JPH04261994A - Spring winding fine adjusting device for lightweight shutter - Google Patents

Abstract

PURPOSE:To provide a mechanical device for fine adjustment work of the elastic windup torque of a shutter winding up spring in a lightweight shutter winding device. CONSTITUTION:A ring-shaped movable base 1, planted with pinching pins 3 to be inserted in respective end holes delta1 of auxiliary pipes delta penetrating through respective by a pair of left and right or more shutter winding wheels theta attached to a stationary shaft alpha with a specified elastic torque of a lightweight shutter winding up spring beta on one side, and attached with an internal gear 5 on the opposite side is attached to the periphery of the stationary shaft alpha. A stationary flange 15, attached with a check ratchet mechanism 38 preventing the reverse winding rotation of a driving shaft 19 on one side freely fittable to a ratchet wrench 21 on the driving shaft 19 supported through freely rotatably, is fixed to the stationary shaft alpha, and on the other hand, a transmission gear mechanism 43 is inserted between the other end of the driving shaft 19 and the internal gear 5 and connected to each other to decelerate and transmit the winding rotation torque of the driving shaft 19 to the internal gear 5.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring winding fine adjustment device for a lightweight shutter, which is used to finely adjust the elastic torque in order to balance the shutter winding spring in a winding device for a lightweight shutter. .

0002

[Prior Art] When tightening the shutter to balance the shutter, this conventional fine-tuning work involves first securing the shutter winding spring of the winding device with a pin so that it does not return, and then tightening the slat curtain from its hanging point. The slat curtain was removed, the slat curtain was pulled up, and the fixed position of the hanging source was set just before the shutter hoisting spring was tightened, and fine adjustments were made manually to tighten the spring.

[0003] This is fine if the slat curtain is light, but if the slat curtain is heavy, this complicated work must be carried out by multiple hands and becomes difficult. With this work method, it is extremely difficult to make fine adjustments that reliably meet the demands of customers, and it is also impossible to uniformly adjust the shutter winding spring group of the shutter winding device that is installed in large numbers. However, variations occurred and the customers could not be satisfied. SUMMARY OF THE INVENTION It is an object of the present invention to provide a spring tightening fine adjustment device for a lightweight shutter that is effective and suitable for solving the above-mentioned conventional problems.

0004

[Means for Solving the Problems] The above objects are achieved by the present invention employing the following novel characteristic configuration means. That is, the first feature of the present invention is to set the elastic torque of the lightweight shutter hoisting spring so that it fits into the end hole of the auxiliary pipe that extends between one or more pairs of left and right winding wheels attached to the fixed shaft. An annular movable base having a hoisting pin to be inserted planted on one side and a gear fixed to the opposite side and penetrating through the fixed shaft, and one end side into which a wrench can be fitted of an operation drive shaft which is rotatably supported through the fixed shaft. a fixed flange which is fitted with a non-return rotation means for preventing rotation of the operating drive shaft in the reverse direction of tightening and fastening and is fitted and fixed to the fixed shaft; and an interposed connection between the other end of the operating drive shaft and the gear. This is a spring tightening fine adjustment device for a lightweight shutter, which includes a transmission gear mechanism that reduces and transmits rotational torque in the tightening direction of the operating drive shaft to the gear.

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 of the first feature have a two-part structure that can be disassembled and assembled.

A third feature of the present invention is that the first or second
A spring tightening fine adjustment device for a lightweight shutter is characterized in that the gear is an internal gear or an external gear.

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

A fifth feature of the present invention is that the third or fourth
The transmission gear mechanism is characterized in that an intermediate transmission gear that engages with an internal gear or an external gear is attached to a fixed flange so as to freely rotate, and a drive gear that meshes with the intermediate transmission gear is fixed to the other end of the operating drive shaft. This is a spring tightening fine adjustment device for lightweight shutters.

[0009]

[Operation] Since the present invention takes the above-mentioned measures, during fine adjustment work, the shutter winding wheel is assembled and attached to the fixed shaft on site, and the tightening pin is inserted into the end hole of the auxiliary pipe. Leave the curtains free and leave the slat curtains attached. First, when the ratchet wrench fitting part is fitted to the end of the operation drive shaft, and the handle is gripped and the reciprocating swing operation is performed, the operation drive shaft is rotated in the tightening direction by a one-way ratchet action, while the non-return ratchet mechanism The non-return rotation means of a non-return ratchet wrench or a one-way non-return clutch prevents the operation drive shaft from rotating in the reverse direction of tightening, which is generated by receiving the return torque of the shutter hoisting spring via the transmission gear mechanism. One-way rotational torque is decelerated and transmitted to an internal gear or an external gear via a transmission gear mechanism consisting of a gear and an intermediate transmission gear.

[0010] The annular movable base to which the internal gear or external gear to which the torque is transmitted at reduced speed is attached is rotated in the winding direction, and the shutter winding wheel together with the auxiliary pipe is inched through the winding pin integrated with this base. By rotating, the shutter winding spring is torsionally elastically deformed and set to 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 that match the consumer's preferences. When the tightening setting work is completed, the shutter take-up wheel is fixed and the device of the present invention is disassembled and removed.

[0011]

Embodiments (First Embodiment) A first embodiment of the present invention will be explained in detail with reference to the drawings. Fig. 1 is a front view of this embodiment, Fig. 2 is a partially cutaway left side view of this embodiment set on a shutter take-up wheel, Fig. 3 is a front view of the left semicircular portion of the annular movable base, and Fig. 4 is the same.・Partially broken left side view of the internal gear, FIG. 5 is a rear view of the right semicircular arc part, FIG. 6 is a partially broken left side view of the same, and FIGS. 7 to 9 are the front view, left side view, and one side view of the internal gear. Partially broken plan view, Figure 10
12 are partially cutaway plan views of the upper half plate portion of a fixed flange equipped with a transmission gear mechanism and an idler gear,
A partially broken front view and a partially broken right side view, and FIGS. 13 to 15 are a partially broken plan view, a back view, and a partially broken left side view of the lower semicircular arc portion.

In FIGS. 1 and 2, A is a spring tightening fine adjustment device for a lightweight shutter according to this embodiment, α is a fixed shaft,
β is a shutter hoisting spring, γ is a shutter take-up wheel, ε is a bolt stopper that fixes the end of the shutter hoisting spring β to the shutter take-up wheel γ, δ is an auxiliary pipe, and in FIGS. 3 is an annular movable base that has a shaft through hole 2 in the center and can be separated into two halves into a left semicircular arc portion 1a and a right semicircular arc portion 1b; The tightening pin 4, which is fitted into the end hole δ1 of the corresponding auxiliary pipe δ, is a relief hole that accommodates the tip end of the bolt stopper ε when the annular movable base 1 is set.

In FIGS. 7 to 9, reference numeral 5 can be freely divided into two parts, corresponding to the left semicircular arc part 1a and the right semicircular arc part 1b of the annular movable base 1, into a left semicircular arc part 5a and a right semicircular arc part 5b. internal gears, 6a and 6b, 7a and 7b are overhang connecting blocks that pass through an assembly bolt 8 between the assembled two and are fastened with an assembly nut 9; 10a and 11a, 10b and 11b are correspondingly annular Bolt through holes 12a and 13 are provided through the left semicircular arc portion 1a and the right semicircular arc portion 1b of the movable base 1, respectively.
Screw together the threaded bolts 12 and 13 shown in FIG. The screw hole 14, which is integrally fixed to the arcuate portion 1b, is an internal tooth.

In FIGS. 10 to 15, 15 has a shaft fitting hole 18 bordered by upper and lower cylindrical edge pieces 16 and 17 in the center, and is separated into an upper half plate part 15a and a lower semicircular arc part 15b. The flexible fixing flange 19 shown in FIG. 1 is rotatably supported through a ball bearing 20 fixed to the upper side of the upper half plate portion 15a, and is a fitting portion 21 of a ratchet wrench 21 shown in FIG.
23 and 24, 25 and 26 are the operation drive shafts that fix the freely fittable hexagonal head 22 at the front end, and the assembly through bolts 27 shown in FIG. The overhanging connection plate 29b is passed through and fastened with the assembly nut 30. 31a and 31b, 32a and 32b are threaded holes for the threaded bolt 33 shown in FIG.
, 35 are positioning fixing pins that protrude oppositely from the inner surfaces of the shaft fitting through holes 18 of the upper half plate portion 15a and the lower semicircular arc portion 15b, corresponding to the pin holes 36 and 37 shown in FIG. be.

In FIGS. 1 and 2, reference numeral 38 denotes a ratchet gear 39 fixed to the operating drive shaft 19, and a tension spring 40 that constantly presses a tip pawl 42a against the outer periphery of the ratchet gear 39 around a pivot bolt 41. ratchet pawl 4
This is a non-return ratchet mechanism which is a non-return rotation means for preventing rotation of the operation drive shaft 19 in the opposite direction of seaming.

In FIGS. 10 to 12, reference numeral 43 indicates the operation drive shaft 19.
The driving gear 44 is fixed to the upper half plate part 15a of the fixed flange 15, and the protruding root end male screw part 45a is attached to the intermediate fixed shaft 45, which is tightened with a nut 46, so as to be freely rotatable. Intermediate transmission gear 47 that meshes simultaneously by external engagement and internal engagement with internal gear 5 internal teeth 14 shown in FIG.
It is a transmission gear mechanism that decelerates and transmits the tightening rotational torque of the operation drive shaft 19 to the internal gear 5.

In FIGS. 13 to 15, 48 is the fixed flange 1.
The fixed support shafts 49 are respectively implanted in the lower semicircular arc portions 15b of 5.
The internal teeth 14 of the internal gear 5 shown in FIG.
The idler gear meshes with the internal gear 5 to smoothly rotate the internal gear 5. Numerals 50 and 51 are through bolts and nuts that fix the lower cylindrical edge piece 17 to the lower semicircular arc portion 15b.

This embodiment presents such a specific embodiment, and when using it, as a preparatory work, the internal gear 5 is
The annular movable base 1 and the fixed flange 15, which are integral with the same, are disassembled into two halves into left and right semi-circular parts 1a, 1b, an upper half plate part 15a and a lower semi-circular part 15b, and transported to the site. As shown, this embodiment A is assembled and attached to the fixed shaft α using the assembly through bolts 8, 27 and the assembly threaded bolt 33, and the shutter winding wheel γ is assembled with the winding pin 3 inserted into the end hole δ1 of the auxiliary pipe δ. Leave it free and leave the slat curtain attached.

First, the hexagonal head 22 at the end of the operation drive shaft 19
Fit the fitting part 21a of the ratchet wrench 21 into the handle 21.
When gripping b and performing a reciprocating swing operation in the direction of the arrow (see Fig. 1), the ratchet wrench 21 is tightened and idly rotated in the opposite direction, thereby generating a transmission consisting of a drive gear 44 integrated with the operation drive shaft 19 and an intermediary transmission gear 47. The tightening rotational torque is transmitted to the internal gear 5 via the gear mechanism 43 at a reduced speed. During this time, the operation drive shaft 1a is tightened in the opposite direction due to the return torque of the shutter winding spring β via the annular movable base 1 → internal gear 5 → transmission gear mechanism 43 by the non-return ratchet mechanism 38. prevent rotation.

The annular movable base 1 to which the internal gear 5 to which the seaming torque is decelerated and is transmitted is fixed is rotationally displaced in the seaming direction,
By inchingly rotating the shutter winding wheel γ together with the auxiliary pipe δ via the winding pin 3 integrated therewith, the shutter winding spring β is torsionally elastically deformed and set to a desired elastic torque. At that time, we will actually test the manual opening and closing operations of the slat curtains and make settings to suit the customer's preferences.

Next, the shutter take-up wheel γ is immovably fixed to the fixed shaft α using a stop pin or a stop key (not shown). After completing the tightening setting work, remove the assembly through bolt 8,
27 and the assembly screw bolt 33 are loosened and removed, and the present embodiment A is disassembled in half and removed from the fixed shaft α.

(Second Embodiment) A second embodiment of the present invention will be explained 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 take-up wheel. The spring tightening fine adjustment device B for a lightweight shutter according to the present embodiment has a short handle 52b instead of the non-return ratchet mechanism 38 in the first embodiment, and a non-return ratchet wrench 52 is fitted in the opposite direction. Identical members are given the same reference numerals because they have the same configuration except that the joint portion 52a is removably fitted through the rear half of the hexagonal head 22.

Since the specifications of this embodiment are such a specific embodiment, the non-return ratchet mechanism 38 and the non-return ratchet wrench 52 perform the same function, so this embodiment is similar to the first embodiment. perform an action. Although the non-return ratchet mechanism 38 and the non-return ratchet wrench 52 were used in the first and second embodiments, the same function can be achieved even if a one-way non-return clutch is applied, and external gears are used instead of the internal gear 5. The gear may be externally meshed with the intermediate transmission gear 47. In this case, it is a matter of course that the idler gear 48 is externally meshed with the external gear.

[0024]

[Effects of the Invention] Thus, according to the present invention, the entire device is structured so that it can be disassembled and assembled in half, so it is highly maneuverable, and the present invention can be installed after installing the slat curtain. Since the transmission gear mechanism also functions as a speed reduction mechanism, it is possible to adjust the winding of a large slat curtain winding device that uses a high-torque shutter winding spring. In addition, the speed is reduced by the gear ratio of the internal gear, the intermediate transmission gear, and the drive gear to reduce the force and prevent the shutter hoisting spring from returning by using a non-return ratchet mechanism and a non-return ratchet wrench. Generates a large amount of torque with a small amount of manual effort, allowing you to easily tighten the shutter winding spring. In addition, it becomes possible to uniformly and easily adjust a large number of light shutter groups arranged in series, which has excellent effects such as reducing manpower and making it possible to perform fine adjustments to the extent that the user's wishes can be met.

[Brief explanation of the drawing]

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

FIG. 2 is a partially cutaway left side view of the first embodiment set on a shutter take-up wheel.

FIG. 3 is a front view of the left semicircular arc portion of the annular movable base.

FIG. 4 is a partially cutaway left side view of the same as above.

FIG. 5 is a rear view of the right semicircular portion of the same as above.

FIG. 6 is a partially cutaway left side view of the same as above.

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

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

FIG. 9 is a partially cutaway plan view of the same as above.

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

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

FIG. 12 is a partially cutaway right side view of the same as above.

FIG. 13 is a partially cutaway plan view of the lower semicircular arc portion of the same as above.

FIG. 14 is a rear view of the same as above.

FIG. 15 is a partially cutaway left side view of the same as above.

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

FIG. 17 is a partially cutaway left side view of the second embodiment set on the shutter take-up wheel.

[Explanation of symbols]

A, B...Spring tightening fine adjustment device α for lightweight shutters
…Fixed shaft β…Shutter hoisting spring γ…Shutter take-up wheel ε…Bolt stop δ…Auxiliary pipe δ1…End hole 1…Annular movable base 1a, 5a…Left semicircular arc portion 1b, 5b…Right semicircular arc Part 2...Shaft through hole 3...Hoisting pin 4...Escape hole 5...Internal gears 6a to 7b...Overhanging connection blocks 8, 27...Assembling through bolts 9, 30...Assembling nuts 10a to 11b, 31a to 32b...Threaded Holes 12a-1
3b, 28a to 29b...Bolt through hole 14...Internal teeth 15...Fixed flange 15a...Upper half plate portion 15b...Lower semicircular 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...Hexagon head 23-26...Extended connection plate 34, 35...Fixing pin 36, 37...Pin hole 38...Return check ratchet mechanism 39... Ratchet gear 40...Tension spring 41...Pivot bolt 42...Ratchet pawl 42a...Tip pawl 43...Transmission gear 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 (1)

[Scope of Claims] [Claim 1] The elastic torque of the spring for lightweight shutter hoisting is set to provide an auxiliary pipe end hole that extends between a pair of left and right shutter winding wheels or more that are attached to a fixed shaft. An annular movable base having a tightening pin to be inserted therein planted on one side and a gear fixed on the opposite side to penetrate the fixed shaft, and one end of an operation drive shaft rotatably supported through the fixed shaft, into which a wrench can be fitted. A fixed flange is fitted on the side with a check rotation means for preventing rotation of the operating drive shaft in the reverse direction of winding and tightening and is fitted and fixed to the fixed shaft, and an interposed connection between the other end of the operating drive shaft and the gear. A transmission gear mechanism for decelerating and transmitting the tightening rotational torque of the operating drive shaft to the gear.Claim 2: The annular movable base and the fixed flange include: The spring tightening fine adjustment device for a lightweight shutter according to claim 1, characterized in that it has a two-part structure that can be disassembled and assembled freely.Claim 3. The gear is an internal gear or an external gear. The spring tightening fine adjustment device for a lightweight shutter according to claim 1 or 2.Claim 4: The non-return rotating means is any one of a non-return ratchet mechanism, a detachable non-return ratchet wrench, and a non-return one-way clutch. A spring tightening fine adjustment device for a lightweight shutter according to claim 1, 2, or 3.Claim 5: The transmission gear mechanism includes an intermediate transmission gear that engages with the internal gear or the external gear and is freely rotatable on a fixed flange. 5. The spring tightening fine adjustment device for a lightweight shutter according to claim 3 or 4, wherein a drive gear which is attached and meshes with the intermediate transmission gear is fixed to the other end of the operation drive shaft.