KR200214424Y1 - Heart Cam Restraint Device for Electronic Control Unit - Google Patents

Abstract

This design improves the heart cam restraint device necessary for the opening and closing of the control box in the case of opening and closing the control box in the case of an electronic product such as a display device. A heart cam restraint device for a control unit for a heart, comprising: a heart cam unit having a pin passage and a heart cam formed in the control box so that the control box is constrained and released from the housing; In the heart cam restraint device comprising a catching portion having a catching pin pressed by a spring piece, the pin passage through which the catching pin enters the lower portion of the heart cam is lowered to form an induction jaw portion, and the heart cam inserting portion has a triangular portion. The inclined slope so that the upper end of the triangular portion is not caught by the locking pin It is formed so as to have, in the front of the bending jaw to guide the locking pin is inserted into the locking groove formed in the heart cam has a guide curved portion to guide the leading pin to the bending jaw portion and the tip of the bending jaw portion is inclined downward so as not to catch the locking pin It is characterized by having a wealth.

Description

Heart Cam Restraint Device for Electronic Control Unit

The present invention improves the heart cam restraint device necessary for the opening and closing of the control box in the case of opening and closing the control box in the case of an electronic product such as a display device. It relates to a heart cam restraint device for a control unit.

In general, an electronic device such as a display device employs a control unit for adjusting its function, and the control unit is employed fixed to the case or a control box is pushed into the case by manual operation. If it is pushed slightly, it may be adopted to be pushed out again to expose the case.

The present invention relates to a control unit having a control box, which is adopted to operate inside and outside the case, and Korean Utility Model Registration No. 114104 has been disclosed in the prior art as a control unit of this type.

However, the control unit disclosed in the prior art, the housing of the case fixed to the case and the operating device of the control box to open and close the movement from the housing has a problem, resulting in uncertainty of function.

Before the detailed description, the state that the control box enters the inside of the housing is defined as a closed operation or a closed state of the control box, and the state in which the control unit is operated to protrude out of the housing to use the control box is opened or opened. Let's define the state.

Therefore, in the closed state of the control unit, the control box has a state of being stopped inside the housing, and at this time, the stop is made to be stopped by the push catcher restraining device. However, the push catcher restraint device has a problem in that it is inconvenient to use because it has to press the control box very strongly to release it.

As a result, the control unit of the prior art has the above-described drawbacks in the device for restraining and releasing the control box, causing a problem that is not smooth in the overall operation.

The present invention is to make the device to be the opening and closing operation of the control box by the heart cam restraint device to improve the unsafe structure of the operation of the heart cam restraint device to prevent jamming and malfunctioning in advance I want to do that.

The present invention has a heart cam binding device that is operated to have an open and closed state of the control unit. The heart cam restraint device is characterized in that the locking pin is not caught in the heart cam portion.

The present invention, in order to achieve the above object, the heart cam portion having a pin passage and the heart cam is formed in the control box so that the control box is constrained and released in the housing, and the latch and release from the heart cam portion is installed in the housing A heart cam restraint device composed of a catching portion having a catching pin pressed by a spring piece to be formed, the first inserting portion of the heart cam forming a triangular portion; An upper end portion of the triangular portion is formed to form an inclined surface inclined so that the engaging pin is not caught; It has an induction curved portion to guide the engaging pin to the bending jaw portion in front of the bending jaw to guide the engaging pin is inserted into the engaging groove formed in the heart cam; The tip of the bending jaw portion is characterized in that it is configured to have an inclined surface so as not to catch the locking pin.

1 is an overall perspective view of a display device employing a control unit according to the present invention,

2 is a perspective view showing a control unit according to the present invention,

3a and 3b is one side cross-sectional view showing that the control unit according to the present invention is mounted to the case;

Figure 4 is a perspective view of the entire separation of the control unit according to the present invention,

5 is a partially enlarged perspective view showing a guide and a lubrication structure of the control box according to the present invention;

6A is an enlarged cross-sectional view taken along line AA ′ of FIG. 5;

Figure 6b is a side cross-sectional view showing the main portion of the flow margin of the control box and the case according to the present invention,

7 is a perspective view of the engaging structure of the damper device and the locking portion of the heart cam restraint device according to the present invention;

8 is a plan view schematically showing a control unit according to the present invention;

9 is a plan view showing in detail the control unit according to the present invention,

10 is a rear view of FIG. 9;

11a to 11c is one side cross-sectional view showing that the control box according to the present invention is opened operation;

12 is a side cross-sectional view illustrating the opening and closing operation of the control box by the heart cam lock according to the present invention;

Figure 13 is a perspective view of the heart cam portion of the heart cam lock according to the present invention,

14 is a functional diagram illustrating the operation of the heart cam restraint device according to the present invention,

15a and 15b is a side cross-sectional view showing the opening and closing operation of the control box by the heart cam binding device according to the present invention.

Explanation of symbols on the main parts of the drawings

2: case 5: withdrawal ball

10: control box 11: function key

12: curved joint 13: guide groove

14: lubrication groove 15; slush

16 rack gear 17 flat end

20: housing 21: elastic member

22: pressure member 23: damper device

24: gear 25: creep

26: guide protrusion 27: support rib

40: heart cam restraint device 41: heart cam part

42: Pin Path 43: Heart Cam

44: bending end 45: locking part

46: locking pin 47: spring piece

48: guide surface portion

When the present invention is described in more detail based on the accompanying preferred embodiments as follows.

1 shows a display device 1 employing a control box 10 according to the present invention. The control box 10 is inserted into or protruded into the case 2 of the product, and the insertion into the case 2 is called a closing operation, and the protrusion is defined as an opening operation.

The control box 10 is provided with a housing 20 inside the case 2 as shown in Figure 2 for the opening and closing operation.

3A and 3B, the housing 20 is fixed at the inner surface side of the case 2 with the fixing screw 4 at the upper edge 3 and the lower end of the snap 3 'formed at the housing 20. ) Is fixed to the snap hole 2 'made in the case 2.

And the control box 10 which is opened in the housing 20 is configured to be opened and closed through the drawing hole 5 formed in the case (2).

Referring to FIG. 4, the control box 10 includes a plurality of function keys 11 that can be operated by hand.

In addition, the control box 10 is pressed by the resilient member 21 and the pressing member 22 installed in the housing 20 so as to protrude to the rear end to the curved joint 12 to be opened. .

The rear middle portion of the control box 10 has a rack gear 16 that meshes with the gear 24 of the damper device 23 that is installed to be fixed to the housing 20.

Long guide grooves 13 are formed at both sides of the control box 10. As shown in FIG. 4, the guide groove 13 has a plurality of lubrication grooves 14 formed on the inner surface 13a, where the lubricant 15 is applied before assembly.

As shown in FIG. 4, guide guides 26 formed to protrude on both inner surfaces of the housing 20 are fitted into the guide grooves 13, and the control box 10 is guided by the guide protrusions 26. As it opens and closes.

According to FIG. 6, the guide protrusion 26 is inserted into the guide groove 13 and becomes sliding friction when the control box 10 is opened and closed.

At this time, since the lubricant 15 in the lubrication groove 14 is naturally applied to the surface they are in contact with, the smooth operation. In addition, since the lubricant 15 is always in the lubrication groove 14, it is not necessary to apply a separate lubricant over a long period of time, thereby further having product reliability.

In particular, the present invention has a structure in which the flat end portion 17 is formed on the side of the guide groove 13. That is, the guide groove 13 forms a circular guide groove 13. Only so, when the control box 10 is opened in the housing 20, the control box 10 is opened in an inclined state such that the user can easily press the function key 11.

However, for example, when the guide groove 13 is in the shape of an arc only, and the case 2 and the control box 10 have a small flow margin, the guide groove 13 is opened only in the trajectory state of the arc motion during the opening operation of the control box 10. And the control box 10 operated by the closing operation may be caught in the case 2.

However, as shown in FIG. 6A, when the guide protrusions 26 are contacted with the guide protrusions 26 during the opening and closing movements, the control box 10 forms a flat end 17 at the lower end of the guide groove 13. By being in a linear motion state can have a larger flow margin (k), it can be operated without being caught in the case (2) in the operation of the control box (10).

7 shows the damper device 23 as described above. This damper device 23 has a gear 24. When the gear 24 is rotated, its rotational speed is suppressed. It is designed to suppress the rotation of the gear 24 inside the damper device 23. Since the rotation suppressing structure is a known technique, detailed descriptions and drawings are omitted.

The damper device 23 is fixed by fitting the rib 23a to the creep 25 formed in the housing 20. In this way, the damper device 23 mounted on the housing 20 is mounted to the intermediate part according to FIGS. 3 and 8. Therefore, the role of the damper apparatus 23 can be fulfilled faithfully.

That is, when the control box 10 is opened and closed, the rack gear 16 is moved, and the gear 24 is rotated by the movement of the rack gear 16.

However, since the rotation of the gear 24 is suppressed, the control box 10 does not open rapidly but moves slowly. That is, when the control box 10 performs the opening operation, the speed is controlled to be slow.

In particular, the present invention is the damper device 23 is installed in the position as close as possible to the heart cam restraint device (40). Therefore, when the control box 10 is opened by the operation of the heart cam restraining device is released, the speed control effect is improved because the opening speed is controlled to be slow in the vicinity.

According to FIG. 8, the damper device 23 is located in the middle. Therefore, the damping device has a damping force immediately extends to both sides, so the role of the damper is more faithful than before.

9 and 10, the pressing member 22 is installed so that both ends 22a are fitted to the support ribs 27 and are rotatable. In addition, the elastic member 21 is provided on both sides of the pressing member 22, one end portion 21a of the housing 20 itself, and the other end portion 21b is caught by the pressing member 22. . As a result, the force of the elastic member 21 is applied to the pressing member 22.

In addition, the pressing member 22 is in contact with the curved portion 12 of the control box 10 to have a state to press.

11A to 11C show a state in which the control box 10 is opened by the pressure member 22 described above. That is, the control box 10 is in a state of being stopped by the heart cam restraint device 40 described later. At this time, as shown in Figure 11a the pressing member 22 is maintained in a state that is pushed back, this state is a state in which the elasticity of the elastic member 21 is large.

In addition, since the pressing member 22 which is in direct contact with the curved joint 12 of the control box 10 is pressed at the lower end of the curved joint 12, the pressing member 22 is opened when it is opened. The force pushing the curved joint 12 is in a large state, and the control box 10 opened by this force is opened at a normal speed.

However, when the open state is reached in the middle as shown in FIG. 11B, the pushing force of the pressure member 22 becomes a medium force from this time, but the speed of the open control box 10 has a high speed. However, when the control box 10 reaches to the almost open state as shown in FIG. 11C, the pushing force of the pressing member 22 is greatly weakened. Therefore, the opening speed is slowed down when the control box is almost opened.

In this way, the opening speed of the control box 10 is differentiated. That is, the control box 10 has a faster opening speed in the middle open state enables a faster opening operation. However, at the last opening point, the door is opened in a slow state again, so that no collision sound occurs and safe opening is achieved.

The heart cam restraint device 40 is already known for its basic structure. The present invention is characterized by employing a heart cam restraint device of a more improved structure, including the heart cam restraint device 40 of the known technology.

Such a heart cam restraint device 40 is provided with respective components in a member which is not moved and a member which is operated on the basis of the member.

That is, the heart cam restraint device 40 has a catching part 45 which is largely divided to be caught by the heart cam part 41 and the heart cam part 41 to be restrained or released again.

FIG. 12 shows that the heart cam restraint device 40 having the heart cam part 41 and the locking part 45 is employed. By the action of the heart cam restraint device 40, the control box 10 can be operated in a state in which it is maintained in a stopped state in the housing 20 or in an open operation as shown in a virtual line.

In addition, the heart cam portion 41 is configured on the bottom of the control box 10, the locking portion 45 is configured in the housing 20.

13 and 14 illustrate a heart cam portion 41 formed on the bottom of the control box 10.

The heart cam portion 41 is formed to have a pin passage 42 through which the locking pin 46 passes, and a heart cam 43. The side of the heart cam 43 has a "V" shape, which makes it possible to smoothly find and enter the pin passage 42 without catching the catch pin 46.

According to FIG. 14, the locking pin 46 enters to the right. Here, the bottom has a right pin passage bottom 42a deeper and the left pin passage bottom 42b relatively high. Therefore, the locking pin 46 enters the right pin passage once. At this time, since the heart cam 43 is a triangular portion 43a having a "V" shape, the locking pin 46 can be smoothly entered without being caught by the heart cam 43 itself.

That is, the present invention forms the guide jaw portion 42c by lowering the pin passage 42 through which the engaging pin 46 enters the entry portion of the heart cam 43, and the entry portion of the heart cam 43 is a triangular portion. The upper end portion of the triangular portion 43b is formed to form an inclined surface 43c so as not to be caught by the locking pin 46, and the locking pin 46 is formed on the heart cam 43. It is characterized by consisting of the guide surface portion 48 to guide the insertion into (43a).

Therefore, the locking pin 46 is guided along the guide jaw portion 42c, so that the entry is accurate. At this time, the entry portion of the triangular portion 43b forms a low inclined surface 43c, so the locking pin 46 is entered without being caught. .

In addition, the entering locking pin 46 is guided along the guide curved portion 48 so that the locking pin 46 is easily inserted into the locking groove 43a. At this time, the control box 10 is stopped in the housing 20 as a locked state.

Referring to the induction curved portion 48 in more detail, the present invention is to reduce the distance to stop the control box 10 as much as possible by forcibly changing the direction of the locking pin 46, The pin 46 is designed to be guided exactly to the locking groove (43a).

In the state where the locking pin 46 is inserted into the locking groove 43a as described above, the control box 10 is stopped in the housing 20, and the control box 10 is opened to open the control box 10. Just press the front part of (10) inward slightly.

That is, when the front of the control box 10 is slightly pushed in so that the locking pin 46 is released from the locking groove 43a as shown by the dotted arrow in FIG. 14, the control box 10 is restrained. An operation is opened that is opened as soon as it is released.

Here, the present invention is to have a state in which the end of the bent portion 44 is inclined to be inclined, that is, having a downward inclined portion (44a).

For example, when the end portion of the bending jaw portion 44 has a vertical state as in the prior art, the folding portion of the locking pin 46 when the locking pin 46 is caught in this portion and the control box is opened for opening. Occasional occurrence of malfunction occurs when 46a is caught at the end of the vertical state.

In the present invention, however, the downward inclined portion 44a is provided at the end of the bending jaw 44 so that the locking pin 46 is not caught when it is pulled out of the locking groove 43a, thereby preventing malfunction.

15A and 15B, the closed state and the open state of the control box 10 are shown, and the heart cam part 41 and the engaging part 45 of the heart cam restraint device 40 are shown.

The locking portion 45 is shown in more detail in FIG. 7, and the locking pin 46 is always pressed by the spring piece 47 having one end fixed to the housing 20 itself. Therefore, the locking pin 46 does not leave the pin passage 42 in the process of passing through the pin passage 42.

According to the above description, the locking pins installed in the housing according to the present invention can accurately move without catching the pin passage around the heart cam formed in the control box.

Therefore, since an error of operation is not generated, it provides an effect of making reliability in the operation of the control unit, thereby greatly improving the reliability of the entire electronic product.

Claims (1)

A heart cam portion having a heart path and a pin passage formed in the control box so that the control box is constrained and released from the housing, and a locking pin that is pushed by the spring piece that is latched and released from the heart cam portion and is installed in the housing; As a heart cam restraint device composed of a locking portion, Forming a guide jaw portion by lowering a pin passage through which the engaging pin enters the first entrance of the heart cam; The heart cam entrance portion forms a triangular portion; An upper end portion of the triangular portion is formed to form an inclined surface inclined so that a locking pin is not caught; The engaging pin has an induction curved portion to guide the insertion into the engaging groove formed in the heart cam; The heart cam restraint device for a control unit for an electronic product, characterized in that the bent tip portion has a downward slope so as not to catch the locking pin.