WO2009062401A1

WO2009062401A1 - Combined knob

Info

Publication number: WO2009062401A1
Application number: PCT/CN2008/001853
Authority: WO
Inventors: Jiebo Hu
Original assignee: Jiebo Hu
Priority date: 2007-11-15
Filing date: 2008-11-07
Publication date: 2009-05-22
Also published as: CN101430982A; CN101188172A; CN101430982B

Abstract

A combined knob comprises a knob seat (1). An axle sleeve (14) is provided under the knob seat (1), which is cooperated with the axial center of a switch or a timer. The combined knob also comprises a knob window loop (2) that is transparent and has a hole (21) in the middle of it. A protuberance (11) is installed on the knob seat (1) and the protuberance (11) is inserted to the hole (21) of the knob window loop (2) resulting in the knob seat (1) and the knob window loop (2) integral.

Description

Combination knob

The present invention relates to a knob, and more particularly to a knob mounted on a rotating shaft of a control part such as a switch or a timer. Background technique

With the improvement of people's living standards, the consumer market for home appliances has also been greatly developed. Each home appliance without remote control can not be separated from the control parts such as switches and timers. Each control part usually includes a control part body and a knob. The control part body is provided with a shaft core, and the lower part of the knob is provided with a shaft. The sleeve is placed over the shaft core through the sleeve and the shaft core. When used, the shaft can be rotated by rotating the knob, and then the switch can be controlled to be turned on or off and the timer can be operated regularly.

In order to facilitate the operation, the above knobs are often located in the conspicuous position of home appliances. However, the structure of such knobs is relatively monotonous and the style is old. In the face of the highly competitive home appliance market, the knobs installed in many products cannot play a finishing touch. It is not conducive to improving the grade of the entire product, does not help the sales of the product, and ultimately makes it difficult for the enterprise to obtain a considerable return on benefits. Summary of the invention

The technical problem to be solved by the present invention is to provide a combination knob which is simple in structure, low in cost, and capable of improving product grades in view of the above-mentioned state of the art.

The technical solution adopted by the present invention to solve the above technical problems is as follows: The combination knob includes a knob seat, and a sleeve disposed in a lower portion of the knob seat is matched with a switch or a timer core, and is characterized in that: a window ring having a through hole in the middle, the upper portion of the knob seat has a protrusion, and the protrusion is inserted into the through hole of the window ring to connect the knob seat and the window ring into one body.

In the above solution, a pattern layer may be disposed between the lower surface of the window ring and the upper surface of the knob base; the pattern layer may have the following structure: that is, the lower surface of the window ring or/and the lower surface of the window The upper surface of the corresponding knob base is designed as a rugged three-dimensional texture; or the pattern is directly drawn on the lower surface of the window ring or/and on the upper surface of the knob base. Alternatively, a patterned lining can be placed between the lower surface of the window ring and the upper surface of the knob base, so that the type of the knob can be varied to meet the needs of different appliances.

In the above various schemes, the upper surface and the side surface of the window ring are designed as a smooth transition structure to become a convex curved surface, that is, a smooth transition structure can be designed between the upper surface of the window ring and the outer side surface thereof, or the upper surface of the window ring A smooth transition structure is formed between the inner side surface of the through hole, or a smooth transition structure is formed between the upper surface of the window ring and the outer side surface thereof, the upper surface of the window ring and the inner side surface of the through hole, so that the operation is good. The hand feel makes the window ring have a convex lens effect, so that the pattern or pattern underneath is visually magnified. This

- 1 - Confirmation The top of the protrusion may be designed as a curved surface or a plane that smoothly engages the convex curved surface, so that the outer surface of the entire combination knob has a circular arc structure. Of course, the top of the protrusion may also be higher than the convex surface or lower than the convex surface.

As a further improvement of the present invention, a positioning post may be disposed on the lower surface of the window ring, and a positioning hole for inserting the positioning post is formed on the knob base, and the positioning post and the positioning hole are matched. The window ring can be quickly and accurately positioned on the knob base while preventing the window ring from rotating and slipping relative to the knob base.

Preferably, the diameter of the positioning post is designed to be smaller than the diameter of the positioning hole, so that the two can be tightly fitted together by pressing hard.

In order to visually see the rotation of the switch or the timer, an indication mark indicating the rotation of the switch or the timer may be provided on the combination knob, and the indication mark may be formed by the end shadow of the positioning post seen from the perspective of the window circle. . It may also be an indicator mark different from the end of the positioning post, which may be located on the upper surface of the window ring, or on the lower surface of the window ring, or simultaneously on the upper and lower surfaces of the window ring to meet different Product selection.

In the above solution, the lower surface of the window ring and the upper surface of the knob seat corresponding to the lower surface of the window ring may be a curved surface matching, or may be a diagonal surface matching, so that the three-dimensional texture and the pattern after the perspective effect better.

In the above solution, the protrusions may be designed in various shapes, that is, a prism having a polygonal cross section or a boss having a petal-like structure in cross section, but preferably designed as a circular table, and the through hole is designed to be The tapered hole of the round table is matched with the interference, which is convenient for processing and demoulding.

The interference fit between the circular table and the tapered hole can be achieved by: the inner side surface of the tapered hole and the outer surface of the circle, the table can have the same inclination, and the lower port diameter of the tapered hole is smaller than The diameter of the lower bottom of the truncated cone is mounted by a special tool during installation. At this time, under the action of external force, the taper hole on the window ring will increase or the outer side of the truncated cone will be reduced. When the truncated cone is inserted into the taper hole After that, the inner surface of the tapered hole is fastened to the outer surface of the circular table; or the inner side of the tapered hole has a smaller inclination than the outer side of the circular table, and the lower port of the tapered hole has a smaller diameter than the The lower bottom diameter of the circular table, after assembly, the interference between the lower port of the tapered hole and the lower bottom surface of the circular table; or the inner side slope of the tapered hole is larger than the outer side slope of the circular table, and the cone The upper port aperture of the hole is smaller than the upper base diameter of the circular table, and the axial length of the tapered hole is smaller than the height of the circular table. After assembly, the upper port of the tapered hole and the upper bottom surface of the circular table can be interference fit.

Compared with the prior art, since the invention adopts a transparent window ring structure, not only does it have a beautiful visual shape, but also can be applied to different instruments by setting different patterns and patterns under the window ring. If the pattern is a clock-type structure, it is suitable for a timer, such as a gear-type structure, which is suitable for a gear switch (such as a fan switch, temperature adjustment, etc.), so that the type of the knob becomes rich and colorful. Possible; at the same time, by using the convex lens function of the convex curved surface of the window ring, the pattern or pattern located under the window ring is visually magnified, so that the rotation of the combination knob (or the consumer is located in different directions) , you can see the changing, magnified cube-like pattern, especially when the pattern located under the window is made by the window itself. When the lower surface or/and the uneven surface of the upper surface of the knob base are formed, the crystal circle-like perspective effect is produced by the refraction of the window ring having the convex lens effect. Therefore, the present invention enables a consumer to enjoy a pleasing and magnified pattern in the process of using the electrical product, thereby bringing happiness to the consumer and providing a finishing touch to the product, and contributing to the improvement of the product grade and Competitiveness, at the same time, the combination knob has a simple structure and low cost. In the actual trial installation, it has achieved unexpected technical effects, and thus it is worthy of being promoted and applied in various home appliances. DRAWINGS

1 is a schematic perspective view of a first embodiment of the present invention;

Figure 2 is a front view of Figure 1 (three-dimensional effect diagram after perspective enlargement);

Figure 3 is an exploded perspective view of Figure 1;

Figure 4 is a rear perspective view of Figure 1;

Figure 5 is an exploded perspective view of Figure 4;

Figure 6 is a cross-sectional view showing a first embodiment of the present invention;

Figure 7 is a cross-sectional view of the knob holder and the window ring of Figure 6 after separation;

Figure 8 is a schematic view showing the structure of the convex top portion of Figure 1 above the upper surface of the window ring;

9 is a schematic structural view of the indicator mark on the lower surface of the window ring in the second embodiment of the present invention;

Figure 10 is a side sectional view of Figure 9;

11 is a schematic structural view showing the indication mark on the convex arc surface of the window 实施 in the third embodiment of the present invention; FIG. 12 is an indication mark on the convex arc surface of the window ring in the fourth embodiment of the present invention, and is provided on the lower surface of the window ring according to the fourth embodiment of the present invention; Schematic diagram of the positioning column;

13 is a schematic structural view of a three-dimensional texture in Embodiment 7 of the present invention;

14 is another schematic structural diagram of a three-dimensional texture in Embodiment 7 of the present invention;

Figure 15 is a schematic structural view of Embodiment 8 of the present invention;

16 is another schematic structural diagram of Embodiment 8 of the present invention;

Figure 17 is a schematic structural view of Embodiment 9 of the present invention. detailed description

The invention will be further described in detail below with reference to the embodiments of the drawings.

Embodiment 1 As shown in FIG. 1 to FIG. 6 , the combination knob is composed of a knob base 1 and a window ring 2 , wherein a lower portion of the knob base 1 is provided with a sleeve 14 matched with a switch or a timer core, and a knob The upper portion of the seat has a projection 11 which is designed as a circular table. The window ring 2 is injection molded from a transparent plastic, such as a transparent ABS or a transparent PC, such as a sturdy strength engineering plastic, and a through hole 21 is formed in the middle of the perspective ring, and the through hole 21 is designed to be opposite to the circular table on the knob base 1. A tapered hole with an interference fit. At the same time, the upper surface of the knob base corresponding to the lower surface of the window ring is designed to be uneven The three-dimensional texture, where the lower surface of the window ring and the upper surface of the knob seat corresponding to the lower surface of the window ring are all designed as a plane matching structure, and the three-dimensional lines are evenly distributed with small squares 12, see FIG. . During assembly, the protrusion 11 is inserted into the through hole 21 of the window ring, so that the knob base 1 and the window ring 2 are integrally connected. Thus, after assembly, the three-dimensional texture on the knob base 1 can be seen through the transparent window ring 2, and as the combination knob is rotated, a magnified enlarged image can be seen, see Fig. 2.

In this embodiment, the interference fit between the circular table and the tapered hole is achieved by the following manner: The inner side surface d of the tapered hole and the outer side surface D of the round table have the same inclination, and the lower port aperture Φ of the tapered hole is slightly smaller than The bottom diameter of the round table is ΦΧ1, please refer to Figure 7. When installing, use special tools to force the through hole of the window ring to align with the protrusion and press down hard. At this time, the through hole will increase, so that the window ring is fastened. The protrusion of the knob seat.

In order to prevent the above-mentioned window ring from being sleeved on the knob base, the two sides are relatively slidably rotated, and a positioning post 22 is further disposed on the lower surface of the window ring, and a positioning hole 13 for inserting the positioning post 22 is opened on the knob seat, and the positioning is performed. The diameter of the column is also slightly smaller than the diameter of the positioning hole so that the two are closely matched. Referring to Figures 4 to 7, such a structure is also advantageous for accurate installation and positioning of the two.

In order to make the pattern seen have a better effect, here, the upper and the outer side of the window ring are rounded excessively to become the convex curved surface 23, and the window ring has the function of a convex lens. At the same time, considering that the invention is often touched by the consumer, the top of the protrusion is designed to smoothly engage the curved surface 15 of the convex curved surface 23, see Figures 6 and 7, so that the entire combination knob The outer surface is a circular arc structure, which makes the handle feel better. It is of course also possible to design the top of the projection to be planar. Or the top of the bump is higher than the convex curved surface, as shown in Figure 8.

In order to visually see the direction of rotation of the combination knob, an indicator mark is further provided on the combination knob. In the embodiment, the indicator mark is formed by the end of the positioning post 22 seen from the perspective of the window ring 2, That is, the end of the positioning post is seen as an indicator mark, which fully utilizes the function of the positioning post, making the structure simpler and more compact. Embodiment 2, as shown in FIG. 9 and FIG. 10, which differs from Embodiment 1 described above in that: the positioning hole in the window ring and the positioning hole on the knob seat are removed, and the indicator mark 24 is located on the lower surface of the window ring 2. on. In this embodiment, the indicator mark is designed in a triangular configuration. Of course, it can also be designed as a clock-type structure or as a gear-type structure. Embodiment 3, as shown in FIG. 11, is different from Embodiment 2 described above in that: the indication mark 24 is located on the convex curved surface 23 of the window ring, and such a structure can also achieve the indication purpose. Embodiment 4, as shown in FIG. 12, is different from Embodiment 1 described above in that: the indication mark 24 is provided on the convex arc surface 23 of the window ring. That is, in the case where the positioning post 22 is provided on the lower surface of the window ring 2, the indicator mark 24 is additionally provided on the outer convex curved surface 23. Embodiment 5, refer to FIG. 7, which differs from Embodiment 1 described above in that: an interference fit between the tapered hole and the circular table is achieved by using different structures, that is, the inner side d of the tapered hole has a smaller inclination than the outside of the circular table. The side D slope, and the lower port aperture Φ of the tapered hole is slightly smaller than the lower bottom diameter Φ Χ 1 of the circular table, so that the lower peripheral surface of the circular table and the lower port aperture of the tapered hole are interference fit, so as to achieve the purpose of tight fitting. Embodiment 6, please refer to FIG. 7, which differs from Embodiment 1 described above in that: different structures are used to achieve an interference fit between the tapered hole and the circular table, that is, the inner side d of the tapered hole has a larger inclination than the outside of the circular table. The side D slope, and the upper port aperture Φ of the tapered hole is slightly smaller than the upper bottom diameter Φ Υ 1 of the truncated cone, and the axial length H of the tapered hole is smaller than the height HI of the truncated cone. With such a scheme, the window ring and the knob seat can also be realized. The purpose of the tight fit. The seventh embodiment, as shown in FIG. 13, is different from the above-mentioned first embodiment in that: a combined three-dimensional texture, that is, a lattice pattern 25 in the three-dimensional routing fan-shaped region and a circular line 26 are arranged at intervals, and the combined three-dimensional texture is formed. Set on the lower surface of the window ring 2. Of course, the combined three-dimensional texture may also be located on the upper surface of the knob base corresponding to the lower surface of the window ring, or may be simultaneously disposed on the lower surface of the window ring and the upper surface of the knob base. Alternatively, other different texture structures, such as the circular pattern shown in Figure 14, can be used. Embodiment 8 is different from Embodiment 1 described above in that: a curved surface is fitted between a lower surface of the window ring and an upper surface of the knob holder corresponding to the lower surface of the window ring, as shown in FIG. 15 and FIG. Through the change of the curved surface, the pattern seen from the upper surface of the window ring is more pleasing to the eye. The ninth embodiment differs from the first embodiment in that: a lower surface of the window cymbal and an upper surface of the knob base corresponding to the lower surface of the window ring are inclined, as shown in FIG. The change in the inclination can be seen from the upper surface of the window ring. In addition to the above embodiments, the present invention may directly draw a pattern on the lower surface of the window ring or/and on the upper surface of the knob base; or may be provided with a patterned liner between the lower surface of the window ring and the upper surface of the knob base. This makes the combination knob more abundant to meet the needs of different consumers.

Claims

Rights request

1. A combination knob, comprising a knob seat (1), and a sleeve (14) matched with a switch or a timer core is arranged at a lower portion of the knob seat, and is characterized in that: a transparent middle portion is opened a window ring (2) of the hole (21), the upper portion of the knob seat has a protrusion (11), and the protrusion (11) is inserted into the through hole (21) of the window ring to make the knob seat C1) is integrated with the window ring (2).

The combination knob according to claim 1, characterized in that: a pattern layer is disposed between the lower surface of the window ring (2) and the upper surface of the knob base (1).

3. The combination knob according to claim 2, wherein the pattern layer has the following structure: a lower surface of the window ring (2) or/and a knob upper surface corresponding to a lower surface of the window ring Designed as a bumpy three-dimensional texture.

The combination knob according to claim 1, characterized in that: a patterned lining is interposed between the lower surface of the window ring (2) and the upper surface of the knob base (1).

The combination knob according to claim 1 or 2 or 3 or 4, characterized in that: the window ring (2) has a smooth transition between the surface and the side surface to form a convex arc surface (23).

The combination knob according to claim 5, characterized in that: the top of the protrusion (11) is designed as a curved surface or a plane that smoothly engages with the convex curved surface (23).

The combination knob according to claim 1 or 2 or 3 or 4, wherein: the lower surface of the window ring (2) is provided with a positioning post (22), and the knob base (1) A positioning hole (13) for inserting the above positioning post is opened.

8. The combination knob according to claim 7, further comprising: an indication mark indicating that the switch or the timer is rotated.

9. Combination knob according to claim 8, characterized in that said indicator mark is formed by an end shadow of said positioning post (22) as seen from the perspective of said window ring.

10. A combination knob according to claim 8, wherein: said indicator mark (24) is located on at least one of the upper surface and the lower surface of said window ring.

The combination knob according to claim 1 or 2 or 3 or 4, characterized in that: the lower surface of the window ring (2) and the upper surface of the knob base (1) corresponding to the lower surface of the window ring There is a mating or beveling fit between them.

The combination knob according to claim 1 or 2 or 3 or 4, wherein: the protrusion (11) is a truncated cone, and the through hole (21) is an interference fit with the truncated cone. Cone hole.

The combination knob according to claim 12, wherein the interference fit of the circular table and the tapered hole is achieved by: an inner side surface (d) of the tapered hole and an outer side surface (D) of the circular table Having the same slope, and the lower port aperture (ΦΧ) of the tapered hole is smaller than the lower bottom diameter (ΦΧ1) of the circular table; or the inner side (d) of the tapered hole has a smaller inclination than the outer side of the circular table (D) the slope, and the lower port aperture (Φ Χ) of the tapered hole is smaller than the lower portion of the circular table a bottom diameter (ΦΧ1) _; or the inner side surface (d) of the tapered hole has a slope greater than an outer side (D) slope of the circular table, and the upper port aperture (ΦΥ) of the tapered hole is smaller than the round table The diameter of the upper base (ΦΥ1), while the axial length of the tapered bore (Η is smaller than the height of the round table (Hl).