling-installed louver in which a mounting portion for mounting a blade root mounting portion is provided at a tip of a mounting arm. (1) Mounting blade blade mounting portion and blade root Since the parts are opposed to each other and each has a projection and a groove that are fitted in the same direction as the longitudinal direction of the blade, the accurate position can be easily determined when the blade is attached to the attachment arm. (2) Since the catcher is fitted with the opposing catcher fitting groove that allows the catcher to move in and out only in the same direction as the longitudinal direction of the blade, the catcher is fitted in advance in the facing portion of the mounting portion of the blade and the mounting arm. The blade is attached by simply fitting it into the catcher fitting groove of the blade, positioning the blade with respect to the mounting arm as in (1) above, and moving the catcher to the catcher fitting groove of the mounting arm. Since it is held by the arm, the blade can be easily attached. (3) Since the catcher can move only in the longitudinal direction of the blade, the catcher need only be fixed by retaining means. (4)
In the assembled state, the mounting part of the mounting arm and the mounting part of the blade are mounted by fitting the catcher, so the blade does not come off from the mounting arm and the mounting is strong. It can withstand loads that include inertial loads and air resistance loads.

The catcher retaining means has a retaining member, and an arcuate groove having a central angle of 180 degrees or more is provided on one side of the mounting portion of the mounting arm in parallel with the catcher fitting groove. A locking member locking protrusion is provided on the side parallel to the catcher fitting groove, and a protrusion is provided on the back of the mounting portion of the mounting arm. The plate-like connecting portion which has the winding portion at one end and the end winding portion which engages with the retaining member locking projection at the other end and which connects the winding portions at both ends is attached in the assembled state. A hole is provided on the back side of the mounting portion of the arm, which is fitted with a projection provided on the back portion of the mounting portion of the mounting arm, and at one end portion of the plate-shaped connecting portion that is orthogonal to the end winding portion. In the assembled state, cross the entrance of the catcher mating groove of the mounting part of the mounting arm, and install a protrusion at the tip that fits into the blade mounting part. Was due to the provision of the bent retaining portion (1) from the retaining member is always kept to the mounting arm,
When attaching and detaching the blades of a ceiling-mounted louver, which is a high-altitude operation, it is not necessary to carry a retaining member. (2) The retaining member is rotatable because the winding portion at one end of the plate-like connecting portion is fitted into the arcuate concave line on one side of the back portion of the mounting portion of the mounting arm, In addition, since it can be held immovably at any position, it does not become an obstacle when attaching the catcher, and after attaching the catcher, it can be fixed by simply moving the retaining member toward the back of the attachment part of the attachment arm, The workability is good because it will not come off. Workability is also good when removing the blades.

[Effect of device]

By adopting the above configuration, this device can be easily attached and detached without using screws when attaching and detaching the blade, which is usually a work at high places, and the mounting portion of the mounting arm and the mounting portion of the blade are Because they are firmly connected, there is no risk of the blades falling off due to accidental accidents.

[Brief description of drawings]

FIG. 1 is a side view of a first embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, FIG. 3 is a side view of a second embodiment of the present invention, and FIG. FIG. 5 is a perspective view, FIG. 5 is an exploded perspective view, FIG. 6 (a) is a perspective view of another embodiment of the stopper in the first embodiment, and FIG. 6 (b) is that of FIG. 6 (a). A side view, FIG. 6 (c) is a side view showing the usage state of the stopper, FIG. 7 is a perspective view showing the whole ceiling-mounted louver, and FIG.
FIG. 9 is a side view showing the drive unit of the blade shown in FIG. 7, and FIG. 9 is a side view showing a method of attaching the blade of the conventional example. 1 ... Blade, 1a ... tip part, 1b ... base part, 1c ... intermediate part, 1d ... oblique part, 1e ... extension part, 1f .... groove, 1g ...
Locking ridges, 1i ... Base slanted portion, 2 ... Horizontal frame, 3,4 ... Drive device, 5 ... Drive shaft, 6 ... Pin, 7 ... Crank arm, 8 ... Pin, 9 …… Oshikama, 10 …… Pin, 11…
… Connecting rod, 12 …… Holder, 12a …… Base, 12b, 12d …… Locking groove, 12e …… Introduction part, 13 …… Mounting arm, 14 …… Pin, 1
5 ... Mounting part, 15a, 15b ... Engaging part, 15c ... Flat part, 15d
…… Prevention hole, 15e …… Bolt hole, 15f …… Base part, 15h ……
Protrusions, 16 ... Mounting part, 16a, 16b ... Engaging part, 16c ... Plane part, 17 ... Base, 18 ... Motor, 19 ... Worm reducer, 20 ... Shaft coupling, 21 ... Output shaft, 22 ... Dock, 23a,
23b …… Micro switch, 24 …… Control panel, 25 …… Transformer, 26 …… Wiring, 27 …… Operation panel, 28 …… Shaft coupling, 31…
… Stopper, 31a …… Bend part, 31b …… Flat part, 31c…
… Bent end, 31d …… Slope, 31e …… Flat, 31f ……
Grips, 32 …… Protrusions, 33 …… Space, 34 …… Light-shielding packing, 35,36 …… Mounting parts, 37,38 …… Line grooves, 39,40,41,42…
… Flat part, 43,44 …… Mating ridge, 45 …… Catcher, 4
6 …… Female screw, 47 …… Retaining member, 48 …… Back part, 49 ……
Arc-shaped recessed line, 50 ... Retaining member locking projection, 51 ... Projection,
52 …… plate-like connecting part, 53,54 …… end part winding part, 55 …… bending and retaining part, 55a …… projection, 56 …… hole, 57 …… notch groove, 6
1-Tapping hole, 65-Stopper, 65a-Bent section, 65b-Flat section, 65c-Root section, 65d-Slope section, 6
5e …… Bend end, 65f …… Corner, 65g …… Bend end, 65h
…… Slippage stopper part, 65i …… tip part, 65j …… hole.

Claims (2)

[Scope of utility model registration request] 1. A blade mounting for a ceiling-mounted louver, which has a row of blades orthogonal to horizontal frames arranged side by side, and is provided with a mounting portion for mounting a blade mounting portion at a tip of a mounting arm rotatably mounted on the horizontal frame. In the structure, the blade mounting portion of the mounting arm and the blade mounting portion face each other, and each has an engaging portion in the same direction as the longitudinal direction of the blade, and each engaging portion is spaced in the same direction as the width direction of the blade. Are provided in two places and are fitted to each other, and there is a space between the mounting arm and each mounting portion of the blade between the engaging portions, and in the space, from the blade mounting portion of the mounting arm. A blade mounting structure for a ceiling-mounted louver, characterized in that a stopper is inserted to prevent the blade from coming off. 2. A blade mounting of a ceiling-mounted louver, which has a row of blades orthogonal to horizontal frames arranged in parallel, and a mounting portion for mounting a blade mounting portion is provided at a tip of a mounting arm rotatably mounted on the horizontal frame. In the structure, the blade mounting portion of the mounting arm and the blade mounting portion are opposed to each other, and the mounting portion is provided with a catcher fitting groove in the same direction as the longitudinal direction of the blade, and the catcher fitting groove has the above-mentioned A catcher for connecting the mounting portion of the mounting arm and the mounting portion of the blade is fitted, and the blade mounting portion of the mounting arm is provided with a retaining member for the catcher, which is mounted on the ceiling louver. Construction.