KR20060033618A - A push-pull type knob assembly - Google Patents

Abstract

The present invention relates to a knob assembly of the push-pull type. According to the present invention, the switch 30 is installed on the substrate 23, the output is adjusted according to the rotation of the shaft 31, the base member 40 is fitted to the shaft 31, and the base member ( The driving member 50 is moved along the axis 40 in the axial direction and the rib 53 is provided on the inner circumferential surface, and the base member 40 is supported to be moved in a direction perpendicular to the moving direction of the driving member 50. A locking member 60 for selectively fixing the ribs 53 as the drive member 50 moves forward and backward, and is provided at the tip of the locking member 60 and exposed to the outside through the front panel 20. The knob 80 and one end is supported by the base member 40 and the other end is supported by the driving member 50 to include a spring 70 for imparting an elastic force to the forward and backward driving of the driving member 50. It is configured by. According to the present invention, the knob 80 is selectively protruded to the front panel 20 in a push-pull manner, thereby implementing various designs of electronic products.

Knob, Push-Pull, Shaft

Description

A Push-Pull Type Knob Assembly

1 is a cross-sectional view showing a conventional knob structure.

Figure 2 is a side view showing a mounting state of a preferred embodiment of the push-pull knob assembly according to the present invention.

3 is an exploded perspective view showing the configuration of one surface according to an embodiment of the present invention.

Figure 4 is an exploded perspective view showing the configuration of the other surface according to an embodiment of the present invention.

Figure 5 is a perspective view showing the configuration of the locking member according to an embodiment of the present invention.

6A is an operational state diagram showing a state in which the knob is advanced in the embodiment of the present invention.

Figure 6b is an operating state diagram showing a state in which the knob is reversed in the embodiment of the present invention.

Figure 7 is a block diagram showing the relationship between the locking member and the rib according to the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

20: front panel 30: switch

31 shaft 40 base member

41: base flange 43: base body

43a: longitudinal guide portion 43b: lateral guide channel

43c: step portion 43d: hook engaging portion

50: drive member 51: longitudinal guide channel                 

53: rib 55: hook

57: support flange 60: locking member

61: rib guide portion 63: rib locking portion

65: side guide part 70: spring

80 knob

The present invention relates to knobs and, more particularly, to a push-pull knob assembly that regulates the output of electronics by rotation.

1 shows a mounting state of a conventional knob in cross section.

As shown in the figure, the knob 2 is provided in the front panel 10 of, for example, an audio device. This knob 2 is operated in conjunction with the shaft 8, to operate the switch 6 connected to the rear of the shaft (8). The switch 6 performs a function of adjusting a volume of an audio device by performing a function of a variable resistor, for example, and is installed on a substrate 12 inside a product.

And the support ring 4 is fastened to the inner peripheral surface of the mounting hole formed in the front panel 10, the knob 2 is provided through the hole formed in the center of the support ring (4).

Looking at the coupling relationship between the knob 2 and the shaft 8, a fastening boss 2a to which the shaft 8 can be fitted is formed on the rear surface of the knob 2. The shaft 8 is fitted to the fastening boss 2a. The fastening boss 2a of the knob 2 is forcibly fitted to the shaft 8 so that the knob 2 is not detached by an external force. And the knob 2 is supported.

However, the prior art as described above has the following problems.

That is, the knob 2 is in the protruding state on the front panel 10, there is a problem that can not effectively cope with various design changes caused by the advanced design of electronic products.

Since the knob 2 protrudes, there is a problem that an unintended operation may be applied to the knob 2 while adjusting or selecting another function of the electronic product.

In addition, the protruding knob 2 may accumulate foreign matters such as dust, so that continuous cleaning may be required. If the knob 2 is rotated during cleaning, there is a problem that the volume and the like must be set again when the electronic product is played.

The present invention is to solve the above conventional problems, it is an object of the present invention to provide a push-pull knob assembly of the knob selectively protrudes on the front panel.

It is a further object of the present invention to provide a push-pull knob assembly in which the tip is inserted into the front panel such that the tip is positioned almost flush with the front panel when the knob is not used.

According to the present invention for achieving the above object, the switch is installed on the substrate and the output is adjusted according to the rotation of the shaft, the base member is fitted to the shaft, and moved along the base member in the axial direction and the ribs on the inner peripheral surface A driving member provided to the base member and supported by the base member to be moved in a direction orthogonal to the moving direction of the driving member to selectively fix the ribs in accordance with the forward and backward movement of the driving member, and at the leading end of the locking member. A knob is provided and is exposed to the outside through the front panel, and one end is supported by the base member and the other end is supported by the drive member is configured to include an elastic member for providing an elastic force to the forward and backward drive of the drive member.

The base member is composed of a base flange and a base body perpendicular to each other is provided with a fastening hole corresponding to the shaft.

A longitudinal guide portion protruding in the axial direction and a longitudinal guide channel recessed to correspond to the longitudinal guide portion are formed at positions corresponding to each other on the side surface of the base body and the inner peripheral surface of the driving member.

The drive member is provided with a partially cut hook, and one end of the base body is formed with a hook catching portion to limit the reverse range of the hook when the drive member is retracted.

The locking member is provided with a rib guide portion for guiding the rib in one direction when the driving member is moved forward, and a rib locking portion for selectively fixing the rib to correspond to the lead guide portion.

One side of the base body and the bottom surface of the locking member is formed in a position corresponding to each other the lateral guide channel formed in the vertical direction in the axial direction and the lateral guide portion protruding to correspond to the lateral guide channel.

The elastic member is a spring, one end of which is supported by the base flange and the other end of which is supported by a support flange protruding from the outer circumferential surface of the driving member.

According to the present invention having the configuration as described above, the knob is selectively protruded to the front panel in a push-pull manner to effect the design of the electronics in various ways.

Hereinafter, a preferred embodiment of a push-pull knob assembly according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a side view showing a mounting state of a preferred embodiment of the push-pull knob assembly according to the present invention, Figure 3 is an exploded perspective view showing the configuration at one side of the embodiment of the present invention, Figure 4 is an embodiment of the present invention It is an exploded perspective view which shows the structure at the other side of an example. 5 is a perspective view showing the configuration of the locking member according to an embodiment of the present invention.

As shown in these figures, the front panel 20 of the product is provided with a mounting hole 21 through which the knob 80, which will be described later, is penetrated. The shaft 31 of the switch 30 is located in the central portion of the mounting hole 21. The switch 30 refers to an electrical component (for example, a volume switch) whose output can be adjusted according to the rotation of the shaft 31 that cooperates with the rotation of the knob 80. By means of electrical components, the output is regulated and these outputs can be delivered to the interior of the product. The switch 30 may be installed on a substrate 23 or the like installed inside the product. However, the present invention is not limited thereto, and the switch 30 may be installed in any other electric component installed inside the product.

The base member 40 is fitted to the shaft 31 of the switch 30. In other words, the base member 40 is composed of a base flange 41 and a base body 43 perpendicular to each other, and formed in the axial direction of the base body 43 from a central portion of the base flange 41. The shaft 31 is inserted into the fastening hole 41a. Therefore, since the cross-sectional shape of the shaft 31 is formed in a substantially semi-circular shape, the shape of the fastening hole 41a is also configured to correspond thereto.

The base flange 41 has a disc shape having a predetermined thickness. One surface of the base flange 41 is supported by one end of the elastic member 70 to be described below.

The base body 43 is provided in a vertical direction on one surface of the base flange 41. And the cross-sectional shape of the base body 43 has a substantially semi-circular shape, the upper surface and the side surface is approximately flat and the bottom surface is a semi-circular curved surface.

The base body 43 is a driving member 50 and the locking member 60 to be slidably fitted to be described below, the side guide portion protruding in the axial direction of the base body 43 for this purpose 43a) is formed, and the upper surface is provided with a lateral guide channel 43b recessed perpendicular to the axial direction. In addition, a stepped portion 43c is formed on an upper surface of the base body 43 to support one side of the locking member 60 when the locking member 60 slides along the lateral guide channel 43b.                     

In addition, a hook engaging portion 43d is formed on the semicircular bottom of the base body 43. The hook engaging portion 43d serves to limit the advance range of the driving member 50 by engaging the hook 55 of the driving member 50 to be described below. To this end, the hook catching portion 43d is configured such that the hook 55 is caught by the hook catching portion 43d while the driving member 50 protrudes by the intended length on the front panel 20. It is preferably formed at the end of the base body 43.

The base body 43 of the base member 40 is inserted into the drive member 50. Therefore, the cross-sectional shape of the drive member 50 is also composed of a semi-circular shape. At this time, a longitudinal guide channel 51 is formed in the inner circumferential surface of the driving member 50 along the axial direction, and the longitudinal guide portion 43a of the base body 43 can slide in the longitudinal guide channel 51. Is fitted.

Ribs 53 are formed on the inner circumferential surface of the driving member 50 corresponding to the upper surface of the base body 43. The rib 53 is selectively fixed by moving on the locking member 60 seated on the upper surface of the base body 43, and serves to fix the driving member 50 to the base member 40. do.

At this time, the hook 55 is installed on the opposite side of the inner circumferential surface of the driving member 50 in which the rib 53 is formed. The hook 55 is formed by partially cutting the drive member 50, and is elastically deformable in the centrifugal direction. As mentioned above, the hook 55 is caught by the hook catching portion 43d when the driving member 50 protrudes into the front panel 20 to limit the advance range of the driving member 50. It also plays a role.                     

In addition, a support flange 57 protruding in the circumferential direction is formed on the outer circumferential surface of the driving member 50 to support one end of the elastic member 70 to be described below.

The locking member 60 includes a rib guide portion 61 and a rib locking portion 63 so that the rib 53 can be selectively fixed while moving along the upper surface thereof. The rib guide portion 61 and the rib catching portion 63 are configured in a sawtooth shape corresponding to each other. In more detail, as shown in FIG. 5, the rib guide part 61 has a first guide surface 61a, a second guide surface 61b, and a third guide surface 61c continuously connected to each other. A saw tooth shape. At this time, the first guide surface 61a and the third guide surface 61c are inclined in the same direction and are connected by the second guide surface 61b.

And the rib engaging portion 63 is provided with a first engaging surface (63a) on one side, the second engaging surface (63b), the third engaging surface (63c) and the fourth engaging surface (63d) on the other side continuously do. At this time, the second, third and fourth engaging surfaces 63b, 63c, and 63d face the first, second, and third guide surfaces 61a, 61b, and 61c at a predetermined distance from each other. In other words, the point where the first and second guide surfaces 61a and 61b contact each other corresponds to one end of the second catching surface 63b, and the point where the second and third catching surfaces 63b and 63c contact each other is the third. It corresponds to one end of the guide surface 61c. The other end of the third guide surface 61c corresponds to one end of the fourth engaging surface 63d. Although the portions of the rib catching portion 63 are referred to as first, second, third and fourth catching surfaces 63a, 63b, 63c, and 63d, the portions where the ribs 53 are caught are second and third catching parts. Since the surfaces 63b and 63c are in contact with each other, the engaging surfaces 63a, 63b, 63c, and 63d substantially serve to guide the ribs 53.                     

A horizontal guide portion 65 protrudes from the bottom of the locking member 60 to slide along the horizontal guide channel 43b of the base body 43. Therefore, the locking member 60 is moved in the transverse direction when the rib 53 is moved forward and backward and in contact with the rib 53 is changed in position.

Both ends of the elastic member 70 are supported by the base member 40 and the driving member 50. In other words, one end of the elastic member 70 is supported by the base flange 41 and the other end is supported by the support flange 57 of the drive member 50. The elastic member 70 imparts elastic force to the movement of the driving member 50 when the driving member 50 is moved forward and backward along the axial direction of the base body 43 and selectively fixed to the locking member 60. It plays a role. The elastic member 60 is illustrated as a spring in the present embodiment, but is not limited thereto.

The knob 80 is mounted to one end of the driving member 50 to protrude from the front panel 20. The knob 80 rotates the drive member 50, the base member 40, and the switch 30 simultaneously by rotation to adjust the output of the device. The knob 80 is shown in dashed lines to represent the shape of the drive member 50 in this embodiment.

Hereinafter, the operation of the push-pull knob assembly according to the present invention will be described in detail.

6A is an operational state diagram showing a state in which the knob is advanced in the embodiment of the present invention, Figure 6b is an operating state diagram showing a state in which the knob is reversed in the embodiment of the present invention. 7 is a block diagram showing the relationship between the locking member and the rib according to the embodiment of the present invention.                     

As shown in FIG. 6A, when pressure is applied to the knob 80 in the axial direction (arrow direction), the driving member 50 moves along the base body 43 of the base member 40. In other words, while the longitudinal guide portion 43a of the base body 43 is inserted into the longitudinal guide channel 51 of the driving member 50, the driving member 50 moves backward in the direction of the base member 40. Therefore, as the base member 40 and the driving member 50 overlap, the overall length is reduced. In this case, the elastic member 70 contracts while being supported by the base flange 41 of the base member 40 and the support flange 57 of the driving member 50.

This contraction continues until the rib 53 of the drive member 50 contacts the rib guide portion 61 of the locking member 60. In other words, the rib 53 moves along the upper surface of the locking member 60 and is guided to the rib locking portion 63 of the locking member 60 to move the locking member 60 in the lateral direction. After that, the rib 53 continues to move forward and is guided in contact with the first guide surface 61a of the rib guide portion 61 and moves to a point of contact between the first guide surface 61a and the second guide surface 61b ( Line I of FIG. 7). At this time, the rib 53 substantially continues the linear movement by the linear movement of the drive member 50 and the rib guide portion 61 is pushed in one direction by the movement of the rib 53. The locking member 60 moves in the lateral direction along the lateral guide channel 43b (illustrated by a double arrow in FIG. 7).

Accordingly, the rib 53 moves along the first guide surface 61a and comes into contact with the second guide surface 61b so that further movement is restricted. At this time, if the pressure applied to the knob 80 is reduced or dissipated, the driving member 50 is advanced by the elastic force of the elastic member 70 while the rib 53 is caught by the rib engaging portion 63 to maintain the fixed state. do. That is, the rib 53 moves along the second engaging surface 63b of the rib engaging portion 63 and is caught at a point where the second engaging surface 63b and the third engaging surface 63c come into contact with each other (FIG. 7). Line II). Through this process, the apparatus according to the present invention is buried in the front panel 20, as shown in Figure 6b.

Thereafter, when the user wants to push the knob 80 to the front panel 20 for the manipulation of the knob 80, the pressure is applied to the knob 80 and the rib 53 is separated from the rib catching portion 63. Be sure to In more detail, when the knob 80 is pressed, the driving member 50 moves backward while the rib 53 is separated from the rib catching portion 63 as shown in the line III of FIG. 7 to contact the rib guide portion 61. Done. At this time, the rib 53 contacts the second guide surface 61b of the rib guide portion 61. This is because the contact point between the second engaging surface 63b and the third engaging surface 63c of the rib engaging portion 63 to which the rib 53 is fixed corresponds to one end of the second guide surface 61b. .

Therefore, the rib 53 is advanced until it can no longer move along the second guide surface 61b. After that, when the pressure for pressing the knob 80 disappears, the driving member 50 is advanced by the elastic force of the elastic member 70. At this time, the rib 53 is guided to the fourth engaging surface 63d of the rib engaging portion 63 and moves along the engaging member 60 (IV line in FIG. 7).

As shown in FIG. 6A, the advance of the driving member 50 continues until the hook 55 of the driving member 50 comes into contact with the hook engaging portion 43d of the base member 40. When the movement of the drive member 50 is stopped and the knob 80 protrudes out of the front panel 20, the user rotates the knob 80 to adjust the output. At this time, since the cross-sectional shapes of the driving member 50, the base member 40, and the switch 30 which are sequentially fastened to the inside of the knob 80 are semicircular, the respective members 30 and 40 are turned when the knob 80 is turned. , 50) is driven without slipping in the circumferential direction to obtain the desired output.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

That is, the longitudinal guide channel 51 is formed on the side surface of the base body 43 and the inner circumferential surface of the driving member 50 so as to correspond to the longitudinal guide portion 43a protruding in the axial direction and the longitudinal guide portion 43a. ) May be configured as opposed to the present embodiment. In other words, a longitudinal guide channel may be formed on the side surface of the base body 43, and a longitudinal guide part may be formed on the inner circumferential surface of the driving member 50.

In addition, a horizontal guide channel 43b and a horizontal guide protrusion protruding to correspond to the horizontal guide channel 43b are formed on the one surface of the base body 43 and the bottom surface of the locking member 60 in the vertical direction. The section 65 may be configured in the reverse of this embodiment. In other words, a horizontal guide portion may be formed on one surface of the base body 43, and a horizontal guide channel may be formed on the bottom surface of the locking member 60.

In the push-pull knob assembly according to the present invention as described in detail above, the following effects can be expected.                     

That is, the present invention has an effect of implementing a variety of designs of electronic products by selectively protruding the knob to the front panel in a push-pull manner.

And the present invention has the advantage that the unintentional rotation of the knob is prevented by being buried in the front panel when it is not necessary to operate the knob.

In addition, according to the present invention, since the knob is located on the same plane as the front panel while the knob is buried in the front panel, the front panel may be more easily cleaned.

Claims (7)

A switch installed on the board and output controlled according to the rotation of the shaft; A base member fitted to the shaft; A driving member moved in the axial direction along the base member and having a rib on an inner circumferential surface thereof; A locking member supported by the base member to be moved in a direction orthogonal to a moving direction of the driving member to selectively fix the rib in accordance with forward and backward movement of the driving member; A knob provided at the front end of the locking member and exposed to the outside through the front panel; Push-pull type knob assembly characterized in that it comprises an elastic member for supporting one end is supported by the base member and the other end is provided to the drive member to impart an elastic force to the forward and backward drive of the drive member. The push-pull knob assembly of claim 1, wherein the base member comprises a base flange and a base body perpendicular to each other, and includes a fastening hole corresponding to the shaft. According to claim 2, wherein the side of the base body and the inner peripheral surface of the drive member is formed in the position corresponding to the longitudinal guide portion protruding in the axial direction and the longitudinal guide channel recessed to correspond to the longitudinal guide portion Push-pull knob assembly. According to claim 3, The drive member is provided with a hook partially cut, the hook portion is formed on one end of the base body is pushed, characterized in that the hook is caught when the drive member is reversed is limited in the reverse range Fully assembled knob assembly. According to any one of claims 1 to 4, wherein the locking member is formed to correspond to the rib guide portion and the lead guide portion to guide the rib in one direction when the drive member is advancing selectively the rib Push-pull knob assembly, characterized in that provided with a rib engaging portion for fixing. According to claim 5, One side of the base body and the bottom surface of the engaging member is formed in a position corresponding to each other the lateral guide channel formed in the vertical direction in the axial direction and the lateral guide portion protruding to correspond to the lateral guide channel. Push-pull knob assembly, characterized in that. The push-pull knob assembly of claim 6, wherein one end of the elastic member is supported by the base flange and the other end is supported by a support flange protruding from the outer circumferential surface of the driving member.

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