JP2659144B2 - Spring tightening fine adjustment device for lightweight shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-weight shutter winding fine-tuning device which is used for fine adjustment of an elastic torque in order to balance a spring for winding a shutter. .

[0002]

2. Description of the Related Art In this conventional fine adjustment work, when tightening to take up the balance of the shutter, the spring for winding the shutter of the winding device is stopped with a pin so that it does not return, and then the slat curtain is suspended. After removing the slat curtain, the slat curtain was pulled up, and the fixing position of the hanging base was set just before the shutter winding spring was tightened.

[0003] However, if the slat curtain is still light, if it is heavy, this complicated work by a plurality of humans will take a long time and must be severe. With this work method, it is extremely difficult to make fine adjustments in response to the demands of the consumers, and it is not possible to uniformly adjust the group of shutter winding springs of a multiplicity of shutter winding devices. It was possible, and there was variation, and the customers could not be satisfied. SUMMARY OF THE INVENTION It is an object of the present invention to provide a light-weight shutter spring tightening fine adjustment device which is effective and appropriate for solving the above-mentioned conventional problems.

[0004]

The above-mentioned object is achieved by the present invention employing the following novel features. That is, a first feature of the present invention is that the elastic torque of the lightweight shutter hoisting spring is set to fit into an auxiliary pipe end hole penetrating between a pair of left and right or more winding wheels attached to the fixed shaft. An annular movable base in which a hoisting pin to be inserted is implanted on one side and a gear is fixed on the opposite side to penetrate the fixed shaft, and a wrench-free end of an operation drive shaft rotatably supported through the wrench. A non-return means for preventing reverse rotation of the operation drive shaft in the reverse direction is attached thereto, and a fixed flange which is fitted and fixed to the fixed shaft is interposed between the other end of the operation drive shaft and the gear. A transmission gear mechanism for transmitting the rotational torque of the operation drive shaft in the tightening direction to the gears in a reduced speed.

A second feature of the present invention is a spring tightening fine adjustment device for a lightweight shutter in which the annular movable base and the fixed flange according to the first feature have a split structure that can be disassembled and assembled.

A third feature of the present invention is that the first or the second
The gear having the above feature is a spring-tightening fine adjustment device for a lightweight shutter, wherein the gear is an internal gear or an external gear.

A fourth feature of the present invention is that the check rotation means in the first, second or third feature is one of a check ratchet mechanism, a detachable check ratchet wrench and a check one-way clutch. This is a spring tightening fine adjustment device for a lightweight shutter.

[0008] A fifth feature of the present invention is the third or fourth aspect.
The transmission gear mechanism according to the above feature is characterized in that an intermediate transmission gear that is rollingly engaged with the internal gear or the external gear is freely mounted on the fixed flange, and a drive gear that meshes with the intermediate transmission gear is fixed to the other end of the operation drive shaft. This is a lightweight spring tightening fine adjustment device for a shutter.

[0009]

According to the present invention, the above means have been taken, so that a finely adjusting work is assembled and mounted on a fixed shaft on site, and a shutter winding wheel in which a tightening pin is inserted into an end hole of an auxiliary pipe. And leave it with the slat curtain attached. First, if the ratchet wrench fitting part is fitted to the end of the operation drive shaft, the handle is gripped and the reciprocating swing operation is performed, the operation drive shaft is rotated in the winding direction by a one-way ratchet action, while a non-return ratchet mechanism, The reverse rotation of the non-return ratchet wrench or the non-return one-way clutch prevents the reverse rotation of the operation drive shaft, which is generated by receiving the return torque of the spring for raising the shutter via the transmission gear mechanism, and drives the reverse. The one-way rotational torque is reduced and transmitted to the internal gear or the external gear via a transmission gear mechanism including a gear and an intermediate transmission gear.

An annular movable base having an internal gear or an external gear to which the torque is transmitted in a reduced speed is rotated in the winding direction, and the shutter take-up wheel together with the auxiliary pipe is jogged through a winding pin integrated therewith. By rotating, the shutter winding spring is torsionally elastically deformed to set a desired elastic torque. At that time, it is possible to actually test the manual opening / closing operation of the lightweight shutter and make settings according to the preference of the consumer. When the winding setting operation is completed, the shutter winding wheel is fixed and the device of the present invention is disassembled and removed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of the present embodiment, FIG. 2 is a partially cutaway left side view of the present embodiment set on a shutter winding wheel, FIG. 3 is a front view of a left half-arc portion of an annular movable base, and FIG. 5 is a partially broken left side view, FIG. 5 is a rear view of the right half-arc part, FIG. 6 is a partially broken left side view, and FIGS. 7 to 9 are a front view, a left side view and one view of the internal gear. Partial cutaway plan view, FIG.
To FIG. 12 is a partially broken plan view of an upper half plate portion of a fixed flange having a transmission gear mechanism and an idler gear;
FIGS. 13 to 15 are a partially broken front view and a partially broken right side view, and FIGS. 13 to 15 are a partially broken plan view, a rear view, and a partially broken left side view of the same lower half-arc portion.

In FIGS. 1 and 2, A denotes a fine adjustment device for tightening a spring of a lightweight shutter according to the present embodiment, α denotes a fixed shaft,
β is a shutter winding spring, γ is a shutter winding wheel, ε is a bolt stopper for fixing the shutter winding spring β end to the shutter winding wheel γ, δ is an auxiliary pipe, 1 in FIGS. Is an annular movable base which is provided with a shaft through hole 2 at the center and which can be split into two parts, a left half-arc part 1a and a right half-arc part 1b, and 3 projects on a concentric circle near the outer periphery of the back of the annular movable base 1. The tightening pins 4 inserted into the end holes δ1 of the corresponding auxiliary pipes δ are escape holes for receiving the protruding ends of the bolt stoppers ε when the annular movable base 1 is set.

In FIGS. 7 to 9, reference numeral 5 denotes a left half-arc portion 5a and a right half-arc portion 5b which can be disassembled into parts corresponding to the left half-arc portion 1a and the right half-arc portion 1b of the annular movable base 1, respectively. The internal gears, 6a and 6b, 7a and 7b, are overhanging connecting blocks, 10a and 11a, 10b and 11b are correspondingly ring-shaped by passing through the assembling bolt 8 and fastening with the assembling nut 9 between them. Bolt through holes 12a and 13 penetrating through the left and right half arc portions 1a and 1b of the movable base 1, respectively.
a, 12b and 13b, which are screwed into the screw-in bolts 12 and 13 shown in FIG. 1, to connect the left half-arc portion 5a and the right half-arc portion 5b to the left half-arc portion 1a and the right half of the annular movable base 1. The screw insertion holes 14 integrally fixed to the arc portion 1b are internal teeth.

In FIGS. 10 to 15, reference numeral 15 denotes a shaft fitting through hole 18 formed in the center of the upper and lower cylindrical edge portions 16 and 17 and is divided into an upper half plate portion 15a and a lower half arc portion 15b. The flexible fixing flange 19 shown in FIG. 1 is rotatably supported through a ball bearing 20 penetrating above the upper half plate portion 15a, and the fitting portion 21 of the ratchet wrench 21 shown in FIG.
An operation drive shaft for fixing the hexagonal head 22 to which a can be freely fitted to the front end, 23 and 24, 25 and 26 are assembled and assembled through bolts 27 shown in FIG. 1 are inserted through the bolt through holes 28a, 28b and 29a. The extension connecting plates 31a and 31b, 32a and 32b, which penetrate through 29b and are fastened with the assembling nuts 30, are screw-in holes of screw-in bolts 33 shown in FIG.
Reference numerals 4 and 35 denote positioning fixing pins projecting from the inner surfaces of the shaft fitting through holes 18 of the upper half plate portion 15a and the lower half circular arc portion 15b corresponding to the pin holes 36 and 37 shown in FIG. It is.

In FIGS. 1 and 2, reference numeral 38 designates a ratchet gear 39 fixed to the operation drive shaft 19 and a tip spring 42a constantly biased to the outer periphery of the ratchet gear 39 around a pivot bolt 41 by a tension spring 40. Ratchet claw 4
2 is a non-return ratchet mechanism as non-return rotation means for preventing rotation of the operation drive shaft 19 in the reverse direction of the winding tightening.

In FIGS. 10 to 12, reference numeral 43 denotes the operation drive shaft 19.
And a drive gear 44 fixedly mounted on an intermediate fixed shaft 45 which penetrates the upper half plate portion 15a of the fixing flange 15 and has a protruding root end male screw portion 45a fastened by a nut 46. An intermediate transmission gear 47 that meshes simultaneously with the external gear and the internal gear 14 shown in FIG.
This is a transmission gear mechanism for reducing and transmitting the winding torque of the operation drive shaft 19 to the internal gear 5.

In FIGS. 13 to 15, reference numeral 48 denotes a fixed flange 1.
5 fixed support shafts 49 which are respectively implanted in the lower half-arc portions 15b.
The inner teeth 14 of the internal gear 5 shown in FIG.
, And smoothly rotates the internal gear 5. Reference numerals 50 and 51 denote through bolts and nuts for fixing the lower cylindrical edge portion 17 to the lower semicircular arc portion 15b.

This embodiment shows such a specific embodiment, and in using the same, as a preparation work, the internal gear 5 is used.
1 and 2, the annular movable base 1 and the fixed flange 15 are disassembled into left and right semi-circular portions 1a and 1b, the upper half plate portion 15a and the lower semi-circular portion 15b. As shown in the figure, a shutter winding wheel γ in which the embodiment A is assembled and mounted on the fixed shaft α with the assembly through bolts 8, 27 and the assembly screw insertion bolt 33, and the hoisting pin 3 is inserted into the end hole δ1 of the auxiliary pipe δ. And leave it with the slat curtain attached.

First, the hexagonal head 22 at the end of the operation drive shaft 19
The fitting 21a of the ratchet wrench 21 is fitted to the
If the gripper b is reciprocated in the direction of the arrow while holding it (see FIG. 1), the transmission consisting of the drive gear 44 and the intermediate transmission gear 47 integrated with the operation drive shaft 19 is performed by the reverse rotation of the ratchet wrench 21 in the reverse winding direction. The winding rotation torque is reduced and transmitted to the internal gear 5 via the gear mechanism 43. Meanwhile, the checker ratchet mechanism 38 causes the annular movable base 1 → the internal gear 5 → the transmission gear mechanism 43 to transmit the shutter lifting spring β.
Of the operation drive shaft 1a, which is generated by receiving the return torque, is prevented from rotating in the reverse direction of the tightening operation.

The annular movable base 1 to which the internal gear 5 to which the tightening torque has been transmitted with reduced speed is fixedly displaced in the winding direction.
By rotating the shutter take-up wheel γ together with the auxiliary pipe δ via the hoisting pin 3 integrated therewith, the shutter take-up spring β is torsionally elastically deformed and set to a desired elastic torque. At that time, a manual opening and closing operation of the slat curtain is actually tested, and a setting is made according to a consumer's preference.

Next, the shutter take-up wheel γ is immovably fixed to the fixed shaft α using a not-shown stop pin or stop key. When the tightening setting work is completed, the assembly through bolt 8,
27 and the assembly screw bolt 33 are loosened and removed, and the embodiment A is disassembled and detached from the fixed shaft α.

(Second Embodiment) A second embodiment of the present invention will be described with reference to the drawings. FIG. 16 is a front view of this embodiment, and FIG. 17 is a partially cutaway left side view of this embodiment set on a shutter winding wheel. In the spring tightening fine adjustment device B for a lightweight shutter according to the present embodiment, instead of the check ratchet mechanism 38 in the first embodiment, a check ratchet wrench 52 having a handle portion 52b formed in a short length and having a reverse direction is fitted. The same members are given the same reference numerals because they are the same except that the joint portion 52a is fitted through the rear half of the hexagonal head 22 so as to be removably fitted.

Since the specifications of this embodiment are such specific embodiments, the non-return ratchet mechanism 38 and the non-return ratchet wrench 52 perform the same function, and thus this embodiment is the same as the first embodiment. Perform the operation. In the first and second embodiments, the non-return ratchet mechanism 38 and the non-return ratchet wrench 52 are used. However, the same function can be achieved even when a non-return one-way clutch is applied. The gear may be externally meshed with the intermediate transmission gear 47. At this time, it is natural that the idler gear 48 is externally meshed with the external gear.

[0024]

As described above, according to the present invention, since the entire apparatus is constructed so as to be capable of being disassembled and disassembled, the apparatus is highly mobile, and the present invention can be mounted after the slat curtain is mounted. Since the transmission gear mechanism also serves as a speed reduction mechanism, it is possible to adjust the tightening of a large slat curtain winding device using a shutter winding spring having a large torque. In addition, the gear ratio is reduced by the gear ratio of the internal gear, the intermediate transmission gear, and the drive gear, the force is reduced, and the use of a non-return ratchet mechanism and a non-return ratchet wrench prevents the shutter winding spring from returning. A large torque can be generated with a small amount of hand force, and the shutter winding spring can be easily tightened. In addition, it is possible to easily and uniformly adjust a large number of light-weight shutter groups, which are arranged in succession, uniformly, so that there are excellent effects such as reduction of the number of hands and fine adjustment to meet the demands of the user.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is a partially broken left side view of the first embodiment set on a shutter winding wheel.

FIG. 3 is a front view of a left semi-circular portion of an annular movable base.

FIG. 4 is a partially broken left side view of the same.

FIG. 5 is a rear view of the right half-arc portion of the above.

FIG. 6 is a left side view with a part cut away according to the first embodiment;

FIG. 7 is a front view of the internal gear.

FIG. 8 is a right side view of the same.

FIG. 9 is a partially broken plan view of the same.

FIG. 10 is a partially broken plan view of an upper half plate portion of a fixed flange provided with a transmission gear mechanism and an idler gear.

FIG. 11 is a partially cutaway front view of the same.

FIG. 12 is a right side view, partially broken away, same as above.

FIG. 13 is a partially broken plan view of a lower semicircular arc portion of the same.

FIG. 14 is a rear view of the same.

FIG. 15 is a left side view with a part cut away according to the first embodiment;

FIG. 16 is a front view showing a second embodiment of the present invention.

FIG. 17 is a partially broken left side view of the second embodiment set on a shutter winding wheel.

[Explanation of symbols]

 A, B: Light-weight shutter tightening fine adjustment device α: Fixed shaft β: Shutter winding spring γ: Shutter winding wheel ε: Bolt stopper δ: Auxiliary pipe δ1: End hole 1: Annular movable base 1a , 5a: left half arc portion 1b, 5b: right half arc portion 2: shaft through hole 3: hoisting pin 4 ... escape hole 5: internal gear 6a-7b ... overhanging connection block 8, 27 ... assembly through bolt 9, Reference numeral 30: Assembly nuts 10a to 11b, 31a to 32b: Screw holes 12a to 13b, 28a to 29b: Bolt through holes 14: Internal teeth 15: Fixed flange 15a: Upper half plate portion 15b: Lower half arc portion 16, 17 ... Cylindrical edge piece 18 ... Shaft fitting through hole 19 ... Operation drive shaft 20 ... Ball bearing 21 ... Ratchet wrench 21a, 52a ... Fitting part 21b, 52b ... Handle part 22 ... Hex head 23-26 ... Overhanging connection plates 34, 35 ... Fixing pins 36, 37 ... Pin holes 38 ... Non-return ratchet mechanism 39 ... Ratchet gears 40 ... Tension springs 41 ... Pivot bolts 42 ... Ratchet claws 42a ... Tip claws 43 ... Transmission gears Mechanism 44: Drive gear 45: Intermediate fixed shaft 45a: Protruding root end male screw portion 46, 51 ... Nut 47: Intermediate transmission gear 48: Idler gear 49: Fixed support shaft 50: Through bolt 52: Non-return ratchet wrench

Claims (5)

(57) [Claims] 1. A tightening pin to be inserted into an auxiliary pipe end hole penetrating between a pair of left and right or more shutter winding wheels mounted on a fixed shaft by setting an elastic torque of a lightweight shutter winding spring. Is mounted on one side and a gear is fixed to the opposite side to penetrate the fixed shaft, and an operation drive shaft is rotatably supported on one end of the operation drive shaft, which is freely wrench-fittable. A fixing flange for attaching a non-return means for preventing the shaft from being rotated in the reverse direction and fitted and fixed to the fixed shaft; and interposing the other end of the operation drive shaft and the gear to connect the operation drive shaft, And a transmission gear mechanism for reducing and transmitting a tightening rotation torque to the gear. 2. A spring tightening fine adjustment device for a lightweight shutter according to claim 1, wherein the annular movable base and the fixed flange have a split structure which can be disassembled and assembled. 3. The fine adjustment device according to claim 1, wherein the gear is an internal gear or an external gear. 4. The fine adjustment of spring tightening for a lightweight shutter according to claim 1, wherein the non-return rotation means is one of a non-return ratchet mechanism, a non-removable non-return ratchet wrench, and a non-return one-way clutch. apparatus 5. A transmission gear mechanism comprising: an intermediate transmission gear rotatably engaged with an internal gear or an external gear mounted on a fixed flange so as to rotate freely; and a driving gear meshed with the intermediate transmission gear is connected to the other end of the operation drive shaft. 5. The fine adjustment device according to claim 3, wherein said spring is fixed to said spring.