JP4688943B2 - Slide mechanism - Google Patents

Description

  The present invention relates to a slide mechanism, and more particularly to a slide mechanism in which a slide side plate slides on a base side plate.

  For example, a mobile phone having a configuration in which a second housing in which a liquid crystal display device or the like is disposed is slidable with respect to a first housing in which a numeric keypad or the like is disposed is provided. In this type of mobile phone, a sliding mechanism is provided in order to allow the casing to slide. As this type of slide mechanism, for example, a mechanism disclosed in Patent Document 1 is known.

  The slide mechanism disclosed in Patent Document 1 is configured to include a base member, a slider, and a torsion spring. The slider is configured to be movable with respect to the base member, and the torsion spring is provided between the base member and the slider.

  The torsion spring is configured to rotate and move on the base member while accumulating elastic force as the slider moves, and to move and urge the slider by the accumulated elastic force when the predetermined position is exceeded. . Thereby, after the predetermined position, the slider is assisted by the elastic force of the torsion spring, so that the slider can be automatically moved.

Japanese Patent Laying-Open No. 2005-210649 JP 2005-135417 A JP 2003-110675 A JP 2003-234809 A

  However, the above-described conventional slide mechanism has a configuration in which the torsion spring largely rotates on the base member as the slider moves, and therefore it is necessary to provide a moving region in which the torsion spring moves in the slide mechanism. For this reason, this slide mechanism has a problem that other parts or the like cannot be disposed in the moving region of the torsion spring, and the slide mechanism becomes large.

  The present invention has been made in view of the above points, and it is an object of the present invention to provide a slide mechanism capable of reducing the size of a mounted device / equipment.

From the first point of view, the above problem is
A base side plate;
A slide side plate that slides on the base side plate;
A pair of mounting pins spaced apart on either the base side plate or the slide side plate;
Both ends are fixed to the mounting pin, and a wire made of a spring material disposed so that a bent portion formed in a mountain shape between the both ends protrudes toward the outside of the base side plate;
From the base side plate or the slide side plate, the wire is deformed and energized as the slide side plate slides by engaging with the wire, and the deformed wire A roller to which a restoring force is applied,
The problem can be solved by a slide mechanism characterized in that the end of the wire is fixed by being wound around the mounting pin from the inside to the outside.

  According to the disclosed slide mechanism, even if it is arranged so as to be convex toward the outside of the wire, the end of the wire is wound around the mounting pin from the inside to the outside and is fixed. The slide mechanism can be reduced in size as compared with the configuration in which the end portion is wound around the mounting pin from the outside to the inside.

FIG. 1 is a plan view and a front view of a slide mechanism according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the slide mechanism according to the first embodiment of the present invention. FIG. 3 is an enlarged view of a portion indicated by an arrow B in FIG. FIG. 4 is a diagram for explaining the operation of the slide mechanism according to the first embodiment of the present invention, and is a perspective view showing a state in which the slide side plate is located at the end portion in the X1 direction. FIG. 5 is a view for explaining the operation of the slide mechanism according to the first embodiment of the present invention, and is a plan view showing a state where the roller has moved to a position near the bent portion of the wire. FIG. 6 is a diagram for explaining the operation of the slide mechanism according to the first embodiment of the present invention, and is a perspective view showing a state where the roller has moved to a position near the bent portion of the wire. FIG. 7 is a view for explaining the operation of the slide mechanism according to the first embodiment of the present invention, and is a plan view showing a state in which the slide side plate is positioned at the end portion in the X2 direction. FIG. 8 is a view for explaining the operation of the slide mechanism according to the first embodiment of the present invention, and is a perspective view showing a state in which the slide side plate is positioned at the end portion in the X2 direction. FIG. 9 is a plan view for explaining a modification of the first embodiment of the present invention. FIG. 10 is a plan view and a front view of a slide mechanism according to the second embodiment of the present invention. FIG. 11 is an exploded perspective view of the slide mechanism according to the second embodiment of the present invention. FIG. 12 is an enlarged view of a portion indicated by an arrow B in FIG. FIG. 13 is a view for explaining the operation of the slide mechanism according to the second embodiment of the present invention. FIG. 14 is a view for explaining the operation of the slide mechanism according to the second embodiment of the present invention, and is a perspective view showing a state in which the slide side plate is located at the end portion in the X1 direction. FIG. 15 is a view for explaining the operation of the slide mechanism according to the second embodiment of the present invention, and is a perspective view showing a state in which the roller has moved to a position near the bent portion of the wire. FIG. 16 is a diagram for explaining the operation of the slide mechanism according to the second embodiment of the present invention, and is a perspective view showing a state in which the slide side plate has moved a predetermined distance to the end portion in the X2 direction. FIG. 17 is a diagram for explaining the effect of the second embodiment of the present invention. FIG. 18 is a plan view for explaining a modification of the second embodiment of the present invention.

  Next, embodiments of the present invention will be described with reference to the drawings.

  1 to 3 show a slide mechanism 30A according to the first embodiment of the present invention. 1 is a plan view and a front view of the slide mechanism 30A, FIG. 2 is an exploded perspective view of the slide mechanism 30A, and FIG. 3 is an enlarged view of the region indicated by the arrow B in FIG. It is.

  The slide mechanism 30A is roughly composed of a base side plate 31, a slide side plate 32, wires 33 and 34, rollers 35 and 36, guides 37 and 38, and the like.

  The base side plate 31 is formed by pressing a metal plate material (for example, stainless steel) and has a substantially rectangular shape in plan view. The base side plate 31 has bent portions 41 and 42 formed on both side portions on the long side of the bottom plate portion 39 (detailed in FIGS. 2 and 3).

  The bent portions 41 and 42 are formed in a substantially U-shape when viewed from the front. The bent portions 41 and 42 are partially formed with notches 45 and 46 in the longitudinal direction. Further, guides 37 and 38 are disposed in the bent portions 41 and 42, as will be described later. Further, an opening 40 is formed at a substantially central position of the bottom plate portion 39. As shown in FIG. 2, a flexible wiring board (hereinafter referred to as FPC) 60 is attached to the opening 40.

  The slide side plate 32 has a configuration in which edge portions 50 and 51 are formed on both sides of the base portion 49 by pressing a metal plate material (for example, stainless steel). The edge portions 50 and 51 are provided so as to form a slight step on both side portions of the base portion 49.

  Further, the edge portion 50 is in sliding contact with the guide 37 disposed in the bending portion 41 described above, and the edge portion 51 is in sliding contact with the guide 38 disposed in the bending portion 42 described above. As a result, the slide side plate 32 is guided by the guides 37 and 38 and can slide in the directions of arrows X1 and X2 in the figure.

  Here, a structure in which the slide side plate 32 is slidably supported on the base side plate 31 will be described with reference mainly to FIG. For convenience of illustration, FIG. 3 shows only the guide 38 side.

  As described above, the bent portions 41 and 42 are formed on both side edges of the base side plate 31, the guide 37 is provided in the bent portion 41, and the guide 38 is provided in the bent portion 42. Yes. The guides 37 and 38 are made of a resin material such as polyacetal resin. Polyacetal resin is an engineering plastic that is excellent in strength, elastic modulus, impact resistance, sliding characteristics, and the like because of mixing of an amorphous part and a crystalline part.

  The guides 37 and 38 can be molded using a known molding method (for example, a molding method). The guides 37 and 38 can be insert-molded with respect to the slide side plate 32. When insert molding is performed, it is not necessary to attach the guides 37 and 38 in the bent portions 41 and 42, so that the assembly process of the slide mechanism 30A can be simplified.

  The guides 37 and 38 have engaging projections 58 and 59 formed at predetermined intervals. The formation positions of the engaging protrusions 58 and 59 are configured to correspond to the formation positions of the notches 45 and 46 formed in the bent portions 41 and 42. The engaging projections 58 and 59 are configured to engage with the notches 45 and 46 in a state where the guides 37 and 38 are attached to the bent portions 41 and 42.

  Furthermore, slide grooves 47 and 48 are formed in the guides 37 and 38 in the longitudinal direction (detailed in FIGS. 2 and 3). The width W (indicated by an arrow in FIG. 3) of the slide grooves 47 and 48 is set to be slightly larger than the thickness of the edge portions 50 and 51. When the slide side plate 32 is attached to the base side plate 31, the edge portions 50 and 51 of the slide side plate 32 are inserted into the slide grooves 47 and 48 of the guides 37 and 38. Thus, the edge portions 50 and 51 of the slide side plate 32 are supported by the base side plate 31 via the guides 37 and 38.

  The edge portions 50 and 51 are configured to be slidable in the directions of arrows X1 and X2 within the slide grooves 47 and 48. Accordingly, the slide side plate 32 is slidable with respect to the base side plate 31. At this time, since the guides 37 and 38 are made of polyacetal resin, which is an engineering plastic having excellent sliding characteristics, as described above, the metal edge portions 50 and 51 slide in the slide grooves 47 and 48. However, the durability is good.

  Further, when the edge portions 50 and 51 slide in the slide grooves 47 and 48, a force is applied to the guides 37 and 38 in the directions of arrows X1 and X2 in the figure. However, since the engaging projections 58 and 59 formed integrally with the guides 37 and 38 are engaged with the notches 45 and 46, the guides 37 and 38 move in the X1 and X2 directions. There is no. For this reason, the guides 37 and 38 are not detached from the base side plate 31, and the reliability of the slide mechanism 30A can be improved.

  The wires 33 and 34 are linear spring materials, and piano wires are used in this embodiment. Ends 33B and 34B of the wires 33 and 34 on the arrow X1 direction side in the figure are fixed to the base side plate 31 by being attached to the wire attachment pins 54A and 55A. Further, end portions 33C and 34C on the side of the arrow X2 in the figure of the wires 33 and 34 are fixed to the base side plate 31 by being attached to the wire attachment pins 54B and 55B.

  At this time, in this embodiment, the end portions 33B, 33C, 34B, and 34C are wound around and attached to the wire attachment pins 54A, 54B, 55A, and 55B from the inside to the outside. Specifically, the end 33B is wound around the wire attachment pin 54A in the direction indicated by the arrow r1 (clockwise in FIG. 1), and the end 33B is wound from the inside to the outside and fixed. Yes. Similarly, the end 33C is wound around the wire attachment pin 54B in the direction indicated by the arrow r2 (counterclockwise in FIG. 1), thereby fixing the end 33C from the inside to the outside. .

  Further, the end portion 34B is wound around the wire attachment pin 55A in the direction indicated by the arrow r3 (counterclockwise direction in FIG. 1) so that the end portion 34B is wound and fixed from the inside to the outside. Similarly, the end portion 34C is wound around the wire attachment pin 55B in the direction indicated by the arrow r4 (clockwise direction in FIG. 1), whereby the end portion 34C is wound and fixed from the inside to the outside. Each mounting pin 54A, 54B, 55A, 55B is inserted into a small hole formed in advance in the bottom plate portion 39 and then fixed to the bottom plate portion 39 by welding or the like.

  The wire attachment pins 54A and 55A and the wire attachment pins 54B and 55B are separated in the directions of the arrows X1 and X2. The mounting positions of the mounting pins 54A, 55A, 54B, and 55B are set at positions close to the longitudinal edges 31A and 31B of the base side plate 31.

  The wires 33 and 34 are configured to have a substantially square shape in a plan view when attached to the base side plate 31. Specifically, bent portions 33A and 34A formed in a mountain shape are formed at substantially central positions between the end portions 33B and 34B of the wires 33 and 34 and the end portions 33C and 34C. The bent portions 33A and 34A are arranged on the base side plate 31 so as to protrude outward.

  As a result, the pair of wires 33 and 34 disposed to face each other are gradually separated from the end portions 33B and 34B and the end portions 33C and 34C toward the center (the pair of wires 33 and 34 in FIG. 1). (Distance in the left-right direction) gradually increases, and becomes widest at the positions where the bent portions 33A and 34A face each other.

  Further, the wires 33 and 34 are disposed so as to substantially contact the bottom plate portion 39 of the base side plate 31. The wires 33 and 34 are disposed in a separated portion between the base side plate 31 and the slide side plate 32. By arranging the wires 33 and 34 close to the bottom plate portion 39, the slide mechanism 30A is thin. Can be achieved.

  In the description of the present specification, “inner side” is defined as a center line (indicated by arrow ST in FIG. 1) extending in the X1 and X2 directions of the base side plate 31 with respect to a certain reference position. , “Outside” is defined as the side opposite to the center line side with respect to the reference position.

  Specifically, when the reference position is the wire attachment pin 54B, the inner side of the wire attachment pin 54B is on the left side of the wire attachment pin 54B in FIG. Moreover, the outer side with respect to the wire attachment pin 54B (reference position) is on the right side of the wire attachment pin 54B in FIG. Similarly, the inner side with respect to the wire attachment pin 55B (reference position) is on the right side of the wire attachment pin 55B in FIG. Furthermore, the outside of the wire attachment pin 55B (reference position) is on the left side of the wire attachment pin 55B in FIG.

  Here, the description returns to the configuration of the slide mechanism 30A. The rollers 35 and 36 are disposed on the back surface (the surface on the side facing the bottom plate portion 39) of the slide side plate 32 using the roller mounting pins 52 and 53. Accordingly, the rollers 35 and 36 move integrally as the slide side plate 32 moves (slides).

  The rollers 35 and 36 are formed of a polyacetal resin having excellent impact resistance, sliding characteristics, and the like, similar to the guides 37 and 38 described above. In addition, curved concave portions 56 and 57 that are recessed in a curved shape with a predetermined curvature inward are formed on the outer peripheral portions of the rollers 35 and 36 (detailed in FIG. 3). The curvatures of the curved recesses 56 and 57 are set so as to correspond to the radii of the wires 33 and 34.

  The rollers 35 and 36 engage with the outside of the wires 33 and 34 with the slide side plate 32 mounted on the base side plate 31. As the slide side plate 32 moves, the rollers 35 and 36 roll outside the wires 33 and 34.

  At this time, as described above, the curved recesses 56 and 57 having the curvature corresponding to the radius of the wires 33 and 34 are formed on the outer circumferences of the rollers 35 and 36, so that the rollers 35 and 36 are detached from the wires 33 and 34. This can be effectively prevented. In addition, since the rollers 35 and 36 are made of polyacetal resin having excellent impact resistance, sliding characteristics, etc., the life of the rollers 35 and 36 can be extended.

  Next, the operation of the slide mechanism 30A configured as described above will be described with reference to FIGS. 1 and 4 to 8. FIG.

  1 and 4 show a state in which the slide side plate 32 is positioned at the end in the arrow X1 direction on the base side plate 31 (hereinafter, this state is referred to as a first stop state). In the first stop state, the wires 33 and 34 urge the rollers 35 and 36 with elastic force.

  At this time, since the wires 33 and 34 are bent so that the bent portions 33A and 34A bent in a mountain shape are convex outward, the elastic force from the wires 33 and 34 is the force in the direction of the arrow X1. It is divided by the force that is orthogonal to the inward direction. The slide side plate 32 is urged in the direction of the arrow X1 by a component force acting in the X1 direction from the wires 33 and 34. Therefore, the slide side plate 32 is prevented from sliding (opening) with respect to the base side plate 31.

To slide the slide side plate 32 from the first stop state, the slide side plate 32 is moved in the arrow X2 direction with respect to the base side plate 31. At this time, the operator a force for sliding the sliding side plate 32 and F _0. When the force F ₀ is larger than the component force in the X1 direction from the wires 33 and 34, the slide side plate 32 starts moving in the arrow X2 direction.

  5 and 6 show a state in which the rollers 35 and 36 have moved to the positions of the bent portions 33A and 34A of the wires 33 and 34 (hereinafter referred to as neutral states). In this neutral state, the elastic force of the wires 33 and 34 acts on the rollers 35 and 36 in the outward direction, and no component force is generated in the directions of the arrows X1 and X2.

  When the operator moves the slide side plate 32 in the X2 direction from this neutral state, the rollers 35 and 36 engage with the wires 33 and 34 on the arrow X2 direction side with respect to the positions of the bent portions 33A and 34A. . Since the wires 33 and 34 have a mountain shape, the component force of the elastic force that the wires 33 and 34 urge against the rollers 35 and 36 is reversed to the direction of the arrow X2.

  Therefore, when the slide side plate 32 is moved to the position where the inversion state is obtained, the operator does not subsequently urge the slide side plate 32 to slide in the X2 direction (that is, the operator does not move the slide side plate 32 from the slide side plate 32). The slide-side plate 32 automatically moves in the X2 direction by the elastic force (elastic restoring force) of the wires 33 and 34 even if they are released. An operation in which the slide side plate 32 automatically moves by the elastic force of the wires 33 and 34 is referred to as a slide assist operation.

7 and 8 show a state in which the slide side plate 32 is positioned at the end in the arrow X2 direction on the base side plate 31 (hereinafter, this state is referred to as a second stop state). Wire 33 and 34 in the second stop state biases the resilient force to the roller 35, 36, the slide-side plate 32 is urged in the arrow X2 direction by the component force F _2. Thus, the force component indicated by the arrow F _2, which prevents the sliding side plate 32 relative to the base side plate 31 maintains the state of being moved in the X2 direction end portion, it is easily moved.

  Thus, when the slide mechanism 30A according to the present embodiment moves the slide side plate 32 relative to the base side plate 31, if the base side plate 31 is moved to a position slightly ahead of the neutral state, A slide assist operation is performed, and the slide side plate 32 can be automatically moved. Therefore, the slide operation of the slide side plate 32 can be easily performed, and the operability can be improved.

  Further, in the slide mechanism 30A according to the present embodiment, bent portions 33A and 34A are formed at the approximate center positions of the wires 33 and 34 so as to be bent in a mountain shape, and the bent portions 33A and 34A are directed outward. Since it is configured to be convex, a relatively wide space can be formed in the central portion. Thus, by forming a relatively wide space at the center of the slide mechanism 30A, it is possible to give freedom to the arrangement positions of other components and devices arranged in the slide mechanism 30A such as the FPC 60. Is possible.

  Further, the bent portions 33A and 34A of the wires 33 and 34 are configured to be convex outward, so that the rollers 35 and 36 are disposed in the vicinity of the guides 37 and 38 outside the wires 33 and 34. For this reason, the rollers 35 and 36 move outside the region where other parts and devices such as the FPC 60 are disposed with the wires 33 and 34 interposed therebetween. It is possible to prevent interference between parts and devices.

  FIG. 9 shows a slide mechanism 30B which is a modification of the slide mechanism 30A according to the first embodiment. In FIG. 9, the same components as those shown in FIGS. 1 to 8 are denoted by the same reference numerals, and the description thereof is omitted.

  The slide mechanism 30A according to the first embodiment described above has a configuration in which the wire 33 and the wire 34 are arranged symmetrically with the center line ST interposed therebetween. On the other hand, this modification is characterized in that only one wire 33 is provided. Although FIG. 9 shows a configuration in which only the wire 33 located on the right side in the plan view is provided, a slide mechanism 30B in which only the wire 34 is provided may be used.

  Thus, even in the slide mechanism 30 </ b> B provided with one wire 33 or wire 34, it is possible to cause the slide side plate 32 to perform a slide assist operation. Further, the slide mechanism 30B according to the present modification can reduce the number of parts and reduce the size as compared with the slide mechanism 30A having the two wires 33 and 34.

  Next, a second embodiment of the present invention will be described. 10 to 17 are views for explaining a slide mechanism 130A according to the second embodiment. 10 to 17, the same components as those of the slide mechanisms 30A and 30B according to the first embodiment shown in FIGS. 1 to 9 are denoted by the same reference numerals, and the description thereof is omitted. .

  The slide mechanism 130A according to the present embodiment is also constituted by a base side plate 31, a slide side plate 32, wires 133 and 134, rollers 35 and 36, guides 37 and 38, and the like.

  The base side plate 31 is formed with bent portions 41 and 42 on both side portions on the long side of the bottom plate portion 39, and the bent portions 41 and 42 are formed with notches 45 and 46. Further, guides 37 and 38 are disposed in the bent portions 41 and 42. In addition, an opening 40 to which the FPC 60 is attached is formed at a substantially central position of the bottom plate portion 39.

  The slide side plate 32 has edge portions 50 and 51 formed on both sides of the base portion 49. The edge portion 50 is in sliding contact with the guide 37 disposed in the bent portion 41, and the edge portion 51 is bent. It is slidably contacted with a guide 38 disposed on 42. Thus, the slide side plate 32 is configured to be slidable in the directions of the arrows X1 and X2 in the figure by being guided by the guides 37 and 38.

  The wires 133 and 134 are linear spring materials made of a piano wire or the like as in the first embodiment. Ends 33B, 34B of the wires 133, 134 on the arrow X1 direction side in the figure are fixed to the base side plate 31 by being attached to the wire attachment pins 54A, 55A. Further, end portions 33C and 34C of the wires 133 and 134 on the arrow X2 direction side in the drawing are fixed to the base side plate 31 by being attached to the wire attachment pins 54B and 55B.

  A specific structure for attaching the end portions 33B, 33C, 34B, and 34C to the attachment pins 54A, 54B, 55A, and 55B will be described later for convenience of explanation.

  The wire mounting pins 54A and 55A and the wire mounting pins 54B and 55B are separated in the directions of arrows X1 and X2, and the mounting positions of the mounting pins 54A, 55A, 54B and 55B are in the longitudinal direction of the base side plate 31. It is set at a position close to the edge portions 31A and 31B. Therefore, the separation distance between the wire attachment pin 54A and the wire attachment pin 55A and the separation distance between the wire attachment pin 54B and the wire attachment pin 55B (indicated by an arrow L3 in FIG. 10) are relatively long apart. Yes.

  The wires 133 and 134 are configured to have a substantially square shape in a plan view when attached to the base side plate 31. Specifically, bent portions 133A and 134A that are bent in a mountain shape are formed at substantially the center positions of the end portions 33B and 34B and the end portions 33C and 34C of the wires 133 and 134, and the bent portions 133A, 134A is arrange | positioned so that it may become convex toward the inner side. As a result, the pair of wires 133 and 134 arranged to face each other are gradually separated from the end portions 33B and 34B and the end portions 33C and 34C toward the center (the pair of wires 133 and 134 in FIG. 10). (Distance in the left-right direction) becomes gradually narrower and becomes the narrowest at the position where the bent portions 133A and 134A face each other (this separation distance L4 is indicated by an arrow in FIG. 10).

  The rollers 35 and 36 are disposed on the back surface (the surface on the side facing the bottom plate portion 39) of the slide side plate 32 using the roller mounting pins 52 and 53. The rollers 35, 36 engage with the wires 133, 134 with the slide side plate 32 mounted on the base side plate 31. As the slide side plate 32 moves, the rollers 35 and 36 roll on the inner sides of the wires 133 and 134.

  Further, the separation distance L1 (indicated by an arrow in FIG. 10) between the pair of roller attachment pins 52 and 53 is the separation distance between the wire attachment pin 54A and the wire attachment pin 55A, and between the wire attachment pin 54B and the wire attachment pin 55B. It is set to be shorter than the separation distance L3 and larger than the separation distance L4 between the bent portion 33A and the bent portion 34A (L3> L1> L4).

The separation distances L1, L3, and L4 can be changed as appropriate as long as the above conditions are satisfied. And by this adjustment, it is possible to adjust the force F ₀ (shown in FIGS. 13, 14, etc.) required when the slide side plate 32 is moved.

  For example, the spring force of the wires 133 and 134 can be reduced by increasing the separation distance L4 between the bent portions 133A and 134A with respect to the separation distance L1 of the roller mounting pins 53 and 54. The force required to move the slide side plate 32 can be reduced. However, the force of the slide assist operation described later is also reduced.

  Next, the operation of the slide mechanism 130A configured as described above will be described with reference to FIGS.

  FIGS. 13A and 14 show a state where the slide side plate 32 is positioned at the end in the arrow X1 direction on the base side plate 31 (first stop state). In the first stop state, the wires 133 and 134 urge the rollers 35 and 36 with elastic force.

At this time, the wires 133 and 134 have bent portions 133A and 134A, and have a shape extending obliquely from the inner side to the outer side. For this reason, the elastic force from the wires 133 and 134 is divided into a force in the direction of the arrow X1 (indicated by the arrow F ₁ in FIG. 13A) and a force (not shown) that is orthogonal to this and directed inward. Divided.

The slide-side plate 32 is urged in the arrow X1 direction by the force component indicated by the arrow F _1. Accordingly, the component force indicated by the arrow F ₁ acts on the slide side plate 32 to prevent the slide side plate 32 from sliding relative to the base side plate 31.

To slide the slide side plate 32 from the stopped state, the slide side plate 32 is moved in the arrow X2 direction with respect to the base side plate 31. At this time, if the force of the operator sliding the slide side plate 32 is F ₀ , if F ₀ > 2 × F ₁ , the slide side plate 32 starts moving in the arrow X2 direction.

That is, when the slide side plate 32 is slid in the X2 direction, the operator slides the first housing 10 against the spring force (2 × F ₁ ) of the wires 133 and 134. The state in which the component force F ₁ of the elastic force of the wires 133 and 134 acts in the direction of the arrow X1 is referred to as a first reverse state.

  FIGS. 13B and 15 show a state in which the rollers 35 and 36 have moved to the positions of the bent portions 133A and 134A of the wires 133 and 134 (hereinafter referred to as neutral states). In this neutral state, the wires 133 and 134 urge the rollers 35 and 36 outward and urge the elastic force, so that no component force is generated in the directions of the arrows X1 and X2.

When the operator moves the slide side plate 32 in the X2 direction from this neutral state, the rollers 35 and 36 are engaged with the wires 133 and 134 on the arrow X2 direction side with respect to the positions of the bent portions 133A and 134A. The component force of the elastic force that the wires 133 and 134 urge against the rollers 35 and 36 is reversed as shown in FIG. Incidentally, a state where the component force _{F 2} of the elastic force of the wire 133 and 134 acts in the arrow X2 direction of the second inverted state.

Therefore, when the slide side plate 32 is moved to the position where the second inversion state is reached, the component force of the elastic force of the wires 133 and 134 is not required after that, even if the operator does not slide the slide side plate 32 in the X2 direction. By (2 × F ₂ ), the slide side plate 32 automatically moves in the X2 direction (slide assist operation).

FIGS. 13D and 16 show a state in which the slide side plate 32 is positioned at the end in the arrow X2 direction on the base side plate 31 (second stop state). Even in the second stop state, the wires 133 and 134 urge the rollers 35 and 36 with elastic force, and the component F ₂ urges the slide side plate 32 in the direction of the arrow X2. Thus, the force component indicated by the arrow F _2, maintains the state where the slide-side plate 32 is moved in the X2 direction end portion, are prevented from easily moving.

  As described above, also in the slide mechanism 130A according to the present embodiment, when the slide side plate 32 is moved with respect to the base side plate 31, if the base side plate 31 is moved to a position slightly ahead of the neutral state, the slide assist is performed. Operation is performed. For this reason, the slide operation of the slide side plate 32 with respect to the base side plate 31 can be easily performed, and the operability can be improved.

  Next, a structure for fixing the end portions 33B, 33C, 34B, and 34C of the wires 133 and 134 to the wire attachment pins 54A, 54B, 55A, and 55B will be described mainly with reference to FIGS.

  As described above, the wires 133 and 134 use linear spring materials such as piano wires. And it is set as the structure which arrange | positions the wires 133 and 134 to the base side plate 31 by attaching each end part 33B, 33C, 34B, 34C of the wires 133, 134 to the wire attachment pins 54A, 54B, 55A, 55B. In this case, the present embodiment is characterized in that the end portions 33B, 33C, 34B, and 34C are wound around the wire mounting pins 54A, 54B, 55A, and 55B from the outside toward the inside.

  Specifically, the end 33B is wound around the wire attachment pin 54A in the direction indicated by the arrow R1 (counterclockwise in FIGS. 10 and 17) so that the end 33B is wound from the outside to the inside. It has a fixed configuration. Similarly, the end portion 33C is wound around the wire attachment pin 54B in the direction indicated by the arrow R2 (clockwise in FIGS. 10 and 17), thereby fixing the end portion 33C by winding it from the outside to the inside. It is said.

  Further, the end 34B is wound around the wire attachment pin 55A in the direction indicated by the arrow R3 (clockwise in FIG. 17), whereby the end 34B is wound and fixed from the outside to the inside. Similarly, the end 34C is wound around the wire attachment pin 55B in the direction indicated by the arrow R4 (counterclockwise in FIGS. 10 and 17), thereby fixing the end 34C from the outside to the inside. It is configured.

  With this configuration, the wires 133 and 134 having the bent portions 133A and 134A that are bent in a mountain shape are arranged so that the bent portions 133A and 134A are convex toward the inside of the base side plate 31. In addition, a relatively wide space can be formed in the central portion of the base side plate 31.

  Here, as a comparative example, when the end portions 33B, 33C, 34B, and 34C of the wires 133 and 134 are wound around the wire mounting pins 54A, 54B, 55A, and 55B from the inside to the outside, that is, in this embodiment, A case where the end portions 33B, 33C, 34B, and 34C are attached in the opposite direction is shown by a one-dot chain line in FIG.

  Specifically, in the comparative example, the end 33B is wound around the wire attachment pin 54A in the direction indicated by the arrow S1 (clockwise in FIG. 17), and the end 33C is indicated by the arrow S2 with respect to the wire attachment pin 54B. It is wound in the direction shown (counterclockwise in FIG. 17).

  The end 34B is wound around the wire attachment pin 55A in the direction indicated by the arrow S3 (counterclockwise in FIG. 17), and the end 34C is directed toward the wire attachment pin 55B as indicated by the arrow S4 (FIG. 17). In the clockwise direction).

  As is clear from FIG. 17, in the comparative example in which the end portions 33B, 33C, 34B, and 34C are attached by being wound from the inside to the outside, the position of the wire 133 (indicated by a one-dot chain line) is the wire 133 ( Compared with the position indicated by the solid line), the position is indicated by the inner side as indicated by the arrow ΔL in the figure. Accordingly, the separation distance between the rollers 35 and 36 is L1 in the case of this embodiment, but becomes L2 narrower than this in the comparative example (L2 <L1). As described above, in the configuration of the comparative example, the bent portions 133A and 134A of the wires 133 and 134 protrude to the vicinity of the center of the base side plate 31, and the central region cannot be effectively used.

  On the other hand, in the configuration of this embodiment, a wide space can be formed at the center position of the base side plate 31 while the arrangement positions of the wire attachment pins 54A, 54B, 55A, and 55B are the same position. Thereby, in the present embodiment, the opening 40 can be set wide, and thus a wide FPC 60 can be used. Moreover, it becomes possible to arrange | position another component by the space of a center position expanding.

  FIG. 18 shows a slide mechanism 130B which is a modification of the slide mechanism 130A according to the second embodiment. In FIG. 18, the same components as those shown in FIGS. 10 to 17 are denoted by the same reference numerals, and the description thereof is omitted.

  The slide mechanism 130A according to the second embodiment described above has a configuration in which the wire 133 and the wire 134 are arranged symmetrically with the center line ST interposed therebetween. On the other hand, this modification is characterized in that only one wire 133 is provided. 18 shows a configuration in which only the wire 133 located on the right side in the plan view is provided, but a slide mechanism 130B in which only the wire 134 is provided may be used.

  In this way, even with the slide mechanism 130B provided with one wire 133 or wire 134, the slide assist operation can be performed on the slide side plate 32, similarly to the slide mechanism 30B shown in FIG. it can. In addition, the slide mechanism 130B according to this modification can reduce the number of parts and reduce the size compared to the slide mechanism 130A having the two wires 133 and 134.

30A, 30B, 130A, 130B Slide mechanism 31 Base side plate 32 Slide side plates 33, 34, 133, 134 Wires 33A, 34A, 133A, 134A Bending portions 33B, 33C, 34B, 34C End portions 35, 36 Rollers 37, 38 Guides 47, 48 Slide grooves 50, 51 Edge portions 52, 53 Roller mounting pins 54A, 54B, 55A, 55B Wire mounting pins 56, 57 Curved recesses 58, 59 Engaging projections

Claims (3)

A base side plate;
A slide side plate that slides on the base side plate;
A pair of mounting pins spaced apart on either the base side plate or the slide side plate;
Both ends are fixed to the mounting pin, and a wire made of a spring material disposed so that a bent portion formed in a mountain shape between the both ends protrudes toward the outside of the base side plate;
From the base side plate or the slide side plate, the wire is deformed and energized as the slide side plate slides by engaging with the wire, and the deformed wire A roller to which a restoring force is applied,
A slide mechanism characterized in that an end portion of the wire is wound around and fixed from the inner side to the outer side of the mounting pin.   The slide mechanism according to claim 1, wherein a resin guide that engages with an edge portion of the slide side plate is provided on the base side plate. Two wires are arranged to face the base side plate,
The slide mechanism according to claim 1, wherein two rollers are arranged to face the slide side plate.

Images