JPH046058Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an apparatus used for inverting a display panel of a cooking appliance or the like.

(Prior Art) Various devices have been devised to save space, such as devices for reversing display panels and devices for rotating display tubes. For example, as shown in FIG. 11, a drum 1 and a film 2 attached around the drum 1 and on which the cooking time is written,
Drum receivers 3 and 4 attached to both ends of the drum 1
Then, by operating knob 5, raise the front of drum 1.
It is composed of a pointer 6 that moves downward, an electric rotation control device 51 that is linked to a knob 5, etc., and a part of the large diameter part 7 of the drum receiver 4 protrudes outside the operation panel 22, and this part can be operated. A device for rotating the drum 1 by doing this is described in Japanese Utility Model Publication No. 57-5454.

However, in cookers equipped with this device, the knob for adjusting the electric rotation control device is attached to the drum (display section).
Since the operating section was provided separately from the rotating section, it was difficult to make the entire operating section compact.

(Problems to be Solved by the Invention) The present invention aims to provide a device that eliminates the above-mentioned drawbacks of conventional display devices and can make the operation unit more compact and simplify the operation. purpose.

(Means for Solving the Problems) The present invention employs the following configuration to achieve its purpose.

In other words, a rotational operation knob connected to an electrical rotation control shaft is faced to the opening of the operation panel, and by pressing the rotational operation knob, the front surface of the rotational operation knob and the surface of the operation panel are placed at approximately the same position. a push-button rotary operation knob that can be stopped at and extended to an operating position protruding from the surface of the operation panel by further pressing, and a rack is provided on the entire outer periphery of a part of the push-button rotary operation knob; It is characterized in that the display panel is reversed by transmitting the rotation of a gear meshing with the rack.

(Function) Since the present invention has the above-described configuration, even if the push-button rotation control knob undergoes angular displacement by operating the electric rotation control device, the transmission will not be cut off. When the push-button rotary operation knob moves back and forth (from the storage position to the operation position), the rack provided around the entire outer circumference of the push-button rotary operation knob moves back and forth, and the gear meshing with the rack rotates.
The display panel can be reliably reversed by gear transmission, and the operation knob of the electric rotation control device and the display panel reversal operation knob can be integrated.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view showing an embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing a gear transmission system in use, showing an embodiment of the present invention. FIG. 3 is a longitudinal sectional view showing an embodiment of the present invention in use and connected to an electric rotation control device.

As shown in FIG. 1, the display panel reversing device 9 according to the embodiment of the present invention includes an upper case 10 and a lower case 11.
Push-button rotary control knob 12 installed between
, two gears 14 and 15 rotatably supported between the lid 13 and the lower case 11, and three gears 1 rotatably supported between the lid 13 and the upper case 10.
6, 17, 18, and a lock plate 39 attached between the lid 13 and the upper case 10.

As shown in FIGS. 2 and 3, the push-button rotary operation knob 12 has a rotary operation knob 12 connected to the rotation control shaft 24 of the electric rotation control device 51 in the opening 23 of the operation panel 22. By pressing the rotation operation knob 12, the front surface of the rotation operation knob 12 and the surface of the operation panel 22 are stopped at approximately the same position, and by further pressing the rotation operation knob 12, the operation protrudes from the surface of the operation panel 22. It is a so-called push-push operation knob that can be extended to a certain position. As shown in the exploded perspective view of FIG. 4, the push/push operation mechanism adopted in the embodiment includes a hollow cylindrical main body 25, a sliding protrusion 26 provided inward within the main body 25, and , a hollow cylindrical mover 27 that slides back and forth within the main body 25.
and slides left and right (direction perpendicular to the axial direction) on a flat part 28 which is a part of the circumferential part of the mover 27,
It consists of a cam plate 29 having a cam 30 that is combined with the sliding projection 26, and a compression spring 33 held between a spring seat 31 provided in the main body 25 and a spring seat 32 provided on the slider 27. The slider 27 has a connecting hole 3 connected to the rotation control shaft 24.
4, two guide grooves 36 are provided on the flat portion 28 in the left-right direction for sliding on two protrusions 35 provided on the cam plate 29, and on the outer circumferential surface in the opposite direction to the flat portion 28. , compression spring 3 from inside the main body 25
In order to prevent the mover 27 from jumping out due to the repulsive force of the main body 25, a locking stage 38 is provided which is locked to a locking protrusion 37 provided on the inner circumferential portion of the main body 25. The main body 25 is press-fitted into a cylindrical lock button/operation knob 20 and is fixed integrally with the lock button/operation knob 2.
A rack 19 is provided on the rear outer circumferential surface of the vehicle 0 over the entire circumference. A gear 14 that meshes with the rack 19 is provided on the side of the rack 19, as shown in FIG. Since the rack 19 is provided around the entire circumference, the rotation angle for power transmission is not limited, and the push button/operation knob 20 can be used as one that can be rotated 360°. The gear 14 is a gear 1 provided above the gear 14 as shown in FIG.
It is integrally formed with an interval on the same axis as 5, and is rotatably supported between the lid 13 and the lower case 11. The gear 15 is provided at the upper part of the upper case 10 as shown in FIG. 2, and meshes with a gear 16 rotatably supported between the upper case 10 and the lid 13. There is. The gear 16
A gear 17 is stacked on the same axis on the upper part of the gear 17.
is also rotated. A gear 18 that meshes with the gear 17 is rotatably supported in front of the gear 17 (on the operation side) between the lid 13 and the upper case 10.
A fitting protrusion 41 provided at the top end of the rotating shaft 40 of this gear 18 and protruding from the top surface of the lid 13
However, the fitting hole 4 provided at the bottom of the display panel 21
It is mated with 2. Therefore, the power generated when the lock button/operation knob 20 moves back and forth is transferred from the rack 19 to the five gears 14, 15, 1.
6, 17, 18, and the display panel 2
1 can be reversed. Gears 16, 17,
A lock plate 39 is located between the upper case 18 and the upper case 10.
is provided. As shown in FIG. 5, lock pins 43 are vertically provided at both the upper and front corners of the lock plate 39, and protrude from the surface of the lid 13 through through holes 44 provided in the lid 13. The protruding tip is display panel 2
If external force is applied directly to the display panel 21 when the lock button/operation knob 20 is stopped and the display panel 21 is locked in the locking hole 45 provided in The structure is designed to prevent The gear 17 stacked on the gear 16 has a pair of fan-shaped notch holes 46, and a pair of transmission protrusions 4 provided on the top surface of the gear 16.
7 is inserted into the clutch. This fan-shaped notch hole 46 is provided with play in the rotational direction with respect to the transmission projection 47, so that the gear 1
Even when gear 6 rotates, the power is not immediately transmitted to gear 17 due to play due to backlash. The gear 16 also has a pair of cam projections 4 on its lower surface.
When the display panel 21 is at rest, the pair of cam protrusions 48 are fitted into partially occluded cam holes 49 provided in the lock plate 39, and when the gear 16 rotates, As shown in FIG. 5, one of the cam protrusions 48 is disengaged from the cam hole 49, causing the front part of the lock plate 39 to bend downward, and as a result, the tip of the lock pin 43 is positioned downward. Then, the display panel 21 is disengaged from the locking hole 45, and the display panel 21 and the lock pin 43 are unlocked. As mentioned above, the power of the gear 16 is not immediately transmitted to the gear 17, and the lock is released using the time delay.

Next, how to use the embodiment of the present invention will be explained with reference to FIGS. 6 to 9. 6 to 9 show the lid 13
FIG. 2 is a plan view of the device in use, with portions omitted.

FIG. 6 shows the state of the storage position when the push-button rotary operation knob 12 is not operated. In this state, the trapezoidal projection 26 of the push-button rotary operation knob 12 is locked to the locking portion 50 of the cam 29.
Further, the display panel 21 is locked by two lock pins 43 of the lock plate 39 and is in a stationary state. When the lock button/operation knob 20 is pressed from this state, the trapezoidal protrusion 26 and the locking portion 5 of the cam 30 are pressed.
0 is released and the lock button/operation knob 20 is released.
moves forward (in the direction of protruding from the surface of the operation panel 22), but this movement causes the easy 19
Since the gear moves forward, the gear 14 that meshes with the rack 19 rotates, and as the gear 14 rotates, the gear 15 integrally formed on the same axis as the gear 14 rotates.
The gear 15 rotates, but since the gear 15 has a larger diameter than the gear 14, the speed is increased. When the gear 15 rotates, the gear 16 that meshes with the gear 14 rotates, but the gear 17 that meshes with the gear 16 is stacked so as to be interlocked with the gear 16 with some play in the rotational direction. Transmission protrusion 4
The gear 17 does not rotate until the gear 7 moves from C to A. During this time, one of the cam protrusions 48 provided on the lower surface of the gear 16 that has already rotated comes off the cam hole 49 and touches the upper surface of the lock plate 39. When pressed, the front part of the lock plate 39 is bent downward as shown in FIG. 5, and the tip of the lock pin 39 is also moved downward, so that the rotational direction of the display panel 21 is unlocked. Therefore, after the lock is released, the gear 17 rotates, and this rotation causes the gear 18 meshing with the gear 17 to rotate, causing the display panel 21 to rotate 180 degrees, and eventually the operation panel 22 as shown in FIG. The push button/operation knob 20 moves from the position to the protruding operation position and stops. At this time, one cam protrusion 48 that had come out of the cam hole 49 returns to the cam hole 49 again, and the front part of the lock plate 39 elastically restores itself and returns to its original position, so that the tip of the lock pin 43 is attached to the display panel 21. The display panel 21 is locked again by being locked in the locking hole 45. When the lock button/operation knob 20 is pushed in to move it from the operating position shown in FIG. 8 to the storage position shown in FIG. 6, the rack 19 also moves rearward.
The gear 18 rotates in the opposite direction to the aforementioned movement from the storage position to the operating position, and the display panel 21 is also reversed. At this time, as described above, even if the gear 16 rotates as shown in FIG. 9, the gear 17 does not rotate until the transmission protrusion 47 moves from position A to position B. The rotation direction can be unlocked.

The present invention is not limited to the above embodiments. For example, the rotary operation knob for the pushbutton is
It may be of a push type structure, provided with a rack on the outer periphery for transmitting power to the gear, and of a structure that can be connected to the rotation control shaft of the electric rotation control device.

Furthermore, the means for providing play in transmission is not limited to the above-mentioned embodiment, and as shown in the explanatory diagram of the main part shown in FIG. 10, a gear 17' provided above the gear 16 on the same axis The gear 17' may have missing teeth so that the rotation is intermittently transmitted to the other shaft, and the lock can be released while the rotation of the gear 17' is not transmitted to the gear 18, as in the previous embodiment. In the case shown in FIG. 10, the gear 16 and the gear 17' can be integrally molded, so assembly is easy.
Cost reduction can be achieved.

(Effects) According to the present invention, by integrating and interlocking the push-button rotation knob connected to the electric rotation control shaft, which was conventionally separate, the panel and the reversing device,
The entire operation unit can be made compact, and the push/push operation and panel flipping operation, which conventionally had to be performed in separate operations, can be performed in one operation, simplifying the operation. Ta.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing a gear transmission system in use, showing an embodiment of the present invention. FIG. 3 is a longitudinal and transverse cross-sectional view showing an embodiment of the present invention in use and connected to an electric rotation control device.
FIG. 4 is an exploded perspective view of a part of the embodiment of the present invention. FIG. 5 is a longitudinal sectional view of the main parts of the embodiment of the present invention when the lock is released. 6 to 9 are plan views with the lid omitted to show how the embodiment of the present invention is used. Figure 7 shows the state when the push-button rotary operation knob is moving from the storage position to the operation position, Figure 8 shows the state when the push-button rotary operation knob is in the operation position, and Figure 9 shows the state when the push-button rotary operation knob is in the operation position.
This shows the state in which the push-button rotary operation knob is moving from the operation position to the storage position. Figure 10 shows
FIG. 6 is an explanatory view of the main parts of another embodiment of the present invention in use. FIG. 11 is a sectional view of a main part showing a conventional embodiment. 10 is the upper case, 11 is the lower case, 12 is the push button rotation control knob, 13 is the lid, 14, 15, 16, 1
7, 17', 18 are gears, 19 is a rack, 21 is a display panel, 22 is an operation panel, 23 is an opening,
24 is a rotation control shaft, 33, 59 is a compression spring, 39
is a lock plate, 41 is a fitting projection, 42 is a fitting hole, 43 is a lock pin, 44 is a through hole, 45 is a locking hole, 46 is a notch hole, 47 is a transmission projection, 48
49 is a cam hole, and 51 is an electric rotation control device.

Claims (1)

[Claims for Utility Model Registration] (1) A rotation operation knob connected to an electric rotation control device is exposed to the opening of the operation panel, and by pressing the rotation operation knob, the front surface of the rotation operation knob and the A push-button rotary operation knob is provided, which stops at a position substantially equal to the surface of the operation panel, and can be extended to an operation position protruding from the surface of the operation panel by further pressing. 1. A display panel reversing device, characterized in that a rack is provided on the entire outer periphery of the unit, and the display panel is reversed by transmission of the rotation of a gear meshing with the rack. (2) A means is provided to lock the display panel when the push-button rotary operation knob is stopped at the storage position and the operation position, and a clutch is provided in one of the two gear transmission systems to provide a delay in the transmission system. 2. The display panel reversing device according to claim 1, further comprising means for releasing the lock using the other transmission system during the delay.