JPH05542Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention converts and transmits the torque generated by handle operation into a decelerated reciprocating motion (advance and retreat motion) of a spiral cable, and rotates multiple windows vertically and vertically. The invention relates to a window opening/closing device.

(Prior art) Among the prior art attempts to open and close multiple windows by pushing and pulling a geared cable, also known as a threaded cable (a steel cable with threaded protrusions along the outer periphery), The opening/closing mechanism described in Japanese Utility Model Publication No. 50-39623, which opens and closes windows by sliding the spiral portions of the driving rope and the driven rope, which are two ropes, are directly engaged with each other, reduces the sliding resistance at the bending point. This was extremely unpopular with consumers because the resistance force increased significantly and in proportion to the number of windows. Similarly, a window opening/closing device disclosed in Publication of Utility Model Publication No. 58-49343 was provided as an improved technique for the former. As a result of trying to make the spiral cable reciprocate in parallel through a wheel, the sliding resistance due to the bending of the spiral cable inside the casing and when opening and closing the window was alleviated, but both of them were still affected by the load when operating the handle. Since the number of windows increases in proportion to the number of windows, when the weight of the windows tends to increase as the space expands, the load burden of operating the handle hinders usage efficiency.

In addition, by rotating a gear wheel (also known as a caterpillar gear or worm wheel) with a geared cable (spiral thread) by operating the handle, another sub-cable (spiral thread) linked to each window that meshes with the gear wheel In the prior art (Japanese Utility Model Application Publication No. 126439/1983), which attempts to open and close windows by reciprocating the spiral strips, each spiral strip creates sliding friction within the curved pipe, and the rotational resistance of the handle operation allows the window to be opened and closed smoothly and easily. The problem was that it was not possible to do so, and it was not seen at all in the market.
Similarly, a prior art technique attempts to open and close windows by rotating a worm wheel in worm gear interlocking with a bevel gear, and reciprocating a non-reversible chain by rotating another sprocket attached to the worm wheel shaft. -126441) was also offered, but it has not been offered on the market due to cost problems such as adjustment of each gear transmission location, an increase in the number of parts, and complicated assembly due to the addition of a sprocket.

(Problem that the invention aims to solve) In order to provide a manual opening/closing device for multiple windows with excellent functionality and low price to the market, extremely harsh conditions are required. Therefore, it became unsuitable, and on the other hand, devices using simple technology include: (1) A device that uses steel cables and a torsion spring, (2) A device that allows reciprocating motion by interlocking threaded cables, and (3) A device that uses a steel cable and multiple pulleys. (1) Damage to the window saltpeter and surrounding parts due to the impact of opening the window (2) As the number of windows increases, the load on operating the operating handle increases (3) The window opens and closes sequentially from the end Each method has the disadvantage of being extremely slow.

Therefore, it is up to the satsui industry to solve all of the above-mentioned difficulties and provide the market with an inexpensive window opening/closing device that can be operated smoothly and easily while reducing production and construction costs. This has become an issue of concern.

(Purpose of the invention) This invention was revised to solve the above-mentioned problems. Therefore, the above-mentioned spiral cable is limited to reciprocating motion (driven) that directly pushes and pulls the window. Frictional resistance during bending and sliding is reduced as much as possible, and the other drive (main drive) side is entirely rotated, with a configuration in which the torque that is decelerated for each window is transmitted to the reciprocating motion of the threaded cable. In order to simplify the installation work of the overall operating system, the control box has a unique function that reduces the torque even when the number of windows increases, thereby reducing the economic burden on the customer. To provide a device that allows a window in a high place to be opened and closed easily, smoothly, and quickly without hanging.

(Means for solving the problem) The window opening/closing device using torque transmission according to this invention (hereinafter referred to as the window opening/closing device) has the same number of reduction cases as the plurality of windows arranged on the upper beam of the opening. A caterpillar gear connected via a universal joint to a polygonal drive shaft connected to a flexible shaft extending from an operation box is engaged with the external teeth formed on the outer circumferential side of the caterpillar gear having uneven teeth. On the other hand, the groove teeth formed in the outer circumferential recess are engaged with another spiral cord that engages with the window.

(Function) A When opening a window Normally, when the handle H of the operation box B, which is affixed approximately 1 meter from the floor surface (on the vertical beam side), is rotated in the clockwise (positive) direction, the operation box B (internal mechanism The flexible shaft (not shown) rotates and simultaneously rotates a polygonal drive shaft horizontally installed parallel to the upper beam of the multiple window openings (not shown). (Figure 1 arrow).

In this case, the caterpillar in the deceleration case connected to the drive shaft via the universal joint is also rotating, so the caterpillar gear whose external teeth mesh with the spiral strip of the caterpillar rotates at a reduced speed. Another spiral cable is a caterpillar gear that closely engages the groove teeth formed in the groove part deeper than the bottom surface of the external teeth carved on the outer periphery of the caterpillar gear, and whose tip is pivotally connected to the window. As the window rotates, it moves forward in an approximately L-shaped direction and gradually opens the window while tilting it so as to protrude (push it out) (Fig. 2). Therefore, caterpillar gears have teeth with different steps on the arcuate outer periphery and on the inside of the bottom surface. is molded with a tooth profile that matches the pitch of the spiral cable, and is a multifunctional gear that provides rotational motion on one hand and linear motion on the other.

B When closing the window If you operate the handle in the opposite direction to the one for opening the window (clockwise), the drive shaft will rotate via the flexible shaft, and the caterpillar gear will rotate in the opposite direction to the one for opening the window. In the window opening/closing device of this invention, the window is tilted from above using one end as a fulcrum. Since it is an opening type, the load is concentrated on the handle operation when the window is opened, but if the operation handle stops in the middle of opening or closing, the above-mentioned spiral cable, the groove teeth of the caterpillar gear, and the outside of the caterpillar and caterpillar gear The meshing of the teeth will cause the caterpillar gear to be in a locked state where it cannot rotate and will not move at all as a pawl, resulting in the unexpected convenience that the window does not need to be provided with a stopper.

(Example) Fig. 1 is an overall view showing an example of this invention, and 1 is an operation box B (internal mechanism is not shown).
3 is a spiral cable (commonly known as a geared cable), which is a flexible shaft that is rotated by manual rotation of the handle H, and is connected to two ends of a polygonal drive shaft installed horizontally in parallel with the upper beam S of the opening. One end is pivotally connected to the edge of the window W, and the other end can freely appear and retract while engaging with the caterpillar gear described later in the reduction case 4, which is arranged in the same number of windows as the upper beam S of the opening. inserted. As shown in the second diagram, the spiral cable 3 bends in an arc shape at the point where it changes direction from the deceleration case 4 toward the window, but the resistance to this bending and the resistance due to sliding near the exit are concentrated at these points. In order to do this, as shown in FIG. 6, a gate 7 consisting of a spherical cover 5 and a buried plate 5A is placed on the side of the deceleration case 4, and the screw cable is connected to the gate 7, which is made up of a spherical cover 5 and a buried plate 5A, so that the sphere 6 into which the threaded cable 3 is loosely inserted can roll freely. The gate 7 is fixed to the insertion opening side of the ball 6 to make it easy for the threaded cable 3 to slide freely and to reduce the sliding resistance by rolling the ball 6. A swivel bearing or the like may also be used. 8 is a caterpillar gear (commonly known as a worm wheel), which is rotatably attached to the reduction case 4 with a pivot shaft 1.
The gear on the outer periphery (hereinafter referred to as the external tooth 9) shown in Fig. 1 has the same shape as the caterpillar gear, but in this invention, a part of the bottom of the arc is further dug to form the groove tooth 10 with a different indented circle. The protrusion lead of the spiral cable 3 interlocks with the protrusion lead.

Therefore, the external tooth 9 meshes with the caterpillar 12 on the drive shaft 2 side at one outermost periphery, and the groove tooth 10, which is closer to the center of the step than the external tooth 9, is a spiral cable 3 linked to another window. They are sorted in relative directions within the deceleration case 4 so that they can mesh with each other (FIGS. 2 and 6).

Next, the caterpillar 12 (commonly known as the worm screw) is a device that can arbitrarily increase the number of spiral threads (reeds).
If there are two threads, the number of revolutions of the caterpillar gear 8 will be twice that of one thread, and the speed will be doubled, leading to faster window opening and closing.

The caterpillar 12 is mounted on a shaft within the deceleration case 4,
Both end shafts 13, 13 extend outside the reduction case 4 and are connected to a universal joint 14 fitted to the end of the drive shaft 2, thus driving the caterpillars of the reduction case provided for each window. The drive-related device, which connects the shafts and the flexible joints one after another through a universal joint and connects the most end to the flexible shaft 1 to reach the operation box B, can be completed by an extremely simple construction method.

In addition, a screw cable 3 having a length sufficient for opening and closing the window is inserted in advance into the deceleration case 4, and the caterpillar gear 8 is inserted into the deceleration case 4.
If the groove teeth 10 are engaged with each other, all the installation work with this invention is completed by simply pivoting the tip end of the screw cable 3 to the edge side of the window W at the same time as the drive-related construction described above. All that remains is the final adjustment (means to ensure that the windows open and close evenly and that each window is aligned and sealed tightly), but with the device of this invention, such adjustment is almost not necessary. be.

That is, the caterpillar 12 in each deceleration case 4
The center lines of both shaft ends do not necessarily coincide with the caterpillar 12 axes of the adjacent reduction case due to installation reasons. However, in this invention, in anticipation of such a situation, a flexible joint is used in advance at the connection point between both ends of the caterpillar 12 side and the drive shaft 2 side, so that some degree of eccentricity can be prevented. The configuration is such that there is no relationship (load) to the driving force.

In addition, in the reciprocating movement for opening and closing the window on the opposite side, a gate 7 similar to a self-aligning bearing is installed to reduce the sliding resistance at the point where the threaded cable 3 bends in a direction perpendicular to the deceleration case 4. The smooth sliding of the threaded cable 3 is measured for each window, and repeated experiments have sufficiently proven that the rotational force of the operating handle is easily converted into reciprocating linear motion of the threaded cable via the drive shaft. It is something that

Next, regarding the installation of the deceleration case 4, in the case of a so-called outward tilting window where the window tilts outward with respect to the wall surface, the bracket 16 should be used so that it is parallel to the window when closed, as shown in the fourth figure. In the case where the window is vertically installed, and the window is tilted inward with respect to the wall surface (inward tilting window), it is fixed perpendicularly to the wall surface with a bracket 17 as shown in Figure 5, and a long bracket is used. 18 must be specially provided and the three ends of the threaded cables be pivotally attached, otherwise opening the window will be hindered; however, in the case of windows that fold inward, this method of attachment is the safest and is often used.

(Effect of the invention) According to this invention, the torque (drive side) of the caterpillar in the reduction case disposed on the upper beam of the opening of each window is controlled by the caterpillar gear that meshes with the caterpillar for each window. Because the speed is uniformly decelerated and the window is pushed and pulled,
The manual turning force on the operating handle side is significantly reduced, and by adding two or three caterpillar leads, the rotational speed of the caterpillar gear can be increased to speed up window opening and closing. In terms of the installation position of each reduction case, the caterpillar axes are not aligned (eccentricity).
Due to the configuration in which the drive shafts are connected via a universal joint, there is no problem with rotational force at all due to the resistance reduction means at the bending point of the spiral cable, so the handle can be operated with extremely little force. Significant effects can be obtained in reducing the economic burden on the demand group and simplifying and labor-saving installation work.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view showing one embodiment of this invention, Fig. 2 is a partially cutaway plan view of the main part, Fig. 3 is a perspective view showing the multiple functions of the caterpillar gear, and Fig. 4 is an outward facing. FIG. 5 is a side view of the window with the deceleration case attached, FIG. 5 is a side view of the inward-folding window with the deceleration case attached, and FIG. 6 is a sectional view of the aligning bearing side with the spiral cable protruding and retracting. In the figure, 1 is a flexible shaft, 2 is a drive shaft, 3 is a spiral cable, 4 is a reduction case, 8 is a caterpillar gear, 9 is an external tooth, 10 is a groove tooth, 12 is a caterpillar, and 14 is a universal joint. . Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In the reduction cases 4...4, which have the same number as the plurality of windows arranged on the upper beam S of the opening, a caterpillar gear 8 having uneven teeth is pivoted on the reduction case 4, and a caterpillar gear 8 is formed on the outer circumferential side of the caterpillar gear 8. A caterpillar 12 connected via a universal joint 14 to a polygonal drive shaft 2 connected to an extending flexible shaft 1 from an operation box B is engaged with the external tooth 9, and a groove tooth 10 formed in a concave portion on the outer periphery is engaged with the outer tooth 9. A window opening/closing device using torque transmission is formed by engaging another screw rope 3 which is engaged with the window.