CN201173247Y - Easy-to-open and-close hinge sheet type hinge - Google Patents

Abstract

The utility model relates to an easily open and closed loose-leaf piece formula hinge establishes a mandrel in the pivot on a loose-leaf piece, has a plane on the mandrel, and the elasticity portion of loose-leaf piece has a straight portion, and the internal diameter of elasticity portion and the external diameter of mandrel have the interference volume, can make the hinge easily open and close to reach the purpose of simplifying and constituting the subassembly, reducing equipment process and reduce cost.

Description

Leaf hinges for easy opening and closing

technical field

The utility model relates to a loose-leaf hinge that is easy to open and close, in particular to a loose-leaf hinge suitable for portable electronic devices.

Background technique

Known technology such as the Chinese Taiwan Patent No. M296586 "Rotating Shaft Structure Case with Automatic Locking" (corresponding to Chinese Utility Model No. 200620001995.4) owned by the applicant in this case and announced on August 21, 2006 mainly uses the shaft member The shaft column 11 of 1 passes through the sheet-shaped friction plate 3, the sheet-shaped coupling piece 4, the cam member 5, and the elastic body 6 in order to be locked on the main frame body 2; wherein, the cam member 5 is formed by a fixing piece 51 and a sliding piece 52; and when the shaft member 1 rotates, the wedge-shaped groove 522 of the sliding piece 52 can be slid and buckled into the wedge-shaped block 512 of the fixing piece 51 by the action of the elastic body 6 , in order to achieve the purpose of automatic locking.

However, if the purpose of reducing the assembly process and cost is to be achieved, the components must be further simplified.

Utility model content

Therefore, the main purpose of this utility model is to provide a loose-leaf hinge that is easy to open and close. A hinge is pivotally installed on a hinge with a flat surface and the elastic portion of the hinge has a flat surface. The inner diameter of the elastic part and the outer diameter of the mandrel have an interference amount, which can make the hinge easy to open and close, so as to simplify the components, reduce the assembly process and reduce the cost.

The technical scheme that the utility model solves its technical problem adopts is:

A loose-leaf hinge that is easy to open and close, comprising:

a mandrel fixable to the cover; and

A loose-leaf piece that can be fixed on the base has an elastic portion, and the elastic portion has an opening and a straight portion; wherein, the mandrel is pivotally arranged on the elastic portion of the loose-leaf piece, and the outer diameter of the mandrel is the same as The inner diameter of the elastic part has an interference amount, the mandrel has a plane that fits on the straight part, the fixed end of the loose leaf has an initial position, and the initial position forms an angle α with the bottom surface of the cover.

A loose-leaf hinge that is easy to open and close, comprising:

a mandrel fixable to the base; and

A loose-leaf piece that can be fixed on the cover has an elastic portion, and the elastic portion has an opening and a straight portion; wherein, the mandrel can be pivotally arranged on the elastic portion of the loose-leaf piece, and the inner diameter of the elastic portion is the same as The outer diameter of the mandrel has interference, and the mandrel has a flat surface that can fit on the straight part. The fixed end of the loose leaf has an initial position, and the initial position forms an angle β with the top surface of the base.

The beneficial effects that the utility model has are:

When the mandrel is fixed to the cover, the mandrel can make the bottom surface of the cover and the fixed end of the loose-leaf form an angle α, or when the mandrel is fixed to the base, the mandrel can make the top surface of the base and the loose-leaf The fixed end is at an angle of β, so that a reset force can be formed between the mandrel and the loose-leaf piece, the components are greatly simplified, the assembly process is reduced, and the cost is reduced. Furthermore, the elastic part of the loose-leaf is provided with an opening, and the inner diameter of the elastic part has an interference amount with the mandrel. When the mandrel and the loose-leaf rotate relative to each other, the mandrel can be stretched apart from the elastic part to avoid opening the cover. , lift the base together.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the three-dimensional schematic diagram of this creation;

Fig. 2 is the three-dimensional exploded view of this creation;

Fig. 3 is another perspective view of Fig. 1;

Fig. 4 is another perspective view of Fig. 2;

Fig. 5 is a partial sectional view of a preferred implementation state;

Fig. 6 is a partial sectional view of the mandrel disposed on the cover;

Fig. 7 is a partial sectional view of the second implementation state;

FIG. 8 is a partial cross-sectional view of the mandrel disposed on the base.

Detailed ways

In order to further understand the features, technical means, and achieved specific functions and objectives of the present utility model, more specific embodiments are listed hereafter, which are described below in conjunction with the accompanying drawings.

Please refer to Fig. 1 to Fig. 6, the preferred embodiment of the present utility model includes: mandrel 10 and loose-leaf leaf 20, mandrel 10 has pivot joint 11, and pivot joint 11 is provided with plane 12, oil storage Groove 13 and stopper 14, leaflet 20 has elastic part 21 and stopper 24, and elastic part 21 is provided with opening 22 and straight part 23; The elastic portion 21 of the leaflet 20 and the stopper 14 of the mandrel 10 can resist the stopper 24 of the leaflet 20 to limit the rotation angle of the mandrel 10, that is, the rotation angle of the mandrel 10 is between the stops. Between the stopper 14 and the stopper 24, the mandrel 10 can be embedded in the cover 1 (for example: the display cover of a portable electronic device), or the fixed end of the mandrel 10 is provided with a fixing hole 15 to lock Fixed on the cover 1, the fixed end 25 of the loose-leaf 20 can be provided with a fixing hole 251 and directly fixed on the base 2 (for example: the base of a portable electronic device), or the fixed end 25 of the loose-leaf 20 can be Combine with an extension piece (not shown in the figure) and then be fixed on the base 2 by the extension piece.

As shown in FIG. 5 , when the mandrel 10 rotates, since the elastic portion 21 is provided with an opening 22 and the outer diameter of the pivotal portion 11 interferes with the inner diameter of the elastic portion 21 , the pivotal portion 11 of the mandrel 10 The elastic part 21 of the leaflet 20 can be stretched, so that the cover 1 is easy to open from the base 2, and the base 2 is avoided when the cover 1 is opened. When the mandrel 10 is reset, the plane of the mandrel 10 12 will be close to the inner surface 231 of the straight part 23, under the clamping force of the elastic part 21, the plane 12 has a tendency to be attached to the inner surface 231, thereby forming a reset force, so that the cover body 1 is easy to contact with the base The seat 2 is closed, the components are greatly simplified, the assembly process is reduced, and the cost is reduced.

As shown in Figure 6, when the mandrel 10 is arranged on the cover body 1, if the plane 12 of the mandrel 10 is attached to the inner surface 231 of the straight part 23, the mandrel 10 can make the bottom surface 1a of the cover body 1 and the loose-leaf piece The fixed end 25 of 20 forms an angle α, that is, the fixed end 25 of the leaflet 20 has an initial position, and the initial position forms an angle α with the bottom surface 1a of the cover body 1, so that the mandrel 10 and the elastic portion 21 can be To form a better reset force, the preferred value of α angle can be minus 3 to minus 10 degrees, or minus 3 to minus 5 degrees, or minus 5 to minus 10 degrees, or minus 6 to minus 8 degrees, and All are modes that the utility model can implement.

Furthermore, the second embodiment of the present utility model includes: a mandrel 10 and a loose-leaf piece 20, the mandrel 10 has a pivot joint 11, and the pivot joint 11 is provided with a plane 12, an oil storage groove 13 and a stopper 14 , the hinge 20 has an elastic portion 21 and a stop portion 24, and the elastic portion 21 is provided with an opening 22 and a straight portion 23; wherein, the pivotal portion 11 of the mandrel 10 can be pivotally arranged on the elastic portion 21 of the hinge 20 , the stopper 24 of the leaflet 20 can also abut against the stopper 14 of the mandrel 10 to limit the rotation angle of the leaflet 20, that is, the rotation angle of the leaflet 20 is between the stopper 14 and the stopper Between 24, the mandrel 10 can be fixed on the base 2 (for example: the base of a portable electronic device), or the fixed end of the mandrel 10 is provided with a fixing hole 15 that can be locked on the base 2, and the loose-leaf The fixed end 25 of the sheet 20 can be provided with a fixing hole 251 and be directly fixed on the cover body 1 (for example: the display cover body of a portable electronic device), or the fixed end 25 of the loose-leaf sheet 20 can be combined with an extension sheet (not shown in the figure). Shown) is fixed on the cover body 1 by this extension piece again.

Please refer to FIG. 7, in the second embodiment, when the hinge 20 rotates, since the elastic portion 21 is provided with an opening 22, and the inner diameter of the elastic portion 21 interferes with the outer diameter of the pivotal portion 11, therefore, The elastic part 21 of the loose-leaf piece 20 can be stretched by the pivotal part 11 of the mandrel 10, so that the cover body 1 can be easily opened from the base 2, so as to prevent the base 2 from being lifted together when the cover body 1 is opened, and the loose-leaf piece 20 When resetting, the inner surface 231 of the straight part 23 will approach the plane 12 of the mandrel 10, and under the action of the clamping force of the elastic part 21, the inner surface 231 of the straight part 23 will tend to stick to the plane 12 , so as to form a reset force, so that the cover body 1 can be easily closed with the base 2, the components are greatly simplified, the assembly process is reduced, and the cost is reduced.

Please refer to FIG. 8, in the second embodiment, when the mandrel 10 is set on the base 2, if the inner surface 231 of the straight portion 23 is attached to the plane 12 of the mandrel 10, the mandrel 10 can make the base The top surface 2a of the seat 2 and the fixed end 25 of the loose-leaf piece 20 form an angle of β, that is, the fixed end 25 of the loose-leaf piece 20 has an initial position, and the initial position forms an angle of β with the top surface 2a of the base 2, so that A better restoring force can be formed between the elastic part 21 and the mandrel 10, and the preferred value of the β angle can be negative 3 to negative 10 degrees, or negative 3 to negative 5 degrees, or negative 5 to negative 10 degrees, Or be minus 6 to minus 8 degrees, and all are the implementable modes of the present utility model.

Claims (10)

1. A loose-leaf hinge that is easy to open and close, characterized in that it comprises: a mandrel fixable to the cover; and A loose-leaf piece that can be fixed on the base has an elastic portion, and the elastic portion has an opening and a straight portion; wherein, the mandrel is pivotally arranged on the elastic portion of the loose-leaf piece, and the outer diameter of the mandrel is the same as The inner diameter of the elastic part has an interference amount, the mandrel has a plane that fits on the straight part, the fixed end of the loose leaf has an initial position, and the initial position forms an angle α with the bottom surface of the cover. 2 . The easy-to-open and close loose-leaf hinge according to claim 1 , wherein the angle α is minus 3 to minus 10 degrees. 3. The loose-leaf hinge that is easy to open and close according to claim 1, wherein the mandrel has a stopper, and the hinge has a stopper, and the rotation angle of the mandrel is between between the mandrel stop and the leaflet stop. 4. The loose-leaf hinge that is easy to open and close according to claim 1, wherein an oil storage groove is provided on the spindle. 5 . The easy-to-open and close loose-leaf hinge according to claim 1 , wherein the fixed end of the mandrel is provided with a fixed hole, and the fixed end of the hinge is provided with a fixed hole. 6. A loose-leaf hinge that is easy to open and close, characterized in that it includes: a mandrel fixable to the base; and A loose-leaf piece that can be fixed on the cover has an elastic portion, and the elastic portion has an opening and a straight portion; wherein, the mandrel can be pivotally arranged on the elastic portion of the loose-leaf piece, and the inner diameter of the elastic portion is the same as The outer diameter of the mandrel has interference, and the mandrel has a flat surface that can fit on the straight part. The fixed end of the loose leaf has an initial position, and the initial position forms an angle β with the top surface of the base. 7. The easy-to-open and close loose-leaf hinge according to claim 6, wherein the β angle is minus 3 to minus 10 degrees. 8. The loose-leaf hinge that is easy to open and close according to claim 6, characterized in that, the hinge has a stopper, and the mandrel has a stopper, and the rotation angle of the hinge is between between the leaflet stop and the mandrel stop. 9. The loose-leaf hinge that is easy to open and close according to claim 6, wherein an oil storage groove is provided on the mandrel. 10 . The easy-to-open and close loose-leaf hinge according to claim 6 , wherein the fixed end of the mandrel is provided with a fixed hole, and the fixed end of the hinge is provided with a fixed hole. 11 .

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