JP4092988B2 - Pull switch pull string device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pull switch pull string device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a pull switch pulling device that can adjust the length of a pulling cord hanging from a pull switch has a structure shown in FIG. 8 (see Japanese Utility Model Laid-Open No. 4-133333).
[0003]
The pull string device includes a connection ring 41 that can be connected to an operation lever of a pull switch (not shown), a pull string 42 that is hooked on the connection ring 41 and folded back, and one that is folded back on the pull string 42 (which is long in FIG. 8). The knob 43 provided at the other end, the knob 44 provided at the other end (shorter in FIG. 8) folded back at the pull string 42, and the one folded at the pull string 42 are inserted. A length adjusting member 45 is provided that is positioned above the upper knob 44 and adjusts the length of the pull string 42 that is folded back from the connection ring 41 to the lower knob 43.
[0004]
Here, the upper knob 44 is formed with an insertion hole 44a through which both the folded back portions of the pull string 42 are inserted. The length adjusting member 45 is formed in a vertically long rectangular parallelepiped shape, and two insertion holes 45a and 45b through which the pull cord 42 is inserted are formed apart from each other in the vertical direction, and the two insertion holes 45a are formed. 45b, the insertion direction of the pull string 42 is reversed. Therefore, in the length adjusting member 45, one part of the pulling string 42 is held in a U-shape, and the pulling string 42 is moved by shifting the position of the length adjusting member 45. The length of the string 42 that is folded back from the connection ring 41 to the lower knob 43 can be adjusted.
[0005]
[Problems to be solved by the invention]
By the way, the pull switch is applied to various electric devices, and is applied to, for example, a lighting fixture, but a longer drawstring may be required depending on the height position in the installation state of the lighting fixture. If necessary, the connection ring 41 of the conventional pull string device shown in FIG. 8 may be connected to the other end of another pull string having one end attached to the pull switch operation lever or the like. It is done.
[0006]
However, when the connection ring 41 is connected to the other end of another drawstring, the connection ring 41 is located under a knob provided at the other end of the other drawstring, so that it looks good. It was not good.
[0007]
Further, in the pull cord device having the conventional configuration, since only one of the folded loops of the pull string 42 is inserted into the length adjusting member 45, the overall appearance of the left and right asymmetrical connection between the connection ring 41 and the upper knob 44 is achieved. It became a shape and it did not look good.
[0008]
The present invention has been made in view of the above-mentioned reason, and the purpose thereof is a pull switch that has two pull strings connected to each other, and is capable of adjusting the length from the pull switch to the lowermost knob and having a good appearance. It is in providing a drawstring device.
[0009]
[Means for Solving the Problems]
In order to achieve the above-described object, the first pulling string having one end attached to the pull switch and the other end of the first pulling string through which the first pulling string is inserted are provided. A first knob that is prevented from falling downward by a knot, a connection ring that is connected to the knot of the first drawstring inside the first knob, and a first hook that is folded back by being hooked on the connection ring In the second pull string, the second pull string, the second knob in which the one folded back in the second pull string is inserted and prevented from coming down by the knot provided at the one end, and the second pull string A length adjusting member that adjusts the length of the second pulling string that is turned back from the connecting ring to the second knob side by inserting both of the folded back above the second knob. The first pull string and the second pull string are connected via the connection ring. Since it is connected, it is provided with a length adjusting member that adjusts the length of the second pulling string that is folded back from the connection ring to the second knob side, so that the pull switch to the second knob at the lowermost end is provided. The length can be adjusted, and the connecting ring is disposed inside the first knob, and both the folded back portions of the second pulling string are inserted into the length adjusting member. Can be better.
[0010]
The invention of claim 2 is the invention of claim 1, wherein the first drawstring is provided with an annular ring portion at the knot portion, and the connection ring is detachably connected to the ring portion. The second pull string can be easily attached to and detached from the first pull string.
[0011]
According to a third aspect of the present invention, in the first or second aspect of the invention, the length adjusting member is a first insertion hole through which the one folded back on the second drawstring is slidably inserted. And a second insertion hole through which the other folded back of the second drawstring is inserted is vertically penetrated by a tie portion provided at the other end of the second drawstring. And a third knob in which both the folded back portion of the second pulling string are inserted from above and the stopper is mounted inside, are provided by the stopper. It has a function of fixing the other end of the two drawstrings and a function of holding the one in a slidable manner, and has a third knob in which a stopper is mounted to improve the appearance. be able to.
[0012]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the stopper is formed over the entire length along the vertical direction on the outer peripheral surface, and continues to the first insertion hole, and the second pull string is attached to the stopper. A first slit that can be introduced from the side into the first insertion hole; and a second drawstring that is formed over the entire length along the vertical direction on the outer peripheral surface and is continuous with the second insertion hole. Is provided with a second slit that allows the second insertion hole to be introduced into the second insertion hole from the side, so that the second insertion hole from the side to the first insertion hole and the second insertion hole during assembly. As compared with the case where the second drawstring is inserted into the first insertion hole and the second insertion hole from above and below, assembly work is facilitated.
[0013]
According to a fifth aspect of the present invention, in the third or fourth aspect of the invention, the lower surface of the stopper projects downward from a portion between the first insertion hole and the second insertion hole. Since the partition wall that separates both of the folded back cords of the two drawstrings protrudes, the one folded back of the second drawstring is not interfered with by a knot provided at the other end. It can be slid, and the length of the second pulling string that is folded back from the connection ring to the second knob side can be easily adjusted.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
In the embodiment described below, an example in which the pull switch pull string device of the present invention is applied to a lighting fixture is shown, but it is needless to say that the same configuration may be applied to other electric devices.
[0015]
First, a lighting apparatus to which a pull switch pull string device is applied will be described with reference to FIGS. The luminaire described in the present embodiment is a ceiling-suspended luminaire, and includes a connector 32 mechanically and electrically connected to a hook ceiling 31 fixed to the ceiling surface, and a connector 32. And a lamp A to which the derived power cord 2 is connected. In addition, the connector 32 has a pair of hooking blades whose front ends are bent in an L-shape and project from the upper surface of the device body, and each hooking blade is connected to two plugging blade insertion openings of the hooking ceiling 31. After being respectively inserted into the hook ceiling 31, the hook ceiling 31 is rotated in a predetermined direction with respect to the plane parallel to the ceiling surface, so that the hook ceiling 31 is mechanically coupled and electrically connected.
[0016]
The lamp A includes an appliance main body 1 to which the outer peripheral shape is formed in a circular shape and to which a power cord 2 is connected, and two annular fluorescent lamps held by a lamp socket 11 and a lamp support spring 12 provided in the appliance main body 1. La1 and La2, a bean ball Lb held in a lamp socket 13 provided on the lower surface side of the instrument body 1, a shade 3 attached to the instrument body 1 so as to surround the fluorescent lamps La1 and La2, and an outer periphery of the shade 3 And a decorative frame 4 attached to the surface side. The lamp support spring 12 is provided on one end side of the instrument body 1 in one diameter direction (left and right direction in FIG. 6B), and the lamp socket 11 is provided on the other end side in the diameter direction.
[0017]
The shade 3 is made of a synthetic resin having translucency, and is formed in a rectangular parallelepiped shape having an open bottom surface. The upper portion 3a of the shade 3 has a circular shape through which the upper portion of the instrument body 1 is inserted. The attachment hole 3b is opened. On the other hand, the outer peripheral surface of the instrument body 1 is provided with an outer flange portion 10b projecting over the entire periphery, and the peripheral portion of the mounting hole 3b in the upper wall 3a of the shade 3 is placed on the upper surface of the outer flange portion 10b. It has become.
[0018]
The appliance main body 1 incorporates a lighting device (not shown) that supplies electric power for lighting the fluorescent lamps La1 and La2, and a terminal portion 14 to which the power cord 2 is connected and a terminal on the upper surface of the appliance main body 1 A tension stopper 15 for holding the power cord 2 in the vicinity of the portion 14 is provided. The power cord 2 is inserted into a cord adjuster 19 that adjusts the length of the power cord 2 hanging from the connector 32. The length of the portion of the power cord 2 between the cord adjuster 19 and the terminal portion 14 is inserted. Can be adjusted. Further, a cord cover 17 that houses a portion of the power cord 2 below the cord adjuster 19 in the power cord 2 is disposed on the upper surface side of the instrument body 1, and the terminal portion 14, the tension stopper 15, and the like are also provided by the cord cover 17. Covered. The lighting device is supplied with power from a commercial power source with the connector 32 coupled to the hook ceiling 31.
[0019]
The lighting device is an electronic ballast including an inverter circuit and the like, and is configured by mounting circuit components on a circuit board (not shown). That is, the low-frequency commercial power supplied through the power cord 2 is converted into high-frequency power so that the fluorescent lamps La1 and La2 are lit at a high frequency. A changeover switch for switching the lighting state is also mounted on the lower surface of the circuit board. The changeover switch is a pull switch and is provided with a drawstring device 20 as an operation unit. The pull string device 20 is connected to a pull switch 18 on the lower surface side of the instrument body 1. The lighting device is a state in which the fluorescent lamps La1 and La2 are lit at a high output each time the drawstring device 20 is pulled (a state in which all the fluorescent lamps are lit), and a state in which the fluorescent lamp La is lit at a low output (a state in which dimming is performed) ), Four states of turning on only the bean ball Lb and turning off the light are switched cyclically.
[0020]
Hereinafter, the drawstring device 20 will be described with reference to FIGS. 1 to 5.
[0021]
The drawstring device 20 is lowered by a first drawstring 22 having one end attached to the pull switch and a knot portion 22b provided at the other end of the first drawstring 22 through which the first drawstring 22 is inserted. A first knob 23 which is prevented from coming off in a direction, and a connection ring 24 formed of a so-called S ring which is detachably connected to the knot portion 22b of the first pulling cord 22 inside the first knob 23. The second pulling string 25 hooked on the connection ring 24 and the one folded back on the second pulling string 25 (the right portion in FIG. 3A) are inserted and provided at the one end. Both the second knob 26 that is prevented from coming down downward by the knot portion 25a and the folded back part of the second pull string 25 are inserted above the second knob 26 so that the second pull string 25 Folded from the connection ring 24 to the second knob 26 side A stop 28 for adjusting the length that is, stop 28 and a third knob 27 to be OsameSo. Note that the above-described drawstring 22 has a knot 22a at one end connected to a connection ring 21 formed of a so-called S ring that is detachably connected to a pull switch 18. In the present embodiment, the second drawstring 25 constitutes an extension drawstring for the first drawstring 22, and the stopper 28 and the third knob 27 constitute a length adjusting member. ing.
[0022]
By the way, the lower knot portion 22b of the first drawstring 22 is formed by connecting the end portions of the first drawstring 22 so as to form an annular ring portion 22c as shown in FIG. . On the other hand, since the connection ring 24 on which the second drawstring 25 is hooked is formed in an S shape, it can be freely attached to and detached from the ring portion 22c provided on the knot portion 22b of the first drawstring 22. While being able to connect, the 2nd drawstring 25 can be hooked easily, and the attachment or detachment operation | work of the 2nd drawstring 25 with respect to the 1st drawstring 22 is easy. Therefore, for example, when the second drawstring 25 is unnecessary, the connection ring 24 may be removed from the ring portion 22c of the knot portion 22b of the first drawstring 22. In addition, since the second pull string 25 can be hooked on the connection ring 24 after the length of the second pull string 25 is adjusted by the stopper 28, the second pull string 25 can be hooked from the connection ring 24 to the second ring string 25. This makes it easy to adjust the length folded back toward the knob 26 side.
[0023]
The first knob 23 is formed in a bullet-like shape with an open bottom surface, and the internal space serves as a storage chamber 23 a for storing the lower knot portion 22 b of the first drawstring 22. In addition, a through hole 23b through which the first pulling string 22 is inserted is formed in the upper end portion of the first knob 23 along the vertical direction, and the through hole 23b communicates with the storage chamber 23a. The through hole 23b has a circular shape in a cross section perpendicular to the vertical direction of the first knob 23, and the inner diameter of the through hole 23b is larger than the outer diameter of the first pull string 22 and the first pull string. The dimensions are set such that the 22 knots 22b cannot be removed.
[0024]
The connection ring 24 on which the second pull string 25 is hooked is sized so that most of the connection ring 24 is stored in the storage chamber 23a of the first knob 23 together with the knot portion 22b of the first pull string 22. Is set. Therefore, the connection ring 24 on which the second drawstring 25 is hooked is connected to the knot portion 22b of the first drawstring 22 inside the first knob 23, so that the appearance is improved.
[0025]
Further, the above-described stopper 28 is made of a synthetic resin and is formed in a columnar shape as shown in FIG. 4, and the two insertion holes 28a and 28a penetrate in the vertical direction (the vertical direction in FIG. 4A). It is installed. However, the outer diameter of the stopper 28 gradually decreases from the lower side toward the upper side. One of the two insertion holes 28a, 28a of the stopper 28 is inserted into one insertion hole 28a (the right insertion hole 28a in FIG. 3A), and one of the folded back portions of the second drawstring 25 is slidable. The other of the second drawstring 25 is inserted through the remaining one insertion hole 28a (the left insertion hole 28a in FIG. 3A). Here, the stopper 28 is prevented from coming off downward by the knot portion 25 b provided at the other end of the second pull string 25. In the present embodiment, the former insertion hole 28a constitutes a first insertion hole, and the latter insertion hole 28a constitutes a second insertion hole. Further, both insertion holes 28a, 28a are formed in the same shape and the same size at the positions to be subject to the left and right if the left and right direction in FIG. Thus, in the present embodiment, the portion between the connection ring 24 and the second knob 26 is substantially the left and right in the front view, so that the appearance is improved.
[0026]
On the lower surface of the stopper 28, a partition wall 28 c that protrudes downward from a portion between the insertion holes 28 a and 28 a and separates both of the folded back portions of the second drawstring 25 is provided. Here, the partition wall 28 c is formed along the radial direction orthogonal to the straight line connecting the both insertion holes 28 a, 28 a on the lower surface of the stopper 28. Accordingly, since the partition wall 28c protrudes from the lower surface of the stopper 28, the one folded back in the second drawstring 25 is slid without being interfered with the knot portion 25b provided at the other end. The length of the second drawstring 25 that is folded back from the connection ring 24 toward the second knob 26 can be easily adjusted.
[0027]
Further, the stopper 28 is formed over the entire length along the vertical direction on the outer peripheral surface, and slits (split grooves) 28b and 28b continuing to the insertion holes 28a and 28a are formed outside the insertion holes 28a and 28a, respectively. Each slit 28b, 28b has a width in a direction perpendicular to the straight line connecting both the insertion holes 28a, 28a, and the second drawstring in a state where the stopper 28 is not housed in the third knob 27. 25 is set to such a size that can be introduced into the insertion holes 28a, 28a from the side. However, the widths of the slits 28b and 28b in the direction orthogonal to the straight line connecting both the insertion holes 28a and 28a are set to be narrower than the both insertion holes 28a and 28a. Therefore, when assembling, the second pull string 25 can be introduced from the side into each of the insertion holes 28a, 28a, and when the second pull string 25 is inserted into each of the insertion holes 28a, 28a from above and below. Compared with the assembly work becomes easier. In the present embodiment, of the two slits 28b, 28b, the slit 28b continuous with the insertion hole 28a serving as the first insertion hole constitutes the first slit, and the insertion hole serving as the second insertion hole. A slit 28b continuous with 28a constitutes a second slit.
[0028]
By the way, the 3rd knob 27 in which the stopper 28 is mounted is a spherical crown shape, and the storage recess 27a in which the stopper 28 is inserted from the lower side is formed in the lower surface, and the second upper part is formed in the upper part. A through hole 27b is formed which is inserted from above and is communicated with the storage recess 27a. The inner diameter of the through hole 27 b is set to be larger than twice the outer diameter of the second drawstring 25 and smaller than the outer diameter of the stopper 28. Of course, the inner diameter of the through hole 27b is set to a dimension that can prevent the connection ring 24 from being inserted. The storage recess 27a has a circular cross-sectional shape perpendicular to the vertical direction, and is formed such that the inner diameter gradually decreases toward the through hole 27b in the vertical direction. Since the stopper 28 is sometimes tightened so that the widths of the slits 28b and 28b are narrowed, the second pull string 25 can be reliably slid with respect to the insertion hole 28a serving as the first insertion hole.
[0029]
In the present embodiment, since the stopper 28 is mounted on the third knob 27, the appearance can be improved. In the present embodiment, since the dimension from the upper surface of the stopper 28 to the partition wall 28c is set to be larger than the maximum inner diameter of the storage recess 27, the stopper 28 is erroneously inserted into the storage recess 27. Insertion in the direction can be prevented.
[0030]
The above-mentioned second knob 26 is formed in a truncated cone shape having an open bottom surface, and the internal space has a storage chamber 26a for storing the knot portion 25a at the one end of the second pull string 25. It has become. The upper wall of the second knob 26 has a through hole 26b through which the second drawstring 25 is inserted, and the through hole 26b communicates with the storage chamber 26a. The through hole 26b has a circular shape in a cross section perpendicular to the vertical direction of the second knob 26, and the inner diameter of the through hole 26b is larger than the outer diameter of the second pull string 25 and the second pull string. The dimensions are set such that the 25 knots 25a cannot be removed.
[0031]
FIG. 3A shows a state in which the third knob 27 and the second knob 26 are brought into contact with each other and the distance between the connection ring 24 and the second knob 26 is minimized. 3B shows a state in which the third knob 27 is positioned in the vicinity of the connection ring 24 and the distance between the connection ring 24 and the second knob 26 is the longest. Here, in the state shown in FIG. 3A, the second pull string 25 folded back by the connection ring 24 is doubled between the connection ring 24 and the third knob 27 on the second knob 26. (That is, the second pull string 25 apparently becomes two), the rebound when the second knob 26 is pulled is suppressed, and the lamps La1 and La2 can be prevented from breaking. .
[0032]
In the present embodiment, since the second knob 26 is formed of a phosphorescent material, the position of the second knob 26 can be visually recognized even when the surroundings are dark, for example, when sleeping at night. In the present embodiment, the second pull string 25 is hooked on the connection ring 24 connected to the lower end of the first pull string 22, but the first pull string is removed and the second pull string 25 is removed. It is also possible to hook the connection ring 21 connected to the pull switch 18 of the pull switch.
[0033]
【The invention's effect】
According to the first aspect of the present invention, the first pulling string having one end attached to the pull switch, and the knot portion provided at the other end of the first pulling string through which the first pulling string is inserted are pulled downward. A first knob that is stopped, a connection ring that is coupled to the knot portion of the first pull string inside the first knob, a second pull string that is hooked on the connection ring, and a second pull string A second knob that is inserted in one of the two drawstrings and is prevented from coming down downward by a knot provided at one end thereof, and both of the second knob that is folded back in the second drawstring are second A length adjusting member that is inserted above the knob and adjusts the length of the second pull string that is folded back from the connection ring to the second knob side. The first pull string and the first pull string Since the 2 drawstrings are linked via the connection ring, the second drawstring is the connection ring. The length from the pull switch to the second knob at the lowermost end can be adjusted by providing a length adjusting member that adjusts the length folded back to the second knob side, and the connecting ring is Since both of the folded back portions of the second drawstring are inserted into the length adjusting member and the length adjusting member is inserted, there is an effect that the appearance can be improved.
[0034]
The invention of claim 2 is the invention of claim 1, wherein the first drawstring is provided with an annular ring portion at the knot portion, and the connection ring is detachably connected to the ring portion. There is an effect that the work of attaching and detaching the second drawstring with respect to the first drawstring becomes easy.
[0035]
According to a third aspect of the present invention, in the first or second aspect of the invention, the length adjusting member is a first insertion hole through which the one folded back on the second drawstring is slidably inserted. And a second insertion hole through which the other folded back of the second drawstring is inserted is vertically penetrated by a tie portion provided at the other end of the second drawstring. And a third knob in which both the folded back portion of the second pulling string are inserted from above and the stopper is mounted inside, are provided by the stopper. It has a function of fixing the other end of the two drawstrings and a function of holding the one in a slidable manner, and has a third knob in which a stopper is mounted to improve the appearance. There is an effect that can be.
[0036]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the stopper is formed over the entire length along the vertical direction on the outer peripheral surface, and continues to the first insertion hole, and the second pull string is attached to the stopper. A first slit that can be introduced from the side into the first insertion hole; and a second drawstring that is formed over the entire length along the vertical direction on the outer peripheral surface and is continuous with the second insertion hole. Is provided with a second slit that allows the second insertion hole to be introduced into the second insertion hole from the side, so that the second insertion hole from the side to the first insertion hole and the second insertion hole during assembly. The pulling string can be introduced, and the assembly work can be facilitated as compared with the case where the second pulling string is inserted into the first insertion hole and the second insertion hole from above and below, respectively. is there.
[0037]
According to a fifth aspect of the present invention, in the third or fourth aspect of the invention, the lower surface of the stopper projects downward from a portion between the first insertion hole and the second insertion hole. Since the partition wall that separates both of the folded back cords of the two drawstrings protrudes, the one folded back of the second drawstring is not interfered with by a knot provided at the other end. It can be slid, and there is an effect that it is easy to adjust the length of the second pull string that is folded back from the connection ring to the second knob side.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a front view of a principal part, partially broken away, showing an embodiment.
FIG. 2 is an explanatory diagram of a main part of the above.
FIG. 3 is an explanatory view of the main part of the above.
4A and 4B show a stopper used in the above, in which FIG. 4A is a partially broken front view, FIG. 4B is a side view, FIG. 4C is a plan view, and FIG.
FIG. 5 is a partially cutaway front view of the luminaire to which the above is applied.
6A and 6B show a main part of a lighting fixture to which the same is applied, FIG. 6A is a plan view, and FIG. 6B is a bottom view.
FIG. 7 is a bottom view of a shade in a lighting fixture to which the same is applied.
FIG. 8 is a partially broken front view showing a conventional example.
[Explanation of symbols]
20 Pull-string device 22 First pull-string 22b Knot portion 22c Ring portion 23 First knob 23a Storage chamber 23b Through hole 24 Connection ring 25 Second pull-string 26 Second knob 27 Third knob

Claims (5)

A first pulling string having one end attached to the pull switch and a first pulling string inserted through the first pulling string and a knot provided at the other end of the first pulling string prevent the first pulling string downward. A knob, a connection ring connected to the knot portion of the first pull string inside the first knob, a second pull string folded back by hooking on the connection ring, and folded at the second pull string A second knob that is inserted through one end and is prevented from coming down downward by a knot provided at one end thereof, and both folded back at the second pull string are inserted above the second knob. A pull switch pull string device, comprising: a length adjusting member that adjusts a length of the second pull string that is folded back from the connection ring toward the second knob. 2. The first drawstring is characterized in that an annular ring portion is provided at the knot portion of the first drawstring, and the connection ring is detachably connected to the ring portion. Pull switch drawstring device. The length adjusting member includes a first insertion hole through which the one folded back at the second drawstring is slidably inserted and a second through which the other folded back at the second drawstring is inserted. Each of the two insertion holes extending vertically and having a stopper that is prevented from coming down by a knot provided at the other end of the second pull string; and 3. The pull switch pull string device according to claim 1 or 2, further comprising a third knob in which both folded members are inserted from above and a stopper is mounted inside. The stopper is formed over the entire length along the vertical direction on the outer peripheral surface and is continuous with the first insertion hole so that the second pull string can be introduced into the first insertion hole from the side. The first slit is formed over the entire length along the vertical direction on the outer peripheral surface and is continuous with the second insertion hole, so that the second pull string can be introduced into the second insertion hole from the side. 4. The pull switch pull string device according to claim 3, wherein a second slit is provided. A partition wall that protrudes downward from a portion between the first insertion hole and the second insertion hole and separates both of the folded back portions of the second pull string is provided on the lower surface of the stopper. The pull string device for a pull switch according to claim 3 or 4, wherein the pull string device is a pull switch.

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