JPS588875Y2 - 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, the locking claw piece may 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 made of plastic etc.
L that can be installed on the top of the window frame or on the ceiling E above the window frame.
A shaped bracket base A, which is fitted onto the bracket base A with an elastic C-shaped ring C interposed therebetween, and a winding cylinder S
A bearing body B having a circular shape in front that supports the winding shaft P, and an elastic C-shaped ring C for closing a guide groove (to be described later) of this bearing body B.
It is composed of.

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. It consists of
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 two mounting holes 5 are formed on the front surface of the approximately circular distal end of the support plate 2 so as to be thinner than the proximal end. The stepped portion 6 has a substantially circular fitting in which a large number of locking grooves 7 of an appropriate shape, such as a sawtooth shape, a wave shape, or a square tooth shape with the same unevenness, are continuously protruded from the inner peripheral surface of the front edge. A matching hole 8 is bored.

Furthermore, recesses 9 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 depressions 9 can be formed on the upper part of the window frame or on the ceiling E above the window frame. 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 includes a fitting part 10 that fits into the fitting hole 8 of the bracket base A, and a bearing part 11 that supports the winding shaft P of the winding cylinder S. The wall thickness is formed to be approximately the same as that of the support plate 2, and the outer surface of the front edge is provided with a step so that it fits into the step portion 6 and the locking groove 7 portion of the fitting hole 8 is held. A clamping protrusion 12 whose outer diameter matches the portion 6 is provided,
Further, a locking protrusion 13 is provided on the outer circumferential surface of the rear edge portion, and is capable of being fitted into the fitting hole 8 from the front and being locked to the rear surface of the locking groove 7. Several locking pieces 14 corresponding to the sawtooth shape, wave shape, square tooth shape, etc. of each locking groove 7 are provided on the outer circumferential surface of both sides in between, so that the height thereof is at least lower than the height of the locking protrusion 13. Protrude from each other so that they face each other.

Further, the bearing part 11 has an outer diameter of the locking protrusion 13 of the fitting part 10.
A fitting groove 15 is formed on the front surface of the fitting part 10 to have the same outer diameter as that of the fitting part 10, and a fitting groove 15 into which the elastic C-shaped ring C is fitted is provided on the outer peripheral surface on the fitting part 10 side. The upper right straight side 16a and the lower left straight side 16b are perpendicular, and the upper left straight side 17a and the lower right straight side 17b, which are parallel to each other, are tilted slightly to the left, When the retraction shaft P is inserted, an appropriate free rotation angle J is set between the rest position when the clutch (not shown) is released and the rest position at the moment when the clutch is engaged. A bearing groove 18 having an elongated drum shape is bored so as to pass through to the fitting portion 10 (see FIG. 5).

From the center of the upper end of the bearing groove 18 of the bearing portion 11, a winding is opened to a gradually larger diameter approximately diagonally upward to the left toward the outside, leaving protrusions 19 for preventing the winding shaft from being pulled out at both corners of the upper end. A guide groove 20 for inserting a shaft is provided.

Further, approximately semicircular notch grooves 21 are provided on opposite sides of the bearing portion 11, and mounting holes 22 are bored in the fitting portion 10 corresponding to the respective notch grooves 21.

The elastic C-shaped ring C is a C-shaped ring that has elasticity peculiar to elastomer in the expansion direction, and has the same wall thickness as the bearing part 11 of the bearing body B, and has an outer diameter equal to that of the fitting part. In order to fit into the fitting groove 15 of the bearing part 11, the inner circumferential surface of the front edge is cut out, and a fitting protrusion 23 is formed on the inner circumferential surface of the rear edge. is provided.

Furthermore, a radius 24 is added to the rear corner of the fitting protrusion 23,
It is designed so that it can be smoothly fitted into the fitting groove 15 of the bearing part 11 from the front, and a taper 25 is provided at the corner of the outer circumferential surface of the leading edge to facilitate fitting operation into the fitting groove 15 of the bearing part 11. It is designed to be easy to do.

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. Since 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, the bearing groove 18 of the bearing body B is bored in a circular shape. The guide groove 20 for inserting the shaft is not required.

Then, the fitting portion 10 of the bearing body B is fitted into the fitting hole 8 of the bracket base A formed as described above, and the locking piece 14 is locked in the appropriate position of each locking groove 7, and each After the locking protrusion 13 is removably fitted from the front so that it is locked to the rear surface of the locking groove 7 portion, an elastic C-shaped ring C is inserted into the fitting groove 15 of the bearing body B.
The fitting protrusion 23 is removably fitted from the front so that the opening of the guide groove 20 of the bearing groove 18 is opened.

Since this device is configured as described above, when in use, as shown at port 19 in Figure 6, the upper corner of the window frame, the ceiling E above the window frame, or the upper part of the window frame 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, the fitting portions 10 of the bearing body B are fitted into the fitting holes 8 of the bracket base A, and the locking pieces 14 of the fitting portions 10 are engaged with appropriate positions in each of the locking grooves 7. It is removably fitted from the front so that it is secured.

In this case, the bearing body B for supporting the left end is arranged so that the cross-sectional longitudinal direction of the winding shaft P, which has a rectangular cross section, is located on the vertical axis in order to determine the operating position of the clutch built in the winding cylinder S. , and so that the winding shaft P can be easily inserted from the front of the winding cylinder S, the bearing groove 18 is made vertically long and the guide groove 20 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 20, the locking position of the locking piece 14 does not matter.

After that, the fitting protrusion 23 of the elastic C-shaped ring C is fitted into the fitting groove 15 of the bearing body B, and the openings are aligned so that the opening of the guide groove 20 of the bearing groove 18 is opened, and the fitting protrusion 23 can be attached and detached from the front. to fit into.

In addition, the bracket base A can not only be installed vertically or horizontally, but also even if the window frame D, ceiling E, side wall G, etc. are slightly slanted as shown in 8 of Fig. 6. , can be installed by slightly changing the locking position of the locking piece 14 of the bearing body B, and as shown in Fig. 6-2, the bearing body B alone can be installed on a vertical wall such as the upper corner of a window frame. It can be mounted by fitting screws F into each mounting hole 22.

Then, insert the winding shaft P having a circular cross section of the winding cylinder S into the circular bearing groove 18 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 longitudinally drum-shaped bearing groove 18 of the bearing body B for supporting the left end from the front of the guide groove 20, 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 20 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 20.

That is, by minutely changing the locking position of each locking piece 14 of the bearing body B, the angle of the bearing groove 18 and the guide groove 20 of the bearing part 11 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.

Furthermore, the fitting portion 10 of the bearing body B is fitted into the fitting hole 8 of the bracket base A, the locking piece 14 is locked at an appropriate position in each locking groove 7, and the locking piece 14 is locked at the rear surface of each locking groove 7 portion. Since the bearing body B can be removably fitted to the bracket base A by simply fitting the locking protrusion 13 from the front so that it is locked, each locking claw piece can be fitted into each locking hole from the front as in the conventional case. The bearing body B can be attached and detached extremely easily without having to bend the bearing body B to the rear side.

In this case, when fitting the bearing body B to the bracket base A, the elastic C-shaping ring C is not directly required, but a fitting groove provided on the outer peripheral surface of the bearing part 11 of the bearing body B on the fitting part 10 side. 15, the fitting protrusion 23 of the elastic C-shaped ring C, that is, the guide groove 20
The guide groove 20 of the bearing groove 18 is fitted by aligning the openings so that the openings are opened, and by rotating the opening of the elastic C-shaped ring C by an appropriate angle and shifting it from the position of the guide groove 20.
Not only can the opening of the winding shaft P be blocked to prevent it from coming out of the bearing groove 18, but also the opening of the bearing part 1 exposed to the outside can be blocked.
1 and the outer circumferential surface of the clamping protrusion 12 of the fitting part 10 can be made tapered and smooth, resulting in an extremely good appearance.

Further, by the engagement between the locking groove 7 of the bracket base A and the locking piece 14 of the bearing body B, rotation due to the rotation of the winding shaft P of the winding cylinder S can be prevented; Together with the fact that the locking groove 7 portion is firmly clamped by the clamping protrusion 12 and the locking protrusion 13 of the fitting part 10, the bracket base A
There is no play between the bearing body B and the bearing body B, and the locked state of the bearing body B is extremely stable, and the bearing body B can be reliably prevented from being pulled out.

Furthermore, the bearing body B can be reused without having to cut the locking pawl pieces when attaching or removing the 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.

In addition, the bearing groove 18 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. If a vertically elongated drum shape is formed so that an appropriate idle rotation angle J is provided between the phase and the settled position at the instant of engagement, the retracting shaft will be It is possible to reliably prevent the corners of the upper and lower ends of P from colliding with the upper right straight side 16a, the lower left straight side 16b, the upper left straight side 17a, the lower right straight side 17b, etc. and being damaged. 18, it is possible to stably hold the winding shaft P for a long period of time, and the collision of the winding shaft P within the idle rotation angle J can be divided into two parts, so that damage and wear on the engagement tip of the clutch can be reduced. .

Furthermore, from the center of the upper end of the longitudinal drum-shaped bearing groove 18 of the bearing part 11, a guide groove 20 is formed which gradually opens to a larger diameter approximately diagonally upward to the left so that protrusions 19 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 18 from the front along the guide groove 20, but also the winding shaft P of the winding cylinder S can be easily inserted into the bearing groove 18 from the front along the guide groove 20.
is not provided on the fitting part 10 side, so when the winding shaft P is fitted into the guide groove 20, there is a space on the fitting part 10 side of the guide groove 20 as a play allowance required when the winding shaft P rotates. This results in smooth rotation of the winding shaft P.

In addition, each protruding piece 19 can reliably prevent the winding shaft P from coming out of the bearing groove 18 even with any impact during movement or at the moment of locking.

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 used on 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, diagonally, etc., without changing the centrifugal performance of the clutch, but the bearing body can be attached and detached extremely easily, and the bearing body can be locked easily. It has excellent effects such as being extremely stable, being able to reliably prevent removal, being usable for a long period of time, and being extremely economical.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a front view, Fig. 2 is a vertical cross-sectional view, Fig. 3 is a cross-sectional view taken along the line X-X in Fig. 2, and Fig. 4 is an exploded perspective view. Figure 5 is an enlarged front view of the vicinity of the bearing groove showing the action of the winding shaft for the left end of the winding cylinder, and Figure 6 shows the state of use. A vertical cross-sectional view of the main part when installed on the upper corner or the ceiling above the window frame, the opening is a perspective view when the bracket base is turned horizontally and it is installed on the top of the window frame or side wall, and C is a slightly slanted window. 2 is a side view of the case where it is attached to a frame, ceiling, side wall, etc.; and 2 is a perspective view of the case where only the bearing body is attached to a vertical wall such as an upper corner of a window frame. A...Bracket base, B...Bearing body, C...Elastic C-shaped hinge, 1...Mounting plate, 2... Support plate, 3... Long hole, 4
, 5.22...Mounting hole, 6...Step,
7... Locking groove, 8... Fitting hole, 9...
・・・Recessed part, 10... Fitting part, 11...
... Bearing part, 12 ... Clamping protrusion, 13 ...
...Latching protrusion, 14...Latching piece, 15...
...Fitting groove, 16 a...Top right straight side, 16
b... Lower left straight side, 17 a... Upper left straight side, 17 b... Lower right straight side, 18...
... Bearing groove, 19 ... Projection piece, 20 ...
・Guide groove, 21... Notch groove, 23...
Fitting protrusion, 24...R, 25...
Taper, D...Window frame, E...Ceiling, F
...Screw, G...Side wall, S...
- Winding cylinder, P... Winding shaft, K... Rest position during movement, L... Rest position at the moment of engagement, J...・Free rotation angle.

Claims (1)

[Scope of utility model registration request] 1. An L-shaped bracket base formed by drilling a fitting hole in the stepped part provided on the front surface of the tip of the support plate, in which a number of appropriately shaped locking grooves protrude in a connected manner from the inner peripheral surface of the front edge. A bearing part for supporting the winding shaft is provided in series on the front surface of the fitting part to be fitted into the fitting hole, a bearing groove is bored in the center of these parts, and mounting holes are provided in opposite sides on both sides. and providing a clamping protrusion on the outer surface of the front edge of the fitting portion to be fitted into the stepped portion,
A locking protrusion that can be locked to the rear surface of the locking groove is provided on the outer circumferential surface of the rear edge of the fitting part, and the outer circumferential surface between the locking protrusion and the clamping protrusion has a shape of the locking groove. The corresponding locking pieces are protruded facing each other and removed from the bearing body, and the fitting portion of the bearing body is locked in the fitting hole of the bracket base at the appropriate position of each locking groove. A bracket device for a roll screen, etc., characterized in that the pieces can be detachably fitted so that the pieces are locked. 2. A fitting groove is provided on the outer peripheral surface of the fitting part side of the bearing part of the bearing body,
A bracket device for a roll screen or the like as claimed in claim 1, wherein an elastic C-shaped spring for closing the guide groove is removably fitted into the fitting groove.