JPH0540791Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention a. Industrial application field The present invention is intended for use with universal joints in curtains, that is, when installing curtains, blinds, etc., on bay windows, for example, on horizontal bars for mounting rails, etc. This relates to a joint used to connect and connect a rotating shaft for winding up a drawstring in a bent state such as a bent or curved state.

b. Prior Art When installing curtains, for example, on a bay window, as described above, the horizontal rod for mounting the rail, etc. and the rotating shaft for winding up the drawstring inside the rod are bent or curved. It is necessary to connect and connect.

Conventionally, a universal joint type universal joint is used as a means for connecting and connecting horizontal mounting rods and rotating shafts. In addition, the rotation shaft provided inside the mounting rod is connected not with the horizontal rod but with a universal joint or a flexible shaft. Something was warm.

c Problems to be solved by the invention By the way, the above-mentioned conventional universal joint-type universal joint is used as a connection/connection means for the horizontal mounting rod and rotation shaft, and at least two semicircular bifurcated members are used. , and one cross-shaped bar between them is required, which increases the manufacturing cost. Furthermore, if it is attempted to bend at a large angle, the number of bifurcated members and cross-shaped rods will increase, the number of parts will increase, the manufacturing cost will further increase, and the assembly process will take more time.

Also, even if a universal joint or flexible shaft is used to connect the internal rotating shaft instead of the horizontal mounting rod, if the horizontal mounting rod itself is not bent and firmly connected, the universal joint will fail. Otherwise, the center line of the flexible shaft will be out of alignment, making it impossible to smoothly transmit rotational force.

Furthermore, with the above-mentioned conventional products, the horizontal mounting rods and rotating shafts are connected and connected in advance in the factory, so workers can connect the horizontal mounting rods and rotation shafts as necessary at the curtain installation site. It was not possible to connect the rod and the rotation shaft.

Moreover, since a plurality of horizontal mounting rods are connected in advance, there are problems such as being bulky and heavy, making transportation and inventory management difficult.

The present invention is an attempt to solve the above-mentioned problems in the prior art regarding universal joints in curtains. In other words, the purpose of this invention is to reduce the number of parts, simplify the structure, reduce costs, and improve the connection and rotation of the horizontal mounting rod and rotation shaft.
To provide a universal joint for curtains that allows workers to easily and quickly connect the curtains as needed at the installation site of the curtains, and also allows work to be carried out easily and without bulk during transportation and inventory management. There is a particular thing.

B. Structure of the invention a. Means for solving the problem The universal joint A in the curtains of the invention consists of a pair of bearing members 1, 1 provided oppositely on both sides.
and a link plate 2 that connects both bearing members 1, 1.
and both bearing members 1, 1 via the link plate 2.
The two bearing members 1, 1 each have a connecting outer base part 5, 5 in a shape that can be connected to a horizontal rod 4, 4 for mounting a rail or the like on each outer side thereof. , a vertical hole for connection to the link plate 2 is provided on the inner side, and horizontal holes 6, 6 for bearings capable of supporting the flexible shaft 3 are formed on the inner side, and the link plate 2 has respective holes on both outer sides thereof. Forming vertical holes 12, 12 for connection in the bearing members 1, 1,
The flexible shaft 3 is connected to the vertical hole of each bearing member 1, 1 through a vertical shaft 7, 7, and the flexible shaft 3 can be connected at both ends to a rotation shaft 8, 8 on the side of the mounting horizontal rod 4, 4. A central portion of the flexible shaft 3 is inserted between the link plates 2, and a side portion of the flexible shaft 3 is inserted into the horizontal bearing holes 6, 6 of the respective bearing members 1, 1. The bearing members 1, 1, the link plate 2, and the flexible shaft 3 are integrated into one unit by being rotatably supported by the shaft.

In the above configuration, the universal joint A according to the present invention
The bearing members 1, 1, the link plate 2, and the flexible shaft 3
are constructed into one integrated unit.

The bearing members 1, 1 are made of, for example, metal or synthetic resin, and the connecting outer base portions 5, 5 provided on each outer side are fitted with, for example, the end portions of the horizontal rods 4 for mounting of adjacent rails, etc. That is, it is formed into a shape that can be inserted or wrapped and fixed.

The flexible shaft 3 is made of a material made of, for example, a large number of twisted steel wires, and has flexibility as well as rigidity capable of transmitting the rotational force of the rotational shaft 8 to the other. The connecting portions 9, 9 provided on both sides of the flexible shaft 3 also have a cross-sectional shape that allows them to fit with the ends of the rotating shafts 8, 8, that is, to allow insertion or insertion.

In the figure, 10 is an upper and lower plate for supporting the bearing member 1, 11 is an upper and lower plate for supporting the link plate 2, and 1
4 is a concave hole formed in the connection part 9 for inserting the rotating shaft;
15 is a curtain cloth, and 16 is a drawstring of the curtain cloth.

b. Effect When the universal joint A of curtains according to the present invention is shipped from the factory, it is not coupled or connected to the horizontal bars 4, 4 for mounting rails, etc., and is separate and independent. Transportation from factory shipment to installation site and inventory management are also handled separately.

Therefore, unlike conventional products, they are not bulky or heavy, making transportation and inventory management easier.

If the installation site for curtains is, for example, a bay window, and it is necessary to install multiple horizontal rods 4, 4 for installing rails, etc. in a bent state in the middle, the present invention can be integrated as one unit. Just take out the universal joint A and use it.

That is, the universal joint A as one unit of the present invention is used between the opposite ends of the horizontal mounting rods 4, 4 to be attached, and the connecting portion 9 of one side of the flexible shaft 3 is The bearing member 1 is fitted onto and connected to the end of the rotating shaft 8 in the horizontal mounting rod 4, and the bearing member 1 on that side
The connecting outer base 5 is fitted onto the end of the horizontal mounting rod 4 to be connected and fixed.

In the same way, the other connecting part 9 of the flexible shaft 3 of the universal joint A is connected to the end of the rotating shaft 8 in the horizontal mounting rod 4 on that side, and the bearing member 1 on that side The connecting outer base 5 may be connected and fixed to the end of the mounting horizontal 4.

In the above case, since each outer connecting base 5 is formed in a shape that can be connected to the horizontal mounting rod 4, this connecting and fixing can be performed easily and quickly.

After that, connect the multiple horizontal mounting rods 4, 4.
It is sufficient to attach it to a mounting point such as a wall surface. In the universal joint A of the present invention, the bearing members 4, 4 are connected to the link plate 2.
Since they are connected by the vertical shafts 7, 7, the horizontal mounting rods 4, 4 can be easily bent into a bent state, making installation a success.

Further, the rotation shafts 8, 8 in each of the horizontal mounting rods 4, 4 are connected by a flexible shaft 3, and the flexible shaft 3 has its sides closer to the horizontal bearing rods 6, 6 of each bearing member 1, 1. 6, the rotational force between the rotation shafts 6, 6 is reliably transmitted even if the horizontal mounting rods 4, 4 are connected in a bent state.

C. Effect of the invention As is clear from the above, the universal joint for curtains according to the invention has a small number of parts, a simple structure, and can reduce costs. , workers at the installation site of curtains can easily and quickly install the curtains as needed, and also do not take up much space during transportation and inventory management.

That is, the conventional type has a large number of parts, is expensive to manufacture, and takes time to assemble. In addition, even if the rotating shaft is connected with a universal joint or flexible shaft, if the horizontal rods for mounting the rail etc. are not connected and connected securely, the center line of the rotating shaft will be distorted and the rotating force will not be transmitted smoothly. Ta. Furthermore, since the universal joints and flexible shafts are connected to the rails and rotating shafts in advance in the factory,
It was troublesome because it was bulky due to transportation and inventory management, and it was also heavy.

On the other hand, the universal joint for curtains according to the present invention has a simple structure and includes a pair of bearing members, a link plate, and a flexible shaft as one unit.

Therefore, the number of parts is small, the structure is simple, and costs can be reduced. In addition, when workers at the installation site of curtains need to connect and connect horizontal rods and pivot shafts for mounting rails, etc., they can easily and quickly connect and connect them when it is necessary to attach them to a bay window or by bending them. and can be installed. Moreover, since it does not take up much space to reach the installation site, transportation and inventory management can be easily performed.

[Brief explanation of the drawing]

The figures show an embodiment of the universal joint of the present invention, Fig. 1 is a partially cutaway plan view showing the universal joint installed between two horizontal mounting rods, and Fig. 2 shows the universal joint of the present invention. FIG. 3 is a partially omitted perspective view of the universal joint of the present invention, and FIG. 4 is a perspective view showing an example of a usage state. Drawing code, A...Universal joint, A...Universal joint,
1...Bearing member, 2...Link plate, 3...Flexible shaft, 4...Horizontal rod for mounting, 5...Outer base for connection,
6...Horizontal hole, 7...Vertical axis, 8...Rotation axis, 9...
Connection part, 10... Upper/lower plate part, 11... Upper/lower plate part, 12... Vertical hole, 14... Recessed hole, 15... Curtain cloth, 16... Drawstring.

Claims (1)

[Claims for Utility Model Registration] A pair of bearing members 1, 1 provided oppositely on both sides.
and a link plate 2 that connects both bearing members 1, 1.
and both bearing members 1, 1 via the link plate 2.
The two bearing members 1, 1 each have a connecting outer base part 5, 5 in a shape that can be connected to a horizontal rod 4, 4 for mounting a rail or the like on each outer side thereof. , a vertical hole for connection to the link plate 2 is provided on the inner side, and horizontal holes 6, 6 for bearings capable of supporting the flexible shaft 3 are formed on the inner side, and the link plate 2 has respective holes on both outer sides thereof. Forming vertical holes 12, 12 for connection in the bearing members 1, 1,
The flexible shaft 3 is connected to the vertical hole of each bearing member 1, 1 through a vertical shaft 7, 7, and the flexible shaft 3 can be connected at both ends to a rotation shaft 8, 8 on the side of the mounting horizontal rod 4, 4. A central portion of the flexible shaft 3 is inserted between the link plates 2, and a side portion of the flexible shaft 3 is inserted into the horizontal bearing holes 6, 6 of the respective bearing members 1, 1. A universal joint for curtains, comprising: a single unit in which the bearing members 1, 1, the link plate 2, and the flexible shaft 3 are rotatably supported.