CN101742024B - Hinge device for business machine - Google Patents

Abstract

The invention relates to a hinge device which is suitable for an office machine, the office machine is provided with an office machine body and a cover body, and the hinge device comprises a base, a rotating shaft and an elastic structure. The base is provided with a connecting part and a shaft sleeve part, the connecting part is connected and fixed on the office machine body, the shaft sleeve part is provided with a through hole and a baffle, and the baffle is arranged on the outer surface of the shaft sleeve part. The rotating shaft penetrates through the through hole of the shaft sleeve part and is fixed on the cover body. The elastic structure is provided with a fixing part and a bent part, the fixing part is fixed on the cover body, the bent part is contacted with the shaft sleeve part, and in the opening and closing process of the cover body, the bent part moves on the outer surface of the shaft sleeve part, wherein when the bent part is abutted against the baffle plate and is blocked, the cover body can be stopped at an opening angle. Therefore, the damage to users or electronic elements caused by the instant falling of the cover body can be avoided, the cost is reduced, and the assembly complexity is greatly reduced.

Description

Hinge device for business machine

technical field

The invention relates to a hinge device, in particular to a hinge device suitable for business machines.

Background technique

With the great advancement of electronic technology, all business work in today's office is closely related to business machines such as copiers, fax machines, printers, scanners, etc. Therefore, these business machines can be said to be indispensable electronic equipment in the office. However, the current electronic devices are mostly developing toward the technology of multi-function in one machine. Taking the common office machine on the market as an example, since it can provide functions such as fax, copy, scan and print at the same time, it not only has multiple document processing capabilities, but also accounts for The space used is also reduced from four positions to one. In addition, the assembly steps are much simpler than in the past, and only a single network cable, telephone cable and power cable are required to be used with a computer. Therefore, of course, it will become the first consideration factor for consumers to buy products of the same nature.

When performing operations such as copying or scanning, the cover of the multifunctional business machine needs to be opened to place the object to be copied or scanned on the image sensing platform of the multifunctional business machine. For the convenience of lifting the cover, a hinge or a linkage mechanism (Linkage Mechanism) will be provided on one side of the cover to assist the opening and closing of the cover. Since the cover of the multifunctional business machine generally includes an automatic paper feeding device and an infrared image input device, the cover has a considerable weight. Therefore, the traditional hinge or linkage mechanism is often unable to support the cover smoothly. Due to the weight, the cover is often pressed down without paying attention, which not only produces a strong impact force on the internal electronic components, but also may endanger the safety of users or maintenance personnel.

In recent years, with the development of multifunctional business machines, the hinge mechanism has also been continuously improved to increase the support force of the hinge mechanism to the cover body and provide positioning or slow down functions. However, the current existing hinge structure contains many components, such as the upper and lower body of the hinge with the action cam curve, compression spring, spring sliding seat and fixed pin, etc., because the overall structure of this structure has many components and requires tools for assembly. The assembly process is complicated and laborious, making it difficult to effectively reduce the production cost and improve product competitiveness.

Therefore, in order to ensure the stability of the cover of the business machine during the opening and closing process and to reduce the production cost, it is necessary to develop a hinge device that solves the above-mentioned shortcomings to meet the actual needs of today.

Contents of the invention

The main purpose of the present invention is to provide a hinge device suitable for a business machine, which is used to support the cover body during the opening and closing process of the business machine cover body, and increase the stability and safety of the cover body during the opening and closing process.

Another object of the present invention is to provide a hinge device suitable for a business machine, which can stop and open the cover at a specific angle to provide a user with an operating space.

Another object of the present invention is to provide a hinge device suitable for business machines, which uses a small number of mechanism parts, which can not only reduce the demand for molds and reduce costs, but also can be easily assembled without using tools during assembly, resulting in greater Reduce assembly complexity.

In order to achieve the above-mentioned purpose, a wider implementation form of the present invention is to provide a hinge device, which is suitable for a business machine, the business machine has a business machine body and a cover, and the hinge device includes a base, a rotating shaft and an elastic structure. The base has a connection part and a shaft sleeve part, the connection part is connected and fixed on the business machine body, the shaft sleeve part has a through hole and a baffle plate, and the baffle plate is arranged on the outside of the shaft sleeve part On the surface. The rotating shaft passes through the through hole of the sleeve part and is fixed on the cover. The elastic structure has a fixing part and a bending part, the fixing part is fixed on the cover body, the bending part is in contact with the sleeve part, and during the opening and closing process of the cover body, the bending part It moves on the outer surface of the shaft sleeve part, wherein when the bent part abuts against the baffle plate and is blocked, the cover body can stop at an opening angle.

Another broad form of implementation of the present invention is to provide a business machine, comprising a business machine body, a cover and a hinge device, the cover body is used to cover the business machine body, and the hinge device is arranged on the Between the main body of the business machine and the cover, the hinge device includes a base, a rotating shaft and an elastic structure. The base has a connection part and a shaft sleeve part, the connection part is connected and fixed on the business machine body, the shaft sleeve part has a through hole and a baffle plate, and the baffle plate is arranged on the outside of the shaft sleeve part On the surface. The rotating shaft passes through the through hole of the sleeve part and is fixed on the cover. The elastic structure has a fixing part and a bending part, the fixing part is fixed on the cover body, the bending part is in contact with the sleeve part, and during the opening and closing process of the cover body, the bending part It moves on the outer surface of the shaft sleeve part, wherein when the bent part abuts against the baffle plate and is blocked, the cover body can stop at an opening angle.

According to the present invention, through the blocking effect of the baffle provided on the shaft sleeve on the elastic structure, the cover can be stopped and opened at a specific angle to provide the user with an operating space, and the stop angle can be designed according to the needs of the user. In addition, during the process of closing the cover, the provision of the stop point can avoid damage to the user or the electronic components due to the instantaneous drop of the cover. In addition, the number of mechanical parts used in the hinge device of the present invention is small, which not only reduces the need for molds and reduces costs, but also can be easily assembled without using tools, greatly reducing the complexity of assembly.

Description of drawings

Figure 1: It is a schematic diagram of the appearance of the transaction machine of the present invention.

Fig. 2 to Fig. 3: It is the schematic diagram of the combination of the hinge device and the cover body.

Fig. 4 to Fig. 5: It is the exploded view of the combined part of the hinge device and the cover body.

Fig. 6 to Fig. 8: These are schematic views of the hinge device during the opening and closing process of the cover body.

Wherein, the reference signs are explained as follows:

10: Business machine 11: Business machine body

12: Cover body 120: Accommodating space

121: bottom surface 122: first side wall

123: Second side wall 124: Third side wall

125: The first opening 126: The second opening

127: jack 128: bump

21: Base 211: Connection

212: Shaft sleeve part 213: Through hole

214: Baffle 215: Supporting part

216: ribs 217: oil storage groove

22: Shaft 221: Side plate

222: Hook 23: Elastic structure

231: Fixed part 232: Bending part

233: The first hole 234: Screw

235: Second Hole

Detailed ways

Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different forms without departing from the scope of the present invention, and that the description and drawings are illustrative in nature rather than limiting the present invention.

The invention provides a hinge device suitable for a business machine. Please refer to Fig. 1, which is a schematic diagram of the appearance of the business machine of the present invention, the business machine 10 mainly includes a business machine body 11 and a cover body 12, and the hinge device 20 is arranged on the business machine body 11 and the cover body 12 space for supporting the cover 12 during the opening and closing process of the cover 12, and increasing the stability and safety of the cover 12 during the opening and closing process. The business machine 10 can be, but not limited to, a copier, a scanner, or a multifunctional business machine combining at least two functions such as copying, scanning, faxing, printing, and image output, or other electronic devices with a clamshell device. In addition, the cover 12 can be equipped with an automatic paper feeding mechanism or an infrared image input device according to various functional requirements.

Please refer to FIG. 2 to FIG. 5 , wherein FIG. 2 and FIG. 3 are combined diagrams of the hinge device and the cover body, and FIG. 4 and FIG. 5 are exploded views of the combined parts of the hinge device and the cover body. As shown in the figure, the hinge device 20 includes a base 21 , a rotating shaft 22 and an elastic structure 23 . The base 21 has a connecting portion 211 and a bushing portion 212, the connecting portion 211 is connected and fixed on the main body 11 of the business machine, and the bushing portion 212 is arranged in an accommodating space 120 of the cover 12 , and the sleeve part 212 is substantially a hollow cylinder, has a through hole 213 and a baffle 214, wherein the axis direction of the through hole 213 is substantially the same as the rotation axis direction of the cover body 12 during the opening and closing process. Same, and the baffle 214 is disposed on the outer surface of the sleeve portion 212 . In addition, the base 21 may further include a supporting portion 215, which is disposed between the connecting portion 211 and the sleeve portion 212, and has a plurality of ribs 216 for supporting the sleeve portion 212 and strengthening the base 21. structural strength. In one embodiment, the connecting portion 211 , the sleeve portion 212 and the supporting portion 215 of the base 21 are integrally formed.

The rotating shaft 22 passes through the through hole 213 of the sleeve portion 212 . In this embodiment, the rotating shaft 22 is a cuboid with a length L, a width W and a height H, wherein the length L is slightly larger than the length of the sleeve portion 212, and the width W is substantially equal to or slightly smaller than the sleeve portion 212. The diameter of the through hole 213, when the rotating shaft 22 passes through the through hole 213 of the sleeve part 212, the rotating shaft 22 is in contact with the inner wall of the through hole 213 and interferes with the inner wall of the through hole 213 state, and the rotating shaft 22 can still rotate in the through hole 213 .

As shown in FIG. 5 , the accommodating space 120 on the cover body 12 for accommodating the sleeve portion 212 is composed of a bottom surface 121 of the cover body, a first side wall 122 , a second side wall 123 and a third side wall 124 . The first side wall 122 and the second side wall 123 are oppositely arranged, and have a first opening 125 and a second opening 126 respectively, wherein the shapes of the first opening 125 and the second opening 126 correspond to the The rotating shaft 22 is, for example, rectangular, and the distance between the first side wall 122 and the second side wall is substantially equal to the length of the sleeve portion 212 . When assembling the hinge device 20 on the cover body 12, the rotating shaft 22 passes through the first opening 125, the through hole 213 of the sleeve part 212, and the second opening 126 in sequence, and is connected with the The first opening 125 and the second opening 126 are closely matched.

In addition to the fixing method of the rotating shaft 22 tightly fitting the first opening 125 and the second opening 126, both ends of the rotating shaft 22 may also include a first fastening element and a second fastening element, such as a side Plate 221 and hook 222, the area of the side plate 221 is greater than the cross-sectional area of the shaft 22, and the hook 222 is made of elastic material (such as but not limited to plastic), when the hinge device 20 is assembled on the cover body 12 When going up, the rotating shaft 22 passes through the first opening 125, the through hole 213 of the sleeve portion 212, and the second opening 126 in sequence with one end having the hook 222 structure, because the hook 222 It is made of elastic material, so it can elastically deform through the first opening 125 and the second opening 126, and buckle on the first side wall 122 and the second side wall 122 through the side plate 221 and the hook 222 respectively. Two side walls 123 are used to further fix the rotating shaft 22 on the cover 12 and serve as the rotating shaft when the cover 12 is opened and closed.

Of course, the shapes of the rotating shaft 22 and the first and second openings 125, 126 are not limited to cuboid and rectangle, and can also be other geometric shapes, and there are many different ways to fix the rotating shaft 22 and the cover 12. The embodiment is not limited to the aforementioned side panels, hooks and openings.

The elastic structure 23 is an elastic piece, which can be bent from a metal sheet, and has a fixing part 231 and a bending part 232. The fixing part 231 is fixed on the cover body 12, and its fixing method is not limited, for example Sticking with adhesives, locking with screws, or locking with matching structures, etc. For example, the fixing portion 231 may have a first hole 233 for the screw 234 to lock the fixing portion 231 to the corresponding insertion hole 127 on the third side wall 124 of the cover body 12, or optionally There is a second hole 234 for fitting on the corresponding protrusion 128 on the third side wall 124 of the cover body 12 . The bent portion 232 is substantially U-shaped, and one end of the U-shaped bent portion 232 is connected to the fixing portion 231 , and the other end is abutted against the bottom surface of the cover in the accommodating space 120 of the cover 12 . 121, and the U-shaped bottom edge of the bent portion 232 is in contact with the outer surface of the sleeve portion 212, and during the opening and closing process of the cover body 12, the bent portion 232 is on the outer surface of the sleeve portion 212 Moving up, wherein, the baffle 214 on the sleeve portion 212 can be used as a stop point in the opening and closing process of the cover 12, and its detailed action will be described as follows.

Please refer to FIG. 6 to FIG. 8 , which are schematic views of the hinge device during opening and closing of the cover. As shown in FIG. 6, when the cover 12 is closed on the business machine body 11, the bent portion 232 of the elastic structure 23 abuts against the bottom of the baffle plate 214 on the outer surface of the sleeve portion 212, and passes through a suitable inner In the design of shrinking the arc and offsetting the amount of interference, the relationship between the shaft sleeve portion 212 and the axis of the shaft 22 is a clearance fit. And when the user wants to open the cover body 12 to operate the business machine, the user must give the cover body 12 an upward force to deform the elastic structure 23 so that the bending portion 232 of the elastic structure 23 straddles the shaft sleeve The upper part 212 is blocked by the baffle 214 , and then abuts against the top of the baffle 214 , as shown in FIG. 7 . At this time, the hole-axis relationship between the sleeve portion 212 and the rotating shaft 22 is changed to have an appropriate amount of interference, and is in an interference fit state, and because the bending portion 232 of the elastic structure 23 is against the top of the baffle plate 214, the cover 12 is provided. The strength of the support makes the cover body 12 stop at an opening angle, and at the same time provides an operating space for the user to operate the business machine in this space, such as placing the object to be copied or scanned on the side of the business machine body image sensing platform. Of course, when the user needs a larger operating space, the cover body 12 can be opened upwards, as shown in FIG. 8 .

From the above description, it can be known that the stop opening angle of the cover body 12 depends on the position of the baffle plate 214 on the sleeve portion 212 (as shown in FIG. 7 ), so it can be adjusted according to the needs of users without limitation. For example, the angle at which the cover body 12 pauses to open can be designed but not limited to 30-60 degrees, and can meet the requirement of opening and pausing at a small angle. In addition, the number of baffles 214 provided on the sleeve portion 212 is not limited to one, for example, more than two baffles 214 may be provided to increase the stop point of the cover 12 during the opening and closing process.

According to a preferred embodiment, the base 21 and the rotating shaft 22 of the present invention are both made of plastic material, so as to utilize the wear resistance and strong elasticity of the plastic material to achieve the interference between the sleeve part 212 and the rotating shaft 22 pause effect. In addition, in order to increase the service life of the hinge device 20 and increase the smoothness of the opening and closing process of the cover body 22, lubricating oil can be applied on the wall surface of the through hole 213 of the shaft sleeve part 212, and an oil storage groove 217 (as shown in Figure 6) can be provided. shown) to collect lubricating oil.

On the other hand, in the process of closing the cover 12, when the cover 12 moves from the position shown in FIG. 8 to the position shown in FIG. The baffle 214 blocks to generate a stop point, which can avoid damage to users or electronic components due to the instantaneous drop of the cover body 12 . And when the user wants to completely close the cover 12 on the main body 11 of the business machine, he can continue to apply a pressing force to the cover 12 to deform the elastic structure 23 so that the bending portion 232 of the elastic structure 23 can straddle the shaft. Blocking by the baffle 214 on the sleeve portion 212 can close the cover 12 on the main body 11 of the business machine, as shown in FIG. 6 .

And as shown in Figure 1, business machine 10 of the present invention comprises two groups of hinge devices 20, and is arranged between business machine body 11 and cover body 12 in a symmetrical manner, yet, the hinge device that business machine 10 of the present invention adopts 20 is not limited to two groups, for example, the business machine 10 of the present invention may only include one group of hinge devices 20, and is arranged on the central part of one side of the cover body 12, or, when the weight of the cover body 12 is relatively When it is heavy, more than three sets of hinge devices 20 can be set to increase the supporting force to the cover body 12 .

To sum up, the present invention provides a hinge device suitable for business machines. Through the blocking effect of the baffle on the shaft sleeve on the elastic structure, the cover can be stopped and opened at a specific angle, providing the user with an operation space, and the stop angle can be designed according to the needs of users. In addition, during the process of closing the cover, the provision of the stop point can avoid damage to the user or the electronic components due to the instantaneous drop of the cover. In addition, the number of mechanical parts used in the hinge device of the present invention is small, which not only reduces the need for molds and reduces costs, but also can be easily assembled without using tools, greatly reducing the complexity of assembly.

The present invention can be subjected to various equivalent changes and modifications by those skilled in the art without departing from the scope defined by the appended claims.

Claims (11)

1. A hinge device, suitable for a business machine, the business machine has a business machine body and a cover, the hinge device includes: A base has a connection portion and a shaft sleeve portion, the connection portion is connected and fixed on the business machine body, the shaft sleeve portion has a through hole and a baffle plate, and the baffle plate is arranged on the shaft sleeve portion on the outer surface; a rotating shaft is passed through the through hole of the sleeve part and fixed on the cover; and An elastic structure has a fixing part and a bending part, the fixing part is fixed on the cover body, the bending part is in contact with the shaft sleeve part, and the bending part is in the process of opening and closing the cover body The part moves on the outer surface of the shaft sleeve part, wherein when the bent part abuts against the baffle and is blocked, the cover body can stop at an opening angle. 2. The hinge device as claimed in claim 1, wherein the sleeve portion is a hollow cylinder and has a through hole. 3. The hinge device as claimed in claim 2, wherein the sleeve part further comprises an oil storage groove, and the oil storage groove is disposed on the inner wall of the through hole for collecting lubricating oil. 4. The hinge device as claimed in claim 2, wherein the rotating shaft passes through the through hole of the sleeve portion. 5. The hinge device as claimed in claim 1, wherein the cover body has an opening corresponding to the rotating shaft, through which the rotating shaft passes and is fixed thereon. 6. The hinge device as claimed in claim 1, wherein two ends of the rotating shaft respectively have a first fastening element and a second fastening element for fastening the rotating shaft on the cover. 7. The hinge device as claimed in claim 1, wherein the elastic structure is an elastic piece and is formed by bending a metal sheet. 8. The hinge device as claimed in claim 1, wherein the bending portion of the elastic structure is U-shaped, one end of which is connected to the fixing portion, and the other end abuts against the cover, and the U of the bending portion The shaped bottom edge is in contact with the outer surface of the sleeve portion. 9. The hinge device as claimed in claim 1, wherein the base further comprises a supporting portion, the supporting portion is disposed between the connecting portion and the sleeve portion and has a plurality of ribs for supporting the sleeve portion And strengthen the structural strength of the base. 10. The hinge device as claimed in claim 1, wherein the sleeve portion and the rotating shaft are both made of plastic material. 11. A transaction machine, comprising: A business machine body; a cover for covering the main body of the business machine; and A hinge device is arranged between the main body of the business machine and the cover, wherein the hinge device includes: A base has a connection portion and a shaft sleeve portion, the connection portion is connected and fixed on the business machine body, the shaft sleeve portion has a through hole and a baffle plate, and the baffle plate is arranged on the shaft sleeve portion on the outer surface; a rotating shaft is passed through the through hole of the sleeve part and fixed on the cover; and An elastic structure has a fixing part and a bending part, the fixing part is fixed on the cover body, the bending part is in contact with the shaft sleeve part, and the bending part is in the process of opening and closing the cover body The part moves on the outer surface of the shaft sleeve part, wherein when the bent part abuts against the baffle and is blocked, the cover body can stop at an opening angle.

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