JPS588876Y2 - Bracket devices such as roll screens - Google Patents

Description

[Detailed description of the invention] This invention is mainly used when installing a winding cylinder that automatically winds up and rotates by the elastic force of a coil spring in which a screen such as a roll screen is compressed, to a window frame, ceiling, side wall, etc. The present invention relates to an improvement of a bracket device such as a roll screen that supports both ends of a winding cylinder.

Conventionally, this type of bracket device has four locking holes arranged at 90° intervals on the peripheral edge of a support plate of an L-shaped bracket base by cutting and raising the peripheral edge inward, and a cup-shaped bearing. Four locking claw pieces are protruded from the peripheral edge of the body at 90° intervals corresponding to each locking hole, and each locking claw piece of the bearing body is fitted from the front into each locking hole of the bracket base. Each of these locking pawls is bent and removably locked on the rear surface of the bracket base, and mounting pieces each having a mounting hole are provided protruding from opposing portions of the peripheral edge of the bearing body. , it was designed so that it could be installed with just the bearing body.

However, during use, by changing the locking position of each locking claw piece on the bearing body, the bearing body can be adjusted in 90' increments to bring it into the normal positional relationship, so it can be used on window frames, ceilings, side walls, etc. The bracket base can be installed vertically or horizontally on a slanted window frame, ceiling, side wall, etc. However, if the bracket base is installed diagonally on a sloped window frame, ceiling, side wall, etc., the angle of the bearing body may need to be adjusted to its normal position. could not be installed.

Furthermore, when locking the bearing body to the bracket base, it is necessary to fit each locking pawl piece into each locking hole from the front and bend each locking pawl piece to the rear surface of the bracket base. Not only is it difficult to attach and detach the bearing body, but as the bearing body is repeatedly attached and detached, play may occur between the locking hole and the locking claw piece, making the locking state of the bearing body unstable. Otherwise, there was a risk that the locking claw piece would be cut off and become unusable.

Additionally, when attaching the winding barrel to a window frame, ceiling, side wall, etc. using only the bearing body, each locking claw piece must be cut, and after using only the bearing body, it cannot be locked to the bracket base. It had various drawbacks such as:

Therefore, the purpose of this invention is to eliminate the various drawbacks mentioned above.

Hereinafter, one embodiment of this invention will be explained based on the drawings.
As shown in the figure, it is mainly molded from plastic etc.
L that can be installed on the top of the window frame or on the ceiling E above the window frame.
A bracket base A having a letter shape, a bearing body B having a circular front face shape that fits into the bracket base A and supports the winding shaft P of the winding cylinder S, and the bearing body B is fitted to the bracket base A. It is made up of an elastic C-shaped ring C.

The bracket base A includes a mounting plate 1 and a support plate 2 extending perpendicularly to the long side of the mounting plate 1 and having a narrow width at a substantially central portion in the longitudinal direction and a substantially circular tip portion. Tokararagi,
Elongated holes 3 for temporary fixing are bored on each side edge of the mounting plate 1,
Four mounting holes 4 are arranged at equal intervals inside these.

In addition, two mounting holes 5 are formed in the vicinity of the mounting plate 1 of the support plate 2, and the tip portion, which is formed in a substantially circular shape, has sawtooth shapes, waves, and unevenness on the inner peripheral surface of the front edge. A substantially circular fitting hole 7 is formed in which a large number of locking grooves 6 of an appropriate shape, such as square tooth shapes, of the same shape are continuously protruded.

Furthermore, recesses 8 are provided around the insides of the elongated holes 3 and mounting holes 4 of the mounting plate 1 and the mounting holes 5 of the support plate 2, respectively, so that recesses 8 are provided in the upper part of the window frame, the ceiling E above the window frame, etc. Care has been taken so that the screw head cannot be seen from the front of the roll screen, etc. when attached with screw F.

The bearing body B consists of a fitting part 9 that fits into the fitting hole 7 of the bracket base A, and a bearing part 10 that supports the winding shaft P of the winding cylinder S. The diameter is the same as the diameter of the fitting hole 7 of the bracket base A, and the wall thickness is slightly thinner than that of the support plate 2, and each locking groove 6 of the bracket base A is formed on the outer peripheral surface of the front edge. A stepped portion 11 having the same diameter as the connecting troughs is provided, and the opposing outer peripheral surfaces of this stepped portion 11 have locking holes corresponding to the sawtooth shape, wave shape, square tooth shape, etc. of each locking groove 6. Several pieces 12 are provided protrudingly.

The bearing part 10 has an outer diameter that is the same as the outer diameter of the step part 11 and is integrally molded on the front surface of the fitting part 9, and a fitting part into which an elastic C-shaped ring C is fitted is formed on the outer peripheral surface of the fitting part 9 side. A matching groove 13 is provided in the center, and an upper right straight side 14a and a lower left straight side 1 are parallel to each other.
4b is perpendicular and parallel to each other, the upper left straight side 15
Tilt slightly to the left so that a and the lower right straight side 15b are diagonal to the left, and the clutch (not shown) is in the resting position when the clutch (not shown) is released when the winding shaft P is wound. A bearing groove 1 in a vertically elongated drum shape such that an appropriate free rotation angle J is provided between the phase and the resting position at the moment of engagement of the clutch.
6 is drilled so as to pass through to the fitting portion 9 (see FIG. 4).

From the center of the upper end of the bearing groove 16 of the bearing part 10, a winding is opened to a gradually larger diameter substantially diagonally upward to the left toward the outside, leaving protrusions 17 for preventing the winding shaft from being pulled out at both corners of the upper end. A guide groove 18 for inserting a shaft is provided.

Further, approximately semicircular notch grooves 19 are provided on opposite sides of the bearing portion 10, and mounting holes 20 are bored in the fitting portion 9 corresponding to each of the notch grooves 19.

The elastic C-shaped ring C is a C-shaped ring having elasticity peculiar to elastomer in the expansion direction, and has the same wall thickness as the bearing part 10 of the bearing body B, and has a fitting groove of the bearing part 10. 13, a fitting protrusion 21 is provided on the inner circumferential surface of the rear edge by cutting out the inner circumferential surface of the front edge.

Furthermore, a radius 22 is added to the rear corner and the opening end corner of the fitting protrusion 21 so that it can be smoothly fitted into the fitting groove 13 of the bearing part 10 from the front or side. A taper 23 is attached to the face corner part to fit the fitting groove 1 of the bearing part 10.
3 is designed to facilitate the fitting operation.

In addition, the above-mentioned bracket device is for supporting the left end of the winding cylinder S, and the bracket device for supporting the right end has the same shape as the bracket base A and the elastic C-shaped tongue C. In B, the winding shaft P for the right end of the winding cylinder S has a circular cross section and is inserted from the front of the bearing body B during installation, so the bearing groove 16 of the bearing body B is bored in a circular shape. The guide groove 18 for inserting the shaft is not required.

Then, fit the fitting portion 9 of the bearing body B into the fitting hole 7 of the bracket base A formed as described above from behind so that the locking piece 12 is locked in the appropriate position of each locking groove 6. After that, the fitting protrusion 21 of the elastic C-shaped ring C is fitted into the fitting groove 13 of the bearing part 10 of the bearing body B from the front or side, and the bearing body B is removably fitted to the bracket base A. It was designed so that it could be worn.

Although the bracket base A, the bearing body B, and the elastic C-shaped tongue C are described and illustrated as being molded from plastic, the bracket base A and the bearing body B can also be molded from steel, die casting, or the like.

In this case, the bracket base A has the same wall thickness as that of each locking groove 6 of the fitting hole 7, and the other thick parts of the fitting hole 7L7 and the inside of the elongated hole 3 and the mounting holes 4 and 5. The respective recesses 8 provided around the periphery are removed.

Since this device is configured as described above, when in use, as shown at 49 in Figure 5, the upper corner of the window frame, the ceiling E above the window frame, or the upper part of the window frame can be Place the left and right pair of bracket bases A vertically or horizontally facing each other on the side wall G, etc., and temporarily fix them in the long holes 3 of the mounting plate 1, then insert the screws into the mounting holes 4 and 5 of the mounting plate 1 and the support plate 2. At the same time, fit the bearing body B into the fitting hole 7 of the bracket base A from the rear and lock the engaging piece 12 of the fitting part 9 in the appropriate position of each locking groove 6. let

In this case, the bearing body B for supporting the left end has a winding shaft P having a rectangular cross section located on a vertical axis in order to smoothly operate the clutch built in the winding cylinder S. In order to easily insert the winding shaft P from the front of the winding cylinder S, the bearing groove 16 is made vertically long and the guide groove 18 is always positioned diagonally upward and to the left.

Since the right end supporting bearing body B has a winding shaft P having a circular cross section and is not provided with a guide groove 18, the locking position of the locking piece 12 does not matter.

After that, an elastic C-shaped ring C is inserted into the bearing portion 10 of the bearing body B from the front or side so that the fitting protrusion 21 is fitted into the fitting groove 13, and the bearing body is attached to the bracket base A. B can be removably fitted.

Moreover, the bracket base A can be installed not only vertically or horizontally, but also in an oblique orientation with the window frame D, ceiling E, side wall G, etc. being slightly inclined, as shown in Fig. 5C. However, it can be installed by slightly changing the locking position of the locking piece 12 of the bearing body B.Also, as shown in Figure 5-2, even if only the bearing body B is used, the vertical It can be mounted on a wall by fitting screws F into each mounting hole 20.

Then, insert the winding shaft P having a circular cross section of the winding cylinder S into the circular bearing groove 16 of the bearing body B for supporting the right end from the side,
After inserting the winding shaft P having a rectangular cross section into the longitudinal drum-shaped bearing groove 16 of the bearing body B for supporting the left end from the front of the guide groove 18, and installing the winding cylinder S such as a roll screen, In order to reliably prevent the winding shaft P from falling out of the guide groove 18 of the bearing body B, the opening of the elastic C-shaped ring C is rotated by an appropriate angle and shifted from the position of the guide groove 18.

That is, by minutely changing the locking position of each locking piece 12 of the bearing body B, the angle of the bearing groove 16 and the guide groove 18 of the bearing part 10 can be freely adjusted to the normal positional relationship.
Regardless of the mounting position of the bracket base A, it can be mounted on a window frame D, ceiling E, side wall G, etc. in any orientation such as vertically, horizontally, diagonally, etc.

In addition, after fitting the bearing body B into the fitting hole 7 of the bracket base A from the rear and locking the locking pieces 12 of the fitting part 9 at appropriate positions in each locking groove 6, Elasticity C in part 10
The bearing body B can be removably fitted to the bracket base A by simply interposing the shaping C from the front or side and fitting the fitting protrusion 21 into the fitting groove 13. The bearing body B can be attached and detached very easily without having to fit each of the locking pawls into the locking hole from the front and bending them to the rear.

Moreover, rotation can be prevented by the engagement between the locking groove 6 and the locking piece 12, and the locking groove 6 portion of the fitting hole 7 of the bracket base A is formed by the fitting portion 9 and the elastic C-shaped ring C. Combined with the fact that they are crimped, the bracket base A and bearing body B
The locked state of the bearing body B is extremely stable without any play between the bearing body B and the bearing body B can be reliably prevented from being pulled out.

In addition, bearing body B can be reused without having to cut the locking pawl pieces when attaching or removing bearing body B, as in the conventional case, or without cutting each locking pawl piece when installing only the bearing body. It can be used for a long time and is extremely economical.

Furthermore, the bearing groove 16 drilled in the center of the bearing body B for supporting the left end is placed in the rest position during movement when the clutch is released when the winding shaft P having a rectangular cross section is inserted. Appropriate free rotation angle J between the phase and the settled position at the moment of locking.
If it is made into a vertically elongated drum shape, the winding cylinder S
By repeated engagement of the built-in clutch, the corners of the upper and lower ends of the winding shaft P are aligned with the upper right straight side 14a and the lower left straight side 1.
4b, the upper left straight side 15a, the lower left straight side 15b, etc., and can be reliably prevented from being damaged by collision, and the winding shaft P can be stably held in the bearing groove 16 for a long period of time. Since the collision of the winding shaft P within the clutch can be divided into two parts, damage and wear on the engagement tip of the clutch can be reduced.

Furthermore, a guide groove 18 is formed which gradually opens to a larger diameter from the center of the upper end of the longitudinal drum-shaped bearing groove 16 of the bearing part 10 toward the outside and approximately diagonally upward to the left so that protrusions 17 remain at both corners of the upper end. If provided, not only can the winding shaft P of the winding cylinder S be easily inserted into the bearing groove 16 along the guide groove 18 from the front, but also the winding shaft P of the winding cylinder S can be easily inserted into the bearing groove 16 along the guide groove 18.
8 is not provided on the fitting part 9 side, so when the winding shaft P is fitted into the guide groove 18, there is a free space on the fitting part 9 side of the guide groove 18 as the play required when the winding shaft P rotates. A space is created, allowing smooth rotation of the winding shaft P.

In addition, each protruding piece 17 can reliably prevent the winding shaft P from coming out of the bearing groove 16 even with any impact during movement of the clutch or at the moment of engagement.

As explained above, according to the bracket device of this invention, by minutely changing the locking position of each locking piece of the bearing body, it can be attached to window frames, ceilings, etc. regardless of the mounting position of the bracket base. Not only can it be mounted on a side wall in any orientation, such as vertically, horizontally, or diagonally, but the bearing body can be attached and detached extremely easily, and the locking state of the bearing body is extremely stable, making it easy to remove. Various excellent effects can be obtained, such as being able to reliably prevent leakage, being usable for a long period of time, and being extremely economical.

[Brief explanation of drawings]

The drawings show one embodiment of this invention; Fig. 1 is a front view, Fig. 2 is a vertical sectional view, Fig. 3 is an exploded perspective view, and Fig. 4 is a winding shaft for the left end of the winding cylinder. Fig. 5 is an enlarged front view of the vicinity of the bearing groove showing the action of the bracket, and Fig. 5 shows the state of use. The opening is a perspective view when the bracket base is turned horizontally and installed on the top of a window frame or side wall, C is a side view when it is installed on a slightly inclined room frame, ceiling, side wall, etc. It is a perspective view when only a bearing body is attached to a vertical wall, such as an upper limit part in a window frame. A...Bracket base, B...Bearing body, C...Elastic C-shaped hinge, 1...Mounting plate, 2... Support plate, 3... Long hole, 4
, 5, 20... Mounting hole, 6... Locking groove, 7... Fitting hole, 8... Recess, 9...
...Fitting part, 10...Bearing part, 11...
... Stepped portion, 12 ... Locking piece, 13 ...
・Fitting groove, 14a... Upper right straight side, 14b...
...Lower left straight side, 15a... Upper left straight side,
15b...Lower right straight side, 16...Bearing groove, 17...Protrusion piece, 18...Guide groove,
19... Notch groove, 21... Fitting protrusion,
22...R, 23...Taper, D
...Window frame, E...Ceiling, F...
・Screw, G...Side wall, S...Retracting cylinder, P...Retracting shaft, K...Relaxing position during movement, L・...Settled position at the moment of engagement, J
・・・・・・Free rotation angle.

Claims (1)

[Scope of utility model registration request] An L-shaped bracket base that has a fitting hole with a number of appropriately shaped locking grooves continuously protruding from the inner peripheral surface of the front edge at the tip of the support plate that extends perpendicularly to the mounting plate. Then, a bearing part for supporting the winding shaft is integrally molded on the front surface of the fitting part that fits into the fitting hole, a bearing groove is bored in the center of these parts, and mounting holes are formed in opposite sides on both sides. At the same time, locking pieces corresponding to the shape of the locking grooves are provided protruding from opposite parts of the outer peripheral surface of the front edge of the fitting part, and the outer circumference of the fitting part side of the bearing part is provided with locking pieces corresponding to the shape of the locking groove. The bearing body is provided with a fitting groove on its surface, and the elastic C-shaped ring is provided with a fitting protrusion on the inner circumferential surface of the rear edge that fits into the fitting groove. After fitting the bearing body into the mating hole from the rear and locking the locking pieces of the fitting part in the appropriate positions of each locking groove, apply elastic C to the bearing part of the bearing body.
A roll/roll product characterized by interposing a shaping so that a bearing body can be detachably fitted to a bracket base.
Bracket device for screens etc.