JP2006029510A - Swivel connection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive swivel connection device which can be also applied to a relatively small-sized member, has a simple structure, reduces the necessary number of parts, and can be reduced in part manufacturing and assembling costs. <P>SOLUTION: The swivel connection device rotatably connects an angle specific function means and a fixing means with each other, and has a rotation shaft 4 at either side of them and a rotation plate 3 at the other side. The rotation shaft has a cylinder section 41, a retaining cap 42, an engaging projection 45 and a width opening urging groove 44. The rotation plate has an inserting through hole 31, and an engaging recess 32 installed in an inside wall of the inserting through hole. The engaging projection is engaged with the engaging recess to be in engaged state, and the two are disengaged from each other to be in non-engaged state. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a rotary coupling device.

Various connecting devices having a structure capable of rotatably connecting two members to each other and temporarily locking at a specific angle are known.
For example, a technique for providing a rotatable support device at the bottom of the power supply unit main body so that the power supply unit can be placed on a flat surface or installed on a wall is known. (Patent Document 1). That is, when installing on a wall, the leg of the support device is rotated in the left-right direction and stored in the lower part of the unit body. Thus, the unit main body can be supported, and has means for locking the leg portion at a predetermined angle both when installed on the wall and when mounted on the flat surface. However, in this support device, since the means for locking the leg portion at a predetermined angle requires a gap as a space for bending the rod-shaped spring body, a relatively large member is assumed to be connected. It is not suitable for connecting members. Further, the rod-shaped spring body has a difficulty in strength.
In addition, a connecting device that can turn (rotate) an antenna and can stand still at an arbitrary angle in a portable wireless transceiver is also known (Patent Document 2). However, this coupling device has a drawback in that the number of parts of the engaging member is very large and the assembling process becomes very complicated, resulting in high manufacturing costs.

Japanese Patent No. 3493799 Utility Model Registration No. 2545975

  Therefore, the object of the present invention can be applied to a relatively small member, has a simple structure, requires a small number of parts, and can therefore reduce the cost of parts and the assembly cost. To provide an apparatus.

The above problems are solved by the present invention.
(A) the angle-specific function means and (B) the fixing means are connected to each other so as to be rotatable,
(1) Either one of the angle specific function means and the fixing means has a rotating shaft portion,
(2) A rotary coupling device having a rotating plate portion on the other side of the angle specific function means and the fixing means,
The rotating shaft portion (1) is (a) a cylindrical portion extending in a vertical direction from the base portion of one of the angle specific function means and the fixing means, and (b) provided at an upper end portion of the cylindrical portion. (C) at least one locking projection provided on the side wall portion of the cylindrical portion, and (d) biased in the direction of increasing the width, from the upper end of the holding cap portion to the axial direction of the rotating shaft portion Having an open width biasing groove extending to
The rotating plate part (2) has (e) an insertion through-hole, and (f) at least one locking recess provided in the inner wall of the insertion through-hole,
The shape of the cylindrical portion of the rotating shaft portion (1) and the shape of the inner wall portion of the insertion through-hole of the rotating plate portion (2) are matched so as to be rotatable with respect to each other,
The bottom shape of the cap portion is larger than the upper end shape of the cylindrical portion,
By narrowing the gap of the open width urging groove, the rotary shaft portion (1) is inserted into the insertion through-hole of the rotary plate portion (2), and the holding cap portion is exposed outside the insertion through-hole. Then, the gap is widened by the biasing action of the open width biasing groove, and the rotary shaft portion (1) can be connected to the rotary plate portion (2) in a mutually rotatable manner,
In the state where the rotating shaft portion is inserted and connected to the insertion through-hole, the opening width biasing groove is opened to the maximum when the locking convex portion is engaged with the locking concave portion. When it is in a width state and is in a locked state at a specific angle, the specific angle is determined when the above-mentioned locking convex part comes out of the locking concave part of the inner wall of the insertion through hole and is in contact with a wall surface other than the locking concave part. In the unlocked state at
This can be solved by the rotary connecting device.

  The rotary coupling device of the present invention includes a rotation shaft provided in one of the angle specific function means and the fixing means, and a rotary plate provided in the other of the angle specific function means and the fixing means. In a state where they are integrally combined, or provided on one of the angle specific function means and the fixing means, and on the other of the angle specific function means and the fixing means. It can exist in a separate state before a rotating plate part unites together.

  The present invention also relates to a rotating shaft piece for the rotary connecting device and a rotating plate piece for the rotary connecting device.

  The rotary coupling device of the present invention basically comprises only two members, that is, a rotary shaft portion and a rotary plate portion, and can be manufactured as an integrated structure, so that the number of parts is extremely small and the assembly is performed. The process is very simple and the manufacturing cost can be reduced. Moreover, since the rotating shaft part itself has an urging function, the entire apparatus can be reduced in size, and can be advantageously used as a rotary connecting device for a small member.

  In the present specification, the “angle-specific function means” means a means that can most effectively exert the function of the means when fixed at a specific angle. Typical examples of the “angle specific function means” are various illumination means, display means, holding means, photographing means, detection means, transmission means, reception means, or reflection means. For example, in an illuminating means such as a spotlight, it is necessary to fix and use the illuminated area so that light is irradiated. Alternatively, for example, if the number (temperature) displayed on the display screen is fixed in the upside down direction with respect to the observer, such as a temperature display liquid crystal plate, it may cause a reading error. It is preferably fixed at a certain angle. As described above, examples of the illumination means include a spotlight, and examples of the display means for displaying numbers include a hygrometer, a thermohygrometer, a clock, a timer, etc. in addition to the thermometer. Can do. As a holding means, for example, a memo paper holder, etc., as a photographing means, for example, a monitoring camera, as a detecting means, for example, as various sensors, as a transmitting means or as a receiving means, for example, as an antenna, as a reflecting means, for example, Various mirrors (for example, a plane mirror, a convex mirror, or a concave mirror) can be used.

  In the present specification, the “fixing means” is means for fixing the “angle-specific function means” to a certain article. In general, a display means such as a temperature display liquid crystal plate is often used by being fixed to a certain article. Therefore, the display means is usually provided with a fixing means. Just like the fixing means, it includes any means capable of fixing the “angle-specific function means” to various articles. Therefore, for example, a clip, a hook, a magnetic adsorption plate, a vacuum adsorption tool, a hook-and-loop fastener, or a belt can be used. In the rotary coupling device of the present invention, even if the “fixing means” is attached in an arbitrary direction, the “angle-specific function means” can be rotated and locked to an optimum angle.

  The angle-specific function means can be fixed to an arbitrary article by the fixing means. The rotary connecting device according to the present invention uses an angle-specific function unit (for example, a transmission unit, a reception unit) that is used by changing the angle of the locked state one after another after attaching one angle-specific function unit to an article. Means, reflecting means, or illumination means). Alternatively, the rotary coupling device of the present invention is also particularly suitable for application to angle-specific function means in which one angle-specific function means is used after being removed from one article to another. When attaching to a new article, it can be attached without considering the angle, and after being attached, it can be rotated and locked at an angle convenient for use. For example, a display means such as a temperature display liquid crystal plate can be attached to a vehicle (for example, an automobile, a motorcycle, a bicycle, or a baby stroller), furniture, electrical appliances, or business equipment one after another.

First, an embodiment in which the rotary coupling device of the present invention is applied to a spotlight will be described with reference to the accompanying drawings.
1 to 3 show a spotlight 10 equipped with the rotary coupling device 100 of the present invention. 1 is a perspective view of the spotlight 10 in a state where the light bulb 11 can be seen, FIG. 2 is a side view of the spotlight 10 in FIG. 1, and FIG. 3 is a bottom view of the spotlight 10 in FIG. .
As shown in FIGS. 1 to 3, the spotlight 10 includes a spotlight portion 1 and a fixing clip portion 2, and the spotlight portion 1 includes a light bulb 11, a chute portion 13 that defines an illumination field of the light bulb, and a back cover. Part 14, an on / off switch 15 (see FIG. 3), and a mounting base 12.

  The fixing clip portion 2 is rotatably connected to the mounting base portion 12 of the spotlight portion 1 by the rotary connecting device 100 of the present invention (see FIG. 2). The fixing clip portion 2 includes a substrate 21, a support column portion 22, and a holding plate 23, and can be fixed to an arbitrary article (for example, a pipe or a plate) by the fixing clip portion 2. .

  4 and 5 show a state in which the spotlight unit 1 and the fixing clip unit 2 are connected by the rotary connecting device 100 of the present invention. 4 is a perspective view of the spotlight 10 viewed from the back side with a part of the holding plate 23 of the fixing clip portion 2 cut away, and FIG. 5 is an exploded perspective view of FIG. As shown in FIGS. 4 and 5, on the mounting base 12 side of the spotlight part 1, the rotating base 4 extending in the vertical direction from the base 43 is provided with the mounting base 12 as the base 43. On the other hand, on the substrate 21 side of the fixing clip portion 2, the substrate 21 is used as the rotating plate portion 3, and an insertion through-hole 31 is provided in the rotating plate portion 3. As will be described later, the rotary coupling device 100 of the present invention inserts and penetrates the rotary shaft portion 4 into the insertion through-hole 31 to thereby fix the spotlight portion 1 which is an angle specific function means and a fixing clip which is a fixing means. The part 2 can be integrally and rotatably coupled.

Hereinafter, the substrate 21 of the fixing clip portion 2 will be described as the rotating plate portion 3, and the mounting base portion 12 of the spotlight portion 1 will be described as the base portion 43.
6 is a partially enlarged perspective view of a region A of the mounting base 12 of the spotlight unit 1 shown in FIG. As shown in FIG. 6, the rotating shaft portion 4 is provided on the base portion 43 with the mounting base portion 12 of the spotlight portion 1 as the base portion 43.
(A) a cylindrical portion 41 extending vertically from the base portion 43,
(B) a holding cap portion 42 provided at the upper end of the cylindrical portion 41;
(C) A locking convex portion 45 provided on the side wall portion of the cylindrical portion 41, and (d) an open width urging groove 44 extending in the axial direction of the rotary shaft portion 4 from the upper end of the holding cap portion 42.
have. The open width urging groove 44 is urged in a direction in which the width of the open width urging groove 44 is increased in a state of being inserted into the insertion through-hole 31.

FIG. 7 is a partially enlarged perspective view of a partial region of the substrate 21 of the fixing clip portion 2 shown in FIG. As shown in FIG. 7, the substrate 21 of the fixing clip portion 2 is a rotating plate portion 3, and the rotating plate portion 3 is
(E) Insertion through-hole 31, and (f) Locking recess 32 provided in the inner wall of the insertion through-hole 31.
have.

Next, a method for inserting the rotary shaft portion 4 into the rotary plate portion 3 will be described with reference to FIGS.
As shown in FIG. 8, the rotating shaft portion 4 is advanced toward the insertion through-hole 31 of the rotating plate portion 3 in the direction of arrow B with the holding cap portion 42 as the head. At this time, the insertion through hole 31 is inserted from the side of the opening 31 a provided with a locking recess 32 (for example, a belt-like groove) provided in the inner wall portion of the insertion through-hole 31. In the state before insertion, the urging action in the direction of expanding the width of the open width urging groove 44 is not expressed in the rotating shaft portion 4. In addition, a locking recess 32 (for example, a belt-like groove) is provided on the inner wall of the insertion through-hole 31 in a state of extending in the axial direction, and a portion 33 where the locking recess 32 is not provided (see FIG. 7), the inner diameter d of the portion 33 where the locking recess 32 is not provided is smaller than the outer diameter D formed by the circumferential portion 46 of the bottom surface of the holding cap portion 42.

  When the holding cap portion 42 enters the inside of the insertion through-hole 31, as shown in FIG. 9, the bottom circumferential portion 46 of the holding cap portion 42 is not provided with the engaging recess 33 in the inner wall portion of the insertion through-hole 31. Since the opening width urging groove 44 receives a pressing action from the inner side and the width of the opening urging groove 44 is reduced, the holding cap portion 42 can pass through the insertion through-hole 31. That is, the bottom circumferential portion 46 of the holding cap portion 42 has a shape that can penetrate the insertion through-hole 31 when the open width biasing groove 44 narrows the width. The holding cap portion is a cap shape as shown in FIGS. 8 to 10 and is preferably widest at the bottom circumferential portion, but is widest at other portions (for example, the middle portion). May be a wide shape (for example, a meteorite type). In this case, the widest portion needs to have a shape that can penetrate the insertion through-hole 31.

  When the rotating shaft portion 4 is further pushed in the direction of arrow B, the bottom circumferential portion 46 of the holding cap portion 42 becomes the other opening portion 31b (see FIG. 8) of the insertion through-hole 31 as shown in FIG. To the outside. Here, the holding cap part 42 is released from the pressing action by the inner wall part of the insertion through-hole 31, and in the direction of expanding the width of the open width urging groove 44 in the rotating shaft part 4 as a reaction of the pressing action. Therefore, the width of the open width urging groove 44 is expanded, and the bottom circumferential portion 46 of the holding cap portion 42 is expanded in the peripheral region of the opening 31 b of the insertion through-hole 31. Therefore, even if the rotating shaft portion 4 is pulled in the direction (arrow C) opposite to the insertion direction (direction of arrow B), it is held in a state where it does not fall out. In this way, the rotating shaft portion 4 can be integrated into the body by simply inserting the rotating shaft portion 4 into the rotating plate portion 3 and exposing the holding cap portion 42 from the opposite opening.

While the rotary shaft portion 4 is inserted into the insertion through-hole 31 of the rotary plate portion 3 and they are combined, the width of the open width biasing groove 44 is inserted from the pre-insertion width α (see FIG. 8). The width is reduced to β (see FIG. 9) and further expanded to the insertion completion width γ (see FIG. 10). Here, the relationship between these widths is
α ≧ γ> β
It becomes. When the pre-insertion width α is equal to the insertion completion width γ, the urging action in the direction of expanding the width of the open width urging groove 44 does not work when the rotating plate portion 3 and the rotating shaft portion 4 are combined. When the pre-insertion width α is larger than the insertion completion width γ, the urging action in the direction of expanding the width of the open width urging groove 44 works, and the drop-off preventing action after coalescence and the click feeling during rotation are provided. improves.

Next, the mutual rotational motion after the rotating shaft portion 4 and the rotating plate portion 3 are combined will be described with reference to FIG.
FIG. 11A is a schematic cross-sectional view of the locked state at a specific angle, and FIGS. 11B and 11C are schematic plan views of the locked state at different specific angles. is there. FIG. 11D is a schematic cross-sectional view of the unlocked state, and FIGS. 11E and 11F are schematic plan views of the unlocked state at different angles. .
11A and 11B (ie, the locking projection 45 provided on the side wall portion of the cylindrical portion 41 of the rotating shaft portion 4 is provided on the inner wall portion of the insertion through-hole 31. When the rotating shaft portion 4 is rotated in the direction of the arrow D relative to the rotating plate portion 3 from the state of being engaged with the locking recess 32, it is shown in FIGS. 11 (d) and 11 (e). In a non-locking state (that is, the locking protrusion 45 provided on the side wall portion of the cylindrical portion 41 of the rotating shaft portion 4 is disengaged from the locking recess 32 provided on the inner wall portion of the insertion through-hole 31, and the locking recess is not installed. In a state of being in contact with the portion 33). The width of the open width biasing groove 44 becomes narrower from the locked width γ to the unlocked width δ. Therefore, in the unlocked state, an attempt is made to widen the gap of the open width biasing groove 44. The urging action to act on the rotating shaft 4.

  When the rotating shaft 4 is further rotated in the direction of the arrow D with respect to the rotating plate 3 from the non-locking state shown in FIG. 11 (d) and FIG. 11 (e), the rotating shaft 4 The locking projection 45 provided on the side wall portion of the cylindrical portion 41 is engaged with the locking recess 32 provided on the inner wall portion of the insertion through-hole 31, and the locking shown in FIGS. 11 (a) and 11 (c). When the state is converted to a state and the locking projection 45 is engaged with the locking recess 32, a click feeling is generated. At this time, the width of the open width urging groove 44 increases from the non-locked state width δ to the locked state width γ. Furthermore, when the rotating shaft part 4 is rotated in the direction of the arrow D relative to the rotating plate part 3 from the locked state shown in FIGS. The locking convex portion 45 provided on the side wall portion of the portion 41 is disengaged from the locking concave portion 32 provided on the inner wall portion of the insertion through-hole 31, and is brought into the non-locking state shown in FIGS. 11 (d) and 11 (f). Convert.

  The shape of the open width urging groove provided in the rotating shaft portion used in the present invention is not particularly limited, and can be, for example, various shapes shown in FIG. For example, as shown in FIG. 12 (a), the groove 44 having a rectangular cross section having an equal width from the upper end 44a of the open width biasing groove to the bottom 44b of the open width biasing groove, as shown in FIG. ) As shown in FIG. 12 (c), the width gradually decreases from the upper end 44a of the open width urging groove toward the bottom 44b of the open width urging groove. As shown in FIG. 12D, the groove 44 having a triangular section whose width gradually decreases from the upper end 44a of the bias groove toward the bottom 44b of the open width biasing groove. A trapezoidal groove 44 whose width gradually increases toward the groove bottom 44b, as shown in FIG. 12E, a spring-type bias that biases the groove in the direction in which the width of the open width biasing groove is increased. Further, as shown in FIG. 12 (f), a curved bottom surface is formed on the open width biasing groove bottom portion 44b. It can be mentioned groove 44 of U-shaped cross section which. Note that the cross-sectional shape of the groove shown in FIG. 12 (e) is not limited to the rectangular shape, and may be the various types described above, and the cross-sectional shape of the groove having a curved bottom surface shown in FIG. 12 (f). However, it is not limited to the rectangular cross section having the same width, and may be the various types described above.

  The shape of the locking projection provided on the rotating shaft used in the present invention is not particularly limited, and may be various shapes shown in FIGS. For example, as shown in FIG. 13 (a) [partial perspective view] and FIG. 13 (b) [partially cutaway partial perspective view], a hemispherical type locking convex portion 45 provided at an intermediate portion of the cylindrical portion 41 is used. It can also be semi-elliptical (not shown). Further, as shown in FIG. 14A [partial perspective view] and FIG. 14B [partially cutaway partial perspective view], a semi-conical locking projection extending from the middle part of the cylindrical part 41 toward the bottom surface. Portion 45, a semi-conical locking extending from the upper end of the cylindrical portion 41 toward the bottom as shown in FIG. 15 (a) [partial perspective view] and FIG. 15 (b) [partially cutout partial perspective view] It can be a convex portion 45. Furthermore, as shown in FIG. 16A [partial perspective view] and FIG. 16B [partially cutaway partial perspective view], a quadrangular pyramid-shaped locking projection extending from the middle part of the cylindrical part 41 toward the bottom surface. Part 45, or a quadrangular pyramid-shaped locking projection (not shown) extending from the upper end to the bottom, or FIG. 17 (a) [partial perspective view] and FIG. 17 (b) [partially cutout partial perspective view] ], A triangular pyramid-shaped locking convex portion 45 extending from the intermediate portion of the cylindrical portion 41 toward the bottom surface, or a triangular pyramid-shaped locking convex portion (not shown) extending from the upper end portion toward the bottom surface. be able to.

  As shown in FIGS. 14 to 17, when the locking projection 45 is a belt-like locking projection extending from the upper end portion of the cylindrical portion 41 to the bottom surface, or extending from the intermediate portion to the bottom surface, It is preferable that the height from the side wall portion of the cylindrical portion 41 is gradually reduced from the upper end portion or the intermediate portion toward the bottom surface, so that a cone is formed as a whole.

  Further, as shown in FIGS. 18A and 18B (schematic cross-sectional views, respectively), the locking projection 45 is orthogonal to the axial direction of the rotating shaft 4 inside the locking projection 45. A biasing means 47 such as a spring biasing outward can also be provided. By providing this urging means 47, compared with the width γ of the open width urging groove 44 in the locked state (FIG. 18 (a)), the open width is increased in the non-locked state (FIG. 18 (b)). Since it is not necessary to reduce the width γ of the bias groove 44, the combined state of the rotating shaft portion and the rotating plate portion can be favorably maintained.

  As long as the cross-sectional shape orthogonal to the axial direction is a circle, the diameter of the circular axis portion of the rotating shaft portion does not change with respect to the axial direction of the cylindrical portion (that is, a cylindrical shape) or changes (that is, changes) (Conical frustum shape) or a combination thereof. FIG. 19 is a schematic cross-sectional view of the rotating shaft portion 4 having the truncated cone-shaped column portion 51. FIG. 19 (a) shows a locked state, and FIG. 19 (b) shows a non-locked state. . The rotary shaft portion 4 having the truncated cone-shaped column portion 51 shown in FIG. 19 is easy to be integrally formed with the mounting base portion 12 of the spotlight portion 1, and further, the rotary shaft portion 4 is inserted into the rotary plate portion 3. Easy to operate.

  The number of open width urging grooves provided in the rotating shaft portion can be one as in the above-described embodiment, but a plurality of open width urging grooves can also be provided. FIG. 20 is a partially enlarged perspective view similar to FIG. 6 regarding the rotating shaft portion 4 having the open width urging grooves 54A, 54B, 54C, 54D. In order to distinguish this from the positive urging groove, one open width urging groove as in the above embodiment is hereinafter referred to as a negative urging groove. The rotating shaft portion 4 having the plus urging grooves 54A, 54B, 54C, 54D can be combined with the rotating plate portion similarly to the rotating shaft portion 4 having the minus urging grooves.

The mutual rotational movement after the rotating shaft part 4 having the plus urging grooves 54A, 54B, 54C, 54D is combined with the rotating plate part 3 will be described with reference to FIG.
FIG. 21A is a schematic cross-sectional view of the locked state at a specific angle, and FIGS. 21B and 21C are schematic plan views of the locked state at different specific angles. is there. FIG. 21D is a schematic cross-sectional view of the unlocked state, and FIGS. 21E and 21F are schematic plan views of the unlocked state at different angles. .
In the mode shown in FIG. 21, the cylindrical portion and the holding cap portion of the rotating shaft portion 4 are divided into four and divided into four holding cap portions 52A, 52B, 52C, and 52D (and cylindrical portions connected to them). Of the four cylindrical portions, the two cylindrical portions (the cylindrical portions connected to the holding cap portions 52A and 52C) are not provided with locking projections, and the remaining two cylindrical portions (holding portions). One locking convex portion 45 is provided on each side wall portion of the cylindrical portion connected to the cap portions 52B and 52D.

  The locking state shown in FIG. 21A and FIG. 21B (that is, the locking projection 45 provided on the side wall portion of the cylindrical portion 41 of the rotating shaft portion 4 is provided on the inner wall portion of the insertion through-hole 31. When the rotary shaft portion 4 is rotated in the direction of the arrow E relative to the rotary plate portion 3 from the state of being engaged with the locking concave portion 32, it is shown in FIGS. 21 (d) and 21 (e). In a non-locking state (that is, the locking protrusion 45 provided on the side wall portion of the cylindrical portion 41 of the rotating shaft portion 4 is disengaged from the locking recess 32 provided on the inner wall portion of the insertion through-hole 31, and the locking recess is not installed. In a state of being in contact with the portion 33).

  In this non-locking state, the two columnar portions (the columnar portions connected to the holding cap portions 52B and 52D) having the locking projections 45 are separated from the locking recesses 32 so that the locking projections 45 are disengaged. Since it comes into contact with the non-recessed portion 33, it is pushed inward, whereas in the two columnar portions not provided with the locking convex portion 45 (columnar portions connected to the holding cap portions 52 </ b> A and 52 </ b> C), There is no change in the state in which the side wall is in surface contact with the inner wall of the insertion through-hole 31 as in the locked state. Therefore, the connection between the rotating shaft portion 4 and the rotating plate portion 3 is maintained well even in the non-locking state. Note that the width of the open width biasing groove 54 becomes narrower from the locked width γ to the unlocked width δ for all of the open width biased grooves 54A, 54B, 54C, 54D. In the locked state, there is an urging action for expanding the gap of the open width urging groove 54 in the two columnar portions (columnar portions connected to the holding cap portions 52B and 52D) provided with the locking convex portion 45. It works on the rotating shaft 4.

  When the rotating shaft portion 4 is further rotated in the direction of the arrow E relative to the rotating plate portion 3 from the non-locking state shown in FIGS. 21 (d) and 21 (e), the locking protrusion 45 is obtained. 21 (a) and FIG. 21 (c), in which the locking projections 45 of the two cylindrical portions (columns connected to the holding cap portions 52B and 52D) are engaged with the next locking recess 32. It will be converted into the locked state shown in FIG. At this time, the width of the open width urging groove 54 is increased from the non-locked state width δ to the locked state width γ for all of the open width urging grooves 54A, 54B, 54C, 54D. Further, when the rotating shaft 4 is rotated in the direction of the arrow E relative to the rotating plate 3 from the locked state shown in FIGS. 21A and 21C, FIGS. It converts into the non-locking state shown in FIG.21 (f).

The rotary coupling device of the present invention may have a form (two-way type) in which the rotation direction can be both clockwise and counterclockwise as in the above-described embodiment, or a one-way type (that is, , A configuration in which rotation in only one direction, clockwise or counterclockwise, is possible. A one-way type embodiment will be described with reference to FIG.
FIG. 22 is a schematic plan view of the rotating shaft portion 4 having the minus urging groove 44 and simultaneously shows the contour of the inner wall surface of the insertion through-hole of the rotating plate portion combined with the rotating shaft portion 4. As shown in FIG. 22 (a), the locking projection 55 provided on the side wall of the cylindrical portion of the rotating shaft 4 has a semicircular cross section, and the locking projection 62 provided on the inner wall of the insertion through-hole. Correspondingly, the shape is semicircular in cross section. Therefore, when it is rotated in the direction of the arrow F, the locking projection 55 is easily detached from the locking recess 62, but the locking projection 55 is locked even if it is rotated in the reverse direction (the direction opposite to the arrow F). It is not easy to remove from the recess 62.

  22 (a) is a schematic plan view of the locked state at a specific angle, FIG. 22 (b) is a schematic plan view of the unlocked state, and FIG. 22 (c) is It is a typical top view of the latching state in the specific angle different from the specific angle of Fig.22 (a). In FIG. 22, the same parts as those in the above-described embodiments are indicated by the same symbols. The one-way type rotary coupling device can be a rotary shaft portion having a plus biasing groove.

The rotary coupling device of the present invention is configured such that the holding cap portion of the rotating shaft portion is exposed from the surface of the rotating plate portion, or is not exposed on the surface of the rotating plate portion, as in the above embodiment. You can also. The latter non-exposed embodiment is shown in FIGS.
FIG. 23 is a schematic cross-sectional view of the non-exposed rotary coupling device 101. FIG. 24 shows a state in which the non-exposed rotary coupling device 101 is applied to the spotlight 10 shown in FIGS. Similarly to FIG. 25, a part of the holding plate 23 of the fixing clip portion 2 is cut away, and the spotlight 10 is seen from the back side, and FIG. 25 is an exploded perspective view of FIG.
As shown in FIG. 23 to FIG. 25, a rotating shaft portion 4 extending from the base portion 43 in the vertical direction is provided on the mounting base portion 12 side of the spotlight portion 1 with the mounting base portion 12 as a base portion 43. On the other hand, on the substrate 21 side of the fixing clip portion 2, the substrate 21 is used as the rotating plate portion 3A, and the insertion through-hole 31 is provided in the rotating plate portion 3A. In the non-exposed rotary coupling device 101 of the present invention, the upper end portion of the holding cap portion 42 protrudes from the surface 37 of the rotating plate portion 3A and is not exposed by further providing the dent 36 on the insertion through-hole 31. Can be. 23 to 25, the same portions as those in the above embodiments are indicated by the same symbols.

  As shown in each of the above embodiments, the rotary connecting device according to the present invention uses only one combination of one rotary shaft portion and one rotary plate portion, and uses an angle specific function means (for example, a spotlight portion). ) And a fixing means (for example, a fixing clip portion) can be integrally connected so as to be rotatable, or a plurality of combinations of one rotating shaft portion and one rotating plate portion are used, and an angle specifying function means. Can also be rotatably coupled to the fixing means. An embodiment in which one angle-specific function means and one fixing means are integrally connected to each other by using two combinations of one rotary shaft portion and one rotary plate portion are shown in FIGS. 26 to 28. explain.

  26 is a schematic perspective view showing a part of the rotary display device 200 using the rotary coupling devices 100A and 100B of the present invention, FIG. 27 is a schematic cross-sectional view thereof, and FIG. FIG. The rotation display device 200 includes a cylindrical rotating body 71 as the angle specifying function means and a housing 80 as a fixing means. The housing 80 includes an upper base 81A, a lower base 81B, and a support bar 82 that connects them. A rotation shaft portion 84A is provided at the central portion of the inner wall surface of the upper base 81A, while an insertion through-hole 74A is provided at the central portion of the upper surface 72A of the cylindrical rotating body 71. Can be combined. In addition, a rotation shaft portion 84B is provided at the central portion of the inner wall surface of the lower base 81B, while an insertion through-hole 74B is provided at the central portion of the bottom surface 72B of the cylindrical rotating body 71. Similarly, both can be combined.

  The rotating shaft portion 84A included in the upper base 81A and the rotating shaft portion 84B included in the lower base 81B are configured so that the cylindrical rotating body 71 has the rotating shaft portions 84A and 84B as rotation axes in the direction of arrow G. The rotating shaft is provided in common so that it can rotate. In addition, the locking position (the angle at which the locking state is established) and the non-locking position in the rotary coupling devices 100A and 100B of the rotary display device 200 may be the same or may not be the same.

Furthermore, the rotary connecting device according to the present invention can connect the angle specifying function means and the fixing means so as to be integrally rotatable by using three combinations of one rotary shaft portion and one rotary plate portion. Such an embodiment is shown in FIG.
FIG. 29 shows a rotary display device 300 in which a side plate 85 is provided on one side of the housing 80 of the rotary display 200 shown in FIGS. 26 to 28 and an insertion through-hole 86 is provided at the center of the side plate 85. It is. When a rotation shaft portion (not shown) similar to the above is inserted into the insertion through-hole 86, it can be integrally connected to a fixing means (not shown) provided with the rotation shaft portion. It can be rotated in the direction of arrow H. Note that the cylindrical rotating body 71 in the housing 80 can rotate in the direction of the arrow G in the same manner as described above.

In the rotary coupling device of the present invention, the rotating shaft portion is manufactured by being integrally formed with one of the base portions of the angle specifying function means and the fixing means, or separately from the base portion. After manufacturing, it can be attached to the base. The rotating shaft piece manufactured separately from the base portion can be attached to the base portion by various known methods.
For example, as shown in FIG. 30, there is a method in which a screw thread (or screw thread) rotating shaft piece 4 </ b> A having a thread 49 provided on a leg portion 48 of a cylindrical portion 41 is screwed into a base and fixed. Alternatively, as a method of fixing a rotating shaft piece having a screw-like screw thread on a leg (that is, a screw-carrying rotating shaft piece) to a base, for example, the screw-carrying rotating shaft piece is a base A method of screwing and fixing the tip of the leg portion exposed to the opening on the opposite side with a nut, or a screw hole provided with a screw thread carrying rotary shaft piece on the base. There is a method of inserting and fixing to. Furthermore, the rotating shaft part piece manufactured separately from the base part can also be fixed to the base part by an adhesive or fusion.

  Furthermore, in the rotary coupling device of the present invention, a rotation shaft portion for mounting the base portion can be provided on the leg portion of the rotation shaft portion in place of the screw thread 49 shown in FIG. As shown in FIG. 31, the rotating shaft piece 4B of this aspect has another rotating shaft portion 4X on the leg portion 48 of the cylindrical portion 41 for connection to the base 43A. The rotating shaft portion 4X for mounting the base portion has a cylindrical portion 41X, a holding cap portion 42X provided at the upper end portion of the cylindrical portion 41X, and the cylindrical portion, just like the rotating shaft portion used in the rotary coupling device according to the present invention. The locking projection 45X provided on the side wall of the portion 41X, and the open width urging groove 44X extending in the axial direction of the rotary shaft 4X from the upper end of the holding cap 42X. Further, as shown by an arrow K, the rotating shaft piece 4B of this aspect is rotatably connected to the insertion through-hole 31A of the base 43A at the leg portion 48. On the other hand, the rotating shaft piece 4 </ b> B is rotatably connected to the insertion through-hole 31 of the rotating plate portion 3 as indicated by an arrow J.

  In the rotary coupling device of the present invention, it is preferable that the cross-sectional shape of the locking concave portion provided on the inner wall portion of the insertion through hole of the rotary plate portion depends on the cross-sectional shape of the locking convex portion of the rotary shaft portion used in combination. . Moreover, when a latching convex part is a strip | belt-shaped latching convex part extended in the direction of a bottom face from the upper end part or intermediate part of a cylindrical part, the shape of a latching recessed part also becomes strip | belt shape in connection with it. In addition, when the locking projection is a hemispherical locking projection or a semi-elliptical locking projection provided in the middle part of the cylindrical portion, the shape of the locking recess is also hemispherical Alternatively, it may be a semi-elliptical type, and may be a strip extending in the direction of the rotation axis on the inner wall portion of the insertion through hole.

  In the rotary coupling device of the present invention, the number of locking recesses provided on the inner wall portion of the insertion through-hole of the rotating plate portion or the interval between the plurality of locking recesses is not particularly limited, and can be set to a locking state. It can be determined appropriately depending on the number and angle of preferred embodiments. For example, when the locking state is realized at intervals of 90 degrees, four locking recesses are provided at equal intervals on the inner wall of the insertion through hole, and when the locking state is realized at intervals of 45 degrees, the insertion through hole Eight locking recesses are provided at equal intervals on the inner wall of the.

  In the rotary coupling device of the present invention, in the locked state, the inner wall portion of the insertion through-hole is the entire locking recess non-installing portion, and the entire locking convex portion non-installing portion of the columnar side wall portion of the rotating shaft portion is provided. It is preferable that the surface contact is possible. Accordingly, the inner wall portion locking recess non-installation portion and the columnar side wall portion locking projection non-installation portion of the insertion through-hole have a circular cross-sectional shape orthogonal to the rotation axis.

  In the rotary coupling device of the present invention, the material of each component constituting the rotary coupling device is not particularly limited, but it is preferable to form at least the rotary shaft portion from a flexible material (for example, a synthetic resin or a metal material). For example, as shown in FIGS. 8 to 10, when the rotating shaft portion 4 is inserted into the rotating plate portion 3 and combined, the flexibility of changing the gap of the open width urging groove 44 is provided. It is necessary to be. Further, when the rotary shaft portion 4 is molded, if the pre-insertion width α is adjusted to be larger than the insertion completion width γ, the biasing action in the direction of expanding the width of the open width biasing groove 44 after the combination is achieved. It works to prevent falling off after coalescence and click feeling during rotation.

  In the rotary coupling device of the present invention, the holding cap portion is preferably in the shape of a cap as shown in the above embodiment, and the holding cap portion is formed of a flexible material (for example, a synthetic resin or a metal material). More preferably. When the cap-shaped holding cap part is made of a flexible material, for example, as shown in FIG. 9, when the holding cap part 42 enters the inside of the insertion through-hole 31, the insertion through-hole is formed in the bottom circumferential part 46. As shown in FIG. 10, the bottom circumferential portion 45 of the holding cap portion 42 receives a pressing action from the locking recess non-installation portion 33 of the inner wall portion 31 and slightly deforms and slightly contracts the bottom circumferential portion 46 itself. However, when it is pushed out from the opening 31b (see FIG. 8) of the insertion through-hole 31, it is also released from the aforementioned pressure contraction, and the bottom circumferential portion 46 expands, so that the retainability after combining is improved.

  According to the rotary coupling device of the present invention, it can be applied to a relatively small member, has a simple structure, requires a small number of components, and can reduce component manufacturing costs and assembly costs.

1 is a perspective view of a spotlight including a rotary coupling device according to the present invention. It is a side view of the spotlight of FIG. FIG. 3 is a bottom view of the spotlight of FIG. 2. FIG. 3 is a perspective view of the spotlight as seen from the back side, with a part of the holding plate of the fixing clip portion of the spotlight of FIG. 2 cut away. It is a disassembled perspective view of the spotlight of FIG. FIG. 6 is a partially enlarged perspective view of a region A in FIG. 5. It is a partial expansion perspective view which shows the partial area | region of FIG. It is a typical fragmentary sectional view which shows the state before inserting the rotating shaft part of the rotation coupling device by this invention in a rotating plate part. FIG. 9 is a schematic partial cross-sectional view showing a state in the middle of inserting the rotating shaft portion into the rotating plate portion following the state of FIG. 8. FIG. 10 is a schematic partial cross-sectional view showing a state in which the rotating shaft portion is inserted and connected to the rotating plate portion following the state of FIG. 9. It is explanatory drawing which shows typically the latching state and non-locking state by the rotating shaft part and rotating plate part of the rotation coupling device by this invention. Fig.11 (a) is typical sectional drawing which shows the state which the rotating shaft part and rotating plate part of the rotary coupling device by this invention latched at the specific angle. FIG.11 (b) is a schematic top view of the latching state of Fig.11 (a) in a specific angle. FIG.11 (c) is a typical top view of the latching state of Fig.11 (a) in another specific angle. FIG.11 (d) is typical sectional drawing which shows the state which the rotating shaft part and rotating plate part of the rotation coupling device by this invention are not latching. FIG. 11E is a schematic plan view of the non-locking state of FIG. Fig. 11 (f) is a schematic plan view of another non-locking state of Fig. 11 (d). It is sectional drawing which shows the various aspects of the open width | variety energizing groove in the rotation coupling device of this invention. It is explanatory drawing which shows the one aspect | mode of the latching convex part in the rotation coupling device of this invention. FIG. 13 a is a partial perspective view showing one aspect of the locking projection in the rotary coupling device of the present invention. 13b is a partially cutaway partial perspective view of FIG. 13a. It is explanatory drawing which shows another aspect of the latching convex part in the rotation coupling device of this invention. FIG. 14a is a partial perspective view showing another aspect of the locking projection in the rotary coupling device of the present invention. 14b is a partially cutaway partial perspective view of FIG. 14a. It is explanatory drawing which shows another aspect of the latching convex part in the rotation coupling device of this invention. FIG. 15a is a partial perspective view showing still another aspect of the locking projection in the rotary coupling device of the present invention. FIG. 15b is a partially cutaway partial perspective view of FIG. 15a. It is explanatory drawing which shows another aspect of the latching convex part in the rotation coupling device of this invention. FIG. 16 a is a partial perspective view showing still another aspect of the locking projection in the rotary coupling device of the present invention. 16b is a partially cutaway partial perspective view of FIG. 16a. It is explanatory drawing which shows another aspect of the latching convex part in the rotation coupling device of this invention. FIG. 17a is a partial perspective view showing still another aspect of the locking projection in the rotary coupling device of the present invention. FIG. 17b is a partially cutaway partial perspective view of FIG. 17a. In the rotation coupling device of this invention, it is explanatory drawing of the latching state by the rotating shaft part which has a spring, and a rotating plate part. FIG. 18 a is a schematic cross-sectional view of a locking state between a rotary shaft portion having a spring and a rotary plate portion in the rotary coupling device of the present invention. FIG. 18b is a schematic cross-sectional view of the unlocked state of FIG. 18a. In the rotation coupling device of this invention, it is explanatory drawing of the latching state by a truncated cone-shaped rotating shaft part and a rotating plate part. FIG. 19a is a schematic cross-sectional view showing a locking state between the truncated cone-shaped rotating shaft portion and the rotating plate portion in the rotary coupling device of the present invention. 19b is a schematic cross-sectional view of the unlocked state of FIG. 19a. It is a fragmentary perspective view which shows the one aspect | mode of the rotating shaft part in the rotation coupling device of this invention. It is explanatory drawing which shows typically the latching state and non-locking state by the rotating shaft part and rotating plate part of the rotation coupling device of FIG. FIG. 21A is a schematic cross-sectional view showing a state where the rotating shaft portion and the rotating plate portion of FIG. 20 are locked at a specific angle. FIG. 21B is a schematic plan view of the locked state of FIG. 21A at a specific angle. FIG. 21C is a schematic plan view of the locked state of FIG. 21A at another specific angle. FIG. 21D is a schematic cross-sectional view showing a state where the rotating shaft portion and the rotating plate portion in FIG. 20 are not locked. FIG. 21 (e) is a schematic plan view of the non-locking state of FIG. 21 (d). FIG. 21 (f) is a schematic plan view of another non-locking state of FIG. 21 (d). FIG. 22 (a) schematically showing the locked state and the non-locked state in the one-way type rotary coupling device according to the present invention shows the locked state in the one-way type rotary coupling device according to the present invention. It is a schematic plan view to show. FIG. 22B is a schematic plan view showing the non-locking state of FIG. FIG. 22 (c) is a schematic plan view showing a locked state at another specific angle in FIG. 22 (a). It is typical sectional drawing which shows the non-exposure type | mold rotation coupling device by this invention. FIG. 24 is a perspective view of the spotlight as seen from the back side, with a part of the holding plate of the fixing clip portion of the spotlight provided with the non-exposed rotary coupling device of FIG. 23 cut away. FIG. 25 is an exploded perspective view of FIG. 24. It is a typical perspective view which cuts out and shows a part of rotation display apparatus using two rotation connection apparatuses by this invention. It is typical sectional drawing of FIG. FIG. 27 is a schematic exploded perspective view of FIG. 26. It is a typical perspective view which shows the rotation display apparatus using three rotation coupling devices by this invention. It is a side view of a box screw-shaped rotating shaft part piece used for the rotation connecting device by the present invention. Schematic cross-sections of a rotary shaft part piece having a base part mounting rotary shaft part in a leg part, and a fixed base and a rotary plate part used in combination with the rotary shaft part piece, used in the rotary coupling device according to the present invention FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Spotlight part; 2 ... Clip part for fixation; 3, 3A ... Rotary plate part;
4 ... rotating shaft part; 4A, 4B ... rotating shaft part piece; 10 ... spotlight;
DESCRIPTION OF SYMBOLS 11 ... Light bulb; 12 ... Mounting base part; 13 ... Chute part; 14 ... Back cover part;
15 ... ON / OFF switch; 21 ... Substrate; 22 ... Post unit; 23 ... Holding plate;
31, 31A ... insertion through-hole; 31a, 31b ... opening; 32 ... locking recess;
33 ... Locking recess non-installation part; 36 ... Kubomi; 37 ... Surface;
41, 41X ... cylindrical part; 42, 42X ... holding cap part; 43 ... base part;
43A: base; 44, 44X: open width urging groove (minus urging groove);
44a, 44b ... open width urging groove bottom; 45, 45X ... locking projection;
46 ... Bottom circumferential portion; 47 ... Biasing means; 48 ... Leg part of rotating shaft piece;
49... Thread; 51.
52A, 52B, 52C, 52D ... holding cap part;
54, 54A, 54B, 54C, 54D ... open width urging groove (plus urging groove);
55 ... Locking convex part; 62 ... Locking concave part; 71 ... Cylindrical rotating body;
72A ... cylindrical top surface; 72B ... cylindrical bottom surface; 73 ... cylindrical side surface;
74A, 74B, 86 ... insertion through hole; 80 ... housing;
81A ... upper base; 81B ... lower base;
82 ... support rod; 84A, 84B ... rotating shaft part; 85 ... side plate part;
DESCRIPTION OF SYMBOLS 100, 100A, 100B ... Rotary connection apparatus; 101 ... Non-exposure type rotary connection apparatus; 200, 300 ... Rotation display apparatus.

Claims (5)

The angle-specific function means and the fixing means are connected to each other so as to be rotatable,
Either one of the angle specific function means and the fixing means has a rotating shaft portion,
A rotary coupling device having a rotating plate portion on the other side of the angle specific function means and the fixing means,
The rotating shaft portion is a cylindrical portion extending in a vertical direction from the base portion of one of the angle specific function means and the fixing means, a holding cap portion provided at an upper end portion of the cylindrical portion, At least one locking projection provided on the side wall, and an open width biasing groove that is biased in the direction of widening the width and extends in the axial direction of the rotary shaft from the upper end of the holding cap;
The rotating plate portion has an insertion through-hole and at least one locking recess provided in the inner wall of the insertion through-hole,
The shape of the cylindrical portion of the rotating shaft portion and the shape of the inner wall portion of the insertion through-hole of the rotating plate portion are matched so that they can rotate with each other,
The bottom shape of the cap portion is larger than the upper end shape of the cylindrical portion,
By narrowing the gap of the opening width urging groove, the rotating shaft portion is inserted into the insertion through-hole of the rotating plate portion, and the holding cap portion is exposed outside the insertion through-hole. By enlarging the gap by the urging action of the urging groove, the rotating shaft part can be connected to the rotating plate part so as to be mutually rotatable,
In the state where the rotating shaft portion is inserted and connected to the insertion through-hole, the opening width urging groove is opened to the maximum when the locking convex portion is engaged with the locking concave portion. When it is in a width state and is in a locked state at a specific angle, the specific angle is determined when the above-mentioned locking convex part comes out of the locking concave part of the inner wall of the insertion through hole and is in contact with a wall surface other than the locking concave part. In the unlocked state at
The rotary coupling device as described above.   In a state where the rotation shaft portion provided in one of the angle specific function means and the fixing means and the rotary plate portion provided in the other of the angle specific function means and the fixing means are integrally combined. The rotary coupling device according to claim 1.   Before the rotation shaft provided in one of the angle specific function means and the fixing means and the rotary plate provided in the other of the angle specific function means and the fixing means are integrally combined. The rotary coupling device according to claim 1, which is in a separate state.   The rotating shaft part piece for rotary coupling devices as described in any one of Claims 1-3.   The rotating plate part piece for rotation coupling devices as described in any one of Claims 1-3.

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