KR20070111748A - Hinge device for opening and shutting of cover - Google Patents

Abstract

A hinge device for opening and closing a cover is provided to support a cover of a copier or a scanner stably which covers a thick book or the like by allowing stress to work on contact surfaces of a cam and a support part which are surface-contacted with each other. A lower housing(10) is fastened to an upper end surface of a main body of a copier or a scanner. A support block(20) is formed at an inner side of an upper end of the lower housing(10) and includes a platy contact surface at its upper portion. An upper housing(30) allows the lower housing(10) to be introduced to an inner side of its lower portion and includes support pieces inwardly bent at both front sides thereof. Upper and lower guide blocks(40a,40b) are installed at an inner side of the upper housing(30). An auxiliary housing(60) is positioned at an outer portion of the upper housing(30) and has fixed flanges(63) to be fastened to one side of the cover. A fixed bar(70) is fastened to a fixing hole of the auxiliary housing(60).

Description

HINGE DEVICE FOR OPENING AND SHUTTING OF COVER}

1 is a perspective view showing a state in which a conventional hinge device for opening and closing the cover is mounted on the copier.

Figure 2 is a perspective view showing a hinge device for opening and closing the present invention.

Figure 3 is an exploded perspective view showing the configuration of the present invention cover opening and closing hinge device.

Figure 4 is a cross-sectional view showing the configuration of the cover opening and closing hinge device of the present invention.

5 is a sectional view showing a state in which the cover is lifted by the cover opening and closing hinge device of the present invention.

Figure 6 is a sectional view showing a state in which the cover is folded inward in the lifted state by the cover opening and closing hinge device of the present invention.

<Description of the symbols for the main parts of the drawings>

10: lower housing 11: the first fitting hole

12: 2nd hole 13: bushing

20: support block 21: coupling hole

22: contact surface 30: upper housing

31: First fastener 32: Second fastener

33: guide groove 40a: upper guide block

40b: Lower guide block 41, 42: Spring mounting groove

50: spring 60: auxiliary housing

61: pin coupling hole 62: fixing hole

63: fixing flange 70: fixing rod

P1, P2, P3: Pin

The present invention relates to a cover opening and closing hinge device which is configured in a copying machine and a scanner to cover an upper part of an original, and more particularly, to easily cover a thick document such as a book to facilitate copying or scanning, as well as a cam and A hinge for a cover opening / closing device is provided in which a stress on a contact surface is applied by surface contact with a support part so that a cover covering a thick document can be stably supported.

In general, a copier or scanner that reads an image of an original includes a cover for covering the original so that the original adheres well to the side to which the original is copied or scanned, and unnecessary light does not enter the surroundings. have.

As shown in FIG. 1, the cover further includes a hinge device 3 that connects the main body 2 and the cover to both sides of the lower end of the cover 1, and opens and closes the cover from the main body 2. It is used as a means for maintaining and stopping a constant angle around the hinge device to facilitate opening and closing.

Looking at the hinge device of the conventional cover, the housing is coupled to the main body and provided with an open storage space of the upper portion, the housing is formed with a hole in which the fixed shaft is fitted and a guide groove into which the movable shaft is fitted; An additional portion is formed, an inclined portion in contact with the moving shaft and an end portion formed at a lower end of the inclined portion, a cover coupling block having a projection limiting an operating angle of the cover, and a shaft hole into which the fixed shaft is fitted; The guide block is installed in the housing space of the housing is supported by a spring, the lower portion is formed with an inclined surface, the upper side is formed with an oil groove in which oil is injected along the inclined surface, and the cover coupling block and the housing is fixed A moving shaft positioned between the shaft and the cover coupling block and the guide block and moved along the guide groove of the housing Is Trojan configuration.

In the conventional cover hinge device configured as described above, when the cover is closed, the movable shaft is positioned between the inclined surface of the guide block and the end of the cover coupling block so that the end of the cover coupling block contacts one side of the housing and the cover is no longer closed. When the cover is opened, the movable shaft moves from the lower side of the guide groove of the housing to the upper side while contacting the inclined surface of the guide block by the elastic force of the spring, so that the stopper of the cover coupling block coupled with the cover contacts the end of the housing. Therefore, the cover is limited to open more than a certain angle.

However, in the case of the conventional cover hinge device, the cover engaging block, which is a means for supporting the opened cover while the cover is opened, has an arc shape, so that the contact between the cover engaging block and the housing when the cover is opened is prevented. In the case of a linear contact, when the angle is more than a certain angle, there is a problem that the supporting force is lowered and the cover falls.

In this way, when the cover is dropped, a problem occurs that causes a wound to the user's hand, and in severe cases, a problem such as breaking the glass surface of the copier or the scanner due to an impact occurs.

In addition, a conventional hinge device for opening and closing a cover of a copier or a scanner has been devised in various ways. For example, when looking at the cover opening and closing hinge device of Korean Utility Model Registration No. 306975, the cover is connected to the main body and the cover moves up and down. In the hinge for opening or closing the copier or scanner cover, which is configured to be provided, an installation space for installing the hinge device component is formed inside, one side is open, the other side is sealed, and a hole is formed to allow the fixed shaft to be coupled. The housing is formed with a guide groove inclined so that the movable shaft can move, and the shaft hole is formed so that the fixed shaft penetrates and engages with the housing. An inclined surface in contact with the shaft is formed and a stopper portion and a flat portion on the extension line Cover coupling block is formed and formed with projections for limiting the cover is opened more than a certain angle, one side is formed with a cylindrical projection and the other side is formed with an inclined surface and the guide block is moved up and down by the elastic force of the spring along the inside of the housing And a fixed shaft for coupling the cover coupling block and the housing, a movable shaft disposed between the cover coupling block and the guide block and moving along the guide groove of the housing, a ring for preventing separation of the fixed shaft and the movable shaft, and an elastic force. It consists of a spring that provides a.

Therefore, it is possible to maintain and stop a constant opening angle when the cover is opened, and to allow the hinge to move up and down to cover the thick document.

In this case, however, one side of the cover coupling block is formed in an arc shape, and when the cover is opened by contacting the rigid guide block with one side formed in the arc shape, the cover coupling block and the guide block are supported. The contact force between the contact is reduced by the line contact between the cover coupling block is a slip phenomenon occurs from the guide block, there is a problem that the open cover falls.

The present invention has been made to solve the problem of the opening and closing hinge device of the cover mounted on a conventional copier or scanner, further comprising a support block formed with a flat contact surface portion on one side, the contact with the guide block is not a line contact By making contact with the surface, stress on the contact surface can be applied, thereby increasing the bearing capacity of the cover and preventing the opened cover from falling off, as well as pin-coupled to the housing and the housing into which the spring is interposed. The purpose of the present invention is to provide a cover opening / closing hinge device which further includes an auxiliary housing coupled to and facilitates the opening and closing of the cover, as well as the support force of the original such as a thick book.

In the hinge device for a cover opening and closing the present invention to achieve the above object, the cover and the main body connected to the upper portion of the main body of the copier or scanner, the cover is freely openable to the upper side of the main body, A lower housing fixed to the upper end surface of the main body and having a first fitting hole through both sides of the upper end of the main body, and a second fitting hole through the upper side of the main body; A support block having a coupling hole coupled to the second fitting hole through the upper end of the lower housing and having a flat contact surface formed at the upper end thereof; The lower housing is introduced into the lower inner side and the first fastening hole for pin coupling with the first fitting hole of the lower housing is holed at both sides of the lower side, and the second fastening hole is holed at both sides of the upper side, and guide grooves are formed in the upper both sides. An upper housing in which support pieces are bent at both front sides; An upper / lower guide block inserted into the inner side of the upper housing and formed with a spring-mounted groove on one side facing each other; A spring having both sides mounted and fixed to a spring mounting groove formed at an opposite side of the upper / lower guide block; Located in the outer side of the upper housing is a pin coupling hole which is coupled to the second fastening hole and the pin coupled to the upper both sides of the upper housing are respectively penetrated at both ends and the fixing hole at both ends on each side of the pin coupling hole and the front both sides An auxiliary housing having an anchoring flange which is bent outwardly and fixed to one side of the cover; The fixing rod is fastened to the fixing hole of the auxiliary housing to prevent the guide block inserted into the upper housing from being detached and the guide groove of the upper housing is inserted and supported when the cover is folded inward while the cover is lifted up. Characterized in that made up.

A bushing for allowing easy rotation of the upper housing may be fitted between the first fitting hole of the lower housing and the first fastening hole of the upper housing that is pinned to the first fitting hole.

The cover opening and closing hinge device of the present invention configured as described above, the support block is inserted into the inner side of the lower housing fixed to the main body, the flat contact surface is formed on the upper surface of the support block, fixed to the cover The contact with the lower guide block interpolated inside the upper housing connected to the auxiliary housing is made in surface contact, so that the stress on the surface contact acts to increase the bearing capacity of the cover and the cover falls due to slip during use. In addition to being prevented in advance, the auxiliary housing is pin-coupled to the outside of the upper housing and the auxiliary housing is fixed to the cover, so that the cover can be easily folded to the inner side, that is, the side of the original on which the thick book is placed. By doing so, the support of the original is improved.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings, and the terminology or words used in the specification and claims are used to explain the invention in its best way. Based on the principle that the concept of can be properly defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Figure 2 is a perspective view showing a cover opening and closing hinge device of the present invention, Figure 3 is an exploded perspective view showing the configuration of the cover opening and closing hinge device of the present invention, Figure 4 is a cross-sectional view showing the configuration of the cover opening and closing hinge device of the present invention. 5 is a sectional view showing a state in which the cover is lifted by the cover opening and closing hinge device of the present invention, and FIG. 6 is a state in which the cover is folded inward in the state being lifted by the cover opening and closing hinge device of the present invention. The configuration cross section.

As shown in the present invention, the cover opening and closing hinge device of the present invention connects the cover 102 and the main body 101 which are configured on the upper part of the main body 101 of the copier or scanner, and the cover 102 is moved to the upper side of the main body. By freely opening and closing, the lower housing 10 is fastened and fixed to the upper end surface of the main body 101, and the first fitting hole 11 is penetrated at both sides of one upper end, and the second fitting hole 12 is penetrated at the upper inner side. ) And a coupling hole 21 coupled to the second fitting hole 12 through the upper end of the lower housing 10 by the pin P1, is holed in the center thereof, and a flat contact surface 22 is formed at the upper end thereof. The formed support block 20 and the lower housing 10 is introduced into the lower inner side and the first fastening hole hinged by the first fitting hole 11 and the pin P2 of the lower housing 10 ( 31) is holed on both sides of the lower end and the second fastening hole 32 on both sides of the upper end and the guide groove 33 concaved at both ends of the upper end Each of the upper housing 30 is formed in each of the front side and the support piece 34 is bent inwardly, and the spring mounting grooves 41 and 42 are inserted into the inner side of the upper housing 30 and face each other. Springs 50 having both sides fitted into and fixed to the formed upper / lower guide blocks 40a and 40b and spring mounting grooves 41 and 42 formed on opposite sides of the upper and lower guide blocks 40a and 40b. ) And a pin coupling hole 61 hinged by a second fastening hole 32 and a pin P3, which are positioned at an outer side of the upper housing 30 and are formed on both sides of an upper end of the upper housing 30. Fixing flanges 63 which are respectively perforated at both ends and fixed holes 62 at both ends at one end of the pin coupling hole 61 and are bent outward at both ends of the front side to be fastened and fixed at one side of the cover 102. A guide having a sub housing 60 and a guide fastened to the fixing hole 62 of the sub housing 60 and inserted into the upper housing 30. Fixing rod (40a, 40b) to prevent separation and the guide groove 33 of the upper housing 30 is inserted and supported when the cover 102 is folded inward while the cover is lifted ( 70).

Between the first fitting hole 11 of the lower housing 10 and the first fastening hole 31 of the upper housing 30 which is hinged to the first fitting hole 11 by a pin P2. The bushing 13 which allows easy hinge rotation of the upper housing 30 is further fitted and fixed.

The guide groove 33 formed in the upper side of the upper housing 30 has a recessed rod 70 fitted into the fixing hole 62 of the auxiliary housing 60 while the cover 102 is lifted up. The guide groove 33 is preferably formed to be inclined to one side in order to support the cover 102 by being drawn in and out of the fixing rod 70.

In addition, the flat contact surface 22 formed on the upper end of the support block 20 is in surface contact with the lower surface of the lower guide block 40b inserted into the upper housing 30, the support block The contact surface 22 of the 20 and the lower surface of the lower guide block 40b are inclined at a predetermined angle.

In addition, one side of the lower housing 10 is further provided with a separate hole 14 for enabling fastening of the lower housing 10 and the main body 101.

The spring 50 is compressed by the sliding of the upper guide block 40a when the cover is folded up or folded inward in the lifted state, and then the compression is released. By the compression force of the cover 102, as well as the solid support, the lifting or closing operation is made easy.

The hinge device for opening and closing the cover of the present invention configured as described above, the hole (14) through the one side of the lower housing 10 is fitted to the mounting projection (not shown) configured on the upper surface of the main body 101, the Located in the outer side of the upper housing 30, the auxiliary housing 60 hinged to the upper housing 30 is fixed to the inner surface of the cover 102 to be used.

Thus, the cover opening and closing hinge device of the present invention connected to the main body and the cover of the copier or scanner is opened by flipping the cover 102, and then placing a document such as a book on the top of the main body 101 and opening it again. In order to copy the original or scan the original by touching the cover 102, the cover 102 is lifted by the thickness of the original when the thickness of the original is thick, as shown in FIG. Even if 102 is lifted up, a lower guide block 40b interpolated inside the upper housing 30 and a spring 50 mounted therein and a pin inside the lower housing 10 fixed to the main body 101. The contact surface of the support block 20 which is in surface contact with the lower surface of the lower guide block 40b as the contact with the support block 20 coupled by (P1) is not a line contact, but a surface contact is made. Because frictional force with (22) works together For example, the contact force is strengthened by the stress due to the frictional force, and the cover 102 does not fall.

Therefore, the conventional cover opening and closing hinge device is reduced by the contact force of the cover by the line contact to prevent the phenomenon of the cover falling by the slip phenomenon, such as injury to the user or damage to the glass of the copier or scanner, etc. The problem is solved.

In addition, the present invention, the cover opening and closing hinge device as shown in Figure 6 the pin coupling hole 61 of the auxiliary housing 60 fixed by the cover 102 and the fixing flange 63 is the upper housing ( Since it is hinged by the second fastening hole 32 and the pin P3 of 30), it is possible to be folded to the inner side, that is, to the side where the original is placed in the state where the cover 102 is lifted, so that the supporting force of the thick original is increased. Because it is enhanced, users do not have to manually press thick originals for clear copying or scanning.

In the case of a conventional copier or scanner hinge opening and closing device, a separate interpolation groove is formed at the top of the main body so that the entire hinge device is slidable up and down in order to be foldable to one side while the cover is lifted up. Although the hinge device is interpolated in the interior of the present invention, the cover opening / closing hinge device of the present invention does not need to be interpolated into the main body by the auxiliary housing 60 hinged from the upper housing 30, and thus is easily installed and has a separate interpolation groove in the main body. It is not necessary to form

The present invention is a cover opening and closing hinge device can be variously modified in addition to those shown and described, all the embodiments modified without departing from the scope of the invention should be construed as being included in the scope of the invention.

As described above, according to the present invention, the cover opening / closing hinge device includes a support block inserted into an inner side of a lower housing fixed to a main body, and a flat contact surface is formed on an upper surface of the support block. The contact with the lower guide block inserted inside the upper housing connected to the fixed housing is a surface contact, the stress is applied by the friction between the surface and the surface is strengthened, the support force of the cover is strengthened, the slip phenomenon during use The fall of the cover can be prevented in advance, and as the auxiliary housing is pinned to the outside of the upper housing and the auxiliary housing is fixed to the cover, the original, that is, a thick book loaded with the cover raised, By folding easily to the side, the effect of improving the support of the original is expected.

Claims (2)

In the hinge device that connects the cover and the main body configured on the upper portion of the main body of the copier or scanner, the cover is freely openable to the upper side of the main body, The lower housing 10 is fastened and fixed to the upper end surface of the main body, and the first fitting hole 11 is holed on both sides of one upper end, and the second fitting hole 12 is holed on the inner side of the upper end; Supporting hole 21 is coupled to the second fitting hole (12) through the upper inside of the lower housing 10 by the pin (P1) through the central hole and the contact surface 22 of the plate-like form the upper end Block 20; The lower housing 10 is introduced into the lower inner side, and the first fastening hole 31 hinged by the first fitting hole 11 and the pin P2 of the lower housing 10 is perforated at both sides of the lower end, and the upper end thereof. The upper housing 30 having the second fastening holes 32 formed on both sides thereof and having guide grooves 33 recessed at both ends of the upper end thereof, and the support pieces 34 being bent inwardly on both front sides thereof; An upper / lower guide block (40a) (40b) in which a spring-mounted groove (41) (42) is recessed in one side of the upper housing (30) and interposed inside and facing each other; A spring 50 having both sides fitted into and fixed to spring mounting grooves 41 and 42 formed on opposite sides of the upper and lower guide blocks 40a and 40b; Located at the outer side of the upper housing 30, the second coupling hole 32 and the pin coupling hole 61 is hinged by the pin (P3) through the upper both sides of the upper housing 30 at both ends Auxiliary housing (60) having a fixing flange (63) which is each through hole and fixed holes (62) at both ends at one end of the pin coupling hole (61), respectively, is bent outwardly at both sides of the front side and is fastened and fixed at one side of the cover. )and; The guide blocks 40a and 40b which are fastened to the fixing holes 62 of the auxiliary housing 60 to be inserted into the upper housing 30 prevent the detachment and the cover is folded inward while the cover is lifted up. When the guide groove (33) of the upper housing (30) when the cover opening and closing hinge device, characterized in that it further comprises a fixed rod (70). The method of claim 1, Between the first fitting hole 11 of the lower housing 10 and the first fastening hole 31 of the upper housing 30 which is hinged to the first fitting hole 11 by a pin P2. Cover opening and closing hinge device, characterized in that the bushing (13) is further fitted and fixed to enable easy hinge rotation of the upper housing (30).

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