JPS59149200A - Steam iron - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a steam iron that can appropriately eject steam from the underside of the pace.

[Technical background of the invention and its problems]

This glaze iron has an evaporation chamber formed on the top surface of the pace equipped with a heater, a dripping nozzle facing this evaporation chamber, and opening and closing operation of this dripping nozzle via an opening/closing mechanism. Water is dripped onto the surface, and the water is evaporated by the heat of the pace to become steam, which is successively guided to the bottom side of the pace and ejected. If the temperature of the pace is high enough to generate steam, the water dropped from the drip nozzle will quickly evaporate, and under these conditions, the water dropped from the drop nozzle will There is no problem if you open the door.

However, if the pace does not reach the appropriate temperature for steam generation, 1. In other words, for example, when the iron is not in use, immediately after the J-heater is energized, or when the power cord is unplugged from the indoor outlet during use, the dripping nozzle is opened and water drips into the evaporation chamber. When this happens, evaporation is not performed properly and water accumulates in the evaporation chamber, causing problems such as corrosion of the pace and water droplets leaking from the underside of the pace.

[Purpose of the invention]

The present invention was made with attention to these points, and its purpose is to provide a steam iron that prevents water from dripping into the evaporation chamber unless the base reaches the appropriate temperature for generating steam. It is about providing.

[Summary of the invention]

The present invention provides a restraint mechanism that restrains the operation of the drip nozzle opening/closing mechanism to permanently close the drip nozzle, and a thermal release mechanism that senses the temperature when the base reaches an appropriate temperature for steam generation and releases the restraint mechanism. It is characterized by having the following.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is an iron main body, and 2 is a cassette-type water tank detachably provided at the front end of the iron main body 1. The iron main body 1 includes a cover 4 covering the top surface of a base 3, a heat shield plate 5 provided on the top surface of the cover 4, and a handle 6 attached to the top surface of the heat shield plate 5.

A heater 7 is cast into the base 3, and an evaporation chamber 8, a separation chamber 9, and a guide chamber 10 are formed on the upper surface, and the upper surface of each chamber 8', 9.10 is airtight with a common lid plate 11. A water guide body 12 is provided above the lid body 11. An opening 13 is formed in the lid body 11 facing the branch chamber 9, and a valve case 14 is provided above the opening 13. The evaporation chamber 8 communicates with the branch chamber 9 from the valve case 14 through the opening 13, and also communicates directly with the guide chamber 10. The branch chamber 9 and the guide chamber 10 are each provided with ejection holes 15 and 16 that communicate with the lower surface of the base 3.

The water tank 2 is made of, for example, synthetic resin, has a substantially U-shape when viewed from above, and is arranged so that both sides thereof straddle both sides of the front end side of the handle 6. water tank 2
An outlet 17 and a valve mechanism 18 are provided at the bottom of the valve mechanism 18, and the valve mechanism 18 has a valve rod 20 slidably supported on a support 19.
A disk-shaped valve body 2 is attached to the middle part of the valve body 2, and this valve body 21 is elastically biased via a spring 22 toward the side where the outlet port 17 is arranged and in the direction of closing the pick-up outlet 17. Become.

The lower end of the valve rod 20 projects into the inner center of the outlet 17.

The water conductor t2Fi has an inlet 25 and an outlet 26 that communicate with each other, an inlet 27 is formed on the upper surface of the inlet 25, and a push-up pin 28 is vertically protruded from the inner bottom of the inlet 27. A connecting plate 2 is attached to the outlet 17 of the water tank 2.
9 is provided, and this connection plate 29 is removably and liquid-tightly fitted and connected to the introduction port 27, and the push-up pin 28
comes into contact with the valve rod 20 and pushes up the valve body 21 against the spring 22, keeping the outlet 17 open, so that the water contained in the water tank 2 passes through the outlet 17 and flows into the introduction section 25. and is introduced into the deriving section 26. Derivation section 26
is provided with a drip nozzle 30, and the tip of this nozzle 39 passes through the cover plate 1 and faces the evaporation chamber 8 of the base 3. An opening/closing rod 31 is inserted into the introduction part 26 so as to be vertically movable, and the nozzle hole 32 at the tip of the dripping nozzle 30 is opened/closed by the vertical movement of the opening/closing rod 31.

A rotatable cam disc 35 and operating bodies 3 and 6 for rotating the cam disc 35 are housed in the upper front end of the handle 6. The operating body 36 is integrally provided with an operating knob 37. 37 protrudes outside the nozzle 6. Display plate 3. i is provided, and instructions for temperature setting and steam generation are provided on the periphery of the display plate 34, and the operation knob 37 can be moved along this periphery. . The cam disk 35 has first and second cam surfaces 5 B , 99 formed in a circular arc shape on the peripheral edge side of the lower surface thereof. These cam surfaces 38 and 39 are each formed in an inclined shape having a height difference from one end side to the other side. The upper end side of the opening/closing rod 31 for opening and closing the dripping nozzle 30 slidably passes through the rapid heating plate 5 and the lip 40 of the handle 6, and projects upwardly inside the handle 6.
Its upper end is slidably inserted into the inner hole 42 of the interlocking rod 41. The interlocking rod 4 is elastically urged upward by a spring 43, and its upper end comes into elastic contact with the first cam surface 38 due to the urging force. Reference numeral 44 denotes an adjustment rod, and the adjustment rod 44 is connected to an interlocking piece 45 provided on a temperature controller (not shown) that controls the energization of the heater 7 and adjusts the temperature of the base 3. It is elastically abutted against the cam surface 39 of No. 2 by the biasing force of the interlocking piece 44.

A recess 47 is located on the upper surface of the base 3 near the evaporation chamber 8.
is formed, and a reversible bimetal 48, for example, is housed in this recess 42 as a heat-sensitive member. A response rod 49 is still in contact with the bimetal 48, a regulating plate 50 is fixed 7f to the upper end of this response lever 49, a through hole 51 is formed at one end of this regulating plate 5θ, and the opening/closing rod 31 is inserted into the through hole 51. is inserted. A locking plate 52 is attached to the opening/closing rod 31 at a lower side of the regulating plate 50, and the regulating plate 50 is in contact with this locking plate 52.

The opening/closing rod 31 is provided with a spring 53, and the opening/closing rod 31 is elastically biased upward by this spring ssK. Further, a spring 54 is provided on the response rod 49, and the spring 54 elastically biases the response rod 49 downward. The spring 54 of the response rod 49 has a stronger elastic force than the spring 53 of the opening/closing rod 31, and therefore the spring 54 of the response rod 49
The opening/closing rod 31 is connected to the spring 53 via the regulating plate 50.
This causes the nozzle hole 32 of the drip nozzle 30 to be normally closed.

The valve case 14 provided in the upper part of the flow dividing chamber 9 has an opening 1
A valve body 55 is provided opposite to the valve body 3, and this valve body 55 is supported via a support shaft 56 so as to be movable up and down, and is elastically biased upward by a spring 57.

Then, the operating rod 58 comes into contact with the support shaft 56. , operating lever 5 with
8 is slidably inserted through the center of the cam disk 35, and its upper end reaches the upper end portion of the handle 6. An operation button 60 is provided at the upper end of the knob 6, and this operation button 60
Almost the upper half protrudes upward from the upper surface of the handle 6, and the lower half is slidably housed inside the operating body 36.

This operation button 60 is elastically biased upward via springs 61 and 62.
When the operation button 60 is pushed into F ten thousand by ψ11 against +62, the support shaft 56 is pressed through the operation rod 58, and the valve body 55
descends and collides with the opening 13, thereby closing the opening 13 and maintaining this state. 1. When the operation button 60 is pressed again with (-), the operation button 60 protrudes and the spring 57 is released. The elastic force causes the valve body 55 to rise by -E, opening the opening 13.

- A locking body 65 is attached to the handle 60 at the upper part of the front end of the handle 6.
It is installed so that it can slide freely in the front and rear directions. This locking body 65 has an annular base 66 at its intermediate portion, and a locking piece 67 is integrally provided at one end of the base 66, and an operating knob 68 is integrally provided at the other end. And the locking body 6
5 is elastically biased toward the front side of the handle 6 by a spring 69, and the operating body 36 is disposed loosely inside the annular base 66, and the locking piece 67 is attached to the handle 6.
The operating knob 68 is made to protrude upward from the upper surface of the handle 6. A projecting piece 10 projects almost horizontally from the upper part of the back surface of the water tank 2, and the projecting piece 70 comes into pressure contact with the lower surface of the locking piece 67 based on the elastic force of the spring 22 in the valve mechanism 18. No days off 1
The water tank 2 is maintained against the

A water injection lower 2 is formed at the upper front surface of the water tank 2, and the entire front surface thereof is covered with a window frame 73. A water injection window 74 facing the water injection lower 2 is formed in the upper half of the window frame 73 #1, and a cover plate 75 is attached to the inner surface of the window frame 73 so as to be slidable up and down. Lid plate 75
A knob 76 integrally projects from the upper edge of the knob 76.
faces the front side of the window frame 73 through the water injection window 74. In addition, recesses 77 and 78 are formed on the back surface of the lid plate 75 at the upper and lower end portions, respectively, and a leaf spring 79 is provided at the middle portion of the front surface of the water tank 2. In Figure 6, the leaf spring 79 is the cover plate 75.
The cover plate 75 is held on the upper side of the window frame 73, and the water inlet 74 is elastically fitted into the recess 78 on the lower end side.
is blocked.

Next, the effect will be explained. When the operating body 36 is rotated via the operating knob 37 and the operating knob 37 is aligned with the "steam" position on the display plate 34, the heater 7 is energized. Also, as the operating body 360 rotates, the cam disk 35
The cam surface 3 rotates integrally with the cam surface 3.
Due to the height difference of 8.39 degrees, the interlocking rod 41 and the adjusting rod 44 are displaced upward [FIG. 7(a)]. And the leg joint 44
The setting operation for the temperature controller is performed by. The interlocking rod 41 rises as described above, but the opening and closing rod 31 is restrained by the regulating plate 50, so the opening and closing rod 31 does not rise at all, and the nozzle hole 32 remains closed. .

The temperature of the pace 3 gradually rises due to the energization of the Beef 2 F0, and when the temperature reaches a temperature sufficient to generate steam, the metal 48 senses this and reverses the temperature. This reversal of the bimetal 48 causes the response rod 49 and the regulating plate 50 to rise integrally against the spring 54.
The restraint of the opening/closing rod 3 by 0 is released, and as a result of this release, the opening/closing rod 31 is raised by the biasing force of the spring 53, and the nozzle hole 32 is opened (FIG. 7(b)).

By opening the nozzle hole 32, the water introduced into the water conductor 12 through the outlet 17 of the water tank 2 drips into the 11F1 primary evaporation chamber 8. Then, this water evaporates due to the heat of the pace 3 and becomes steam, which flows from the valve case 14 through the opening 13 into the diversion chamber 9 and directly into the guide chamber 10, and also from both chambers 9 and 10, respectively. It ejects through the holes 15, 16 to the underside of the pace 3. Here, the operation button 60 is pressed and the valve body 55 is opened. When the opening 13 is closed, the ejection of steam from the ejection hole 15 of the branch chamber 9 is stopped, and the steam is concentrated and ejected only from the ejection hole 16 of the guide chamber 10.

When the operation knob 37 is removed from the "steam" display position and set to the "medium temperature" display position, for example, the cam surfaces 38, 39
When pressed, the interlocking rod 41 and the adjusting rod 44 are respectively displaced downward. Then, by lowering the adjustment rod 44, the temperature controller is operated to maintain the temperature of the pace 3 at "medium temperature".

Further, as the interlocking rod 41 descends, the opening/closing rod 31 is pressed against the spring 53, and the nozzle hole 32 is closed, thereby stopping the ejection of steam [FIG. 7(C)]. When the temperature of the pace 3 falls below the temperature at the time of steam generation due to switching of the set temperature by adjusting the edge variation, the bimetal 48 reverses, and the response rod 49 and the regulating plate 50 are lowered by the biasing force of the spring 54. Opening/closing rod 3 by regulating plate 50
1 is restrained, and the closed state of the nozzle hole 32 is reliably maintained. Such an operation is performed using the operation knob 37 on the display plate 3.
The same is true when the display position is set to ``high temperature and low temperature'' in step 4.

In addition, when the operation knob 37 is set to the display position of 1゛STEAM'' on the display plate 34, for example, when the power supply to the heater 7 is cut off by pulling out the plug of the power cord from the indoor outlet, the pace As the temperature decreases, the bimetal 48 reverses, and regardless of the position of the operating knob 37, the opening/closing rod 3 is moved by the regulating plate 50 to the spring 53.
The nozzle hole 32 is forcibly pressed against the
Steam will stop blowing out. As long as the pace 3 is not kept at a temperature suitable for steam generation, the nozzle hole 32 will always be forcibly closed, and therefore the evaporation chamber 8
Water will not accumulate inadvertently.

When replenishing water in water tank 2, the water tank 2
To explain the procedure, first, hook the fingertip onto the operating knob 68 of the locking body 65 and release the locking body 65 from the spring 6911C.
Slide it to the other side of the handle '6' against the resistance. As a result of this operation, the locking piece 67 disengages from the protruding piece 70 of the water tank 2, and the elastic force of the spring 220 of the valve mechanism 18 causes the entire water tank 2 to float up as if it were a hop. It can be easily removed from the iron body 1. When the water tank 2 floats up, the elastic force of the spring 22 moves the valve element 21 toward the side where the outlet 17 is located, and the outlet 17 is closed by the valve element 21, so that water is discharged from the water tank 2. There is no leakage.

After removing the water tank 2 from the iron main body 1, hook the knob 76 of the lid plate 75 with your fingertips and pull the lid plate 75 downward to open the water filling window 74, and from this water filling window 74, the water filling lower 2 Water is replenished into the water tank 2 through the water tank 2. Lid plate 7
5 is pulled down, the leaf spring 79 separates from the recess 77 at the lower end of the cover plate 75 and fits into the recess 78 at the upper end, so that the lowering position of the cover plate 75 is reliably determined, and the water filling window 74 is opened. The condition becomes stable. In addition, the periphery of the cover plate 75 is the window frame 7.
Since the lid plate 75 is surrounded and protected by the peripheral wall 3, there is no chance of the lid plate 75 being accidentally damaged or deformed.

〔Effect of the invention〕

As explained above, according to the present invention, unless the base reaches the appropriate temperature for steam generation, water will not drip into the evaporation chamber, and therefore water will not accumulate in the evaporation chamber and corrode the base. Problems such as water droplets leaking from the bottom surface can be reliably solved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of the iron, Fig. 2 is a sectional view thereof, Fig. 3 is a partially exploded perspective view of the iron, and Fig. 4 is a perspective view of the display plate. Floor plan, 5th
The figure is a perspective view showing the window frame and the cover plate, FIG. 6 is a cross-sectional view showing a part of the attachment part of the cover plate, and FIG. 7 is an explanatory view of the operation. 8... Evaporation chamber, 30... Dripping nozzle, 31... Opening/closing rod, 36... Operating body, 48... Bimetal, 49
...Response rod, 50...Regulation plate. Applicant's agent Patent attorney Takehiko Suzue Figure 5 Figure 6

Claims (1)

[Claims] An evaporation chamber formed in the pace, a drip nozzle that drips water into the evaporation chamber, an opening/closing mechanism that opens and closes the drip nozzle, and a restraining mechanism that restrains the operation of the opening/closing mechanism and permanently closes the drip nozzle. A steam iron characterized by comprising a thermal response release mechanism that senses the temperature when the pace reaches an appropriate steam generation temperature and releases the restraint mechanism.