JP4648231B2 - Hook ceiling adapter and lighting fixture - Google Patents

Description

  The present invention relates to a hook ceiling adapter and a lighting fixture for electrically and mechanically attaching a lighting fixture to a hook ceiling body disposed on a ceiling.

  2. Description of the Related Art Conventionally, a hook ceiling adapter for electrically and mechanically attaching a lighting fixture to a hook ceiling body disposed on a ceiling has been provided (see, for example, Patent Document 1).

  As shown in FIGS. 15 and 16, a conventional hook sealing adapter described in Patent Document 1 includes a container body 100 formed into a bottomed cylindrical shape whose bottom surface is opened by an insulating material (synthetic resin), and a container body. A cover 130 that closes the opening surface of 100, and a pair of hooking blades 103 that are screwed into a recess 111 provided on the outer bottom surface of the vessel body 100 and are detachably fitted to a hooking sealing body (not shown), 103 and a pair of hooking blades 103, 103, and a plug (not shown) that is exposed to the outside through the opening 133 provided in the center of the cover 130 and supplies power to the ballast of the luminaire is detachable. A connector part 109 to be connected and a latch provided in the lighting fixture in a state of protruding from the groove 114 provided on the peripheral surface of the container body 100 so as to be able to advance and retreat, and protruding from the peripheral surface of the container body 100. And a pair of coil springs 123 and 123 that elastically urge each locking member 107 to advance out of the body 100. And a moving means for moving the locking members 107 and 107 in a direction for retracting them into the body 100 against the elastic force of the coil springs 123 and 123. Here, the moving means is composed of operation pieces 108 and 108 which are formed integrally with the locking member 107 and project through the operation holes 132 and 132 of the cover 130, so that the pair of operation pieces 108 and 108 are simultaneously pushed outward. By operating to, the locking members 107 and 107 protruding from the grooves 114 and 114 can be retracted into the vessel body 100 and the lighting fixture can be removed.

The connector portion 109 is formed integrally with the hooking blades 103, 103, and a pair of contacts (not shown) inserted into the vessel body 100 from the bottom surface of the vessel body 100, and the bottom surface of the vessel body 100 so as to surround the contacts. When the cylindrical fitting body 109a erected from the side and the lock claw provided on the side of the fitting body 109a and having a plug are inserted, the lock claw is engaged and the plug is removed. And a retaining portion 109b to be secured. Here, the plug and the connector portion 109 are connected to the inside of the body 100 so that the locking members 107 and 107 are securely locked to the locked portion and the lighting apparatus is not fixed. The locking member 107 is provided with a restricting piece 110 that closes the insertion hole of the retaining portion 109b included in the connector portion 109 in the retracted state. That is, the locking claw of the plug cannot be inserted into the retaining portion 109b unless the locking members 107, 107 are advanced from the body 100 and securely locked to the locked portion of the lighting fixture. The plug cannot be connected to the connector portion 109.
Japanese Patent No. 3563900

  However, in the conventional example, when the plug is connected to the connector portion 109 and then the lighting fixture is attached, the locking members 107 and 107 are retracted into the body 100 when the lighting fixture is attached. At this time, the lock claw of the plug may be deformed by the restriction piece 110, and the lock claw may not function and the plug may not be normally connected.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hook ceiling adapter and a lighting fixture that can surely prevent the lighting fixture from being attached by an incorrect procedure.

  In order to achieve the above object, the invention of claim 1 comprises a container body formed in a bottomed cylindrical shape having one surface opened by an insulating material, a cover for closing the opening surface of the container body, and an outer bottom surface of the container body. A pair of hooking blades that protrude and detachably engage with the hooking sealing body, and a plug that is electrically connected to the pair of hooking blades and exposed to the outside through an opening provided in the cover to supply power to the ballast of the lighting fixture. A connector part that is detachably connected, and a locked part provided in the lighting fixture in a state of protruding from the window hole provided in the peripheral surface of the container and protruding from the peripheral surface of the instrument body, and freely detachable. A plurality of locking members that are locked to each other, a biasing means that elastically biases each locking member in a direction to advance to the outside of the container, and each locking member in the body against the elastic force of the biasing means And moving means to move in the direction of retraction, arranged on the ceiling A hook sealing adapter for electrically and mechanically attaching a lighting fixture to a hooked sealing body, wherein the plurality of locking members are opposed to each other along the moving direction in such a manner that the connector parts are sandwiched between the connector parts. The connector part is provided with a pair of contacts that are electrically connected to the pair of hooking blades and rise from the bottom surface of the body to the opening side, and the plug is an insulating composite. A plug body made of a resin molded product, a pair of contact receivers that are housed in the plug body and are in contact with the contacts of the connector part, and are opposed to the protrusions of the locking members while being connected to the connector part A plurality of stopper portions projecting from the side surface of the plug body, and the plurality of stopper portions are located on a straight line along the moving direction of the locking member. Plug is characterized by being obtained by restricting the movement of interfering with projection only in a state that is normally connected to the connector portion to the retracted direction of the locking member.

  According to a second aspect of the present invention, in the first aspect of the invention, the pair of contacts provided in the connector portion are arranged in a direction intersecting the moving direction of the locking member, and the plug is connected to the connector portion. Stoppers are respectively provided on the side surfaces of the plug main body facing the protrusions of the locking member and parallel to the direction in which the pair of contact receivers are arranged.

  In order to achieve the above-mentioned object, the invention of claim 3 comprises a container body formed in a bottomed cylindrical shape having one surface opened by an insulating material, a cover for closing the opening surface of the container body, and an outer bottom surface of the container body A pair of hooking blades that protrude and detachably engage with the hooking sealing body, and a plug that is electrically connected to the pair of hooking blades and exposed to the outside through an opening provided in the cover to supply power to the ballast of the lighting fixture. A connector part that is detachably connected, and a locked part provided in the lighting fixture in a state of protruding from the window hole provided in the peripheral surface of the container and protruding from the peripheral surface of the instrument body, and freely detachable. A plurality of locking members that are locked to each other, a biasing means that elastically biases each locking member in a direction to advance to the outside of the container, and each locking member in the body against the elastic force of the biasing means And moving means to move in the direction of retraction, arranged on the ceiling A hook sealing adapter for electrically and mechanically attaching a lighting fixture to a hooked sealing body, wherein the plurality of locking members face each other in the moving direction and have protrusions on the opposing surfaces. The connector portion is provided at a position that is electrically connected to the pair of hooking blades and has a pair of contacts that rise from the bottom surface of the container body to the opening surface side and does not face the protrusion of the locking member. A plug body made of a synthetic resin molded product having an insulating property, a pair of contact receivers that are housed in the plug body and are brought into contact with the contacts of the connector section, and projecting on the side surfaces of the plug body and connected to the connector section A stopper portion that faces the protrusion of each locking member in a state where the locking member is located, and the stopper portion is located on a straight line along the moving direction of the locking member and is plugged Characterized by comprising regulating the movement in the retraction direction of the locking member only interferes with projections in a state that is normally connected and the connector portion.

  According to a fourth aspect of the present invention, in the plug according to any one of the first to third aspects, the plug is provided with a lock claw on a side surface of the plug body on which the stopper portion is not projected, and the connector portion is a pair of contacts. A fitting body that is erected from the bottom surface of the container body so as to surround the plug body and a plurality of side surfaces that are not opposed to the locking member of the fitting body, and the locking claws of the plug are selectively engaged with each other. And a plurality of engaged portions.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the locking member is formed to a size that can pass through the window hole on the peripheral surface of the vessel body, and the moving means is made of a synthetic resin molded product. The movable member is composed of a plurality of moving members, and the movable member is engaged with an engagement protrusion projecting on the front surface of the locking member facing the cover in the moving direction of the locking member, and the cover The operation part protruding to the outside and the connecting piece for connecting the engaged piece and the operation part are integrally formed, and the engaged piece and the operation part are aligned in a straight line across the connector part. A connecting piece is arranged on the side of the connector portion, and the locking member is provided with means for guiding the movement of the moving member.

  According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the urging means includes a boss that has both ends locked to the spring locking portions of the locking members and is erected from the bottom of the container body to the cover side. It is composed of a torsion spring in which a cylindrical central part is extrapolated to the part, and the boss part is located in a position away from the connector part in the body, and a screw for coupling the body and the cover is screwed together To do.

  According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the positions of both ends of the torsion spring are regulated by the spring locking portion in the connecting direction of the container body and the cover perpendicular to the moving direction of the locking member. The central portion is restricted in position only on the bottom surface side of the container body, and the height of the restriction position from the bottom surface of the container body is substantially equal to the height of the restriction position of the spring locking portion.

  According to an eighth aspect of the present invention, in the fourth aspect of the present invention, the engaged piece of the moving member is formed so that a portion of the cylindrical body wall contacting the periphery of the window hole is substantially the same shape as the periphery of the window hole. It is characterized by being made.

  In order to achieve the above object, a hooked sealing adapter according to any one of claims 1 to 8 and a locked portion in which the locking member of the hooked ceiling adapter is detachably locked. And a ballast supplied with power through a plug.

  According to the first aspect of the present invention, the plug includes a plug main body made of a synthetic resin molded product having insulating properties, a pair of contact receivers housed in the plug main body and brought into contact with the contacts of the connector portion, and the connector portion. And a plurality of stoppers projecting on the side surfaces of the plug body facing the projections of the respective locking members in a state of being connected to each other. Since the locking member interferes with the protrusion and restricts movement of the locking member in the retracted direction only when the plug is normally connected to the connector portion, the locking member is illuminated. It is possible to reliably prevent the lighting fixture from being attached by the wrong procedure of connecting the plug to the connector portion before being locked to the locked portion of the fixture.

  According to the invention of claim 3, the plug is a plug body made of a synthetic resin molded product having an insulating property, and a pair of contact receivers that are housed in the plug body and are in contact with the contacts of the connector portion, respectively. A stopper portion that protrudes from the side surface of the plug body and is connected to the connector portion, and that faces the protruding portion of each locking member, and the stopper portion is linear on the moving direction of the locking member Only when the plug is normally connected to the connector portion and interferes with the protrusion to restrict the movement of the locking member in the retracted direction. It is possible to reliably prevent the luminaire from being attached by the wrong procedure of connecting the plug to the connector portion before locking to the locking portion, and compared to the invention of claim 1, Increase travel distance From, it is possible to reliably hold the luminaire dimensions that the engaged portion and the locking of the luminaire projects from the window holes is increased.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to FIGS.

  As shown in FIGS. 1 and 2, the hook sealing adapter of the present embodiment includes a container body 1 formed in a bottomed cylindrical shape with one surface opened by an insulating synthetic resin material, and an opening surface of the container body 1. A cover 2 that closes (the lower surface in FIG. 2), a pair of hooking blades 3 and 3 that protrude from the outer bottom surface of the container 1 and are detachably fitted to a hooking sealing body (not shown), and the pair of hooking blades 3 and 3, a connector portion 4 to which a plug 8 for exposing to the outside through an opening 20 provided in the center of the cover 2 and supplying power to the ballast of the lighting fixture is removably connected; A locked portion 211 provided on a lighting fixture (actually a holder 210 attached to the fixture body) in a state of protruding from the window holes 12 and 12 provided on the peripheral surface so as to be movable forward and backward and protruding from the peripheral surface of the vessel body 1; Engage and disengage A pair of locking members 5, 5, an urging means for elastically urging each locking member 5 in a direction to advance out of the body 1, and each locking member 5 against the elastic force of the urging means And a moving means for moving 5 in the direction in which it is retracted into the vessel 1.

  The container 1 is made of a synthetic resin molded product in which a disc-shaped bottom plate 10 and a cylindrical peripheral wall 11 rising from the periphery of the bottom plate 10 are integrally formed. A pair of window holes 12, 12 having a substantially rectangular shape in plan view are opened at a portion of the peripheral wall 11 that is opposed to the center of the bottom plate 10, and only the height of the portion from the bottom plate 10 is high. In addition, guide pieces 13 and 13 that project inward so as to be parallel to each other and guide the locking members 5 and 5 from both side surfaces of the window holes 12 and 12 along the circumferential direction of the bottom plate 10 in the peripheral wall 11 are respectively provided. (See FIG. 4).

  Further, a square tube-shaped fitting body 40 is erected at the center of the bottom plate 10, and a pair of contacts 41, 41 are housed inside the fitting body 40 to constitute the connector portion 4. The contacts 41 and 41 are narrow rectangular plates, and are formed integrally with the hooking blades 3 and 3 via the rectangular plate-like fixing pieces 42 and 42, respectively (hereinafter, the hooking blade 3 and the fixing piece 42). The member in which the contact 41 is integrally formed is called a terminal board.) A screw insertion hole 42 a is provided through the fixed pieces 42, 42, and the fixed pieces 42, 42 are fixed to the bottom plate 10 of the container 1 by fixing screws 43, 43 made of tapping screws. The bottom plate 10 is provided with a pair of holes 10a, 10a at point-symmetric positions with the fitting body 40 in between, and the hooking blades 3, 3 project outside the bottom plate 10 through these holes 10a, 10a (FIG. 1). reference). The contacts 41, 41 are introduced into the fitting body 40 through a pair of longitudinal grooves 40 a, 40 a provided on the side surface of the fitting body 40, and rise substantially perpendicular to the bottom plate 10 inside the fitting body 40. (See FIG. 3).

  In addition, a pair of the end portions of the bottom plate 10 are opposed to each other with the fitting body 40 interposed therebetween in a direction (vertical direction in FIG. 4) orthogonal to the facing direction of the window holes 12 and 12 (horizontal direction in FIG. 4). Boss portions 14 are erected. The boss portion 14 has a substantially cylindrical shape, and a vertical hole 14a is formed in the center in the axial direction. That is, by attaching the mounting screws 14b and 14b made of tapping screws to the screw insertion holes 21 and 21 provided in the cover 2, and inserting them into the vertical holes 14a and 14a of the boss portions 14 and 14, the cover 2 and the body 1 are inserted. Are combined.

  The locking member 5 is a synthetic resin molding in which a main body portion 50 formed to have a size capable of passing through the window hole 12 and a protrusion 51 protruding from a surface of the main body portion 50 facing the fitting body 40 are integrally formed. It consists of goods. The main body 50 is formed in an arc shape in which the surface (front end surface) facing the window hole 12 has a curvature radius substantially equal to the curvature radius of the peripheral wall 11, and a portion on the cover 2 side (the lower half in FIG. 2). A part) is provided with a locking claw 50a protruding in the radial direction. The main body 50 has a narrow groove 50b in the radial direction at the center in the circumferential direction on the bottom plate 10 side surface (upper surface in FIG. 1) (see FIG. 1). On the other hand, guide ribs 15, 15 that fit into the groove 50 b are provided on the bottom plate 10 of the container body 1 so as to project symmetrically across the fitting body 40, and the guide rib 15 is engaged with the groove 50 b in a locked state. The member 5 is accommodated in the container 1 so as to be movable along the longitudinal direction of the groove 50b. Here, since the guide rib 15 is formed in a substantially triangular shape inclined toward the center of the bottom plate 10 and away from the bottom plate 10, when the locking member 5 is inserted into the window hole 12 from the outside of the peripheral wall 11, the protrusion 51 passes over the guide rib 15 along the slope, and the guide rib 15 is fitted into the groove 50b. Here, as will be described later, when the engaged piece 70 of the moving member 7 comes into contact with the inner peripheral surface of the peripheral wall 11, the movement of the locking member 5 in the direction in which it advances from the window hole 12 to the outside of the container body 1 is restricted. 3 (see FIG. 3), the protrusion 51 abuts against the side surface of the fitting body 40 on the side of the longitudinal groove 40a, thereby restricting the movement of the locking member 5 in the direction of retreating from the window hole 12 into the container body 1. Is done. As a result, the locking member 5 is movable between a position where the locking claw 50a protrudes outward from the peripheral wall 11 and a position where the locking claw 50a does not protrude outward from the peripheral wall 11.

  As shown in FIG. 4 (a), the urging means has both ends locked to the spring locking portions 53, 53 of the locking members 5, 5, respectively, and the boss portion 14 of the container 1 has a cylindrical shape. The central part 60 of the shape consists of a torsion spring 6 which is extrapolated. More specifically, the locking member 5 has a recess 52 formed between the main body 50 and the protrusion 51 and a protruding spring locking portion 53 protruding from the side surface of the recess 52 on the main body 50 side. It is installed. That is, the tip ends of the spring pieces 61 and 61 of the torsion spring 6 are locked to the spring locking portion 53 between the bottoms of the recesses 52 and locked by the elastic force of the spring pieces 61 and 61 trying to open outward. The members 5 and 5 are elastically biased so as to advance from the window holes 12 and 12. Here, as shown in FIGS. 4 and 5, a pair of restriction ribs 16, 16 rising from the bottom plate 10 protrude from the base of the one boss part 14, and a central portion is formed by the pair of restriction ribs 16, 16. The position of 60 is restricted only in the direction of extrapolation to the boss portion 14 (upward in FIG. 5) on the bottom plate 10 side of the body 1. Further, the height of the restriction position of the central portion 60 from the bottom surface (bottom plate 10) of the container 1 is substantially equal to the height of the restriction positions of the spring locking portions 53 and 53 (see FIG. 5).

  Thus, when the locking members 5 and 5 move in the retracting direction, the spring pieces 61 and 61 of the torsion spring 6 are bent, so that the central portion 60 tries to move in the axial direction of the boss portion 14. Since the position is regulated by the regulating ribs 16 and 16 on the 10 side, the central portion 60 is slightly moved toward the tip of the boss portion 14 (downward in FIG. 5), and the reduced diameter central portion 60 is formed on the outer peripheral surface of the boss portion 14. It is positioned in contact with and balanced. At this time, since the spring pieces 61 and 61 also move in the direction away from the bottom plate 10 together with the central portion 60, the frictional force acting between the locking members 5, 5 and the bottom plate 10 is reduced, and the locking members 5, 5 Can be moved smoothly. Since the mounting screw 14b is screwed to the boss portion 14 into which the central portion 60 of the torsion spring 6 is inserted, there is no possibility that the boss portion 14 is deformed when the central portion 60 is reduced in diameter.

  Next, the moving members 7, 7 as moving means for moving the locking members 5, 5 in the retracting direction against the elastic force of the torsion spring 6 will be described.

  The moving member 7 is made of a synthetic resin molded product, and the moving direction of the locking member 5 with respect to the engaging protrusion 54 protruding from the front surface (lower surface in FIG. 2) of the locking member 5 facing the cover 2 (see FIG. 1 and the engagement piece 70 engaging in the left and right direction), the operation portion 71 projecting outside through the cover 2, and the connection piece 72 connecting the engagement piece 70 and the operation portion 71 are integrated into a plane. It is formed in a substantially C shape. The engaged piece 70 is provided with an engagement recess 73 having a substantially semicircular shape in plan view on the inner surface facing the operation portion 71. The operation unit 71 has a rectangular flat plate shape and protrudes so as to rise to the cover 2 side (downward in FIG. 1) with respect to the connecting piece 72. As shown in FIG. 1, the operating portion 71 is provided with a fitting groove 71 a that fits with a protruding portion 51 a protruding from the front surface of the protruding portion 51 of the locking member 5 (the lower surface in FIG. 2). ing.

  On the other hand, in the main body portion 50 of the locking member 5, a fitting recess 50c having substantially the same shape as the outer shape of the engaged piece 70 is formed on the surface on the cover 2 side (lower surface in FIG. 1). An engagement protrusion 54 that engages with the engagement recess 73 of the mating piece 70 is projected from the bottom end of the engagement recess 50c.

  Thus, as shown in FIG. 4 (b), the moving member 7 has the engagement recess 73 formed by fitting the engaged piece 70 into the engagement recess 50 c of the main body 50 in one of the locking members 5. While engaging with the engaging protrusion 54 of the main body 50, the fitting groove 71 a of the operating portion 71 is engaged with the protrusion 51 a of the protrusion 51 of the other locking member 5. It is stored in. Here, the two moving members 7 and 7 have the same shape and the same size, but the respective connecting pieces 72 and 72 are distributed and arranged in the space between the fitting body 40 and the two boss portions 14 and 14. So that they do not interfere with each other. The operation portions 71 and 71 are exposed to the outside of the container body 1 through a pair of operation holes 22 and 22 penetrating the cover 2 so as to communicate with the opening 20 on both sides of the opening 20 (FIG. 7). reference). Therefore, if the operation parts 71 and 71 are pushed outward by hand, the moving members 7 and 7 are translated along the bottom plate 10 of the container 1 and engaged with the engaged pieces 70 and 70. The stop members 5 and 5 can be moved in the retracting direction against the elastic force of the torsion spring 6.

  The plug 8 is attached to the tip of a two-core power supply line 200 connected to a ballast (not shown) of a lighting fixture, and includes a plug main body 80 made of a synthetic resin molded product having insulation properties, and a plug main body. A pair of contact receivers 81, 81 housed in 80 and in contact with the contacts 41, 41 of the connector part 4, respectively, and the protrusions 51 of the locking members 5, 5 connected to the connector part 4; 51 is provided with a pair of stopper portions 82, 82 projecting from the side surface of the plug main body 80 facing the main body 51 (see FIGS. 1 and 7). The plug main body 80 has a dimension that can be inserted into the fitting body 40 and is formed in a flat rectangular box shape, and the inside is divided into two by a partition wall 80b. Then, contact receptacles 81 and 81 formed by bending a metal plate into a cylindrical shape are accommodated in the paired storage chambers 80a and 80a, respectively. The contact receivers 81 and 81 are electrically connected by connecting the conductors 200a and 200a of the power supply line 200 to one end side, and the contacts 41 and 41 being inserted and removed to the other end side (see FIG. 1). The stopper portions 82, 82 are rectangular plate shapes narrower than the longitudinal grooves 40 a, 40 a of the fitting body 40, and the protrusions 51, 51 of the locking members 5, 5 are connected to the connector portion 4. Projecting is provided on both side surfaces of the plug body 80 facing each other. Further, a lock portion 83 is provided on a side surface of the plug body 80 where the stopper portions 82 and 82 are not projected. As shown in FIGS. 6 and 7, the lock portion 83 includes a pair of support pieces 83a and 83a connected to the plug body 80 on one end side, and a rocking portion on the other end side of the pair of support pieces 83a and 83a. A rod-like lock piece 83b that is movably supported and a lock claw 83c that protrudes from the tip of the lock piece 83b toward the plug main body 80 are formed integrally with the plug main body 80. On the other hand, in the fitting body 40 of the connector portion 4, engaged portions 40 b and 40 b to which the lock claws 83 c of the plug 8 are selectively engaged are protruded on the side surfaces not facing the locking members 5 and 5. Yes. Further, in the cover 2, escape holes 23, 23 for escaping the lock portion 83 of the plug 8 are provided so as to communicate with the opening 20 so as to sandwich the opening 20. Note that the lock claw 83c and the engaged portions 40b and 40b are formed with inclined surfaces so that the protruding amount gradually increases from the front end toward the rear end.

  Thus, when the plug main body 80 is inserted into the fitting body 40 to a proper position, the contacts 41 and 41 of the connector portion 4 are brought into contact with the contact receivers 81 and 81 of the plug 8, respectively, and the connector portion 4 and the plug 8 are connected. In addition, in the process of inserting the plug body 80 into the fitting body 40, the lock claw 83c abuts on the engaged portion 40b and is guided by the inclined surfaces to bend the lock piece 83b. 83c gets over the engaged portion 40b, the lock claw 83c and the engaged portion 40b are engaged and locked, and the plug 8 is prevented from coming off from the connector portion 4 (see FIG. 6). If the lock piece 83b is swung by pushing the rear end portion of the lock piece 83b with a finger, the engagement between the lock claw 83c and the engaged portion 40b is released and the lock is released. 40 can be pulled out. Here, the stopper portions 82 and 82 of the plug 8 connected to the connector portion 4 are opposed to the protrusion portions 51 and 51 of the locking members 5 and 5 with a slight gap, respectively. In a state where the protrusions 51 and 51 are connected, the protrusions 51 and 51 interfere with the stopper portions 82 and 82, so that the movement of the locking members 5 and 5 in the retreat direction is restricted. In the present embodiment, the plug body 80 is formed in a rotationally symmetric shape and the engaged portions 40b, 40b are provided on both side surfaces of the fitting body 40 of the connector portion 4, so that the plug 8 for the connector portion 4 is provided. There is an advantage that usability is improved because the connection direction is not limited. Also, as shown in FIG. 9, if an inclined surface 80 c that is inclined in the anti-insertion direction (downward in FIG. 9) from the center to the outer side is formed at the tip of the plug body 80, Has the advantage of easier insertion.

  By the way, the hook ceiling adapter of this embodiment is provided with the lock mechanism with respect to a hook ceiling body similarly to a prior art example. This locking mechanism has a movable body 90 having a locking claw 90a at its tip which protrudes forward and backward from an insertion hole (not shown) penetrating the bottom plate 10, and elastically biases the movable body 90 in the direction in which the locking claw 90a protrudes. And a lock release button 92 that moves the movable body 90 in a direction in which the lock claw 90a is retracted into the insertion hole against the elastic force of the coil spring 91. The operation part 92a of the unlocking button 92 is exposed through a notch groove 11a provided in the peripheral wall 11 of the container 1, and the movable body 90 moves by operating the operation part 92a to be pushed into the peripheral wall 11. The lock claw 90a is retracted into the insertion hole, and the locked state with the hooking sealing body is released. Since this lock mechanism is well known in the art, a detailed description thereof will be omitted.

  The hook sealing adapter of the present embodiment configured as described above is assembled in the following procedure.

  First, a pair of terminal plates are screwed to the bottom plate 10 of the container body 1 with fixing screws 43, 43, and then the locking members 5, 5 are inserted into the container body 1 through the window holes 12, 12 of the peripheral wall 11, and the main body. The guide ribs 15 and 15 of the bottom plate 10 are fitted into the grooves 50b of the portions 50 and 50, respectively. Subsequently, after the center portion 60 is extrapolated to the boss portion 14, the tip ends of the spring pieces 61, 61 are locked to the spring locking portions 53, 53 of the locking members 5, 5, and the torsion spring 6 is attached to the body 1. Store inside. Furthermore, the engagement recess 73 is engaged with the engagement protrusion 54 of the main body 50 by fitting the engaged piece 70 into the engagement recess 50 c of the main body 50 of the one locking member 5, and the other The moving members 7 and 7 are accommodated in the container 1 so that the fitting groove 71a of the operating portion 71 is fitted to the protruding portion 51a of the protruding portion 51 of the locking member 5. Then, after the lock mechanism composed of the movable body 90, the coil spring 91 and the unlock button 92 is housed in the body 1, the mounting screws 14 b and 14 b inserted into the screw insertion holes 21 and 21 of the cover 2 are attached to the body 1. If the cover 2 is coupled to the body 1 by screwing into the vertical holes 14a, 14a of the boss portions 14, 14, the hook sealing adapter of this embodiment is completed.

  As described above, in this embodiment, since all the parts can be assembled to the container 1 from one direction, the assembly is improved as compared with the conventional example in which the hooking blade is screwed to the outer bottom surface of the container. There is an advantage of doing. In addition, since the pair of locking members 5 and 5 and the moving members 7 and 7 may be the same parts, the cost can be reduced and the assemblability can be improved by reducing the number of parts.

  As for the lighting fixture provided with the hook ceiling adapter of this embodiment, the holder 210 is attached to the fixture main body (not shown) as shown in FIG. The holder 210 is made of a synthetic resin molded product having an oval shape in plan view, and a hooking sealing adapter is attached to a circular attachment hole 211 opened in the center. An annular rib 212 projects from the periphery of the mounting hole 211 on the upper surface of the holder 210. The inner diameter of the rib 212 is slightly larger than the outer shape of the vessel body 1, and an inclined surface 212 a that is inclined inward in FIG. An annular locked portion 213 that locks the locking claws 50a and 50a of the locking members 5 and 5 is provided on the periphery of the mounting hole 211 on the lower surface of the holder 210.

  Thus, after attaching the hook ceiling adapter to the ceiling hook ceiling body, if the instrument body is pushed up to insert the hook sealing adapter body 1 into the mounting hole 211 of the holder 210, the tip of the rib 212 is inclined. The locking claws 50a, 50a come into contact with the surface and the locking members 5, 5 move in the retracting direction, and the locking claws 50a, 50a that have crossed over the rib 212 eventually lock onto the locked portion 213 to catch the ceiling. The instrument body is fixed to the adapter. Then, if the plug 8 is connected to the connector part 4 of the hook ceiling adapter, the mechanical and electrical attachment of the lighting fixture to the hook ceiling adapter is completed. At this time, the plug body 80 and stopper portions 82 and 82 of the plug 8 connected to the connector portion 4 and the pair of locking members 5 and 5 are aligned in a straight line, and are restricted by the stopper portions 82 and 82. As a result, the locking members 5 and 5 cannot move in the retracted direction (see FIG. 1). Further, in the incomplete mounting state in which only the locking claw 50a of the locking member 5 on one side is locked to the locked portion 213 of the holder 210 because the instrument body is not pushed up horizontally, FIG. Since the stopper portion 82 interferes with the protruding portion 51 of the locking member 5 that is not locked to the locked portion 213 and the plug 8 cannot be connected to the connector portion 4, power is not supplied to the ballast. The user can easily recognize that the lighting fixture is not correctly attached by not lighting up. Furthermore, even when the plug 8 is forcibly connected to the connector portion 4 in the incomplete mounting state as described above, the holder 210 (the instrument body) is greatly inclined and cannot be leveled as shown in FIG. 8B. Therefore, the user can easily recognize that the lighting fixture is not correctly attached.

  Here, when the locking members 5 and 5 are forcibly moved in the retracted direction while the plug 8 is connected to the connector portion 4, the movement is restricted by the lock piece of the plug in the conventional example. However, in this embodiment, the plug body 80 and the pair of stopper portions 82 and 82 restrict the movement of the locking members 5 and 5, so that the plug 8 is plastically deformed and used. The possibility of being impossible is substantially eliminated, and it is possible to reliably prevent the lighting fixture from being attached to the hooking ceiling adapter in the wrong procedure.

  Further, the two moving members 7 and 7 are configured such that the connecting piece 72 is arranged on the side of the connector part 4 so that the engaged piece 70 and the operation part 71 are arranged in a straight line across the connector part 4. Moreover, since the protrusions 51a provided on the protrusions 51, 51 of the locking members 5, 5 are fitted in the fitting grooves 71a of the operation parts 71, 71, the operation parts 71, 71 are operated. It is possible to move smoothly.

  By the way, although the engaged piece 70 of the moving member 7 is in contact with the inner peripheral surface of the peripheral wall 11, the movement of the locking members 5, 5 in the direction of advancing out of the body 1 from the window hole 12 is restricted. In this embodiment, the shape of the tip portion of the engaged piece 70 that contacts the inner peripheral surface of the peripheral wall 11 is substantially the same shape as the peripheral wall 11, that is, an arc having substantially the same radius of curvature as the inner peripheral surface of the peripheral wall 11. It has a shape. That is, the cylindrical molded product may be deformed into an elliptical shape. Even if the container 1 is deformed into an elliptical shape, the restriction position by the engaged piece 70 is difficult to shift, and the locking member 5 There is an advantage that locking between the locking claw 50a and the locked portion 213 of the holder 210 is stable.

(Embodiment 2)
Since the basic configuration of the hook ceiling adapter of the present embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals, and illustration and description thereof are omitted as appropriate.

  In the first embodiment, the pair of contacts 41, 41 of the connector portion 4 are arranged in parallel with the moving direction of the locking members 5, 5, and the fitting body 40 is erected at the center of the bottom plate 10 of the container body 1. The longitudinal direction coincides with the moving direction of the locking members 5, 5, and a pair of stopper portions 82, 82 project from both side surfaces along the longitudinal direction of the plug body 80. On the other hand, in this embodiment, as shown in FIGS. 10 and 11, the pair of contacts 41, 41 of the connector portion 4 are arranged in a direction intersecting (orthogonal) with the moving direction of the locking members 5, 5. The longitudinal direction of the fitting body 40 erected at the center of the bottom plate 10 of the vessel body 1 also intersects (orthogonal) the moving direction of the locking members 5, 5, and a pair of stopper portions 82, 82 further includes a plug body 80. It is characterized in that it protrudes from both sides along the short direction.

  That is, in the state where the plug 8 is not connected to the connector part 4, the movement of the locking members 5 and 5 is restricted at the position where the protrusions 51 and 51 come into contact with the side surface of the fitting body 40 (see FIG. 11C). Since the width dimension of the fitting body 40 along the moving direction of the locking members 5 and 5 is shorter than that of the first embodiment, the amount of movement of the locking members 5 and 5 can be increased. If the amount of movement of the locking members 5 and 5 increases, the amount of protrusion of the locking claw 50a that protrudes outward from the peripheral wall 11 of the container 1 through the window hole 12 also increases. It is possible to increase the engaging margin between the stopper 213 and the locking claw 50a and improve the mounting strength of the lighting fixture. On the other hand, in the state where the plug 8 is connected to the connector portion 4, the plug body 80 and the stopper portions 82, 82 of the plug 8 and the pair of locking members 5, 5 are aligned in a straight line and are restricted by the stopper portions 82, 82. As a result, the locking members 5 and 5 cannot move in the retracted direction (see FIG. 10 and FIG. 11A).

  In the present embodiment, the locking portions 83 and 83 are provided on both side surfaces along the longitudinal direction of the plug body 80, respectively, and the engaged portions projecting on both side surfaces along the short direction of the fitting body 40. Although the plug 8 is locked to the connector part 4 by engaging with 40b and 40b separately, it is not always necessary to provide the two lock parts 83, and only one of them may be provided.

(Embodiment 3)
Since the basic configuration of the hook ceiling adapter of the present embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals, and illustration and description thereof are omitted as appropriate.

  In the first embodiment, the plug body 80 and stopper portions 82 and 82 of the plug 8 connected to the connector portion 4 and the pair of locking members 5 and 5 are arranged at the center of the bottom plate 10 of the container body 1 so as to be aligned in a straight line. By disposing the connector portion 4 and connecting the protrusions 51 and 51 of the locking members 5 and 5 to the side surfaces of the fitting body 40 without connecting the plug 8 to the connector portion 4, the locking members 5 and 5. Is restricted from moving. On the other hand, in the present embodiment, as shown in FIGS. 12 to 14, the plug body 80 of the plug 8 connected to the connector portion 4 and the pair of locking members 5, 5 are arranged so as not to line up in a straight line. The connector portion 4 is disposed at a position shifted from the center of the bottom plate 10 of the body 1, and a stopper portion 82 is projected on the side surface of the plug body 80 of the plug 8 opposite to the lock portion 83. is there.

  The stopper portion 82 is integrally formed so as to protrude from the side surface of the plug body 80 made of a synthetic resin molded product, and has a significantly higher strength (load resistance) than the lock portion 83. In addition, the fitting body 40 of the connector portion 4 is provided with an insertion groove 40 c through which the stopper portion 82 of the plug 8 is inserted on the side surface on the central side of the container body 1.

  Thus, in a state where the plug 8 is not connected to the connector portion 4, the protrusions 51, 51 do not contact the fitting body 40 as shown in FIGS. 13 (c) and 14 (c). Since the locking members 5 and 5 can be moved immediately before they come into contact with each other, the amount of movement of the locking members 5 and 5 can be increased as compared with the first embodiment. If the amount of movement of the locking members 5 and 5 increases, the amount of protrusion of the locking claw 50a that protrudes outward from the peripheral wall 11 of the container 1 through the window hole 12 also increases. It is possible to increase the engaging margin between the stopper 213 and the locking claw 50a and improve the mounting strength of the lighting fixture. On the other hand, in a state where the plug 8 is connected to the connector portion 4, the stopper portion 82 provided on the plug body 80 of the plug 8 and the pair of locking members 5, 5 are aligned in a straight line and are restricted by the stopper portion 82. As a result, the locking members 5 and 5 cannot move in the retracted direction (see FIGS. 12 and 14A). Further, in this embodiment, the plug 8 is connected to the connector portion 4 by engaging the lock portion 83 provided on the side surface of the plug body 80 with the engaged portion 40 b protruding from the outer side surface of the fitting body 40. To be locked.

  Note that the hook ceiling adapters of Embodiments 1 to 3 can be combined with a lighting fixture (a lighting fixture of a type attached to a hook ceiling body provided on the ceiling) including the holder 210.

It is sectional drawing of the state which showed Embodiment 1 of this invention and attached the hook ceiling adapter to the lighting fixture (holder). It is a disassembled perspective view of the hook ceiling adapter same as the above. It is sectional drawing which abbreviate | omitted one part of the hook ceiling adapter same as the above. The hook ceiling adapter in the same as above is shown, (a) is a perspective view of the state where the cover and the moving member are removed, and (b) is a perspective view of the state where the cover is removed. It is sectional drawing of the hook sealing adapter same as the above. (A) (b) is sectional drawing of the state which connected the plug to the hook ceiling adapter in the same as the above. It is a perspective view of the state which connected the plug to the hook ceiling adapter same as the above. (A) (b) is sectional drawing of the state in which the hook ceiling adapter in the same as the above was incompletely attached to the lighting fixture (holder). It is a top view of the plug same as the above. It is the perspective view which abbreviate | omitted a part of state which showed Embodiment 2 of this invention and connected the plug to the hooking ceiling adapter. The hook sealing adapter which a part was abbreviate | omitted in the same as the above is shown, (a) is a front view of the state which connected the plug, (b) is sectional drawing of the state which connected the plug, (c) is the front of the state where the moving member moved FIG. It is the perspective view which abbreviate | omitted partially the state which showed Embodiment 3 of this invention and connected the plug to the hooking ceiling adapter. The hook sealing adapter which a part is abbreviate | omitted in the same as the above is shown, (a) is a perspective view of the state which the moving member moved, (b) is a perspective view of the state which the moving member has not moved. The hook sealing adapter which a part was abbreviate | omitted in the same as the above is shown, (a) is a front view of the state which connected the plug, (b) is sectional drawing of the state which connected the plug, (c) is the front of the state where the moving member moved FIG. It is a disassembled perspective view which shows the conventional hook ceiling adapter. The same as the above, (a) is a perspective view seen from above, and (b) is a perspective view seen from below.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 2 Cover 3 Hook blade 4 Connector part 5 Locking member 6 Torsion spring 7 Moving member 8 Plug 51 Protrusion part 80 Plug body 82 Stopper part 210 Lighting fixture (holder)

Claims (9)

A body formed in a bottomed cylindrical shape with one surface opened by an insulating material, a cover for closing the opening surface of the body, and a pair of hooks protruding from the outer bottom surface of the body and detachably fitted to the hooking sealing body A blade, a connector portion that is electrically connected to the pair of hooking blades, is exposed to the outside through an opening provided in the cover, and is electrically connected to the ballast of the lighting fixture; A plurality of locking members that detachably engage with a locked portion provided in the lighting fixture in a state of protruding from the provided window hole so as to be able to advance and retreat and protruding from the peripheral surface of the fixture body, and each locking member And a moving means for moving each locking member in a direction to retract the locking member against the elastic force of the urging means. Connect the lighting fixtures to the hooked ceiling body. Manner and a ceiling-mounted hooking receptacle adapter for mechanically attaching,
The plurality of locking members are opposed to each other along the moving direction with the connector portion sandwiched therebetween, and a protrusion is provided on the facing surface of the connector portion,
The connector part includes a pair of contacts that are electrically connected to the pair of hooking blades and rise from the bottom of the body to the opening surface side,
The plug includes a plug body made of a synthetic resin molded product having an insulating property, a pair of contact receivers that are housed in the plug body and are in contact with the contacts of the connector section, and are connected to the connector section. Comprising a plurality of stopper portions projecting on the side surface of the plug body facing the projecting portion of the stopper member;
The plurality of stopper portions are positioned on a straight line along the moving direction of the locking member and interfere with the protrusion only when the plug is normally connected to the connector portion, so that the locking member is retracted. Hook ceiling adapter characterized by restricting movement to The pair of contacts included in the connector portion are arranged in a direction crossing the moving direction of the locking member,
The plug is characterized in that a stopper portion protrudes from the side surface of the plug body facing the protrusion portion of each locking member while being connected to the connector portion and parallel to the direction in which the pair of contact receivers are arranged. The hook sealing adapter according to claim 1. A body formed in a bottomed cylindrical shape with one surface opened by an insulating material, a cover for closing the opening surface of the body, and a pair of hooks protruding from the outer bottom surface of the body and detachably fitted to the hooking sealing body A blade, a connector portion that is electrically connected to the pair of hooking blades, is exposed to the outside through an opening provided in the cover, and is electrically connected to the ballast of the lighting fixture; A plurality of locking members that detachably engage with a locked portion provided in the lighting fixture in a state of protruding from the provided window hole so as to be able to advance and retreat and protruding from the peripheral surface of the fixture body, and each locking member And a moving means for moving each locking member in a direction to retract the locking member against the elastic force of the urging means. Connect the lighting fixtures to the hooked ceiling body. Manner and a ceiling-mounted hooking receptacle adapter for mechanically attaching,
The plurality of locking members are opposed to each other along the moving direction, and protrusions are provided on the opposing surfaces.
The connector portion is provided at a position that is electrically connected to the pair of hooking blades and that does not face the protrusion of the locking member, and includes a pair of contacts that rise from the bottom surface of the container body to the opening surface side.
The plug includes a plug body made of a synthetic resin molded product having an insulating property, a pair of contact receivers housed in the plug body and in contact with the contacts of the connector section, and a connector section projecting from the side surface of the plug body. Comprising a stopper portion facing the protrusion of each locking member in a connected state,
The stopper portion is located on a straight line along the moving direction of the locking member and interferes with the protrusion only when the plug is normally connected to the connector portion, so that the locking member moves in the retracting direction. Hook ceiling adapter characterized by restricting movement. The plug has a locking claw on the side of the plug body where the stopper is not protruding,
The connector portion is provided on a plurality of side surfaces that are erected from the bottom surface of the container body so as to surround the pair of contacts and are fitted to the plug body, and provided on a plurality of side surfaces that do not face the locking members of the fitting body. The hook sealing adapter according to any one of claims 1 to 3, further comprising a plurality of engaged portions that are alternatively engaged. The locking member is formed in a dimension that can pass through the window hole on the peripheral surface of the body,
The moving means is composed of a plurality of moving members made of a synthetic resin molded product, and the moving members are moved in the moving direction of the locking member with respect to the engaging protrusion protruding from the front surface of the locking member facing the cover. An engaged piece to be engaged, an operation portion protruding to the outside through the cover, and a connecting piece for connecting the engaged piece and the operation portion are integrally formed, and the engaged piece is sandwiched between the connector portions. 2. The connecting piece is disposed on the side of the connector portion so that the operation portion is aligned with the operation portion, and the locking member is provided with means for guiding the movement of the moving member. The hook sealing adapter in any one of -4. The biasing means includes a torsion spring in which both ends are locked to the spring locking portions of the locking members, and a cylindrical central portion is extrapolated to a boss portion erected from the bottom of the container body to the cover side. Become
6. The hook sealing adapter according to claim 5, wherein the boss portion is located at a position away from the connector portion in the body, and a screw for connecting the body and the cover is screwed together.   Both end portions of the torsion spring are regulated by the spring latching portion in the connecting direction of the container body and the cover perpendicular to the moving direction of the latching member, and the central portion of the torsion spring is regulated only on the bottom side of the container body. The hook ceiling adapter according to claim 6, wherein the height of the restriction position from the bottom surface of the container body is substantially equal to the height of the restriction position of the spring locking portion.   5. The hook according to claim 4, wherein the engaged piece of the moving member is formed such that a portion of the cylindrical body wall contacting the periphery of the window hole is substantially the same shape as the periphery of the window hole. Sealing adapter.   The hook sealing adapter according to any one of claims 1 to 8, an instrument main body provided with a locked portion in which a locking member of the hook sealing adapter is detachably locked, and power is supplied through a plug. A lighting apparatus comprising a ballast.

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