JP6234156B2 - Locking device and lighting device - Google Patents

Description

  The present invention relates to a balloon-type lighting device used at a construction site, an accident site, an outdoor event site, or the like, and a locking device suitably used for such a lighting device.

  2. Description of the Related Art Various types of balloon-type lighting devices have been proposed in which a balloon is inflated by expanding a member such as an umbrella bone. For example, in the balloon-type illumination device disclosed in Patent Document 1, a plurality of aggregates composed of two bar members rotatably connected are radially arranged between a top member and a base member. Each end of the material is rotatably connected to the top member and the base member. The top member is connected to the support via an illumination lamp, and the base member is provided so as to be movable in the vertical direction with respect to the support. By moving the base member upward, the aggregate is opened radially, and the balloon member is inflated by simultaneously opening the jaw members attached to the aggregate.

  Further, in the lighting device disclosed in Patent Document 2, a plurality of flexible member members are arranged radially between the top member and the base member, and a balloon member is stretched on the outer surface of the member member. ing. A column is connected to the top member, and the base member is provided to be movable in the vertical direction with respect to the column. An illumination lamp is attached to the upper end of the column, and a handshake for operation is attached to the lower end. When the operator holds the handshake and moves the base member upward, the clerk member is opened and the balloon is inflated.

  In each of these lighting devices, a top member is attached to the upper end of the support column, and the balloon is inflated or deflated by moving the base member movable relative to the support column in the vertical direction. Burden on the user's operation. The present applicant has proposed a lighting device that is easy to operate for inflating the balloon and does not place a heavy burden on the operator as Patent Document 3.

  In the illuminating device of Patent Document 3, a stretchable bone structure in which a plurality of flexible member members are radially arranged between a top member and a base member, and a balloon provided on the outer surface of the stretchable bone structure A lighting device that illuminates the surroundings with an illumination lamp disposed inside the telescopic bone structure, and the top member and the base member are movable in the axial direction within the pipe member and the pipe member The rod members are connected to each other by an extensible telescopic support column, and the rod member penetrates the pipe member in a contracted state of the telescopic support column and protrudes from the open end portion at the open end portion. A locking member that can be engaged to prevent movement of the telescopic strut in the extending direction is provided.

JP 2004-253172 A JP 2004-95517 A Japanese Patent No. 4502924

  According to the illumination device of Patent Document 3 described above, the operation for inflating the balloon and the operation for deflating the balloon are both extremely easy, and the operation is quickly performed without burdening the operator. It is possible.

  However, when the balloon is displaced between the inflated state and the deflated state, it has also been desired that the base member can be moved in the vertical direction so that the base member can be fixed at that position with the balloon inflated.

  An object of the present invention is to provide an illuminating device having a structure in which a top member can be fixed and a base member can be moved so that the base member can be fixed at the position in a state where the balloon is inflated, and a locking device that can be used for the lighting device. Objective.

  An illumination device according to the present invention is provided on an outer surface of a telescopic bone structure in which a plurality of flexible member members are radially arranged between a top member and a base member, and the telescopic bone structure. A lighting device that illuminates the surroundings with an illumination lamp disposed inside the telescopic bone structure, the illumination lamp being connected to the top member by a pipe member and The top member, the intermediate member, and the base member are attached to an intermediate member that is disposed inside the bone structure, and the telescopic member includes a pipe member and a rod member that is movable in the axial direction inside the pipe member. The base member is connected between the intermediate member and the base member so as to be movable toward or away from each other by an extendable support column. A locking device is provided for engaging in a pulling direction in a state of approaching each other and locking so as not to be separated from each other, and the locking device has a rotation shaft on one of the intermediate member and the base member. A hook member pivotally attached to the center and provided with a hook at the tip, and biased in a direction to be pivotable about the pivot shaft and to return to the original posture on the other of the intermediate member or the base member And a link member having an engaging portion engageable with the hook at a distal end portion, and the hook member is pushed by the link member so that the hook is attached to the hook member. There is provided a posture changing section that rotates between an engaging posture that engages in the original posture and a non-engaging posture that does not engage.

  Preferably, one end is connected to one of the intermediate member or the base member, and a cord body is provided that is extended via a support member provided on the other of the intermediate member or the base member. By pulling the strip, the intermediate member and the base member are configured to move in the approaching direction.

  The locking device according to the present invention is provided between a first member and a second member that are movable in directions toward or away from each other, and the first member and the second member approach each other. A locking device for engaging in a pulling direction in a state and locking so as not to separate from each other, wherein the locking device is attached to the first member so as to be rotatable around a rotation shaft, and a hook is provided at a tip portion A hook member provided and an engagement portion attached to the second member so as to be rotatable about a rotation axis and biased in a direction to return to the original posture, and engageable with the hook at a tip portion A non-engaged engagement member that engages the hook member when the link member is in its original posture by being pushed by the link member. A posture changing unit is provided to rotate between It is.

  Preferably, the posture changing unit is engaged by pushing by the link member when the first member and the second member approach, and changes from the non-engaged posture to the engaged posture. A non-engaging pushing portion that is pushed by the link member and changes from the engaging posture to the non-engaging posture when the first member and the second member approach each other, and An engagement slope that guides the link member to the engagement pressing portion when in the engagement posture, and a non-engagement slope that guides the link member to the non-engagement pressing portion when in the engagement posture. Have.

  According to the present invention, it is possible to provide an illuminating device having a structure in which the top member can be fixed and the base member can be moved, and the base member can be fixed at the position with the balloon inflated.

  In addition, according to the lock device of the present invention, it is possible to provide a lock device that can be locked and unlocked by a simple operation.

It is a perspective view which shows the external appearance of the illuminating device of one Embodiment which concerns on this invention. It is a section front view of the illuminating device of one Embodiment. It is a bottom view of the illuminating device of FIG. It is a front view of a locking device. It is a side view of a locking device. It is a figure which shows the centering spring of a locking device. It is a figure for demonstrating operation | movement of a locking device.

  FIG. 1 shows an appearance of a lighting device 1 according to an embodiment of the present invention, FIG. 2 shows a sectional front view of the lighting device 1, and FIG. 3 shows a bottom view of the lighting device 1. . In FIG. 2, a solid line indicates a state where the balloon is inflated, and a two-dot chain line indicates a state where the balloon is deflated.

  In the lighting device 1 shown in FIGS. 1 to 3, in particular, as shown in FIG. 2, a plurality of flexible members 15, 15, 15... Are radially provided between the top member 11 and the base member 13. Thus, the stretchable bone structure SK is configured. A sheet-like balloon member 31 made of synthetic resin or the like is stretched on the outer surface of the stretchable bone structure SK, thereby forming an oblate or oblate ellipsoidal appearance. A lamp unit LU, which will be described later, is disposed inside the telescopic bone structure SK, and the surrounding illumination is performed by turning on the lamp LM.

  The balloon member 31 is made of nylon, polyester, or a white or colored material having translucency such as cloth or canvas, and is sewed so as to be oblate in an expanded state. The upper side of the balloon member 31 is along the outer periphery of the top member 11, and the lower side is along the outer periphery of the base member 13.

  The jaw member 15 is a wire having a spring property made of a stainless steel material or the like, but in order to improve the spring property, a small coil that protrudes inside the telescopic bone structure SK is formed at a position close to both ends. It may be left.

  Upper ends of two pipe members 16 are fixed to the top member 11, and an intermediate member 12 is fixed to lower ends of the pipe members 16. That is, the top member 11 and the intermediate member 12 are connected by the two pipe members 16.

  The top member 11, the intermediate member 12, and the base member 13 are all annular portions 11 a, 12 a, 13 a formed by curving a belt-shaped stainless steel plate and the like, and the lower side of the annular portions 11 a, 12 a, 13 a And lower plates 11b, 12b, and 13b made of a strip-shaped aluminum alloy plate or the like that are arranged in the diameter direction at the end edge of the plate and are attached by screws or the like. A disc-shaped top plate 14 is attached on the top member 11.

  A lamp base 22 is attached to the intermediate member 12 with a bolt through a pipe-shaped spacer 21. A socket 23 for attaching the lamp LM and an igniter (not shown) for lighting the lamp LM are attached to the lamp base 22.

  A guide rod 17 is attached between the top member 11 and the intermediate member 12. A plurality of lamp guards 18 in which metal wires are formed in an annular shape are attached to the outer peripheral surfaces of the pipe member 16 and the guide rod 17.

  As described above, the top member 11 and the intermediate member 12 are integrated, and the lamp LM is attached to the top member 11 and the intermediate member 12 to constitute the lamp unit LU.

  A rod member 16a that can move in the axial direction is inserted into the pipe member 16, thereby forming a telescopic strut SS that can telescopically expand and contract. The lower end of the rod member 16 a is fixed to the base member 13. Therefore, the top member 11 and the intermediate member 12 and the base member 13, that is, the lamp unit LU and the base member 13 are connected to each other so as to be movable toward and away from each other by the telescopic strut SS.

  That is, the balloon member 31 is in a deflated state when the rod member 16a is most extended, and the balloon member 31 is in an inflated state when it is most contracted. Even when the rod member 16a is most extended, the lower end portion of the rod member 16a remains in the pipe member 16, and even when the rod member 16a is most contracted, the lower end portion of the rod member 16a slightly protrudes downward from the lower end of the pipe member 16.

  A cylindrical flange 24 is attached to the center of the lower plate 12b of the intermediate member 12 with screws, and the upper end portion of the cylindrical support shaft 25 is inserted into the hole of the flange 24 and fixed with screws or the like. Yes.

  Further, a cylindrical flange 26 is attached to the center of the lower plate 13b of the base member 13 with screws. The lower plate 13b is formed with a hole slightly larger than the hole of the flange 26, and the support shaft 25 passes through the hole of the lower plate 13b and the hole of the flange 26 and between the hole of the flange 26. It is slidable. Therefore, the base member 13 is slidable in the vertical direction along the outer peripheral surface of the support shaft 25 as a guide surface.

  By connecting the support shaft 25 to a pole erected by a tripod stand, a telescopic telescopic drive device, or the like, the entire illumination device 1 can be set on the ground or on a vehicle.

  Further, a roller 27 that is rotatable about a horizontal axis is attached to the lower surface of the lower plate 12b of the intermediate member 12 via a bracket 27a. A wire 28 that passes through a hole provided in the lower plate 13 b of the base member 13 is wound around the roller 27 from above. A wire stopper 28a is fixed to one end of the wire 28 after passing through the hole of the lower plate 13b, and one end of the wire 28 is locked on the lower surface of the lower plate 13b by the wire stopper 28a to prevent the wire 28 from coming off. Yes. The other end of the wire 28 extends further downward after passing through the hole of the lower plate 13b, and a round bar-shaped grip 29 is attached to the tip thereof.

  Therefore, when the operator grasps the grip 29 with his hand and pulls the wire 28 downward, the wire 28 is turned through the roller 27, and the base member 13 is pulled upward by the wire stopper 28a at the tip. Become. That is, when the wire 28 is pulled downward, the base member 13 moves upward, and when the wire 28 is loosened, the base member 13 moves downward due to gravity.

  When the base member 13 moves downward, the balloon member 31 is in a deflated state. When the base member 13 moves upward, the balloon member 31 is inflated. A lock device LS is provided to maintain the state of the base member 13 when it is moved upward.

  That is, between the intermediate member 12 and the base member 13, there is provided a lock device LS for engaging the base member 13 in a pulling direction when the base member 13 is close to the intermediate member 12 and locking them so as not to be separated from each other. It has been.

  In addition, a cable 41 for supplying power to the lamp LM is attached to the intermediate member 12, and a connector 41 a for connecting to power supply wiring is attached to the tip of the cable 41. The cable 41 extends downward through a hole provided in the lower plate 13b of the base member 13.

  Next, the lock device LS will be described with reference to FIGS.

  4 to 6, the lock device LS includes a hook device 50 attached to the upper surface of the lower plate 13 b of the base member 13 and a link device 60 attached to the lower surface of the lower plate 12 b of the intermediate member 12.

  The hook device 50 includes a base block 51, a hook member 52, a shaft screw 53, a compression coil spring 54, and the like.

  The link device 60 includes a base block 61, link members 62 (62a, 62b), a shaft screw 63, an engagement screw 64, a lock nut 65, a centering spring 66, and the like.

  First, in the link device 60, the base block 61 is formed in a substantially rectangular parallelepiped shape with an aluminum alloy or the like, and is fixed to the lower surface of the lower plate 12b with a plurality of screws 61a. A through hole is provided in the central portion of the end face of the base block 61, and a link member 62 is rotatably attached to the shaft screw 63 inserted into the through hole with the shaft screw 63 as a rotation shaft. . A lock nut 63a is attached to the tip of the shaft screw 63 so that the link member 62 can freely rotate and the shaft screw 63 is not loosened.

  The two link members 62 a and 62 b are connected in parallel by a lock nut 65 through which a shaft portion 64 a of an engagement screw 64 is inserted into a hole provided at each tip. The centering spring 66 is formed by bending a wire made of spring steel or the like. An annular portion 66 a bent in an annular shape at the upper end is fixed to the lower plate 12 b by a screw 67, and the straight portion 66 b is parallel to the link member 62. The U-shaped portion 66c at the lower end is engaged with the tip portion of the shaft portion 64a being wound around.

  Since the straight portion 66b of the centering spring 66 extends in the vertical direction in a free state, that is, extends in a direction perpendicular to the surface of the lower plate 12b, the link member 62 extends along the vertical direction by the centering spring 66 in the free state. It is held in a posture (original posture).

  Even if the link member 62 rotates from the original posture against the biasing force of the centering spring 66 by an external force and swings in the left direction or the right direction, if the external force is removed, the link member 62 is restored by the biasing force of the centering spring 66. Return to the original posture. That is, the link member 62 is urged by the centering spring 66 in a direction to return to the original posture.

  When the base member 13 moves relative to the intermediate member 12, that is, when the intermediate member 12 and the base member 13 move relative to each other, the path along which the shaft portion 64a moves (relative movement) is the surface of the lower plates 12b and 13b. This is shown as an engagement path KK in FIG. That is, the engagement path KK is on the center line in the original posture of the link member 62.

  A shaft portion 64a of an engagement screw 64 provided at the tip of the link member 62 can be engaged with a hook 52a of a hook member 52 described later. When the shaft portion 64a and the hook member 52 are engaged with each other, the intermediate member 12 and the base member 13 are engaged with each other in a pulling direction so as not to be separated from each other.

  The engagement screw 64 or the shaft portion 64a is an example of the “engagement portion” in the present invention. The link member 62 and the engagement screw 64 may be referred to as “link member 62” or “link member”.

  Next, in the hook device 50, the base block 51 is formed in a substantially rectangular parallelepiped shape with an aluminum alloy or the like, and is fixed to the upper surface of the lower plate 13b with a plurality of screws 51a. A screw hole is provided in one end face of the base block 51, and a hook member 52 is rotatably attached by a shaft screw 53 and a compression coil spring 54 screwed into the screw hole.

  The hook member 52 is formed with an outer shape so as to include a hook 52a and a posture changing portion 52b by processing a plate-like body made of, for example, a stainless steel plate.

  The posture changing unit 52b has a shape similar to two equilateral sides of a right triangle, and has a concave-like shape in which each equilateral side warps upward at the lower end of each equilateral side. A hole is provided in the central portion thereof, and the shaft screw 53 described above is inserted into the hole, and the entire hook member 52 can be rotated around the shaft screw 53 with the shaft screw 53 as a rotation shaft. It has become. In addition, the hook member 52 is pressed against the base block 51 by the compression coil spring 54, and the frictional force becomes a resistance force against the rotation of the hook member 52, and the hook member 52 has an arbitrary rotation angle position (rotation angle position). ).

  The hook 52a has an arm extending obliquely upward from one end of the posture changing portion 52b, and warps downward at the upper end of the arm in the vicinity of the apex of the right triangle of the posture changing portion 52b. It has a concave-like shape.

  More specifically, the posture changing unit 52b is engaged with the hook 52a when the link member 62 is in the original posture by being pushed by the engagement screw 64 provided at the tip of the link member 62. It has a function of rotating between the non-engaging posture KSN that is not engaged with KSY.

  That is, the posture changing unit 52b is engaged by the engagement pusher that is pushed by the link member 62 (engagement screw 64) and changes from the non-engagement posture KSN to the engagement posture KSY when the intermediate member 12 and the base member 13 approach each other. When the contact portion 521, the intermediate member 12 and the base member 13 approach each other, the link member 62 (engagement screw 64) is pressed to change the engagement posture KSY to the non-engagement posture KSN. The engaging slope 523 guides the link member 62 (engagement screw 64) to the engaging pressing portion 521 when in the non-engaging posture KSN, and the non-engaging pressing of the link member 62 when in the engaging posture KSY. A non-engagement slope 524 leading to the portion 522 is provided.

  When the engagement pressing portion 521 is pressed by the link member 62, the non-engaging slope 524 faces the engagement path KK, and when the non-engaging pressing portion 522 is pressed by the link member 62, The posture of the hook member 52 is switched so that the engaging slope 523 faces the engaging path KK.

  That is, the engagement slope 523 and the non-engagement slope 524 form two sides of a triangle having the boundary portion as a vertex TT in front view, and the vertex TT moves to the left and right across the engagement path KK. The engagement posture KSY and the non-engagement posture KSN of the link member 62 are switched.

  Next, the operation of the lock device LS will be described with reference to FIG.

  In FIG. 7A, the hook member 52 is in the non-engaging posture KSN. When the operator pulls the wire 28 downward to move the base member 13 to the vicinity of the uppermost end, and the intermediate member 12 and the base member 13 are relatively closest to each other, the shaft portion 64a of the link member 62 is engaged. Passing through KK, it contacts the engaging slope 523, moves along the engaging slope 523, and contacts the engaging pressing portion 521. As a result, when the shaft portion 64a pushes the engagement pressing portion 521, the hook member 52 rotates in the right rotation direction R1 in the figure, and the engagement posture KSY shown in FIG. During this time, the link member 62 is moved to the right from the engagement posture KSY.

  In FIG. 7B, when the link member 62 is in the engagement posture KSY, the hook 52a is positioned on the engagement path KK. When the operator loosens the wire 28 and moves the base member 13 downward so that the intermediate member 12 and the base member 13 are relatively separated from each other, the link member 62 initially moves upward along the engaging slope 523. When the vertex TT is exceeded, the original posture is restored. After the link member 62 returns to the original posture, the link member 62 moves along the engagement path KK, and the shaft portion 64a engages with the hook 52a.

  In this state, that is, in the locked state, the base member 13 is suspended from the intermediate member 12 by the lock device LS, and the base member 13 does not move downward. The balloon member 31 is in an expanded state, and this state is maintained.

  From this state, when the operator pulls the wire 28 downward again to move the base member 13 upward, the link member 62 moves along the non-engaging slope 524, as shown in FIG. It contacts the non-engaging pressing part 522. Thus, when the shaft portion 64a presses the non-engaging pressing portion 522, the hook member 52 rotates in the left rotation direction R2 to be in the non-engaging posture KSN shown in FIG. During this time, the link member 62 assumes a posture that swings to the left from the engagement posture KSY.

  In FIG. 7D, when the operator loosens the wire 28 and moves the base member 13 downward, the link member 62 initially moves upward along the non-engagement slope 524 and exceeds the vertex TT. Return to the original posture. After the link member 62 returns to the original posture, the base member 13 moves along the engagement path KK, and the base member 13 moves downward without engaging the shaft portion 64a with the hook 52a. When the base member 13 moves to the lower end position, the balloon member 31 is in a deflated state.

  If the wire 28 is pulled downward again from this state and the base member 13 is moved upward, the same state as described with reference to FIG. 7A is obtained, and then the wire 28 is loosened, as described with reference to FIG. 7B. Thus, the base member 13 is engaged with and locked with the intermediate member 12, and the balloon member 31 is inflated and maintained.

  As described above, when the operator repeats the operation of pulling the wire 28 downward and then loosening the base member 13, the base member 13 repeats locking and disengagement with the intermediate member 12, and the balloon member 31 is inflated or released. Can wither.

  That is, by using the lock device LS, the balloon member 31 can be easily inflated or deflated by a simple operation in which the operator pulls the wire 28. In addition, the base member 13 can be easily fixed at the position when the balloon member 31 is inflated, and the locking and unlocking can be performed with a simple operation when the balloon member 31 is inflated. .

  In the embodiment described above, the centering spring 66 is used to maintain the link member 62 in the original position. However, the centering spring 66 has various other shapes such as a leaf spring and a coil spring. Can do. Further, the centering spring 66 may be omitted, and the original posture may be maintained by the weight of the link member 62.

  In the embodiment described above, the link device 60 is attached to the intermediate member 12 and attached to the hook device 50 base member 13, but this may be reversed. The shape, dimensions, material, number, etc., of the hook member 52 and the link member 62 can be variously changed in addition to those described above.

  In the embodiment described above, the roller 27 can have various shapes. A simple rod or non-rotating cylinder with a groove may be used. An appropriate guide can be used so that the wire 28 does not fall off. As the wire 28, various types of cords such as a string-like one and a chain-like one can be used.

  In addition, each part of the top member 11, the intermediate member 12, the base member 13, the telescopic strut SS, the lamp unit LU, the telescopic bone structure SK, the lock device LS, or the lighting device 1, or the overall configuration, structure, shape, dimensions, material The number, arrangement, and the like can be appropriately changed in accordance with the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Illuminating device 11 Top member 12 Intermediate member (1st member, 2nd member)
12b Lower plate 13 Base member (second member, first member)
13b Lower plate 15 Clamp member 27 Roller (support member)
28 wires
31 Balloon member 51 Base block 52 Hook member 52a Hook 52b Posture changing portion 521 Engaging pushing portion 522 Non-engaging pushing portion 523 Engaging slope 524 Non-engaging slope 53 Shaft screw (rotating shaft)
61 Base block 62 Link member 63 Shaft screw (rotating shaft)
64 Engagement screw 64a Shaft 66 Centering spring (elastic member)
LS Lock device KK Engagement path KSY Engagement posture KSN Non-engagement posture SS Telescopic strut SK Telescopic bone structure LU Lamp unit TT Vertex

Claims (8)

Provided between a first member and a second member that are movable in directions toward or away from each other and engaged in a direction that attracts each other when the first member and the second member are close to each other And a locking device for locking so as not to be separated from each other,
A hook member attached to the first member so as to be rotatable about a rotation axis, and having a hook provided at a tip portion;
A link member that is attached to the second member so as to be rotatable about a rotation axis and is biased in a direction to return to the original posture, and having an engagement portion that can be engaged with the hook at a distal end portion; Have
When the hook member is pushed by the link member, the hook member is rotated between an engagement posture that engages when the link member is in the original posture and a non-engagement posture that does not engage. Part is provided ,
The posture changing unit
An engagement pressing portion that is pushed by the link member when the first member and the second member approach, and changes from the non-engagement posture to the engagement posture;
A non-engagement pressing portion that is pushed by the link member and changes from the engagement posture to the non-engagement posture when the first member and the second member approach,
An engaging slope that guides the link member to the engaging pressing portion when in the non-engaging position;
A non-engagement slope that guides the link member to the non-engagement pressing portion when in the engagement posture;
Locking device characterized in that it comprises a. Provided between a first member and a second member that are movable in directions toward or away from each other and engaged in a direction that attracts each other when the first member and the second member are close to each other And a locking device for locking so as not to be separated from each other,
A hook member attached to the first member so as to be rotatable about a rotation axis, and having a hook provided at a tip portion;
A link member that is attached to the second member so as to be rotatable about a rotation axis and is biased in a direction to return to the original posture, and having an engagement portion that can be engaged with the hook at a distal end portion; Have
When the hook member is pushed by the link member, the hook member is rotated between an engagement posture that engages when the link member is in the original posture and a non-engagement posture that does not engage. Part is provided ,
The posture changing unit
An engagement pressing portion that is pushed by the link member when the first member and the second member approach, and changes from the non-engagement posture to the engagement posture;
A non-engagement pressing portion that is pushed by the link member and changes from the engagement posture to the non-engagement posture when the first member and the second member approach,
An engagement inclined surface for guiding the link member to the engagement pressing portion;
A non-engaging slope that guides the link member to the non-engaging pressing part,
When the link member is in the original posture, the engagement pushing is performed by the link member with the path of the engagement portion along the movement direction of the first member and the second member as an engagement path. The non-engagement slope faces the engagement path when the part is pushed, and the engagement slope faces the engagement path when the non-engagement pressing part is pushed by the link member , The posture of the hook member is switched,
A locking device characterized by that. The link member is biased in a direction to return to the original posture by an elastic member, with the posture extending in the direction along the engagement path as the original posture.
The locking device according to claim 2 . The engaging slope and the non-engaging slope form two sides of a triangle having the boundary portion as a vertex in front view,
The locking device according to any one of claims 1 to 3 . An elastic bone structure in which a plurality of flexible member members are radially disposed between a top member and a base member, and a balloon member provided on an outer surface of the elastic bone structure, An illumination device that illuminates the surroundings with an illumination lamp disposed inside the telescopic bone structure,
The illumination lamp is attached to an intermediate member that is connected to the top member by a pipe member and disposed inside the telescopic bone structure,
The top member, the intermediate member, and the base member are moved toward and away from each other by an extendable telescopic column made of a rod member that can move in the axial direction inside the pipe member and the pipe member. Concatenated as possible,
Between the intermediate member and the base member, there is provided a lock device for engaging the base member in a direction to pull each other in a state of approaching the intermediate member and locking the base member so as not to be separated from each other. ,
The locking device is
A hook member attached to one of the intermediate member or the base member so as to be rotatable around a rotation axis, and having a hook provided at a tip portion;
An engaging portion is provided on the other end of the intermediate member or the base member so as to be rotatable about a rotation axis and biased in a direction to return to the original posture, and engageable with the hook at a tip portion. A link member;
When the hook member is pushed by the link member, the hook member is rotated between an engagement posture that engages when the link member is in the original posture and a non-engagement posture that does not engage. Part is provided,
A lighting device characterized by that. One end is connected to one of the intermediate member or the base member, and a cord body extended through a support member provided on the other of the intermediate member or the base member is provided.
The intermediate member and the base member are configured to move in the approaching direction by pulling the strip body,
The lighting device according to claim 5 . The posture changing unit
An engagement pressing portion that is pushed by the link member when the intermediate member and the base member approach, and changes from the non-engagement posture to the engagement posture;
A non-engaging pushing portion that is pushed by the link member when the intermediate member and the base member approach, and changes from the engaging posture to the non-engaging posture;
An engagement inclined surface for guiding the link member to the engagement pressing portion;
A non-engaging slope that guides the link member to the non-engaging pressing part,
When the link member is in the original posture, the engagement pressing portion is pushed by the link member with the passage of the engagement portion along the movement direction of the intermediate member and the base member as an engagement route. The hook member so that the non-engagement slope faces the engagement path when the non-engagement pressing portion is pushed by the link member. Can be switched,
The illumination device according to claim 5 or 6 . The link member is biased in a direction to return to the original posture by an elastic member, with the posture extending in the direction along the engagement path as the original posture.
The lighting device according to claim 7 .

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