JP5326249B2 - Screen door stopper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen door non slip device preventing a screen door from slipping out of a lower rail. <P>SOLUTION: A support member 21 is provided at the lower part of the screen door 7, and the support member 21 is provided with a non slip member 22 in a vertically movable manner. The non slip member 22 is energized downward by an energizing member 23 to abut on the upper face of a lower frame 3 of a frame body 6 on the indoor side of the lower rail 15. The whole rising amount of the lower rail 15 from the upper face of the lower frame 3 of the frame body 6 to the upper end of the lower rail 15 is made a catching allowance L for preventing the screen door 7 from slipping out of the lower rail 15. Consequently, the screen door 7 hardly slips out of the lower rail 15. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a screen door locking device that prevents the screen door from coming off the lower rail.

  Conventionally, as described in Patent Document 1, a locking member attached to a support member fixed to a lower part of a door such as a screen door is urged in a direction to move downward by a compression coil spring. By fitting a semicircular cross-section groove formed in the lower part of the locking member to the upper part of the lower rail of the window frame, the groove of the locking member does not come off from the lower rail of the window frame, etc. The door is prevented from coming off, and the support member is released from the door removal allowable position where the stopper member is lifted to the uppermost position and the lifted state of the stopper member is released, and the stopper member is moved downward. A switching member that is switched and held to an allowable door removal prohibition position is attached, and after the door such as a screen door is attached to the window frame, the switching member cannot be moved to the door removal prohibition position and the door such as the screen door cannot be removed. And screen door Which door when removing has been proposed anti-removal device adapted to be removed from the window frame by lifting the door, such as window screen after moving the switching member to Toto outside the allowed positions.

JP 2004-346694 A

In the thing of patent document 1, although the cross-sectional groove | channel of the cross-section of the locking member urged downward is fitted in the upper part of the lower rail of the window frame, the hook between the locking member and the lower rail The margin (the amount of engagement seen from the indoor / outdoor direction, which is the difference between the lower end height of the locking member that forms the groove and the upper end height of the lower rail) is small, so there is a force in the frame projection direction on the screen door due to storms or carelessness. When the screen door is bent by the action and the lower lid is lifted, or when the lower door is lifted by some big impact on the screen door, the semicircular cross-section groove formed in the lower part of the locking member is a window frame There is a problem that it is easy to come off from the lower rail.
Accordingly, an object of the present invention is to solve the above-described problems. A screen door slip-off preventing device that can reliably prevent the screen door from coming off the lower rail even when the lower arm of the screen door is lifted relatively large. The purpose is to provide.

The present invention relates to a screen door detachment preventing device that prevents a screen door fitted to the frame body so as to be openable to the left and right from the lower rail. A lifting member inserted into the housing part from above the hole provided in the lower arm of the screen door is fitted to the housing part so that a slip-off preventing member composed of a lifting body, a locking plate and a shaft part can be moved up and down. The elevating body is fixed to the elevating body and is urged downward by an urging member fitted in the shaft portion, and is provided so as to be positioned on the indoor side of the lower rail from the indoor end of the lower part of the elevating body. The lower end of the locking plate is brought into contact with the upper surface of the bottom wall of the lower rail of the frame body, and the amount of rising of all the lower rails is used as a margin to prevent the screen door from being detached. The urging force of the urging member is a knob formed on the lifting member. The lower end of the locking plate in contact with the upper surface of the bottom wall of the lower rail is moved to the height of the lower end of the lower end of the screen door, and then the lower end of the screen door is moved to the lower end of the locking plate. Is lifted to a position higher than the upper end of the lower rail to eliminate the interference between the locking plate and the lower rail (claim 1).

According to the invention described in claim 1 of the present invention, a support member in which a receiving member is formed by bending a plate member is attached to the lower arm of the screen door, and the lifting and lowering body, the locking plate, and the shaft portion are attached to the receiving portion. And a lifting member inserted from above a hole provided in the lower arm of the screen door is fixed to the lifting body, and is lifted by a biasing member fitted in the shaft portion. The body is biased downward, and the lower end of the locking plate provided so as to be located on the indoor side of the lower rail from the indoor side end of the lower part of the lifting body contacts the upper surface of the bottom wall of the lower rail of the frame All the amount of rising of the lower rail is used as the allowance for the screen door to prevent the screen door from coming off. Lift the lower end of the locking plate in contact with the upper surface of the bottom wall of the lower rail. After moving to the height of the lower end of the lower arm of the door, the lower arm of the screen door is lifted to a position where the lower end of the locking plate is higher than the upper end of the lower rail, and the amount of engagement between the locking plate and the lower rail is increased. Since it has been eliminated, the entire amount of rise from the upper surface of the lower frame of the frame to the upper end of the lower rail can be used, and a load acts on the screen door in the direction of the frame door due to storms or carelessness. Even if it is bent, there is an effect that the screen door can be hardly detached from the lower rail.

Embodiments will be described with reference to the drawings.
The sliding sash 1 shown in FIG. 1 has a screen 6 formed by framing an upper frame 2, a lower frame 3, and left and right eaves frames 4, 5. It is configured to be fitted. The screen door 7 includes a square-shaped screen door rod 12 including an upper rod 8, a lower rod 9 and left and right rods 10 and 11, and a net 13 attached to the screen door rod 12. The screen door 7 includes a fitting groove 7 a provided in the upper part of the screen door 7 and a door wheel 7 b provided in the lower part of the screen door 7, the outdoor piece 14 (upper rail for the screen door 7) of the upper frame 2 and the lower rail of the lower frame 3. 15 are respectively fitted along the lower rail 15 so as to be openable to the left and right.

  At both ends of the lower arm 9 of the screen door 7, a screen door locking device A is mounted so as to prevent the screen door 7 fitted to the frame body 6 so as to be opened and closed left and right from coming off from the lower rail 15. The screen door locking device A includes a supporting member 21 fixed to the lower arm 9 of the screen door 7, a locking member 22 provided to be movable up and down with respect to the supporting member 21, and a biasing member 22 that biases the locking member 22 downward. A biasing member 23 provided between the support member 21 and the locking member 22 and a lifting member 24 fixed to the locking member 22 are provided so as to contact the upper surface of the lower frame 3 of the frame body 6. In the embodiment, the urging member 23 uses a coil spring.

  The support member 21 is formed by bending the left and right end portions of the plate member in the same direction so as to be U-shaped, and the accommodating portion 27 is formed between the left and right side plates 34 and 35. The left and right side plates 34 and 35 are provided with attachment portions 30 respectively. The attachment portions 30 are brought into contact with the upper wall 28 of the lower arm 9 of the screen door 7 and fixed with screws (not shown). The detachment prevention member 22 of the present embodiment is a rectangular parallelepiped lifting body 31 that is fitted in the housing portion 27 so as to be movable up and down, and from the indoor side end portion of the lower part of the lifting body 31 to the indoor side of the lower rail 15. A thin-plate-like locking plate 25 that protrudes downward and larger than the rising amount of the lower rail 15, a small-diameter upper shaft portion 26 a erected on the upper portion of the elevating body 31, and a large-diameter lower portion A shaft portion 26 having a circular cross section composed of a shaft portion 26b and a step portion 26c therebetween is provided, and these are integrally molded with resin. The detachment prevention member 22 is not limited to one integrally molded with resin, and may be formed of several parts, or may be formed of metal or the like.

  A coil spring 23 is fitted into the shaft portion 26 of the stopper member 22. The upper wall 28 of the lower arm 9 of the screen door 7 is provided with a hole 29 having a diameter smaller than that of the large-diameter lower shaft portion 26b of the retaining member 22 and larger than that of the small-diameter upper shaft portion 26a. The upper shaft portion 26a of the shaft portion 26 of the detachment preventing member 22 housed in the housing portion 27 of the member 21 is inserted so as to be movable up and down. The upper end of the coil spring 23 fitted into the shaft portion 26 is brought into contact with the lower surface of the upper wall 28 of the lower rod 9 and the lower end of the coil spring 23 is brought into contact with the upper surface of the elevating body 31, thereby urging the locking member 22 downward. The lower end of the locking plate 25 is in contact with the upper surface of the bottom wall 3a of the lower frame 3 at the indoor side position of the lower rail 15. The lifting member 24 is formed with a retaining portion 24b that is bent near the upper end surface of the shaft portion 26 by bending the upper end side of the plate member, and a knob portion 24a that rises upward is provided on the retaining portion 24b. . The lifting member 24 is inserted from above into a rectangular hole 33 provided in the upper wall 28 of the lower arm 9 of the screen door 7, and the lower end side of the lifting member 24 is fixed to the lifting body 31 of the locking member 22 with a screw 32. Yes. When the knob portion 24a of the lifting member 24 is lifted against the spring force of the coil spring 23, the lower end of the retaining member 22 is lifted in the vicinity of the lower end of the lower lid 9 and A stepped portion 26c at the upper end of the lower shaft portion 26b having a diameter larger than that of the hole 29 provided in the upper wall 28 is brought into contact with the lower surface of the upper wall 28 so that the lifting prevention member 22 is prevented from being lifted with respect to the lower collar 9.

  Since the shaft portion 26 of the stopper member 22 has a circular shape in the support member 21, when the screen door 7 is removed from the frame body 6, the stopper member 22 is attached to the lower arm 9 of the screen door 7. It also has a role to prevent rotation. The retaining portion 24b of the lifting member 24 is in contact with the upper surface of the upper wall 28 of the lower rod 9 so that the retaining member 22 and the lifting member 24 do not fall downward when the screen door 7 is detached from the frame body 6. However, it also has a function as a cover part that covers the upper part of the shaft part 26 and improves the appearance. In the present embodiment, the shaft portion 26 of the locking member 22 has a circular cross section. However, for example, a shaft having a square cross section may be used.

  Next, the operation of the screen door locking device A configured as described above will be described. When the screen door 7 is attached to the frame body 6, the knob portions 24 a of the left and right lifting members 24 are lifted with the fitting groove 7 a at the top of the screen door 7 fitted to the outdoor piece 14 (upper rail) of the upper frame 2. Thus, the locking member 22 is lifted against the urging force of the spring 23, and the lower end portion of the locking plate 25 of the locking member 22 is brought close to the height of the lower end portion of the lower collar 9 by lifting the locking member 22. When lifted, the step 26c of the shaft portion 26 of the locking member 22 comes into contact with the upper wall 28 of the lower collar 9, and the lower edge of the locking member 22 is lowered by lifting the locking member 22 thereafter. Lifting up to a position higher than the upper end of the lower rail 15 eliminates the allowance L between the locking plate 25 of the locking member 22 and the lower rail 15, and in that state, moves the lower arm 9 of the screen door 7 above the lower rail 15. Let the door wheel 7b on the lower rail 15 To attach the screen door 7 to the frame 6. Then, when the knob portion 24 a of the lifting member 24 is released, the coil spring 23 comes into contact with the lower end portion of the locking plate 25 of the locking member 22 against the upper surface of the bottom wall 3 a of the lower frame 3. In this state, when the screen door 7 is about to come off from the lower rail 15 to the outdoor side, the engagement amount of the locking member 22 and the lower rail 15 is the entire rising amount of the lower rail 15 as indicated by L in FIG. Extremely large dimensions.

  Accordingly, even when some large force in the indoor / outdoor direction acts on the screen door 7 and the screen door 7 is greatly bent to lift the lower eyelid 9 or when the screen door 7 is subjected to an impact in the vertical direction and the lower eyelid 9 is lifted, The slip-off preventing member 22 can be held in a state in which it can be engaged with the lower rail 15 in the indoor / outdoor direction, and the screen door 7 is reliably prevented from coming off the lower rail 15 by the engagement of the slip-off preventing member 22 and the lower rail 15. it can. Further, since the screen door 7 can be provided with a function of preventing the screen door from coming off by simply moving the knob portion 24a of the lifting member 24 after the screen door 7 is attached to the frame body 6, it is prevented from coming off as described in Patent Document 1. There is no need for a switching member (lifting holding means) for holding the member 22 in a state where it is lifted to the screen door removal allowable position, and the switching member (lifting holding means) is attached after the screen door 7 is attached to the frame body 6. There is an advantage that it is possible to eliminate the problem that the screen door is removed by forgetting the operation of returning from the screen door removal permission position to the screen door removal prohibition position.

  When the screen door 7 is removed from the frame body 6, the knob portion 24 a of the left and right lifting members 24 is lifted against the urging force of the spring 23 to lift the screen door 7 slightly in the same manner as when attaching to the frame body 6. The screen door 7 can be easily removed from the frame body 6 to the outdoor side by eliminating the allowance L between the member 22 and the lower rail 15. In order to enable the lower end portion of the locking member 22 to be raised above the upper end portion of the lower rail 15 when the screen door 7 is lifted up to the uppermost portion with the knob portion 24a, as shown in FIG. In the state where the screen door 7 is lifted up to the uppermost part by holding, for example, the rods 10 and 11 other than the lifting member 24 and the locking member 22, the locking member 22 positioned at the lowermost end is lifted by lifting the lifting member 24. The distance L ′ between the step portion 26c of the shaft portion 26 and the upper wall 28 of the lower rod 9 is set so that the lower end portion of the locking member 22 can be lifted so as to be higher than the upper end portion of the lower rail 15. It is provided to be larger than the rising amount of 15.

  As described above, since the lower end portion of the locking member 22 is in contact with the upper surface of the bottom wall 3a of the lower frame 3 on the indoor side of the lower rail 15, the lower rail 15 extends from the upper surface of the bottom wall 3a of the lower frame 3. All the rising amounts of the lower rail 15 up to the upper end portion can be set as a contact amount L between the release preventing member 22 and the lower rail 15, and the allowance for preventing the release can be maximized. Therefore, even when a load acts on the screen door 7 in the frame expectation direction due to a storm or carelessness and the screen door 7 is bent, the screen door 7 can be prevented from being detached from the lower rail 15 due to the large allowance L. Even if the screen door 7 is lifted up to the top by holding the screen door 7 other than the lifting member 24 and the locking member 22 from the state where the screen door 7 is attached to the frame body 6, the locking member 22 is fitted to the shaft portion 26 and the lifting body 31. The coil spring 23 interposed between the lower rods 9 is biased downward, the lower end portion of the locking member 22 comes into contact with the upper surface of the bottom wall 3a of the lower frame 3, and the locking member 22 and the lower rail 15 are engaged. The allowance L is kept at a large amount that is the entire rising amount of the lower rail 15. In this embodiment, by attaching the screen door locking device A to both ends of the lower arm 9 of the screen door 7, the left and right sides of the screen door 7 are similarly prevented from coming off from the frame body 6 when the screen door 7 is opened and closed left and right. be able to.

  In the above embodiment, the lifting member 24 is held to lift the lower part of the screen door 7 so that the screen door 7 is attached to and detached from the frame body 6. However, the lifting member 24 is temporarily moved to the lifting position (screen door removal allowable position). Lifting holding means (switching member) is provided, and the screen door 7 is lifted with the eaves 10 and 11 while the lifting member 24 is lifted and held by the lifting holding means, and the screen door 7 is framed 6. You may make it attach or detach. As the lifting and holding means, for example, a stopper member is interposed between the retaining portion 24b of the lifting member 24 and the upper wall 28 of the lower collar 9, or a notch provided on the side end surface of the lifting member 24 is provided on the upper wall 28. However, it is necessary to be careful not to forget to release the lifting and holding means after the screen door 7 is attached to the frame body 6.

It is a figure which shows the sliding sash provided with the screen door slip-off prevention apparatus of this invention. It is the II-II sectional view taken on the line of FIG. It is a figure which shows the attachment state of a screen door locking device. It is a figure which shows the state by which the screen door was lifted to the uppermost part. It is the figure which expanded the screen door slip-off prevention apparatus in the normal state with which the doorwheel was fitted by the lower rail. It is the figure which expanded the screen door slip-off prevention device in the state where the screen door was lifted to the uppermost part. It is the III-III sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Lower frame 6 Frame 7 Screen door 15 Lower rail 21 Support member 22 Fall prevention member 23 Energizing member 24 Lifting member 24a Knob part A Screen door slip-off device L

Claims (1)

In a screen door locking device that prevents the screen door fitted to the frame so that it can be opened / closed left and right from the lower rail, a support member is formed by folding a plate member on the lower arm of the screen door to form an accommodation portion, A fitting member, which includes a lifting body, a locking plate, and a shaft portion, is fitted in the housing portion so as to be movable up and down, and a lifting member inserted from above a hole provided in a lower arm of the screen door is attached to the lifting body. A locking plate provided so as to be positioned on the indoor side of the lower rail from the indoor side end portion of the lower part of the lifting body by urging the lifting body downward by a biasing member fixed and fitted in the shaft portion. The lower end is brought into contact with the upper surface of the bottom wall of the lower rail of the frame, and the amount of rising of all the lower rails is used as a margin to prevent the screen door from being detached. Hold the formed knob against the biasing force of the biasing member. After moving the lower end of the locking plate that is in contact with the upper surface of the bottom wall of the lower rail to the height of the lower end of the lower end of the screen door, the lower end of the screen door is moved to the lower rail A screen door slip-off preventing device that is lifted up to a position higher than the upper end of the door so as to eliminate the interference between the locking plate and the lower rail .

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