JP2009104958A - Embedded appliance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an embedded appliance capable of stabilizing an embedded installation status regardless of variation in a size of an appliance embedding hole of a fixing portion, and suppressing damage to the appliance embedding hole in removing the embedded appliance from the fixing portion. <P>SOLUTION: On the assumption that a downlight 11 is embedded and installed by being inserted into an appliance embedding hole of a ceiling, the downlight 11 is provided with an appliance body 12, spring support means 21, and a pair of torsion springs 31 made of wire spring. The body 12 includes a flange 14 contacted with a surface of the ceiling. The support means 21 are provided so as to hold outer side surface of the body 12, and each of them includes a spring end bracket 23 and a winding portion bracket 22. Each torsion spring 31 includes winding portions 32 supported by the spring end brackets 23, spring ends 33 supported by the winding brackets 22 by extending from one end of the winding portions, arm portions 34 extended from the other end of the winding portions, and a pressing portion 35 being bent from the arm portions and being contacted resiliently with a back surface of the ceiling so as to hold a periphery of the appliance embedding hole with the flange 14. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an implantable device such as a downlight embedded in a ceiling, for example.

  2. Description of the Related Art Conventionally, a downlight that is embedded in a ceiling using a pair of attachment springs attached to the outer surface of an instrument body is known (see, for example, Patent Document 1).

The downlight mounting spring is formed of a strip-shaped leaf spring, which hangs downward from the fixing position with respect to the instrument main body, and has a shape in which its tip is turned obliquely upward to become a free end. And this downlight is attached to the ceiling by sandwiching the peripheral edge of the ceiling mounting hole from above and below with the root portion turned upward of the mounting spring and the donut-shaped frame provided in the instrument body. It is like that.
Japanese Patent Laying-Open No. 2005-243597 (FIG. 1, paragraph 0006)

  The maintenance of the state in which the downlight of Patent Document 1 is embedded and installed in the ceiling depends on the repulsive force of the portion where the mounting spring made of a leaf spring contacts the edge of the mounting hole of the ceiling.

  For this reason, if the mounting hole is large due to variations in the size of the mounting hole on the ceiling, the repulsive force of the mounting spring will be reduced and the holding power of the downlight on the ceiling will be reduced, resulting in a stable mounting state. There are things you can't get. Also, when the downlight is removed from the ceiling during maintenance, etc., as the downlight is pulled down, the mounting spring rubs the edge of the ceiling mounting hole from the initial stage of the pulling down, resulting in damage to the mounting hole. There is.

  It is an object of the present invention to stabilize an embedded installation state regardless of variations in the size of an instrument embedding hole in a mounted portion and to suppress damage to an instrument embedding hole associated with removal from the mounted portion. It is to provide a mold tool.

  The invention according to claim 1 is an implantable instrument that is inserted into an instrument embedding hole opened in a member to be attached and embedded in the member to be attached, and an instrument body having a flange in contact with the surface of the member to be attached; A spring support means provided so as to sandwich the instrument body from the outer surface and having a spring end receiver and a winding receiver; and a pair of torsion springs made of wire springs, which are supported by the winding receiver A spring end that extends from one end of the winding and is supported by the spring end receiver, an arm that extends from the other end of the winding, and a flange bent from the arm and the flange. A pair of torsion springs having a pressing portion that elastically contacts the back surface of the attached member so as to sandwich the peripheral portion of the instrument embedding hole therebetween.

  In the first aspect of the present invention, the flange is preferably provided at one end in the axial direction of the instrument body, but may be provided at an intermediate position in the axial direction of the instrument body. According to the first aspect of the present invention, the spring end receiver of the spring support means restrains the movement of the spring end of the torsion spring in the direction in which the winding of the winding portion of the torsion spring is loosened, thereby causing the torsion spring to exert a spring action. Point to the site. In the first aspect of the invention, the winding portion receiver of the spring support means points to a portion that holds the winding portion in order to prevent the winding portion of the torsion spring from moving from a predetermined position. And this winding part receptacle can be formed, for example with the axis | shaft fitted to the inner periphery of a winding part, and has a relief part which avoids the arm part and spring end part of a torsion spring, and the cylinder fitted to the outer periphery of a winding part It can also be formed by a shape fitting part. In the invention of claim 1, the spring support means provided so as to sandwich the instrument main body from the outer surface may be provided in a pair on a line orthogonal to the central axis of the instrument main body, or shifted from the orthogonal line. A pair may be provided on each of two lines parallel to this line. In the invention of claim 1, the wire spring forming the torsion spring can use a spring wire having a circular or square cross section, and the winding portion of the torsion spring is a portion that is wound at least once. Pointing.

  In order to embed and install the implantable device of the invention of claim 1 in the member to be mounted, the arms of the pair of torsion springs are moved by hand so that the presser is furthest away from the back surface of the flange while strengthening the winding of the winding. The pair of torsion springs may be inserted into the instrument embedding hole together with the instrument main body while the state is constrained, and then the restriction of the arms of the pair of torsion springs by hand may be released. With this release, the arm portion of the pair of torsion springs is returned to the flange side by the spring force of the winding portion, and the presser portion hits the back surface of the member to be attached. Even in this state, the winding portion is in a state in which a spring force is accumulated, and the presser portion elastically presses the back surface of the member to be attached by this spring force. As a result, the flange of the instrument main body hits the surface of the member to be attached, and the flange and the holding part sandwich the peripheral part of the instrument embedding hole, and the implantable instrument is embedded and installed in the member to be attached.

  In this way, the embedded device can be attached to the attached member by sandwiching the attached member in the thickness direction between the flange of the device main body and the holding portion of the pair of torsion springs. The holding force with respect to the member does not depend on the variation in the size of the device embedding hole of the mounted member, and the embedded installation state of the implantable device can be stabilized depending on the spring force of the torsion spring.

  To remove the embedded implantable device from the mounted member, hold the arm body of the pair of torsion springs with the instrument body pulled out to some extent, and these arm and presser parts are the most from the back of the flange. After extending along the outer surface so as to move away, the instrument body may be pulled out from the instrument embedding hole in that state.

  During this pull-out, the arm part will be at the edge of the instrument embedding hole until the instrument body is pulled out so that the winding receiver is positioned on the front side of the mounted member beyond the same height as the back surface of the mounted member. Do not touch. Thereby, it can suppress that the edge of an instrument embedding hole is rubbed by an arm part from the initial stage which pulls out an instrument main body, and an instrument embedding hole is damaged.

  According to a second aspect of the present invention, in the first aspect of the invention, each of the torsion springs includes a pair of the winding portion, a spring end portion, and an arm portion, and the pair of arm portions are interposed via the push portion. The torsion springs are both supported by the spring support means on the outer surface of the instrument body.

  In the second aspect of the invention, since the pair of torsion springs are supported on both sides by the spring support means on the outer surface of the instrument body, as the presser of the back surface of the attached member by the presser becomes stable, the implantable instrument The embedded installation state of can be made more stable. In addition, as described above, the pair of torsion springs are supported on both sides by the spring support means on the outer surface of the instrument body, so when the arm portion is moved by hand so that the presser portion is furthest away from the back surface of the flange, The arm portions of the pair of torsion springs extending from the spring support means can be gripped with fingers so as to approach each other. In operation of such an arm part, since it is not forced to operate with a single hand over an instrument main body and an arm part, operativity can be improved.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the presser foot is such that the presser side portion of the arm portion and the presser portion are continuous with an obtuse angle when the instrument body is viewed in plan view. It is characterized in that the part side portion is bent obliquely. In this invention, "the presser part side part of the arm part and the presser part are continuous with an obtuse angle" means that when the instrument body is viewed in plan, the presser part side part of the torsion spring and the presser part This means that the angle sandwiched between them forms an obtuse angle, and the presser side portion and the presser part can be formed as a straight line or a curved line.

  In the invention of claim 3, when the arm body is operated so that the presser part is furthest away from the back surface of the flange, the presser part of the torsion spring and the arm part are perpendicular to each other when the instrument body is viewed in plan view. Without forming a corner, the portion corresponding to this corner is an oblique pressing portion side portion of the arm portion. Therefore, when the instrument embedding hole is circular, when the torsion spring is inserted into the instrument mounting hole together with the instrument body, the torsion spring is not easily caught on the edge of the instrument embedding hole. Workability can be improved.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the winding portion side portion of the arm portion is in a direction away from the back surface of the flange when the instrument body is viewed from the side. It is bent so as to protrude, and the length of the root portion from the bending apex of the winding portion side portion to the winding portion is longer than the thickness of the mounted member.

  In this invention of Claim 4, when the winding part side site | part of an arm part is bent, it is pinched | interposed by a part of arm part from the bending vertex of a winding part side site | part to the presser part, and the flange back surface of an instrument main body. Since the angle can be increased, the arm part does not contact the edge of the instrument embedding hole until the instrument main body is pulled out to such an extent that the base part of the arm part can be grasped by hand from the front side of the mounted member. Thereby, when pulling out an instrument main body, it can suppress that the edge of an instrument embedding hole is rubbed by an arm part, and an instrument embedding hole is damaged.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the winding portion receiver of the spring support means is configured so that the flange side of the instrument body is viewed from the side when the instrument body is viewed from the side. It is characterized by the fact that it is provided close to.

  In the invention of claim 5, the length of the arm portion extending between the winding portion and the pressing portion can be shortened as compared with the case where the winding portion receiver is provided close to the back surface portion of the instrument body. Thereby, since the pressing force of the pressing portion with respect to the back surface of the mounted portion is suppressed from being reduced due to the bending of the arm portion, the embedded installation state of the implantable device can be further stabilized.

  According to the first aspect of the present invention, it is possible to stabilize the embedded installation state regardless of variations in the size of the instrument embedding hole of the attached part, and to damage the instrument embedding hole due to the removal from the attached part. An implantable device that can be suppressed can be provided.

  According to the invention of claim 2, in addition to being able to stabilize the embedded installation state of the implantable device, it is possible to improve the operability of the pair of torsion springs when attaching and detaching the implantable device.

  According to the third aspect of the present invention, for example, when the instrument body is inserted into the circular instrument mounting hole and embedded, the torsion spring is not easily caught on the edge of the instrument embedded hole, so that the workability of the embedded installation can be improved. is there.

  According to the fourth aspect of the present invention, it is possible to further suppress damage to the instrument embedding hole that accompanies removal from the attached portion.

  According to the invention of claim 5, the embedded installation state of the implantable device can be further stabilized.

  A downlight according to a first embodiment of the present invention will be described with reference to FIGS.

  2 to 4 and 6, reference numeral 1 denotes an attached portion, for example, a ceiling of a building. An instrument embedding hole 2 is formed in the ceiling 1. The instrument embedding hole 2 is circular.

  Next, an implantable instrument, for example, a downlight 11, which is inserted into the instrument embedding hole 2 and embedded in the ceiling 1 will be described.

  The downlight 11 includes an instrument body 12, for example, a pair of spring support means 21, and a pair of torsion springs 31.

  The instrument main body 12 is formed of an aluminum alloy or the like for heat dissipation to the surrounding atmosphere, and has a main body case 13 and a flange 14. The main body case 13 has a substantially cylindrical shape, with one end serving as a front surface being opened and the other end serving as a back surface being closed. In the main body case 13, although not shown, a light source that projects light through the one end opening, a socket to which the light source is detachably attached, a reflecting mirror that controls light distribution of light emitted from the light source, a light source lighting device, and the like Is contained. As shown in FIGS. 3 and 5, the side wall of the main body case 13 has a pair of wall portions 13 a parallel to each other. The outer diameter of the main body case 13 is smaller than the instrument embedding hole 2.

  The flange 14 projects, for example, integrally outward from the one end of the main body case 13 and is continuous in the circumferential direction of the main body case 13. The diameter (outer diameter) of the flange 14 is larger than the instrument embedding hole 2.

  As shown in FIGS. 3 and 5, the pair of spring support means 21 is disposed on the outer surface of the instrument body 12 so as to sandwich the body case 13 from the width direction intersecting the central axis (not shown) of the instrument body 12. ing. That is, a pair of spring support means 21 is provided so that the instrument main body 12 may be pinched | interposed from the outer surface. Specifically, on the outer surface of the wall portion 13a formed on both sides in the radial direction of the main body case 13, and at the bottom of the instrument body 12, that is, half the height of the instrument body 12, as shown in FIG. It is arranged between the position and the flange 14, more preferably close to the flange 14.

  The spring support means 21 includes a winding receiver 22 and a spring end receiver 23 as illustrated in FIGS. 1 and 7 and the like.

  The winding portion receiver 22 is formed of a cylindrical or columnar shaft that is integrally projected on the wall portion 13a. In the case of the present embodiment, a straight line (not shown) connecting the central axes of the winding receivers 22 of the pair of spring support means 21 is used to support the windings of a pair of torsion springs 31 described later. A winding receiver 22 is provided at a position orthogonal to the central axis of the winding. A distance L (see FIG. 1) between these winding portion receivers 22 and the back surface of the flange 14 is set to a size exceeding the thickness of the ceiling 1.

  The spring end receiver 23 is an integrally molded product such as an aluminum alloy, and is fixed to the lower portion of the wall portion 13a with a screw 24. As representatively shown in FIG. 7, the spring end receiver 23 has a pair of fixing pieces 23a, a pair of load-bearing walls 23b, and a cover wall portion 23c.

  Each fixing piece 23a is located near the lower part of the winding receiver 22 and is screwed to the outer surface of the wall 13a. Each bearing wall 23b is bent at a right angle with respect to the fixed piece 23a, and the spacing between these bearing walls 23b is larger than the diameter of the winding receiver 22. The height dimension of the fixed piece 23a and the load bearing wall 23b, in other words, the length in the direction in which the central axis of the instrument main body 12 extends is the same. The cover wall portion 23c is provided in parallel with the fixed pieces 23a across the pair of load bearing walls 23b. The height of the cover wall 23c, in other words, the length in the direction in which the central axis of the instrument main body 12 extends is fixed so that the tip can be covered in contact with or close to the tip of the winding receiver 22. It is set longer than 23a and the bearing wall 23b.

  The pair of torsion springs 31 are formed, for example, by bending a metal spring wire having a circular cross section. These torsion springs 31 have the same size and the same structure, and are formed to have a pair of winding portions 32, a pair of spring end portions 33, a pair of arm portions 34, and a presser portion 35.

  Specifically, the pair of winding portions 32 are formed in a coil shape by being wound a plurality of times, for example. The spring end portion 33 extends from one end of each winding portion 32. The arm part 34 is extended to each winding part 32 from the other end. The presser portion 35 is bent from the arm portion 34 and integrally connects the tips of the pair of arm portions 34.

  These torsion springs 31 have the winding portions 32 at both ends fitted to the pair of winding portion receivers 22, the arm portion 34 or the pressing portion 35 of the torsion spring 31 is brought into contact with the back surface of the flange 14, and the spring ends The portion 33 is supported by the load bearing wall 23 b of the spring end receiver 23 and supported by the instrument body 12. In this supported state, the winding portion 32 of the torsion spring 31 is in a tightened state, so that the spring end portion 33 is kept in contact with the inner surface of the load-bearing wall 23 and, for example, a pressing portion 35 of the torsion spring 31. Is kept in contact with the back surface of the flange 14 so as not to protrude from the flange 14.

  The pair of torsion springs 31 are provided in an arrangement that is 180 ° symmetrical around the central axis of the instrument body 12 as shown in FIGS. 3 and 5. At the same time, each of the one winding portion 32 of each torsion spring 31 is fitted to one winding portion receiver 22 side by side in the axial direction, and each torsion spring fitted to this one winding portion 32 is fitted. The winding direction of one winding portion 32 of 31 is reverse (see FIG. 7). Similarly, each of the other winding portions 32 of each torsion spring 31 is fitted in the other winding portion receiver 22 in the axial direction. The winding direction of the other winding part 32 of each torsion spring 31 fitted to the other winding part 32 is also reversed.

  The procedure for attaching these torsion springs 31 to the instrument body 12 is as follows.

  First, after fitting one (first) winding portion 32 of one (first) torsion spring 31 to one winding portion receiver 22 projecting from one wall portion 13a of the instrument body 12 The one (first) winding portion 32 of the other (second) torsion spring 31 is fitted. Next, the other (second) winding portion 32 of the other (second) torsion spring 31 is fitted into the other winding portion receiver 22 protruding from the other wall portion 13a of the instrument body 12. Later, the other (second) winding portion 32 of one (first) torsion spring 31 is fitted.

  Thereafter, each of the spring end portions 33 extended from the first winding portion 32 of the first and second torsion springs 31 is placed between the load-bearing walls 23b of one spring end portion receiver 23. One spring end receiver 23 is screwed to the lower outer surface of one wall 13 a of the instrument body 12. Similarly, each of the spring end portions 33 extended from the second winding portion 32 of the first and second torsion springs 31 is placed between the load-bearing walls 23b of the other spring end portion receiver 23, and the other The spring end receiver 23 is screwed to the lower outer surface of the instrument body 12.

  As the attachment is completed in this manner, each winding portion 32 is in a tightened state. As a result, the pair of spring end portions 33 of the first torsion spring 31 are in elastic contact with the inner surface of the load bearing wall 23b positioned on the first torsion spring 31 side of the spring end portion receiver 23. While being supported, the pressing portion 35 of the first torsion spring 31 is held in a state of elastically contacting the back surface of the flange 14. Similarly, the pair of spring end portions 33 of the second torsion spring 31 are in a state of elastically contacting the inner surface of the load bearing wall 23b positioned on the second torsion spring 31 side of the spring end portion receiver 23. While being supported, the holding portion 35 of the second torsion spring 31 is held in a state of elastically contacting the back surface of the flange 14.

  The pair of arm portions 34 and the presser portion 35 included in the first torsion spring 31 that is attached to the instrument body 12 and supported by the both ends in the above-described procedure are viewed from the back side of the downlight 11 and viewed from the front side as shown in FIG. As shown in FIG. 2, the pair of arm portions 34 and the presser portion 35 provided in the second torsion spring 31 that is arranged so as to surround the half circumference of the main body case 13 and that is attached to the instrument main body 12 are viewed in plan view. In other words, it is arranged so as to surround the remaining half circumference of the main body case 13 as shown in FIG. Further, the cover wall 23c of the spring end receiver 23 comes into contact with or close to the tip of the winding receiver 22 so that the winding portion 32 fitted to the winding receiver 22 is detached from the winding receiver 22. To prevent.

  Each of the arm portions 34 of the pair of torsion springs 31 includes a pressing portion side portion 34a and a winding portion side portion 34b continuous thereto.

  A holding portion side portion 34a formed of a portion of the arm portion 34 near the holding portion 35 is bent obliquely. The presser portion side portion 34a and the presser portion 35 are integrally continuous with each other by forming an obtuse angle α (see FIG. 3) when the instrument body 12 is viewed in plan view. Therefore, as shown in FIG. 3, the presser part 35 and the pair of arm parts 34 are substantially U-shaped when the instrument body 12 is viewed in plan view, in other words, when viewed from the back side of the instrument body in the front direction. ing.

  As shown in FIGS. 1 and 7, etc., the winding portion side portion 34b, which is a portion near the winding portion 32 of the arm portion 34, protrudes in a direction away from the back surface of the flange 14 when the instrument body 12 is viewed from the side. It is bent into a V shape. The winding portion side portion 34b includes a first portion 34b1 and a second portion 34b2 that are inclined in opposite directions. Although the optimum angle of the bending angle β (see FIGS. 1 and 2) of the winding portion side portion 34b is 110 °, the bending angle β can be arbitrarily selected within a preferable range of 110 ° ± 20 °.

  The first portion 34b1 is a portion extending between the pressing portion side portion 34a and the second portion 34b2. As shown in FIG. 1 and the like, the first portion 34b1 is provided on an extension line of the presser portion side portion 34a so as to continue straight to the presser portion side portion 34a when the instrument body 12 is viewed from the side. The second portion 34b2 is a portion extending between the first portion 34b1 and the winding portion 32, in other words, a root side portion extending from the bending apex of the winding portion side portion 34b having a V shape to the winding portion 32. The length of the second portion 34b2 is longer than the thickness of the ceiling 1. In addition, you may form the winding part side site | part 34b so that it may become a smooth curve.

  Next, a procedure for installing the downlight 11 in the ceiling 1 will be described.

  First, from the state shown in FIG. 1, the pair of torsion springs 31 are manually rotated in the direction in which the arm part 34 and the holding part 35 are furthest away from the back surface of the flange 14, for example, the body case 13 of the instrument body 12. The state is maintained such that the presser portion 35 comes into contact with the outer surface. In this case, the arm portion 34 of the pair of torsion springs 31 is rotated upward about the winding receiver 22, while the spring end portion 33 is prevented from moving along with this rotation by the load bearing wall 23 b. Therefore, the arm portion 34 is rotated while the winding of the winding portion 32 is further strengthened, and the arm portion 34 and the pressing portion 35 are arranged along the outer surface of the instrument main body 12.

  A state in which the pair of torsion springs 31 are thus arranged is shown in a side view of FIG. In this state, the second portions 34b2 of the pair of torsion springs 31 are arranged so as to extend in the vertical direction and approach each other, so that the pair of torsion springs 31 rotate upward by grasping the second portions 34b2 with a finger. Can be maintained.

  Furthermore, the state which looked at this arrangement state from the plane is shown in FIG. As is apparent from FIG. 5, the arm portion 34 has an oblique pressing portion side portion 34 a, and the pressing portion side portion 34 a is arranged along the outer surface of the main body case 13. According to such an arrangement of the torsion spring 31, the pair of torsion springs 31 can be hardly caught in the instrument embedding hole 2 when the downlight 11 is inserted into the circular instrument embedding hole 2 in a plan view.

  In addition, the dashed-dotted line in FIG. 5 showed the case where the press part side site | part and the press part 35 were bent at right angle for the comparison. In this comparative example, the torsion spring 31 interferes with the instrument embedding hole 2 indicated by a two-dot chain line in FIG. Therefore, the downlight 11 cannot be embedded and installed unless the instrument embedding hole 2 is enlarged, and the diameter of the flange 14 must be increased.

  Next, the main body case 13 of the instrument main body 12 is inserted into the instrument embedding hole 2 while maintaining the state shown in FIG. In this case, since the torsion spring 31 is not easily caught on the edge of the instrument embedding hole 2 as described above, the insertion into the instrument embedding hole 2 can be performed smoothly and workability can be improved. Then, the finger is removed from the torsion springs 31 when the entire second portion 34 b 2 of the pair of torsion springs 31 reaches a depth at which the second part 34 b 2 enters the instrument embedding hole 2.

  Along with this, the arm portion 34 of the pair of torsion springs 31 is rotated downward by the spring force accumulated in the winding portion 32, so that the presser portions 35 of the torsion springs 31 of the instrument embedded holes 2 are rotated. It elastically contacts the back surface of the ceiling 1 at the periphery. Therefore, the entire instrument main body 12 is moved upward by the spring force of the pair of torsion springs 31, and the flange 14 comes into contact with the surface of the ceiling 1, and the flange 14 and the holding part 35 are connected to the peripheral part of the instrument embedding hole 2. To come across.

  Accordingly, the downlight 11 is embedded in the ceiling 1. This installation state is shown in FIGS. In this way, the downlight 11 is attached by the flange 14 of the instrument main body 12 and the presser portions 35 of the pair of torsion springs 31 so as to sandwich the ceiling 1 in the thickness direction thereof. The holding force is not affected by the variation in the size of the instrument embedding hole 2, and the embedded installation state of the downlight 11 can be stabilized.

  In this case, since the pair of torsion springs 31 are both supported on the outer side surface of the instrument main body 12, the pressing of the back surface of the ceiling 1 by the pressing portion 35 is stabilized. At the same time, the position where the pair of pressing portions 35 press the back surface of the ceiling 1 (the point of action of the force) is 180 ° apart with the main body case 13 of the instrument main body 12 in between, and the main body case 13 is in between. The pair of winding portion receivers 22 receives the reaction force of the torsion spring 31 at a position shifted by 90 ° with respect to the action point. Therefore, the embedded installation state of the downlight 11 can be further stabilized.

  Further, since the winding receiver 22 is provided by moving the instrument body 12 from the side toward the flange 14, the winding receiver 22 is provided close to the back surface (upper surface in FIG. 1) of the instrument body 12. Compared to the case, the length of the arm portion 34 extending between the winding portion 32 and the pressing portion 35 can be shortened. For this reason, the reduction of the pressing force to the back surface of the ceiling 1 by the pressing portion 35 caused by the bending of the arm portion 34 is suppressed. Therefore, the embedded installation state of the downlight 11 can be further stabilized in this respect.

  In order to remove the downlight 11 from the ceiling 1 in which the downlight 11 is embedded in order to maintain the built-in components of the instrument main body 12, first, the instrument main body 12 is lowered to some extent from the state shown in FIG. Pull out to.

  In this case, since the length of the second portion 34b2 extending from the bending apex of the winding portion side portion 34b of the arm portion 34 to the winding portion 32 is longer than the thickness of the ceiling 1, a pair of torsion springs is pulled along with the withdrawal of the instrument body 12. When the arm portion 34 comes to follow the back surface of the ceiling 1 by the rotation of the holding portion 35 with the holding portion 35 as shown in FIG. 6, the second portion 34b2 passes through the device embedding hole 2 and the ceiling 1 as shown in FIG. Is projected downward.

  Subsequently, the arm portions 34 of the pair of torsion springs 31 are gripped so as to approach each other in such a pulled-out state, so that the pressing portions 35 of these arm portions 34 are along the outer surface of the instrument main body 12. Finally, the downlight 11 can be removed from the ceiling by pulling out the instrument body 12 from the instrument embedding hole 2 in this state.

  Since the pair of torsion springs 31 are supported on both sides by the spring support means 21 on the outer side surface of the instrument body 12, the arm part 34 is moved so that the presser part 35 follows the outer side surface of the instrument body 12 in the above-described pulling operation. When the operation is performed, the second portions 34b2 of the arm portions 34 of the pair of torsion springs 31 extending from the spring support means 21 on one side can be gripped with fingers so as to approach each other. For this reason, since it is not forced to operate with one hand over the instrument main body 12 and the arm part 34, operativity can be improved.

  Further, the winding receiver 22 of the spring support means 21 is disposed at a distance exceeding the thickness of the ceiling 1 and separated from the back surface of the flange 14. For this reason, the arm portion 34 remains at the edge of the instrument embedding hole 2 until the instrument body 12 is pulled out so that the winding receiver 22 is positioned on the front side of the ceiling 1 beyond the same height position as the back surface of the ceiling 1. Do not touch. Thereby, it can suppress that the edge of the instrument embedding hole 2 is rubbed by the arm part 34 from the initial stage which pulls out the instrument main body 12, and the instrument embedding hole 2 is damaged.

  Not only that, but when the instrument main body 12 is viewed from the side, the winding portion side portion 34b of the arm portion 34 is bent into a V shape at a bending angle β, so that the presser portion 35 starts from the bending apex of the winding portion side portion 34b. The angle γ (see FIG. 2) formed by the flange portion 14 and the portion formed by the portion of the arm portion 34, that is, the portion formed by the first portion 34 b 1 and the pressing portion side portion 34 a continuous thereto, can be increased.

  Therefore, until the instrument body 12 is pulled out to the extent that the second portion 34b2 of the arm part 34 can be grasped by hand from the front side of the ceiling 1 as shown in FIG. Do not touch. Thereby, when pulling out the instrument main body 12, the edge of the instrument embedding hole 2 is rubbed by the arm portion 34, and the instrument embedding hole 2 can be prevented from being damaged. Thereafter, the pair of torsion springs 31 are gripped by hand as described above and are pulled out together with the instrument body 12 while maintaining the state shown in FIG. Therefore, when the downlight 11 is removed, it is possible to suppress the edge of the instrument embedding hole 2 from being rubbed by the torsion spring 31 and being damaged.

  8 and 9 show a second embodiment of the present invention that is suitable when the instrument body 12 is lightweight. Since the second embodiment is the same as the first embodiment except for the items described below, the same reference numerals as those in the first embodiment are used for the same functions as those in the first embodiment, and the description thereof is omitted. To do.

  In the second embodiment, one torsion spring 31 has one arm portion 34. Therefore, each torsion spring 31 is supported on the outer surface of the instrument body 12 in a cantilevered manner instead of being supported on both ends. In order to realize such cantilever support, the winding receiver 22 is formed of a large-diameter portion on the base side and a small-diameter portion on the distal end side, and the winding portion 32 is fitted to the small-diameter portion to Supported on the outside. Except for the matters described above, the second embodiment is the same as the first embodiment.

  Therefore, even in the second embodiment, the problem of the present invention can be solved for the reason already described in the first embodiment.

  In addition, this invention is not restrict | limited to the said each embodiment. For example, instead of projecting the winding receiver 22 on the main body case 13 of the instrument body, the winding receiver 22 may be implemented by projecting on the inner surface of the cover wall 23c of the spring end receiver 23 fixed to the main body case 13. it can. In addition, the present invention is not limited to implementation of downlights, but is embedded in lighting equipment, electrical equipment, etc. that are embedded in a ceiling or wall member that is obliquely or perpendicularly connected thereto, and other attached parts. It can be applied to mold tools.

The side view which shows the downlight which concerns on 1st Embodiment of this invention. The figure which shows the state by which the downlight of FIG. 1 was embedded and installed in the ceiling. The top view which shows the state by which the downlight of FIG. 1 was embedded and installed in the ceiling. The figure which shows the state at the time of attaching / detaching the downlight of FIG. 1 to a ceiling. The top view which shows the downlight of the state of FIG. The figure which shows the downlight of FIG. 1 in the state in the middle of pulling out from a ceiling. The perspective view which decomposes | disassembles and shows a part of downlight of FIG. The figure which shows the state by which the downlight which concerns on 2nd Embodiment of this invention was embedded and installed in the ceiling. The top view which shows the state by which the downlight of FIG. 8 was embedded and installed in the ceiling.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Downlight (implantable instrument), 12 ... Instrument main body, 14 ... Flange of instrument main body, 21 ... Spring support means, 22 ... Winding part receiver, 23 ... Spring end part receiver, 31 ... Torsion spring, 32 ... Winding part , 33 ... Spring end part, 34 ... Arm part, 34a ... Presser part side part of the arm part, 34b ... Winding part side part of the arm part, 34b2 ... Second part (root side part) of the winding part side part, 35 ... Presser part, α ... obtuse angle, β ... bending angle,

Claims (5)

In an implantable instrument which is inserted into an instrument embedding hole opened in a mounted member and embedded in the mounted member,
An instrument body having a flange in contact with the surface of the mounted member;
Spring support means provided so as to sandwich the instrument body from the outer surface and having a spring end receiver and a winding receiver;
A pair of torsion springs made of wire springs, a winding part supported by the winding part receiver, a spring end part extended from one end of the winding part and supported by the spring end part receiver, An arm portion extending from the other end, and a holding portion that is bent from the arm portion and elastically contacts the back surface of the mounted member so as to sandwich the peripheral portion of the instrument embedding hole between the flange portion and the flange portion. A pair of said torsion springs;
An implantable device characterized by comprising:   Each of the torsion springs has a pair of each of the winding portion, the spring end portion, and the arm portion, and the pair of arm portions are integrally continuous via the push portion, and each of the torsion springs is 2. The implantable device according to claim 1, wherein the device body is supported on both sides by the spring support means on an outer surface of the device body.   3. The embedded mold according to claim 1, wherein the presser portion side portion of the arm portion and the presser portion are formed so as to form an obtuse angle when viewed in plan view of the instrument main body. Instruments.   The winding portion side portion of the arm portion is bent so as to protrude in a direction away from the back surface of the flange when the instrument body is viewed from the side, and the winding portion is bent from the top of the winding portion to the winding portion. 4. The implantable device according to claim 1, wherein a length of a base portion to be reached is longer than a thickness of the attached member.   The winding portion receiver of the spring support means is provided close to the flange side of the instrument body as viewed from the side of the instrument body. The implantable device according to item.

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