KR200421497Y1 - Structure for separation preventing pin of a hinge - Google Patents

Abstract

Disclosed is a release preventing structure of a hinge shaft. The structure includes a first fixing member having a supporting part having support holes respectively formed on both sides thereof, a second fixing member having a rotating hole and a coupling part disposed between the supporting parts so as to coincide with each supporting hole, and the supporting hole and A hinge consisting of a shaft for connecting the first fixing member and the second fixing member rotatably through a rotating hole, the outer peripheral surface of the shaft is formed with at least one annular engaging groove, the shaft between the support and the coupling portion When the penetrating the support hole and the rotation hole is interrupted to the locking groove to prevent the departure of the shaft is to be disposed is arranged. According to the present invention, the locking end is inserted into the locking groove by only inserting the shaft into the release preventing device, and the deviation of the shaft can be prevented, and the release preventing device made of synthetic resin is lubricated and reduced noise between the first and second fixing members. It works. In addition, the insertion portion can be closely inserted into the rotating hole without play by the protrusion formed in the escape prevention.

Hinges, Shafts, Breakaways

Description

Breakaway prevention structure of the hinge shaft {STRUCTURE FOR SEPARATION PREVENTING PIN OF A HINGE}

1 is an exploded perspective view showing a shaft departure prevention structure according to a preferred embodiment of the present invention.

Figures 2a, 2b is a front view and a side cross-sectional view showing the departure prevention tool shown in FIG.

Figure 3a, 3b is a cross-sectional view showing the operating state of the shaft departure prevention structure shown in FIG.

Figure 4 is a cross-sectional view showing a state in which a protrusion is formed in the insertion portion of the shaft departure preventing structure according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: first fixing member 12: support hole

14: support 20: second fixing member

22: rotating hole 24: coupling portion

30: shaft 32: locking groove

40: departure prevention tool 42: insertion portion

42A: shaft insertion hole 44: flange portion

45: protrusion 46: operator

48: hanging end 48A: incision groove

49: chamfer

The present invention relates to a structure for preventing the release of the hinge shaft, in particular to form a locking groove in the hinge shaft, the separation prevention member is disposed between the fixing member to form a locking end having an elastic force and the shaft is separated from each fixing member When penetrating the guard, the locking end is inserted into the locking groove of the shaft by the elastic force to prevent the shaft from being detached and at the same time, the escape guard is provided on the hinge prevention shaft structure to minimize the friction noise between the fixing members. It is about.

In general, the hinge is installed through the first fixing member fixed to the door frame (or window frame), the second fixing member fixed to the door (or window), the first fixing member and the second fixing member, It consists of a shaft to allow the two fixing members to be rotatably coupled to each other.

However, since the hinge according to the prior art having such a structure does not have a separate means for preventing the shaft from being separated from each holding member, the shaft is separated from each holding member and the first and second fixing members are separated. It caused a problem.

In order to solve this problem, structures have been proposed in which a snap ring is installed on the shaft or a cap is installed at the end of the shaft to prevent the shaft from being separated. In this case, the installation is complicated, the manufacturing cost is increased, and friction noise is generated. This was there.

The present invention is devised to solve the problems of the prior art as described above, the technical problem of the present invention can be prevented from the departure of the shaft only by the operation of sandwiching the shaft between each holding member, friction during the rotating operation of the metal holding member To provide a means to minimize the noise.

In order to solve the above technical problem, the present invention,

A second fixing member having a first fixing member formed on both sides of the support having a support hole, a second fixing member having a rotating hole and a coupling part disposed between the supporting parts so as to match each supporting hole, and the supporting hole and the rotating hole. As a hinge made of a shaft for penetrating and connecting the first fixing member and the second fixing member rotatably,

At least one annular engaging groove is formed on the outer circumferential surface of the shaft,

Between the support portion and the coupling portion when the shaft penetrates the support hole and the rotating hole is provided with a separation prevention structure for the hinge shaft, characterized in that the separation preventing means for preventing the separation of the shaft is disposed. .

The release preventing port is formed to be inserted into the rotating hole, the insertion portion is formed in a hollow cylindrical shape is formed in the shaft insertion hole therein;

A flange portion formed on the other side of the insertion portion to be in contact with each end surface of the support portion and the coupling portion;

An operation hole formed in a longitudinal direction of the insertion portion in a portion of the flange portion region in contact with the insertion portion; And

A cutout groove is formed in a portion of the insertion portion of the operating hole region in the center direction of the shaft insertion hole, and the middle portion has an elastic force in the state in which both ends thereof are connected to the insertion portion by the cutaway groove, and toward the center direction of the shaft insertion hole. Includes; is bent and formed;

When the shaft passes through the shaft insertion hole of the insertion portion through the support hole is characterized in that the locking end is elastically inserted into the locking groove to prevent the shaft from being separated.

The shaft insertion hole edge of the flange portion region is characterized in that the chamfer is formed for smooth insertion of the shaft.

At least one protrusion is formed on an outer circumferential surface of the insert.

Preferred embodiments of the present invention having such features will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a shaft departure prevention structure according to a preferred embodiment of the present invention, Figures 2a, 2b is a front view and a side cross-sectional view showing the departure prevention tool shown in FIG.

As shown in FIGS. 1 and 2A and 2B, the hinge includes a first fixing member 10 fixed to a door frame or a window frame, a second fixing member 20 fixed to a door or a window, and the first and second parts 1 and 2. Penetration through the separation prevention portion 40 disposed between the support portion 14 and the coupling portion 24 of the fixing member (10, 20), the first and second fixing members (10, 20) and the separation prevention portion (40) It consists of a shaft (30).

Looking at this in more detail as follows.

At least one locking groove 32 is formed in the shaft 30 rotatably connecting the first fixing member 10 and the second fixing member 20, as shown in FIG. ) Is formed in an annular shape. Then, at the end of the shaft 30 is a chamfer for easy insertion into the support hole 12 and the shaft insertion hole 42A.

The separation preventing member 40 is disposed between the support part 14 and the coupling part 24 as shown in 2a and 2b so that the shaft 30 is caught when the shaft 30 penetrates the support hole 12 and the rotating hole 22. Interfering with the groove 32 to prevent the separation of the shaft 30, it is formed into a hollow cylindrical shape to be inserted into the rotating hole, the insertion portion 42, the shaft insertion hole 42A formed therein, and the support portion 14 ) And a flange portion 44 formed on the other side of the insertion portion 42 so as to contact each end face of the coupling portion 24 and a portion of the region of the flange portion 44 in contact with the insertion portion 42. An operating hole 46 formed in the longitudinal direction of the cutting hole 48A is formed in the center of the shaft insertion hole 42A in the insertion portion 42 of the operating hole 46 region, and the cutting groove 48A is formed. It is composed of a locking end 48 that is bent in the center direction of the shaft insertion hole 42A so that the middle portion has an elastic force in a state where both ends are connected to the insertion portion 42 by the (). Therefore, the locking end 48 can be deformed with an elastic force in the direction of the arrow shown in FIG. 2A (in the direction of the operating hole 46).

At least one protrusion that is in close contact with the inner circumferential surface of the rotary hole 22 to prevent flow in the state inserted into the rotary hole 22, as shown in Figure 4 on the outer peripheral surface of the insertion portion 42 of the separation prevention tool 40 45 is formed to protrude. Since the protrusions 45 are formed in the lengthwise direction of the insertion part 42, each of the protrusions 45 is in close contact with the inner diameter of the rotating hole 22, as shown in FIG. 4. It does not flow in the rotating hole 22.

A chamfer 49 is formed at the inlet edge of the shaft insertion hole 42A to facilitate insertion of the shaft 30. The chamfer 49 is also formed at each corner of the locking end 48.

Referring to the operation of the present invention configured as described above in detail based on Figures 3a, 3b as follows.

As shown in FIG. 3A, the support hole 12 of the first fixing member 10 in a state where the insertion part 42 of the release preventing member 40 is inserted into the rotation hole 22 of the second fixing member 20 is shown. ) Coincides with the rotation hole 22 of the second fixing member 20.

In this state, when the shaft 30 is moved to the rotation hole 22 side through the support hole 12, the shaft 30 is inserted into the shaft insertion hole 42A and the locking end 48 protruding at the entrance thereof is formed. Push outward to deform.

That is, the shaft 30 is pushed toward the operating hole 46 while the shaft 30 is inserted into the locking end 48 which protrudes toward the center of the shaft insertion hole 42A, and the shaft 30 is the shaft insertion hole 42A. Is fitted. At this time, the locking end 48 is provided with an elastic force while being deformed to the operating hole 46 side.

Subsequently, as shown in FIG. 3B, when the locking end 48 is positioned in the locking groove 32 of the shaft 30, the locking end 48 returns to its original state by its own elastic force and is caught by the locking groove 32.

In other words, the locking end 48 is compressed when it comes in contact with the outer circumferential surface of the shaft 30 and is inserted into the locking groove 32 while being restored to its original state by the elastic force in the locking groove 32 region.

As such, the locking end 48 of the release preventing tool 40 is inserted into the locking groove 32 of the shaft 30 by the operation of inserting the shaft 30 through the support hole 12, and thus, the shaft 30. Deviation of can be prevented.

Meanwhile, as shown in FIGS. 3A and 3B, the flange part 44 of the separation preventing member 40 is disposed between the support part 14 and the coupling part 24 to form the first and second fixing members 10 made of metal. 20) do not touch each other to prevent noise.

In addition, since the inner diameter of the support hole 12 and the inner diameter of the rotary hole 22 are formed larger than the outer diameter of the shaft 30, the shaft 30 is supported by the shaft insertion hole 42A of the release preventing tool 40. As a result, the inner diameter of the support hole 12 and the rotating hole 22 are not contacted.

As described above, the separation preventing device 40 according to the present invention prevents the separation of the shaft 30, as well as between the first and second fixing members 10 and 20. It is possible to prevent noise by preventing direct contact.

The anti-separation structure of the hinge shaft according to the present invention is to prevent the detachment of the shaft by being inserted into the locking groove formed on the shaft with the locking end of the separation prevention tool provided between the first and second fixing members to prevent the deviation of the shaft. According to the present invention, the end of the shaft can be prevented from being inserted into the locking groove by only inserting the shaft into the release preventing tool, and the release preventing tool made of synthetic resin prevents lubrication and noise reduction between the first and second fixing members. Will be In addition, the insertion portion can be closely inserted into the rotary hole without play by the protrusion formed in the escape prevention.

Claims (4)

A first fixing member having support portions having support holes formed at both sides thereof, respectively; A second fixing member having a coupling part disposed between the supporting parts so as to correspond to each of the supporting holes; And A hinge configured to pivotally connect the first fixing member and the second fixing member through the supporting hole and the rotating hole, At least one annular engaging groove is formed on the outer circumferential surface of the shaft, When the shaft passes through the support hole and the rotation hole between the support portion and the engaging portion is separated from the hinge groove to prevent the departure of the shaft, the separation prevention structure of the hinge shaft, characterized in that disposed. The method of claim 1, wherein the separation prevention opening is formed to be inserted into the rotating hole, the insertion portion formed in a cylindrical shape is formed therein the shaft insertion hole; A flange portion formed on the other side of the insertion portion to be in contact with each end surface of the support portion and the coupling portion; An operation hole formed in a longitudinal direction of the insertion portion in a portion of the flange portion region in contact with the insertion portion; And A cutout groove is formed in a portion of the insertion portion of the operating hole region in the center direction of the shaft insertion hole, and the center portion of the shaft insertion hole is provided such that the middle portion has elastic force in a state in which both ends are connected to the insertion portion by the cutting groove. Includes; is bent to be formed by When the shaft passes through the shaft insertion hole of the insertion portion through the support hole, the locking end is elastically inserted into the locking groove to prevent the separation of the hinge shaft, characterized in that preventing the departure of the shaft. The method of claim 2, wherein the shaft insertion hole edge of the flange portion region of the hinge shaft, characterized in that the chamfer for the smooth insertion of the shaft is formed. The structure of claim 2 or 3, wherein at least one protrusion is formed on an outer circumferential surface of the insertion part.

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