JP2016136218A - Hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge that downsizes a fixing plate fixing a manuscript pressure plate, and prevents strength from falling.SOLUTION: A hinge 100 comprises a hinge case 10, a slide case 20 and a fixing plate 30. A resin-made slide member 40 is housed that is slidable inside the slide case 20, and a first spring 50 is inserted between a bottom part 21 of the slide case 20 and the slide member 40. By urging force of the first spring 50, the fixing plate 30 is given force in a rotating direction spaced apart from the slide case 20, and in the slide member 40, a slide protrusion part 43 is formed that extends from the slide case 20 in a direction orthogonal to a slide direction in the slide case 20. The slide protrusion part 43 of the slide member 40 and an inner face of the hinge case 10 slide, and thereby the slide case 20 is made movable inside the hinge case 10.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a hinge for connecting a rotating part such as a document crimping plate to a main body part such as an office device so as to be opened and closed.

  Conventionally, many office machines used in offices such as copying machines, facsimile machines, scanners, and the like have a document reading section (contact glass) on the upper surface of the main body, and a document pressing plate that covers the document reading section is rotated. It is provided as a moving part. The document crimping plate is for bringing the document placed on the document reading unit into close contact with the document reading unit and holding the position of the document with respect to the document reading unit. A hinge is used as an instrument for connecting the main body of such office equipment and the original cover.

  In the hinge configured as described above, the document pressing plate can be moved in the vertical direction of the main body portion in order to stably press the thick original document such as a book on the upper surface of the main body portion. (See, for example, Patent Document 1 and Patent Document 2). Specifically, the hinge according to the related art includes an insertion portion extending in the height direction of the main body portion, and the insertion portion is slidably inserted into a hole provided in the main body portion. The hinge is movable in the height direction.

JP 2008-224704 A JP 2008-268521 A

  According to the hinge according to the prior art, a configuration such as a spring and a slider for generating torque in the hinge is provided on the rotating portion side (original pressure plate side). For this reason, the connection part of a hinge and a rotation part became large, and design restrictions were large. On the other hand, when a structure such as a spring or a slider is provided on the main body side, a slide case for housing the slider is required, so that the sliding property between the slide case and the hinge main body can be secured inside the hinge. It was difficult.

  The present invention has been made in view of the above situation, and the problem to be solved by the present invention is to reduce the design constraints by making the connecting portion with the rotating portion compact, and to reduce the inside of the hinge. It is providing the hinge which can improve the slidability of.

  Hereinafter, means for solving the above problems will be described.

  That is, in claim 1, a cylindrical hinge case, a slide case that is movably accommodated inside the hinge case and one end portion of which can extend from the hinge case, and the slide case A fixed plate that is pivotally supported at the one end, the hinge case is fixed to the main body, and the fixed plate is fixed to the rotating portion, whereby the rotating portion is fixed to the main body. A hinge that is pivotably and slidably connected to a slide portion, and a resin-made slide member that is slidable inside the slide case is housed inside the slide case, and a bottom portion of the slide case A compression spring is inserted between the slide member and the slide plate on the side of the fixed plate abutting against the slide member and fixing the slide member. A cam portion that is close to and away from the slide member is formed by the rotation of the rate, and the biasing force of the compression spring applies a force in the rotation direction in which the fixed plate is separated from the slide case. A sliding projection extending from the sliding case is formed in a direction orthogonal to the sliding direction in the sliding case, and the sliding projection of the sliding member and the inner surface of the hinge case slide. Thus, the slide case can be moved inside the hinge case.

  According to a second aspect of the present invention, the slide case is formed with an engagement protrusion that protrudes in a direction orthogonal to the moving direction in the hinge case, and the hinge case is engaged with the engagement protrusion. A joint hole is formed, and the engagement projection and the engaged hole engage with each other, whereby movement of the slide case in the hinge case is restricted.

  The hinge which concerns on this invention produces the effect that the design restrictions become small by making a connection part with a rotation part compact, and the slidability inside a hinge can be improved.

The left view which shows the multifunctional machine which comprises the hinge concerning one Embodiment of this invention. The left view which shows the hinge of the obstruction | occlusion state. The rear view which shows the hinge of the obstruction | occlusion state. The left view which shows the hinge of a lift state. The rear view which shows the hinge of a lift state. The left view which shows the hinge of a 60 degree open state. The rear view which shows the inside of the hinge of the obstruction | occlusion state. Sectional drawing which shows the hinge of the obstruction | occlusion state (AA sectional view taken on the line in FIG. 3). Sectional drawing which shows the hinge of a lift state. Sectional drawing which shows the hinge of a 60 degree open state. (A) And (b) is the rear view and left view which respectively show a fixed plate. The perspective view which shows a slide member and a slide case. BB sectional drawing in FIG.

Hereinafter, a multifunction machine 1 that is an office machine including a hinge 100 according to an embodiment of the present invention will be described with reference to FIG.
The multi-function device 1 includes a main body 2 and an original cover 3. In the present embodiment, the multifunction device 1 includes the hinge 100, but another office device different from the multifunction device 1 may include the hinge 100.

The main body 2 is an embodiment of the main body according to the present invention.
The main body 2 includes a document reading device, a control device, a printing device, a display device, and an input device.
The document reading device is disposed on the upper surface of the main body 2. The document reading device reads a document placed on the upper surface of the main body 2 (generates image information of the document).
The control device controls the operation of each unit of the multi-function device 1, more specifically, the operation of the document reading device, the printing device described later, and the ADF described later. Further, the control device can store the image information generated by the document reading device and the image information acquired through a line (Internet line or the like) connected to the main body 2.
The printing apparatus is disposed below the document reading apparatus. The printing device prints an image on a predetermined sheet based on the image information stored by the control device.
The display device is composed of a liquid crystal panel, for example, and displays information related to the operation status of the multifunction device 1.
The input device includes, for example, a button, a switch, and the like, and is operated when an operator inputs an instruction or the like to the multifunction machine 1. The display device and the input device are disposed on the front surface of the main body 2.

The original cover 3 is an embodiment of a rotating unit according to the present invention.
The document crimping plate 3 presses (crimps) the document placed on the document reading device toward the document reading device, so that the document moves when the document reading device reads the document (relative to the document reading device). Change of the general position).
The document pressing plate 3 includes a document storage tray before reading, an ADF (Auto Document Feeder), and a document storage tray after reading.
The ADF sequentially takes out a plurality of documents stored in a stacked state in a document storage tray before reading one by one and places them on a predetermined reading position on the document reading device. After the reading of the original by the original reading device is completed, the ADF conveys the original placed on the reading position to the original receiving tray after reading.

“Office equipment” refers to an apparatus having at least a function of reading a document (acquiring image information of the document).
Specific examples of office equipment include: (a) a scanner having a function of reading a document and a function of transmitting image information relating to the read document to another device (for example, a personal computer); (b) a function of reading a document; A fax machine having a function of transmitting image information related to a read document to another device via a communication line and a function of printing out image information acquired from the other device; (c) a function of reading the document and the read document A copying machine having a function of printing out image information according to the above, and (d) a multifunction machine that also functions as a scanner, a fax machine, and a copying machine.

  In the following description, the rotation angle θ of the original cover 3 when the original cover 3 is closed (when the lower surface of the original cover 3 is in contact with the upper surface of the main body 2) (more precisely, the main body When the rotation angle θ of the original cover 3 with respect to 2 is set to “0 °” and the original cover 3 is rotated in the opening direction, the rotation angle θ increases (the rotation angle θ becomes positive). The rotation angle θ of the original cover 3 is defined as follows (see FIG. 1).

Hereinafter, the hinge 100 will be described with reference to FIGS. 1 to 13.
As shown in FIG. 1, the hinge 100 connects the original cover 3 to the main body 2 of the multifunction machine 1 so as to be rotatable. Specifically, the hinge case 10 is fixed to the main body 2 of the multifunction device 1, and the fixing plate 30 is fixed to the original pressure plate 3 of the multifunction device 1, so that the original pressure plate 3 is rotated with respect to the main body 2. Connect as possible and slidable.

  As shown in FIGS. 2 to 10, the hinge 100 is a cylindrical hinge case 10, a slide case 20 that is movably accommodated inside the hinge case 10, and whose upper end portion can extend from the hinge case 10, A fixed plate 30 that is pivotally supported by the rotation shaft 25 at the upper end of the slide case 20, a resin-made slide member 40 that is slidably accommodated inside the slide case 20, a bottom portion of the slide case 20, and the slide member 40 1st spring 50 etc. which are compression springs inserted in between.

  In the following, for the sake of convenience, when the original cover 3 is closed with respect to the main body 2 (when the rotation angle θ = 0 °), the vertical direction, the front / rear direction, and the left / right direction of the multifunction machine 1 are used as references (the original cover 3 The shape of each member constituting the hinge 100 is such that the vertical direction, the front-rear direction, and the left-right direction of the multifunction machine 1 when the is closed with respect to the main body 2 correspond to the vertical direction, front-rear direction, and left-right direction of the hinge 100 Will be explained.

  The hinge case 10 is a cylindrical member opened on the upper side, and is fixed to the main body 2 of the multifunction machine 1. The hinge case 10 is formed by appropriately bending a single metal plate at a right angle. The hinge case 10 includes a back plate 11, left and right side plates 12, 12, a bottom plate 13, and front plates 14a, 14b.

  The back plate 11 is a plate-like member that forms the rear part of the hinge case 10. The back plate 11 is formed in a generally rectangular shape that is slightly long in the vertical direction when viewed from the back. An engaged hole 11 a, which is a long hole having a longitudinal direction in the vertical direction, is opened through the back plate 11 at the lower portion of the back plate 11.

  The side plates 12 and 12 are plate-like members that form the left and right sides of the hinge case 10. The side plates 12 and 12 are formed longer in the vertical direction than the back plate 11 in a side view. The rear end portions of the side plates 12 and 12 are connected to the left and right end portions of the back plate 11. A fixing hole 12 a, which is a long hole having a longitudinal direction in the front-rear direction, is opened through the side plate 12 below the side plates 12. Legs 12b and 12b are formed at the lower ends of the side plates 12 so as to protrude downward. In addition, a support portion 12 c that is a recess for supporting the sleeve 27 through which the rotation shaft 25 is inserted is formed at the upper end portion of each side plate 12.

The bottom plate 13 is a plate-like member that forms the bottom of the hinge case 10. The back plate 13 is formed in a substantially square shape in plan view. The rear end portion of the bottom plate 13 is connected to the lower end portion of the back plate 11.
Protrusions 13a and 13a projecting sideways are formed on the left and right ends of the bottom plate 13, and the projections 13a and 13a are inserted into the fixing holes 12a and 12a of the side plates 12 and 12, thereby enabling the hinge case Forms a strong structure.

  The front plate 14 a is a plate-like member that forms the lower part on the front side of the hinge case 10. The lower end portion of the front plate 14 a is connected to the front end portion of the bottom plate 13. The front plates 14b and 14b are plate-like members forming the front side portion of the hinge case 10 (see FIGS. 8 to 10 and 13). A side end portion of the front plate 14b is connected to a front end portion of the side plates 12 and 12. The front side of the hinge case 10 has a large opening between the front plates 14b and 14b above the front plate 14a.

  As shown in FIGS. 7 and 12, the slide case 20 is a member formed in a substantially U shape when viewed from the front, and is accommodated in the hinge case 10 so as to be movable. Further, the upper end portion of the slide case 20 can be extended from the upper portion of the hinge case 10. The slide case 20 is formed by appropriately bending a single metal plate at a right angle. The slide case 20 includes a slide bottom plate 21, left and right slide side plates 22, 22, a rear slide back plate 23, and a front slide front plate 24.

  The slide bottom plate 21 is a plate-like member that forms the bottom of the slide case 20, and is formed in a substantially square shape in plan view. An accommodation portion 21a for accommodating the second spring 51, which is a compression spring, is formed in the center portion of the slide bottom plate 21 with the opening portion facing downward. A second spring 51 is accommodated in the accommodating portion 21 a and is interposed between the bottom plate 13 of the hinge case 10. The slide case 20 is biased upward by the elastic force of the second spring 51.

  The slide side plates 22 and 22 are plate-like members that form the left and right sides of the slide case 20. The slide side plates 22 and 22 are long in the vertical direction in a rectangular shape in a side view. Lower end portions of the slide side plates 22 and 22 are connected to left and right end portions of the slide bottom plate 21. As shown in FIG. 12, an insertion hole 22 a for inserting the rotation shaft 25 is opened through the slide side plate 22 at the upper part of each slide side plate 22.

  The slide back plate 23 is a plate-like member that forms the rear part of the slide case 20. The slide back plate 23 is formed in a rectangular shape short in the vertical direction when viewed from the back. The lower end portion of the slide back plate 23 is connected to the rear end portion of the slide bottom plate 21. As shown in FIGS. 8 to 10, an engagement pin 29 is fixed to the upper portion of the slide back plate 23 as an engagement protrusion.

  The slide front plate 24 is a plate-like member that forms the front portion of the slide case 20. The slide front plate 24 has a rectangular shape that is short in the vertical direction when viewed from the back, and is formed in the same shape as the slide back plate 23. The lower end portion of the slide front plate 24 is connected to the front end portion of the slide bottom plate 21.

  As shown in FIGS. 11A and 11B, the fixing plate 30 is a member formed by bending a single metal plate at an appropriate right angle. The fixed plate 30 includes a top plate portion 31 disposed so as to be parallel to the rotation shaft 25, rectangular side plate portions 32 and 32 that are suspended downward from both sides of the top plate portion 31, and the side plate portion 32. -Extension part 33 * 33 extended outside from the lower side of 32, the front board part 34 hanging down from the front side of the top-plate part 31, the substantially triangular shape bent backward from the both sides of the front board part 34 The middle plate portion 35, 35 and the like are provided. As shown in FIG. 11B, the side plate portions 32 and 32 and the middle plate portions 35 and 35 are arranged so that a part thereof is overlapped in a side view. In other words, the middle plate portions 35 and 35 are disposed so that a part thereof is located between the side plate portions 32 and 32.

  In the rear portion of the side plate portion 32, an insertion hole 32 a for inserting the rotating shaft 25 is opened through the side plate portion 32. Similarly, an insertion hole 35 a for inserting the rotation shaft 25 is opened through the middle plate portion 35 at the rear portion of the middle plate portion 35. Further, an insertion hole 35 b for inserting the camshaft 36 is opened through the middle plate portion 35 at the lower part of the middle plate portion 35 and in front of the rotation shaft 25. The camshaft 36 is inserted into the insertion hole 35b and disposed on the lower side of the fixed plate 30 which is the slide member 40 side, so that the camshaft 36 contacts the cam surface 42a of the slide member 40 and the fixed plate 30 rotates. Therefore, it functions as a cam portion that approaches and separates from the slide member 40.

  As shown in FIG. 3, the fixed plate 30 is pivotally supported by the rotation shaft 25 at the upper end portion of the slide case 20. Specifically, as shown in FIG. 7, the rotation shaft 25 is inserted into the insertion holes 32a and 32a of the side plates 32 and 32, the insertion holes 22a and 22a of the slide side plates 22 and 22, and the insertion holes 35b of the middle plates 35 and 35. The fixed plate 30 is pivotally supported by the slide case 20 by being inserted through 35b. Specifically, a bearing 28 is disposed in the insertion hole 22 a, and the rotation shaft 25 and the fixed plate 30 are rotatable with respect to the slide case 20 by inserting the rotation shaft 25 through the bearing 28. It is supported. At this time, E-rings are arranged at both left and right end portions (outside the side plate portions 32, 32) of the rotation shaft 25 to restrict the axial position of the rotation shaft 25.

  A sleeve 27 is interposed around the rotation shaft 25 between the side plate portion 32 and the slide side plate 22. In other words, the sleeve 27 is inserted into the insertion hole 32a, the sleeve 27, and the insertion hole 22a in a state where the sleeve 27 is disposed between the side plate part 32 and the slide side plate 22, whereby the sleeve 27 is inserted into the side plate part 32. And the slide side plate 22. The sleeves 27 and 27 are supported from below by support portions 12 c formed on the side plates 12 and 12 of the hinge case 10.

  The slide member 40 is a resin member that is slidably accommodated inside the slide case 20 as shown in FIGS. The slide member 40 is a bottomed cylindrical member that is open at the bottom, and includes a main body portion 41, a cam portion 42, and a sliding protrusion 43.

  The main body 41 is a part that forms the main body of the slide member 40, and an accommodation hole 41a that opens downward is formed in the main body 41. The cam portion 42 is a portion that protrudes upward from the upper surface of the main body portion 41, and a cam surface 42 a that contacts the camshaft 36 disposed on the fixed plate 30 is formed on the upper surface of the cam portion 42. Further, oil fences 42b and 42b protruding upward are formed at both front and rear end portions of the upper surface (cam surface 42a) of the cam portion 42. The oil fences 42b and 42b prevent the oil flowing into the cam surface 42a from flowing back and forth from the cam surface 42a, and suppress the deterioration of the sliding performance of the cam surface 42a with the cam shaft 36. As shown in FIG. 12, the sliding protrusion 43 extends from the slide case 20 in the front-rear direction and the left-right direction orthogonal to the sliding direction (vertical direction) of the slide member 40 in the slide case 20.

  A first spring 50 is inserted between the slide bottom plate 21 of the slide case 20 and the slide member 40. Specifically, as shown in FIGS. 8 to 10, the lower end portion of the first spring 50 is brought into contact with the upper surface of the slide bottom plate 21, and the upper end portion is accommodated in the accommodation hole portion 41 a of the slide member 40. It is contacted to the bottom surface.

  As described above, by inserting the first spring 50 between the slide case 20 and the slide member 40, the biasing force of the first spring 50 applies a force in the rotational direction in which the fixed plate 30 is separated from the slide case. Is granted. Specifically, as shown in FIG. 8, the force from the first spring 50 is transmitted to the camshaft 36 disposed on the fixed plate 30 via the cam surface 42 a of the slide member 40. As a result, as shown in FIG. 10, the front portion of the fixed plate 30 (the portion where the front plate portion 34 is formed) rotates upward.

  Since the fixed plate 30 is connected to the slide case 20, when the slide case 20 moves upward within the hinge case 10 by the biasing force of the second spring 51, the fixed plate 30 also moves as shown in FIG. Slide up and away from 10.

  In the present embodiment, as shown in FIGS. 8 to 10 and 13, the sliding case 43 slides between the sliding protrusion 43 of the sliding member 40 and the inner surface of the hinge case 10, so that the slide case 20 is inside the hinge case 10. It can be moved. Specifically, the sliding projection 43 extending from the front side of the slide case 20 slides with the front plates 14 b and 14 b and the side plates 12 and 12 of the hinge case 10. Further, the sliding projection 43 extending from the rear side of the slide case 20 slides on the back plate 11 and the side plates 12 and 12 of the hinge case 10.

  According to the hinge 100 according to the present embodiment, the configuration of the first spring 50 and the slide member 40 for generating torque in the hinge 100 is provided in the hinge case 10 fixed to the main body 2. For this reason, it is possible to make the fixed plate 30 that is a connecting portion between the hinge 100 and the original document pressure plate 3 compact, and the design restrictions of the hinge 100 can be reduced.

  Moreover, the slide member 20 is formed by forming the slide protrusion 43 extending from the slide case 20 on the slide member 40 and sliding the slide protrusion 43 and the inner peripheral surface of the hinge case 10. And the hinge case 10 do not slide. That is, by making the slide member 40 and the hinge case 10 slide inside the hinge 100, the slidability inside the hinge 100 can be improved.

  Further, in the hinge 100 according to the present embodiment, the slide case 20 is formed with an engagement pin 29 that protrudes rearward in a direction orthogonal to the vertical direction that is the moving direction in the hinge case 10. Further, the hinge case 100 is formed with an engaged hole 11 a that engages with the engaging pin 29. Then, as shown in FIG. 5, the engagement pin 29 and the engaged hole 11a are engaged, so that the movement of the slide case 20 in the hinge case 10 is restricted. In the present embodiment, this configuration prevents the slide case 20 from coming out of the hinge case 10 even when the slide case 20 moves inside the hinge case 10.

DESCRIPTION OF SYMBOLS 10 Hinge case 20 Slide case 30 Fixed plate 40 Slide member 43 Sliding protrusion 50 First spring 100 Hinge

Claims (2)

A cylindrical hinge case, a slide case that is movably accommodated inside the hinge case and whose one end can be extended from the hinge case, and is rotatable at the one end of the slide case A fixed plate that is pivotally supported, the hinge case is fixed to the main body, and the fixed plate is fixed to the rotating portion, whereby the rotating portion can be rotated with respect to the main body. A hinge that is slidably coupled,
Inside the slide case, a resin-made slide member slidable inside the slide case is accommodated,
A compression spring is inserted between the bottom of the slide case and the slide member,
On the side of the slide member in the fixed plate, a cam portion that is in contact with the slide member and close to and away from the slide member by rotation of the fixed plate is formed.
By the biasing force of the compression spring, a force is applied in a rotating direction in which the fixed plate is separated from the slide case,
The slide member is formed with a sliding projection extending from the slide case in a direction perpendicular to the sliding direction in the slide case,
A hinge in which the slide case is movable within the hinge case by sliding the sliding protrusion of the slide member and the inner surface of the hinge case. The slide case is formed with an engagement protrusion that protrudes in a direction perpendicular to the moving direction in the hinge case.
The hinge case is formed with an engaged hole that engages with the engaging protrusion,
The hinge according to claim 1, wherein movement of the slide case in the hinge case is restricted by engagement of the engagement protrusion and the engaged hole.

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