JP2010252115A - Slide mechanism and opening/closing type electronic apparatus with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To develop an opening/closing type electronic apparatus such as a cellular phone employing a slide mechanism to perform an opening operation with a little push stroke when opening the electronic apparatus. <P>SOLUTION: The opening/closing type electronic apparatus such as a cellular phone including a slide mechanism includes: a base plate provided with a plate-like surface; a slider including a plate-like surface overlapping the base plate slidably; and an energizing force generating means, for sliding the slider, interposed between the plate-like surface of the slider and the plate-like surface of the base plate. The energizing force generating means is comprised of an elastic means, an energizing force transfer lever and a cam engaging roller. In the slider, a cam groove is formed in a bent shape, and the cam engaging roller is engaged to the bent cam groove to freely slide. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention includes a slide mechanism that slides two members, which are laminated with plate-like surfaces facing each other so as to be slidable in a linear direction, and the lid body portion is linear with respect to the main body portion provided with the slide mechanism. In particular, the present invention relates to an open / close type electronic device such as a cellular phone that is slid to open and close, in particular, a slide mechanism that can be opened with a small push stroke when opened, and a lid body that includes the slide mechanism and that has a small push stroke when opened. The present invention relates to an openable electronic device such as a mobile phone that can be opened.

  Furthermore, the present invention provides a structurally thin slide mechanism by using a leaf spring as an elastic means, and an open / close type electronic device such as a cellular phone provided with the slide mechanism.

  For example, in a mobile phone, a main body having an operation key and a transmitter and a lid having a liquid crystal display screen and a receiver are provided. On the upper surface of a base plate provided on the main body, A mobile phone is known in which a slider is slid in a linear direction by overlapping the provided sliders and guiding the sliders slidably along a guide mechanism provided on a base plate. In a mobile phone having such a slide mechanism, an elastic means is interposed between the slider and the base plate. By this elastic means, the slider is held in the storage position, and when the slider is manually slid to a predetermined position against the urging force of the elastic means, the slider is opened by the elastic force of the elastic means when the predetermined position is exceeded. It is comprised so that it may be energized.

  Conventionally, it is known to use an elastic means for a mobile phone having this kind of slide mechanism. In Patent Document 1, Patent Document 2, etc., a coil spring is used, and in Patent Document 3, Patent Document 4, etc., a torsion spring is used. What was there is known. Further, as a resilient means of the slide cover that covers the lens of the camera incorporated in the mobile phone, one using a spring material is known. Patent Document 5 discloses a structure in which an arm portion of a torsion spring is bent in a wave shape. In Patent Document 6, an arm of a torsion spring is formed by forming the torsion spring into a W shape in a plan view. A structure in which the slide amount of the slide cover can be set larger than that of a linear structure is known.

JP 2005-124116 A JP 2006-81107 A Japanese Patent Laying-Open No. 2005-210649 JP 2006-270804 A JP 2005-311510 A JP 2006-50204 A

  By the way, since the elastic means used in the mobile phone provided with the slide mechanism is structurally provided between the base plate and the slider, it is desirable to make it as thin as possible. However, coil springs such as Patent Documents 1 and 2 not only make it difficult to make the coil portion thin, but also require clearance so that the coil portion does not contact the base plate and the slider. As a result, it becomes difficult to reduce the thickness of the mobile phone. On the other hand, as in Patent Documents 3 and 4, the torsion spring requires a thick wire diameter and a large number of windings of the spring part in order to generate a strong torque (spring pressure). The height of the spring portion is also required to some extent, which hinders the thinning of the slide mechanism. In addition, there remains a problem with the structure in which the arm portion of the torsion spring is bent into a wave shape as shown in Patent Document 5 or the structure in which the torsion spring is formed in a W shape in plan view as shown in Patent Document 6. . In other words, since the loop portion (spring portion) that is wound once is formed, the thickness (height) of the torsion spring is double the thickness of the linear or thin plate constituting the torsion spring material as a whole. However, there remains a problem to be solved in terms of thinning the slide mechanism. In particular, in recent mobile phones, the liquid crystal display screen provided in the lid portion tends to increase in size, and additional functions such as a camera function increase, so the weight of the lid portion also increases and the lid portion is attached. The elastic means to be biased is required to have a stronger spring biasing force, and is required to be thin.

  In order to solve the above problems, the present inventors can reduce the thickness of the slide mechanism as much as possible, and provide a plate spring, a slide mechanism, and its slide mechanism that can stably bias the slider with a strong force. For the purpose of providing a mobile phone provided, a Japanese Patent Application No. 2007-247246 (hereinafter referred to as a prior application invention) has been filed prior to the present invention.

  The present invention further improves the above-mentioned invention of the prior application in which the slide mechanism is made as thin as possible, and uses the slide mechanism that can be opened with a small pushing stroke when opened, and opens the lid portion with a small operation stroke. Thus, an openable mobile phone that can achieve a smooth opening and closing operation has been developed.

  As described above, the present inventors are able to open the lid body with a small operation stroke, and further, a slide mechanism and an open / close type capable of freely controlling the operation force to achieve a smooth opening / closing operation. It is intended to develop openable electronic devices such as mobile phones.

  In the present invention, the opening / closing operation and the opening / closing operation of an opening / closing electronic device such as a slide mechanism or a cellular phone are described using terms of “biasing force” and “operation force”. “Biasing force” means a force generated by an elastic means such as a spring or a force accumulated therein, and “operation force” means an open / close electronic device such as a slide mechanism or a mobile phone by an operator. Force required for the opening / closing operation of the device or force consumed by the automatic opening / closing operation of the opening / closing electronic device such as a slide mechanism or a cellular phone due to the force (biasing force) accumulated in the elastic means such as a spring (described later) 9 is expressed as a negative force).

  In the conventional slide mechanism of an open / close type electronic device such as an open / close type mobile phone, since the reversal of the spring force is used, the force provided as the open / close force is exclusively the force of the spring. In the case of obtaining, it is necessary to design a spring having a strong spring force, and in the case of obtaining a weak opening / closing force, it is necessary to design a spring having a weak spring force. On the other hand, in the present invention, by adopting a structure of a spring and a biasing force transmission lever in the slide mechanism, a relatively large cam engagement roller can be obtained even with a small amount of spring deflection due to the biasing force transmission lever ratio. Therefore, it is possible to achieve an open / close type electronic device such as an open / close type mobile phone having a smooth open / close operation. Furthermore, by changing the distance relationship between the fulcrum, force point, and action point of the urging force transmission lever, it is possible to obtain a configuration in which the slide mechanism can be freely designed according to the required opening / closing force.

  Furthermore, the present inventors achieved a smooth opening / closing operation and applied the above-mentioned prior invention to achieve a thin slide mechanism.

The slide mechanism according to claim 1 of the present invention is:
A base plate having a plate-like surface; a slider having a plate-like surface slidably superimposed on the base plate; and the slider between the plate-like surface of the slider and the plate-like surface of the base plate. And a biasing force generating means for sliding movement,
The biasing force generating means includes an elastic means, a biasing force transmission lever, and a cam engagement roller.
The urging force transmission lever has a fulcrum, a force point, and an action point. The urging force transmission lever is pivotally supported at a predetermined position of the base plate at the fulcrum, and receives the elastic pressing force of the elastic means at the force point. One end of the elastic means is locked, and at the point of action, the cam engaging roller is pivotally supported,
The slider is formed with a bent cam groove, and the cam engaging roller is slidably engaged with the bent cam groove.

The slide mechanism according to claim 2 of the present invention is:
A linear guide groove is formed on the slider so as to face the bent cam groove, and a side pressure support roller is rotatably supported at a predetermined position of the base plate.
The linear pressure guide roller is slidably engaged with the linear guide groove.

The slide mechanism according to claim 3 of the present invention is:
The elastic means is a plate spring that elastically expands and contracts in a plane, and the plate spring exhibits a continuous wavy serpentine shape that elastically expands and contracts in one direction in the plane.
The plate springs are provided with attachment portions at both ends thereof, and a plurality of vertical piece portions arranged in parallel in a direction intersecting the expansion / contraction direction between the attachment portions, and adjacent to each other. Turn portions that fold and continue each end of the two vertical piece portions are alternately formed, one end side of the attachment portion is pivotally supported at a predetermined position of the base plate, and the other end side of the attachment portion is The urging force transmission lever is supported by the force point.

The slide mechanism according to claim 4 of the present invention is:
The bent cam groove formed on the slider includes an inclined cam groove having at least one positive inclination in the sliding direction of the slider and an inclined cam groove having at least one negative inclination. It is characterized by that.

The slide mechanism according to claim 5 of the present invention is
The bent cam groove is formed with a curved cam groove in addition to the at least one positive inclined cam groove and the at least one negative inclined cam groove.

An open / close type electronic apparatus such as a mobile phone provided with the slide mechanism according to claim 6 of the present invention,
A base plate having a plate-like surface; a slider having a plate-like surface slidably superimposed on the base plate; and the slider between the plate-like surface of the slider and the plate-like surface of the base plate. And a biasing force generating means for sliding movement,
One of the base plate or the slider is attached to the main body of an openable electronic device such as a mobile phone, and the other is attached to the lid of the openable electronic device such as a mobile phone. A switch group is provided, and a display means such as a liquid crystal display is provided on the lid body. The main body and the lid body are held in a closed position when the slider is held in a contracted position, and Along with the sliding operation, the lid body is urged and slid in the opening direction and held in the open position,
The biasing force generating means includes an elastic means, a biasing force transmission lever, and a cam engagement roller.
The urging force transmission lever has a fulcrum, a force point, and an action point. The urging force transmission lever is pivotally supported at a predetermined position of the base plate at the fulcrum, and receives the elastic pressing force of the elastic means at the force point. One end of the elastic means is locked, and at the point of action, the cam engaging roller is pivotally supported,
The side pressure support roller is pivotally supported at a predetermined position of the base plate,
The slider is formed with a bent cam groove, and the cam engaging roller is slidably engaged with the bent cam groove.

An open / close type electronic apparatus such as a mobile phone provided with the slide mechanism according to claim 7 of the present invention,
A linear guide groove is formed on the slider so as to face the bent cam groove, and a side pressure support roller is rotatably supported at a predetermined position of the base plate.
The linear pressure guide roller is slidably engaged with the linear guide groove.

An open / close type electronic apparatus such as a mobile phone provided with the slide mechanism according to claim 8 of the present invention,
The elastic means is a plate spring that elastically expands and contracts in a plane, and the plate spring exhibits a continuous wavy serpentine shape that elastically expands and contracts in one direction in the plane.
The plate springs are provided with attachment portions at both ends thereof, and a plurality of vertical piece portions arranged in parallel in a direction intersecting the expansion / contraction direction between the attachment portions, and adjacent to each other. Turn portions that fold and continue each end of the two vertical piece portions are alternately formed, one end side of the attachment portion is pivotally supported at a predetermined position of the base plate, and the other end side of the attachment portion is The urging force transmission lever is supported by the force point.

An open / close type electronic apparatus such as a mobile phone provided with the slide mechanism according to claim 9 of the present invention,
The bent cam groove formed in the slider includes an inclined cam groove having at least one positive inclination in the sliding direction of the slider and an inclined cam groove having at least one negative inclination. A curved cam groove is formed at one end of the positive inclined cam groove or the negative inclined cam groove.

An open / close type electronic apparatus such as a mobile phone provided with the slide mechanism according to claim 10 of the present invention,
The bent cam groove is characterized in that a curved cam groove is formed in addition to the at least one positive inclined cam groove and the at least one negative inclined cam groove.

  According to the slide mechanism of the present invention and the opening / closing type electronic device such as a mobile phone provided with the slide mechanism, the biasing force generating means includes an elastic means, a biasing force transmission lever, and a cam engagement roller. It is possible to achieve a stable sliding movement. Furthermore, according to the slide mechanism of the present invention and the open / close type electronic device such as a mobile phone equipped with the slide mechanism, a smoother sliding motion can be achieved by providing the side pressure support roller opposite to the cam engagement roller. Is possible

  Furthermore, according to the slide mechanism of the present invention, since the elastic means used for the biasing force generating means is a plate spring that elastically expands and contracts in a plane, it is possible to reduce the thickness of the plate spring by reducing the thickness of the plate spring. The plate spring can be thinned and has a strong urging force.

  According to the slide mechanism of the present invention, the urging force transmission lever has a fulcrum, a force point, and an action point, and is fixed to a predetermined position of the base plate at the fulcrum, and receives the elastic pressing force of the elastic means at the force point. Since one end of the elastic means is locked and the cam engagement roller is pivotally supported at the action point, the urging force can be designed freely according to the positional relationship between the fulcrum, the force point, and the action point. Is possible.

  According to the slide mechanism of the present invention, the bent cam groove is formed in the slider, and the cam engaging roller is slidably engaged with the bent cam groove. Is also free.

  Furthermore, according to the slide mechanism of the present invention, the slider is formed with a linear guide groove facing the bent cam groove, and the side pressure support roller is slidably engaged with the linear guide groove. Therefore, as compared with the sliding guide using only the guide rail of the base plate, the side pressure at the time of sliding is supported by the linear guide groove and the side pressure supporting roller, and the movement becomes smoother.

  The best embodiment of the slide mechanism of the present invention and the open / close type electronic apparatus such as a cellular phone using the slide mechanism is as shown in the drawings. In particular, the details of the slide mechanism are as shown in FIGS. There will be described based on the first embodiment with reference to the drawings. In the following description, the openable electronic device such as a mobile phone will be described only for an openable mobile phone for easy understanding, but the present invention is not limited thereto.

  As shown in FIGS. 1 to 3, the cellular phone 1 of the present invention includes a main body 2 including an operation switch group 2A composed of a numeric keypad and various function keys, a display means 3A such as a liquid crystal display, and a display operation switch group 3B. Etc., and a lid body portion 3 provided with the like. The main body 2 and the lid 3 are slidably provided along the arrow S.

  The slide mechanism 100 used in the cellular phone 1 according to the present invention includes a base plate 4 and a slider 5. The base plate 4 is fixed to the main body 2 side, and the slider 5 constituting the slide mechanism is fixed to the lid 3 side. Yes. The entire assembly structure of the slide mechanism 100 is shown in FIG. The slider 5 is disposed so as to overlap the surface of the plate-like surface of the base plate 4, and the slider 5 is slidably attached along the longitudinal direction of the base plate 4 by a guide mechanism (described later) (FIGS. 2 and 3). ). This guide mechanism has a pair of left and right guide rails 6, 6 inserted into a bent portion that is bent in a horizontal U shape on both sides of the base plate 4, and left and right bent in an L shape formed on both sides of the slider 5. It is composed of a pair of bent pieces 7 and 7. The bent pieces 7 and 7 on both sides of the slider 5 are slidably guided in the guide rails 6 and 6 on both sides of the base plate 4.

  The urging force generating means 8 (FIG. 2) for relatively sliding the main body 2 (base plate 4) and the lid 3 (slider 5) along the arrow direction S includes a plate spring 10 and an urging force transmission lever 11. It consists of and. In the present invention, the biasing force generating means 8 is not limited to the plate spring 10 of the embodiment, but in the following description of the embodiment, a plate spring as illustrated will be described as a specific embodiment. Therefore, this does not mean that the present invention is limited to the leaf spring having such a configuration. In the present embodiment, the plate spring 10 and the urging force transmission lever 11 are disposed between the base plate 4 and the cover plate 9. The plate spring 10 is a plate spring that elastically expands and contracts in one direction in a plane (FIG. 4), and has substantially the same configuration as that described in the prior invention.

  The plate spring 10 is a plate spring that elastically expands and contracts in a plane that is integrally formed by punching a metal strip by pressing or the like. The plate-like spring 10 is formed by alternately folding a plurality of vertical piece portions 12, 12,... Arranged in a crossing direction with respect to the expansion / contraction direction and both end portions of the adjacent vertical piece portions 12, 12. It consists of turn parts 13, 13,... That are continuous, thereby exhibiting a wavy serpentine shape. The plate spring 10 is provided with attachment portions 14 and 15 at both ends, the attachment portion 14 on one end side is pivotally supported at a predetermined position 31 of the base plate 4, and the attachment portion 15 on the other end side is attached. It is supported by the force point 112 of the force transmission lever 11 (FIG. 2).

  The vertical pieces 12 of the plate spring 10 are formed to be folded back so as to be substantially parallel to each other at a relatively narrow pitch. A ring-shaped attachment portion 14 formed at the end of the vertical piece 12 located on the leftmost side (in FIG. 4) is pivotally supported by a boss portion 31 formed on the base plate 4. For this reason, when the turn part 13 contracts, the ring-shaped attachment part 14 and the vertical piece part 12 adjacent to the ring-shaped attachment part 14 come into contact with each other, and the contraction width of the turn part 13 becomes narrow. In order to prevent interference between the ring-shaped mounting portion 14 and the adjacent vertical piece 12, bent portions 16, 16... That bypass the rear-end collision with the ring-shaped mounting portion 14 are formed at the center of the vertical piece 12. ing. In this embodiment, the ring-shaped mounting portion 14 is provided only on one side (left side in FIG. 4) of the plate spring 10 and on the other end side (right side in FIG. 4), the force point of the urging force transmission lever 11 is applied. The joint portion 15 pivotally supported by the projection is projected outward (further to the right in FIG. 4). Thereby, it is not necessary to provide the bending part 16 for interference prevention in the joint part 15 side.

  In the present embodiment, the plate-like spring 10 is formed by stamping a metal strip by pressing or the like and is integrally formed, and is easy to form and can be formed extremely thin. 5 can be set as narrow as possible. Thereby, it can contribute also to thickness reduction of the mobile telephone 1. FIG. Further, the urging force of the slider 5 by the plate spring 10 can be appropriately designed according to the width m (FIG. 4) of the turn portion 13 and the number of turns.

  The urging force transmission lever 11 is supported at a fulcrum 111 at a predetermined position 32 of the base plate 4 so as to be swingable. The force point 112 of the urging force transmission lever 11 has a circular cut shape, and the joint portion 15 of the plate spring 10 is rotatably accommodated. A cam engagement roller 17 is rotatably attached to an action point 113 of the urging force transmission lever 11 via a roller shaft 17-1. The cam engagement roller 17 slides in a cam groove 22 formed in the slider 5. A side pressure support roller 18 is rotatably attached to a predetermined position 34 of the base plate 4 via a roller shaft 18-1. The side pressure support roller 18 slides in a linear guide groove 23 formed in the slider 5.

  In this embodiment, the side pressure support roller 18 and the linear guide groove 23 effectively receive the side pressure generated by the cam engagement roller 17 and perform sliding guide. However, in the embodiment of the present invention, a pair of left and right guide rails 6, 6 inserted in the bent portions that are bent in a lateral U shape on both sides of the base plate 4, and an L shape formed on both sides of the slider 5. A pair of left and right bent pieces 7, 7 that are bent into two forms a guide mechanism. Therefore, since the bent pieces 7 and 7 on both sides of the slider 5 are slidably guided in the guide rails 6 and 6 on both sides of the base plate 4, the side pressure support roller 18 and the linear guide groove 23 are necessarily required as an invention. It is not supposed to be.

  The urging force transmission lever 11 and the plate spring 10 are stably disposed on the slider 5 by the cover plate 9 in a state where both are combined. The cover plate 9 is fixedly attached to the slider 5 at predetermined positions 31, 32 and 33. The state where both the urging force transmission lever 11 and the plate spring 10 are assembled between the slider 5 and the cover plate 9 is shown in a sectional view in FIG. As a result, the urging force transmission lever 11 is rotatably supported around a predetermined position 32 (fulcrum 111), and the cam engagement roller 17 attached to the action point 113 is configured to be slidable within the cam groove 22. Is done. Since the plate-like spring 10 is supported by the ring-shaped mounting portion 14 at a predetermined position 31 and the joint portion 15 is accommodated in the power point 112 of the biasing force transmission lever 11, the leaf spring 10 expands and contracts by the swinging of the biasing force transmission lever 11. The urging force is accumulated in the plate spring 10.

  The base plate 4 and the slider 5 are respectively formed with rectangular openings 20 and 21. When the slider 5 is slid to the storage position and the open position, the openings 20 and 21 overlap each other. A common opening is formed. The common opening functions as an insertion portion through which a wiring member (not shown) routed through the main body 2 and the lid 3 is passed.

  The operation of the slide mechanism 100 configured as described above will be described with reference to FIGS.

  FIG. 5 shows a state where the slider 5 is at the start position with respect to the base plate 4. At this time, the relationship between the main body 2 and the lid 3 is in the initial state of the closed state, and the turn portion 13 of the plate spring 10 is bent by an appropriate amount from the extended state where no external force is applied. It is. Therefore, the urging force transmission lever 11 receives a slight urging force from the plate spring 10 with respect to the force point 112. The urging force transmission lever 11 is pivotally supported by a fulcrum 111, and the urging force acts on the force point 112, so that the cam engagement roller 17 supported on the application point 113 of the urging force transmission lever 11 is outside ( The closed state of the main body portion 2 and the lid portion 3 which are pressed to the right side in FIG. The cam engagement roller 17 is guided in a cam groove 22 formed in the slider 5, and is stable at the start end 221 of the cam groove 22. Thereby, the main-body part 2 and the cover body part 3 are hold | maintained in the accommodation state (CLOSE state).

  From this state, when the slider 5 (lid portion 3) is slid along the opening direction indicated by the arrow S in FIG. 5, the cam engagement roller 17 supported on the action point 113 of the urging force transmission lever 11 is The movement starts along the cam groove 22. The shape of the cam groove 22 includes an inclined cam groove 222 having a positive inclination in the sliding direction S of the slider 5 and an inclined cam groove 224 having a negative inclination. The positive / negative of the inclination of the positive inclined cam groove 222 and the negative inclined cam groove 224 is reversed depending on whether the moving direction of the slider 5 (lid body portion 3) is the opening direction or the closing direction in the arrow direction S. Is named by the function in the opening direction.

  The state between FIG. 5 and FIG. 6 is a state in which the operator continues to push the slider 5 (lid body portion 3) in the opening direction of the arrow direction S, and if the hand is released halfway, the slider 5 Returns to the original starting position, and the cam engaging roller 17 returns to the starting end 221 of the cam groove 22 and is stabilized. The restoring force of the slider 5 at this time is an elastic force accumulated as the leaf spring 10 contracts when the cam engagement roller 17 is moved against the positive inclined cam groove 222 of the cam groove 22.

  In the state of the slide mechanism 100 shown in FIG. 6, the cam engaging roller 17 reaches the terminal end of the positive inclined cam groove 222 of the cam groove 22, and reaches a critical point (reverse) This is the state located at point 223). The elastic force of the plate spring 10 is accumulated from the start end position of the base plate 4 (start end 221 of the cam groove 22) to the position where the plate spring 10 is most contracted (inversion point 223). A state where the cam engagement roller 17 is positioned at the reversal point 223 is a DEAD POINT state. In this state, the turn portion 13 of the plate spring 10 is in the most contracted state, and the maximum urging force is accumulated.

  When the slider 5 is slid to the open position beyond the state in which the turn portion 13 of the plate spring 10 is most contracted (FIG. 6), the cam engagement roller 17 supported by the urging force transmission lever 11 becomes the cam groove 22. The inversion point 223 is exceeded. Then, the cam engagement roller 17 slides down along the inclination of the negative inclined cam groove 224 of the cam groove 22 (FIG. 7). This is because the elastic restoring force that the turn portion 13 of the plate spring 10 tries to extend acts on the cam engagement roller 17 by releasing the elastic force accumulated in the plate spring 10. As a result, the cam engagement roller 17 is urged along the inclination of the negative inclined cam groove 224 of the cam groove 22, and the slider 5 (lid body portion 3) moves in the opening direction of the arrow direction S (intermediate transition state). ).

  Thus, when the cam engagement roller 17 of the urging force transmission lever 11 exceeds the reversal point 223 of the cam groove 22, the cam engagement roller 17 moves along the inclination of the negative inclined cam groove 224 of the cam groove 22. Slide down to the end 226 of 22 (FIG. 8). As a result, the slider 5 automatically slides relative to the base plate 4 and is held at the end position. The lid 3 in this state is held in the fully open position (OPEN state) and does not return to the original position unless it is pushed back against the elastic force of the plate spring 10.

  Here, it is possible to form the curved portion 225 immediately before the end 226 of the cam groove 22. Thereby, it is possible to freely adjust the operation immediately before the lid portion 3 reaches the fully open position (OPEN state). The shape of the curved portion 225 can be changed by a desired operation immediately before reaching the fully open position (OPEN state) of the lid 3.

  A simulation of operating force when the relationship between the slider 5 and the base plate 4 is changed from the CLOSE state (FIG. 5) to the DEAD POINT state (FIG. 6) to the intermediate transition state (FIG. 7) to the OPEN state (FIG. 8). 9 shows. In FIG. 9, (a) is a CLOSE state (FIG. 5), (b) is a DEAD POINT state (FIG. 6), (c) is an intermediate transition state (FIG. 7), and (d) is an OPEN state (FIG. 8). The operation power of

  Here, FIG. 9 will be described. FIG. 9 shows the relationship between the force required for the operator to open and close the slide mechanism or mobile phone (displayed as a positive force) and the stroke of the slide motion, and the force (biasing force) accumulated in the elastic means such as a spring. FIG. 6 is a diagram showing the relationship between the force consumed by the slide mechanism or the automatic opening / closing operation of the mobile phone (displayed as a negative force) and the stroke of the slide motion. Here, -Δ- indicates a transition state of the operation force in the opening operation (OPEN operation), and-◯-indicates a transition state of the operation force in the storage operation (CLOSE operation).

Now, let P be the force (biasing force) that the leaf spring 10 presses the cam engaging roller 17 at the tip of the urging force transmission lever 11 against the cam groove 22, and the angle formed by this urging force P and the vertical drag of the cam groove 22. Is an operating force F calculated from an angle formed by the urging force P and the vertical drag of the cam groove 22. Here, when the equation is taken into consideration without considering the frictional force, it can be roughly represented by the following equation (1).
F = P × tan θ (1)
Therefore, the operating force F is influenced by the inclination angle of the cam groove 22, and is between the load direction of the leaf spring 10 due to the rotation of the urging force transmission lever 11 around the fulcrum and the rotational tangential direction of the urging force transmission lever 11. It is also influenced by the angle. That is, when the rotation of the urging force transmission lever 11 is increased, the operation force is reduced accordingly.

  Here, the transition state of the operation force in the opening operation (OPEN operation) will be described. (A) In the state where the slider 5 is at the start position with respect to the base plate 4 (CLOSE state: FIG. 5), the operation force is applied. Of course, FORCE is in the zero position. However, since the turn portion 13 of the plate spring 10 is in a state where it is bent by an appropriate amount from the extended state where no external force is applied, the side pressure load is shown with a little force applied. Yes. This lateral pressure is not greatly changed by the sliding operation.

  When the slider 5 (lid body part 3) is slid along the opening direction of the arrow direction S of FIG. 5 from the state (a) of FIG. 9 to the state (b) of FIG. The cam engagement roller 17 supported by 113 climbs while rotating the positive inclined cam groove 222. At this time, a large operating force is required at once. When the operator continues the opening operation of the slider 5 (lid body 3), the rotation of the urging force transmission lever 11 increases, and the operation force decreases accordingly. FIG. 9 shows a situation in which the operating force decreases with an increase in STROKE with such a configuration. Furthermore, in the embodiment of FIG. 9, the angle of the inclined cam groove at the time of closing the CLOSE state is exemplified as 60 °, but due to the above equation (1), it is 50 ° and 40 °. The operation load can be reduced by laying down the inclination angle little by little.

  The state (b) in FIG. 9 is a reversal point (the stroke in this embodiment is 9 mm), and the automatic opening operation is achieved from the state (c) to the state (d). Here, the operating force up to the reversal point is displayed as a force pushing in the positive direction, but since the sliding motion is automatically achieved after reversal, the force to stop it is displayed as negative. The operating force at this time (the force that causes the slider 5 (lid body part 3) to slide due to the force accumulated in the leaf spring) is the cam groove shape (angle) according to the above equation (1). The biasing force transmission lever 11 can be controlled by the rotation angle. In the case shown in FIG. 9, in the intermediate transition state of the (c) state, control is once performed so that the operating force becomes small.

  The transition state of the operation force in the reverse -o-storage operation (CLOSE operation) is a line-symmetric state transition diagram. When the lid 3 is returned from the fully open position (OPEN state) to the housed state (CLOSE state) in the main body 2, the operation in the reverse procedure from FIG. 8 to FIG. 5 is performed. The operation is started by pushing back the lid 3 (slider 5) from the fully open position (OPEN) in the arrow direction S against the elastic force of the plate spring 10. Due to the displacement of the lid 3 (slider 5) in the closing direction, the cam engagement roller 17 is moved in the reverse direction along the inclination of the negative inclined cam groove 224 of the cam groove 22. In this case, the negative inclined cam groove 224 achieves a function as a positive inclined cam groove. When the position of the cam engagement roller 17 reaches the DEAD POINT position in FIG. 6 through FIGS. 8 to 7, the turn part 13 of the plate spring 10 is in the most contracted state (DEAD POINT state). Although the elastic restoring force (biasing force) of the plate spring 10 is the largest, it does not act as an operating force related to the opening / closing of the slider 5. When the cam engagement roller 17 exceeds the DEAD POINT position 223, the elastic restoring force of the plate spring 10 is released, and the slider 5 is again elastically restored by the plate spring 10 due to the displacement of the turn portion 13 to extend. Force acts. As a result, a biasing force in the storage direction is applied to the slider 5, and the cam engagement roller 17 is moved in the reverse direction along the inclination of the positive inclined cam groove 222 of the cam groove 22. It is held at the start position. By this operation, the lid part 3 (slider 5) is held in the housed state (CLOSE state) with respect to the main body part 2 (base plate 4).

  As described above, in the present embodiment, the lid 3 (slider 5) is either in the opening direction or the storage direction with respect to the main body 2 (base plate 4) at the DEAD POINT position 223 of the cam groove 22. It can also be biased in the direction. As a result, when the operator first presses the lid 3 (slider 5) for a while, the semi-automatic opening / closing operation can be performed. This is achieved by the cam engaging roller 17 sliding down the positive inclined cam groove 222 or the negative inclined cam groove 224 with the urging force of the plate spring 10 as a boundary at the DEAD POINT position 223 of the cam groove 22. The

  In this embodiment, when the slider 5 is slid to the storage position and the open position, the openings 20 and 21 formed in the base plate 4 and the slider 5 are overlapped with each other so that a common opening is formed. I have to. Thereby, since the wiring member (not shown) which electrically connects the main-body part 2 and the cover body part 3 can be passed through this common opening part, the wiring member routing operation is easy.

  Here, a second embodiment of the slide mechanism 150 different from the first embodiment will be described with reference to FIGS. The slide mechanism 150 includes a base plate 54 and a slider 55. The base plate 54 is fixed to the main body 2 side, and the slider 55 constituting the slide mechanism is fixed to the lid body 3 side. The slider 55 is disposed so as to overlap the surface of the plate-like surface of the base plate 54 and is slidably attached along the longitudinal direction of the base plate 54. The biasing force generating means for relatively sliding the main body 2 (base plate 54) and the lid 3 (slider 55) includes a plate spring 60 and a biasing force transmission lever 61. The plate spring 60 and the urging force transmission lever 61 are disposed between the base plate 54 and the slider 55. The plate spring 60 is a plate spring that elastically expands and contracts in one direction in the plane, and has substantially the same configuration as that described in the first embodiment.

  The urging force transmission lever 61 is supported by the slider 55 at a fulcrum 161 so as to be swingable. The force point 162 of the urging force transmission lever 61 has a circular cut shape, and the joint portion 65 of the plate spring 60 is rotatably accommodated. A cam engagement roller 67 is rotatably attached to the action point 163 of the urging force transmission lever 61. The cam engagement roller 67 slides in a cam groove 72 formed in the base plate 54. The cam groove 72 is formed by an opening having a substantially triangular shape formed in the base plate 54, and a bent cam groove 72 is formed by the cam lever 80 covering a part of the opening. The cam lever 80 is substantially L-shaped, and is pivotally supported by a pivot 81 at a corner portion thereof. One extension piece of the L-shaped cam lever 80 is provided with a positive inclined cam surface 82 and a negative inclined cam surface 83. As described above, the cam lever 80 covers a part of the substantially triangular opening, whereby the cam groove 72 including the positive inclined cam surface 82 and the negative inclined cam surface 83 is formed.

  A side pressure support roller 68 is rotatably attached to a predetermined position of the slider 55. The side pressure support roller 68 slides in a linear guide groove 73 formed in the base plate 54. The urging force transmission lever 61 and the plate spring 60 are stably disposed on the slider 55 in a state where both are combined. The urging force transmission lever 61 supported so as to be pivotable about the fulcrum 161 is given a counterclockwise turning force (FIG. 10) about the fulcrum 161 by the elastic force of the plate spring 60.

  The L-shaped cam lever 80 is rotationally excited clockwise in FIG. 10 (Q direction in FIG. 11) by the cam engagement roller 67, but by attaching a torsion spring (not shown) or the like around the pivot 81, In FIG. 10, the rotation excitation operation in the clockwise direction (Q direction in FIG. 11) is more reliably achieved. Accordingly, the cam lever 80 maintains the state shown in FIG. 10, and the cam engagement roller 67 of the urging force transmission lever 61 maintains a stable CLOSE state by the positive inclined cam surface 82 of the cam lever 80 (FIG. 10). . In the CLOSE state of FIG. 10, the L-shaped cam lever 80 is rotationally excited clockwise around the pivot 81, but is prevented from rotating by a convex piece 84 formed at the tip of the cam lever 80.

  This second embodiment provides a slide mechanism 150 that achieves an automatic opening operation, which is achieved by a cam lever 80 and an automatic opening operation lever 85. The automatic opening lever 85 is provided so as to be slidable with respect to the base plate 54 in a direction (right and left direction in FIG. 10) perpendicular to the opening and closing direction S, and is always outward (right direction in FIG. 10) by a spring 87. Has been excited. The automatic opening lever 85 is provided with guide rollers (not shown) inserted into guide grooves 89 and 90 formed in the base plate 54. This automatic opening operation lever 85 is provided with a convex piece 86 that is opposed to the convex piece 84 formed at the tip of the cam lever 80 when located in the outermost direction (right direction in FIG. 10). Is prevented from rotating, and the CLOSE state is maintained.

  The operation of automatically opening the slide mechanism 150 in the second embodiment will be described with reference to FIG.

  The automatic opening of the slide mechanism 150 is achieved by pushing the automatic opening operation lever 85 in the direction P (FIG. 11) against the spring 87. As shown in FIG. 11, when the automatic opening lever 85 is pushed in the direction P, the entire automatic opening lever 85 moves inward (leftward in FIG. 11), and the convex piece 84 of the cam lever 80 is automatically The abutting state of the opening operation lever 85 with the convex piece 86 is released, and the cam lever 80 is rotated clockwise about the pivot 81 (arrow Q in FIG. 11). As a result, one extension piece of the L-shaped cam lever 80 is retracted, and the entire substantially triangular opening formed in the base plate 54 appears, and the cam engagement roller 67 is disengaged from the positive inclined cam surface 82. As a result, the elastic force of the plate spring 60 that excites the urging force transmission lever 61 acts on the cam engagement roller 67 so that the cam engagement roller 67 slides down along the negative inclined cam surface 83. Become. At the same time, the lateral pressure support roller 68 rotatably attached to a predetermined position of the slider 55 slides in a linear guide groove 73 formed in the base plate 54. In this way, automatic opening of the slide mechanism 150 is achieved. In order to limit the rotation of the automatic opening lever 85 within a predetermined angle, stoppers 91 and 92 are formed in the respective directions of the base plate 54.

  In the slide mechanism 150 of the second embodiment, in order to return to the CLOSE state (FIG. 10) from the OPEN state (in FIG. 11, the cam engagement roller 67 slides down along the negative inclined cam surface 83), the main body portion 2 (base plate 54) is achieved by manually pushing the lid 3 (slider 55) in the closing direction indicated by the arrow S. When the cam engaging roller 67 moves in the reverse direction along the negative inclined cam surface 83 by the operation and exceeds the negative inclined cam surface 83, the cam engaging roller 67 rotates clockwise in FIG. 11 (Q direction) or rotation excitation of a torsion spring (not shown) rotates the cam lever 80 about the pivot 81 in the right direction. As a result, the automatic opening lever 85 moves to the right by the elastic force of the spring 87, and the butt state between the convex piece 84 of the cam lever 80 and the convex piece 86 of the automatic opening lever 85 is achieved. Thereby, the cam engagement roller 67 is stably maintained in the CLOSE state (FIG. 10) by the positive inclined cam surface 82 of the cam lever 80.

  The slide mechanism 150 of the second embodiment not only automatically achieves the opening operation, but can also cause a semi-automatic opening operation manually as in the first embodiment. FIG. 12 shows a state where the slider 55 is slightly pushed in the opening direction in the arrow direction S from FIG. 10 in the CLOSE state. This is the same state as the DEAD POINT state of FIG. 6 of the first embodiment. At this time, since the automatic opening lever 85 is positioned in the rightmost direction by the elastic force of the spring 87, the butt state between the convex piece 84 of the cam lever 80 and the convex piece 86 of the automatic opening lever 85 is maintained. Yes. Therefore, when the slider 55 is pushed in the opening direction of the arrow direction S, the cam engagement roller 67 moves along the positive inclined cam surface 82 of the cam lever 80 and rotates the urging force transmission lever 61 around the fulcrum 161. Move. As a result, the plate spring 60 is contracted and accumulates an urging force in the plate spring 60. When the slider 55 is slid to the open position beyond this state (FIG. 12), the cam engagement roller 67 supported by the urging force transmission lever 61 exceeds the positive inclined cam surface 82. Then, the cam engagement roller 67 slides down along the inclination of the negative inclined cam groove 83 (not shown). This is because the elastic restoring force that the turn portion of the plate spring 60 tries to extend acts on the cam engagement roller 67 by releasing the elastic force accumulated in the plate spring 60. Thereby, the cam engagement roller 67 is urged along the inclination of the negative inclined cam groove 83, and the slider 5 (lid body portion 3) moves in the opening direction of the arrow direction S.

  Next, a third embodiment of the slide mechanism 500 different from the above embodiments will be described with reference to FIGS.

  The slide mechanism 500 according to the third embodiment includes a base plate 540 and a slider 550. The base plate 540 is fixed to the main body 2 side, and the slider 550 constituting the slide mechanism is fixed to the lid 3 side. The slider 550 is disposed so as to overlap the surface of the plate-like surface of the base plate 540 and is slidably attached along the longitudinal direction of the base plate 540. The urging force generating means for relatively sliding the main body 2 (base plate 540) and the lid 3 (slider 550) includes a plate spring 560 and an urging force transmission lever 561. The plate spring 560 and the urging force transmission lever 561 are disposed between the base plate 540 and the slider 550. The plate spring 560 is a plate spring that elastically expands and contracts in one direction within the plane, and has substantially the same configuration as that described in the first and second embodiments.

  The urging force transmission lever 561 is supported at a fulcrum 511 at a predetermined position of the base plate 540 so as to be swingable. The force point 512 of the urging force transmission lever 561 has a circular cut shape, and the joint portion of the plate spring 560 is rotatably accommodated. A cam engagement roller 517 is rotatably attached to an action point 513 of the urging force transmission lever 561 via a roller shaft. The cam engagement roller 517 slides in a cam groove 522 having a plurality of bent portions formed on the slider 550. A side pressure support roller 518 is rotatably attached to a predetermined position of the base plate 540 via a roller shaft. The side pressure support roller 518 slides in a linear guide groove 523 formed in the slider 550.

  Also in the third embodiment, a pair of left and right guide rails (not numbered) inserted into the bent portions of the base plate 540 that are bent in a horizontal U shape, and an L shape formed on both sides of the slider 550. A guide mechanism is constituted by a pair of folded left and right bent pieces (no number). Therefore, since the bent pieces on both sides of the slider 550 are slidably guided in the guide rails on both sides of the base plate 540, the side pressure support roller 818 and the linear guide groove 523 are not essential for the invention. .

  The urging force transmission lever 561 and the plate spring 560 are stably disposed on the slider 550 by the cover plate 509 in a state where both are combined. Although the shape of the cover plate 509 is different from those of the first and second embodiments, the state in which the urging force transmission lever 561 and the plate spring 560 are incorporated between the slider 550 and the cover plate 9 is different. It only needs to be retained. Thus, the urging force transmission lever 561 is supported so as to be rotatable around a predetermined position (fulcrum 511), and the cam engagement roller 517 attached to the action point 513 is configured to be slidable within the cam groove 522. The The plate-shaped spring 560 is supported by the ring-shaped mounting portion 514 at a predetermined position, and the joint portion is accommodated in the power point 512 of the biasing force transmission lever 561. The biasing force is accumulated in the spring 560.

  The bent cam groove 522 of the third embodiment is formed from a plurality of bent portions. Specifically, the bent cam groove 522 of the third embodiment has two bent portions, and along the bent cam groove 522, from the top in the state shown in FIG. 1 positive inclined cam groove 531, first reversing point 532, first negative inclined cam groove 533, intermediate state position 534, second positive inclined cam groove 535, second reversing point 536, second The negative inclined cam groove 537, the deceleration cam groove 538, and the end portion 539 are configured. The expressions “start end”, “end end”, and “positive inclination” and “negative inclination” are used to move the main body 2 and the lid 3 in the retracted state (CLOSE state) to the fully open position (OPEN state). It has already been described that the reverse expression is given when the function is stored from the fully open position (OPEN state) to the stored state (CLOSE state).

  When the slider 550 (lid portion 3) is slid along the opening direction in the arrow direction S of FIG. 13 from the stored state (CLOSE state) (not shown), it is supported by the action point 513 of the urging force transmission lever 561. The cam engaging roller 517 that has started to move along the first positive inclined cam groove 531 from the start end portion 530. When the cam engagement roller 517 exceeds the first reversal point 532, it slides down along the first negative inclined cam groove 533 and temporarily stops at the intermediate state position 534. From this state, when the slider 550 (lid portion 3) is slid along the closing direction indicated by the arrow S in FIG. 13, the state returns to the storage state (CLOSE state).

  In order to open the slider 550 (lid portion 3), the cam engaging roller 517 is moved along the second positive inclined cam groove 535 by further operating from the intermediate state position 534, and the second reversal point. Slide over 536 along the second negative inclined cam groove 537. Accordingly, the cam engagement roller 517 is held in the fully open position (OPEN state) at the end portion 539 while changing to a slow operation in the deceleration cam groove 538.

  Thus, in the third embodiment, the bent cam groove 522 includes two bent portions, so that the cam engagement roller 517 is in a half-open state (HAFE OPEN state) at the intermediate state position 534 of the two bent portions. It stops once (state of FIG. 13). This state is a semi-closed state (HAFE CLOSE state) when shifting from the fully open position (OPEN state) to the retracted state (CLOSE state).

  In the third embodiment shown in FIG. 13, an example in which a half-closed state (HAFE CLOSE state) is achieved is shown. However, the configuration of the bent cam groove 522 that is substantially the same as that shown in FIG. It is also possible to adopt an embodiment in which an opening operation in the direction (upward opening operation and downward opening operation) is possible. That is, along the bent cam groove 522, in the state shown in FIG. 13, from the upper part, the upper open end part 530, the upper open negative inclined cam groove 531, the upper open reverse point 532, the upper open positive inclined cam groove. 533, a start end state position 534, a downwardly opened positive inclined cam groove 535, a downwardly opened reversal point 536, a downwardly opened negatively inclined cam groove 537, a downwardly opened deceleration cam groove 538, and a downwardly opened end portion 539. It is what.

  With such a configuration of the bent cam groove 522, the slider 550 (lid body portion 3) (the state shown in FIG. 13) at the start end position 534 is first opened upward by about 12 mm and opened downward by about 30 mm. It is possible to realize.

  In FIG. 13, as the third embodiment, an example in which one bent portion includes a plurality of positive inclined cam grooves and negative inclined cam grooves is shown, but the present invention is not limited thereto. . The shape of this cam groove can be designed very freely by the opening / closing operation to be achieved. Therefore, as a fourth example, FIGS. 14A, 14B, and 14C show a configuration of a cam groove of still another embodiment.

  The cam groove 622 shown in FIG. 14 (A) has a starting end 630, a first positive inclined cam groove 631, and a second positive inclined cam groove 632 (first positive cam groove 632) from above in the state shown in the figure. Slope> second positive slope), reversal point 633, first negative slope cam groove 634, second negative slope cam groove 635 (first negative slope> second negative slope), first 3 negative inclined cam grooves 636 (third negative inclination> first negative inclination> second negative inclination) and a terminal portion 637.

  In addition, the cam groove 622 shown in FIG. 14B has a start end 640, a first positive inclined cam groove 641, a second positive inclined cam groove 642 (first Positive slope> second positive slope), reversal point 643, long first negative slope cam groove 644, second negative slope cam groove 645 (first negative slope <second negative slope). ), The terminal portion 646.

  In addition, the cam groove 622 shown in FIG. 14C has a start end 650, a first positive inclined cam groove 651, a second positive inclined cam groove 652 (first Positive slope> second positive slope), reversal point 653, long negative slope cam groove 654, cam groove 655 without slope, second negative slope cam groove 656 (first negative slope <second Negative end slope) and a terminal end portion 657.

  As described above, the configuration of the cam groove 622 is such that the angle of inclination of the cam groove, the position of the reversal point of the positive / negative inclination, the presence / absence of the deceleration cam, and the intermediate state in the desired opening / closing operation of the bent portion It is possible to achieve a desired operation by selecting the presence or absence or the like.

  As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the above Example, A various deformation | transformation implementation is possible within the range which employ | adopts the technical idea of this invention. For example, the basic shape of the slider 5 and the base plate 4 and the configuration of the guide mechanism of the slider 5 and the base plate 4 are not limited to the above-described embodiments, and may be selected as appropriate. Further, the number and the overall shape of the turn portions 13 of the plate spring 10 are not limited to the above embodiment. Furthermore, in the above-described embodiment, the example in which the plate spring 10 is formed by punching a metal strip by pressing such as press working is shown. However, the plate spring 10 is formed by injection molding using a resin or the like or mechanical processing such as etching or laser processing. It may be formed.

It is a top view of the mobile telephone which shows one Example of this invention. It is a perspective view which shows the assembly | attachment state of the slide mechanism used for the mobile telephone of this invention. It is assembly sectional drawing of the slide mechanism used for the mobile telephone of this invention. It is a perspective view which shows the detailed structure of the leaf | plate spring of the slide mechanism of this invention. It is a perspective view which shows the state (the CLOSE state in the relationship between a body part and a cover part) of the slide mechanism of this invention in a start end position. It is a perspective view which shows the DEAD POINT state to which the slide mechanism of this invention contracted most. It is a perspective view which shows the state which has the slide mechanism of this invention in an intermediate transition state. It is a perspective view which shows the OPEN state which the slide mechanism of this invention extended most. It is a figure which shows the change of the operating force in each state of the slide mechanism of this invention. It is a perspective view which shows the slide mechanism of another Example of this invention. It is a perspective view which shows the automatic opening operation | movement of the slide mechanism of another Example of this invention. It is a perspective view which shows the semi-automatic opening operation | movement of the slide mechanism of another Example of this invention. It is a perspective view which shows the slide mechanism of another Example of this invention. (A) (B) (C) It is a top view which shows the structure of the cam groove of the slide mechanism of another Example of this invention.

DESCRIPTION OF SYMBOLS 1 Mobile phone 2 Main-body part 3 Cover part 4 Base plate 5 Slider 6 Guide rail (guide mechanism)
8 Biasing force generating means 9 Cover plate 10 Plate spring (elastic means)
DESCRIPTION OF SYMBOLS 11 Energizing force transmission lever 17 Cam engaging roller 18 Side pressure support roller 22 Cam groove 23 Linear guide groove 100 Slide mechanism 222 Positive inclination cam groove 224 Negative inclination cam groove

Claims (10)

A base plate having a plate-like surface; a slider having a plate-like surface slidably superimposed on the base plate; and the slider between the plate-like surface of the slider and the plate-like surface of the base plate. And a biasing force generating means for sliding movement,
The biasing force generating means includes an elastic means, a biasing force transmission lever, and a cam engagement roller.
The urging force transmission lever has a fulcrum, a force point, and an action point. The urging force transmission lever is pivotally supported at a predetermined position of the base plate at the fulcrum, and receives the elastic pressing force of the elastic means at the force point. One end of the elastic means is locked, and at the point of action, the cam engaging roller is pivotally supported,
The slide mechanism is characterized in that a bent cam groove (bent cam groove) is formed in the slider, and the cam engaging roller is slidably engaged with the bent cam groove. A linear guide groove is formed on the slider so as to face the bent cam groove, and a side pressure support roller is rotatably supported at a predetermined position of the base plate.
The slide mechanism according to claim 1, wherein the lateral pressure support roller is slidably engaged with the linear guide groove. The elastic means is a plate spring that elastically expands and contracts in a plane, and the plate spring exhibits a continuous wavy serpentine shape that elastically expands and contracts in one direction in the plane.
The plate springs are provided with attachment portions at both ends thereof, and a plurality of vertical piece portions arranged in parallel in a direction intersecting the expansion / contraction direction between the attachment portions, and adjacent to each other. Turn portions that fold and continue each end of the two vertical piece portions are alternately formed, one end side of the attachment portion is pivotally supported at a predetermined position of the base plate, and the other end side of the attachment portion is The slide mechanism according to claim 1, wherein the slide mechanism is supported by the force point of the urging force transmission lever.   The bent cam groove formed on the slider includes an inclined cam groove having at least one positive inclination in the sliding direction of the slider and an inclined cam groove having at least one negative inclination. The slide mechanism according to claim 1, wherein:   The slide mechanism according to claim 4, wherein the bent cam groove is formed with a curved cam groove in addition to the at least one positive inclined cam groove and the at least one negative inclined cam groove. A base plate having a plate-like surface; a slider having a plate-like surface slidably superimposed on the base plate; and the slider between the plate-like surface of the slider and the plate-like surface of the base plate. And a biasing force generating means for sliding movement,
One of the base plate or the slider is attached to the main body of the openable electronic device, and the other is attached to the lid of the openable electronic device. The main body is provided with a group of operation switches such as a numeric keypad. The unit is provided with display means such as a liquid crystal display, and the main body and the lid are held in the closed position when the slider is held in the contracted position, and the lid is moved along with the sliding operation of the slider. The body is slid and biased in the opening direction and held in the open position,
The biasing force generating means includes an elastic means, a biasing force transmission lever, and a cam engagement roller.
The urging force transmission lever has a fulcrum, a force point, and an action point. The urging force transmission lever is pivotally supported at a predetermined position of the base plate at the fulcrum, and receives the elastic pressing force of the elastic means at the force point. One end of the elastic means is locked, and at the point of action, the cam engaging roller is pivotally supported,
The slider is formed with a bent cam groove (bent cam groove), and the cam engaging roller is slidably engaged with the bent cam groove. Openable electronic equipment provided. A linear guide groove is formed on the slider so as to face the bent cam groove, and a side pressure support roller is rotatably supported at a predetermined position of the base plate.
7. The openable electronic device having a slide mechanism according to claim 6, wherein the lateral pressure support roller is slidably engaged with the linear guide groove. The elastic means is a plate spring that elastically expands and contracts in a plane, and the plate spring exhibits a continuous wavy serpentine shape that elastically expands and contracts in one direction in the plane.
The plate springs are provided with attachment portions at both ends thereof, and a plurality of vertical piece portions arranged in parallel in a direction intersecting the expansion / contraction direction between the attachment portions, and adjacent to each other. Turn portions that fold and continue each end of the two vertical piece portions are alternately formed, one end side of the attachment portion is pivotally supported at a predetermined position of the base plate, and the other end side of the attachment portion is 5. The openable electronic device having a slide mechanism according to claim 4, wherein the electronic device is supported by the force point of the urging force transmission lever.   The bent cam groove formed in the slider includes an inclined cam groove having at least one positive inclination in the sliding direction of the slider and an inclined cam groove having at least one negative inclination. An openable electronic device comprising the slide mechanism according to claim 6.   10. The slide mechanism according to claim 9, wherein the bent cam groove is formed with a curved cam groove in addition to the at least one positive inclined cam groove and the at least one negative inclined cam groove. Openable electronic device.

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