JP3697339B2 - Hinge device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge device suitable for use in small electronic devices such as portable telephones, portable computers, and electronic notebooks.
[0002]
[Prior art]
Conventionally, this type of hinge device is referred to as a tilt hinge, and various types of structures in which various cams and springs are combined are known. However, there is a problem that the structure is too complicated and the production cost is high. In recent years, the industrial world has been exposed to rough waves of cost reduction, and there is a severe demand for downsizing and cost reduction in the technical field of this kind of electronic equipment.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide a hinge device that can answer the technical demands of the above-described hinge device, and that is small in size, simple in structure, and inexpensive to manufacture.
[0004]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention has a deformed shaft portion on one side from the central portion and a large-diameter circular shaft portion on the other side, and is locked to one end of the deformed shaft portion. An engagement groove for attaching the ring is provided, and a shaft formed by attaching a fixing screw to the end of the circular shaft portion, and a lock ring locked to the end of the deformed shaft portion of the shaft are accommodated inside. A fixed member with a detent that is locked by being stopped and can rotate together with the rotating shaft, and the rotating shaft can be rotated at the center portion thereof via a friction plate on the flange portion side on the deformed shaft portion side of the rotating shaft. A fixed cam member with a detent that is inserted into and locked to, and a sliding cam member that is opposed to the fixed cam member, engages with the deformed shaft portion of the shaft, and is slidably mounted in the axial direction; Between the sliding cam member and the fixed member, A compression spring that is wound around and rotated around a foot, and a protective cylinder is fitted to the outer periphery of the sliding cam member and the compression spring, and a cam portion is provided on one side of the fixed cam member, The sliding cam member is provided with a plurality of convex portions that come into pressure contact with the cam portion, and the shaft is fixed by the fixing screw so as not to come off to one side of the opening / closing body.
[0005]
The present invention is also characterized in that the protective cylinder is supported between the fixed member and the fixed cam member by inserting each part of the fixed member and the fixed cam member from both ends thereof. And
[0006]
The present invention is also a hinge device for connecting a transmitter and a receiver of a portable telephone to each other, wherein an axial direction of a mounting portion provided at one end of the transmitter or receiver A shaft in which a fixing member with a rotation stopper that is fixedly mounted in a receiving hole provided in the one end is locked to one end portion, and the shaft is rotatably inserted into an insertion hole provided in the central portion axial direction. Fixing with a detent that is locked to the center of the shaft and that is fixed in a receiving hole provided in the axial direction of the mounting portion on the side of the transmitter or receiver that does not fix the fixing member of the transmitter or receiver A cam member, a sliding cam member which is provided between the fixed cam member and the fixed member and engages with the shaft inserted through the central portion thereof and rotates together with the shaft but is slidable in the axial direction; A ring is attached to the shaft between the sliding cam member and the fixed member. The fixed cam member is provided with a cam portion on one side thereof, the sliding cam member is provided with a convex portion that is in pressure contact with the cam portion, and the shaft is It is fixed by a fixing screw so as not to come out of one of the transmitter and the receiver.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show an embodiment of the present invention. In FIGS. 1 to 4, reference numeral 1 denotes a shaft. The shaft 1 is provided with a small-diameter shaft portion 2 on one side from the central portion and a large-diameter shaft portion 3 on the other side, and the cross-section of the small-diameter shaft portion 2 is substantially elliptical on one side. A deformed shaft portion 2a having a shape is provided, and an end portion thereof is provided with a circumferential groove 2b into which a locking ring described later is fitted. The small-diameter shaft portion 2 has a circular shaft portion 2c having a circular cross section, but all may be a deformed shaft portion. The large diameter shaft portion 3 is provided with a female screw 3a in the axial direction of the end portion. Reference numeral 5 denotes a fixing means comprising a fixing screw to be screwed onto the female screw 3a. Reference numeral 6 denotes a fixing member. This fixing member 6 has a stepped hole 7 including a circular hole 7a for attaching a locking ring and an elliptical deformation hole 7b in the axial direction of the central portion thereof, and the outer periphery is formed in a polygonal shape. A plurality of detents 6a, 6a,... Are provided, the deformation shaft portion 2a of the shaft 1 is inserted and locked into the deformation hole 7b, and the locking ring 8 fitted in the circumferential groove 2b is provided inside the stepped hole 7. The shaft 1 is locked so that the shaft 1 does not come out and rotates together with the shaft 1. The fixed cam member 10 is engaged with the circular shaft portion 2c of the small-diameter shaft portion 2 of the shaft 1 while the circular shaft portion 2c is rotatably inserted into a circular hole 10a provided in the center portion thereof. Between the fixed cam member 10 and the end surface of the large-diameter shaft portion 3, a friction plate 11 made of synthetic resin such as nylon is interposed while the circular shaft portion 2c is inserted into a circular hole 11a provided in the center portion thereof. ing. The fixed cam member 10 is further provided with a plurality of polygonal detents 10b, 10b,... On its outer periphery, and a pair of convex portions 10c, 10c on one side surface. The deformation shaft portion 2a is inserted between the fixed cam member 10 and the fixed member 6 through a deformation insertion hole 12a provided in the central portion axial direction, and the sliding cam member 12 slides in the axial direction of the deformation shaft portion 2a. The shaft 1 is attached so as to be movable and rotatable with the shaft 1. On the side surface of the sliding cam member 12 facing the convex portions 10c, 10c of the fixed cam member 10, a cam portion 9 comprising a plurality of concave portions 9a, 9a and convex portions 9b, 9b is provided. And, between this sliding cam member 12 and the fixed member 6, a compression spring 13 is elastically wound around the shaft 1, and the sliding cam member 12 is always pressed toward the fixed cam portion member 10, The cam portion 9 is pressed against the convex portions 10c and 10c.
[0008]
A protective cylinder 17 for preventing the oil applied to the inside from oozing out is fitted on the outside of the sliding cam member 12 and the compression spring 13, and the protective cylinder 17 has both end portions thereof. The fixed member 7 and the fixed cam member 10 are inserted into the support member 7 so as to be supported between the fixed member 7 and the fixed cam member 10.
[0009]
4 to 6 show a case where the hinge device according to the present invention is used in a portable telephone. Only one hinge device A according to the present invention is used, and is provided at attachment portions 15a, 15a, and 16a provided at the ends of the transmitting portion 15 and the receiving portion 16 of the portable telephone 14 that is an example of an opening / closing body. The deformed mounting hole 15b, the mounting hole 15c, and the deformed mounting hole 16b are housed and fixed. For example, the hinge device A is inserted from the deformation mounting hole 15b side with the large-diameter shaft portion 3 side first, and the detents 10b and 6a of the fixed cam member 10 and the fixing member 6 are engaged and fixed to the mounting holes 15b and 16b. The end of the large-diameter shaft portion 3 of the shaft 1 is attached to the attachment wall 15d provided in the attachment hole 15c of the other attachment portion 15a by using the fixing means 5 including a fixing screw. The feature of this hinge device A is that it is not provided with a pair of left and right like many of this type of hinge mechanism, but a single penetrating type is sufficient. When the receiver 16 is opened and closed with respect to the transmitter 15 , the receiver 16 rotates with the fixed cam member 10 around the shaft 1 together with the mounting portion 16a. However, opening and closing of the transmitter 15 and the receiver 16 are relative, and the transmitter 15 may be opened and closed with respect to the receiver 16. In this case, the fixing member 6 rotates together with the shaft 1 via the attachment portion 16a that is locked and fixed thereto.
[0010]
5 and FIG. 7, when the receiving portion 16 is closed with respect to the transmitting portion 15 at 0 °, the convex portions 10 c and 10 c of the fixed cam member 10 are formed on the cam portion 9 of the sliding cam member 12. It exists in the position in the recessed part 9a. In this 0 ° state, the convex portions 10c, 10c fall into the concave portions 9a, 9a and are locked and do not open naturally. When the receiving portion 16 is opened, the convex portions 10c and 10c of the fixed cam member 10 move from the concave portions 9a and 9a of the cam portion 9 of the sliding cam member 12 to the convex portions 9b and 9b, so that the opening angle is about 160 °. Then, it automatically opens by dropping into the recess 9a again. At this time, the convex portions 10c, 10c are completely lowered into the concave portions 9a, 9a and locked. And if it exceeds 160 degrees, convex part 10c, 10c will remove | deviate concave part 9a, 9a again, it will move on convex part 9b, 9b, and it will become possible to open further. When the receiving unit 16 is closed with respect to the transmitting unit 15 after the use is finished, the convex portions 10c and 10c are automatically closed so as to be sucked by dropping into the concave portions 9a and 9a. The state is maintained as described above.
[0011]
In addition, the control by the hinge device A according to the present invention at the time of opening / closing operation of the receiving part 16 can be made various variations by changing the shape of the cam part and the convex part, the installation position, etc. in addition to the above-described ones. Can do. Accordingly, the hinge device according to the present invention can be used as a hinge device for opening / closing an opening / closing body such as a display body of another small electronic device.
[0012]
In addition, as other embodiment, there is no limitation in the fixing means which fixes a fixing member and a fixed cam member to the attachment part, respectively. The fixing member and the fixing cam member may be fixed to the mounting portion by a locking projection, a fixing pin or other means. Further, the member provided with the convex portions 10c, 10c and the cam portion 9 may be reversed from that of the above-described embodiment. The shape and installation position of the convex part and the concave part can be variously changed depending on the application. Further, the fixing means including the fixing screw can be replaced by known means such as an E-ring, a locking ring, or the like.
[0013]
【The invention's effect】
Since the present invention is configured as described above, it is small, has a small number of parts, and has a simple structure, so that the manufacturing cost can be greatly reduced. It is possible to lock both parts stably in the closed state, and to stop both of them at a free stop, and to stably stop at the most frequently used opening angle. As a result, it is possible to perform a required function as a hinge device for a portable telephone. In addition, the shaft of the hinge device according to the present invention is a single shaft that is passed to the left and right with respect to the mounting portion of the transmitter and receiver, so that the structure is simplified and the strength is increased. The flexible wiring for connecting the transmitter to the receiver can be facilitated, and the design selection range of the connecting portion between the transmitter and receiver can be increased.
[0014]
Even if the hinge device according to the present invention is used for opening and closing a display body of a small electronic device other than a portable telephone, the shape of the convex portion provided on the cam member and the sliding cam member, the cam portion, and the installation position can be changed. Therefore, the required function can be provided at a low cost.
[Brief description of the drawings]
FIG. 1 is a front view of a hinge device according to the present invention.
FIG. 2 is a right side view of the hinge device shown in FIG.
FIG. 3 is an exploded perspective view of the hinge device shown in FIG. 1;
FIG. 4 is a partially exploded perspective view of a portable telephone in which the hinge device according to the present invention is implemented.
FIG. 5 is a side view of the mobile phone shown in FIG. 4;
6 is an enlarged cross-sectional view of a hinge device portion of the portable telephone device shown in FIG.
FIG. 7 is an enlarged cross-sectional view corresponding to the enlarged cross-sectional view shown in FIG. 6 and illustrating the operation thereof.
[Explanation of symbols]
A Hinge device 1 Shaft 2 Small-diameter shaft 3 Large-diameter shaft 4 Locking ring 5 Fixing means (fixing screw)
DESCRIPTION OF SYMBOLS 6 Fixed member 6a Non-rotating 9 Cam part 10 Fixed cam member 10b Non-rotating 10c Convex part 11 Friction plate 12 Sliding cam member 13 Compression spring 14 Mobile phone 15 Transmitting part 16 Receiving part 17 Protection cylinder

Claims (3)

A deforming shaft portion is provided on one side of the center portion, and a large-diameter circular shaft portion is provided on the other side portion. An engaging groove for attaching a locking ring is provided on one end portion of the deforming shaft portion. The shaft is formed by attaching a fixing screw to the end of the shaft, and the locking ring locked to the end of the deformed shaft portion of the shaft is locked by being housed and locked, and rotates together with the rotating shaft. A fixing member with a detent that can be rotated, and a detent with a detent that is inserted into the central portion of the rotating shaft through a friction plate to the deformed shaft portion side of the rotating shaft so as to be rotatable and locked. A fixed cam member, a sliding cam member opposed to the fixed cam member and engaged with the deformed shaft portion of the shaft so as to be slidable in the axial direction; and between the sliding cam member and the fixed member Compressed around the shaft A protection cylinder is fitted on the outer periphery of the sliding cam member and the compression spring, the cam portion is provided on one side of the fixed cam member, and the cam portion is provided on the sliding cam member. The hinge device is characterized in that a plurality of convex portions are provided in pressure contact with each other, and the shaft is fixed by the fixing screw so as not to come off to one side of the opening / closing body. The said protection cylinder is supported between the said fixed member and the said fixed cam member by inserting each part of the said fixed member and the said fixed cam member from the both ends. 2. The hinge device according to 1.   A hinge device for connecting a transmitter part and a receiver part of a portable telephone to each other, wherein the receiver is provided in the axial direction of a mounting part provided at one end of the transmitter part or the receiver part. A shaft in which a fixing member with a rotation stopper that is fixed in a hole is locked to one end, and the shaft is rotatably inserted into an insertion hole provided in the axial direction of the central portion of the shaft. A fixed cam member with a detent that is locked and fixed in a receiving hole provided in the axial direction of the mounting portion on the side of the mounting portion on the side that is not fixed to the fixing portion of the transmitting portion or the receiving portion. A sliding cam member which is provided between the fixed cam member and the fixed member and engages with the shaft inserted through the center thereof and rotates together with the shaft but is slidable in the axial direction, and the sliding cam member Between the fixed member and the fixing member The fixed cam member is provided with a cam portion on one side thereof, the sliding cam member is provided with a convex portion that press-contacts the cam portion, and the shaft is fed by a fixing screw. A hinge device, wherein the hinge device is fixed so as not to come out of one of the talking unit and the receiving unit.

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