KR102046696B1 - Mean for fastening pin - Google Patents

Abstract

The present invention is a pin fixing device for fixing the pin by using the restoring force of the compressed elastic member, the body extending in the front and rear direction, the coupling portion extending from the front of the body to the outside of the body and the rear of the body A pin including an elastic member formed in the portion; And a fixing part having a groove therein so that the coupling part can be inserted, wherein the pin is retracted to compress the elastic member, and after the coupling part rotates to the first position, the pin is connected to the elastic member. The pin is fixed by advancing the coupling portion into the groove of the fixing portion, the pin is retracted and the elastic member is compressed to release the pin from the groove, and the coupling portion is formed at the first position. After rotating to the 2 position, the pin is advanced by the elastic member relates to a pin holding device that the pin is separated.

Description

Pin retainer {MEAN FOR FASTENING PIN}

The present invention relates to an apparatus for fixing a pin. More particularly, the present invention relates to an apparatus for fixing a pin by using a restoring force of a compressed elastic member.

Mechanisms are usually divided into various sub-components and coupling elements, such as power elements, shaft elements, and motion control elements. The double joining element is a component for joining parts, and if the joining element is not functioning, the vibration and behavior of the machine may occur differently from the designed one, which may be directly related to the durability and safety of the mechanical device. have. Examples of coupling mechanical elements include screws, bolts and nuts, pins, keys and rivets.

Among these, the pin is a round bar of a small diameter, and is mainly used for a place where small force is applied, such as preventing slippage of a contact surface, preventing loosening of a screw, and fixing a position. Examples thereof include parallel pins, taper pins, split pins, and the like.

However, since the pin alone may have a weak coupling force, it is common to fix the pin using a bolt in order to prevent the pin from coming off. However, by such a coupling method, problems such as deformation and breakage of bolts frequently occur. In addition, the assembly and disassembly process of the pin and bolt requires a separate complicated process is a situation that is inconvenient.

An object of the present invention is to provide a pin fixing device that can maintain a pinning force by a restoring force generated during compression of an elastic member using an elastic member.

Another problem of the present invention is that the pin is fixed by the restoring force of the elastic member when the pin rotates to a predetermined position, and the pin is separated by the restoring force of the elastic member when the pin rotates to another predetermined position. It is to provide a pin fixing device that can be fixed and removable.

Still another object of the present invention is to provide a pin fixing device in which external vibration is attenuated by an elastic member when unwanted vibration is applied to the pin, and the pin can be fixed as it is in close contact with the fixing portion.

The problem to be solved by the present invention is not limited to the above-described problem, the objects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. .

According to an aspect of the present invention, a pin fixing device for fixing the pin by using the restoring force of the compressed elastic member, the body extending in the front and rear direction, the coupling portion extending from the front of the body to the outside of the body and A pin including an elastic member formed at a rear portion of the body; And a fixing part having a groove therein so that the coupling part can be inserted, wherein the pin is retracted to compress the elastic member, and after the coupling part rotates to the first position, the pin is connected to the elastic member. The pin is fixed by advancing the coupling portion into the groove of the fixing portion, the pin is retracted and the elastic member is compressed to release the pin from the groove, and the coupling portion is formed at the first position. After rotating to the second position, a pin fixing device may be provided in which the pin is separated by advancing the pin by the elastic member.

Means for solving the problems of the present invention are not limited to the above-described solutions, and the solutions not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. Could be.

According to the present invention, the fixing force of the pin can be maintained by the restoring force generated when the elastic member is compressed.

In addition, according to the present invention, the restoring force of the elastic member by the position determined by the rotation of the pin is adjusted so as to act to fix the pin, or to separate the pin, it is possible to enable easy fixing and detachment of the pin.

In addition, according to the present invention, by fixing the pin by the elastic member, even if unwanted vibration is applied to the pin, the external vibration is attenuated, the pin can be fixed in close contact with the fixing portion as it is.

The effects of the present invention are not limited to the above-described effects, and effects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings.

1 is a perspective view of a pin fixing device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the pinning device of FIG. 1. FIG.
3 is a perspective view illustrating the pin fixing device in a state where the pin fixing device is fixed according to an embodiment of the present invention.
4 is a cross-sectional view illustrating the pinning device of FIG. 3.
5 is a view showing in sequence the operation of changing the pin holding device from the detached state to the fixed state according to an embodiment of the present invention.
6 is a view showing in sequence the operation of changing the pin holding device from the fixed state to the detached state according to an embodiment of the present invention.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may deteriorate other inventions or the present invention by adding, modifying, or deleting other elements within the scope of the same idea. Other embodiments that fall within the scope of the inventive concept may be readily proposed, but they will also be included within the scope of the inventive concept.

In addition, the components with the same functions within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.

According to an aspect of the present invention, the pin fixing device is a pin fixing device for fixing the pin by using the restoring force of the compressed elastic member, the body extending in the front and rear direction, extending from the front of the body to the outside of the body A pin including an elastic member formed at a rear portion of the body and the engaging portion; And a fixing part having a groove therein so that the coupling part can be inserted, wherein the pin is retracted to compress the elastic member, and after the coupling part rotates to the first position, the pin is connected to the elastic member. The pin is fixed by advancing the coupling portion into the groove of the fixing portion, the pin is retracted and the elastic member is compressed to release the pin from the groove, and the coupling portion is formed at the first position. After rotating to the second position, the pin can be separated by advancing the pin by the elastic member.

In some embodiments of the present disclosure, the engaging portion in the second position may be rotated by 90 ° relative to the engaging portion in the first position.

In some embodiments of the present invention, the pin fixing device is formed at the front of the body, it may further include a handle for rotating the coupling portion.

In some embodiments of the present invention, the pin is cylindrical to facilitate rotation, and the coupling portion may be plate-shaped.

Hereinafter, a pin fixing device according to an embodiment of the present application will be described.

The pinning device is one of the coupling mechanical elements, and is a device for fixing the pin by using the restoring force of the elastic member. According to the pin fixing device, pinning and detaching of the pin may be performed through a simple operation of rotating the pin.

1 is a perspective view of a pin fixing device according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the pin fixing device of FIG.

1 and 2, the pin fixing device may include a pin and a fixing part.

Pins are mechanical elements used to connect and secure mechanical parts to one another. One side of the pin may be an elastic member. The pin can compress the elastic member by linear motion. The fixing part may be located on the other side of the pin opposite to the elastic member. The pin can be fixed with its behavior limited by the fixing part.

The pins may be identical to the pins commonly used in the art, except for the features described below. For example, the material of the pin may be a rigid metal material, such as a pin generally used.

The pin may include a body, a coupling portion, a handle and an elastic member.

The body is configured to determine the external shape of the pin, the shape of the body may vary. In general, the body may be in the form of a rod or cylinder extending in the front-rear direction. For example, if the pins are parallel pins, the diameter of the body can be kept constant, or if the pins are tapered pins, the diameter of the body can be smaller as one goes in one direction, and if the pins are split pins, the body is like a hairpin. It can be divided into two legs.

The body can linearly move in the front-rear direction by an external force. Here, the front may be a direction in which the elastic member is relaxed, and the rear may be a direction in which the elastic member is contracted.

The engaging portion is configured to fix the pin by engaging with the fixing portion.

The engagement portion may be located at the front of the body.

The coupling portion may be formed in a plate shape extending out of the body on a plane perpendicular to the front-rear direction.

The direction in which the coupling portion extends out of the body may be limited to a predetermined direction and range. Therefore, as the pin rotates, the direction in which the coupling part is positioned may change. For example, when the pin rotates to a predetermined position and there is a fixing part at the position of the coupling part, the coupling part and the fixing part may be coupled. When the pin rotates again, the position of the coupling portion and the position of the fixing portion are shifted, the coupling portion and the fixing portion may not be coupled.

Specifically, the coupling part may be coupled to the fixing part by being inserted into the groove in the fixing part. Related contents will be described in more detail below.

The handle is a configuration for rotating the pin. When the handle is rotated, the body and the coupling part can rotate together. The handle may be shaped to protrude from the body to facilitate gripping. The handle may have a window. The operator can rotate the body with the handle grasped, or the operator can rotate the body by coupling the instrument to the window and rotating the instrument.

The elastic member is configured to provide an elastic force so that the pin can be fixed to the fixing portion. The elastic member can provide a sufficiently strong elastic force against release of the pin and the fixing portion against external forces that may occur during operation of the mechanical device, and thereby vibrations.

The elastic member may be configured to generate a restoring force in a direction against deformation when the deformation occurs. For example, the elastic member may be a steel spring, a rubber spring, a gas spring and a ball / hydraulic spring and the like.

The elastic member is located at the rear of the pin, so that it can be compressed by the body rear when the pin is reversed.

The fixing portion is configured to fix the pin by engaging with the engaging portion of the pin.

The fixing portion may have a groove that can receive the engaging portion of the pin.

The coupling part may be inserted into the groove by the restoring force of the elastic member, and the coupling part may be in close contact with the groove to couple the pin and the fixing part.

When the coupling portion of the pin is inserted into the groove, the groove may be manufactured in the same or slightly larger size than the coupling portion to prevent the rotation of the pin. The groove may have a rotation preventing wall, and the coupling part may be prevented from being rotated by the rotation preventing wall.

In addition, when the engaging portion of the pin is inserted into the groove, the pin cannot be blocked by the fixed portion forward. In addition, the pin cannot move backwards unless a force greater than the elastic force of the elastic member acts backward.

The pinning device may further include a guide part and a support part.

The guide portion may be a configuration for guiding the forward and backward movements of the pin.

By the guide part, the pin can move linearly without shifting the direction of forward and backward movements. By the guide portion, the pin can be fixed without moving up and down or left and right. The guide portion may be one component of the pin retaining device, or the guide portion may be part of a component joined by the pin.

The support part may be positioned behind the pin and prevent the retraction of the elastic member so that the elastic member is compressed when the pin is retracted. As the distance between the support and the pin is narrowed, the elastic member may be compressed.

The support may be a component of the pinning device, or the support may be a part of the component joined by the pin.

3 is a perspective view illustrating the pin fixing device in a state where the pin fixing device is fixed according to an embodiment of the present invention. 4 is a cross-sectional view illustrating a cross section of the pinning device of FIG. 3.

3 and 4, as compared with FIGS. 1 and 2, it can be seen that the pin is retracted, and thus the elastic member is compressed. At this time, it can be seen that the coupling portion is rotated as compared to FIGS. 1 and 2 so that the coupling portion can be coupled to the fixed portion. It can be seen that the elastic member pushes the body rear portion forward by the restoring force, and thus the coupling portion is inserted and pressed into the groove of the fixing portion. The coupling part is prevented from rotating in the fixing part, and the coupling between the pin and the fixing part can be maintained as long as an external force greater than the restoring force is applied to the pin to the rear.

Advantages of the pin fixing device by fixing the pin by the elastic member are as follows.

The pin can be easily fixed or detached by a simple action of pressing and rotating the pin.

The conventional pin coupling method was complicated, time-consuming and laborious. For example, it was common to use a separate bolt to prevent the pin from rotating. At this time, there was a problem that a separate process of rotating the bolt numerous times is necessary to assemble or release the pins. In addition, there is a problem that the rotation is more difficult when the bolt is partially deformed or broken.

The pin fixing device can solve this problem by using an elastic member.

Since the elastic member can be compressed when a force greater than the restoring force is applied, the operator can easily detach the pin from the fixing part by compressing the elastic member by applying an external force of a predetermined size or more.

In addition, since the elastic member moves forward by itself by the restoring force of the elastic member, the operator can remove the external force and allow the pin to move forward, so that the operator can simply remove the pin from the fixing device or couple the pin in close contact with the fixing part.

Therefore, the pin fixing device can provide a very simple method of fixing and detaching the pins compared to the conventional pin coupling method.

Another advantage is that the elastic member of the pinning device can act as a damper against vibration.

Unnecessary vibrations during the operation of the mechanical device may be a factor that weakens the durability of the mechanical device in the long term, such as loosening the coupling between the parts and causing breakage of the parts.

The pin retaining device can attenuate undesired vibrations and prevent the transmission of vibrations by joining parts using elastic members. Therefore, the phenomenon that the coupling between the parts is weakened, such as the loosening of the bolt, which can be generated by the vibration can be prevented.

In addition, while the vibration is generated, the pin may be continuously in contact with the fixing part by the elastic force of the elastic member.

5 is a view showing in sequence the operation of changing the pin holding device from the detached state to the fixed state according to an embodiment of the present invention.

Referring to Figure 5 (a), the pin and the fixing portion is in a separated state. The extension direction of the coupling portion does not face the fixing portion so that the coupling portion of the pin does not engage with the fixing portion. For example, the direction in which the engagement portion protrudes may be directed to 0 ° or 180 ° on a plane perpendicular to the front-back direction in which the body extends.

Referring to Figure 5 (b), after the external force is applied to the pin back, thereby compressing the elastic member. As a result, a space enough to rotate the coupling unit with respect to the fixing unit may be secured.

Referring to FIG. 5C, the pin may then rotate. At this time, the elastic member can still remain compressed. As the pin rotates, the coupling portion may be positioned at a position where the coupling portion and the fixing portion may be coupled. For example, the protruding extension direction of the engaging portion may be directed at 90 ° or 270 ° on a plane perpendicular to the front-back direction. The direction of rotation can be clockwise or counterclockwise, for example.

Referring to FIG. 5 (d), the external force may be removed and the pin may move forward by the restoring force of the elastic member. When the engaging portion is inserted into the groove in the fixing portion and engaged, the advance of the pin is stopped. In the locked state, the pin cannot rotate, cannot advance, and cannot reverse unless a force greater than the restoring force acts backwards.

Through the above process, the pin can be changed from the separated state to the fixed state.

6 is a view showing in sequence the operation of changing the pin holding device from the detached state to the fixed state according to an embodiment of the present invention.

Referring to Figure 6 (a), the pin is coupled to the fixed portion is fixed. The engaging portion of the pin may be inserted and tightly inserted into the groove in the fixing portion. The protruding extension direction of the engagement portion can, for example, be directed at 90 ° or 270 ° on a plane perpendicular to the front-back direction.

Referring to Figure 6 (b), after the external force is applied to the pin back, thereby compressing the elastic member. As a result, the coupling part can be separated from the groove, and a space enough for the coupling part to rotate relative to the fixing part can be secured.

Referring to FIG. 6C, the pin may then rotate. At this time, the elastic member can still remain compressed. As the pin rotates, the projecting extension direction of the coupling portion may not face the groove so that the coupling portion cannot be inserted into the groove. For example, the protruding extension direction of the engaging portion may be directed to 0 ° or 180 ° on a plane perpendicular to the front-back direction. The direction of rotation can be clockwise or counterclockwise, for example.

Referring to FIG. 6 (d), the external force may be removed and the pin may move forward by the restoring force of the elastic member. Even if the pin is advanced, the pin can be separated without being fixed since the direction of the engaging portion does not face the fixing part.

Through the above process, the pin can be changed from the fixed state to the separated state.

In the above description of the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art that such changes or modifications fall within the scope of the appended claims.

Pin Retainer 10
Pin 100
Body 120
Coupling 140
Handle 160
Fixing part 200
Home 220
Elastic member 300
Guide part 400
Support 500

Claims (4)

A pin fixing device for fixing a pin by using the restoring force of the compressed elastic member,
Base;
A pair of first guide parts each provided in a plate shape having through holes, spaced apart from each other by a predetermined distance along a moving direction of the pin so that the main surfaces thereof face each other, and extending vertically from one surface of the base; A second guide part;
A support part extending vertically from one surface of the base so as to be disposed in an opposite direction of the second guide part with respect to the first guide part, and extending to a first height higher than an upper portion of the through hole;
The second guide portion is formed to extend in a vertical direction from one surface of the base to be disposed in the opposite direction of the first guide portion, extends to a second height lower than the lower portion of the through hole, facing the second guide portion A fixing part having a groove formed on a surface thereof, the groove having a rotation preventing wall for preventing rotation of the pin; And
A body extending in the moving direction of the pin and inserted into the through hole, an elastic member formed at one end of the body and compressed in contact with the support when moving in the direction in which the body is inserted, the other end of the body Is provided in a plate shape having a different width and length from each other, the width direction is rotated to a second position perpendicular to one surface of the base and the longitudinal direction is rotated to a first position perpendicular to one surface of the base to change the attitude It is possible to include a coupling having a cross-sectional area larger than the cross-sectional area of the through hole,
When the posture is changed from the second position to the first position between the second guide portion and the fixing portion, it is inserted into and fixed to the groove of the fixing portion,
When the posture is changed from the first position to the second position, the pin is advanced by the restoring force of the elastic member and separated from the fixing portion;
Pin retainer.
The method of claim 1,
The engaging portion in the second position is rotated by 90 ° relative to the engaging portion in the first position.
Pin retainer.
The method of claim 1,
The pin fixing device,
It is formed in the front of the body, and further comprising a handle for rotating the coupling portion
Pin retainer.
According to claim 1,
The pin is cylindrical to facilitate rotation,
The coupling part is plate-shaped
Pin retainer.

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