JPS602482Y2 - oven roaster thermostat actuator - Google Patents

Description

[Detailed description of the invention] The present invention relates to a thermostat operating device for an oven roaster used for roasting bread pieces, hot dogs, kutskies, etc., and its purpose is to roast the roasted items. To provide a thermostat operating device for an oven roaster, which can set the roasting temperature according to the pivoting and switching operations of a switch lever, and can set the variable range of the roasting temperature over a wide range and in fine grains.

Hereinafter, details of an embodiment of the present invention will be explained with reference to the attached drawings. 1 is a mounting plate that is attached to a mounting wall 1a fixed to either the left or right side of a roaster main body (not shown); 2 is a mounting plate; 1. This scale display exterior plate 2 has a sliding hole 3 vertically formed therein.
In the vicinity of the switch are displayed indicators such as on/off, broil, toast, etc., and scales indicating each roasting temperature in baking.

4 is a cover, and 5 is a switch lever. The switch lever 5 has a small width portion 5a provided at one end thereof loosely inserted into the sliding hole 3, and a button 6 is attached to the outer end.

Reference numeral 7 denotes a mounting piece fixed to the mounting plate 1, and this mounting piece 7 is divided into an upper part 7a and a lower part 7b.
A slide hole 8 is bored in the hole.

Reference numeral 9 denotes a link having one end pivotally connected to the mounting plate 1 through a shaft 10 and the other end pivotally connected to the other end of the switch lever 5 through a pin 11. It is loosely inserted into.

Reference numeral 12 denotes a guide pin protruding from the inside of the switch lever 5, and the guide pin 12 is loosely inserted into a slit hole 13 diagonally provided in the mounting plate 1.

14.15 is the shaft 16a, 16b attached to the mounting piece 7 and the mounting plate 1.
The cam disc 14 is a cam disc that is pivoted oppositely at the cam disc 14.
, 15 are provided with engagement holes 17 and 18, respectively, and by inserting an engagement rod 19 penetrating the front and rear surfaces of the switch lever 5 into the engagement holes 17 and 18, the switch lever 5 can be moved. The cam disks 14 and 15 are rotatable when pivoted.

20a, 20b, 21a, 21b are the cam discs 14.15
Of these, one pair of recessed recesses 20a and 20b are provided at corresponding positions, and the other pair of recessed recesses 21a and 21b are formed at shifted positions.

Reference numerals 22a and 22b are pivot plates that are pivotally connected below the mounting piece 7 by a shaft 23, and the pivot plates 22a and 22b are independently pivotable.

24a, 24b are spring contact pieces with one end fixed to the lower surface of the pivot plates 22a, 22b.
One end of the sub switch S□ is fixed in parallel to the mounting plate 1.
, S2 push buttons 25a and 25b can be pressed freely.

Reference numerals 26ay and 26b are retaining pins that are provided oppositely protruding inside the pivot plates 22a and 22b, and these engaging pins 26a and 26b are adapted to come into sliding contact with the circumferential surfaces of the cam discs 14 and 15.

27 is a relay frame whose lower end is pivotally connected to the mounting plate 1 by a shaft 28, and the upper surface 27a of this relay frame 27 is always in contact with the engagement pin 2.
It is in contact with either or both of 6a and 26b.

Reference numeral 29 denotes a pivot frame with an oval shape on the side, and this pivot frame 29 is pivotally connected to the relay frame 27 at a substantially middle position by a shaft 30, and a spring contact piece 31 is fixed to one end of the pivot frame 29. There is.

The other end of this contact piece 31 can press down a push button 32 of a main switch S fixed to the mounting plate 1.

33 is pivotally connected to the mounting wall 1a etc. by a shaft 34, and its upper end is pivotally connected to the connecting portion 29a of the pivot frame 29 by a shaft 35,
A link 37 whose lower end is given a tensile force by a spring 36 whose one end is fixed to the mounting wall 1a, has a guide pin 38 projecting outward and whose tip is pivotally connected to the link 40 by a shaft 39, The rear end of the push rod is provided with a cam portion 41, and this push rod 37 connects the guide pin 38 to the mounting wall.
It can be moved back and forth by inserting it into a slit hole 42 drilled in a.

The tip of the link 40 is pivotally connected to one side of a door 43 which can be opened and closed in a roaster body (not shown) by a shaft 44.

Moreover, the circumferential surface of the cam portion 41 pushes up the protruding portion of the shaft 35.

45 is a link whose one end is pivotally connected to the switch lever 5 by a shaft 46 and the other end is pivotally connected to a shaft 47 by a link 48; 49 is a rotor; this rotor 449 is connected to the mounting portion 49a;
By inserting the shaft 47 into a long hole 50 drilled in the shaft 47, the shaft 47 is pivotally connected coaxially with the pivot joints of the links 45 and 48.

Reference numeral 51 denotes a drive shaft fixed to the rotor 49, and this drive shaft 51 is connected to the temperature setting rotation shaft of the thermostat x.

52 is a shaft for pivotally connecting the other end of the link 48 to the mounting plate; H□, H2, H3, and H4 are heaters arranged at the upper and lower stages of the roaster main body (not shown), respectively; T is a sub-shaft; This is a timer switch connected in parallel to switch S2.

Note that the same parts are indicated by the same reference numerals in each figure.

One embodiment of the present invention has the above-mentioned structure, and the door 43 is opened to place objects to be roasted, such as pieces of bread, hot dogs, and cookies, into the main body of the roaster (not shown). Of course, it is possible to open the door 43 to store the roasted material in the main body of the roaster, but when the door 43 is opened, a link 40 whose tip is pivotally attached to one side of the layer 43 and a shaft attached to the link 40 are opened. The push rod 37 pivotally mounted at 39 slides while being guided by a guide pin 38 protruding inwardly through a guide hole 42 formed in the mounting wall 1a.

Therefore, the cam portion 41 provided at the rear end of the push rod 37 is connected to the link 33 which is pulled around the shaft 34 by the spring 36.
and the connecting portion 29a of the pivot frame 29 are separated from the protruding portion of the shaft 35 which is pivotally connected to the connecting portion 29a of the pivot frame 29.

When the door 43 is closed after storing the bread pieces and other roasted items in the main body of the roaster, the link 40 whose tip is pivoted to one side of the door 43 and the push rod pivoted to the link 40 are opened. 37 retreats as the door 43 closes, so that the cam portion 41 slightly pushes up the shaft 35 with its peripheral surface.

At this time, the pivot frame 29 pivots downward on the side on which the contact piece 31 is attached about the shaft 30, so that the bottom surface of the tip of the contact piece 31 is in contact with the push button 32 of the main switch S.

The upper surface 27a of the relay frame 27, whose lower end is pivotally connected to the mounting plate 1 by the ring 30 on the other side, is connected to the engaging pins 26a, 26b that protrude oppositely inside the pivot plates 22a, 22b. The engagement pin 26a contacts the lower surface.

26b is a concave notch 20a provided on the circumferential surface of the cam disk 14.15.
, 20b.

Thus, by pivoting the switch lever 5 slightly upwards,
A guide pin 12 protruding from the inside of this switch lever 5 slides in a slit hole 13 diagonally provided in the mounting plate 1, and the other end of the switch lever 5 is provided in the lower part 7b of the mounting piece 7. Pivotally mounted in the slide hole 8 by a shaft 11, and this shaft 1
1 has one end of a link 9 pivotally connected to it, and the other end of the link 9 is pivotally connected to the mounting plate 1 by a shaft 10. The link 9 pivots with a clearance at its end, and at the same time, the link 9, which has one end pivoted to the shaft 11 and the other end pivoted to the mounting plate 1, also pivots.

When the switch lever 5 is aligned with the ON scale on the scale display plate 2, the engagement rod 19 penetrating the front and rear surfaces of the switch lever 5 engages the engagement holes 17, 18 of the cam discs 14, 15.
As the switch lever 5 pivots, the cam disks 14 and 15 move in the direction of the arrow A as the switch lever 5 pivots.
It rotates around 6b.

When the cam disks 14 and 15 rotate in this manner, the pivot plates 22a, which were engaged with the recessed portions 20aw20b as described above,
22b engagement pin 26a.

26b are spring contact pieces 24a which are ejected from the recessed portions 20a and 20b and pushed down onto the outer peripheral surface of the cam disc 14 and 15, and are therefore fixed to the lower surfaces of the pivot plates 22a and 22b; 24b is elastically connected to the sub switch St.
By pressing the push buttons 25a and 25b of y32, the sub switch S1. Turn on S2.

Moreover, the relay frame 27 whose upper surface is in contact with the lower surface of the engagement pins 26a and 26b is a pivot plate 22a.

As the engaging pins 26a, 26b of 22b descend, the shaft 23 also pivots downward, so the pivot frame 29, which is pivotally connected to the relay frame 27 by the shaft 30, also pivots together. As mentioned above, the shaft 35 in the connecting portion 29a is connected to the push rod 3.
7, the contact piece 31 presses down the push button 32 of the main switch S.

Therefore, the main switch S and the sub switch S□.

Both the heaters S2 and S2 are turned on, and the heaters H1, H2; H3, H, disposed within the roaster body generate heat to roast the non-roasted material.

Then, when the switch lever 5 is pivoted continuously with the above operation to match the appropriate roasting temperature in the bay of the scale display exterior plate 2, one end is pivoted to the switch lever 5 by the shaft 46. a link 45 that is connected to
8 pivot respectively about axes 46, 52 following the pivoting of the switch lever 5.

When the links 45 and 48 pivot as described above, the pivot pin 47 of the rotor 49 is engaged in the elongated hole 50, causing the rotor 49 to pivot significantly around the drive shaft 51, thereby controlling the temperature of the thermostat x within the roaster body. The variable range can be set over a wide range, and the wood grain can be set finely, and when the roaster itself is heated above the predetermined roasting temperature, the thermostat : Temperature can be adjusted.

Next, when the switch lever 5 is pivoted to match the broil scale on the scale display exterior plate 2, the cam disc 14.
7 and 18, the engagement pin 26a pivots about the shafts 16a and 16b, and therefore the engagement pin 26a, which was pressed down on the outer peripheral surface of the cam disc 14, falls into the recessed notch 21a of the cam disc 14. As a result, the spring contact piece 24a releases the push button 25a of the sub-switch S□, and the sub-switch S1
1 is in the off state, and the lower heaters H3 and H1 go out.

At this time, the engagement pin 26b is in a pressed state on the outer peripheral surface of the other cam disk 15, and the spring contact piece 24b is pressing the push button 25b of the other sub-switch S2, so this sub-switch S2 is still on. state, and the main switch S
are turned on by the contact piece 31, and only the upper heaters H□ and H2 in the roaster main body (not shown) generate heat to perform broiling.

Further, by pivoting the switch lever 5, the scale display exterior plate 2
When the toast is displayed, the engagement pin 26a, which had fallen into the recessed part 21a of the cam disc 14, is ejected from the recessed part 21a and is pressed against the outer peripheral surface of the cam disc 14, thereby making contact again. The piece 24a presses the push button 25a of the sub-switch S1, and the sub-switch S□ is turned on, and at the same time, the engagement pin 26b falls into the recessed part 21b of the other cam disc 15, thereby pressing the push button 25a of the sub-switch S1. S2
The press of the push button 25b by the contact piece 24b is released, and the sub-switch S2 is turned off, contrary to the previous state. By setting the timer switch T in this state, toasting can be performed within a certain period of time.

As described above, one embodiment of the present invention allows the roasting temperature for roasting the object to be roasted to be set according to the pivoting and switching operations of the switch lever. This has the effect of allowing detailed settings.

[Brief explanation of the drawing]

Fig. 1 is a cutaway sectional view showing an embodiment of the present invention, Fig. 2 is a plan view of the main parts, Fig. 3 is a view taken along the ■-■ arrow in Fig. 1, and Fig. 4 constitutes the present invention. FIG. 1...Mounting plate, 5...Switch lever, 45°48...Link, 47...Curved shaft, 49
...Rotor, 50...Long hole, 51...
...Drive shaft.

Claims (1)

[Scope of utility model registration request] One end of a switch lever with a button extending outside the door of the oven roaster main body is pivotally connected to a mounting piece fixed to a mounting plate inside the oven roaster main body, and the other end of the switch lever is pivotally connected to the switch lever. One end of the link is pivotally connected to the mounting plate, and the other end of the other link is pivotally connected to the same shaft, and the shaft is loosely fitted into a long hole drilled in the mounting portion of the rotor, and the other end of the link is pivotally connected to the mounting plate. A drive shaft connected to the temperature setting rotation shaft of the thermostat is fixed, a recess is formed in a pair of cam disks that respond to the swinging of the switch lever, and the engagement is engaged and disengaged from the recess respectively. A pair of pivoting plates having pins are provided with contact pieces for operating respective opening/closing switches of the heater and timer contacts, and a contact piece for operating the power supply opening/closing switch is provided on a pivoting frame pivotally attached to the pivot shaft of the pivoting plates. An operating device for a thermostat of an oven roaster, characterized in that a piece is provided.