JP4101924B2 - Structure for fixing the faucet's synthetic resin handle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic resin handle fixing structure for a faucet installed in a kitchen sink or bathroom.
[0002]
[Prior art]
Conventionally, for example, in a faucet with a flow rate adjusting function provided in a kitchen sink, a cartridge having a flow rate adjusting mechanism is built in the faucet body, and a cartridge plug bar protruding from the faucet body has a structure as shown in FIG. The synthetic resin handle 40 is fastened and fixed with a screw 41 or a screw with a washer (not shown).
[0003]
[Problems to be solved by the invention]
However, in the configuration described above, the portion of the attachment portion of the synthetic resin handle 40 to the plug rod 42 that covers the end surface of the plug rod 42 is clamped directly by the screw head or via the washer. If it is excessive, the fastening portion of the synthetic resin handle 40 with the screw 41 is deformed, and there is a problem that the fastening of the screw 41 is loosened due to long-term use.
[0004]
The present invention provides a novel faucet synthetic resin handle fixing structure in which a tightening portion of a handle by a screw is not deformed even by excessive tightening of the screw, and the screw is not loosened even by long-term use. For the purpose.
[0005]
[Means for Solving the Problems]
To achieve the above object, the present invention includes a faucet body with a built-in cartridge with a flow rate and temperature adjusting mechanism, is screwed to stopper rods of the cartridge projecting from the faucet body, pivoted up and down by operating, water discharge, while it is possible to stop water and discharge amount adjusting, by rotation operation to the right and left, and a lever-type handle made of a synthetic resin Ru der adjustable temperature of the water discharge faucet In the above, the mounting portion of the handle attached to the plug rod in a state of covering the plug rod faces a fitting hole into which the plug rod is fitted, and an end surface of the plug rod fitted into the fitting hole. forming an opening, the opening, inserting a length of the metal bushing which corresponds to the opening depth has a flange that engages the external opening edge of the opening, the inserted screws into the bushing of the plug rod To be screwed into the screw hole formed on the end face Ri, made by screwing the handle to the plug rod,
Further, the lever-type handle made of synthetic resin has a lower half of the handle having a hollow shape, and a base end of the handle is attached to the stopper rod, and an upper surface of the lower half of the handle A single synthetic resin lid is detachably provided on the side, and the lower half of the handle is opened by removing the lid .
[0006]
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. The present invention is not limited thereby.
[0008]
1 to 3 show a reference example .
1 to 3, reference numeral 1 denotes a hot and cold water mixing faucet attached to a kitchen sink 2, for example. The hot and cold water faucet 1 is fastened with a screw 7 to a faucet body 5 containing a cartridge 4 having a flow rate / temperature adjustment mechanism 3 and a stopper bar 6 of the cartridge 4 protruding from the upper end of the faucet body 5. And a lever handle 8 made of synthetic resin.
[0009]
The faucet body 5 has a water supply part 10 connected to the water supply pipe 9, a hot water supply part 12 connected to the hot water supply pipe 11, and a water outlet 13. A water outlet is provided by the flow rate / temperature adjustment mechanism 3 of the cartridge 4. The discharge amount from 13 is adjusted, and the mixing ratio of hot water supply and water supply, that is, the water temperature is adjusted. The plug bar 6 is a prismatic operation bar for operating the flow rate / temperature adjustment mechanism 3. A stopper rod support cylinder 14 is disposed in the cartridge 4 so as to be rotatable about a vertical axis. A horizontal shaft 15 is provided on the stopper rod support cylinder 14, and the stopper rod 6 is vertically moved on the horizontal shaft 15. It is pivotally attached. Thereby, when the plug bar 6 is rotated up and down, the discharge amount is adjusted, and when the plug bar support cylinder 14 is rotated around the vertical axis integrally with the plug bar 6, the water temperature is adjusted.
[0010]
The synthetic resin lever-type handle 8 has a lower half portion 16 having a hollow shape, and a base end portion of the lever-type handle 8 is an attachment portion 17 to the plug rod 6. Further, a lid 18 made of synthetic resin is detachably provided on the upper surface side of the handle lower half 16, and the handle lower half 16 is opened by removing the lid 18. A rectangular fitting hole 19 into which the stopper rod 6 is fitted is formed in the mounting portion 17 from the lower side to the upper side. Further, the upper surface side of the mounting portion 17 is fitted into the fitting hole 19. A circular opening 20 facing the end face of the stopper rod 6 is formed. The plug bar 6 is inserted into the fitting hole 19 to a position where the end surface substantially abuts against the upper end surface of the fitting hole 19. A cylindrical metal bush 21 having a length corresponding to the opening depth is inserted into the opening 20. A screw 7 inserted into the bush 21 via a washer 22 is screwed into a screw hole 23 formed in the end face of the plug bar 6. As a result, the attachment portion 17 of the handle 8 is fastened and fixed to the stopper rod 6. In this handle mounting state, the portion of the faucet body 5 from which the plug bar 6 protrudes is covered with the mounting portion 17 of the handle 8.
[0011]
In the hot-water / water-mixing faucet 1, the lever-type handle 8 is turned up and down to allow water discharge, water stoppage, and discharge amount adjustment. Further, the temperature of the water discharge can be adjusted by rotating the handle 8 left and right.
[0012]
According to the fixing structure of the handle 8, the metal bush 21 is interposed between the end face of the plug bar 6 and the washer 22, so that the plug in the mounting portion 17 of the handle 8 is secured even if the screw 7 is excessively tightened. The portion covering the end surface of the rod 6 is not deformed. Therefore, tightening of the handle 8 by the screw 7 does not loosen even after long-term use.
[0013]
FIG. 4 shows an embodiment of the present invention. In this faucet 1, the washer 22 in the handle fixing structure of the previous reference example is omitted, and the outward flange 24 a that engages with the outer edge of the opening 20 of the handle mounting portion 17 instead of the previous bush 21. A cylindrical metal bush 24 having an upper end at the top is used. Other configurations are the same as those in the above reference example .
[0014]
According to this handle fixing structure, the flange 24a of the metal bush 24 substitutes for the washer 22 in the previous embodiment, so the number of parts can be reduced. Even if the screw 7 is tightened excessively, the portion covering the end face of the plug bar 6 in the mounting portion 17 of the handle 8 does not deform, and the tightening of the handle 8 by the screw 7 does not loosen even after long-term use. This is the same as in the previous embodiment.
[0015]
FIG. 5 shows another reference example . In this reference example, the handle fixing structure in the previous reference example is applied to a two-valve hot and cold water mixing faucet. That is, the two-valve type hot and cold water mixing faucet includes a faucet body incorporating a cartridge having a water flow rate adjusting mechanism and a cartridge having a hot water flow rate adjusting mechanism, and the plug bars of both cartridges protruding from the faucet body. Each of which is provided with a water handle and a hot water handle made of synthetic resin that are screwed to each other.
[0016]
FIG. 5 is an exploded perspective view showing one handle, for example, a knob-type handle 25 for water, and a part of a faucet body 27 from which a stopper rod 26 of a cartridge corresponding to the handle 25 protrudes. The center part of the knob type handle 25 is an attachment part 28 to the plug bar 26, and a fitting hole (not shown) for fitting the plug bar 26 from the lower end upward is formed. An opening 20 that faces the end surface of the plug rod 26 fitted in the fitting hole is formed on the upper surface side of the mounting portion 28. A cylindrical metal bush 21 having a length corresponding to the opening depth is inserted into the opening 20. A screw 7 inserted into the bush 21 via a washer 22 is screwed into a screw hole 23 formed in the end face of the stopper rod 26. As a result, the attachment portion 28 of the handle 25 is fastened and fixed to the stopper rod 26. In this handle attachment state, the portion of the faucet body 27 from which the plug bar 26 protrudes is covered with the attachment portion 28 of the handle 25.
[0017]
Even in the case of this handle fixing structure, even if the screw 7 is excessively tightened, the portion covering the end face of the plug bar 26 in the mounting portion 28 of the handle 25 is not deformed, and the handle 25 of the handle 25 by the screw 7 is not used for a long time. Tightening does not come loose.
[0018]
In the reference example of FIG. 5, the washer 22 may be omitted and a flanged metal bush 24 as in the embodiment of FIG. 4 may be used.
[0019]
Further, in the above you facilities embodiment, although a metal bush 2 4 a cylindrical, may be rectangular tube.
[0020]
【The invention's effect】
As described above, according to the present invention, a faucet body with a built-in cartridge with a flow rate and temperature adjusting mechanism, is screwed to stopper rods of the cartridge projecting from the faucet body, pivoted up and down by operating, water discharge, while it is possible to stop water and discharge amount adjusting, by rotation operation to the right and left, and a lever-type handle made of a synthetic resin Ru der adjustable temperature of the water discharge faucet In the above, the mounting portion of the handle attached to the plug rod in a state of covering the plug rod faces a fitting hole into which the plug rod is fitted, and an end surface of the plug rod fitted into the fitting hole. forming an opening, the opening, inserting a length of the metal bushing which corresponds to the opening depth has a flange that engages the external opening edge of the opening, the inserted screws into the bushing of the plug rod To be screwed into the screw hole formed on the end face Ri, made by screwing the handle to the plug rod,
Further, the lever-type handle made of synthetic resin has a lower half of the handle having a hollow shape, and a base end of the handle is attached to the stopper rod, and an upper surface of the lower half of the handle Since a single synthetic resin lid is detachably provided on the side, and the inside of the lower half of the handle is opened by removing the lid , the following effects are achieved .
[0021]
Will be intervening metal bushing with a flange between the end face and the screw head of the stopper rod, even screws are tightened excessively, part covering the plug rod end face of the handle mounting portion is not deformed . Therefore, the tightening of the handle by the screw does not loosen even after long-term use. Furthermore, since the flange of the metal bush serves as a substitute for the washer, the number of parts can be reduced.
[Brief description of the drawings]
FIG. 1 is a partially broken side view showing a main part in a reference example .
FIG. 2 is an exploded perspective view of a handle in the reference example .
FIG. 3 is an exploded perspective view of a handle fixing portion in the reference example .
4A is an enlarged cross-sectional view showing a handle fixing portion in one embodiment of the present invention, and FIG. 4B is a perspective view of a bush used in the handle fixing portion.
5 is an exploded perspective view of a handle fixing portion definitive to another reference example.
FIG. 6 is a cross-sectional view of a main part showing a conventional example.
[Explanation of symbols]
4 ... cartridge, 5 ... faucet body, 6 ... plug bar, 7 ... screw, 8 ... lever type handle, 16 ... lower half of the handle with a hollow shape, 17 ... handle mounting part, 18 ... lid, 19 ... fitting hole, 20 ... opening, 2 3 ... screw hole, 24 ... metal bushing, 24a ... flange.

Claims (1)

A faucet body having a built-in cartridge with a flow rate and temperature adjustment mechanism, this is screwed to stopper rods of the cartridge projecting from faucet body, by turning operation in the vertical direction, the water discharge, the water stopping and discharge amount while regulation is possible, by rotation operation to the right and left, in faucet that includes a lever-type handle made of a synthetic resin Ru der adjustable temperature of the water discharge, the plug rod while covering the plug rod A fitting hole for fitting the plug bar and an opening facing the end surface of the plug bar fitted in the fitting hole are formed in the attachment portion of the handle attached to the opening. insert the length of the metallic bush, which corresponds to a flange opening depth to engage the external port edges, by screwing the inserted screws into the bush to the threaded hole formed in the end surface of the plug rod Screw the handle to the plug Becomes Te,
Further, the lever-type handle made of synthetic resin has a lower half of the handle having a hollow shape, and a base end of the handle is attached to the stopper rod, and an upper surface of the lower half of the handle A single synthetic resin lid is detachably provided on the side, and the lower half of the handle is configured to be opened by removing the lid. Resin handle fixing structure.

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