TW201708927A - Opening-closing support device and apparatus with the same - Google Patents

Abstract

The invention provides an opening-closing support device and an apparatus using the same. The opening-closing support device comprises a mount element, a support element, a first spring case, a second spring case, and an elastic element. The mount element is disposed on rear face of upper portion of main body. The support element is disposed on lid and rotatably supported on a hinge shaft. The hinge shaft is disposed on main body side of the mount element. The first spring case is accommodated in the mount element. The second spring case is accommodated in the first spring case, in which the upper portion of the second spring case is oscillatably connected to rear side of the support element by a first connection pin, in which the hinge shaft is disposed in middle of the support element. The elastic element is elastically disposed between the first spring case and the second spring case. The upper portion of the first spring case also comprises a second connection pin, which is engaged with guide long holes disposed on both sides of the second spring case.

Description

Opening support device and device having the same

The present invention relates to an opening support device suitable for use in opening and supporting a cover body, and an apparatus using the same, which can be, for example, a documentary press plate of a photocopier.

In the prior art, a transaction machine such as a photocopier, a scanner or a printing machine usually includes a contact glass, an original plywood (hereinafter referred to as a cover), and an opening support device (or an original plywood opening device), and a contact glass setting. On the device body of the transaction machine, the cover body is used for pressing the original placed on the contact glass to the contact glass for photocopying or printing, and the opening and closing support device is disposed between the device body and the cover body to make the cover body carry out Open up. Such techniques are well known as described in Japanese Patent Laid-Open Publication No. 2015-001619. The above-described opening support device is a hinge mechanism that pivotally supports the cover body around the hinge rod. When the cover body is in the closed state, the hinge mechanism presses the cover body on the contact glass provided on the upper surface of the device body, and when the cover body is opened, the hinge mechanism can prevent the operator from feeling the cover body. The cover is opened with the original weight, and the cover can be kept stopped within a specific opening angle range to prevent the cover from falling naturally.

The above-mentioned opening support device comprises an assembly member, a support member and an elastic member. The assembly member is assembled to the device body, the support member is for supporting the cover body and is rotatably disposed on the assembly member through the hinge rod, and the elastic member is accommodated in the assembly member. The inner portion is disposed between the support member and the assembly member to force the support member to rotate in the opening direction. Among them, the assembly elements can be classified into two types, one of which is assembled flat on the upper surface of the rear end portion of the apparatus body, and the other is assembled upright on the rear surface of the upper end of the apparatus body, and the present invention belongs to the latter.

When the assembly member adopts the latter, the structure of the opening support device is relatively simple, but as shown in FIG. 6(A), in order to force the support member to rotate upward relative to the assembly member, the point of application of the elastic member contained in the assembly member is Set on the front side of the hinge rod. At this time, the hinge rod is located at the rear with respect to the apparatus body, and is rotatably assembled to the cover of the hinge rod through the support member. A larger closing torque will be produced. Therefore, such an opening support device generally requires the use of a spring-loaded elastic member to provide sufficient rotational actuation force, and it is difficult to reduce the volume of the opening support device.

In view of the above problems, an object of the present invention is to provide an opening support device for a cover body, wherein a biasing point provided by the elastic member for rotating the support member upward is disposed on a rear side of the hinge rod, so that the hinge rod is The position is close to the side where the device body is located, thereby greatly reducing the gap generated between the device body and the cover. In addition, the opening support device of the present invention can provide sufficient rotational actuation force by using only a spring-loaded elastic member as compared with the conventional opening support device, and thus can reduce the volume of the opening and closing support device.

To achieve the above object, an opening support device of the present invention is disposed between a device body of a device and a cover, and the cover is opened relative to the device body. Wherein, the opening support device comprises an assembly element, a support element, a first spring case, a second spring case and an elastic element. The assembly component is assembled upright on the rear surface of the upper end of the apparatus body, the support component is assembled to the cover body and pivotally supported on a hinge rod, and the hinge rod is disposed on a side of the assembly component adjacent to the apparatus body, and the first spring shell accommodates The second spring case is received in the first spring case, and the upper end of the second spring case is swingably coupled to the rear side of the support member through the first connecting pin, and the elastic element is elastically disposed. Between the first spring case and the second spring case. A second connecting pin is assembled on the upper end of the first spring case, and the second connecting pin is engaged with the guiding elongated hole provided on both sides of the second spring case.

In one embodiment, the support member has an assembled plate portion that is plate-shaped and inserted into the assembly hole provided at the rear end portion of the cover.

Further, in order to achieve the above object, the apparatus of the present invention uses the opening support device described in the above embodiment.

In view of the above, the opening support device of the present invention is characterized in that the point of application of the actuation force of the elastic member to the support member is located behind the hinge rod, so that the hinge rod can be closer to the side where the device body is located And can reduce the rotational torque generated around the hinge rod. Thereby, compared with the prior art, the present invention can provide sufficient rotational actuation force by using only a small elastic component with a small spring load, which can not only reduce the volume of the opening and closing support device and reduce the weight, but also achieve cost saving. Effect.

Secondly, in an embodiment of the invention, the construction of the support member becomes simpler, whereby the volume of the opening support device can be further reduced and the weight can be reduced.

Further, the apparatus of the present invention is characterized in that the above-described opening support device is used, whereby the manufacturing cost can be further reduced.

1‧‧ ‧photocopying machine

10‧‧‧Second spring case

10a, 6a‧‧‧ Backplane

10b, 6b, 7b, 9b‧‧‧ side panel

10c, 6d‧‧‧ bottom plate

10d, 9d‧‧‧ round convex

10e‧‧‧Baffle Department

10f‧‧‧ Guided long hole

10g‧‧‧ sixth connection hole

11, 111‧‧‧ elastic components

11a, 11b‧‧‧Compressed coil spring

12‧‧‧ First link pin

12a, 13a, 14a, 16a, 18a, 19a, 8a‧‧‧Flange

122‧‧‧ Pressure components

13‧‧‧Second link pin

14, 16, 18‧ ‧ bearing components

14b, 16b, 18b‧‧‧ convex

15, 17‧‧‧ spacer elements

19‧‧‧ Third Link Pin

2, 21‧‧‧ device body

2a, 21a‧‧‧ upper rear surface

3‧‧‧cover/original plywood

3a, 6h, 7d‧‧‧ assembly holes

4‧‧‧Contact glass

5, 51‧‧‧Open support device

6‧‧‧Assembly components

6c, 7a‧‧‧ Assembly board

6e‧‧‧ accommodating department

6f‧‧‧Linking Department

6g‧‧‧first link hole

6i‧‧‧4th connection hole

6j‧‧‧Zigzag

7, 71‧‧‧ support components

7c‧‧‧ actuation board

7e‧‧‧ reinforcing ribs

7f‧‧‧ bearing hole

7g‧‧‧Second connection hole

7h, 7j, 9g‧‧‧ card ditch

8, 81‧‧‧ hinge rod

9‧‧‧First spring shell

9a‧‧‧ Front Board

9c‧‧‧Upper Board

9e‧‧‧3rd link hole

9f‧‧‧5th link

La, Lb, Ma‧‧‧ distance

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a photocopier using the opening support device of the present invention.

Fig. 2 is a view showing a state in which the apparatus body and the lid body are joined by using the opening and closing support device of the present invention, wherein (A) shows the state of the lid body and (B) shows the state in which the lid body is opened.

Figure 3 is an enlarged perspective view of the opening support device of the present invention.

Figure 4 is an exploded perspective view of the opening support device of the present invention.

Fig. 5A is a front elevational view showing the operation state of the opening support device of the present invention, wherein (A) shows the state of the lid body, (B) shows the state in which the lid body is opened to the intermediate opening angle, and (C) shows the lid body. Fully open state.

Figure 5B is a schematic cross-sectional view showing the operation state of the opening support device of the present invention, wherein (A) shows the state of the cover body, (B) shows the state in which the cover is opened to the intermediate opening angle, and (C) shows the cover completely. Open state.

Fig. 6 is a schematic explanatory view showing the construction of a conventional opening support device and an opening support device of the present invention, wherein (A) shows a conventional configuration, and (B) shows the configuration of the present invention.

Hereinafter, an embodiment of the present invention will be described by taking a case where the opening support device is applied to a document pressing plate of a photocopier. It should be specially noted that the opening support device of the present invention can be directly applied to a transaction machine other than the photocopying machine by simply changing the design considering the weight, function and structure of the original pressing plate (cover). On, for example, a list machine, a scanner, or a printer. Further, the opening support device of the present invention can be directly applied to a cover other than the original pressure plate (for example, an outer cover of the ink containing portion of the ink cartridge, a toilet seat or a toilet cover). Therefore, the present invention is hereby referred to simply as a cover body, and a machine using the cover is also referred to as a device.

1 is an overall perspective view of a photocopier 1 which is an example of a device and is also referred to as an image forming apparatus. The present invention is based on the assumption that the front-rear direction of the copying machine 1 is the Y-axis direction, the left-right direction is the X-axis direction, and the vertical direction is the Z-axis direction. In the present invention, the photocopier 1 includes a device body 2 and a cover (original plywood) 3, and the cover (original plywood) 3 of the present invention is used for pressing an original (not shown) to the device body 2. On the contact glass 4, the opening support devices 5, 5 of the lid body (original pressing plate) 3 have a pair of left and right sides. In particular, as shown in FIG. 1, the opening support devices 5, 5 are connected to the rear upper end of the apparatus body 2 so as to be openably connected to the rear of the cover 3. Further, the cover 3 can be classified into two types, one of which includes a conventional automatic document feeder (not shown), and the other does not include an automatic document feeder. The opening support device 5, 5 of the present invention can be applied to any of the above-mentioned covers, but is more suitable for the cover 3 which does not include the automatic transfer device of the original, because the cover is light in weight and transparent to itself. Perform a concave fold or the like to process thicker originals. Since the structures of the opening and closing support devices 5 and 5 are the same, only one of the structures will be described below, but the other structure may be arbitrarily used depending on the needs.

2(A) and 2(B) are perspective views showing an assembled state of the photocopier 1 by the opening support device 5, and Fig. 3 is an enlarged perspective view of the opening support device 5. The opening support device 5 comprises an assembly element 6 and a support element 7, which is supported by the assembly element 6 via a hinge rod 8, and the support element 7 is rotatable in any direction in the Z-axis. As shown in FIG. 2, the assembly member 6 is assembled to the upper end rear surface 2a of the apparatus body 2, and the hinge rod 8 is assembled to the upper end portion of the assembly member 6. The support member 7 is inserted into the assembly hole 3a formed on the rear end surface of the cover body 3 to fix the support member 7 to the cover body 3 through the assembly hole 3a. In the above configuration, when the support member 7 is rotated about the hinge lever 8, the opening support device 5 will be in a closed state in which the cover 3 covers the contact glass 4 and an open state in which the cover glass 3 is exposed to expose the contact glass 4. The opening is performed between, wherein the closed state is shown in Fig. 2(A), and the open state is shown in Fig. 2(B).

4 is an exploded perspective view of the opening support device 5. In more detail, the opening support device 5 comprises an assembly element 6, a support element 7, a hinge rod 8, a first spring case 9, a second spring case 10 and an elastic element 11. Wherein, the rear end portion of the support member 7 is rotatably coupled to the upper end portion of the assembly member 6 via the hinge rod 8, and the first spring case 9 is slidably and slidably received in In the assembly member 6, the second spring case 10 is housed in the first spring case 9, the elastic member 11 is elastically disposed within the first spring case 9 and the second spring case 10, and the elastic member 11 is a pair of compression coil springs. 11a and 11b constitute.

The assembly member 6 is formed by pressing a metal plate made of a material such as stainless steel. The assembly element 6 includes a back plate portion 6a, side plate portions 6b and 6b on the left and right sides, assembly plate portions 6c and 6c, and a bottom plate portion 6d. The back plate portion 6a is located in the Y-axis direction of the apparatus body 2, and the side plate portion 6b, 6b is formed by bending both ends of the back plate portion 6a toward the front Y-axis direction to a substantially vertical state, and the assembled plate portions 6c and 6c are bent from the end portions of the side plate portions 6b and 6b to the outer X-axis direction. Further, the bottom plate portion 6d is connected to the lower ends of the back plate portions 6a and the side plate portions 6b, 6b, and the front side of the bottom plate portion 6d has a bent portion 6j. The back plate portion 6a, the side plate portions 6b, 6b and the bottom plate portion 6d on the left and right sides define a housing portion 6e inside, and the first spring case 9 and the second spring case 10 are housed in the housing portion 6e.

Further, the upper end portions of the side plate portions 6b and 6b of the assembly element 6 are respectively provided with connection portions 6f and 6f that protrude in the Y-axis direction toward the front side, and the connection portions 6f and 6f are provided with the first connection for the hinge rod 8 to be used. The holes 6g and 6g and the assembly plate portions 6c and 6c are fixed to the upper end rear surface 2a of the apparatus body 2 through an assembly screw (not shown), whereby the assembly position of the hinge rod 8 can be avoided as shown in Fig. 6(B). A gap is formed between the upper end rear surface 2a of the apparatus body 2. Further, the above design can also reduce the rotational moment generated by the rotation of the hinge lever 8, so that the elastic member 11 having a small spring load can be used to achieve the purpose of miniaturization and weight reduction of the opening and contracting support device 5. Further, the reference numeral 6h shown on each of the assembled plate portions 6c, 6c in the drawing is an assembly hole for assembling the assembly member 6 to the apparatus body 2, the symbol 6i shown below each side plate portion 6b, 6b, 6i is a fourth connecting hole, and the third connecting pin 19 having the flange portion 19a is inserted through the fourth connecting holes 6i and 6i. Further, in the present embodiment, the gap between the upper end portion rear surface 2a of the apparatus main body 2 and the hinge rod 8 in the Z-axis direction is zero, but in other embodiments, the gap may be arbitrarily changed to a negative value.

Next, the support member 7 is also produced by press working a metal plate made of stainless steel or the like. The support member 7 includes a plate-shaped assembled plate portion 7a and a pair of side plate portions 7b and 7b (only one of which is shown), and the side plate portions 7b and 7b are bent from the both ends of the assembled plate portion 7a toward the lower side in the Z-axis direction. Further, the side plate portions 7b and 7b are provided with actuation plate portions 7c and 7c that protrude in the Y-axis direction on the rear side. Three assembly holes 7d, 7d, and 7d are formed in the assembly plate portion 7a. As shown in Fig. 2(A), screws not shown are inserted through the assembly holes 7d, 7d, and 7d, and inserted into the back of the cover 3. The assembly hole 3a is formed on the side end face, and the support member 7 is locked to the cover body 3. Further, a pair of reinforcing ribs 7e, 7e are formed behind the assembled plate portion 7a, and the reinforcing ribs 7e, 7e are used for reinforcing strength and are formed by press working. Moreover, the side plate portions 7b and 7b which are formed by bending both ends of the assembled plate portion 7a can also achieve the effect of reinforcing the strength of the assembled plate portion 7a.

Bearing holes 7f, 7f are provided in the side plate portions 7b, 7b, and second coupling holes 7g, 7g are provided in the actuation plate portions 7c, 7c, wherein the bearing holes 7f and 7f are respectively disposed at positions facing each other. The hinge rod 8 assembled to the assembly element 6 is coupled to the bearing holes 7f and 7f of the side plate portions 7b and 7b, and the second spring case 10 is coupled to the second connection holes 7g and 7g via the first coupling pin 12.

A pair of non-rotatable bearing members 14, 14 are assembled on the bearing holes 7f, 7f of the support member 7 whose side plate portions 7b, 7b are provided, and one end of each of the bearing members 14, 14 has a flange portion 14a, 14a, respectively, and has The convex portions 14b and 14b provided from the respective flange portions 14a and 14a to the outer periphery in the axial direction are used for the rotation of the convex portions 14b and 14b. The hinge rod 8 is inserted through and axially received by the bearing members 14, 14, and the hinge rod 8 is also inserted through the spacing members 15, 15, each of the spacer members 15, 15 being cylindrical and disposed on the side plate portions 6b and 6b of the assembly member 6. between. One end of the hinge rod 8 has a flange portion 8a, and the other end is tightly closed to prevent falling off. Further, in other embodiments, an E-ring may be used instead of the adhesion. In addition to this, each of the bearing holes 7f, 7f (only one of which is shown) is provided with locking grooves 7h, 7h (only one of which is shown), and the locking grooves 7h, 7h are provided to the bearing member 14 The convex portions 14b and 14b of the 14 are engaged with each other. Further, the second connecting holes 7g and 7g are also provided with locking grooves 7j and 7j, and the locking grooves 7j and 7j and the convex portions 16b and 16b (only one of which is shown in the figure) of the bearing elements 16 and 16 to be described later are mutually Engagement, wherein the bearing elements 16, 16 have flange portions 16a, 16a.

Further, the first spring case 9 is also formed by press working a metal plate made of stainless steel or the like, and the first spring case 9 is housed in the housing portion 6e of the assembly member 6. The front surface side of the first spring case 9 has a front plate portion 9a, and the first spring case 9 further includes a pair of side plate portions 9b, 9b and an upper plate portion 9c which are left and right of the front plate portion 9a The both ends are formed in a Y-axis direction bent to a vertical state in the rear side, and the upper plate portion 9c is formed by bending from the upper end portion of the front plate portion 9a toward the rear Y-axis direction. The upper plate portion 9c has a pair of circular convex portions 9d and 9d which are provided downward, and the respective convex portions 9d and 9d are fitted to the upper end portions of the compression coil springs 11a and 11b to stabilize the installation state of the compression coil springs 11a and 11b. A pair of third connecting holes 9e and 9e are provided at positions above the upper plate portion 9c of each of the side plate portions 9b and 9b, and a fifth connecting hole 9f is provided at a lower end of each of the side plate portions 9b and 9b. 9f (only one of them is shown in the figure). At the same time, the fifth connecting holes 9f and 9f are also provided with locking grooves 9g and 9g (only one of which is shown), and the locking grooves 9g and 9g are engaged with the convex portions 18b and 18b of the bearing elements 18 and 18. The third connecting holes 9e and 9e are provided at positions which are in a state of no difference from the upper surface of the upper plate portion 9c, and the second connecting pin 13 having the flange portion 13a passes through the third connecting holes 9e, 9e, and the second The outer edge of the joint pin 13 contacts the upper plate portion 9c, thereby preventing the upper plate portion 9c from being bent upward by the elastic force of the elastic member 11. In the present embodiment, one end of the second joint pin 13 has a flange portion 13a, and the other end is brought into close contact to prevent falling off. However, in other embodiments, an E-ring may be used instead of the close.

Among them, the bearing elements 18 and 18 having the flange portions 18a and 18a and the convex portions 18b and 18b are assembled to the fifth coupling holes 9f and 9f, and the third coupling pin 19 is coupled to the plate members 6b and 6b of the assembly member 6 at both sides. The fourth coupling holes 6i, 6i are provided, and the third coupling pin 19 passes through the bearing members 18, 18, so that the first spring case 9 is swingably coupled within the housing portion 6e of the assembly member 6. In the present embodiment, one end of the third joint pin 19 has a flange portion 19a, and the other end is brought into close contact to prevent falling off. However, in other embodiments, an E-ring may be used instead of the close.

The second spring case 10 is also formed by press working a metal plate made of stainless steel or the like, and the second spring case 10 is housed in the first spring case 9 and is housed in the assembly member 6 together with the first spring case 9. It is provided inside the housing portion 6e. The second spring case 10 includes a back plate portion 10a, a pair of side plate portions 10b, 10b, and a bottom plate portion 10c. The back plate portion 10a is located on the back surface of the second spring case 10 and overlaps the back plate portion 6a of the assembly member 6, and the side plate portion 10b 10b is configured such that the left and right ends of the back plate portion 10a are bent to the vertical direction in the front Y-axis direction, and the bottom plate portion 10c is provided at the lower ends of the back plate portion 10a and the side plate portions 10b and 10b. The bottom plate portion 10c has a pair of upwardly projecting circular convex portions 10d, 10d, and the respective convex portions 10d, 10d are fitted to the lower end portions of the compression coil springs 11a, 11b to stabilize the installation positions of the compression coil springs 11a, 11b.

Further, the front side of the bottom plate portion 10c is further provided with a lower height baffle portion 10e, and the lower ends of the side plate portions 10b, 10b are bent inwardly to support the bottom plate portion 10c from the lower side, thereby preventing the bottom plate portion 10c from being elastic The elastic force of the element 11 is bent downward. Further, the side plate portions 10b and 10b are further provided with a pair of guide long holes 10f and 10f located above, and the upper end portions of the side plate portions 10b and 10b are provided with a pair of sixth connection holes 10g and 10g. The first joint pin 12 having the flange portion 12a is connected to the sixth joint hole 10g, 10g through the bearing members 16, 16 and the spacer members 17, 17 assembled on the second joint holes 7g, 7g of the support member 7. The second joint pin 13 passes through the first spring case 9 The third connecting holes 9e, 9e pass through the guiding long holes 10f, 10f to be engaged with the first spring case 9. The second spring case 10 is rotatably and slidably coupled to the rear end of the support member 7 in addition to being housed in the first spring case 9.

Further, the elastic member 11 is constituted by a pair of compression coil springs 11a, 11b which are arranged side by side in the first spring case 9 and the second spring case 10, and in detail, the elastic member 11 is elastically disposed on the first spring case 9. Between the upper plate portion 9c and the bottom plate portion 10c of the second spring case 10, the support member 7 coupled to the upper ends of the side plate portions 10b, 10b of the second spring case 10 is forced to rotate upward. In the present embodiment, the elastic member 11 is constituted by a pair of compression coil springs 11a and 11b, but the elastic member may be constituted by only one spring or by superposing the two compression coil springs in the axial direction. Compared with the configuration of the prior art, the hinge rod 8 of the present invention is closer to the side where the apparatus body is located, so that the rotational torque generated around the hinge rod 8 becomes smaller, and thus a small compression coil spring with a small spring load can be used. . It should be added that in other embodiments, a tension coil spring can also be used as the elastic element 11.

Next, the action of the opening support device 5 of the above-described configuration of the present invention will be described based on the oblique view shown in Fig. 2 and the operation diagrams shown in Figs. 5A and 5B. 5A is a front view operation diagram of the opening support device 5, and FIG. 5B is a side sectional operation view of the state shown in FIG. 5A. The left side view (A) of Fig. 2 (A) and Figs. 5A and 5B shows the state of the opening support device 5 when the lid body 3 is in the closed state. In this state, the cover 3 covers the contact glass 4 and is pressed against the contact glass 4 by its own weight. At the same time, in this state, the first joint pin 12 coupled to the support member 7 is positioned at the top, and the second joint pin 13 is positioned at the lowest position within the guide slits 10f, 10f. In other words, the second spring case 10 coupled to the second joint pin 13 will cooperate with the first spring case 9 such that the elastic member 11 composed of the compression coil springs 11a, 11b is in the upper plate portion 9c and the bottom plate portion 10c. The state in which the compression amplitude is the largest is formed. Here, when the lid body 3 is lifted up, as shown in the center view (B) of FIGS. 5A and 5B, the support member 7 is rotated upward in the clockwise direction. At this time, as the support member 7 is rotated upward, the first joint pin 12 will be rotated downward with the hinge rod 8 as a fulcrum (the negative direction of the Z-axis), and at the same time, the second joint pin 13 will also be guided by the long hole 10f. Move upwards within 10f. Thereby, the rotational actuation force generated by the elastic force of the compression coil springs 11a, 11b will enable the cover body 3 to be opened without being affected by its own weight.

Further, when the cover body 3 is pushed up to reach the maximum open state, as shown in the right side view (C) of FIG. 2(B) and FIGS. 5A and 5B, the support member 7 is approximately sag. In the straight state, the first joint pin 12 is rotationally moved to the lowest position, and the second joint pin 13 is also moved to the uppermost position along the guide long holes 10f, 10f. At this time, the compression coil springs 11a, 11b will be maintained in the compressed state and extended to the maximum amplitude, and the opening angle of the support member 7 will be restricted by the abutment of the second joint pin 13 to the upper ends of the guide long holes 10f, 10f. On the other hand, when the lid body 3 that has been opened is to be attached, the lid body 3 will be smashed by the opposite effect to the above description. At this time, the elastic member 11 composed of the compression coil springs 11a and 11b is compressed to slow down the falling speed of the lid body 3, so that the lid body 3 can be prevented from falling and falling. When the lid body 3 is closed to a certain angle, the weight of the lid body 3 will cause the phosphine to elastically elasticize the elastic member 11, so that the lid body 3 is automatically closed and pressed to the contact glass 4 as described above.

In addition, FIG. 6(A) is a schematic explanatory view of a conventional opening support device 51, and FIG. 6(B) is a schematic explanatory view showing the structure of the opening support device 5 of the present invention. As shown in FIG. 6(A), the conventional opening support device 51 is provided with a biasing point provided by the elastic member 111 between the hinge rod 81 and the device body 21, and causes the elastic force generated by the elastic member 111 to act on the hinge. Between the rod 81 and the device body 21, therefore, a long distance La is required between the hinge rod 81 and the upper end rear surface 21a of the apparatus body 21, and there is a hinge between the hinge rod 81 and the pressure receiving member 122. The rod 81 is located at a further distance Ma. The longer the distance from the apparatus body 21 to the hinge rod 81, the greater the rotational moment generated by the elastic force of the elastic member 111 around the hinge rod 81, and therefore, when the cover body (not shown) assembled to the support member 71 is relatively When the apparatus body 21 performs the opening operation, since the distance La between the hinge rod 81 and the apparatus body 21 is long, the rotational moment generated around the hinge rod 81 also becomes large, so that the elastic member 111 having a large spring load is required. . In contrast, as shown in FIG. 6(B), in the opening support device 5 of the present invention, the distance Lb between the hinge rod 8 and the apparatus body 2 is zero, which is higher than that shown in FIG. 6(A) above. The distance La is shorter, so that when the cover body (not shown) assembled to the support member 7 is opened, the rotational torque generated around the hinge lever 8 can be reduced. Therefore, as long as the elastic member 11 having a small spring load is used, it is possible to meet the requirements of the present invention, and the volume of the opening support device is made smaller.

With the above configuration, the opening support device of the present invention can reduce the gap generated between the cover body and the hinge rod when opening, or make the gap zero or negative, thereby bringing the hinge rod closer to the apparatus body. On one side, and can reduce the rotational moment generated around the hinge rod. Therefore, the opening support device of the present invention can control the rotational torque generated around the hinge rod without using a spring-loaded elastic member, and can cover the cover even if the volume of the opening and closing support device is reduced. The body provides sufficient rotational actuation. Further, the raking support device of the present invention can be applied to a device which requires a raking support device in a configuration such as a photocopier, a list machine, a scanner or a printer.

10a‧‧‧ Backboard

10b, 7b‧‧‧ side panel

12‧‧‧ First link pin

19‧‧‧ Third Link Pin

6‧‧‧Assembly components

6c, 7a‧‧‧ Assembly board

6f‧‧‧Linking Department

6h, 7d‧‧‧ assembly holes

7‧‧‧Support components

7c‧‧‧ actuation board

7e‧‧‧ reinforcing ribs

8‧‧‧Hinges

9‧‧‧First spring shell

9a‧‧‧ Front Board

9c‧‧‧Upper Board

Claims (3)

An opening support device is disposed between a device body of a device and a cover body, wherein the cover system is opened relative to the device body, wherein the open support device comprises: an assembly component that is assembled upright a rear surface of the upper end of the apparatus body; a support member assembled to the cover body and rotatably pivotally supported by a hinge rod disposed in a side of the assembly member adjacent to the apparatus body; a spring case received and fixed in the assembly component; a second spring case received in the first spring case, the upper end of the second spring case being swingably coupled to the support through a first connecting pin a rear side of the hinge rod is disposed in the component; and an elastic member is elastically disposed between the first spring shell and the second spring shell, wherein the upper end portion of the first spring shell is assembled with a second connecting pin, The second connecting pin is engaged with the guiding elongated hole provided on both sides of the second spring case. The opening support device according to claim 1, wherein the support member has an assembled plate portion which is plate-shaped and inserted and fixed to an assembly hole provided at a rear end portion of the cover. An apparatus for using an opening support device as described in claim 1 of the patent application.