JP6169834B2 - Bottom cap - Google Patents

Description

  The present invention relates to a bottom cap that is attached to an end of a bottom rail in a horizontal blind that is a solar radiation shielding device.

  As a horizontal blind which is a solar shading device, a plurality of ladder cords supporting a large number of slats are suspended from a head box attached to the upper window frame, and an operation cord is suspended, and is supported suspended from the lower end of the ladder cord. In some cases, one end of the operation cord is held by the bottom cap attached to the end of the bottom rail (see, for example, Patent Document 1). When such a bottom cap is used, even if the operation cord is pulled downward, one end portion of the operation cord rises together with the bottom rail (bottom cap). For example, one end portion of the operation cord reaches the floor surface and is beautiful. It is prevented from being damaged.

  Some of the operation codes of such horizontal blinds are provided with a safety joint having a fail-safe function. The safety joint is composed of two parts that can be disassembled, for example, and the middle end part of the middle part of the operation cord is connected to each, and if an excessive force that greatly exceeds the force applied during normal operation is applied, It is disassembled by force to make the intermediate end of the operation cord a free end, for example, to ensure the safety of residents and prevent damage to the mechanism.

Japanese Utility Model Publication No. 61-78994

  However, the configuration using the safety joint as described above has a problem that, for example, the number of parts increases. In addition, for example, there is a problem that a safety joint provided in the middle of the operation cord impairs the beauty.

  The present invention has been made in order to solve the above-mentioned problems, and its purpose is a bottom that has a fail-safe function, can reduce the number of parts of the solar shading device, and can improve the aesthetics. To provide a cap.

In the first aspect of the present invention, the bottom cap is attached to the end portion of the bottom rail of the solar shading device and can hold one end portion of the operation cord, and the attaching portion is attached to the bottom rail. A movable portion that can be fitted to the attachment portion, the movable portion being formed separately from the attachment portion, and holding one end portion of the operation cord. One end portion of the operation cord is held in a state where the movable portion is fitted to the attachment portion, and when the preset force is applied to the operation cord holding the one end portion, the attachment portion and the movable portion The one end portion of the operation cord becomes a free end separated from the attachment portion , and the movable portion is in a direction in which the operation cord is led out from the bottom cap with respect to the attachment portion. The gist is that it deviates in a different direction .

According to a second aspect of the present invention, in the bottom cap according to the first aspect, a fitting hole is formed in one of the attachment portion and the movable portion, and the attachment portion and the movable portion On the other side, the movable portion is held in the attachment portion by being fitted into the fitting hole, and the fitting is released when a preset force is applied from that state. The gist of the present invention is that an insertion shaft portion is formed in which the movable portion is separated from the portion .

According to a third aspect of the present invention, in the bottom cap according to the first aspect, the movable portion has an insertion portion that can be inserted into the attachment portion, and the insertion portion includes the operation cord. The gist is that an accommodation portion capable of accommodating a knot ball formed at one end portion is formed .

According to a fourth aspect of the present invention, in the bottom cap according to the third aspect, a fitting convex portion is formed on one of the attachment portion and the insertion portion, and the attachment portion and the insertion portion. On the other side, the fitting convex portion is fitted to hold the movable portion on the attachment portion, and when a preset force is applied from that state, the fitting is released and the fitting portion is released. The gist of the present invention is that a fitting recess in which the movable portion is separated from the attachment portion is formed .

The invention according to claim 5 is a bottom cap attached to the end of the bottom rail of the solar shading device and capable of holding one end of the operation cord, and the attaching portion attached to the bottom rail; A movable portion that can be fitted to the attachment portion, and the movable portion is integrally formed with the attachment portion, and the movable portion rotates in one of the vertical directions. The operation cord is provided with a movable cover portion that is provided and opens and closes, and one end portion of the operation cord is held in a state where the movable portion is fitted to the attachment portion, and the one end portion is held. When a preset force is applied, the fitting between the attachment portion and the movable portion is released, and one end portion of the operation cord becomes a free end separated from the attachment portion, and the attachment portion and the movable portion The operation cord is in a state where the movable part is fitted to the attachment part. A clamping part for clamping one end part is formed, and the clamping part includes a projecting part on one of the attachment part and the movable part, and the other of the attachment part and the movable part Further, the present invention includes a clamping wall that clamps the operation cord with the projecting portion .

According to a sixth aspect of the present invention, in the bottom cap according to the fifth aspect, the attachment portion is provided with an upper cover portion, and the movable portion is rotatable below the upper cover portion. The gist is that the lower movable cover portion is provided and opened and closed .

The invention according to claim 7 is a bottom cap attached to the end of the bottom rail of the solar shading device and capable of holding one end of the operation cord, and an attachment attached to the bottom rail; A movable portion that can be fitted to the attachment portion, and the movable portion is integrally formed with the attachment portion, and the movable portion is provided so as to be rotatable upward. An upper movable cover portion that opens and closes and a lower movable cover portion that is pivotably provided below the upper movable cover portion and opens and closes, and the movable portion is fitted to the attachment portion When one end of the operation cord is held and a predetermined force is applied to the operation code holding the one end, the fitting of the attachment portion and the movable portion is released and one end of the operation cord is released. The gist is that the portion becomes a free end separated from the attachment portion .

In the invention according to claim 8 , in the bottom cap according to any one of claims 5 to 7, a fitting groove is formed in one of the attachment part and the movable part, The other part of the attachment part and the movable part is fitted into the fitting groove to close the movable part, and when a preset force is applied from that state, the fitting is released. The gist of the present invention is that a fitting convex portion that opens the movable portion is formed .

According to a ninth aspect of the present invention, in the bottom cap according to any one of the first to eighth aspects, a lead-out port through which the held operation cord is led out is provided in the front portion. To do.

According to a tenth aspect of the present invention, in the bottom cap according to any one of the first to ninth aspects, the bottom cap can be attached to either end of the bottom rail. .

  ADVANTAGE OF THE INVENTION According to this invention, it has a fail safe function, can reduce the number of parts of a solar radiation shielding apparatus, and can provide the bottom cap which can improve aesthetics.

The front view which shows the horizontal blind in 1st embodiment. The disassembled perspective view of the bottom cap in 1st embodiment. (A) The perspective view of the bottom cap in 2nd embodiment. (B) The perspective view of the non-fitting state of the bottom cap in 2nd embodiment. (A) The perspective view of the bottom cap in 3rd embodiment. (B) The perspective view of the non-fitting state of the bottom cap in 3rd embodiment. (A) The perspective view of the bottom cap in 4th embodiment. (B) The perspective view of the non-fitting state of the bottom cap in 4th embodiment. (A) The disassembled perspective view of the bottom cap in 5th embodiment. (B) Sectional drawing of the bottom cap in 5th embodiment. (C) Sectional drawing of the non-fitted state of the bottom cap in the fifth embodiment. The perspective view of the bottom cap in another example. (A) The side view of the bottom cap in another example. (B) Sectional drawing of the bottom cap in another example.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
As shown in FIG. 1, a horizontal blind that is a solar shading device has a plurality of ladder slats 103 suspended from a head box 101 via a plurality of ladder cords 102. 2 is attached.

  An upper end portion of the ladder cord 102 is attached to a support drum 104 in the head box 101, and the support drum 104 is rotatably supported by a support member 105. A drive shaft 106 is inserted into the support drum 104, and one end of the drive shaft 106 is inserted into a gear box 107 provided at one end of the head box 101.

  When the operation rod 108 is suspended from the gear box 107 and the operation rod 108 is rotated, the drive shaft 106 is rotated through the gear box, and the support drum 104 is rotated with the rotation of the drive shaft 106.

Accordingly, the support drum 104 is rotated by rotating the operation rod 108, and each slat 103 is rotated via the ladder cord 102 by the rotation of the support drum 104.
In the slats 103, elevating cords 109 are inserted in the vicinity of the support portions by the ladder cords 102, and the bottom rail 2 is suspended and supported at one end of the elevating cords 109.

  The other ends of the plurality of lifting cords 109 are guided to the one end side in the head box 101, are suspended from the head box 101 via the stopper device 110, and are connected to the code equalizer 111. The base end of the operation cord 5 is connected to the cord equalizer 111, and the distal end of the operation cord 5 is held by the bottom cap 1 attached to the end portion of the bottom rail 2.

  Then, by operating the operation cord 5 and pulling the lifting / lowering cord 109 from the head box 101, the bottom rail 2 is lifted and sequentially lifted from the lower slat 103. Further, if the lifting / lowering cord 109 is pulled into the head box 101 based on the weight of the bottom rail 2 and the slat 103, the bottom rail 2 is lowered to return to a state in which the ladder cord 102 is sequentially supported from the upper slat 103. To do.

If the operation cord 5 is released, the stopper device 110 is operated to prevent the bottom rail 2 from falling by its own weight, and the slat 103 is suspended and supported at a desired height.
As shown in FIG. 2, the bottom cap 1 can be fitted to the attachment member 3 and an attachment member 3 as an attachment portion attached (externally fitted) to the end portion of the bottom rail 2. And a fitting member 4 as a movable portion.

  The attachment member 3 is made of a resin material, and is formed in a substantially bottomed rectangular tube shape that can be attached by being externally fitted to the end portion of the bottom rail 2. A fitting hole 3a is formed in the side surface portion (the portion facing the end portion in the longitudinal direction of the bottom rail 2). In addition, the fitting hole 3a of this embodiment consists of the circular part 3b seeing from the penetration direction, and the notch part 3c formed in this circular 180 degree space | interval.

  The fitting member 4 is made of a resin material, and is formed in a substantially bottomed rectangular tube shape. The bottom portion of the fitting member 4 is a substantially cylindrical shape that can be fitted into the fitting hole 3a on the side surface portion in the attached state of the horizontal blind. A shaped insertion shaft portion 4a is erected. A fitting large-diameter portion 4b that fits into the fitting hole 3a is formed at the distal end portion of the fitting insertion shaft portion 4a by increasing its outer diameter. That is, the fitting hole 3 a and the fitting large diameter portion 4 b have a so-called snap-fit structure, and the fitting member 4 is formed by fitting the fitting large diameter portion 4 b into the fitting hole 3 a of the attachment member 3. When the fitting member 4 is held with respect to the attachment member 3 and pulled with a predetermined force from the state, the fitting is released.

In addition, a lead-out port 4 d that communicates with the inside and outside of the fitting member 4 is formed in the front surface portion 4 c of the fitting member 4, in other words, the wall portion that forms the outer surface on the indoor side.
Then, one end (tip) portion 5a of the operation cord 5 suspended from the head box is inserted into the outlet 4d from the outside, and the knotting ball 5b larger than the outlet 4d is formed on the inner side, thereby removing the operation cord 5. Stopped and held by the fitting member 4.

  Here, the fitting hole 3a and the fitting large-diameter portion 4b release the fitting when the operation cord 5 is applied with a preset force that greatly exceeds the force applied during normal operation. 5 is formed to be a free end separated from the attachment member 3 (bottom rail 2) together with the fitting member 4. In this embodiment, as shown in FIG. 1, the bottom cap 1 that holds the operation cord 5 is attached to the right end of the bottom rail 2 when viewed from the indoor side. 1 can be attached to the left end of the bottom rail 2 in the same manner. Therefore, even when the operation cord 5 is held on either the left or right side of the bottom rail 2, the product number can be handled by one bottom cap 1.

Next, the operation of the first embodiment described above will be described.
When one end portion 5a of the operation cord 5 is held by the fitting member 4 and the fitting member 4 is fitted to the attachment member 3, the operation cord 5 is pulled down to perform a normal operation. 2 (bottom cap 1) and the one end portion 5a of the operation cord 5 rise.

  Further, the force applied to the operation cord 5 during normal operation is greatly exceeded in a state where the one end portion 5a of the operation cord 5 is held by the fitting member 4 and the fitting member 4 is fitted to the attachment member 3. When a preset force is applied, the fitting is released and the one end portion 5a of the operation cord 5 becomes a free end separated from the attachment member 3 (bottom rail 2) together with the fitting member 4.

Next, the characteristic effects of the first embodiment will be described below.
(1) When the operation cord 5 is pulled down and a normal operation is performed, the one end portion 5a of the operation cord 5 rises together with the bottom rail 2 (bottom cap 1). It is prevented that the aesthetic appearance is impaired by reaching the surface.

  Further, when a preset force is applied to the operation cord 5 so as to greatly exceed the force applied during normal operation, the fitting is released, and the one end 5a of the operation cord 5 together with the fitting member 4 is attached to the attachment member 3. Since the free end is separated from the (bottom rail 2), for example, the safety of the occupant can be ensured or the mechanism can be prevented from being damaged. That is, the bottom cap 1 has a fail-safe function.

  And compared with what provides the safety joint which consists of two components in the middle of an operation code, the number of parts of a horizontal blind (sunlight shielding device) can be reduced, for example. Further, the aesthetic appearance can be improved as compared with a case where a safety joint is provided in the middle of the operation cord. Furthermore, even if the one end portion 5a of the operation cord 5 becomes a free end, the fitting member 4 is again fitted to the attachment member 3, so that the one end portion 5a of the operation cord 5 is easily held. Can be restored.

  (2) The fitting member 4 as the movable portion is molded separately from the attachment member 3 as the attachment portion, and the one end portion 5a of the operation cord 5 is held. Even when the fitting of the joint member 4 is released, the fitting member 4 is prevented from being lost. That is, when the fitting member 4 is formed separately from the attachment member 3 and the one end portion 5a of the operation cord 5 is not held, the fitting member 4 falls when the fitting is released. There is a risk of losing the product by rolling or the like, but this can be avoided.

  (3) Since the lead-out port 4d through which the retained operation cord 5 is led out is provided in the front surface portion 4c of the fitting member 4 (bottom cap 1), the operation cord 5 protrudes from the front surface portion 4c to the indoor side. Further, it is possible to suppress interference with the window frame as in the case where the outlet port is provided in the side surface portion and the operation cord protrudes from the side surface portion to the window frame side.

(Second embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to FIG.
A bottom cap 11 shown in FIGS. 3A and 3B includes an attachment portion 12 attached (externally fitted) to an end portion of the bottom rail 2 and a movable portion that can be fitted to the attachment portion 12. The lower movable cover part 13 is provided.

  The attachment portion 12 is made of a resin material, and has a substantially square cylindrical tubular portion 12a that can be attached by being externally fitted to an end portion of the bottom rail 2, and an upper half of the tubular portion 12a (the bottom And an upper cover portion 12b extending in the longitudinal direction of the rail 2. As shown in FIG. 3 (b), the upper cover portion 12b has a shape with an opening at the bottom, and is provided at the lower end of the front surface portion 12c, in other words, at the lower end of the wall portion that constitutes the indoor outer surface. An upper lead-out port 12d that is recessed in a semicircular shape is formed. Further, in the upper cover portion 12b, a fitting convex portion 12f (in FIG. 3B) extending along the longitudinal direction of the bottom rail 2 is formed on the inner surface of the front surface portion 12c and the rear surface portion 12e facing the front surface portion 12c. Further, only the fitting convex portion 12f on the rear surface portion 12e side is shown in a protruding manner.

  The lower movable cover portion 13 is paired with the same shape as the upper cover portion 12b, and is connected to the lower end of the attachment portion 12 by a thin hinge portion 14 (see FIG. 3A). It is movable with respect to 12, specifically, is rotatable about an axial center along the front-rear direction and is integrally formed with the attachment portion 12. The lower movable cover portion 13 has a semicircular concave shape so as to form a circular outlet with the upper outlet 12d in a closed state (see FIG. 3A). A lead-out port 13a is formed. In addition, the lower movable cover portion 13 has a fitting groove 13b (see FIG. 3B) in which the fitting convex portion 12f is fitted in a closed state (see FIG. 3A). Is formed.

  The one end portion 5a of the operation cord 5 is such that the knot ball 5b is connected to the outlet port (the upper outlet port 12d and the lower outlet port 13a) when the lower movable cover portion 13 is in the open state (see FIG. 3B). ), The rotating state of the lower movable cover portion 13 is closed (see FIG. 3A), and the fitting convex portion 12f is fitted into the fitting groove 13b. The bottom cap 11 is held.

  Here, when the fitting convex portion 12f and the fitting groove 13b are applied with a preset force that greatly exceeds the force applied to the operation cord 5 during normal operation, the fitting is released and the lower movable cover is released. The rotating state of the portion 13 is an open state (see FIG. 3B), and the one end portion 5a of the operation cord 5 is formed to be a free end separated from the bottom cap 11 (bottom rail 2).

Next, the operation of the above-described second embodiment will be described.
When one end 5a of the operation cord 5 is held by the bottom cap 11 (see FIG. 3A) and the operation cord 5 is pulled downward to perform a normal operation, the bottom rail 2 (bottom cap 11) is used together. One end portion 5a of the operation cord 5 rises.

  When a preset force is applied to the operation cord 5 so as to greatly exceed the force applied during normal operation, the fitting is released and the rotating state of the lower movable cover 13 is opened (FIG. 3 ( b)), and the one end portion 5a of the operation cord 5 becomes a free end separated from the bottom cap 11 (bottom rail 2).

Next, the characteristic effects of the second embodiment will be described below.
(1) When the operation cord 5 is pulled downward and a normal operation is performed, the one end portion 5a of the operation cord 5 rises together with the bottom rail 2 (bottom cap 11). It is prevented that the aesthetic appearance is impaired by reaching the surface.

  When a preset force is applied to the operation cord 5 so as to greatly exceed the force applied during normal operation, the fitting is released and the one end 5a of the operation cord 5 is removed from the bottom cap 11 (bottom rail 2). Since the free ends are separated from each other, for example, the safety of the occupant can be ensured and the damage to the mechanism can be prevented. That is, the bottom cap 11 has a fail safe function.

  And compared with what provides the safety joint which consists of two components in the middle of an operation code, the number of parts of a horizontal blind (sunlight shielding device) can be reduced, for example. Further, the aesthetic appearance can be improved as compared with a case where a safety joint is provided in the middle of the operation cord. Furthermore, even if the one end portion 5a of the operation cord 5 becomes a free end, the turning state of the lower movable cover portion 13 is closed again (see FIG. 3A), and the fitting convex portion 12f is fitted into the fitting groove. By fitting to 13b, the operation cord 5 can be easily returned to the state where the one end portion 5a is held.

(2) Since the lower movable cover portion 13 as the movable portion is integrally formed with the attachment portion 12, the number of parts can be further reduced as compared with the case where it is formed separately.
(3) Since the outlet port (the upper outlet port 12d and the lower outlet port 13a) through which the held operation cord 5 is led out is provided in the front surface portion (12c) of the bottom cap 11, the operation cord 5 12c) projecting indoors, for example, interference with the window frame can be suppressed as in the case where the outlet port is provided on the side surface and the operation cord projects from the side surface to the window frame.

  (4) The attachment portion 12 is provided with an upper cover portion 12b, and the movable portion is provided as a lower movable cover portion 13 that is rotatably provided below the upper cover portion 12b and opens and closes. The aesthetics seen from become better.

(Third embodiment)
Hereinafter, a third embodiment of the present invention will be described with reference to FIG.
A bottom cap 21 shown in FIGS. 4A and 4B includes an attachment portion 22 attached (externally fitted) to the end portion of the bottom rail 2 and a movable portion that can be fitted to the attachment portion 22. The upper movable cover part 23 and the lower movable cover part 24 are provided.

  The attachment portion 22 is made of a resin material, and has a bottomed tubular portion 22a having a substantially bottomed rectangular tubular shape that can be attached by being fitted to the end of the bottom rail 2, and a bottomed tubular portion 22a. It has the back extension part 22b (refer FIG.4 (b)) extended from the rear end (in the longitudinal direction of the bottom rail 2). In addition, a bulging portion 22c is formed at the bottom of the bottomed cylindrical portion 22a at the center of the side surface in the horizontal blind mounting state, and a pair of upper and lower fittings is formed on the front surface of the bulging portion 22c. The joint convex part 22d is provided in a projecting manner.

  The upper movable cover portion 23 is connected to the upper end of the rear extension portion 22b by a thin hinge portion 25, and is movable with respect to the attachment portion 22. Specifically, the axis is along the left-right direction (longitudinal direction of the bottom rail 2). It can be rotated around the center and is integrally formed with the attachment portion 22. The upper movable cover portion 23 includes an upper wall portion 23a directly connected to the upper end of the rear extension portion 22b by a thin hinge portion 25, a front surface portion 23b extending downward from the front surface side of the upper wall portion 23a, and an upper wall portion 23a. And a side surface portion 23c that is formed at a side end portion of the front surface portion 23b and constitutes a side surface portion of the entire bottom cap 21. Further, an upper outlet 23d that is recessed in a semicircular shape from below is formed at the lower end of the front surface portion 23b, in other words, at the lower end of the wall portion constituting the outer surface on the indoor side.

  The lower movable cover part 24 is connected to the lower end of the rear extension part 22b by a thin hinge part 26 (see FIG. 4B), and is movable with respect to the attachment part 22, more specifically in the left-right direction (bottom rail). 2, and is integrally formed with respect to the attachment portion 22. The lower movable cover portion 24 extends upward from the lower wall portion 24a (see FIG. 4B) directly connected to the lower end of the rear extension portion 22b by the thin-walled hinge portion 26, and from the front side of the lower wall portion 24a. And a front surface portion 24b. Further, the upper end of the front surface portion 24b, in other words, the upper end of the wall portion constituting the outer surface on the indoor side, is recessed in a semicircular shape from above so as to form a circular outlet with the upper outlet 23d. A lower outlet 24c is formed.

  Further, the front surface portions 23b and 24b of the upper movable cover portion 23 and the lower movable cover portion 24 are fitted with the fitting convex portions 22d when the rotation state is closed (see FIG. 4A). A fitting groove 27 (in FIG. 4B, only the fitting groove 27 of the lower movable cover portion 24 is shown) is formed.

  The one end portion 5a of the operation cord 5 has an outlet port (an upper outlet port 23d and a lower outlet port) in which at least one of the upper movable cover portion 23 and the lower movable cover portion 24 is in an open state. 24c). Then, the one end portion 5a of the operation cord 5 is fitted with the fitting convex portion 22d with both the upper movable cover portion 23 and the lower movable cover portion 24 in the closed state (see FIG. 4A). By being fitted into the groove 27, the bottom cap 21 is held.

  Here, when the fitting convex portion 22d and the fitting groove 27 are applied with a preset force that greatly exceeds the force applied to the operation cord 5 during normal operation, the fitting is released, and the operation code 5 One end portion 5a is formed as a free end separated from the bottom cap 21 (bottom rail 2). At this time, depending on the direction of the force applied to the operation cord 5, at least one of the upper movable cover portion 23 and the lower movable cover portion 24 is in an open state (see FIG. 4B).

Next, the operation of the above-described third embodiment will be described.
When one end 5a of the operation cord 5 is held by the bottom cap 21 (see FIG. 4A) and the operation cord 5 is pulled down to perform a normal operation, together with the bottom rail 2 (bottom cap 21) One end portion 5a of the operation cord 5 rises.

  Further, when a preset force is applied to the operation cord 5 that greatly exceeds the force applied during normal operation, the fitting is released and at least one of the upper movable cover portion 23 and the lower movable cover portion 24 is turned. The moving state is an open state, and one end portion 5a of the operation cord 5 becomes a free end separated from the bottom cap 21 (bottom rail 2).

Next, characteristic effects of the third embodiment will be described below.
(1) When the operation cord 5 is pulled down and a normal operation is performed, the one end portion 5a of the operation cord 5 rises together with the bottom rail 2 (bottom cap 21). It is prevented that the aesthetic appearance is impaired by reaching the surface.

  Further, when a preset force is applied to the operation cord 5 so as to greatly exceed the force applied during normal operation, the fitting is released and the one end 5a of the operation cord 5 is removed from the bottom cap 21 (bottom rail 2). Since the free ends are separated from each other, for example, the safety of the occupant can be ensured and the damage to the mechanism can be prevented. That is, the bottom cap 21 has a fail-safe function.

  And compared with what provides the safety joint which consists of two components in the middle of an operation code, the number of parts of a horizontal blind (sunlight shielding device) can be reduced, for example. Further, the aesthetic appearance can be improved as compared with a case where a safety joint is provided in the middle of the operation cord. Furthermore, even if the one end portion 5a of the operation cord 5 becomes a free end, the upper convex cover portion 23 and the lower movable cover portion 24 are again turned in the closed state (see FIG. 4A), and the fitting projection By fitting the portion 22d in the fitting groove 27, the operation cord 5 can be easily returned to the state where the one end portion 5a is held.

  (2) Since the upper movable cover portion 23 and the lower movable cover portion 24 as movable portions are integrally formed with the attachment portion 22, the number of parts is further reduced as compared with the case where they are formed separately. be able to.

  (3) Since the outlet port (the upper outlet port 23d and the lower outlet port 24c) through which the retained operation cord 5 is led out is provided on the front surface (23b, 24b) of the bottom cap 21, the operation cord 5 For example, it is possible to suppress interference with the window frame as in the case where the outlet is provided on the side surface and the operation cord protrudes from the side surface to the window frame side.

  (4) The movable part includes an upper movable cover part 23 that is provided to be pivotable upward and opens and closes, and a lower movable cover part 24 that is pivotally provided below the upper movable cover part 23 and opens and closes. . Therefore, regardless of whether the direction of the force applied to the operation cord 5 is upward or downward, the rotational state of at least one of the upper movable cover portion 23 and the lower movable cover portion 24 is opened, and the operation code 5 The one end portion 5a becomes a free end separated from the bottom cap 21, and for example, the safety of a resident can be ensured or the mechanism can be prevented from being damaged.

(Fourth embodiment)
Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG.
A bottom cap 31 shown in FIGS. 5 (a) and 5 (b) includes an attachment portion 32 that is attached (externally fitted) to the end portion of the bottom rail 2, and a movable portion that can be fitted to the attachment portion 32. The lower movable cover part 33 is provided.

  The attachment portion 32 is made of a resin material, and includes a substantially rectangular tubular portion 32a that can be attached by being externally fitted to the end portion of the bottom rail 2, and the tubular portion 32a (from the bottom rail 2). And an upper cover portion 32b extending in the longitudinal direction. As shown in FIG. 5B, an opening 32c is formed below the upper cover portion 32b. In addition, an upper outlet 32e that is notched in communication with the opening 32c is formed in the front surface portion 32d of the upper cover portion 32b, in other words, in the wall portion constituting the outer surface on the indoor side. Further, the rear surface portion 32f (see FIG. 5B) of the upper cover portion 32b, in other words, the wall portion constituting the outer surface of the outdoor side is provided with an upper rear port 32g cut out in communication with the opening portion 32c. Is formed. The upper rear port 32g is formed in the same shape as the upper outlet port 32e, and the upper outlet port 32e when the bottom cap 31 is attached to one end of the bottom rail 2 and the other end. The relationship with is reversed. Further, as shown in FIG. 5B, a holding wall 32h extending toward the opening 32c is formed in the vicinity of each of the upper outlet 32e and the upper rear port 32g in the upper cover 32b. ing. Further, in the upper cover portion 32b, there are fitting grooves 34 (in FIG. 5B) in the communication portion between the opening portion 32c and the upper outlet port 32e and in the communication portion between the opening portion and the upper rear port 32g. , Only the fitting groove 34 of the communication portion between the opening 32c and the upper outlet 32e is shown).

  The lower movable cover portion 33 is connected to the lower end of the cylindrical portion 32a by the thin hinge portion 35 and is movable with respect to the attachment portion 32. Specifically, the lower movable cover portion 33 is rotatable about the axis along the front-rear direction. And is integrally formed with the attachment portion 32. The lower movable cover portion 33 is formed in a shape that substantially closes the opening portion 32c when the rotation state is the closed state (see FIG. 5A). Further, the lower movable cover portion 33 is provided with a projecting portion 33a projecting so as to constitute a lead-out port together with the upper lead-out port 32e in a closed state (see FIG. 5A), and a rotating portion. In the closed state (see FIG. 5A), a projecting portion 33b is formed so as to project with the upper rear port 32g so as to form a rear port. Further, the projecting portions 33a and 33b are formed so that one end portion of the operation cord 5 can be clamped by the clamping wall 32h when the rotation state is closed (see FIG. 5A). In the present embodiment, the clamping wall 32h and the projecting portions 33a and 33b constitute a clamping portion. Further, the protruding portions 33a and 33b are fitted with fitting protrusions 33c (see FIG. 5 (b)) fitted into the fitting grooves 34 when the rotation state is closed (see FIG. 5 (a)). Is formed.

  The one end portion 5a of the operation cord 5 is the upper outlet port 32e or the upper rear port 32g when the lower movable cover portion 33 is in the open state (see FIG. 5B). Then, it arrange | positions so that the inside of the upper side cover part 32b may be crossed while arrange | positioning at the upper side outlet 32e. The one end portion 5a of the operation cord 5 has the lower movable cover portion 33 turned in a closed state (see FIG. 5A), and the fitting convex portion 33c is fitted in the fitting groove 34. At the same time, it is held by the bottom cap 31 by being held between the holding wall 32h and the projecting portions 33a and 33b. The one end portion 5a of the operation cord 5 may not be sandwiched between the sandwiching wall 32h and the projecting portions 33a and 33b. For example, the bottom end cap is sandwiched between the sandwiching wall 32h and the one projecting portion 33a. 31 may be held.

  Here, when a preset force that greatly exceeds the force applied to the operation cord 5 during normal operation is applied to the fitting convex portion 33c and the fitting groove 34, the fitting is released and the lower movable cover is released. The rotating state of the portion 33 is an open state (see FIG. 5B), and the one end portion 5a of the operation cord 5 is formed to be a free end separated from the bottom cap 31 (bottom rail 2). Note that the bottom cap 31 of the present embodiment can be similarly attached to either the left or right end of the bottom rail 2 because the upper outlet 32e and the upper rear port 32g are formed. Therefore, even when the operation cord 5 is held on either the left or right side of the bottom rail 2, the product number can be handled by one bottom cap 31. In addition, although such sharing cannot be performed, the configuration may be changed so that the upper rear port 32g is not formed.

Next, the operation of the above-described fourth embodiment will be described.
When one end 5a of the operation cord 5 is held by the bottom cap 31 (see FIG. 5A) and the operation cord 5 is pulled downward to perform a normal operation, the bottom rail 2 (bottom cap 31) is used together. One end portion 5a of the operation cord 5 rises.

  Further, when a preset force is applied to the operation cord 5 so as to greatly exceed the force applied during normal operation, the fitting is released and the rotating state of the lower movable cover 33 is opened (FIG. 5 ( b)), and the one end portion 5a of the operation cord 5 becomes a free end separated from the bottom cap 31 (bottom rail 2).

Next, the characteristic effects of the fourth embodiment will be described below.
(1) When the operation cord 5 is pulled down and a normal operation is performed, the one end portion 5a of the operation cord 5 rises together with the bottom rail 2 (bottom cap 31). It is prevented that the aesthetic appearance is impaired by reaching the surface.

  When a preset force is applied to the operation cord 5 that greatly exceeds the force applied during normal operation, the fitting is released and the one end 5a of the operation cord 5 is removed from the bottom cap 31 (bottom rail 2). Since the free ends are separated from each other, for example, the safety of the occupant can be ensured and the damage to the mechanism can be prevented. That is, the bottom cap 31 has a fail-safe function.

  And compared with what provides the safety joint which consists of two components in the middle of an operation code, the number of parts of a horizontal blind (sunlight shielding device) can be reduced, for example. Further, the aesthetic appearance can be improved as compared with a case where a safety joint is provided in the middle of the operation cord. Furthermore, even if the one end portion 5a of the operation cord 5 becomes a free end, the rotation state of the lower movable cover portion 33 is closed again (see FIG. 5A), and the fitting convex portion 33c is fitted into the fitting groove. 34 and the holding wall 32h and the projecting portions 33a and 33b hold the one end portion 5a of the operation cord 5 so that the end portion 5a of the operation cord 5 can be easily returned to the held state. it can.

(2) Since the lower movable cover portion 33 as the movable portion is integrally formed with the attachment portion 32, the number of parts can be further reduced as compared with the case where it is formed separately.
(3) Since the lead-out port (upper lead-out port 32e and projecting portion 33a) through which the retained operation cord 5 is led out is provided on the front surface portion (32d) of the bottom cap 31, the operation cord 5 is connected to the front surface portion (32d). ) To the indoor side, for example, interference with the window frame can be suppressed as in the case where the outlet port is provided on the side surface portion and the operation cord protrudes from the side surface portion to the window frame side.

  (4) Since the attachment portion 32 and the lower movable cover portion 33 are formed with a holding portion (a holding wall 32h and projecting portions 33a and 33b) for holding the one end portion 5a of the operation cord 5, the operation portion 5 It is not necessary to make the knot ball 5b (see FIG. 2) at the one end portion 5a of the cord 5.

  (5) Since the attachment portion 32 is provided with an upper cover portion 32b, the movable portion is provided as a lower movable cover portion 33 that is rotatably provided below the upper cover portion 32b and opens and closes. The aesthetics seen from become better.

(Fifth embodiment)
Hereinafter, a fifth embodiment of the present invention will be described with reference to FIG.
A bottom cap 41 shown in FIGS. 6A to 6C is attached to an attachment member 42 as an attachment portion attached (internally fitted) to the end portion of the bottom rail 2, and the attachment member 42. And a fitting member 43 as a movable part that can be fitted.

  The attachment member 42 is made of a resin material, and is formed in a substantially square cylindrical shape that can be attached by being fitted into the end portion of the bottom rail 2. The front surface 42a of the attachment member 42, in other words, the side end portion (the right end portion in FIG. 6B) of the wall portion constituting the outer surface on the indoor side, the front notch groove 42b constituting the outlet. Is formed. In this embodiment, the front surface notch is also formed on the rear surface portion 42c of the attachment member 42, in other words, on the side end portion (the right end portion in FIG. 6B) of the wall portion constituting the outer surface of the outdoor side. A rear notch groove 42d having the same shape as the groove 42b is formed, and when the direction of attaching the bottom cap 41 is changed, the relationship between the rear notch groove 42d and the front notch groove 42b is reversed. Further, as shown in FIG. 6A, the upper surface portion 42e and the lower surface portion 42f of the attachment member 42 are formed with fitting convex portions 42g protruding in a hemispherical shape on the inner sides facing each other.

  The fitting member 43 is made of a resin material, substantially covers the side end opening of the attachment member 42, and forms an outer surface of the entire bottom cap 41, and an inner side from the outer portion 43a (in FIG. 6B). And an insertion portion 43b that can be inserted into the attachment member 42.

  As shown in FIG. 6A, the insertion portion 43b is formed with a receiving portion 43c whose upper side is open. In addition, a communication hole 43d is formed on the inner side of the insertion portion 43b to communicate the outside with the housing portion 43c. In addition, a groove 43f extending along the bulging direction of the insertion portion 43b (the left-right direction in FIG. 6B) is formed in the front surface portion 43e of the insertion portion 43b. Further, the insertion portion 43b has a fitting recess 43g (on the upper side in FIG. 6A) into which the fitting projection 42g is fitted in a state where the insertion portion 43b is inserted into the attachment member 42. Only the fitting recess 43g is shown).

  Then, the one end portion 5a of the operation cord 5 is inserted into the accommodating portion 43c through the communication hole 43d, and the knot ball 5b larger than the communication hole 43d is formed to prevent the fitting cord 43 from coming off. Is held in. Then, as shown in FIG. 6B, in the state where the fitting member 43 is fitted to the attachment member 42, the operation cord 5 passes through the groove 43f from the front notch groove 42b to the outside (indoor side). ).

  Here, when a preset force that greatly exceeds the force applied to the operation cord 5 during normal operation is applied to the fitting convex portion 42g and the fitting concave portion 43g, as shown in FIG. The fitting is released and the one end portion 5a of the operation cord 5 is formed to be a free end separated from the attachment member 42 (bottom rail 2) together with the fitting member 43. Note that the bottom cap 41 of the present embodiment can be attached to the left and right ends of the bottom rail 2 in the same manner because the front notch groove 42b and the rear notch groove 42d are formed. . Therefore, when the operation cord 5 is held on either the left or right side of the bottom rail 2, the product number can be handled by one bottom cap 41. Moreover, you may change to the structure in which the said rear surface notch groove 42d is not formed.

Next, the operation of the fifth embodiment will be described.
When one end portion 5a of the operation cord 5 is held by the fitting member 43 and the fitting member 43 is fitted to the attachment member 42, the operation cord 5 is pulled down to perform a normal operation. 2 (bottom cap 41) and the one end portion 5a of the operation cord 5 rise.

  In addition, when the one end 5a of the operation cord 5 is held by the fitting member 43 and the fitting member 43 is fitted to the attachment member 42, the force applied to the operation cord 5 during normal operation is greatly exceeded. When a preset force is applied, the fitting is released, and the one end portion 5a of the operation cord 5 becomes a free end separated from the attachment member 42 (bottom rail 2) together with the fitting member 43.

Next, the characteristic effects of the fifth embodiment will be described below.
(1) When the operation cord 5 is pulled down and a normal operation is performed, the one end portion 5a of the operation cord 5 rises together with the bottom rail 2 (bottom cap 41). It is prevented that the aesthetic appearance is impaired by reaching the surface.

  When a preset force is applied to the operation cord 5 that greatly exceeds the force applied during normal operation, the fitting is released and one end portion 5a of the operation cord 5 is released as shown in FIG. Since it becomes the free end separated from the attachment member 42 (bottom rail 2) together with the fitting member 43, for example, the safety of the occupant can be ensured and the damage to the mechanism can be prevented. That is, the bottom cap 41 has a fail-safe function.

  And compared with what provides the safety joint which consists of two components in the middle of an operation code, the number of parts of a horizontal blind (sunlight shielding device) can be reduced, for example. Further, the aesthetic appearance can be improved as compared with a case where a safety joint is provided in the middle of the operation cord. Furthermore, even if the one end portion 5a of the operation cord 5 becomes a free end, the fitting member 43 is again fitted to the attachment member 42, so that the one end portion 5a of the operation cord 5 is easily held. Can be restored.

  (2) Since the fitting member 43 as the movable portion is formed separately from the attachment member 42 as the attachment portion and the one end portion 5a of the operation cord 5 is held, the fitting member 43 is fitted with the attachment member 42. Even when the fitting of the joint member 43 is released, the fitting member 43 is prevented from being lost. That is, if the fitting member is formed separately from the attachment member and the one end portion 5a of the operation cord 5 is not held, the fitting member falls and rolls when the fitting is released. Can be lost, but this can be avoided.

  (3) Since the front cut-out groove 42b as a lead-out port through which the held operation cord 5 is led out is provided in the front portion 43e of the fitting member 43 (bottom cap 1), the operation cord 5 extends from the front portion 43e. Projecting indoors, for example, it is possible to suppress interference with the window frame as in the case where the outlet is provided on the side surface and the operation cord projects from the side surface to the window frame.

Each of the above embodiments may be modified as follows.
-Each fitting of each said embodiment may be changed into the fitting by press fit.
-Although the member which comprises each bottom cap 1,11,21,31,41 of each said embodiment consists of resin materials, respectively, it is not limited to this, For example, the attachment member 3 of 1st embodiment Etc. may be composed of other materials (for example, metal).

  In each of the above embodiments, the outlet through which the operation cord 5 is led out is provided on the front surface of the bottom cap 1, 11, 21, 31, 41. However, the present invention is not limited to this. You may change into the structure provided in the side part of the cap.

-In said 1st embodiment, although the attachment member 3 shall be externally fitted by the edge part of the bottom rail 2, it is not limited to this, In what is internally fitted by the edge part of the bottom rail 2 It may be changed.
Another example will be described with reference to FIG. As shown in FIG. 7, the bottom cap 51 includes a cylindrical attachment portion 52 that is attached (externally fitted) to the end portion of the bottom rail 2. The bottom cap 51 is formed with an accommodation recess 53 that opens downward, and an elastic wall 54 that extends downward is formed at the bottom of the accommodation recess 53 (the lower surface of the upper wall). The elastic wall 54 is formed long along the front-rear direction and has flexibility so as to fall down in the left-right direction (longitudinal direction of the bottom rail 2). A plurality of protrusions 55 extending in the front-rear direction are provided on the inner wall surface of the elastic wall 54 and the housing recess 53 facing the elastic wall 54. The interval between the protruding portions 55 facing each other is set to be smaller than the diameter of the operation cord 5. In addition, openings 58 and 59 are formed in the front surface portion 56 and the rear surface portion 57 of the bottom cap 51 so as to communicate the outside and the inside of the housing recess 53, respectively.

  The one end portion 5a of the operation cord 5 has the opening 58 or the opening 59 in a state where the elastic wall 54 is bent in a direction in which the opposing protruding portion 55 is separated (an external force is applied by a jig or the like). The elastic wall 54 is returned to bend (the external force is made non-input) so as to be sandwiched between the protrusions 55 and held by the bottom cap 51.

  Here, when the elastic wall 54 and the protrusion 55 are applied with a preset force that greatly exceeds the force applied to the operation cord 5 during normal operation, the one end portion 5a of the operation cord 5 is connected to the openings 58, 59 and It is formed so as to be a free end that is spaced from the bottom cap 51 (bottom rail 2) through the protruding portions 55 facing each other.

  This also prevents the one end portion 5a of the operation cord 5 from reaching the floor surface and impairing the beauty. In addition, for example, it is possible to ensure the safety of residents and prevent damage to the mechanism. That is, the bottom cap 51 has a fail-safe function. And compared with what provides the safety joint which consists of two components in the middle of an operation code, the number of parts of a horizontal blind (sunlight shielding device) can be reduced, for example. Further, the aesthetic appearance can be improved as compared with a case where a safety joint is provided in the middle of the operation cord.

  Another example will be described with reference to FIG. As shown in FIGS. 8 (a) and 8 (b), the bottom cap 61 has a cylindrical attachment member 62 attached (externally fitted) to the end portion of the bottom rail 2, and the attachment member 62. And a slidable slider member 63.

  The attachment member 62 includes a bottomed cylindrical part 62a having a substantially bottomed square cylindrical shape that can be attached by being fitted on the end of the bottom rail 2, and a bottom part 62b of the bottomed cylindrical part 62a. It has the accommodation cylinder part 62c extended in the opposite direction to the cylinder part of the bottom cylindrical part 62a. In addition, an opening 62d is formed in the front surface portion and the rear surface portion of the housing cylinder portion 62c to communicate the outside and the inside of the housing tube portion 62c, respectively.

  The slider member 63 is formed in a substantially quadrangular prism shape that can be inserted into the housing cylinder portion 62c, is provided to be slidable along the insertion direction in the housing cylinder portion 62c, and is provided on the bottom portion 62b via a spring 64. Are connected. Further, the slider member 63 is formed with an insertion hole 63a penetrating in the front-rear direction. The length of the spring 64 is set so that the insertion hole 63a is displaced to the outside (right side in FIG. 8) with respect to the opening 62d in a state where no external force is applied. Yes.

  The one end portion 5a of the operation cord 5 is in a state in which the slider member 63 is pushed into the inner side of the housing cylinder portion 62c against the elastic force of the spring 64 (external force is applied by a finger or the like). It arrange | positions so that it may pass through the opening 62d and the insertion hole 63a. And by making the external force of the slider member 63 non-input, it is clamped by the opening 62d and the insertion hole 63a by the elastic force of the spring 64, and is held by the bottom cap 61.

  Here, when the opening 62d, the insertion hole 63a, and the spring 64 are applied with a preset force that greatly exceeds the force applied to the operation cord 5 during normal operation, the one end portion 5a of the operation cord 5 is opened to the opening 62d. And it is formed so that it may become a free end separated from the bottom cap 61 (bottom rail 2) through the insertion hole 63a.

  This also prevents the one end portion 5a of the operation cord 5 from reaching the floor surface and impairing the beauty. In addition, for example, it is possible to ensure the safety of residents and prevent damage to the mechanism. That is, the bottom cap 61 has a fail-safe function. Further, the aesthetic appearance can be improved as compared with a case where a safety joint is provided in the middle of the operation cord.

  2 ... Bottom rail, 3, 42 ... Attachment member (attachment part), 3a ... Fitting hole, 4, 43 ... Fitting member (movable part), 4a ... Insertion shaft part, 4c, 12c, 23b, 24b , 32d, 42a ... front part, 4d ... outlet, 5 ... operation code, 5a ... one end part, 5b ... knotted ball, 12, 22, 32 ... attachment part, 12b, 32b ... upper cover part, 12d, 23d, 32e: Upper outlet port constituting a part of the outlet port, 12f, 22d, 33c, 42g: fitting convex portion, 13, 24, 33 ... lower movable cover portion (movable portion), 13a, 24c: outlet port Lower outlet port constituting part, 13b, 27, 34 ... fitting groove, 23 ... upper movable cover part (movable part), 32h ... clamping wall constituting part of the clamping part, 33a ... outlet port and clamping Projecting part constituting part of the part, 33b ... Projecting part constituting part of the clamping part, 42b ... Surface cutout groove (outlet), 43 b ... insertion portion, 43c ... receiving portion, 43 g ... fitting recess.

Claims (10)

A bottom cap attached to the end of the bottom rail of the solar shading device and capable of holding one end of the operation cord,
An attachment portion attached to the bottom rail, and a movable portion that can be fitted to the attachment portion,
The movable part is molded separately from the attachment part, and one end of the operation cord is held,
One end portion of the operation cord is held in a state where the movable portion is fitted to the attachment portion, and when a predetermined force is applied to the operation cord holding the one end portion, the attachment portion and the The fitting of the movable part is released and one end of the operation cord becomes a free end separated from the attachment part,
The bottom cap characterized in that the movable portion deviates from the attachment portion in a direction different from a direction in which the operation cord is led out from the bottom cap. The bottom cap according to claim 1,
A fitting hole is formed in one of the attachment part and the movable part,
The other part of the attachment part and the movable part is held in the attachment part by being fitted into the fitting hole, and a predetermined force is applied from the state. A bottom cap characterized in that a fitting insertion shaft portion is formed in which the fitting portion is released and the movable portion is separated from the attachment portion. The bottom cap according to claim 1,
The movable part has an insertion part that can be inserted into the attachment part,
The bottom cap according to claim 1, wherein the insertion portion is formed with an accommodation portion capable of accommodating a knot ball formed at one end portion of the operation cord. In the bottom cap according to claim 3,
A fitting convex portion is formed on one of the attachment portion and the insertion portion,
When the fitting projection is fitted to the other of the attachment part and the insertion part, the movable part is held on the attachment part, and a preset force is applied from that state. A bottom cap formed with a fitting recess in which the fitting is released and the movable part is separated from the attachment part. A bottom cap attached to the end of the bottom rail of the solar shading device and capable of holding one end of the operation cord,
An attachment portion attached to the bottom rail, and a movable portion that can be fitted to the attachment portion,
The movable part is integrally formed with the attachment part,
The movable part has a movable cover part that is rotatably provided in any one of the vertical directions and opens and closes.
One end portion of the operation cord is held in a state where the movable portion is fitted to the attachment portion, and when a predetermined force is applied to the operation cord holding the one end portion, the attachment portion and the Ri Do a free end to which one end portion of the operation code is separated from the mounting portion is fitted in the movable part is released,
The attachment portion and the movable portion are formed with a holding portion for holding one end portion of the operation cord in a state where the movable portion is fitted to the attachment portion,
The sandwiching portion includes a protruding portion on one of the attachment portion and the movable portion,
One of the attachment part and the movable part is provided with a holding wall for holding the operation cord with the projecting part.
A bottom cap characterized by that. The bottom cap according to claim 5,
The attachment portion is provided with an upper cover portion,
The bottom cap, wherein the movable portion is a lower movable cover portion that is rotatably provided below the upper cover portion and opens and closes.   A bottom cap attached to the end of the bottom rail of the solar shading device and capable of holding one end of the operation cord,
  An attachment portion attached to the bottom rail, and a movable portion that can be fitted to the attachment portion,
  The movable part is integrally formed with the attachment part,
  The movable portion includes an upper movable cover portion that is provided so as to be pivotable upward and is opened and closed, and a lower movable cover portion that is pivotally provided below the upper movable cover portion and is opened and closed.
  One end portion of the operation cord is held in a state where the movable portion is fitted to the attachment portion, and when a predetermined force is applied to the operation cord holding the one end portion, the attachment portion and the A bottom cap, wherein the movable portion is disengaged and one end portion of the operation cord becomes a free end separated from the attachment portion. The bottom cap according to any one of claims 5 to 7,
A fitting groove is formed in one of the attachment part and the movable part,
The other part of the attachment part and the movable part is fitted into the fitting groove to close the movable part, and when a preset force is applied from that state, the fitting is released. A bottom cap characterized in that a fitting convex portion is formed to open the movable portion.   The bottom cap according to any one of claims 1 to 8,
  A bottom cap, wherein a lead-out port through which the held operation code is led out is provided on the front surface portion.   The bottom cap according to any one of claims 1 to 9,
  A bottom cap characterized in that it can be attached to either end of both ends of the bottom rail.