JP5026752B2 - Tripod precision device and tripod equipped with the same - Google Patents

Description

  The present invention relates to a connecting tool for connecting a precision device represented by a laser marking device to a tripod.

Some precision instruments such as laser marking devices are attached to a tripod for work. For this reason, when attaching a precision instrument to a tripod, a connecting tool having a male thread is provided at the upper end of the lifting pipe of the tripod. (For example, refer to Patent Document 1).
Utility Model Registration No. 3079897

  However, since the conventional connector has a structure that is fixed to the tripod together with the external thread portion, when attaching the precision instrument to the tripod, it is necessary to rotate the precision instrument itself to screw the external thread portion. is there. In this case, the precision instrument must be held and rotated in an unstable state, and careful handling is required so as not to accidentally remove it. In particular, since the laser marking device generally has a weight of about 2 kg, it is required to be handled with a considerable tension.

On the other hand, a coupling tool in which only the male thread portion can rotate independently has also been proposed (see, for example, Patent Document 2).
Utility Model Registration No. 3017614

  However, the above-described conventional coupler that can rotate only the male thread portion has a cross-sectional shape in which more than half of the bowl-shaped side surface is open, and itself has a leg portion like a laser marking device. In the case of a device having this, it is necessary to turn the screw portion by letting a hand go inside the bowl-shaped connector from the gap between the legs. In addition, when rotating the external thread part, an unnatural operation of screwing up from the bottom against the dead weight is forced.

  Furthermore, since the conventional connector has a structure in which the threaded portion is passed through the bowl-shaped inner lower portion, it has to have a complicated shape in which an arm protrudes from the side surface of the connector.

  The problem to be solved by the present invention is to eliminate the complexity of handling the precision instrument itself, and to attach / detach the precision instrument to / from a tripod without operating the screw part by dipping the hand inside the connector. Further, it is an object to provide a tripod equipped with a precision tripod connecting tool for a tripod that can be made compact by simplifying the shape.

The present invention is a tripod precision instrument connector that has a male thread part to which a thread part is screwed to be formed on the back surface of a precision instrument, and is fixed to the upper part of a support pipe of the tripod. A base having a cylindrical portion extending coaxially with the support pipe and a base fixed to the upper end of the support pipe, and a cylindrical grip portion capable of idling clockwise or counterclockwise around the outer periphery of the cylindrical portion of the base. And a connector main body having a support portion for supporting the back surface of the precision instrument together with the male screw portion at the upper end of the grip portion, and a cylindrical portion of the base between the connector main body and the outer periphery thereof. And an annular stopper that advances and retreats so as to be able to be pressed by the clockwise or counterclockwise rotation thereof, and the annular stopper is biased toward the connector body between the base and the annular stopper. Rukoto an elastic member provided It is an feature.

  In the present invention, it is preferable that the base is provided with a threaded portion that is screwed into the support pipe.

  In the present invention, an annular recess that circulates along the circumferential direction is formed on the outer periphery of the cylindrical portion of the base, and the connector body penetrates the connector body and its tip slides into the annular recess. It is preferable to provide a retaining pin that abuts so as to be movable.

  In the present invention, it is preferable that the lower end surface of the annular recess is a horizontal surface, and the upper end surface is an inclined surface.

  Furthermore, the present invention is a tripod characterized by including the connector having the above-described configuration.

  According to the present invention, since the connecting tool can be rotated with respect to the tripod, the handling complexity of operating the precision instrument itself is eliminated, and stable handling is realized. In addition, according to the present invention, since the precision device can be attached and detached by rotating the connector itself, the troublesome operation of operating the screw part by submerging the hand inside the connector is also eliminated. According to the present invention, since it is a straight simple shape that does not require the user to dive into the inside of the connecting tool, the connecting tool, and thus the entire tripod can be made compact.

  Hereinafter, a connector and a tripod according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a tripod 1 according to the present invention. FIG. 2 is an enlarged view of a main part for explaining an operation when the laser marking device 10 is attached to and detached from the tripod 1.

  The tripod 1 has a hollow protective pipe 2, and the leg portion 3 is swingably attached to each of three leg heads 2 a provided outside the protective pipe 2. The leg 3 is composed of a plurality of leg elements that can be expanded and contracted via a lock lever 3a that can be switched between fastening and releasing by lever operation. The leg element that forms the end is provided with a butt 3b with a rubber cover. It has been. These three legs 3 are further connected to the lower end of the protective pipe 2 via a link 2b so as to be swingable.

  Inside the protective pipe 2 is provided a lifting pipe 5 connected to the handle 4 via a gear mechanism (not shown). The elevating pipe 5 serves as a support pipe for the tripod 1 and can be lifted from the protective pipe 2 by rotating the handle 4 clockwise or counterclockwise. Can be lowered.

  A connector 6 according to the present invention is fixed to the upper end of the protective pipe 2. The connector 6 has an external thread portion 61 to which a thread portion is screwed to be formed on the back surface of the laser marking device, and connects the laser marking device 10 to the upper part of the elevating pipe 2.

  FIG. 3 is a cross-sectional view showing the connecting tool 6 in a cross section including the axis O, and FIGS. 4 to 7 are part views each showing a part of each part constituting the connecting tool 6.

  In FIG. 3, reference numeral 62 denotes a base having a cylindrical portion 62 a extending coaxially O with the lifting pipe 5 and fixed to the upper end 5 e of the lifting pipe 5.

  More specifically, as shown in FIG. 4, a flange portion 62b is integrally connected to a lower portion of the cylindrical portion 62a, and a screw portion 62c that is screwed to the elevating pipe 5 is provided at the lower end of the flange portion 62b. Yes. Thereby, the base 62 is fixed to the upper end 5e of the elevating pipe 5.

  Further, as shown in FIG. 4, the base 62 has an annular recess D that circulates in the circumferential direction on the outer periphery of the cylindrical portion 62a. The concave portion D has a lower end surface as a horizontal plane D1, and an upper end surface as an inclined surface D2.

  In FIG. 3, reference numeral 63 has a cylindrical grip portion 63a that can idle clockwise or counterclockwise around the outer periphery of the cylindrical portion 62a of the base 62, and a laser together with the screw portion 61 at the upper end of the grip portion 63a. This is a connector main body integrally formed with a flange-shaped lifting platform (supporting portion) 63b that supports the back surface of the inking device.

  More specifically, as shown in FIG. 5, the grip portion 63a has a non-slip spline shape extending along the axis O, and has a recess 63c at the lower end thereof. A part of the upper end 62e of the cylindrical portion 62a of the base 62 is rotatably fitted to the top surface 63f of the recess 63c. In addition, a plurality of horizontal holes 63d penetrating the grip part 63a are formed in the lower part of the grip part 63a, and as shown in FIG. 3, the tip can slide into the recess D of the base 62 through the horizontal hole 63d. A retaining pin P that is in contact with is provided.

  The retaining pin P is slidably held around the base 62 along a horizontal plane D1 whose side surface Ps is located on the lower end side of the recess D, while a tapered surface P1 is formed at the tip of the retaining pin P. The tapered surface P1 is slidably contacted around the base 62 along the inclined surface D2 located on the upper end side of the recess D. Accordingly, the connector main body 63 can smoothly rotate around the base 62 without dropping from the base 62.

  Further, the connector main body 63 has a through hole 63h penetrating from the recess 63c along the axis O direction into the depression 63g formed in the lifting platform 63b, and the screw portion 63s is formed with a screw portion through the through hole 63h. 61 is fixed by screwing or the like.

  Further, in FIG. 2, reference numeral 64 denotes a hollow member that is screwed onto the outer periphery of the base 62 between the connector main body 63 and advances and retracts so as to be able to contact the connector main body 63 by rotating clockwise or counterclockwise. An annular stopper. Between the base 62 and the annular stopper 64, a coil spring 65 (see FIG. 7), which is an elastic member that urges the annular stopper 64 toward the connector main body 63, is provided.

  More specifically, as shown in FIG. 6, the annular stopper 64 is formed with a through hole A penetrating along the axis O direction.

  The through-hole A has a small diameter portion A1 having a screw portion 64s that is screwed with a screw portion 62s formed in the cylindrical portion 62a of the base 62. Thereby, the annular stopper 64 advances and retreats along the direction of the axis O by rotating around the cylindrical portion 62a of the base 62 clockwise or counterclockwise. As a result, if the annular stopper 64 is rotated around the base 62 and advanced toward the grip portion 63a of the connector main body 63, and the annular stopper 64 is pressed against the lower end of the grip portion 63a, the base of the connector main body 63 is obtained. Can prevent idling around 62.

  The through hole A also has an intermediate diameter portion A2 that forms an annular support surface 64b with which the upper end of the coil spring 65 abuts at the lower end of the opening A1, and the flange portion 62b of the base 62 is formed at the lower end of the intermediate diameter portion A2. A large-diameter portion A3 that slidably surrounds a portion of the annular stopper 63 and forms an annular space R (see FIG. 3) that allows the annular stopper 63 to advance and retreat in the direction of the axis O between the flange portion 62b. Is formed.

  Thus, if the coil spring 65 is disposed between the flange portion 62b of the base 62 and the support surface 64b of the medium diameter portion A2, the annular stopper 64 faces the grip portion 63a against the dead weight of the stopper 64. The urging force that pushes up is acted on by the coil spring 65. For this reason, when it advances toward the grip part 63a of the connector main body 63, it is not necessary to rotate the annular stopper 64 so that the annular stopper 64 can be rotated easily. Further, when retracting from the grip portion 63a of the connector main body 63, the annular stopper 64 does not fall off from the base 62 even if the annular stopper 64 is rotated too much.

  Here, with reference to FIGS. 2 and 3, an operation method when the laser marking device 10 is mounted on the tripod 1 according to the present invention will be described.

  First, the threaded portion 10a to be formed on the back surface 10f of the laser marking device 10 is aligned with the threaded portion 61 of the connector 6 fixed to the lifting pipe 5 of the tripod 1, and then the laser marking device with one hand. While holding 10, the grip part 63a of the connector main body 63 is gripped by the other hand, and the connector main body 63 is idled clockwise or counterclockwise around the base 62 in the direction of the arrow C1. Then, only the connector main body 63 rotates, and the external thread portion 61 that rotates integrally with the connector main body 63 is formed on the back surface 10f of the laser marking device 10 and is screwed into the screw portion 10a. As a result, the laser marking device 10 is connected to the tripod 1 simply by holding the laser marking device 10 so that it does not rotate with the connector main body 63.

  However, although the laser marking device 10 in this state is connected to the tripod 1 by the connecting tool 6, there is a possibility that the lifting pipe 5 may idle with the connecting tool body 63.

  Therefore, the annular stopper 64 is then picked and rotated around the base 62 in the direction of the arrow C2 in the clockwise direction or the counterclockwise direction. Then, the annular stopper 64 advances toward the grip portion 63a of the connector main body 63 along the direction of the arrow Y, presses the grip portion 63a, and prevents idling around the base 62 of the connector main body 63. As a result, the laser marking device 10 can be mounted on the elevating pipe 5 without rotating.

  On the other hand, when removing the laser marking device 10, the annular stopper 64 is picked and rotated counterclockwise or clockwise around the base 62 in the direction of the arrow C2, contrary to the time of mounting. Then, the annular stopper 64 moves backward from the connector main body 63 along the direction of the arrow Y and allows the connector main body 63 to run idle, contrary to the case of mounting.

  Next, while holding the laser marking device with one hand, grasp the grip part 63a of the connector main body 63 with the other hand, and reversely rotate the connector main body 63 around the base 62 in the opposite direction to the time of wearing. When idling in the direction of the arrow C1 in the direction of rotation or clockwise, only the coupling tool main body 63 is rotated, and the screwing of the threaded portion 61 of the coupling tool 6 and the female threaded portion of the laser marking device is loosened. Thereby, the laser marking device 10 can be removed without rotating with respect to the elevating pipe 5.

  According to the present invention, since the connecting tool 6 can be rotated with respect to the tripod 1, the troublesome handling of operating the laser marking device 10 itself is eliminated, and stable handling is realized. Further, according to the present invention, since the laser marking device 10 can be attached and detached by rotating the connecting tool 6 itself, the screw part is operated by inserting the hand inside the connecting tool 6 as in the prior art. In addition, according to the present invention, since the shape is a simple straight line that does not require the user to dive into the inside of the connection tool 6, the connection tool 6 and thus the tripod 1 as a whole can be made compact. Can be planned.

  The above is a preferred embodiment of the present invention, but various modifications can be made within the scope of the claims. For example, the support pipe according to the present invention can be lifted and lowered with respect to the protective pipe 2 like the lift pipe 5, but the support pipe may be fixed without being lifted and lowered with respect to the protective pipe 2. .

  Further, the anti-slip applied to the grip portion 63a is not limited to a spline shape, and can be appropriately changed to a lattice shape or the like. Furthermore, it is desirable that the grip portion 63a has a certain length (for example, 60 to 120 mm) so that the connector main body 63 can be easily rotated.

  Moreover, although the code | symbol L of FIG. 1 is a level and the code | symbol H is a carrying handle for carrying around, selection of such optional parts is free.

  INDUSTRIAL APPLICABILITY The present invention can be used for a tripod to which a precision device represented by an image recording device such as a camera or a video can be attached.

It is a perspective view which shows the tripod according to this invention. It is a principal part enlarged view explaining operation at the time of attaching and detaching a laser marking device to a tripod. It is sectional drawing which shows the coupling device according to this invention in the cross section containing the axis line. It is a side view which shows the left side in cross section toward the base which comprises the coupling tool according to this invention. It is a side view which shows the connector main body which comprises the connector according to this invention in cross section on the left side toward it. It is a side view which shows the right side in cross section toward the annular stopper which comprises the coupling device according to this invention. It is a side view which shows the coil spring which comprises the coupling device according to this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tripod 2 Protection pipe 3 Leg part 4 Handle 5 Lifting pipe 6 Connecting tool
61 Male thread
62 base
62a Tube
62b Flange
62c thread
63 Male thread
63a Grip part
63b Elevator (support)
63c recess
63d side hole
63f top
63g hollow
63h Through hole
64 Annular stopper
65 Coil spring A Through hole
A1 Small diameter part
A2 Medium diameter part
A3 Large diameter part

Claims (2)

A tripod precision instrument coupler that has a male threaded portion that is threaded to be formed on the back surface of a precision instrument, and is fixed to the top of a tripod support pipe,
The connector has a cylindrical portion extending coaxially with the support pipe and a base fixed to the upper end of the support pipe;
The base has a cylindrical grip portion that can idle clockwise or counterclockwise around the outer periphery of the base portion, and a support portion that supports the back surface of the precision instrument together with the male screw portion is formed at the upper end of the grip portion. Connected connector body,
An annular stopper screwed on the outer periphery of the cylindrical portion of the base between the connector main body and the connector main body to be able to press and retract by rotating clockwise or counterclockwise;
Between the base and the annular stopper, tripod for precision instruments coupling, wherein Rukoto an elastic member for urging the annular stopper to said connector body. A tripod comprising the connector according to claim 1 .

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