JPH06176742A - Electric lamp fitting/removing device - Google Patents

Abstract

PURPOSE:To obtain an electric lamp fitting/removing device, in which sufficiently large suction force can be obtained by pushing an electric lamp to a suction cup and even a small electric lamp, even a large electric lamp, even a relatively flat electric lamp and even an electric lamp, of which surface is soiled with dust or the like, can be sucked by the suction cup to be at a high position. CONSTITUTION:An electric lamp fitting/removing device has a suction cup 21 for sucking an electric lamp, a through hole 24 communicated with the inner space of the suction cup 21, a cylindrical shank 82 holding the suction cup 21 so that it can relatively move in the axial direction, a check valve 60 arranged inside of the shank 82 and for sealing one end of the through hole 24 with the energizing force, and a check valve operating mechanism for moving the check valve to separate from the through hole 24, resisting the energizing force. A sub check valve 50 for sealing a communication hole 42 communicated with the inside of the suction cup 21 with small energizing force and for releasing the air inside of the suction cup 21 to the outside at the time of pushing the electric lamp to the suction cup 21 is provided. The suction cup 21 is formed into a taper-shape being deformed along the surface of the electric lamp to enclose the electric lamp.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light bulb attaching / detaching device used for mounting a light bulb at a high place or removing a light bulb at a high place.

[0002]

[Prior Art] At hotels, restaurants, banquet halls, etc.
Light bulbs are more commonly used as lighting fixtures than fluorescent lamps. The number of light bulbs used in hotels, restaurants, banquet halls, etc. is large, and the replacement of broken light bulbs is a common practice. Conventionally, bulb replacement work has been done on stepladders, step ladders,
Ladder etc. were prepared and people were riding on this and doing it by hand. However, it is troublesome to prepare a heavy and bulky thing such as a stepladder, a step ladder, a ladder to perform the light bulb replacement work, and it is also dangerous to work on the step ladder, step ladder, ladder, etc., Further, the work range is limited to the range of the stepladder and the step stool, so that the workability is not good.

Therefore, the present applicant has made it possible to attach and detach the light bulb without using a stepladder, a step, a ladder, etc., thereby eliminating the danger associated with the bulb replacement work, and the attachment and detachment being extremely easy and easy to operate. He invented a good light bulb attachment / detachment device and applied for a patent. The invention according to Japanese Patent Application No. 4-174799 discloses a suction cup for adsorbing a light bulb, a through hole communicating with the inner space of the suction cup, a cylindrical handle that holds the suction cup so that the suction cup can move in the axial direction, and an inside handle. And a check valve operating mechanism for closing one end of the through hole by an urging force, and a check valve operating mechanism for moving the check valve against the urging force by operation to separate the check valve from the through hole.

According to the invention of the above application, when the electric bulb is pressed against the suction cup, the air inside the suction cup is pushed out through the check valve, and when the pressing of the electric bulb is released, the check valve closes the through hole by the biasing force and sucks the suction cup. The air pressure inside the suction cup decreases due to the force that restores the suction cup's airtightness, and the light bulb is adsorbed to the suction cup.In this state, you can rotate the suction cup and the light bulb together with the handle to attach or detach the light bulb to the socket. it can. Check the valve operation by pulling the handle to release the suction cup suction from the light bulb mounted in the socket, and pull the bulb and handle together to release the suction cup suction from the light bulb removed from the socket. Open the check valve by activating the mechanism and moving the check valve against the biasing force. As a result, the air pressure inside the suction cup becomes the same as the atmospheric pressure, and the bulb can be easily removed from the suction cup.

As described above, according to the invention of the above application, the suction cup, the handle and the check valve are the main constituent parts, which is extremely convenient, and the bulb is attached to and detached from the socket at a high place by extending the handle. As a result, it is possible to attach and detach the light bulb without using a stepladder, step, or ladder.

[0006]

However, there is still room for improvement in the invention according to the above application. That is, in order to increase the suction force of the light bulb by the suction cup to a certain extent or more, it is necessary to increase the biasing force of the check valve to a certain extent or more, and then when sucking the light bulb by the suction cup, it is necessary to press the light bulb on the suction cup with a strong force. Therefore, the operability is impaired. In addition, the size and shape of the light bulb are various, and it is possible to adsorb even a small light bulb, a large light bulb, a relatively flat light bulb, and even if the surface is dirty with dust or the like. It is necessary to devise the shape of the suction cup. Furthermore, when you try to install the bulb in the socket, if the center axis of the bulb that has been sucked into the suction cup does not match the center axis of the handle and the suction cup, when you rotate the handle around the center axis, the bulb cap It rotates in a conical path, making it difficult to install the bulb, but it takes some getting used to aligning the center axis of the bulb with the center axis of the handle and suction cup to suck the bulb onto the suction cup. Is. Therefore, even when used by an unfamiliar person, it is necessary to devise such that the center axis of the light bulb coincides with the center axis of the handle and the suction cup.

The present invention has been made in view of the above points. A first object of the present invention is to improve the operability by providing a sufficiently large suction force by simply pressing the light bulb against the suction cup. An object is to provide a detachable device.

A second object of the present invention is that a small or large light bulb, a relatively flat light bulb, or even a light bulb whose surface is soiled with dust or the like can be adsorbed by a suction cup. An object is to provide a light bulb attaching / detaching device.

A third object of the present invention is to provide a light bulb attaching / detaching device capable of adhering a light bulb to a suction cup by aligning the center axis of the light bulb with the center axis of the handle and the suction cup even when used by an unfamiliar person. To do.

[0010]

In order to solve the above problems, a first aspect of the present invention is directed to a suction cup for sucking a light bulb, a through hole communicating with the internal space of the suction cup, and a suction cup in the axial direction. A tubular handle that is movably held, a check valve that is disposed in the handle and that closes one end of the through hole by an urging force, and a check valve that is operated to move against the urging force and separate from the through hole. In a light bulb attachment / detachment device having a check valve operating mechanism, the communication hole with the inside of the suction cup is closed by an urging force smaller than the urging force of the check valve,
A sub-check valve is provided to allow the air inside the suction cup to escape to the outside when the bulb is pressed against the suction cup.

According to a second aspect of the present invention, a suction cup for adsorbing a light bulb, a through hole communicating with the internal space of the suction cup, a cylindrical handle holding the suction cup so as to be relatively movable in the axial direction, and arranged in the handle. In a light bulb attachment / detachment device having a check valve for closing one end of the through hole by an urging force and a check valve operating mechanism for moving the check valve against the urging force by operation to separate the check valve from the through hole, a sucker is provided. , A tapered portion was provided which was deformed along the surface of the light bulb to enclose the light bulb.

According to a third aspect of the present invention, a suction cup for adsorbing a light bulb, a through hole communicating with the inner space of the suction cup, a cylindrical handle that holds the suction cup so as to be relatively movable in the axial direction, are arranged in the handle, In a light bulb attaching / detaching device comprising a check valve for closing one end of the through hole by an urging force and a check valve operating mechanism for moving the check valve by operation to resist the urging force and separating the check valve from the through hole, A light bulb adsorption assisting tool is provided that can temporarily hold the base and move it in the axial direction so that the center axis of the suction cup and the handle and the center axis of the light bulb are aligned with each other to adsorb the light bulb to the suction cup.

[0013]

According to the first aspect of the invention, when the suction cup is pressed against the electric bulb, the air inside the suction cup is compressed, and the air inside the suction cup escapes to the outside from the sub-check valve by a slight compressive force, and when the pressing of the suction cup is released, The sub-check valve closes the communication hole with the inside of the suction cup. When a light force is applied in the direction in which the light bulb is pulled away from the suction cup, the internal pressure of the suction cup tends to expand and the atmospheric pressure is lowered, so that the light bulb is held in a state of being sucked by the suction cup. If you hold the light bulb in the suction cup and rotate it around the axis while holding the handle, the light bulb will rotate together, so you can attach and detach the light bulb to the socket. When the check valve operating mechanism is operated by pulling the handle with a certain amount of force with the light bulb attached to the socket, the check valve is moved against the biasing force, and the check valve is separated from the through hole. Air can be removed from the suction cup as air flows into the suction cup.

According to the second invention, when the suction cup is pressed against the light bulb, the tapered portion of the suction cup is deformed along the surface of the light bulb to wrap the light bulb in a surface contact state. At the same time, the air inside the suction cup escapes to the outside, and the light bulb is adsorbed by the suction cup. A force acts on the sucked light bulb in the direction of being pushed out by the taper of the suction cup, but due to this force, the internal space of the suction cup tries to expand and the atmospheric pressure drops, and the light bulb is held in the state of being sucked by the suction cup. .

According to the third aspect of the present invention, when the bulb suction assisting tool temporarily holds the base of the bulb and the bulb suctioning assisting tool is moved in the axial direction, the central axis of the suction cup and the handle and the central axis of the bulb become. Are matched and the light bulb is pressed against the suction cup and absorbed.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a light bulb attaching / detaching device according to the present invention will be described below with reference to the drawings. In FIG.
The cup-shaped suction cup 21 is made of flexible rubber or resin, and has an open upper end that serves as a bulb receiving port 22. Most of the cup is deformed along the surface of the bulb to be attached and detached. It has a taper shape that can enclose a light bulb. A downward projection 25 is formed at the center of the bottom portion 23 of the suction cup 21, a through hole 24 is formed through the projection 25 in the vertical direction, and a hole 26 is formed at a position offset from the center of the bottom portion 23. A number of mounting holes are formed.

The suction cup 21 is held by a suction cup holder 30. The suction cup holder 30 can be made by, for example, resin integral molding, and has a substantially flat receiving portion 37 and upper and lower cylindrical portions 31, 32 integrally formed on the outer periphery of the receiving portion 37.
And a cylindrical portion 34 formed by projecting downward from the central portion of the receiving portion 37. A small hole 36 is formed in the receiving portion 37 at a position overlapping with the hole 26 of the suction cup 21,
An appropriate number of vertical slit-shaped window holes 35 are formed in the connecting portion between the receiving portion 37 and the cylindrical portion 34. The bottom portion 23 of the suction cup 21 is placed on the receiving portion 37 of the suction cup holder 30 and is surrounded by the cylindrical portion 31. The sub-check valve 50 is arranged in the hole 26 of the suction cup 21.
The lower half part of the sub-check valve 5 is press-fitted into the mounting hole formed in the receiving part 37 of the suction cup holder 30.
0 is attached. The sub-check valve 50 is made of flexible rubber or resin and has a flat cup-shaped valve portion 51 at its upper end.

A pressing member 40 is arranged on the inner bottom of the suction cup 21. The holding member 40 has a through hole 41 at the center, a communication hole 42 at a position deviated from the center, and an appropriate number of downward protruding portions 43 at a position deviated from the center. Each of the protrusions 43 fits into the appropriate number of mounting holes of the suction cup 21 and the holes of the suction cup holder 30 overlapping these mounting holes, and is fixed to each of the projections 43 from the lower surface side of the receiving portion 37 of the suction cup holder 30. When the screw 55 is screwed in, the suction cup 21 is held by the suction cup holder 30 such that the bottom portion 23 of the suction cup 21 is sandwiched between the receiving portion 37 of the suction cup holder 30 and the pressing member 40. The through hole 41 of the pressing member 40 and the through hole 24 of the suction cup 21 overlap each other, and the communication hole 42 of the pressing member 40 is located above the sub-check valve 50.

A coil spring 80 is dropped into the cylindrical portion 34 of the suction cup holder 30 before mounting the suction cup 21, and then a check valve 60 is dropped through the coil spring 80. The check valve 60 has a valve portion 61 having a substantially rod shape and an upper end surface having a conical shape, and a flange portion is provided immediately below the check valve 60.
The upper end of the abut. The lower end of the check valve 60 penetrates the bottom of the cylindrical portion 34. The check valve 60 is vertically movable, and is normally pushed up by the urging force of the coil spring 80 so that the valve portion 61 closes the through hole 24.

The parts described so far constitute one unit, and this unit is attached to the handle 82 with the holder 70 interposed. The holder 70 has an upper portion spreading like an inverted umbrella and a lower portion forming a cylindrical portion 72. The umbrella-shaped upper end of the holder 70 is a sucker holder 3
The number of notches 71 fitted on the inner peripheral side of the cylindrical portion 32 of 0 and formed on the upper end of the umbrella-like shape, and the protrusion 33 formed on the inner surface side of the cylindrical portion 32 of the suction cup holder 30. By being fitted together, the suction cup holder 30 can move relative to the holder 70 in the axial direction, but can rotate around the central axis line together with the holder 70. The cylindrical portion 72 of the holder 70 has a partition wall 73 in the middle in the length direction, and the lower end portion of the check valve 60 penetrates the partition wall 73. A stopper washer 62 is further fitted to the lower end of the check valve 60, and the hole 6
3 is formed.

The cylindrical portion 72 of the holder 70 has a cylindrical handle 8
The holder 70 is integrally attached to the handle 82 by being fitted on the inner peripheral side of the upper end portion of No. 2, and the protrusion 75 formed on the outer periphery of the lower end portion of the cylindrical portion 72 is fitted into the hole formed in the handle 82. . The handle 82 has a certain length.
If necessary, as shown in FIG. 6, a plurality of patterns 82, 82a, 82b having different sizes may be fitted in order in a stretchable manner so that the length of the pattern can be adjusted according to the usage conditions. .

Next, a method of using the above embodiment will be described.
When removing a light bulb attached to a high place such as a ceiling, the handle 82 is held by hand, the receiving opening 22 of the suction cup 21 is applied to the light bulb 85 as shown in FIG. 2, and the handle 82 is pushed up to the light bulb 85 side. Since the suction cup 21 is made of a flexible and elastic material and has a tapered shape, the suction cup 21 receives the light bulb 85 while enclosing the light bulb 85 while deforming along the outer shape of the light bulb 85. At this time,
The air inside the suction cup 21 is compressed, and this compressed air pushes the valve portion 51 of the sub-check valve 50 as shown in FIG.
The valve portion 51 is separated from the bottom surface of the pressing member 40, and the suction cup 21
As shown by the arrow in FIG. 3, the air inside is communicated with the communication hole 42, the gap between the bottom surface of the pressing member 40 and the valve portion 51, and the suction cup 21.
Through the hole 26, the small hole 36 of the suction cup holder 30, and the gap between the suction cup holder 30 and the holder 70.

When the push-up of the handle 82 is released, the valve portion 51 of the sub-check valve 50 returns to its original position by its own elasticity as shown in FIG. 2 to close the communication hole 42 and keep the inside of the suction cup 21 airtight. To do. Therefore, even if the handle 82 is pulled down lightly, the air pressure inside the suction cup 21 drops and the suction cup 21 adsorbs the light bulb 85. Therefore, the suction cup 21 does not come off from the light bulb 85, and the hand is released from the handle 82. Even when the load of the attachment / detachment device itself is applied, the light bulb attachment / detachment device is held in a state of hanging from the light bulb 85. In this way, the suction cup 21 has
When the handle 82 is rotated in a state of being sucked onto the holder 5, the holder 70 integrated with the handle 82 also rotates, and the suction cup holder 3
0, the suction cup 21 also rotates, and the electric bulb 85 also rotates together with the suction cup 21, so that the electric bulb 85 can be removed from the socket.

When the light bulb 85 is removed from the socket, the suction cup 21 is formed in a tapered shape, so that a force acts in the direction in which the light bulb 85 is pushed out along the tapered surface of the suction cup 21. The air pressure decreases as the space tries to expand, and the electric bulb 85 is held while being adsorbed by the suction cup 21. Therefore, a force of a certain amount or more, that is, the coil spring 80, in the direction of separating the electric bulb 85 from the suction cup 21.
Pull with more force than the urging force of. The suction cup 21 that adsorbs the light bulb and the suction cup holder 30 integrated with the suction cup 21 move together with the light bulb, but the check valve 60 cannot move because the washer 62 of the check valve 60 contacts the partition wall 73 of the holder 70. Therefore, as shown in FIG. 4, the suction cup 21 and the suction cup holder 30 integrated with the suction cup 21 move upward relative to the check valve 60, the holder 70, and the handle 82 while compressing the coil spring 80. The valve portion 61 separates from the protrusion 25 of the suction cup 21 and opens the through hole 24.
As a result, as shown by the arrow in FIG. 4, the outside air is exposed to the gap between the suction cup holder 30 and the holder 70 and the suction cup holder 3
0 through the window hole 35, the gap between the valve portion 61 and the protrusion 25, the through hole 24, and the through hole 41 to flow into the suction cup 21, and the air pressure inside the suction cup 21 becomes equal to the atmospheric pressure. The suction of 85 is released, and the electric bulb 85 is easily removed from the suction cup 21.

Next, when the light bulb 85 is attached to the socket at a high place, the light bulb 85 is pressed against the suction cup 21 by hand to be adsorbed. This suction operation is the same as the above-described operation when the electric bulb 85 is attached. When the light bulb 85 is attached to the suction cup 21, the handle 8
2 is held by hand, the base 86 of the light bulb 85 is aligned with the socket position at a high place, and the handle 82 is rotated. When the handle 82 is rotated, the holder 70 integrated with the handle 82 also rotates, and the suction cup holder 30 and the suction cup 21 also rotate, so that the light bulb 85 sucked by the suction cup 21 can be attached to the socket. When the light bulb 85 is attached to the socket, the handle 82 is pulled downward. When the handle 82 is pulled downward, the suction cup 21 and the suction cup holder 30 are moved to the coil spring 80 as already described with reference to FIG.
While moving the check valve 60, the check valve 60, the holder 70, and the handle 82 move upward relative to the check valve 60.
The valve portion 61 of the through hole 2 is separated from the protrusion 25 of the suction cup 21.
4 is opened and the suction of the electric bulb 85 by the suction cup 21 is released, so that the suction cup 21 can be easily separated from the electric bulb 85.

A washer 62 fitted in the check valve 60
The holder 70 and the like constitute a check valve operating mechanism. The check valve operating mechanism may be any mechanism that moves the check valve 60 against the urging force by operation. Therefore, for example, a string is attached to the hole 63 at the lower end of the check valve 60 and the check valve 60 is passed through the handle 82. When removing the light bulb from the suction cup 21, the check valve 60 may be moved by pulling the string against the elastic force of the coil spring 80.

According to the above-described embodiment, it is not necessary to mount and dismount the light bulb on the stepladder or step, so that it is common to the light bulb mounting and demounting apparatus according to the previous application that the mounting and dismounting work can be performed safely. In addition to the effect, check valve 6
When the communication hole 42 with the inside of the suction cup 21 is closed by the urging force smaller than 0 and the electric bulb is pressed against the suction cup 21, the suction cup 2
1 Since the sub-check valve 50 that allows the air inside to escape to the outside is provided, there is an advantage that a sufficiently large suction force can be obtained by simply pressing the light bulb 85 against the suction cup 21 and the operability is improved.

Further, since the suction cup 21 is deformed along the surface of the light bulb 85 and has a tapered portion which encloses the light bulb 85, when the suction cup 21 sucks the light bulb 85, the suction cup 21 is sucked.
And the light bulb 85 are in contact with each other over a large area, the light bulb 85 can be surely adsorbed, and the light bulb 85 is deformed according to the size and shape of the light bulb.
Even a flat light bulb can be adsorbed and attached to and detached from the socket, and since the suction cup 21 and the light bulb 85 are in contact with each other over a large area, air does not easily leak even if the surface of the light bulb is dirty with dust or the like. However, it can be adsorbed by the suction cup 21 and adsorbed to the socket.

As described above, when the electric bulb is sucked onto the suction cup, it takes some habituation to make the central axis of the bulb coincide with the central axis of the handle and the suction cup. By using such a light bulb adsorption aid, even a beginner can match the center axis of the light bulb with the center axis of the handle and the suction cup. 5 to 7, an auxiliary tool guide 87 is integrally provided on the outer peripheral portion of the suction cup holder 30. The auxiliary tool guide 87 includes the handle 82 and the suction cup 21.
A guide hole is provided in parallel with the central axis of the rod, and a rod 88 is slidably inserted into the guide hole along the guide hole. The upper end of the rod 88 is bent to form a horizontal portion 89 extending above the suction cup 21.
The base portion of the base has a partially arcuate ceiling with a base 94
Is stuck. The inner diameter of the base 94 is a light bulb 85.
The size and shape are adapted to the size and shape of the base 86.

A lever 90 is attached to the horizontal portion 89 so as to be rotatable about a shaft 91 in a horizontal plane. One end of the lever 90 serves as an operating portion 92, and the other end of the lever 90 complements the opening of the base receiving portion 94 to supplement the light bulb 85.
Is a mouthpiece contact portion 93 having a partial arc shape that abuts the mouthpiece 86. A semi-circular spring 95 is hung across the base receiving portion 94 and the base contacting portion 93, and the elastic force of the spring 95 causes the base contacting portion 93 to enter the base receiving portion 94 through the opening of the base receiving portion 94. The lever 90 is rotationally biased in the direction. However, the lever 90 contacts a part of the mouthpiece receiving portion 94 at a position where the mouthpiece abutment portion 93 forms substantially the same arc with the mouthpiece receiving portion 94, and the rotation by the biasing force is limited. The auxiliary tool guide 87, the rod 88, the base receiving portion 94, and the like constitute a light bulb suction auxiliary tool 98. When the rod 88 is inserted into the auxiliary tool guide 87, the central axis of the mouthpiece receiving portion 94 is the suction cup 21 and the handle 82.
The dimensional relationship is set so as to match the central axis line of.

When the light bulb attaching / detaching device according to the present invention is used to mount a light bulb in a socket at a high place, first,
As shown in FIG. 5, the base 86 of the light bulb 85 is inserted into the base receiving portion 94 of the light bulb suction assisting device 98 from below, and the base 86 is inserted.
Is temporarily held. More specifically, the operating portion 92 of the lever 90 is pushed with a finger to rotate the lever 90 against the urging force, and the opening of the mouthpiece receiving portion 94 is changed to the mouthpiece contact portion 93.
The cap 86 of the electric bulb 85 is inserted into the cap receiving portion 94, and then the lever 90 is rotated by the urging force to bring the cap contact portion 93 into contact with the cap 86, so that the cap 86 is provisionally To hold.

Next, as shown in FIG. 6, the rod 88 of the light bulb suction assisting tool 98, which temporarily holds the light bulb 85 as described above, is inserted into the assisting tool guide 87 from above and slid downward. As a result, the electric bulb 85 is pressed against the suction cup 21, and the electric bulb 85 is adsorbed to the suction cup 21 as described above. Next, with the lever 90 rotated against the biasing force, the rod 8 is rotated.
8 is pulled out from the auxiliary tool guide 87, and the light bulb adsorption auxiliary tool 9
8 is separated from the light bulb 85. When the rod 88 is inserted into the auxiliary tool guide 87, the center axis of the mouthpiece receiving portion 94 is set to coincide with the center axes of the suction cup 21 and the handle 82, and thus the rod 88 is attracted to the suction cup 21 as described above. The central axis of the light bulb 85 coincides with the central axes of the handle 82 and the suction cup 21. Therefore, when the handle 82 is rotated around the central axis, the light bulb 85 sucked by the suction cup 21 also rotates around the central axis, and the base 86 does not rotate in a conical locus. The 85 can be easily attached to the socket at a high place.

As described above, by using the light bulb adsorption assisting tool 98 shown in FIGS. 5 to 7, the center axis of the light bulb 85 can be easily set to the handle 82 even by a beginner who is not accustomed to operating the light bulb attaching / detaching device.
And the light bulb 85 in a state of being aligned with the central axis of the suction cup 21.
Since the suction cup 21 can be sucked into the suction cup 21, even a beginner can easily attach and detach the light bulb to the socket at a high place.

Incidentally, the base receiving portion 9 of the light bulb suction assisting tool 98.
By fixing a sponge or other elastic body to the inner peripheral side of 4, it is possible to temporarily hold the base of the light bulb without providing the lever 90 or the like. Further, the cross-sectional shape of the rod 88 and the auxiliary tool guide 87 is D-shaped or oval so that the relative positional relationship between the rod 88 of the light bulb suction assisting tool 98 and the auxiliary tool guide 87 is always constant. Therefore, it is desirable to apply a detent.

[0035]

According to the invention described in claim 1, since it is not necessary to attach and detach the light bulb to and from the socket at a high place by riding on a stepladder or a step, there is an effect that the attaching and detaching work can be safely performed. Not to mention, the sub check valve that closes the communication hole to the inside of the suction cup with a biasing force smaller than the biasing force of the check valve and releases the air inside the suction cup to the outside when the light bulb is pressed against the suction cup is installed. It is possible to obtain a sufficiently large suction force by simply pressing it against the suction cup and to improve the operability.

According to the second aspect of the invention, since the suction cup has a tapered portion that deforms along the surface of the light bulb and wraps the light bulb, when the suction cup sucks the light bulb, The light bulb comes into contact with a large area, and the light bulb can be surely adsorbed, and since it deforms according to the size and shape of the light bulb, it can adsorb even large, small and flat bulbs and socket it. Since the suction cup and the light bulb come into contact with each other over a large area, it is difficult for air to leak even if the surface of the bulb is soiled with dust, etc. it can.

According to the third aspect of the present invention, by temporarily holding the base of the electric bulb and moving it in the axial direction, the central axis of the suction cup and the handle can be aligned and the electric bulb can be adsorbed to the suction cup. Since a suction aid is provided, even beginners who are new to operating the light bulb attachment / detachment device can easily attach the light bulb to the suction cup with the center axis of the light bulb aligned with the center axis of the handle and the suction cup. However, the light bulb can be easily attached to and detached from the socket at a high place.

[Brief description of drawings]

FIG. 1 is a sectional front view showing an embodiment of a light bulb attaching / detaching device according to the present invention.

FIG. 2 is a partial cross-sectional front view showing a working mode of the above embodiment.

FIG. 3 is a partial cross-sectional front view of a main part showing an operation mode of the above embodiment.

FIG. 4 is a partial cross-sectional front view of a main part showing still another operation mode of the above embodiment.

FIG. 5 is a front view showing an example of a light bulb adsorption assisting tool applicable to the present invention.

FIG. 6 is a front view showing a usage mode of the above-mentioned electric bulb suction assisting tool.

FIG. 7 is a plan view of the same electric bulb suction assisting tool.

[Explanation of symbols]

 21 Sucker 24 Through Hole 42 Communication Hole 50 Sub-Check Valve 60 Check Valve 82 Handle 85 Light Bulb 86 Clasp 98 Light Bulb Adsorption Aid

Claims (3)

[Claims] 1. A suction cup for sucking a light bulb, a through hole communicating with the internal space of the suction cup, a cylindrical handle that holds the suction cup so that the suction cup is relatively movable in the axial direction, and is arranged in the handle, and is urged by an urging force. A light bulb attachment / detachment device comprising a check valve for closing one end of a through hole and a check valve operating mechanism for moving the check valve against an urging force by operation to separate the check valve from the through hole. A light bulb attaching / detaching device comprising a sub-check valve that closes a communication hole with the inside of the suction cup with a smaller biasing force and allows the air inside the suction cup to escape to the outside when the light bulb is pressed against the suction cup. 2. A suction cup for adsorbing a light bulb, a through hole communicating with the internal space of the suction cup, a cylindrical handle holding the suction cup so as to be relatively movable in the axial direction, and arranged inside the handle, and is urged by an urging force. In a light bulb attaching / detaching device having a check valve for closing one end of the through hole and a check valve operating mechanism for moving the check valve against the biasing force by operation to separate the check valve from the through hole, the suction cup is a surface of the light bulb. A light bulb attachment / detachment device having a taper-shaped portion which is deformed along the direction to wrap the light bulb. 3. A suction cup for adsorbing a light bulb, a through hole communicating with the internal space of the suction cup, a cylindrical handle holding the suction cup so as to be relatively movable in the axial direction, and arranged inside the handle, and is urged by an urging force. In a light bulb attaching / detaching device having a check valve for closing one end of the through hole and a check valve operating mechanism for moving the check valve against the biasing force by operation to separate it from the through hole, the base of the light bulb is temporarily A light bulb attachment / detachment device having a light bulb adsorption assisting tool capable of adhering the light bulb to the suction cup by holding the light source on the suction cup and moving it in the axial direction by aligning the center axis of the suction cup and the handle with the center axis of the light bulb. .