JP3803801B2 - Shutter pulling device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a manual shutter attached to an opening of a house or the like, and more particularly to a shutter pulling device that improves operability in pulling down the shutter.
[0002]
[Prior art]
A hook bar or the like that can be engaged with a bottom slat is used as a pulling device for a manual shutter in a rolled-up state that is difficult to reach. However, this hook bar requires a storage space and is easily lost. Also, engaging the bottom slat is troublesome. For this reason, a pull-down member that is slidable in the vertical direction along the guide member is suspended from the engagement member that is detachable from the bottom slat, and the pull-down member is released from the pull-down operation. Has been proposed (Japanese Patent Publication No. 7-21276), which is provided with return means for automatically returning to the initial engagement position.
[0003]
[Problems to be solved by the invention]
In a manual shutter, the weight of the shutter is reduced by urging the shutter in the winding direction with a winding spring charged in the winding drum. Ideally, this hoisting force should be balanced with its weight over the entire lifting stroke of the shutter, but in reality this is not possible, especially in the upper position where the shutter is difficult to reach. The strength is set to automatically wind up when present.
[0004]
Therefore, according to the shutter pulling device, even when the bottom slat is lowered to a position where the hand can be reached (hereinafter referred to as an initial pulling position) by the pulling operation of the pulling member, the hand is not released from the pulling member. You can't (shutter goes up) and you have to keep it down and pull it down with the other hand. For this purpose, it is necessary to use both hands, and since either hand is not a dominant arm, it is inconvenient because it does not produce power. The present invention is such that even after the shutter is pulled down to the initial pulling position by lowering the pulling member, the shutter is held in that position, and the shutter can be pulled down by the hand operating the pulling member. is there.
[0005]
[Means for Solving the Problems]
Under the above-described problems, the present invention provides a laterally extending side-by-side portion of the pull-down member that is provided by the pull-down operation of the pull-down member that hangs down to a reachable position. In the shutter pull-down device that lowers the engagement member that can be moved up and down along the guide member provided on the bottom slat, the engagement member is lowered to a position where the bottom slat can be reached by the pull-down operation of the pull-down member Then, when the upward movement is restricted by the locking means, it stays in that position, and when the shutter is pulled down directly by hand, the locking means is released by the release member provided on the slat. The upper urging member is raised to a position where it cannot be re-locked and stopped.Then, when the bottom slat reaches the stop position when the shutter is lifted directly by hand, It is obtained by providing a shutter cuts and wherein the pushed up by re-engagement with the Tsu bets.
[0006]
When the engaging member is engaged with the shutter by the pulling-down operation of the pulling member and the shutter is pulled down to the initial pulling position, the engaging member remains in that position with the upward movement restricted by the locking means. Therefore, the shutter does not rise even if the hand is released from the pull-down member. Therefore, the bottom slat can be changed with the hand operating the pull-down member and pulled down. In this respect, the pulling member and the bottom slat can be operated with the dominant arm, which is easy to use. On the other hand, the locking means is released by further lowering of the slats so that the bottom slats are lowered to close the opening (hereinafter referred to as “lowering position”), and the position where the bottom slat is raised to open the opening. Since the bottom slat is pulled up (to be referred to as a pulling position hereinafter) to engage the engaging member and push it up together, it is convenient that the engaging member is not required to be released or returned.
[0007]
In this case, as a specific configuration of the locking means, the locking means described in claim 2 includes a locking receiving portion in which a locking portion formed on the engaging member is formed above or above the guide member. After passing through the lock receiving portion, it goes around and locks to the lower side of the lock receiving portion, and the release member protruding from the back surface of the slat pushes the engagement member so that the lock portion is moved from below the lock receiving portion. It can be removed and released. According to a third aspect of the present invention, the engaging member is applied to the shutter at least in the vicinity of the lowering start position until the bottom slat is lowered from the lowering start position to a position where the hand can reach by the lowering operation of the lowering member. If the lower biasing member has a lower force than the hoisting force, the lowering force to the initial lowering position of the shutter by the lowering member is reduced, and the bottom slat is The collision between the bottom slat and the storage box when it comes to the pulled position is alleviated, and both sound and vibration are suppressed. Of course, since this downward biasing force is weaker than the hoisting force applied to the shutter, the shutter is automatically pulled from the initial pulling position to the pulling position by the difference in this force.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 8 show an example of the present invention. FIG. 1 is a rear view of the shutter in a state where the shutter is pulled up to the lifted position and the opening is opened, and FIG. 2 is a shutter with the shutter pulled down to the initial lowered position. FIG. 3 is a rear view of the shutter in a state where the shutter is pulled down to the lowered position to close the opening, FIG. 4 is a perspective view showing the relationship between the guide member, the engaging member, and the lowering member, and FIG. FIG. 6 is a sectional view showing the relationship between the guide member, the engaging member, and the pulling member in a state in which the engaging member is engaged with the bottom slat. FIG. FIG. 8 is a cross-sectional view showing the relationship between the guide member, the engaging member, and the pulling member in a state of being locked by FIG. 8, and FIG. It is sectional drawing which shows these relationships.
[0009]
The shutter 1 is formed by connecting a plurality of slats 2 having hook portions (not shown) at the upper and lower ends so that the hook portions can be engaged with each other so as to be bent up and down. 4 is hung so that it can be wound up, and the left and right ends are inserted and guided into a guide rail 5 having a U-shaped cross section. The shutter pull-down device according to the present invention includes an engagement member 6 that can be engaged with a bottom slat 2a constituting the lowermost end of the slat 2, a pull-down member 7 that is connected to the engagement member 6 and lowers the engagement member 6, and an engagement member. 6 and a guide member 8 for guiding the pull-down member 7 and the like.
[0010]
Of these, the guide member 8 is a square pipe that is attached to the back surface of the guide rail 5 and the like over a predetermined length from the vicinity of the bottom slat 2a at the initial lowering position. It is supposed to be. In order to reinforce the guide rail 5, the guide member 8 is usually molded by plate members 10 and 11 partially inserted into the pipe at the upper and lower portions with respect to the mold member 9 attached to the back surface thereof. The frame 9 is fixed in a sandwiched manner. Therefore, when the formwork material 9 is not provided, it is fixed directly to the guide rail 5.
[0011]
The engaging member 6 is connected to the elevating body 12 that can move up and down in the guide member 8 and the elevating body 12 with a pin 13 or the like and is allowed to fall to some extent and protrudes upward from the guide member 8. The upper end of the engaging body 14 is bent horizontally toward the center side of the shutter to form an engaging portion 15. In this case, the lifting body 12 is in sliding contact with the guide member 8 so that the lifting and lowering is smooth. Therefore, since the guide member 8 only needs to guide the raising and lowering of the engaging member 6, the guide rail 5 or the frame material 9 can also be configured to directly guide the raising and lowering of the engaging member 6. However, since it is easier to attach to the shutter if it is provided separately as in this example, it is particularly suitable when retrofitting to an existing shutter or when changing the left and right according to the user's convenience. .
[0012]
A collar member 16 having a square hole through which the engaging body 14 is inserted is provided near the upper end of the guide member 8, and the engaging body 14 is raised and lowered along the collar member 16. The member 16 is slid by being pressed against the collar member 16 by a leaf spring 17 provided so as to protrude from the upper surface of the outer end of the member 16. In this respect, the leaf spring 17 is used to erect the engaging body 14 and is not necessarily provided integrally with the collar member 16. Since the collar member 16 is inserted and fixed in the middle of the guide member 8, the collar member 16 is configured to be engaged with each other by forming an uneven structure 18.
[0013]
Engagement blocks 20 constituting engagement means 19 are attached to the opposite end portions of the bottom surface of the bottom slat 2a. The engagement block 20 of this example is L-shaped in a rear view in which a horizontal bottom surface 20b is formed at the lower end of the vertical wall 20a, and the engagement block 20 and the engagement portion 15 at this time The positional relationship is such that when the bottom slat 2a is raised to the pulled-up position, the engaging portion 15 is located on the bottom surface 20b with its tip close to the vertical wall 20a of the engaging block 20. Further, the engaging block 20 at this time is provided with a release member 21 protruding in a gentle mountain shape from the vertical wall 20a as viewed from the rear side, protruding above the engaging portion 15. In addition, stopper blocks 28 are provided at both ends of the surface of the bottom slat 2a by being screwed to the engagement block 20 on the bottom slat 2a. It comes to stop.
[0014]
Further, an engaging portion 22 that protrudes inward is formed below the engaging portion 15 in the engaging body 14. On the other hand, a protruding piece that extends upward from the side facing the leaf spring 17 of the collar member 16 is formed. A locking receiving portion 23 protruding outward is formed at the distal end portion. When the engaging body 14 is lowered to a position corresponding to the initial pulling position, the locking portion 22 is described above as the locking receiving portion 23. The plate spring 17 can be elastically locked by the action of the leaf spring 17, and these constitute the locking means 24. By the way, although the illustrated locking portion 22 has a mountain shape, this is because it is pushed out in the middle of the engaging body 14 for easy molding, and even in this case, the upper surface is horizontal. The horizontal lower surface of the latch receiving portion 23 is in contact with a state in which a sufficient engagement allowance is ensured, and is not easily detached.
[0015]
On the other hand, when the locking portion 22 passes through the locking receiving portion 23, the locking portion 22 has to get over the locking receiving portion 23 outward, but the engaging body 14 is pin 13 relative to the lifting body 12. Since it is pivotally attached and is allowed to fall outside, this overcoming is possible. Therefore, the rectangular hole of the collar member 16 inserted through the engagement body 14 is also formed in a long hole so that the engagement body 14 is allowed to fall outward. In addition, the lifting member 12 is connected to a pull-down member 7 composed of a cable body 25 such as a wire, and a position where the lower plate member 11 fixing the guide member 8 is inserted and easily reachable. Hangs down. At this time, the lower part of the pull-down member 7 has come out of the guide member 8, and the guide member 8 does not interfere when grasping this with the hand.
[0016]
Further, a lower urging member 26 such as a spring is fitted in the engaging body 14 between the lifting body 12 and the collar member 16, and when the bottom slat 2a is pulled up at least to the lifting position, the lifting body 12 is moved. Is energized downward. The downward urging force by the downward urging member 26 is set to be weaker than the hoisting force of the shutter 1 applied by a winding spring incorporated in the drum 4. Further, the pulling member 7 between the lower plate member 11 and the lifting body 12 is fitted with an upper biasing member 27 which is also made of a spring or the like. When the bottom slat 2a is lowered to the initial pulling position, the lifting body is lowered. 12 is biased upward. The upper biasing member 27 starts to be compressed and acts immediately before the elevating body 12 descends to a position corresponding to the initial lowering position.
[0017]
As described above, when the shutter 1 is to be pulled down, the pulling member 7 is usually gripped by the dominant arm and pulled downward. Then, the engaging portion 15 of the engaging body 14 comes into contact with the bottom surface 20b of the engaging block 20 and pushes it down to lower the bottom slat 2a to the initial lowering position. At this time, since the lower urging member 26 urges the elevating body 12 downward, the lowering member 26 can be lowered with a light force.
[0018]
When the bottom slat 2a is lowered to the initial lowering position in this way, the locking means 24 works. That is, the locking portion 22 formed on the engaging body 14 is locked to the locking receiving portion 23 formed on the collar member 16. At this time, the above-described leaf spring 17 presses the locking portion 22 formed on the engaging body 14 against the locking receiving portion 23 side and holds this locked state.
[0019]
Further, when the bottom slat 2a is lowered to this position, the engaging portion 15 comes into contact with the upper end of the guide member 8 so as not to be lowered any further, so that the upper biasing member 27 is not compressed more than the allowable load. It has become. When the locking portion 22 is locked to the locking receiving portion 23, even if the hand is released from the pull-down member 7, the engaging member 6 (also the shutter 1) stays in that position and does not rise. When the bottom slat 2a is lowered to the initial lowering position, the upper urging member 27 works to apply an upper urging force to the elevating body 12. Depending on the urging force, the locking portion having the above-described shape is provided. 22 is configured not to be detached from the latch receiving portion 23.
[0020]
When the bottom slat 2a is lowered to the initial lowering position by the lowering of the engaging member 6 and remains in that position, the hand is released from the lowering member 7 and the bottom slat 2a is moved slowly. It can be pulled down to the lowered position. On the other hand, since the release member 21 described above passes through the engaging portion 15 at the initial stage of the lowering, the release member 21 comes into contact with the distal end of the engaging portion 15 to force the engaging portion 15 to the force of the leaf spring 17. The locking means 22 is released from the locking receiving part 23 by releasing the locking part 22 from the locking receiving part 23. Then, the engaging member 6 including the elevating body 12 is raised by the upper urging member 27 as far as the urging action reaches and stays in that position, so that it is not locked again.
[0021]
By the way, the relationship between the lower urging member 26 and the upper urging member 27, the lower urging member 26 acts to the initial lowering position in terms of the role of reducing the lowering force from the pulling position. desirable. However, since the urging force of the upper urging member 27 is activated immediately before the initial lowering position, if the urging forces in opposite directions are applied together, the upper urging action is absolutely necessary. The urging force of the urging member 27 must be increased accordingly, and then the pulling down in this range becomes heavy. Therefore, the lower biasing force of the lower biasing member 26 is preferably lost when the upper biasing force of the upper biasing member 27 starts to act. Even in such a case, the range that the upper biasing force of the upper biasing member 27 reaches is limited. Since it is slight and the force exerted is only a small amount that raises the engagement member 6 somewhat, there is no significant influence on the lowering.
[0022]
On the other hand, when pulling up the bottom slat 2a to the pulling position, when the bottom surface 20b of the engagement block 20 rises to a position where the engagement portion 15 is stopped, the engagement member 6 is engaged with the bottom slat 2a. Push up to the original position. At this time, the downward urging force weaker than the lifting force of the shutter 1 by the downward urging member 26 suppresses the rising speed of the shutter 1 and suppresses the sound when the bottom slat 2a collides with the storage box 3. Thus, the automatic pull-in of the shutter 1 into the storage box 3 is not hindered.
[0023]
In view of the above, the above-described pulling-down device is an example, and the present invention is not limited to this. For example, the engaging block has a wall surface in which a vertical wall and a bottom surface are continuous. However, a pin or the like exists partially as a release member or a bottom surface formed on the vertical wall. Alternatively, the release member may be provided on a slat above the bottom slat. Furthermore, although the engaging body has illustrated the thing of a square bar shape, a round bar shape and a plate-shaped thing may be sufficient. The point is that the engaging member abuts against the bottom surface when the engaging member is lowered, and the member corresponding to the releasing member presses the engaging member when the shutter is lowered. Furthermore, the pull-down device may be provided on each of the left and right sides of the shutter. In this case, the pull-down operation can be performed from either the left or right, and the sound when the bottom slat collides with the storage box can be heard. The effect of the downward biasing member to be suppressed can be obtained equally on the left and right.
[0024]
【The invention's effect】
As described above, according to the present invention, when the engaging member is engaged with the shutter by the pulling-down operation of the pulling member and pulled down, when the shutter is lowered to the initial pulling position, the engaging member is moved upward by the locking means. Since the movement is locked in a restricted state and stays in that position, the lowering operation to the initial lowering position and the subsequent lowering of the shutter can be performed with the same dominant arm under a slow motion, It will be easy to do. Furthermore, if the engaging member is urged downward with a force weaker than the hoisting force applied to the shutter, the initial pulling can be performed with a light force, and the collision sound between the shutter and the storage box at the lifting position can be achieved. Can be reduced.
[Brief description of the drawings]
FIG. 1 is a rear view of a shutter showing an example of the present invention.
FIG. 2 is a rear view of a shutter showing an example of the present invention.
FIG. 3 is a rear view of a shutter showing an example of the present invention.
FIG. 4 is a perspective view of a main part of a pulling device showing an example of the present invention.
5 is a cross-sectional view taken along line AA in FIG.
FIG. 6 is a cross-sectional view of a main part of a pulling device showing an example of the present invention.
FIG. 7 is a cross-sectional view of a main part of a pulling device showing an example of the present invention.
FIG. 8 is a cross-sectional view of a main part of a pulling device showing an example of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shutter 2 Slat 2a Bottom slat 6 Engaging member 7 Pulling-down member 8 Guide member 21 Release member 22 Locking part 23 Locking receiving part 24 Locking means 26 Lower biasing member 27 Upper biasing member

Claims (3)

A bottom slat is provided with an engaging member that can be moved up and down along a guide member that is provided on the side of the pulling member that is connected to the pulling member by a pulling operation of the pulling member that is hanging down to a reachable position. In the shutter pull-down device which is engaged and pulled down, the engaging member is engaged in a state where the upward movement is restricted by the locking means when the bottom slat is lowered to a position where the hand can reach by the pull-down operation of the pull-down member. When the shutter is stopped and stayed in that position, and then the shutter is directly pulled down by hand, the locking means is released by the release member provided on the slat, and is raised to a position where it cannot be locked again by the upper biasing member. Next, when the bottom slat reaches the stop position by directly lifting the shutter by hand, it is pushed up while being re-engaged with the bottom slat. To shutter cuts apparatus. The locking means is configured to wrap around and lock below the locking receiving portion after the locking portion formed on the engaging member passes through the locking receiving portion formed above or above the guide member. The shutter pulling-down device according to claim 1, wherein a release member protruding from the back surface of the slat is released by pressing the engagement member to release the engagement portion from below the engagement receiving portion. The engaging member has a force weaker than the hoisting force applied to the shutter at least in the vicinity of the lowering start position until the bottom slat is lowered from the lowering start position to a position where the hand can be reached by the lowering operation of the lowering member. The shutter pulling-down device according to claim 1, wherein the shutter pulling-down device is biased downward by the downward biasing member.

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