KR100457547B1 - Pipe spring having flange and hinge device using that - Google Patents

Abstract

The flange type pipe spring according to the present invention is formed to have at least one or more flanges protruding radially from one end of the pipe spring, and has a structure that can be applied to various hinge devices while generating the same torque in both rotation directions. In addition, the hinge device according to the present invention employs the flange-type pipe spring is inserted into the first bracket, the shaft hole of the first bracket, at least one of the flange formed at one end of the flange-type pipe is fixed to the first bracket A spring, a shaft fitted through the through-hole of the pipe spring, and a second bracket pivotably fixed to the shaft following the flange of the pipe spring, thereby dramatically reducing the number of components, Accordingly, the hinge device provides assembly, production cost, stability of use, and long service life.

Description

Flanged pipe spring and hinge device using same {PIPE SPRING HAVING FLANGE AND HINGE DEVICE USING THAT}

The present invention provides a flange type pipe spring for maintaining the opening and closing angle of an object connected to the hinge device at a desired angle by applying frictional force to the rotation of the shaft in the hinge device, and a hinge comprising the flange type pipe spring as a component. Pertains to the device.

When a computer monitor or the like is used, a monitor or the like is maintained at a constant angle around the hinge device, but an appropriate stop means is employed to maintain a constant angle.

To this end, the conventional hinge device generally has a configuration in which a spring is mounted on the shaft to impart a friction force to an adjacent member by a predetermined elasticity to maintain the open angle fixedly. Such a hinge device is operable by shaking of a component. There was a problem of bad noise and abrasion, and to solve this problem, without using a spring, the disk spring (marked as a saucer spring) can be used to improve operability and reduce noise and wear. The hinge device has been disclosed in the registered utility model No. 173283, the registered utility model No. 233484, etc. of the present applicant.

However, the utility model requires a large number of parts, such as bolts and nuts for fastening the coil spring, a plurality of disk springs, washers, and the like, although the operability and stability can be secured, and thus the difficulty of assembling the product due to the complexity of the device. And, there was a disadvantage that a high probability of failure during continuous operation.

Thus, a friction hinge device employing a pipe spring can be used that can apply friction directly against the shaft to reduce the component count and simplify the device. The friction hinge device is very useful for, for example, keeping the display of a notebook computer at an angle with respect to the main body. That is, in the case of a notebook computer, the friction hinge device is coupled to the main body to enable the opening and closing of the cover integrated with the display in the vertical direction, and by the pressing force of the pipe spring or the like built in the friction hinge device when the cover is opened. It serves to maintain the cover at a proper angle to the body. At the same time, the friction hinge device generates dynamic torque due to friction when an object such as a cover of a notebook computer moves or rotates, thereby suppressing sudden movement of the object and cushioning an impact. Such a friction hinge device has been disclosed in Korean Utility Model Registration No. 280628, Japanese Utility Model Registration No. 279159, and the like.

However, the conventionally disclosed pipe spring has a protrusion 102 extending from the bent portion 103 of the pipe spring 100 for fixing in the apparatus, as shown in FIGS. 1A-1B, and the protrusion ( 102 is fixed in the housing. Due to this structural characteristics, there is a problem that different torques occur due to asymmetrical action of the friction force depending on the rotational direction of the shaft inserted through the spring. To solve this problem, two pipe springs having curling portions 100 curled from the protrusions 102 are arranged side by side (Registration Utility Model No. 280628), or such two pipe springs are formed integrally. (Registration Utility Model No. 279159) The same friction force was generated regardless of the direction of rotation.

However, these pipe springs require space as much as double pipe springs, so that the required space becomes larger and the number of parts is limited. In addition, there is a problem in that the assembly is deteriorated due to the process of press-fitting the spring into the housing to fix the pipe spring, and can be used only in a hinge device having a housing having a specific structure, and thus has the disadvantage of poor device adaptability.

In order to solve the above disadvantages, the present invention is to generate the same friction force irrespective of the direction of rotation of the shaft without using a double pipe spring, and also a separate structure such as a housing having the above-described specific structure in the hinge device Provided is a flanged pipe spring formed of a structure that can be simply applied without the need.

Furthermore, the present invention employs the flange-type pipe spring as a component, thereby significantly reducing the number of components and improving the assemblability, while providing a hinge device with high durability and durability.

1A and 1B are front and side views of a conventional pipe spring,

2 is a perspective view of a flange type pipe spring according to an embodiment of the present invention;

3 is an exploded perspective view of a hinge device according to an embodiment of the present invention,

4 is a perspective view of a hinge device according to the embodiment of the present invention.

<Description of Major Symbols in Drawing>

10: flange type pipe spring 11: incision

12: Flange 13: Through Hole

20: first bracket 21: first bracket shaft hole

22: insertion groove 23: guide groove

30: shaft 40: second bracket

41: stopper 42: second bracket shaft hole

In order to achieve the above object, the flange-type pipe spring according to the present invention has the following shape.

That is, the flange type pipe spring according to the present invention has a cylindrical through-hole formed therein, a spring body having a cutout extending from one end to the other end in the longitudinal direction, and radially protruding along the circumference of one end of the spring body Have one or more flanges.

Further, the hinge device employing the flange type pipe spring has the following structure.

That is, the hinge device includes a first bracket having a shaft hole therein and an anti-rotation fastener formed around the shaft hole, and at least one of a flange formed at one end of the first bracket is inserted into the shaft hole of the first bracket. A second bracket fixed to the flange-type pipe spring according to claim 1, a shaft fitted through the through-hole of the pipe spring, and a shaft hole to be rotatably fixed to the shaft following the flange of the pipe spring; It is configured to include.

Further, according to a preferred embodiment of the present invention, the first bracket, the first bracket is formed with a guide groove in a predetermined section of the edge, the second bracket is the guide corresponding to the guide groove of the first bracket A stopper that can be engaged with the groove is protruded so that the rotation angle is limited by the section of the guide groove of the first bracket during the rotation, thereby limiting the rotation angle of the hinge device according to the present invention without adding a separate component. To help.

EMBODIMENT OF THE INVENTION Hereinafter, with reference to drawings, the flange type pipe spring which concerns on preferred embodiment of this invention, and the hinge apparatus using the same are demonstrated.

2 is a perspective view of a flange type pipe spring 10 according to the present invention. As shown, the flange-type pipe spring 10 according to the present invention is formed to have a cutout 11 of a predetermined interval along the longitudinal direction in the form of a cylinder. Accordingly, in the state where the shaft is inserted into the through hole 13 of the spring 10, the front surface of the spring through hole 13 contacts and presses against the outer circumferential surface of the shaft, thereby applying a friction force to the rotational direction when the shaft rotates. It is in a form that can be. One end of the pipe spring 10 is formed such that the flange 12 protrudes substantially perpendicular to the longitudinal direction of the spring 10. In this case, two or more flanges are preferably formed such that the angles formed by the flanges are the same. In accordance with a preferred embodiment of the present invention four flanges 12 are shown in FIG. 2 formed at an angle of 90 °.

The flange 12 of the flange type pipe spring 10 according to the present invention is a part for fixing the pipe spring 10 in the hinge device. That is, when the pipe spring 10 is inserted into the shaft hole formed in the bracket of the hinge device, the flange 12 of the pipe spring 10 abuts on the bracket face, and the flange can be fixed to the contact portion on the bracket face. The pipe spring 10 is fixed in the hinge device by forming a fixed fixture. Unlike the conventional fixing of the pipe spring shown in FIG. 1, the pipe spring 10 according to the present invention is disposed in a symmetrical position (position of the flange 12 of the pipe spring 10) with respect to the rotation direction. By being fixed, the same frictional force is generated irrespective of the rotational direction, and thus the same torque is generated. That is, in the case of the conventional pipe spring, two springs are required to generate the same torque in both directions, whereas the flange type pipe spring 10 according to the present invention is sufficient.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the hinge apparatus which concerns on this invention which employ | adopts the flange type pipe spring 10 which concerns on this invention as a component is demonstrated by attached drawing.

3 is an exploded perspective view showing an embodiment of a hinge device according to the present invention. As shown in FIG. 3, the apparatus is inserted through the flange-type pipe spring 10 and the pipe spring 10 according to the present invention inserted into the first bracket 20 and the shaft hole 21 formed therein. It consists of a shaft 30, and the second bracket 40 is fixed to one end of the shaft (30). The hinge device shown in FIG. 3 is a hinge device which can be used for a connection part of a computer monitor, etc., which is a hinge device having two rotation axes lying on the same rotation axis, but basically a hinge device (not shown) configured to have only one rotation axis. It can also be easily inferred.

As shown in FIG. 3, the first bracket 20 has a shaft hole 21 through which the flange type pipe spring 10 can be inserted. The outer diameter of the flange-type pipe spring 10 is formed to be approximately equal to or finer than the inner diameter of the shaft hole 21, and is inserted through the shaft hole 21 by applying a force. At this time, after the insertion of the flange-type pipe spring 10 is completed around the shaft hole 21 of the first bracket 20, a fastener is formed at a portion where the flange abuts.

According to a preferred embodiment of the present invention, the anti-rotation fixture formed on the first bracket 20 is formed with one or more insertion grooves, and at least one of the flanges of the pipe spring has its end fitted into the insertion groove. So that it can be bent at a right angle.

In FIG. 3, two insertion grooves 22 are formed as fasteners, and two flanges 12 bent in the insertion direction of the pipe spring 10 so as to be applied to the hinge device according to the present embodiment include the pipe spring 10. The insertion groove 22 is inserted into the insertion groove 22 at the same time as the insertion is completed.

The flange type pipe spring 10 is configured as described above and fixed to the rotation after being fitted to the first bracket 20. Fig. 3 shows the fastening by the insertion groove 22 and the flange 12 fitted thereto, but the fastening is by engagement of the flange with a fastener formed to be embossed around the flange to prevent rotation, or by welding or the like. Can be easily deduced (not shown).

After the installation of the flange type spring 10 to the first bracket 20 is completed, the shaft 30 is inserted through the through hole 13 of the flange type pipe spring 10. As with the insertion of the flange type pipe spring 10 into the shaft hole 21, the outer diameter of the shaft 30 is formed to be approximately coincident with or slightly larger than the inner diameter of the pipe spring 10, and is inserted by applying a force. .

After the insertion of the shaft 30 is completed, the second bracket 41 is fixedly installed at the end of the shaft where the flange of the pipe spring 10 is located. To this end, the shaft 30 is inserted to protrude out of the pipe spring 10 into which the shaft is inserted as long as necessary to be connected to the second bracket 40. In FIG. 3, in order to facilitate connection and fixing of the shaft 30 and the second bracket 40, an end portion of the shaft 30 connected to the second bracket 40 is cut and the second bracket 40 is disposed. The insertion hole 42 is formed to fit the end of the cutting shaft 30 in a shape-binding manner, the shaft 30 and the second bracket 40 is shown. After being connected in this way, the end of the shaft 30 may be subjected to a riveting process or the like, so that the second bracket 40 can be fixed to the shaft 30. However, it can be easily inferred that the second bracket can be secured to the shaft by means of welding or other fastening methods.

According to a preferred embodiment of the present invention, the hinge device according to the present invention can be obtained by limiting the rotation angle section by a simple change of the component shape.

To this end, as shown in FIG. 3, the circumferential guide grooves 23 having the same circular center as the rotation center of the shaft 30 are formed at a constant angle section at the edges of the first bracket 20 so that both sides of the guide grooves are formed. The locking jaw is formed at the end, and the second bracket 40 contacts the guide groove 23 in the state where the hinge device according to the present invention is assembled, and the shaft 30 and the second bracket 40 rotate. A stopper 41 moving along the sea guide groove 23 is formed. The stopper is formed to protrude in the direction of the first bracket 20 as shown in FIG.

With this configuration, it is possible to define the rotation angle of the hinge device according to the present invention in a simple manner without the addition of a component for the separate rotation angle section.

In addition, the hinge device according to the present invention can be easily inferred that the coil spring, which is fixed to the first bracket 20 and the other end to the second bracket 40, may be additionally configured for adjusting the torque value. Will be (not shown)

Figure 4 is a perspective view showing a completed form of the hinge device according to the present invention configured as described above, according to the stopper 41 and the guide groove for limiting the operation and rotation angle section in the completed state of the hinge device according to the present invention The interaction of 23 is more clearly understood.

As a result, the hinge device configured as described above has a smaller number of components, and is more stable in operation of the hinge device than the conventional hinge device, which is fastened by bolts, nuts, and the like, and has a large number of components on a rotating shaft. As a result, the failure occurrence rate is reduced and the service life is also long. The results according to the experiments of the inventors show that the conventional hinge device employing the disk spring has about 5000 available times, whereas the hinge device according to the present invention has more than 10,000 available times, compared with the conventional hinge device. It has been shown to have a lifespan nearly twice that.

By the configuration as described above, the flange-type pipe spring according to the present invention can generate the torque in the direction of rotation of both sides with only one spring component, it is possible to adapt in a more various hinge device.

In addition, the hinge device according to the present invention comprises the flange-type pipe spring as a component, it can significantly reduce the number of components compared to the conventional hinge device. This improves assembly, saves production costs, and provides a hinge device with a low failure rate and a long service life due to a simple and stable configuration.

As described above, the present invention has been described with reference to the preferred embodiment, but the present invention is not limited to the configuration and operation of the illustrated and described embodiment. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (4)

A through-hole formed in a cylindrical shape and having a cutout extending from one end to the other end in a longitudinal direction; Flange type pipe spring, characterized in that consisting of one or more flanges protruding radially along the circumference of one end of the spring body. A first bracket having a shaft hole therein and an anti-rotation fixture formed around the shaft hole; A flange type pipe spring according to claim 1 inserted into the shaft hole of the first bracket and fixed to at least one of the flanges formed at one end thereof by a fixture of the first bracket; A shaft fitted through the through hole of the pipe spring; And a second bracket having an axial hole, the second bracket being rotatably fixed to the shaft following the flange of the pipe spring. The method of claim 2, The anti-rotation fixture formed on the first bracket is formed with one or more insertion grooves, and at least one of the flanges of the pipe spring is bent at a right angle so that its end can be fitted into the insertion groove. Device. The method of claim 2 or 3, The first bracket is formed with a guide groove in a predetermined section of the edge, The second bracket has a stopper that can engage the guide groove in a portion corresponding to the guide groove of the first bracket, so that the rotation angle is limited by the section of the guide groove of the first bracket during rotation Hinge device.