CN201896854U - Self-closing twin hinges - Google Patents

Abstract

An automatic closing twin-hinge device mainly comprises a twin-supporting frame and a rotating shaft structure. The double-cell support is provided with a first sleeve part and a second sleeve part which are bent reversely, and the free tail end of each sleeve part forms a notch; at least one of the first sleeve part is provided with a groove or a notch on the inner side surface. The rotating shaft structure is provided with a shaft part for the two sleeve parts bent reversely to be sleeved to provide elastic force, so that the double bearing frame can rotate by taking the shaft part as a center and can be positioned at any angle; and, the round outer surface of the shaft part forms a projection corresponding to the groove or the notch, and the projection falls into the groove or the notch when the double-cell support frame rotates to 0 degree to provide the automatic closing function.

Description

Self-closing twin hinges

technical field

The utility model relates to an innovative structural design of a double hinge device, in particular to a double hinge device with automatic closing function used in folding electronic products.

Background technique

Foldable electronic products, such as notebook computers and translators, have a main body and a top cover with a display screen that can be lifted. An angle can be positioned for use.

Due to the need for compactness, the space occupied by the hub is required to be reduced as much as possible, and there is a design of a twin hub, such as China TW New Patent Announcement No. The oil groove of the support frame", M323793 "Double bushing with reinforcing ribs in the R corner of the hinge device", M292719 "Hinge device with auxiliary support frame" and other related previous cases disclosed. The twin hub mainly has a base fixed on the body of the foldable electronic product, the base is connected with a shaft part, and the shaft part is connected with two oppositely bent sleeve parts of a twin support frame connected to the upper cover fit together, so that the twin support frame can be rotated around the shaft and positioned at any angle.

However, in order to prevent the upper cover and the main body of the foldable electronic product from being opened during transportation, an autolock function is usually required in the hinge. This function is mostly achieved by setting a concave-cam structure on the shaft in the hub; however, it is impossible to set a concave-cam structure on the shaft in the twin hub; If it has automatic closing function, it must be designed separately.

In the previous case of China TW new patent certificate number M377055 "automatic closing hinge", a design is provided for the automatic closing function of the double hinge, as shown in Figure 9, which is formed on the sleeve part. The flat part, and the shaft part also forms a corresponding flat part, and the flat part on the sleeve part and the flat part of the shaft part will fit each other when the hinge turns to 0 degrees, so as to achieve the automatic closing function.

This design makes the originally cylindrical sleeve part deform, which will make the sleeve part that provides elastic force prone to the problem of elastic decay, especially after the hinge is opened and closed many times, the sleeve part It can no longer return to the cylindrical shape, and the supporting force of the hinge is also degraded, which greatly affects the service life.

Contents of the invention

Therefore, the purpose of this utility model is to provide a self-closing twin hinge, which has a simple structure and is easy to operate, and the sleeve is not easily deformed while providing the self-closing function, and the problem of elastic decay is eliminated.

In order to achieve the above purpose, the utility model discloses an automatic closing twin hinge, which is characterized in that it includes:

A double support frame has a connecting piece, a side of the connecting piece obliquely extends a fixing piece, and the distal end of the fixing piece away from the connecting piece forms two oppositely bent first and second sleeve parts, A gap is formed between the free end of each sleeve portion and the fixing piece; a groove is opened on the inner surface of the first sleeve portion; and

A rotating shaft structure, with a sleeve for the two oppositely bent first and second sleeve parts to provide elastic force and enable the twin support frame to rotate around the shaft part and be positioned at any angle Shaft portion; one end of the shaft portion is fixedly connected to a fixed seat; the circular outer surface of the shaft portion forms a hole that falls into the groove when the twin support frame rotates to 0 degrees relative to the groove to provide an automatic closing function bump.

Wherein, the groove does not penetrate the outer surface of the first sleeve, and the first sleeve is a complete cylinder.

Wherein, at least one of the rotational contact surfaces of the groove and the protrusion is a slope surface.

Wherein, the rotating contact surfaces of the groove and the protrusion are both slope surfaces.

Also disclosed is a self-closing twin hub, characterized in that it includes:

A double support frame has a connecting piece, a side of the connecting piece obliquely extends a fixing piece, and the distal end of the fixing piece away from the connecting piece forms two oppositely bent first and second sleeve parts, A gap is formed between the free end of each sleeve portion and the fixing piece; a slit is opened in the radial direction on the inner surface of the first sleeve portion; and

A rotating shaft structure, with a sleeve for the two oppositely bent first and second sleeve parts to provide elastic force and enable the twin support frame to rotate around the shaft part and be positioned at any angle Shaft part; one end of the shaft part is fixedly connected to a fixed seat; the circular outer surface of the shaft part forms a protrusion relative to the cutout to fall into the cutout when the twin support frame rotates to 0 degrees to provide an automatic closing function.

Wherein, the cutout penetrates the outer surface of the first sleeve part.

Wherein, at least one of the notch and the rotational contact surface of the protrusion is a slope surface.

Wherein, the notch and the rotating contact surface of the protrusion are both slope surfaces.

Through the above structure, an automatic closing double hinge of the utility model not only has an automatic closing function designed in the double hinge, but also because the first sleeve part can maintain a cylindrical shape, the hinge can be opened and closed for a long time It can still provide good elastic force, and the problem of elastic decay is not easy to occur, so that the service life is greatly extended, which is far better than the conventional one.

Hereinafter, the structural features and usage effects of the present utility model will be described in detail according to the embodiments shown in the drawings.

Description of drawings

Fig. 1 represents the exploded view of the utility model first kind of embodiment,

Fig. 2 represents the combined diagram of the first embodiment of the utility model,

Fig. 3 represents the cross-sectional view along A A in Fig. 2, the twin support frame is at 0 degrees,

Figure 4 is the same as Figure 3, but the twin support brackets are rotated by an angle of θ,

Fig. 5 represents the exploded view of the second embodiment of the utility model,

Fig. 6 represents the combined diagram of the second embodiment of the utility model,

FIG. 6A represents an enlarged view of part A in FIG. 6 .

Detailed ways

Please refer to FIG. 1 to FIG. 3 , which are the first embodiment of the self-closing twin hinge provided by the present invention. The hinge 10 is mainly composed of a twin support frame 11 and a rotating shaft structure 12 .

The twin support frame 11 has a connecting piece 111, the connecting piece 111 is connected to the upper cover of the foldable electronic product, and a fixing piece 112 extends obliquely from one side thereof, and the fixing piece 112 is formed away from the far end of the connecting piece 111 Two oppositely bent first and second sleeve portions 113 a and 113 b form a gap 114 between the free end of each sleeve portion 113 a and 113 b and the fixing piece 112 . A groove 115 is defined on the inner surface of the first sleeve portion 113a. The groove 115 does not penetrate the outer surface of the first sleeve portion 113a, so that the first sleeve portion 113a is a complete cylinder, so that the elastic force can be maintained.

Moreover, the rotating shaft structure 12 has a shaft portion 121 for the two oppositely bent sleeve portions 113a and 113b to fit together to provide elastic force, so that the twin support frame 11 can rotate around the shaft portion 121, and at any Positioning at an angle. One end of the shaft portion 121 is fixedly connected to a fixing base 122, and the fixing base 122 is fixedly connected to the body of the foldable electronic product. Moreover, the circular outer surface of the shaft portion 121 forms a protrusion 123 relative to the groove 115, and the protrusion 123 falls into the groove 115 as shown in FIG. Provides automatic closing function.

Referring to Fig. 4, when the twin bracket 11 is rotated to an angle θ relative to the shaft portion 121, the protrusion 123 is disengaged from the groove 115, but the first sleeve portion 113a has a notch 114 for adjustment, so that the first sleeve portion 113a is still The shaft portion 121 is covered to provide elastic force. When the twin bracket 11 rotates toward 0° in the direction of arrow G in the figure, the protrusion 123 approaches the groove 115 , so that the rotational contact surface 124 of the protrusion 123 first contacts the rotational contact surface 116 of the groove 115 . The rotational contact surfaces 124 and 116 of the protrusion 123 and the groove 115 are preferably both slope surfaces, or at least one of them is a slope surface, so that the automatic closing action is smoother.

Referring to Fig. 5 and Fig. 6, it is the second embodiment of the self-closing double hinge device provided by the utility model, which is similar to the first embodiment, the hinge device 20 is mainly composed of a double bearing frame 21 and a rotating shaft structure 22 constituted.

The twin support frame 21 has a connecting piece 211, the connecting piece 211 is connected to the upper cover of the foldable electronic product, and a fixing piece 212 extends obliquely from one side thereof, and the fixing piece 212 is formed away from the far end of the connecting piece 211 Two oppositely bent first and second sleeve portions 213 a and 213 b form a gap 214 between the free end of each sleeve portion 213 a and 213 b and the fixing piece 212 . A notch 215 is defined on the inner surface of the first sleeve portion 213a. The cutout 215 penetrates the outer surface of the first sleeve portion 213a, but keeps the first sleeve portion 213a close to a complete cylinder, so that the elastic force can be maintained. The manufacture of the notch 215 is obviously simpler than that of the first embodiment of the present invention, but the elastic force provided by the first sleeve portion 213a is relatively poor.

The shaft structure 22 is the same as the first embodiment, having a shaft portion 221 , a fixing seat 222 and a protrusion 223 .

The rotation contact surfaces 224 and 216 of the protrusion 223 and the cutout 215 of the second embodiment of the hinge 20 can be matched with those shown in FIG. 6A , preferably both are slope surfaces.

Although the utility model is designed with an automatic closing function in the twin hinges, since the first sleeve part 113a or 213a can maintain a cylindrical shape, the hinge can still provide good elastic force under long-term opening and closing actions, and The problem of elastic decline is not easy to occur, which greatly prolongs the service life.

Claims (8)

1. A self-closing twin hub, characterized in that it comprises: A double support frame has a connecting piece, a side of the connecting piece obliquely extends a fixing piece, and the far end of the fixing piece away from the connecting piece forms two oppositely bent first and second sleeve parts, A gap is formed between the free end of each sleeve portion and the fixing piece; a groove is opened on the inner surface of the first sleeve portion; and A rotating shaft structure, with a sleeve for the two oppositely bent first and second sleeve parts to provide elastic force and enable the twin support frame to rotate around the shaft part and be positioned at any angle Shaft portion; one end of the shaft portion is fixedly connected to a fixed seat; the circular outer surface of the shaft portion forms a hole that falls into the groove when the twin support frame rotates to 0 degrees relative to the groove to provide an automatic closing function bump. 2 . The self-closing double-twin hinge according to claim 1 , wherein the groove does not penetrate the outer surface of the first sleeve, and the first sleeve is a complete cylinder. 3 . 3 . The self-closing twin hinge according to claim 1 , wherein at least one of the groove and the rotational contact surface of the protrusion is a slope surface. 4 . 4. The self-closing double-twin hinge according to claim 1, wherein the rotational contact surfaces of the groove and the protrusion are slope surfaces. 5. A self-closing twin hub, characterized in that it comprises: A double support frame has a connecting piece, a side of the connecting piece obliquely extends a fixing piece, and the distal end of the fixing piece away from the connecting piece forms two oppositely bent first and second sleeve parts, A gap is formed between the free end of each sleeve portion and the fixing piece; a slit is opened in the radial direction on the inner surface of the first sleeve portion; and A rotating shaft structure, with a sleeve for the two oppositely bent first and second sleeve parts to provide elastic force and enable the twin support frame to rotate around the shaft part and be positioned at any angle Shaft part; one end of the shaft part is fixedly connected to a fixed seat; the circular outer surface of the shaft part forms a protrusion relative to the cutout to fall into the cutout when the twin support frame rotates to 0 degrees to provide an automatic closing function. 6 . The self-closing twin hinge according to claim 5 , wherein the cutout penetrates the outer surface of the first sleeve portion. 7 . 7. The self-closing double-twin hinge according to claim 5, wherein at least one of the notch and the rotational contact surface of the protrusion is a slope surface. 8 . The self-closing double-twin hinge according to claim 5 , wherein the rotation contact surfaces of the cutout and the protrusion are slope surfaces. 9 .

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