JP2008150941A - Attaching-detaching device of screen storage frame in framework body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attaching-detaching device of a screen storage frame, capable of freely cleaning a screen and the storage frame inside by being released from the other frame member. <P>SOLUTION: This framework body F for stretching the screen 9 is framed from upper-lower frames 2 and 3 engaging with a grip frame 7 on the screen end, a storage frame 1 as a vertical frame for internally installing a winding shaft device 11 for rolling in the screen 9, and the other vertical frame 4. Its storage frame 1 can be removed while attaching the screen 9, the winding shaft device 11 of the screen 9, an adjusting device P of its winding spring and the grip frame 7 to the storage frame 1, by extracting a connecting piece from the upper-lower frames 2 and 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus for detaching a storage frame of a screen in a frame assembly on which a net-like or planar screen such as an insect screen, a projection screen, or a shielding screen is stretched.

  Insect screens, projection screens, and shielding screens are generally used by winding them around a shaft and unwinding them (drawing out). As a means for this, a storage frame for the take-up shaft is provided as one frame of the frame at one end of the frame assembly that stretches the screen, and a handle frame is attached to the end on the drawer side of the screen, so that it can be moved to the frame assembly. The In addition, since it is necessary to automatically wind up and to hold the screen tightly by pulling the handle frame, the storage frame has a space between the screen winding cylinder and the central axis on which it rotates. A winding shaft device in which a winding spring is interposed is installed.

  Since the insect screen is pulled out by the grip frame against the elasticity of the winding spring, the insect screen is wound around the winding cylinder that rotates by the elasticity (elastic energy) accumulated in the winding spring. If the winding spring is weak, the winding may stop halfway or the insect net may be loosened, and if the winding spring is too strong, the insect net will be Therefore, an adjustment device for weakening or strengthening the effect of the winding spring is provided at the upper end of the storage frame.

  However, in the conventional screen frame assembly such as the screen door, dust adheres to the screen and, as the screen frame is repeatedly opened and closed, the dust attached to the screen is brought into the storage frame and accumulated. The inside of the storage frame was cleaned by looking at the fold, but other frame members such as the upper and lower frames obstruct the cleaning of the inside of the storage frame. I couldn't.

  In view of the above circumstances, the present invention can store the screen in the frame assembly that can be freely cleaned by opening the interior of the screen and the storage frame from the other frame members and that does not use many members. An object is to provide a frame detaching device.

  In order to solve the above-described problems, the present invention provides a frame assembly in which a screen is stretched, and is stored as a vertical frame in which an upper and lower frame engaged with a handle frame at the end of the screen and a winding shaft device for winding the screen are installed. The take-up shaft device is constructed by a frame and the other vertical frame, and the take-up cylinder rotates against the elastic force of the coil spring with respect to the central axis by pulling out the screen and is accompanied by the elastic force. It is configured to wind up by reverse rotation, and is equipped with a winding spring adjusting device by rotation of the central shaft at the upper end of the storage frame, and the base and the base plate overlapping it are fixed to the upper end of the storage frame. In the meantime, the adjusting device for the take-up spring is provided, and at least one of the base plate and the base plate is provided with a connecting piece inserted into the upper frame, and the lower end of the storage frame is provided with the lower frame. Insert A connecting block having a connecting piece is fixed, and a take-up shaft device is supported by the connecting block. By removing the connecting piece from the upper and lower frames, a screen, a take-up shaft device for the screen, and a take-up spring of the take-up spring are provided. Provided is a device for attaching / detaching a storage frame of a screen to a frame assembly, wherein the storage frame can be removed while the adjustment device and the handle frame are attached.

  When the apparatus for removing the storage frame of the screen in the frame assembly is configured as described above, the storage frame can be attached and detached by the operation of inserting and extracting the connecting piece with respect to the upper frame and the lower frame, and at the upper end of the storage frame. No separate connection block is required, and the lower connection block also serves as a bearing member of the winding shaft device at the lower end.

  As described above, according to the present invention, the screen, the winding shaft device for the screen, the adjusting device for the winding spring, and the handle frame are attached and removed simply by removing the storage frame from the frame assembly. They can be sufficiently cleaned without being obstructed by the frame member of the frame assembly, and not only the inside of the storage frame but also the inside of the member of the frame assembly from which it has been removed can be easily cleaned. Therefore, there is an excellent effect that an inexpensive provision is possible without using many members.

  According to the second and third aspects, the take-up shaft device can be removed while the frame assembly remains as it is, and the screen and the handle frame can be removed together with the take-up shaft device with the storage frame removed. Therefore, it has the effect that cleaning becomes easier. In particular, according to the third aspect, the structure is simple and the removal operation of the winding shaft device can be performed reliably.

  The drawings show an embodiment in which the present invention is implemented on a screen door or screen, but the present invention can be similarly applied to a projection screen, a shielding screen, and the like. Therefore, the expression includes the case where the vertical direction is the horizontal direction.

  FIG. 1 is a partially cutaway front view showing the entire mesh window. The frame assembly F has a storage frame 1 with a lid 5 as a vertical frame at one end, and a winding spring at the upper end. The adjusting device P is provided. The upper and lower frames 2 and 3 are connected to the storage frame 1 and have a vertical frame 4 at the other end. Further, a handle frame 7 is attached to the end of the insect screen 9 and is movably engaged with both the upper and lower frames 2 and 3. Further, the storage frame 1 is internally provided with a winding shaft device 11 for the insect screen 9, which is pivotally supported by a winding spring adjusting device P at the upper end and a lower connecting block 15 at the lower end. The storage frame 1 is connected to the upper frame 2 and the lower frame 3 by a postscript member constituting the winding spring adjustment device P and a connection block 15.

  FIG. 2 shows a cross-sectional structure of the winding shaft device 11, and its upper end is shown in a connected state with the central gear 17 of the adjusting device P. That is, although it may be integrally connected with the central gear 17, in this embodiment, the winding shaft device 11 is detachable.

  The winding shaft device 11 includes a winding tube 11a that is slightly longer than the dimension between the upper and lower frames 2 and 3, a center shaft 19, a winding spring 21, an upper end lifting shaft device 23, a lower bearing 25, A lower end cap 30 with a lower end shaft 29 is formed. The winding spring 21 is fixed to the central shaft 19 with a rivet 32 at the upper end, and is fixed to the lower bearing 25 at the lower end. Therefore, when the insect repellent net 9 is pulled out (rewinded), elasticity is accumulated in the take-up spring 21 due to rotation of the take-up cylinder 11a with respect to the central shaft 19, and when the handle frame 7 is released, the elasticity is applied to the insect repellent net. 9 is caused to act in the rotational direction of winding around the winding cylinder 11a. Therefore, when the handle frame 7 is fixed to the vertical frame 4 by the adsorption of the magnets 27a and 27b, the insect screen 9 is strained over the entire surface. If this is loose, the adjustment device P corrects it.

  In order to make the winding spring 21 effective, it is necessary that the rotation of the central shaft 19 is prevented in at least one direction so as not to move by the rotation of the winding cylinder 11a. As will be described below, the adjusting device P is provided for adjusting the strength of the take-up spring 21 when the central shaft 19 is prevented from rotating and released.

  The upper end lifting shaft device 23 forms a clutch with the central gear 17, and includes a concave upper end cap 31 fitted to the upper end of the winding cylinder 11a, a movable connecting piece 33 dropped into the concave portion, The movable connecting piece 33 is fitted on the upper end of the central shaft 19 and fixed with a rivet 37 thereto. Further, the coil spring 35 is inserted into the central shaft 19 in the upper end cap 31 and receives the movable connecting piece 33 together with the central shaft 19 upward at the upper end. The movable connecting piece 33 has an upper end surface formed on the meshing clutch surface 39, a terminal shaft 41 protruding from the center thereof, and a driver groove 43 formed on the upper end of the terminal shaft 41. On the other hand, a lower shaft 38 projects from the center of the lower surface of the central gear 17 of the adjusting device P, and a clutch surface 40 that meshes with the clutch surface 39 is formed at the lower end thereof.

  When removing the take-up shaft device 11, it is first lifted. Then, the movable connecting piece 33 retracts into the upper end cap 31 against the elasticity of the coil spring 35 and responds accordingly, so that the lower end shaft 29 can be pulled out from the lower connecting block 15 by lifting the take-up shaft device 11 and attached. This is exactly the reverse operation. Therefore, the attaching / detaching operation can be performed only by the vertical operation of the winding shaft device 11. In this case, it is an extremely simple one-handed operation.

  The terminal shaft 41 at the upper end of the winding shaft device 11 is exposed to the upper surface of the mesh window F by being inserted into the shaft support hole 45 of the central gear 17. The shaft 19 can be rotated, and the winding spring 21 can be strongly adjusted by this operation as will be described later. Reference numeral 47 is a one-way clutch, and 48 is a rotary damper. The winding spring 21 controls the speed at which the winding cylinder 11a rotates.

  The adjusting device P is provided between a plastic base 49 screwed to the upper end of the storage frame 1 and a metal base plate 51 for sealing it, and connecting pieces 49a and 51a are provided in a projecting manner on the base plate 51, respectively. Thus, the storage frame 1 is coupled to the upper frame 2. A slit 53 through which the insect screen 9 passes is formed in the lower connecting piece 49a. FIG. 3 shows the structure of the adjusting device P installed in the base 49 without the base plate 51. In addition to the central gear 17 described above, the auxiliary gear 50 has a small diameter for driving. A swing lever 56 and a compression spring 52 as a coil spring are provided. In the figure, a part of the central gear 17 is notched for easy understanding.

  As shown in FIG. 4 and FIG. 5, the base 49 projects a peripheral wall 55 that is close to the cross section of the housing frame 1 around the periphery, and opens a half (upper frame 2 side) of the peripheral wall 55 on the front surface. A storage chamber 61 of a compression spring 52 that opens forward is formed at the back of the opening 57, and a rotating shaft 62 of a swing lever 56 projects from an inner portion of the front blocking wall. A shaft support hole 63 of the central gear 17 is formed at the center, and a shaft support hole 64 of the auxiliary gear 50 is formed near the opening 57. Reference numeral 66 denotes a screw through hole that is fixed to the storage frame 1. The base plate 51 is also formed with a shaft support hole 63a of the central gear 17 and a shaft support hole 64a of the auxiliary gear 50. Reference numeral 66 a denotes a through hole for screwing the storage frame 1. It is also possible to adopt a structure in which the base 49 and the base plate 51 are turned upside down.

  The central gear 17 is a compound gear in which a ratchet gear 17b is formed under the large gear 17a (FIGS. 2 and 3), and has an upper shaft 69 corresponding to the lower shaft 38, and a winding shaft at the center. A shaft support hole 45 that supports the device 11 is formed, and a clutch surface 40 is formed on the lower surface of the lower shaft 38. Further, the swing lever 56 has a “<” shape that refracts around the rotation shaft 62, and has a claw 73 on the angle-of-attack side of the ratchet 71 formed at the tip, and is exposed to the opening 57 at the base end. Since the push button 75 is protruded and the compression spring 52 pushes the rear face thereof, when the push button 75 is pushed (FIG. 7), the claw 73 at the tip is detached from the ratchet 71, so that the stop of the central gear 17 is released. Is done. At this time, when the push is released at an appropriate position, the winding spring 21 is adjusted to be moderately weak.

  That is, if the winding cylinder 11a is fixed at this time, the elasticity accumulated in the winding spring 21 is relieved by the rotation (depolarization rotation) of the central shaft 19 due to the elasticity of the winding spring 21. If the push button 75 is released at a certain point to stop the rotation of the central shaft 19, the winding spring 21 is adjusted weakly. Further, when the central gear 17 is rotated by the driver and the central shaft 19 is rotated against the elasticity of the take-up spring 21 (positive rotation), in this case, the pawl 73 of the swing lever 56 is stopped when the rotation is stopped. Since the central shaft 19 is securely engaged with the ratchet 71 of the central gear 17 and the winding shaft 21 is strongly adjusted. Further, since the driver groove 79 is also formed in the upper shaft 77 of the shaft of the auxiliary gear 50, if the auxiliary gear 50 is rotated, the central gear 17 can be lightly rotated by the gear boosting mechanism.

  In the adjustment device P for the take-up spring of the net-like or planar screen, the storage frame 1 is assembled so as to be removable from the frame assembly F as described above. Therefore, together with the storage frame 1, the winding shaft device 11, the insect screen 9, and the handle frame 7 can be detached at the same time as well as the adjusting device P at the upper end (see FIG. 8).

  FIGS. 8A and 8B illustrate a demounting device for the storage frame 1 in a window frame according to an embodiment slightly different from the above embodiment. FIG. 8A shows the assembled state of the frame assembly F, and FIG. 8B shows the storage frame 1. The removed state is shown respectively. That is, (a) shows the state of use, and the frame assembly F is composed of the vertical frame 4 facing the storage frame 1 and the upper and lower frames 2, 3. The base 49 is provided with the adjusting device P at the upper end (in this case, the base plate 51 is under the base 49 but not shown). A connecting piece 49b projects from the base 49 and is screwed to the upper frame 2, and the connecting piece 15a of the lower connecting block 15 is inserted into the lower frame 3 and is also screwed. In this embodiment, it is assumed that the winding shaft device 11 cannot be removed in principle.

  However, when the upper and lower screws are removed and the storage frame 1 is removed, the take-up shaft device 11 is removed while keeping the interior (b), and at the same time, the insect screen 9 and the handle frame 7 are also removed. Therefore, in this state, the adjusting device P at the upper end of the storage frame 1 can be operated to adjust the effect of the winding spring 21 (not shown) with the lid 5 removed, and the inside of the storage frame 1 can be adjusted. You can also clean it. In addition, although the shape of the connection piece 49b becomes various, in this case, it is a rectangular tube shape and the slit which the insect repellent net 9 passes is formed similarly to the said embodiment.

It is the partially cutaway front view which shows the mesh window which concerns on this invention. It is a longitudinal cross-sectional view which shows the winding shaft apparatus in the same mesh window in the connection state with the central gear of the adjustment apparatus of a winding spring. It is a top view which partially cuts and shows the adjustment apparatus in the same mesh window. It is a top view which shows the base | substrate of the adjustment apparatus. It is sectional drawing of the AA arrow of FIG. It is a top view which shows the upper plate of an adjustment apparatus. It is plane explanatory drawing which carried out the cross section which shows the operation state of an adjustment apparatus. It is explanatory drawing which shows the assembly | attachment state (a) and storage state (b) of a storage frame as other embodiment of this invention.

Explanation of symbols

F Frame assembly P Adjusting device for take-up spring of mesh or planar screen 1 Storage frame 2 Upper frame 3 Lower frame 5 Lid 9 Insect net as screen 11 Winding shaft device 11a Winding cylinder 15 Connecting block 15a Connecting piece 17 Center Gear 17a Large gear 17b Ratchet gear 19 Central shaft 21 Winding spring 23 Upper end lifting device 29 Lower end shaft 31 Upper end cap 33 Movable connecting piece 35 Coil spring 49 Base 49a, 49b Connecting piece 50 Sub gear 51 Base plate 51a Connecting piece 52 Compression spring 55 Perimeter wall 56 Oscillating lever 57 Opening port 61 Storage chamber 73 Claw 71 Ratchet 75 Push button

Claims (3)

  The frame assembly on which the screen is stretched is composed of an upper and lower frame that engages with a handle frame at the end of the screen, a storage frame as a vertical frame in which a winding shaft device for winding the screen is installed, and the other vertical frame. The take-up shaft device is configured such that the take-up cylinder rotates against the elastic force of the coil spring with respect to the central axis by pulling out the screen, and is wound by reverse rotation accompanying the elastic force. An adjustment device for the winding spring by rotation of the central shaft is provided at the upper end, and an adjustment device for the winding spring is provided between the upper end of the storage frame by fixing the base and the base plate overlapping therewith. The connecting piece to be inserted into the upper frame protrudes from at least one of the base and the base plate, and the connecting block having the connecting piece to be inserted into the lower frame is fixed to the lower end of the storage frame. In addition, the take-up shaft device is supported and the connecting piece is removed from the upper and lower frames, so that the screen, the take-up shaft device for the screen, the adjusting device for the take-up spring and the handle frame are attached to the storage frame. An apparatus for removing a storage frame of a screen in a frame assembly, wherein the storage frame can be removed.   The central axis of the winding shaft device is detachably connected to the adjusting device of the winding spring at the upper end of the storage frame so as to be disengageable at the terminal shaft at the upper end. An upper end lifting device that can lift the winding cylinder together with the central axis against the elasticity of the spring with respect to the terminal shaft is provided, and a lower end shaft that can be pulled out from the connecting block by the lifting is provided at the lower end of the winding shaft device. The apparatus for removing and attaching a storage frame of a screen in a frame assembly according to claim 1. The upper end lifting device includes a concave upper end cap fitted to the upper end of the winding cylinder, a movable connecting piece dropped into the concave portion, and a coil spring built in the upper end cap to resist the drop. The apparatus for removing a storage frame of a screen in a frame assembly according to claim 2, wherein the apparatus is configured.

Images