JP5064120B2 - Floodlight - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detent mechanism which can be manufactured inexpensively and a projector adopting the detent mechanism. <P>SOLUTION: This detent mechanism D for stopping one member 3 formed so as to be freely rotated with respect to the other member 2 from rotating with respect to the other member 2 is provided with a dent 10 formed at either of the members 2 and 3; a protrusion 4 formed at the other one of the members 2 and 3 to enter the dent 10; a shaft 15 formed to fix the one member 3 to the other member 2 freely rotatably; and a spring 17 interposed between the shaft 15 and the one member 3 and for energizing the one member 3 to the other member 2 side. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

The present invention relates to a projector having a detent mechanism .

In general, the detent mechanism includes a recess provided in one member and the other member that is rotatable about the one member, a detent ball provided on the other member and the other member, and the detent ball entering the recess. It is comprised with the spring urged | biased in the direction to do.

In such a detent mechanism, if there is one detent ball biased by the spring, the biasing force of the spring acts on the one member and the other member at a position eccentric to the rotation axis. That is, an offset load acts on the one member and the other member, and the one member and the other member are inclined with respect to each other, and the rotation of the other member is disturbed to prevent a smooth rotation operation. Since there is a possibility, two or more detent balls are arranged at equal intervals on the same circumference, and there is one in which an uneven load is not applied to one member and the other member (Patent Document) 1).
JP 2000-231418 A (FIGS. 3 and 4)

However, in the case where a plurality of detent balls are provided as described above, the same number of springs for biasing the detent balls toward the recesses are required as in the case of the detent balls, which increases the number of parts and increases the cost.

Accordingly, the present invention has been developed to improve the above-described problems, and an object of the present invention is to provide a projector having a detent mechanism that can be manufactured at low cost.

In order to achieve the above-described object, the means of the present invention includes a lighting fixture and a projector main body including a solar cell that supplies power to the lighting fixture, and the lighting fixture rotates the lighting main body and the lighting main body. A projector having a handle that is freely pivotally supported and detachably coupled to the projector main body, and a shaft that pivotally supports the illumination main body to the handle, wherein either the illumination main body or the handle is provided. A plurality of depressions are provided at equal intervals along the circumferential direction of the shaft, and at least two protrusions that can simultaneously enter the depression corresponding to the other of the illumination body and the handle Provided at equal intervals along the circumferential direction of the shaft, and further provided with a spring for urging the handle toward the illumination body between the shaft and the handle, and further concentric with the shaft on the handle An annular groove is provided, and the illumination body is inserted into the annular groove. The guide tube is provided, the height of the guide tube is characterized in that it has at least above the ridge.

According to the projector equipped with the detent mechanism of the present invention , even if a plurality of ridges replacing the detent ball are provided, it is not necessary to provide a spring for each ridge, and the detent mechanism is configured by using only one spring. Therefore, the number of parts does not increase, and a projector having a detent mechanism can be manufactured at low cost.
Further, according to this detent mechanism, a plurality of depressions are provided on one circumference coaxial with the shaft, and at least two or more ridges are provided at equal intervals on the circumference so that they can simultaneously enter the corresponding depressions. Therefore, even when the protrusions are located between the recesses, the protrusions arranged at equal intervals come into contact with the end face of the handle, and an uneven load is applied to the lighting body and the handle. Since it does not act, smooth rotation can be realized without causing any trouble in the relative rotation of the illumination body and the handle.

Further, in this detent mechanism, it can be provided directly a possible intrusion ridges in the lighting body or grip hand into the recess, it does not require the installation of expensive detent ball, in this respect, be inexpensive projector Can do.

Furthermore, since the detent mechanism used for the projector as described above has a large degree of freedom in setting the spring force, it is possible to adjust the spring force so that it is particularly suitable for fixing the irradiation direction of the luminaire. When this detent mechanism is adopted in the projector, it is possible to firmly fix the irradiation direction of the lighting fixture, so that the burden on the person who uses the projector can be reduced.
Furthermore, in the present invention, the handle is provided with an annular groove concentric with the shaft, the illumination body is provided with a guide cylinder inserted into the annular groove, and the height of the guide cylinder is at least higher than the protrusion, Since the guide tube does not come out of the annular groove from one recess to the next recess in the forward direction of rotation, the illumination body and the handle are securely positioned in the circumferential direction, and the detent The function of the mechanism is not impaired.

The present invention will be described below based on the illustrated embodiment.
FIG. 1 is a front view of a luminaire in which a detent mechanism according to an embodiment is embodied.
FIG. 2 is a partially enlarged cross-sectional view of a lighting fixture in which a detent mechanism according to an embodiment is embodied.
FIG. 3 is a right side view of the lighting fixture in which the detent mechanism according to the embodiment is embodied.
FIG. 4 is a partial left side view of the handle of the lighting fixture in which the detent mechanism according to the embodiment is embodied.
FIG. 5 is a perspective view of a projector in which the detent mechanism according to the embodiment is embodied.

As shown in FIG. 5, the projector 20 according to the embodiment includes a diagram lighting fixture 1 and a projector main body 21 including a solar cell that supplies power to the lighting fixture 1.
As shown in FIGS. 1 and 2, the luminaire 2 includes an illuminating body 2, a handle 3 that rotatably supports the illuminating body 2 and is detachably coupled to the projector body 21, and an illuminating body 3. And a shaft 15 that pivotally supports the handle 3.
Further, as shown in FIG. 2, the projector 20 is provided with a plurality of depressions 10 at equal intervals along the circumferential direction of the shaft 15 in either the illumination body 2 or the handle 3. At least two or more ridges 4 that can simultaneously enter the recess 10 corresponding to the other of the main body 2 and the handle 3 are provided at equal intervals along the circumferential direction.
Further, a spring 17 is provided between the shaft 15 and the handle 3 to urge the handle 3 toward the lighting body 2 side.
The depression 10, the castle, the shaft 15, and the spring 17 constitute a detent mechanism D.

The luminaire 1 in which the detent mechanism D is embodied includes an illuminating body 2 having a plurality of high-intensity LEDs (Light Emitting Diodes) on the front surface, and a handle 3 that is rotatably attached to the illuminating body 2. LED light.

And the illumination main body 2 is provided with the cup-shaped housing | casing 2a and the lens 2b attached to the opening part of the housing | casing 2a, as shown in FIGS. Through the housing 2a. Further, a vertical portion 7 having a surface perpendicular to the rotation axis of the illumination main body 2 is formed on a side portion of the housing 2a, and the insertion hole 5 into which the shaft 15 is inserted is formed in the vertical portion 7. And a guide tube 6 projecting outward from the outer peripheral side of the insertion hole 5, and at equal intervals on the circumference of a circle that is concentric with the insertion hole 5 and the guide tube 6 and has a larger diameter than the guide tube 6. Two provided ridges 4 are provided. The height of the guide tube 6 is set to be higher than at least the protrusion 4.

The handle 3 as the other member is provided on the outer periphery of the L-shaped handle body 11, the insertion hole 12 into which the shaft 15 provided on the distal end side of the handle body 11 is inserted, and the insertion hole 12. An annular groove 13 into which the guide tube 6 provided in the illumination body 2 is inserted, and provided on the circumference of a circle that is concentric with the insertion hole 12 and the annular groove 13 and has a larger diameter than the annular groove 13. A plurality of depressions 10 are provided. Further, the insertion hole 12 includes a flange portion 12a that protrudes inward on the end portion side where the annular groove 13 is provided.

In addition, the handle 3 is positioned in a state where the guide tube 6 provided in the vertical portion 7 of the illumination main body 2 is inserted into the annular groove 13 and the protrusions 4 are respectively formed in the recesses 10 provided in the handle 3. When facing each other, each protrusion 4 can enter into each recess 10 facing each other. As described above, even when the protrusions 4 are in the recesses 10 facing each other, the tip of the guide tube 6 does not interfere with the bottom of the annular groove 13.

In addition, as shown in FIG. 5, the proximal end of the handle body 11 is detachable from the projector body 21 in the projector 20. Specifically, the projector 20 controls the charging / discharging of a storage battery and a storage battery (not shown) that stores the power generated by the solar battery and the solar battery (not shown) provided on the back side in FIG. The projector body 21 includes a control circuit (not shown) to be controlled and the above-described lighting fixture 1. In the figure, the lighting fixture 1 is provided on the left and right sides of the projector body 21 via the handle 3. It can be fixed one by one.

Moreover, this floodlight main body 21 is a backpack type so that a person can carry it, and by charging a storage battery by solar power generation during the day, a movable illumination that does not require a commercial power source or a dry battery at night. Functions as a device.

In order to fix the luminaire 1 to the projector main body 21, the base end of the handle main body 11 may be inserted into a socket 21a installed on the upper portion of the projector main body 21, and the luminaire 1 can be easily attached and detached. is there.

Returning, the shaft 15 includes a screw portion 15a at the distal end and a hook-shaped head portion 15b at the proximal end, and the shaft 15 inserts the guide tube 6 into the annular groove 13 to illuminate the main body 2. A nut that is inserted into the insertion hole 5 of the illumination body 2 and the insertion hole 12 of the handle 3 together with the spring 17 in a state where the handle 3 is assembled to the screw 15 and screwed to a screw portion 15 a provided at the tip of the shaft 15. It is prevented from coming off at 16.

The spring 17 is housed in the insertion hole 12 of the handle 3 on the outer periphery of the shaft 15 and is interposed between the head portion 15b of the shaft 15 and the flange portion 12a in a compressed state. The urging force is exerted so as to press the handle 3 as the other member against the lighting body 2 as the one member.

Therefore, when the above-mentioned detent mechanism D is in the state where each protrusion 4 enters into each opposing recess 10, the urging force of the spring 17 suppresses the protrusion 4 from being removed from the recess 10. The relative rotation of the illumination body 2 and the handle 3 around the axis 15 is suppressed, and the illumination body 2 and the handle 3 are maintained in a relative position.

Further, when the handle 3 or the illumination main body 2 is rotated against the urging force of the spring 17 from the state in which each protrusion 4 has entered the corresponding recesses 10, the spring 17 has a height of the protrusion 4. When the protrusions 4 are compressed by the amount and once come out of the depressions 10 and face the next depressions 10 in front of the rotation direction, the protrusions 4 enter the opposite depressions 10 again by the urging force of the spring 17. Thus, the anti-rotation function for maintaining the relative position between the illumination main body 2 and the handle 3 is exhibited again.

Further, when the ridge 4 is located between the dent 10 and the dent 10, the two ridges 4 arranged at equal intervals on the same circumference are in contact with the end surface of the vertical portion 7. The illumination main body 2 is not inclined with respect to the handle 3, and an offset load does not act on the illumination main body 2 and the handle 3.

Thus, as shown in FIG. 4, the detent mechanism D has an angle at which the illumination body 2 rotates with respect to the handle 3 before entering the next recess 10 in the rotation direction from the recess 10 with the protrusion 4. For each θ, the handle 3 is positioned with respect to the illumination main body 2 and the rotation is stopped to hold the handle 3 in that position. That is, in this lighting fixture 1, the handle 3 can be positioned at a desired position with respect to the illumination body 2, and the light irradiation angle of the illumination body 2 can be adjusted by adjusting the angle between the handle 3 and the illumination body 2. Can be changed.

In the detent mechanism D, even if a plurality of protrusions 4 are provided in place of the detent balls, it is not necessary to provide a spring for each protrusion 4, and the mechanism is configured by using only one spring 17. Therefore, the number of parts does not increase and the detent mechanism D can be manufactured at a low cost.

Further, in this detent mechanism D, the protrusion 4 that can enter the recess 10 can be directly provided on one member or the other member, and it is not necessary to install an expensive detent ball. Can be made inexpensive.

Furthermore, according to the detent mechanism D, a plurality of the depressions 10 are provided on one circumference coaxial with the shaft 15, and at least two protrusions 4 can be inserted into the corresponding depressions 10 at the same time on the circumference. Since each protrusion 4 is located between the recess 10 and the recess 10, the protrusion 4 arranged at an equal interval is in contact with the end surface of the handle 3. Since an uneven load does not act on the illumination main body 2 and the handle 3, smooth rotation can be realized without causing astringency in the relative rotation of the illumination main body 2 and the handle 3.

Further, since the height of the guide tube 6 is set higher than the height of the protrusion 4, the guide tube 6 is annular between the protrusion 10 and the next recess 10 forward in the rotational direction. Since it does not come out of the groove 13, the illumination main body 2 and the handle 3 are reliably maintained in a circumferentially positioned state, and the function of the detent mechanism D is not impaired.

In the case where three or more protrusions 4 are provided, if the above-described uneven load is prevented from acting on the illumination main body 2 and the handle 3, it should be provided at equal intervals on the same circumference. Good.

The number of depressions 10 may be set according to the number of positioning positions of the illumination body 2 with respect to the handle 3 in order to rotate the illumination body 2 once with respect to the handle 3. 4 and the number of the dents 10 should be set so that all the protrusions 4 of the handle 3 can simultaneously enter the corresponding dents 10 against each other. is there.

Further, in this embodiment, the illuminating body 2 is provided with the ridge 4 and the handle 3 is provided with the depression 10. Conversely, the illuminating body 2 is provided with the dent 10 and the handle 3 is provided with the ridge 4. May be provided.

In addition, in the detent mechanism D, a protrusion 4 that does not roll is provided in place of the detent ball so as to enter the recess 10. Since the resistance when rotating with respect to the handle 3 is increased and the rotation is more firmly prevented, by applying the luminaire 1 including the detent mechanism D to the back light projector 20, The irradiation direction of the illumination main body 2 does not change when it interferes with a tree branch or the like or receives an impact.

In other words, in the case of the back projector-type projector 20, once it is carried on the back, it becomes difficult to operate the illumination direction of the illumination main body 2, and therefore the illumination direction of the illumination main body 2 is easily changed by an impact or the like. Each time, the projector 20 must be lowered and the irradiation direction adjusted to carry the projector 20 again on the back, but by applying the lighting fixture 1 in which the detent mechanism D of the present invention is embodied to the backpack type projector 20. Such a problem is solved.

Furthermore, when using a detent ball, the spring diameter of the spring that biases the detent ball is set depending on the diameter of the detent ball, and the degree of freedom is low. Regardless of the size of the protrusion 4, the diameter of the spring 17 and the diameter of the wire can be freely set, and the adjustment range of the spring force is greatly increased. In particular, the spring force should be increased. Thus, the irradiation direction of the illumination body 2 can be stably fixed, which is optimal for the backpack type projector 20.

Further, since only one spring 17 is used for the luminaire 1 without using a detent ball, the luminaire 1 can be reduced in weight, the total weight of the projector 20 can be reduced, and the back projector type projector. The burden on the person who uses 20 will be reduced.

This is the end of the description of the embodiment of the present invention, but the scope of the present invention is of course not limited to the details shown or described.

It is a front view of a definitive luminaire to an embodiment. Is a partially enlarged cross-sectional view of the definitive luminaire to an embodiment. It is a right side view of the definitive luminaire to an embodiment. Is part left side view of the lifting hand definitive luminaire to an embodiment. It is a perspective view of the light projector in one embodiment.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Illumination main body 2a Case 2b in illumination main body Lens 3 handle 4 in illumination main body 4 Projections 5, 12 Insertion hole 6 Guide tube 7 Vertical portion 10 in illumination main body 11 Depression 11 Handle main body 12a Flange portion 13 Annular groove 15 Screw 15b on shaft 15b Head 16 on shaft 16 Nuts 17 Spring 20 Floodlight 21 Floodlight body 21a Socket D Detent mechanism

Claims (3)

A lighting device and a projector body including a solar cell for supplying power to the lighting device, wherein the lighting device rotatably supports the lighting body and the lighting body, and is detachably coupled to the projector body And a shaft that pivotally supports the illumination body on the handle, and a plurality of depressions are formed in a circumferential direction of the shaft on either the illumination body or the handle. Provided at equal intervals along the circumferential direction of the shaft at least two or more ridges that can simultaneously enter the recess corresponding to the other of the illumination body and the handle, and Provided between the shaft and the handle is a spring for urging the handle toward the illumination body , and further provided with an annular groove concentric with the shaft in the handle, and the annular groove in the illumination body. A guide cylinder to be inserted is provided, and the height of the guide cylinder is Even without emitter, characterized in that higher than the ridge. The illumination body includes a cup-shaped housing and a lens attached to the opening of the housing, and a side surface of the housing includes a surface perpendicular to the rotation axis of the illumination body. A vertical portion is formed, and in the vertical portion, an insertion hole into which the shaft is inserted, a guide tube protruding outward from an outer peripheral side of the insertion hole, and a concentricity with the insertion hole and the guide tube 2. The projector according to claim 1 , wherein two projections provided at equal intervals on a circumference of a circle having a larger diameter than the guide tube are provided . The handle includes an L-shaped handle body, an insertion hole provided in the handle body and into which the shaft is inserted, and a guide tube provided in the outer periphery of the insertion hole and provided in the illumination body. And a plurality of recesses provided at equal intervals on a circumference that is concentric with the annular groove and larger in diameter than the annular groove, and the insertion hole is The light projector of Claim 1 or 2 provided with the flange part which protrudes toward inward in the edge part side in which the said annular groove is provided .

Images