TW201634301A - Opening-closing support device - Google Patents

Abstract

The invention provides an opening-closing support device, which could obtain sufficient turning energization force even its size is compact. Wherein, a base portion of support element is rotatably connected to a mount element by a hinge shaft, the mount element is fixed to a main body of device, and the tip portion (oscillating portion) of the support element is fixed to a copy pressing plate. Furthermore, one side of each link element is connected to base portion of the support element, an elastic force generated from compression coil springs is added to the other side of each link element. The elastic force of compression coil springs is added to the base portion of the support element, so that the copy pressing plate could obtain a turning energization force.

Description

Opening support device

The present invention relates to an opening support device suitable for use in opening and supporting a cover, which may be, for example, a documentary press panel of a photocopier.

In the prior art, the original plywood covers the contact glass of a machine such as a photocopier, a scanner or a printing machine to press the original carried on the contact glass. The above-described original pressure plate is supported by an opening device fixed to one side of the apparatus body. This type of opening device has a hinge mechanism for pivotally supporting the original pressing plate around the hinge shaft in an arbitrarily rotatable manner. When the original pressing plate is in the closed state, the hinge mechanism presses the original pressing plate against the upper surface of the apparatus body, and the hinge mechanism exposes the contact glass when the original pressing plate is opened upward.

The above-mentioned opening device comprises an assembly member, a support member and an elastic member, wherein the assembly member is assembled to the device body, the support member is for supporting the original pressing plate and is rotatably disposed on the assembly member through the hinge rod, and the elastic member is disposed at Between the support member and the assembly member and forcing the support member to rotate in the opening direction. Since the original pressing plate is rotated in the opening direction by the arrangement of the elastic member and the supporting member, when the original pressing plate is rotated in the opening direction, the operator can transmit the elastic force of the elastic means without feeling the original pressing plate itself. Open the original platen with the weight.

Patent Document 1: Japanese Patent Laid-Open Publication No. 2010-282158.

In the opening device having the above-described configuration, the opening device assembled on the side of the device body may have, for example, a configuration as shown in Fig. 5(A). Such a conventional opening support device is constructed by applying an upward force to the hinge lever from the spring toward the original mounting table, wherein the hinge lever is for supporting the original pressing plate and rotating the original pressing plate. However, since the hinge lever is positioned rearward with respect to the apparatus body, the apparatus body and the original are opened when the original pressure plate is opened There will be a problem of gaps between the pressure plates. In addition, since the spring force is located in front of the hinge rod, in order to obtain sufficient rotation force for the original pressure plate to pass through the spring, it is necessary to provide a spring with a large load. As a result, the volume of the opening support device cannot be miniaturized.

In view of the above problems, an object of the present invention is to provide an opening support device for a document pressing plate, which is provided with a hinge rod on one side of the apparatus body, so that the gap between the apparatus body and the original pressure plate is greatly reduced. Moreover, the opening support device of the present invention only needs to use a spring with a small load compared to the conventional opening support device. Thereby, the present invention will enable the volume of the opening support device to be smaller.

To achieve the above object, an opening support device of the present invention is disposed between the device body and the original pressing plate, and the original pressing plate is opened relative to the device body. Wherein, the opening support device comprises a hinge rod, a supporting element, a connecting element, a spring receiving element and an elastic element. The hinge rod is supported on one side of the device body. The support member is swingably supported by the hinge rod, and the swing end of the support member is fixed to the original platen. One end of the coupling element is attached to the opposite end of the support element and the opposite end is at the swing end relative to the other side of the hinge rod. The spring receiving member is coupled to the other end of the coupling member. The elastic element applies an actuation force to the spring receiving element through the coupling element, and the actuation force causes the support element to swing in the opening direction.

Further, in an embodiment, the opening support device has a guiding member that is fixed to one side of the device body and limits the direction in which the spring receives the member.

Further, in another embodiment, the guiding element has a receiving portion for receiving the elastic member and the spring receiving member, and the spring receiving member moves within the receiving portion.

According to the configuration of the opening support device of the present invention, the point of application of the actuation force by the elastic member is located outside the hinge rod, and therefore, the present invention can be applied in comparison with the prior art. A sufficient distance is reserved between the force point and the hinge rod, so that a sufficient rotational actuation force can be obtained by using a smaller elastic member.

Secondly, according to the configuration of an embodiment of the present invention, the moving direction of the spring receiving member is limited to the guiding member, and therefore, the kinetic force generated by the elastic member can act more surely on the supporting member.

In addition, according to another embodiment of the present invention, the elastic member and the spring receiving member are housed in the receiving portion of the guiding member, so that the parts can be unitized so that the parts are It is easier to handle when assembling.

1‧‧ ‧photocopying machine

2, 2c‧‧‧ device body

3‧‧ ‧ original plywood

31, 75a, 75b, 75c‧‧‧ assembly holes

4‧‧‧Contact glass

5‧‧‧Opening support device

6‧‧‧Assembly components

61‧‧‧ Back part

611, 921a, 921b, 922a, 922b‧‧‧ holes

612‧‧‧fixed pin

62a, 62b‧‧‧ side section

620a, 620b‧‧‧ shaft branch

621a, 621b‧‧‧ shaft hole

63a, 63b‧‧‧ fixed department

631a, 631b‧‧‧through holes

64‧‧‧ bottom part

65‧‧‧ 收纳 department

7, 7c‧‧‧ support components

70, 70c‧‧‧ Hinge rod

71‧‧‧Assembled fixing department

72a, 72b‧‧‧ shaft joint

73a, 73b‧‧‧ bearing holes

74a, 74b‧‧‧ shaft hole

76, 882a, 882b‧‧‧ recess

76a, 76b, 93a, 93b‧ ‧ bearings

8‧‧‧Guide elements

81, 81a, 81b, 81c‧‧‧Compressed coil spring

82‧‧‧ Backplane

83a, 83b‧‧‧ side panels

84‧‧‧ top board

85a, 85b‧‧‧ rail department

851a, 851b‧‧‧ end

86a, 86b‧‧‧ long hole

87‧‧‧ accommodating department

88‧‧‧Spring bearing components

881‧‧‧ front side

883‧‧‧ shaft retaining section

884‧‧‧ upper surface

884a, 884b‧‧ ‧ spring bearing

9‧‧‧Linked institutions

90‧‧‧First connecting shaft

92a, 92b‧‧‧ linkage elements

94‧‧‧Second connection shaft

95a, 95b‧‧‧ Washers

La, Lb, Ma, Mb‧‧‧ distance

Figure 1 is an overall perspective view of a photocopier.

Figure 2 is a partial perspective view showing the state in which the opening support device of the present invention is assembled to a photocopier.

Figure 3 is an exploded perspective view of the tamping support device of the present invention.

Figure 4 is a perspective view and a side cross-sectional view showing the operation state of the opening support device of the present invention.

Figure 5 is a schematic diagram of the construction of the present invention and the conventional construction.

Hereinafter, an embodiment in which the original press-plate opening support device of the present invention is applied to a photocopier will be described with reference to the related drawings. It should be specially noted that the original plywood opening and lowering 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. For example, a list machine, a scanner, or a printer. Further, the opening support device of the present invention can be directly applied to an opening body other than the original pressing plate (for example, an outer cover of the ink containing portion of the ink cartridge, a toilet seat or a toilet cover). Here, a photocopier, a lister, a scanner, or a printer using the opening support device of the present invention is referred to as a device body.

Figure 1 is an overall perspective view of a photocopier, also referred to as an image forming apparatus. The present invention is based on the assumption that the front-rear direction of the photocopier shown in the drawing is the Y-axis direction, and 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 document pressing plate 3, and the opening support device 5 of the present invention is used to press a document (not shown) onto the contact glass 4 of the device body 2. Specifically, as shown in FIG. 1, the opening support device 5 connects the rear ends of the original pressing plate 3 to the rear upper end of the apparatus body 2 in an openable manner. Further, the original plywood 3 can be classified into two types, one of which contains a conventional automatic document feeding device (not shown), and the other does not include an automatic document feeding device. The opening support device 5 of the present invention can be applied to any of the above-mentioned original press plates, but is more suitable for application on an original press plate which does not include an automatic document feeding device, and is light in weight and can be concavely folded by itself. Handle thicker originals.

2 is a perspective view showing a state in which the opening support device 5 is assembled to the photocopier 1. The opening support device 5 includes an assembly member 6 and a support member 7, and the support member 7 is rotatably supported by the assembly member 6 through a hinge lever 70 as a swing shaft. As shown in FIG. 2, the assembly element 6 is assembled to the upper end portion of the side surface of the apparatus body 2 on the back side, and the hinge rod 70 penetrates the upper end portion of the assembly element 6. The above-described hinge rod 70 also penetrates the bottom end portion of the support member 7, so that the support member 7 is rotatably coupled to the assembly member 6. The swing end of the support member 7 is inserted into the assembly hole 31 formed on the rear end surface of the original pressing plate 3, whereby the swing end of the support member 7 is fixed to the original pressing plate 3. In the above configuration, when the supporting member 7 is rotated about the hinge lever 70, the original pressing plate 3 is swung between the closed state covering the contact glass 4 and the open state in which the contact glass 4 is exposed. That is, the closed state has been shown in (A) of Fig. 2, and the open state has been shown in (B) of Fig. 2.

3 is an exploded perspective view of the opening support device 5. The opening support device 5 includes an assembly member 6, a support member 7, a guiding member 8, and a coupling mechanism 9, which couples the support member 7 and the guiding member 8. The assembly element 6 is a housing for accommodating the guiding element 8 and the coupling mechanism 9, and the assembly element 6 includes a back surface portion 61, side surface portions 62a, 62b, and a bottom surface portion 64, and side surface portions 62a, 62b on the left and right sides. The bottom surface portion 64 is connected to the lower end of the back surface portion 61 and the side surface portions 62a and 62b, respectively, by being connected to both ends of the back surface portion 61 to form a right angle. At the same time, the assembly member 6 is defined by the back surface portion 61, the side surface portions 62a and 62b and the bottom surface portion 64 at the left and right ends, and a housing portion 65 is defined inside, and the guiding member 8 to be described later is housed in the housing portion 65. Further, the back surface portion 61 is formed with a pair of holes 611 and 611, and the guide member 8 is fixed to the assembly element 6 by inserting the fixing pins 612 and 612 through the holes 611 and 611.

The side portions 62a and 62b are respectively formed with fixing portions 63a and 63b. The fixing portions 63a and 63b are formed to be bent outward from the front opening end of the assembly member 6, and the fixing portions 63a and 63b are respectively formed with through holes 631a. , 631a and 631b, 631b. The through holes 631a, 631a and 631b, 631b are used for fixing screws to screw and fix the fixing portions 63a, 63b to the back side surface of the apparatus body 2.

The shaft ends 620a and 620b are respectively protruded from the upper ends of the side surface portions 62a and 62b, and the shaft portions 620a and 620b pivotally support the hinge rod 70 as a swing shaft. Shaft support holes 621a and 621b through which the hinge rod 70 is inserted are formed in the shaft support portions 620a and 620b. Further, the shaft portions 620a and 620b are slightly forward from the front end of the side surface portions 62a and 62b (Y-axis negative side) The shaft holes 621a and 621b are also provided at positions slightly forward of the front side ends of the side surface portions 62a and 62b. By supporting the hinge lever 70 at the above position, the support position of the original pressing plate 3 can be made as close as possible to the apparatus body 2 for the purpose of reducing the rotational moment which is generated by driving the original pressing plate 3 to be opened.

Further, the support member 7 is pivotally supported by the above-described shaft portions 620a, 620b so as to be rotatable. The support member 7 includes a plate-shaped assembly fixing portion 71 and a pair of shaft portions 72a and 72b. The shaft portions 72a and 72b are formed by bending the opposite positions of the both ends of the assembly fixing portion 71. The assembly fixing portion 71 is formed with three assembly holes 75a, 75b, and 75c, and the assembly screws are inserted through the assembly holes 75a, 75b, and 75c and inserted into the assembly holes 31 formed on the back end surface of the original platen 3 to be assembled. The fixing portion 71 is locked to one side of the original pressing plate 3. Further, concave portions 76 and 76 are formed by press-forming on the back end surface of the assembly fixing portion 71, and the concave portions 76 and 76 are used to complement the strength. Further, the shaft joint portions 72a and 72b which are formed by bending both ends of the assembly fixing portion 71 can also achieve the effect of complementing the strength.

The shaft joint portions 72a and 72b are respectively formed with two holes at positions facing each other, one of which is formed with bearing holes 73a and 73b through which the hinge rod 70 is inserted, and the other is formed by a joint mechanism 9 which will be described later. The first connecting shaft 90 is inserted into the through shaft holes 74a and 74b. The first connecting shaft 90 is for connecting the connecting members 92a and 92b of the coupling mechanism 9.

The shaft holes 74a and 74b are provided on opposite sides of the assembly fixing portion 71 centering on the bearing holes 73a and 73b. The hinge rod 70 is inserted through the bearings 76a and 76b having the baffles into the bearing holes 73a and 73b, and the first connecting shaft 90 is inserted through the bearings 93a and 93b having the baffles and inserted into the shaft holes 74a and 74b. Thereby, the support member 7 is rotated about the hinge lever 70, and at this time, the shaft holes 74a, 74b are swung in the swing direction opposite to the original press plate 3.

As described above, the guiding member 8 is housed and fixed in the housing portion 65 of the assembly member 6. Here, the guiding member 8 includes a backing plate 82, side plates 83a, 83b and a top plate 84. The backing plate 82 is located on the back surface of the guiding member 8 and overlaps the back surface portion 61 of the assembling member 6, and the side plates 83a, 83b are back. The left and right ends of the plate 82 are bent at right angles, and the top plate 84 is connected to the upper ends of the back plate 82 and the side plates 83a, 83b. Further, the front side ends of the side plates 83a and 83b are formed with rail portions 85a and 85b which are formed to be bent in opposite directions (inside), and the opposite ends of the rail portions 85a and 85b are opposite to each other. The 851a and 851b are rails that are parallel to each other.

In addition, the relative positions of the side plates 83a, 83b are respectively formed as guides. Long holes 86a, 86b of the means. The second connecting shaft 94 is inserted into and penetrates the long holes 86a and 86b. The accommodating portion 87 formed by the back plate 82, the side plates 83a, 83b, and the top plate 84 houses a pair of compression coil springs 81a, 81b as elastic members and a spring receiving member 88 as a moving member. The compression coil springs 81a, 81b are inserted between the top plate 84 and the spring receiving member 88 in a compressed state. Moreover, the peripheral shape of the cross-sectional shape of the spring receiving member 88 on the XY plane is approximately the same as the inner shape of the cross-sectional shape of the accommodating portion 87 on the XY plane, whereby the spring receiving member 88 can stably maintain the moving track of the member. Next, it is moved inside the accommodating portion 87 by the guidance of the accommodating portion 87.

The upper surface 884 of the spring receiving member 88 is formed with a recess at a position abutting against the compression coil spring 81b and is provided with spring receiving portions 884a, 884b having the same shape as the cross-sectional shape of the compression coil springs 81a, 81b. . Thereby, the spring receiving portions 884a and 884b having the above-described shape can keep the compression coil springs 81a and 81b more stable. Further, the spring receiving member 88 has concave portions 882a and 882b formed at both ends of the front side surface 881. The widths of the concave portions 882a and 882b are substantially the same as the widths of the rail portions 85a and 85b, and the rail portions 85a and 85b are overlapped with the concave portions 882a and 882b. And the convex portion between the concave portions 882a, 882b is fitted between the end edges 851a, 851b. Thereby, the spring receiving member 88 can smoothly reciprocate through the action of the rail portions 85a and 85b.

Further, the lower end portion of the spring receiving member 88 is provided with a shaft holding portion 883 for holding the second connecting shaft 94 and forming a groove provided in the X-axis direction. Thereby, the spring receiving member 88 is pushed upward by the second connecting shaft 94, and is pushed downward by the compression coil springs 81a and 81b.

Next, the structure of the connection mechanism 9 will be described. The connecting mechanism 9 includes a first connecting shaft 90, a second connecting shaft 94, and connecting members 92a and 92b. The connecting members 92a and 92b are for connecting the first connecting shaft 90 and the second connecting shaft 94. One end of each of the connecting elements 92a and 92b is provided with a hole 922a, 922b, and both ends of the first connecting shaft 90 are rotatably connected to the holes 922a, 922b, and the other ends of the connecting elements 92a, 92b are respectively provided with holes. 921a and 921b, both ends of the second connecting shaft 94 are rotatably connected to the holes 921a and 921b. Further, the second connecting shaft 94 is inserted into the long holes 86a and 86b, and the washers 95a and 95b are inserted between the side plates 83a and 83b.

In the above-described joint mechanism 9, when the original pressure plate 3 is opened In operation, the first connecting shaft 90 moves in the opposite direction with respect to the swinging direction of the original pressing plate 3. For example, when the original pressing plate 3 is lifted up, the first connecting shaft 90 will move downward, and when the original pressing plate 3 is pulled down, the first connecting shaft 90 will move upward.

Next, the present invention will be described with respect to the operation of the opening support device 5 having the above configuration in accordance with the oblique view and the side sectional view shown in FIG. In Fig. 4, the upper half of the figure (Fig. 4 (A)) is a perspective view, and the lower half of the figure (Fig. 4 (B)) is a side view of the assembled component 6 in a cross-sectional state. Here, the left side of FIG. 4 shows a state in which the supporting device 5 is opened when the original pressing plate 3 is in the closed state. In this state, the original pressing plate 3 covers the contact glass 4, that is, in a state of being at the lowest position. At the same time, in this state, the first connecting shaft 90 connected to the supporting member 7 is positioned at the uppermost position, and the second connecting shaft 94 is also positioned at the uppermost position. In other words, the spring receiving member 88 connected to the second coupling shaft 94 at this time has the largest compression range for the compression coil springs 81a, 81b, and therefore, in the above state, the rotary pressing force of the original pressing plate 3 acting in the opening direction thereof maximum. Here, when the original pressing plate 3 is lifted, as shown in the central drawing of Fig. 4, the supporting member 7 will be rotated upward. At this time, as the support member 7 rotates upward, the first connecting shaft 90 will move downward (Z-axis negative direction), and the second connecting shaft 94 will also move downward in the long holes 86a, 86b (Z-axis negative) Direction) move. Thereby, the rotational actuation force generated by the elastic force of the compression coil springs 81a, 81b can make the opening operation of the original pressure plate 3 more labor-saving.

Further, when the original pressing plate 3 is pushed up to the maximum opening state, as shown in the right drawing of FIG. 4, the supporting member 7 is approximately in a vertical state, and the first connecting shaft 90 is moved to the lowermost position while The second connecting shaft 94 will also move along the long holes 86a, 86b to the lowest position, and the compression coil springs 81a, 81b will extend to the maximum amplitude and remain in the compressed state.

Figure 5 is a schematic diagram of the structure (B) of the present invention and the conventional structure (A). The conventional structure (A) is such that a compression coil spring 81c is disposed between the hinge rod 70c and the apparatus body 2c, and an elastic force generated by the compression coil spring 81c acts between the hinge rod 70c and the apparatus body 2c, so that the hinge rod 70c and A large distance La needs to be reserved between the device bodies 2c. In addition, in general, the longer the distance from the center point of the hinge rod to the point of application, the stronger the rotational actuation force generated by the elastic force of the compression coil spring and centered on the hinge rod, and the hinge of the present invention (B) is hinged The distance Mb from the center point of the rod to the point of application is longer than the distance Ma from the center point of the hinge rod to the point of application of the conventional structure (A). Therefore, the rotational actuation force of the present invention is strong. Therefore, in the conventional structure (A), When the original pressing plate is opened, the gap between the supporting member 7c and the apparatus body 2c becomes large, and a compression coil spring 81c having a large spring load is required. In this regard, in the structure (B) of the present invention, the distance Lb between the hinge rod 70 and the apparatus body 2 is smaller than the distance La of the above-described structure (A), and the distance Mb described above is larger than the distance Ma of the conventional structure (A). Longer, therefore, the use of a compression coil spring 81 with a small spring load can meet the requirements of the present invention, making the size of the opening support device smaller.

With the above configuration, the opening support device of the present invention can reduce the gap generated when the original pressing plate and the apparatus body are opened, and can provide sufficient rotational actuation force to the original pressing plate even if the volume of the opening and closing support device is reduced. Further, the opening support device of the present invention can be applied to a machine such as a photocopier, a list machine, a scanner or a printer.

2‧‧‧ device body

3‧‧ ‧ original plywood

31‧‧‧Assembled holes

5‧‧‧Opening support device

6‧‧‧Assembly components

7‧‧‧Support components

70‧‧‧ Hinge rod

Claims (3)

An opening support device is disposed between a device body and an original pressing plate, wherein the original pressing plate is opened relative to the device body, wherein the opening supporting device comprises: a hinge bar, Supporting on one side of the device body; a supporting member pivotally supported by the hinge rod, the swinging end of the supporting member being fixed to the original pressing plate; and a connecting member having one end connected to the connecting member a reverse side end of the support member, the opposite end position being opposite the other side of the hinge rod at the swing end; a spring receiving member coupled to the other end of the joint member; and an elastic member A constant power is applied to the spring receiving member through the connecting member, and the actuation force causes the supporting member to swing in the opening direction. The opening support device according to claim 1, which has a guiding member fixed to one side of the device body and restricting the moving direction of the spring receiving member. The opening support device of claim 2, wherein the guiding member has a receiving portion for receiving the elastic member and the spring receiving member, and the spring receiving member is in the receiving portion mobile.