JP5576780B2 - Roll screen - Google Patents

Description

  The present invention relates to a roll screen that can be used twice.

  Conventionally, what was described in patent document 1 is known as this kind of roll screen. According to this, two winding pipes are arranged up and down between a pair of side plates, and one end of a screen is connected to each winding pipe so that winding and unwinding are possible. And by raising and lowering the screens connected to the respective winding pipes individually, if only one screen is lowered, it can be brought into a non-overlapping state, and if both screens are lowered, It can be made into the state which overlapped twice, and can be set as the roll screen which was rich in change.

JP 2002-371774 A

  However, in the conventional roll screen, the two winding pipes are arranged vertically between the pair of side plates and are slightly shifted in the front-rear direction, so the structure of the upper mechanism is large. There is a problem of becoming. In particular, since the two winding pipes are arranged one above the other, there is a problem that when the entire screen is wound, the opening height of the opening portion where the roll screen is installed becomes small.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a roll screen that enables double use of the screen without increasing the size of the mechanism.

In order to achieve the above-described object, according to the first aspect of the present invention, both ends of the winding pipe can be rotatably supported by a pair of fixing members, and one end of the screen can be wound and unwound by the winding pipe. In the roll screen connected to
A held portion is provided at the other end of the screen, and the held portion can be detachably held by a holding portion provided in the vicinity of the take-up pipe. In the holding state where the holding portion holds the held portion. Is characterized in that the screen can be lifted and lowered in a doubled state, and the screen can be lifted and lowered in a non-overlapping state when the holding part releases the held part.

  The invention according to claim 2 is the roll screen according to claim 1, wherein the holding portion is a movable locking portion that moves between a holding position for holding the held portion and a release position for releasing the holding, A switching portion that switches the position of the locking portion between the holding position and the release position, and the switching portion switches the locking portion between the holding position and the release position each time the held portion comes into contact with the holding portion. It can be switched between.

  According to a third aspect of the present invention, in the roll screen according to the first aspect, the holding portion has a movable locking portion that moves between a holding position for holding the held portion and a release position for releasing the holding. The locking portion is normally biased toward the holding position by the biasing means, and is moved to the release position by the operation of the operation means.

  According to a fourth aspect of the present invention, in the roll screen according to any one of the first to third aspects, the screen includes a light shielding portion and a non-light shielding portion arranged continuously in the ascending / descending direction. And the non-light-shielding part can be moved up and down in a double overlapped state.

  By making the held portion provided at the other end of the screen detachable from the holding portion in the vicinity of the take-up pipe, the screen can be switched between a doubled state and a non-overlapped state. In addition, even though the screen can be doubled, only one take-up pipe needs to be provided, so the structure of the mechanism becomes compact and the whole screen is taken up. A large open height of the opening portion where the roll screen is installed can be secured.

  By the switching operation of the switching unit and the operation of the operation means, the holding unit can be moved and the holding unit can be held and released.

  Further, by arranging the screen so that the light-shielding portion and the non-light-shielding portion are continuously arranged in the ascending / descending direction, the light-shielding portion and the non-light-shielding portion overlap each other when the holding portion holds the held portion. The entire screen is light-shielded, and when the holding part is not holding the held part, only the non-light-shielding part can be raised and lowered. It becomes a light-shielding state, and light can be taken in.

In the roll screen which concerns on the 1st Embodiment of this invention, it is a front view showing the state in the middle of raising / lowering of the screen in the non-holding state which the holding | maintenance part cancel | released holding | maintenance of the to-be-held part. It is a front view showing the state which lowered | hung the screen in the non-holding state which the holding | maintenance part cancel | released the hold | maintained part to the minimum stop position. FIG. 3 is a rear view of FIG. 2. It is a front view showing the state in the middle of raising / lowering of the screen in the holding state in which the holding part hold | maintained the to-be-held part. It is a front view showing the state which lowered | hung the screen in the holding state in which the holding part hold | maintained the to-be-held part to the minimum stop position. FIG. 6 is a rear view of FIG. 5. (A) is a sectional side view showing a state in the middle of ascending of the screen in a non-holding state in which the holding portion releases the holding portion, and (b) shows a state immediately before the holding portion pushes up the holding portion. It is a sectional side view, (c) is a sectional side view showing the state where the pushed-up holding part is locked to the latch, (d) is the screen lowered in the holding state where the held part is held by the holding part It is a sectional side view showing the state which is operating in the direction. (A) is a sectional side view showing a state in which the screen is operated in the upward direction from the state of FIG. 7 (d), (b) is a sectional side view showing a state in which the holding portion pushes the latch, (c) ) Is a side sectional view showing a non-holding state in which the holding portion is unlocked and the holding portion has released the holding portion, and (d) is a non-holding state in which the holding portion has released the holding portion. It is a sectional side view showing the state where the screen is lowered in the state. (A) is sectional drawing showing the state of the latch in a non-holding state, (b) is sectional drawing showing the state of the latch in a holding state. It is a front view of the roll screen which concerns on 2nd Embodiment, Comprising: The holding | maintenance part represents the non-holding state which cancelled | released holding | maintenance of the to-be-held part. It is a front view of the roll screen which concerns on 2nd Embodiment, Comprising: The holding | maintenance part represents the holding state which hold | maintained the to-be-held part. (A) is a sectional side view showing a non-holding state in which the holding unit releases the held portion in the second embodiment, and (b) is a side cross-sectional view showing a holding state in which the holding unit holds the held portion. It is a figure, (c) is a sectional side view showing the state which has lowered | hung the screen in the state of (b). It is a sectional side view of the roll screen which concerns on 3rd Embodiment, Comprising: (a) represents the non-holding state which the holding | maintenance part cancel | released holding | maintenance of a to-be-held part, (b) has a holding part hold | maintained to-be-held part. Represents the held state.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
A roll screen according to a first embodiment of the present invention will be described with reference to FIGS.

  In the figure, the roll screen 10 has a pair of side plates (fixing members) 14 attached to both ends of a set frame 12 attached to a fixing part such as a window frame by a bracket 11. Both ends of the winding pipe 16 are rotatably supported. The winding pipe 16 can be rotationally driven by a pulley 17 provided on one side plate 14, and the pulley 17 is operated to rotate by an operation chain 19 wound around the pulley 17.

  One end of a screen 18 is connected to the winding pipe 16 so that the screen 18 can be wound and unwound, and the other end of the screen 18 is wound around a rolling bar 22 provided on the weight bar 20 and then held. It is connected to (held part) 24. The holding bar 24 cannot pass between the turning bar 22 and the weight bar body.

  The screen 18 includes an opaque cloth 18a that constitutes a light shielding part and a see-through cloth 18b that constitutes a non-light shielding part, which are continuously arranged in the ascending / descending direction. The lengths of the opaque fabric 18a and the see-through fabric 18b can be set to an arbitrary ratio, but are preferably equal to each other and substantially equal to the set height dimension of the roll screen 10. One end of the opaque fabric 18a is connected to the winding pipe 16, one end of the see-through fabric 18b is connected to the holding bar 24, and the other ends of the opaque fabric 18a and the see-through fabric 18b are connected to each other.

  A groove 26 is formed in the weight bar 20 over the entire length in the longitudinal direction (see FIG. 3), and a connecting portion 28a formed in the support member 28 is inserted into the groove 26 (see FIG. 7). 28 is attached to the weight bar 20. The support member 28 can support the holding bar 24 lowered to the position of the weight bar 20.

  A plurality of holding portions 30 capable of detachably holding the holding bar 24 are attached to the set frame 12 at appropriate intervals. The holding unit 30 includes a holding frame 36 fixed to the set frame 12, a movable locking unit 32 that moves between a holding position that holds the holding bar 24 and a release position that releases the holding, and a locking unit And a latch (switching unit) 34 for switching the position 32 between the holding position and the release position.

  As shown in FIGS. 7 and 8, the holding frame 36 includes a fitting portion 36a fitted on the upper portion of the set frame 12, and a pair of protruding pieces 36b protruding rearward from both rear end portions of the fitting portion 36a. The engaging portion 32 is swingably supported by the pair of protruding pieces 36b.

  The locking portion 32 has three arms, namely, an engaging arm 32 a, a pressing arm 32 b, and a releasing arm 32 c that swing together from the swing center A, and the engaging arm 32 a has a shape of the holding bar 24. The holding bar 24 can be held. Further, the pressing arm 32b has a distal end portion bent in an L shape in the direction of the latch 34, and a narrowed portion 32d is formed at the distal end portion as shown in FIG. When the pressing arm 32b swings about the swing center A, the tip can press the latch 34 and the constricted portion 32d is sandwiched by the latch 34 as described later. The release arm 32c is connected to the other end of a spring member 38, one end of which is connected to the projecting piece 36b. The spring member 38 biases the release arm 32c in a direction in which the engagement arm 32a moves away from the latch 34. ing.

  The latch 34 is provided between the pair of projecting pieces 36b of the fitting portion 36a of the holding frame 36, and as shown in FIG. 9, a housing 42 attached to the rear surface 36c of the holding frame 36, and the inside of the housing 42 And a spring member 46 disposed in the housing 42 and constantly pressing the lock member 44 in the downward direction.

  An endless guide groove 40 is formed on the inner peripheral surface of the housing 42, and an engaging recess 40 a that is recessed downward is formed at the upper end of the guide groove 40.

  The lock member 44 includes a sliding portion 44a, a swinging portion 44d that is pivotally supported at one end by the sliding portion 44a, and a pair of swingingly connected lower portions of the sliding portion 44a. And a lock arm 44f.

  An engaging terminal 44e provided at the other end of the swinging portion 44d is movably engaged with the guide groove 40, whereby the sliding portion 44a is suspended from the housing 42 and engaged. As the terminal 44e moves along the guide groove 40, the sliding portion 44a slides in the casing 42 in the up-and-down direction.

  The free ends of the pair of lock arms 44f protrude outward from the lower portion of the housing 42, and are always urged in the direction in which the free ends are separated from each other by its own elasticity or an additional elastic member (not shown). As shown in FIG. 9A, when the sliding portion 44a is lowered and the lock arm 44f sufficiently protrudes from the housing 42, the free end is separated.

  Next, the unfolded state of the screen 18 in each lifted state will be described with reference to FIGS.

  First, raising and lowering of the screen 18 in a non-holding state where the holding bar 24 is not held by the locking portion 32 will be described. In the non-holding state in which the locking portion 32 releases the holding bar 24, the release arm 32c is pulled downward by the elastic force of the spring member 38 as shown in FIG. Reference numeral 32 denotes a release position separated from the latch 34. The holding bar 24 is supported by the support member 28 and can move up and down integrally with the weight bar 20.

  In this case, the lifting / lowering operation of the screen 18 is the same as the normal screen operation. That is, when the operation chain 19 is operated and the pulley 17 is rotated in the downward direction of the screen 18, the winding pipe 16 unwinds the screen 18. Accordingly, the holding bar 24 is lowered integrally with the weight bar 20 while being supported by the support member 28. However, as shown in FIG. 1, the see-through cloth 18b is lowered because the see-through cloth 18b is connected to the holding bar 24. To do.

  Thereafter, when the operation chain 19 is operated and the pulley 17 is rotated in the downward direction of the screen 18, the winding pipe 16 unwinds the see-through cloth 18b, and the holding bar 24 is lowered to the lower limit position integrally with the weight bar 20. Then, as shown in FIGS. 2 and 3, the opening can be covered only with the see-through fabric 18b, and lighting can be achieved.

  Thus, in the non-holding state in which the holding bar 24 is released from the locking portion 32, only the see-through fabric 18b is raised and lowered.

  Next, an operation for locking the holding bar 24 to the locking portion 32 will be described.

  The operation chain 19 is operated, the pulley 17 is rotated in the upward direction of the screen 18, the screen 18 is wound around the winding pipe 16, the holding bar 24 is lifted together with the weight bar 20, and the locking portion 32 is approached. Then, as shown in FIG. 7B, the holding bar 24 comes into contact with the pressing arm 32b, and further pushes up the pressing arm 32b against the elastic force of the spring member 38 as shown in FIG. 7C. To go. As a result, the locking portion 32 swings clockwise in FIG. 7C, and the tip of the pressing arm 32b makes the lower end of the sliding portion 44a the spring member as shown by the two-dot chain line in FIG. 9A. Since it pushes up against the spring force of 46, the sliding part 44a raises. As shown in FIG. 9B, when the engagement terminal 44e moves through the guide groove 40 and reaches the engagement recess 40a, the engagement terminal 44e is engaged, whereby the lock member 44 is It is latched by 42 and movement is restrained. At this time, the lock arm 44f is pushed into the housing 42 and swings in a direction in which the interval between the lock arms 44f is narrowed. The lock arm 44f holds the constricted portion 32d of the pressing arm 32b, thereby holding the locking portion 32. At this time, the locking portion 32 swings to the position shown in FIG. 7 (d), and is positioned at a holding position where the engagement arm 32 a engages the holding bar 24.

  Next, raising and lowering of the screen 18 in a holding state in which the holding bar 24 is held by the holding unit 30 will be described.

  When the operation chain 19 is operated from the state in which the screen 18 is completely wound on the winding pipe 16 and the winding pipe 16 is rotated in the unwinding direction of the screen 18, first, the see-through fabric 18b is unwound, After all the fabric 18b is unwound, the opaque fabric 18a is unwound. At this time, since the screen 18 is folded back by the turning bar 22 and is configured to be double, both the front side and the rear side of the screen 18 are configured by the see-through fabric 18b until the screen 18 is lowered. It will be. Then, after all the see-through fabric 18b is unwound, as shown in FIG. 4, the front side of the screen 18 is an opaque fabric 18a, the lower portion is a see-through fabric 18b, and the rear side is an entire see-through fabric 18b. Thereafter, as the screen 18 is further lowered, the ratio of the opaque cloth 18a on the front side of the screen 18 increases with respect to the ratio of the see-through cloth 18b. As shown in FIG. 6, the front side is entirely opaque fabric 18a, and the rear side is entirely see-through fabric 18b.

  On the contrary, when the screen 18 is wound around the winding pipe 16 in the holding state where the holding bar 24 is held by the holding portion 30, the screen 18 is wound up from the opaque fabric 18 a connected to the winding pipe 16. The weight bar 20 rises while the proportion of the opaque fabric 18a on the front side of the sheet decreases with respect to the proportion of the see-through fabric 18b.

  Next, when releasing the holding bar 24 held by the locking portion 32, the operation chain 19 is operated to further wind the screen 18 around the winding pipe 16, as shown in FIG. Then, the weight bar 20 is raised and the support member 28 supports the holding bar 24. Then, the screen 18 is further wound up, and as shown in FIG. 8B, the holding bar 24 is raised from the engaging arm 32a and brought into contact with the pressing arm 32b, and then the holding bar 24 is further raised. Then, since the pressing arm 32b is pushed up, the tip of the pressing arm 32b pushes up the sliding portion 44a. As a result, the engagement terminal 44e moves along the guide groove 40 and rises above the engagement recess 40a, and the engagement of the engagement terminal 44e with the engagement recess 40a is released. The engagement terminal 44e descends along the guide groove 40 with the help of the spring force of the spring member 46, and the sliding portion 44 descends, and as shown in FIG. 9A, a pair of lock arms 44f. Projecting from the casing 42 and being separated from each other to release the pinching of the constricted portion 32d, the locking portion 32 is released from the lock arm 44f.

  Then, since the locking portion 32 swings counterclockwise in FIG. 8C due to the elastic force of the spring member 38 and moves to the release position indicated by the solid line in the drawing, the operation chain 19 is operated thereafter. When the screen 18 is unwound on the winding pipe 16, the holding bar 24 is lowered integrally with the weight bar 20 while being supported by the support member 28 as shown in FIG.

  As described above, by setting the holding bar 24 to the holding state or the non-holding state, the screen 18 can be switched up and down between a doubled state and a non-overlapping state. Although the screen 18 can be doubled, only one winding pipe 16 is provided, so that the structure of the mechanism including the upper winding pipe 16 becomes compact, and the screen 18 Even when all the rolls are wound up, it is possible to prevent the open height of the opening in which the roll screen 18 is installed from becoming small.

(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIGS.

  In the second embodiment, the configuration of the holding unit 30 is different from that of the first embodiment, and the other configurations are the same as those of the first embodiment. Therefore, only different configurations will be described.

  As shown in FIG. 12, the holding part 30 has a locking part 32 and a release cord 50. The locking portion 32 is omitted from the pressing arm 32b of the first embodiment, and includes only an engagement arm 32a that holds the holding bar 24 and a release arm 32c. The release arm 32c is always urged by the spring member 38 in the direction of the holding position where the engagement arm 32a engages the holding bar 24. Further, the release arm 32c has a distal end portion further than the connection portion of the spring member 38. One end of the release cord 50 is connected to the. The other end of the release cord 50 is led out above the fitting portion 36a of the holding frame 36 by a guide roller 52 (see FIG. 12) provided on the protruding piece 36b of the holding frame 36, and then shown in FIGS. As shown in the drawing, a guide roller (not shown) distributes along the set frame 12 to the vicinity of one side plate 14, and is led out of the set frame 12 through a stopper 54 provided at this portion. Drooping forward of.

  Next, operations of the holding unit 30 and the holding bar 24 in the second embodiment will be described.

  When releasing the holding of the holding bar 24 by the locking portion 32, as shown in FIG. 12A, the release cord 50 is pulled down, and the release arm 32c is resisted against the elastic force of the spring member 38 and the engagement arm 32a. Is moved to the release position for releasing the holding of the holding bar 24, and the release cord 50 is locked to the stopper 54 in this state, whereby the locking portion 32 can be maintained at the release position. In this state, the holding bar 24 is supported by the support member 28 and can be moved up and down integrally with the weight bar 20.

  Then, as shown in FIG. 10, when the screen 18 is lowered in the released state where the holding portion 30 has released the holding of the holding bar 24, only the see-through fabric 18b is lowered as in the first embodiment, and the lower limit position is reached. Even if it is lowered, the opening is covered only with the see-through fabric 18b.

  Next, when the holding bar 24 is held by the holding unit 30, first, when the operation chain 19 is operated and the pulley 17 is rotated in the upward direction of the screen 18, the screen 18 is wound around the winding pipe 16 and the weight The holding bar 24 rises together with the bar 20. After the holding bar 24 is raised to the upper limit in this way, the release cord 50 is operated to release the stopper 54, and the tension of the release cord 50 with respect to the release arm 32c is released. As a result, the release arm 32c swings in the clockwise direction in FIG. 12B by the urging force of the spring member 38, so that the engagement arm 32a swings together with the release arm 32c and holds the holding bar 24.

  Thereafter, when the operation chain 19 is operated to unwind the screen 18 from the winding pipe 16, the weight is maintained while the holding bar 24 is held in the holding portion 30 as shown in FIG. The bar 20 and the turning bar 22 descend, and the screen 18 descends while maintaining a double configuration in the front and rear. Then, as shown in FIG. 11, when the weight bar 20 is lowered to the lower limit position, as in the first embodiment, the screen 18 is entirely opaque on the front side 18a and the rear side is entirely see-through fabric 18b. Become. In this way, the same operation and effect as the first embodiment can be obtained.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG.

  In the third embodiment, the configuration of the holding unit 30 is different from those of the first and second embodiments, and other configurations are the same as those of the first and second embodiments. It shall be.

  The holding unit 30 includes a holding frame 36 and a pin 60. The protruding piece 36b of the holding frame 36 is provided at substantially the same position in the width direction as the side plate 14, and a plurality of pins 60 are provided at the lower end thereof. The plurality of pins 60 of each protruding piece 36b can be mounted on both ends of the holding bar 24, respectively. The pin 60 may be provided so as to protrude in a fixed manner from the protruding piece 36b. Alternatively, each time the holding bar 24 passes through the pin 60, the pin 60 can be retracted in the axial direction or automatically protrudes after passing. It may be provided so that it can appear and disappear.

  Next, operations of the holding unit 30 and the holding bar 24 in the third embodiment will be described.

  As shown in FIG. 13A, in the non-holding state in which the holding portion 30 releases the holding bar 24, the holding bar 24 is supported by the support member 28 as in the first and second embodiments. The weight bar 20 can be moved up and down integrally.

  Next, as shown in FIG. 13B, in order to set the holding unit 30 to hold the holding bar 24, if the pin 60 is within reach, the holding bar 24 is manually moved onto the pin 60. It is done by placing it on. The holding unit 30 is brought into the non-holding state in which the holding of the holding bar 24 is released by manually removing the holding bar 24 from the pin 60.

  Further, even when the pin 60 can be projected and retracted, the holding bar 24 is manually passed through the pin 60 in the same manner as described above, and then the pin 60 is protruded to place the holding bar 24 on the pin 60. The holding bar 24 may be manually passed through the pin 60 to release the holding bar 24. Alternatively, as in the first and second embodiments, the operation chain 19 is operated so that the screen 18 is taken up by the take-up pipe 16, and the holding bar 24 rises so as to pass the pin 60 together with the weight bar 20. The holding bar 24 after the lifting operation is stopped may be placed on the pin 60 protruding after the holding bar 24 has passed.

  In the above example, the screen 18 is composed of the opaque fabric 18a that is a light shielding portion and the see-through fabric 18b that is a non-light shielding portion. However, the present invention is not limited to this. Can be made of any combination of fabrics having the same or can be composed of only one uniform fabric, and can also be constructed so that the light shielding degree differs between single and double fabrics. .

10 Roll screen 14 Side plate (fixing member)
16 Winding pipe 18 Screen 18a Opaque fabric (shading part)
18b see-through fabric (non-shading part)
24 Holding bar (held part)
30 Holding part 32 Locking part 34 Latch (switching part)
38 Spring member (biasing means)
50 Release code (operation means)
54 Stopper (Operating means)

Claims (4)

A roll screen in which both ends of the take-up pipe (16) are rotatably supported by a pair of fixing members (14), and one end of the screen (18) is connected to the take-up pipe (16) so as to be wound and unwound. In
A held portion (24) is provided at the other end of the screen (18), and the held portion (24) can be detachably held by a holding portion (30) provided near the winding pipe (16). In the holding state where the holding portion holds the held portion, the screen (18) can be lifted and lowered in a doubled state, and in the non-holding state where the holding portion releases the holding portion, A roll screen characterized in that the screen (18) can be moved up and down without overlapping.   The holding portion (30) includes a movable locking portion (32) that moves between a holding position for holding the held portion (24) and a release position for releasing the holding, and a position of the locking portion (32). A switching portion (34) that switches between the holding position and the release position, and the switching portion (34) is a locking portion each time the held portion (24) contacts the holding portion (30). The roll screen according to claim 1, wherein (32) can be switched between a holding position and a release position.   The holding portion (30) has a movable locking portion (32) that moves between a holding position that holds the held portion (24) and a release position that releases the holding portion. 32) The roll according to claim 1, wherein 32) is normally urged toward the holding position by the urging means (38) and is moved to the release position by the operation of the operation means (50, 54). screen.   In the screen (18), a light shielding part (18a) and a non-light shielding part (18b) are continuously arranged in the ascending / descending direction, and the light shielding part (18a) and the non-light shielding part (18b) are doubled. The roll screen according to any one of claims 1 to 3, wherein the roll screen can be moved up and down in an overlapped state.

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