JP2003251579A - Tripod adapter for making device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tripod adapter for a marking device easily fittable to a tripod in a short time, preventing the marking device in a fitted condition to the tripod from being detached, and smoothly turning the marking device to an arbitrary turning position in a fitted condition to the tripod. <P>SOLUTION: The adapter comprises a first cylinder 21 having a cylindrical part for fitting a coupling part with the tripod and a projection 12 of the marking device 10, a second cylinder 30 relatively turnably fitted to the first cylinder, and a tightening member 35 advancedable/retractable to/from an inner circumferential surface of the first cylinder. The second cylinder 30 has a tightening member pressing unit allowing the tightening member 35 to advance from the inner circumferential surface of the first cylinder by relatively turning it to the first cylinder 21, allowing the tightening member to abut on the projection 12 of the marking device 10 fitted to a cylindrical part of the first cylinder for tightening it. The tightening member pressing unit of the second cylinder allows the tightening member 35 to advance from the inner circumferential surface of the first cylinder while the second cylinder 30 is turned in the urging direction. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a tripod adapter for a marking device, which is used by attaching the marking device to a tripod.

[0002]

2. Description of the Related Art A sumi appearance device is a standard line called "tachi", or a reference line from the projector to the ceiling to the wall surface, or a standard called "Roku" on the wall surface during construction work or partitioning of rooms. It is a device that projects a line by laser light. The marking-out device itself has a leg portion, and the marking-out device can be installed at an appropriate position by the leg portion.

In some cases, the marking device may be attached to a tripod for use. When attaching the ink maker to a tripod, the items to consider are that it is easy to put on and take off, that the ink maker is stable and does not fall off the tripod when it is attached to the tripod. Being able to be attached and rotated smoothly,
And so on.

Hereinafter, an example of a conventional structure for mounting a marking device on a tripod and an example of a marking device tripod adapter will be described. In the example shown in FIG. 8, a female screw 51 is formed on the main body base of the marking-out device 50, and a male screw 56 provided on the upper end of the tripod 55 is screwed into the female screw 51. In this example, no adapter is used. The example shown in FIG. 9 uses an adapter. The adapter 57 is mounted on the tripod 55 by screwing the male screw 56 of the tripod 55 into the female screw 59 formed on the lower portion of the adapter 57.
The protrusion 58 formed on the upper end of the adapter 57 is fitted into the recess 52 formed in the main body base of the marker 50, so that the marker 50 is attached to the tripod 5.
It is designed to be attached to 5. The example shown in FIG. 10 also uses an adapter, and the adapter 60 is attached to the tripod 55 by screwing the male screw 56 of the tripod 55 into the female screw 62 formed at the bottom of the adapter 60, and is formed at the upper end of the adapter 60. Male screw 61
Screwing in the female screw 53 formed on the main body base of the marking device 50, the marking device 50 is mounted on a tripod 55.
It is designed to be attached to.

[0005]

According to the structure for attaching the conventional marking device to the tripod shown in FIG. 8, the screw 56 of the tripod 55 is inserted into the marking device 50, so that the marking device is mounted. Since a considerable space is required in 50, there is a problem that the marking-out device 50 becomes large. Further, since the marking-out device 50 is attached to the tripod 55 while rotating, the attachment work to the tripod is troublesome and time-consuming. According to the structure for attaching the conventional marking device shown in FIG. 9 to the tripod, the tripod 55
Since it is only necessary to fit the concave portion of the marking-out device 50 into the convex portion 58 of the adapter 57 attached to, the mounting operation is simple. However, since the marking-out device 50 is not fixed by screws or the like, the marking-out device 50 may fall off from the tripod 55 when the marking-out device 50 is moved together with the tripod 55. According to the conventional tripod mounting structure of the marking device shown in FIG. 10, there is no risk that the marking device 50 will fall off the tripod 55, but since the marking device 50 is attached to the tripod 55 while rotating, It is troublesome and time-consuming to install.

The present invention has been made in order to solve the problems of the prior art as described above, and it is possible to avoid the size of the marking-out device 50 from becoming large, and the work of attaching to the tripod can be simplified in a short time. In addition, it is possible to prevent the inking device from falling off while attached to the tripod, and in addition, it is possible to smoothly rotate the inking device to any rotation position while attached to the tripod. It is an object of the present invention to provide a tripod adapter for a marking device that can be used.

[0007]

The invention according to claim 1 is
A first cylinder having a connecting portion with a tripod and a cylindrical portion into which the protrusion of the ink maker fits; a second cylinder rotatably fitted to the first cylinder; and an inner circumference of the first cylinder. And a tightening member arranged so as to be able to move forward and backward from the surface, and the second cylinder has the first
By rotating relative to the cylinder of the first cylinder, the tightening member is advanced from the inner peripheral surface of the first cylinder, and the tightening member is brought into contact with the protrusion of the marking device fitted in the cylindrical portion of the first cylinder. It has a tightening member pressing portion for tightening.

The connecting part of the first cylinder with the tripod is connected with the tripod, and the adapter is attached to the tripod. With the second cylinder relatively rotated with respect to the first cylinder and the tightening member retracted, the protrusion of the ink maker is fitted into the cylindrical portion of the first cylinder,
When the second cylinder is rotated in the opposite direction relative to the cylinder of
The tightening member pressing portion of the cylinder presses the tightening member, the tightening member advances from the inner peripheral surface of the first cylinder, and the tightening member tightens the protrusion of the marking device. In this way, the marking device is attached to the tripod with the intervention of the adapter.

A second aspect of the invention is characterized in that, in the first aspect of the invention, the fastening member is a spherical body. The invention according to claim 3 is the invention according to claim 1, wherein the second cylinder is rotationally biased in one direction, and the tightening member of the second cylinder is in a state in which the second cylinder is rotated in the biasing direction. The pressing portion causes the tightening member to advance from the inner peripheral surface of the first cylinder.

According to a fourth aspect of the invention, in the invention of the third aspect, each of the first cylinder and the second cylinder has a knob, and the second cylinder is formed by bringing the knobs close to each other. It is characterized in that the tightening member is retracted from the inner peripheral surface of the first cylinder by rotating against the biasing force. According to a fifth aspect of the present invention, in the third aspect of the invention, the urging means for rotationally urging the second cylinder is formed between the first cylinder and the second cylinder that are fitted with each other. It is characterized by comprising a coil spring arranged in a concentric space.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a tripod adapter for a marking out device according to the present invention will be described below with reference to the drawings. In FIG. 1 and FIG. 2, the marking-out device 10 has three legs 11 on the base at the bottom of its main body.
With this, the marking-out device 10 can be placed at any position such as the floor or the ground. A protrusion 12 is integrally provided on the lower surface of the central portion of the ba, protruding downward. The protrusion 12 has a cylindrical shape as a whole, but the circumferential groove 1
3 is formed.

In FIG. 1, a tripod adapter 20 is attached to the protrusion 12 of the marking-out device 10. Below, FIG.
The structure of the tripod adapter 20 will be described with reference to FIGS. 3 to 7. The tripod adapter 20 has a fixed cylinder 21 that forms a part of the first cylinder. A screw forming member 22 is fitted to the lower portion on the inner peripheral side of the fixed barrel 21 and is integrated with the fixed barrel 21. The screw forming member 22 forms a connecting portion with a tripod, and is formed with a female screw into which a male screw of the tripod can be fitted. An upper portion on the inner peripheral side of the fixed cylinder 21 is a cylindrical portion 28 into which the protrusion 12 of the marking device 10 is fitted.

The fixed cylinder 21 has four notches 25 formed at equal intervals in the circumferential direction so as to penetrate the fixed cylinder 21 in the thickness direction. A tightening member 35 made of a spherical body such as a steel ball is arranged in each notch 25. The tightening member 35 moves in the notch 25 and is arranged so as to be able to move forward and backward from the inner peripheral surface of the fixed cylinder 21, more specifically, the inner peripheral surface of the cylindrical portion 28 to which the protrusion 12 of the marking device 10 is to be fitted. ing. The notch 25 has a narrow width on the inner peripheral surface side of the fixed cylinder 21 so that the tightening member 35 does not fall off from the inner peripheral surface of the fixed cylinder 21, and a part of the tightening member 35 inside the fixed cylinder 21. It can be projected from the peripheral surface.

An outer fixing member 23 forming a part of the first cylinder is fitted on the outer peripheral side of the fixed cylinder 21, and the fixed cylinder 21 and the outer fixing member 23 are integrated. The outer fixing member 23 has a length that does not cover the cutout 25 of the fixed cylinder 21. The fixed cylinder 21 has a flange portion 26 with an upper end facing outward.
It has become. On the outer peripheral side of the outer fixing member 23, the second cylinder 30 as a rotating cylinder is provided with the outer fixing member 23 and the fixed cylinder 21.
It is fitted so as to be relatively rotatable with respect to. Second cylinder 30
Is restricted in position by the flange portion 26 of the fixed cylinder 21 and the outward flange portion formed at the lower end portion of the outer fixing member 23, and can rotate only in the circumferential direction.

The inner peripheral surface of the second cylinder 30 facing the tightening member 35 is a tightening member pressing portion 31 and a relief portion 32 following the pressing member pressing portion 31. The escape portions 32 are formed at four locations in the circumferential direction corresponding to the four tightening members 35 by being retracted radially outward from the tightening member pressing portions 31. Further, one end in the circumferential direction of each escape portion 32 is an inclined surface that smoothly connects the tightening member pressing portion 31 and the escape portion 32. By rotating the second cylinder 30 relative to the first cylinder on the fixed side, each fastening member 35 can face each relief portion 32 as shown in FIG. The tightening member 35 can be retracted from the inner peripheral surface of the cylindrical portion 28 of the fixed cylinder 21 by escaping into the escape portion 32. Moreover, FIG. 3 and FIG.
As shown in FIG. 5, when each tightening member 35 faces the tightening member pressing portion 31, each tightening member 35 is pushed by the tightening member pressing portion 31 and advances inward from the inner peripheral surface of the cylindrical portion 28 of the fixed cylinder 21. It is supposed to do.

The outer periphery of the upper end portion of the outer fixing member 23 is a small diameter portion, and the small diameter portion is covered with the inner peripheral surface of the second cylinder 30 to form a concentric cylindrical space 27. . In other words, a space 27 that is concentric with the outer fixing member 23 and the second cylinder 30 is provided between the outer fixing member 23 and the second cylinder 30 that are parts of the first cylinder that fit together. Has been formed. In the space 27, a coil spring 40 wound in a cylindrical shape substantially the same as the space 27 is arranged.
The coil spring 40 constitutes an urging means for rotating and urging the second cylinder 30 in one direction with respect to the fixed cylinder 21 forming the first cylinder, the outer fixing member 23, etc., and one end of the coil spring 40 is the outer fixing member. 23,
The other end is hooked on the second cylinder 30.

The urging direction of rotation of the second cylinder 30 by the coil spring 40 is counterclockwise in FIGS. 4 and 5. FIG. 4 shows a state in which the second cylinder 30 is rotated in the clockwise direction against the biasing force, and each tightening member 35 is in the second position.
It shows a state in which the tightening members 35 are retracted from the cylindrical portion 28 of the fixed cylinder 21 while facing the escape portion 32 of the cylinder 30 and escaping to the escape portion 32. FIG. 5 shows the second cylinder 3 due to the biasing force.
0 indicates a state in which it is rotated counterclockwise, and each tightening member 35 is pushed by the tightening member pressing portion 31 of the second cylinder 30 and is advanced inward from the inner peripheral surface of the cylindrical portion 28 of the fixed cylinder 21. Is shown. At this time, the cylindrical portion 2 of the fixed cylinder 21
Assuming that the protrusion 12 of the marking device 10 is fitted in 8, the size of each part is set so that each tightening member 35 can be fitted in the circumferential groove 13 of the protrusion 12.

The outer fixing member 23 projects to the outer peripheral side and is picked up 2
4 is integrated. The second cylinder 30 also has a knob 33 protruding toward the outer peripheral side. The second cylinder 30 also has a stopper 36 protruding to the outer peripheral portion. Second cylinder 3
When 0 is rotated by the urging force, the knob 24 is positioned on the passage of the stopper 36, and the stopper 36 comes into contact with the knob 24, so that the rotation of the second cylinder 30 by the urging force is restricted. ing. Pick 24, Pick 33
Are relatively close to each other, the second cylinder 30 can be rotated against the biasing force by simultaneously pinching the knob 24 and the knob 33, and the second tube 30 can be brought into contact with the knob 24 by the second tab 30. The rotation of the cylinder 30 is restricted. Further, as shown in FIG. 4, the knob 33 and the knob 2
4 in a state in which the knobs 33 and 24 are brought into contact with each other and the rotation of the second cylinder 30 is restricted,
Each tightening member 35 faces the escape portion 32.

Next, a method of using or a procedure of using the tripod adapter 20 for the marking-out device according to the above embodiment will be described. The tripod adapter 20 is fixed to the tripod by screwing a thread forming member 22 which is a connecting portion with the tripod into a male screw of the tripod. When attaching the marking-out device 10 to the tripod with the interposition of the tripod adapter 20, use knob 2
4, by simultaneously grasping the knob 33 with a finger, as shown in FIG. 4, the second cylinder 30 is rotated clockwise against the biasing force of the coil spring 40, and each tightening member 35 escapes to the escape portion 32. Be prepared to do so. In this state, the protrusion 12 of the marking-out device 10 is fitted into the cylindrical portion 28 of the fixed barrel 21, the finger is released from the knob 33, and the second barrel 30 is moved by the biasing force of the coil spring 40 as shown in FIGS. Rotate counterclockwise. As described above, each tightening member 35 is pressed by the tightening member pressing portion 31 by the rotation of the second cylinder 30, and each tightening member 35 is fixed to the cylindrical portion 28 of the fixed cylinder 21.
The tightening member 35 is fitted in the circumferential groove 13 of the projection 12 by advancing inward from the inner circumferential surface. In this way, the ink maker 1
The protrusion 12 of 0 is tightened by each tightening member 35, and the marking device 10 is attached to the tripod.

When the marking device 10 is attached to the tripod, the tightening members 35 are fitted in the circumferential grooves 13 of the protrusions 12 of the marking device 10, so that the marking device 10 easily comes off the tripod. There is no such thing. Further, since each tightening member 35 is fitted in the circumferential groove 13 of the protrusion 12 of the marking-out device 10, the marking-out device 10 is rotated to an arbitrary rotation position while the marking-out device 10 is attached to a tripod. You can also At this time, the circumferential groove 13 is guided with respect to the protruding tightening member 35, and since each tightening member 35 is a sphere, the tightening member 35 can also rotate with the rotation of the marking device 10, The marking-out device 10 can be smoothly rotated. Therefore, it is possible to accurately and quickly set a reference line called "tachi" or "roku" at a desired position.

According to the above-described embodiment, the marking device 10 can be attached and detached while the second cylinder 30 is rotated against the biasing force by the operation of the knob 33, and the marking device 10 is mounted. When the operation of the knob 33 is released in this state, the marking-out device 10 is mounted so as not to fall off, so that there is an advantage that the attaching / detaching operation of the marking-out device 10 becomes extremely simple. Also, a tripod adapter 20
Since it is formed in a hollow shape, it is possible to pass ground black light emitted from the black marking device 10.

The tightening member 35 is provided to rotate the marking device 10 more smoothly in a state where it is attached to a tripod.
As mentioned above, it is preferably a sphere. However, it does not necessarily have to be a sphere. For example, it may be rod-shaped or block-shaped. Further, only the portion of the protrusion 12 of the marking device 10 that fits into the circumferential groove 13 may be spherical. Coil spring 4 that is a rotation urging means for the second cylinder 30.
0 is not necessarily limited to a cylindrical coil spring concentric with the outer fixing member 23, etc., but an appropriate tension spring,
It may be a compression spring or a leaf spring.

[0023]

According to the present invention, in the state in which the marking device is attached to the tripod, the marking is fitted in the cylindrical portion of the first cylinder by rotating the second cylinder relative to the first cylinder. On the projection of the vessel,
Since the tightening member is brought into contact, the marking device is stably held on the tripod, and the marking device does not easily fall off the tripod. Further, there is also an advantage that the marking device can be smoothly rotated to a desired rotation position with the marking device attached to the tripod. Furthermore, since the marking-out device can be attached and detached while the second cylinder is relatively rotated with respect to the first cylinder, there is also an advantage that the attaching and detaching operation becomes easy.

[Brief description of drawings]

FIG. 1 is a front view, partially in section, showing an embodiment of a tripod adapter for a stakeout device according to the present invention in a state of being attached to the stakeout device.

FIG. 2 is a front view showing an example of a marking-out device to which the tripod adapter according to the above embodiment can be applied.

FIG. 3 is a front sectional view showing an embodiment of a tripod adapter for a marking device according to the present invention.

FIG. 4 is a cross-sectional view of the above embodiment.

FIG. 5 is a cross-sectional view showing another operation mode of the above embodiment.

FIG. 6 is a perspective view of the embodiment.

FIG. 7 is a plan view of the above embodiment.

FIG. 8 is a front view showing an example of a conventional structure for connecting a marking-out device and a tripod.

FIG. 9 is a front view showing an example of a connection structure of a conventional marking-out device using an adapter and a tripod.

FIG. 10 is a front view showing another example of a connection structure of a conventional marking-out device using an adapter and a tripod.

[Explanation of symbols]

10 Inking device 12 protrusions 21 Fixed cylinder that is a part of the first cylinder 22 Thread forming member which is a connecting portion with a tripod 23 External fixed cylinder that is a part of the first cylinder 24 picks 30 Rotating cylinder that is the second cylinder 35 Tightening member 40 Coil spring as biasing member

Claims (5)

[Claims] 1. A first cylinder having a cylindrical portion to which a connecting portion with a tripod and a protrusion of a marking device are fitted, a second cylinder fitted to the first cylinder so as to be relatively rotatable, and a first cylinder. And a tightening member that is arranged so as to be able to move forward and backward from the inner peripheral surface of the first cylinder, and the second cylinder rotates the tightening member relative to the first cylinder so that the inner peripheral surface of the first cylinder. A tripod adapter for a squeezing device, which has a tightening member pressing portion that is advanced from a position where the above-mentioned tightening member is brought into contact with a protrusion of the squeeze device fitted in the cylindrical portion of the first cylinder to tighten the protrusion. . 2. The tightening member comprises a sphere.
Tripod adapter for the marking device. 3. The second cylinder is urged to rotate in one direction,
The tripod adapter for a squeeze device according to claim 1, wherein the tightening member pressing portion of the second cylinder advances the tightening member from the inner peripheral surface of the first cylinder in a state where the cylinder is rotated in the urging direction. 4. The first cylinder and the second cylinder each have a knob, and the second knob is provided by bringing the knobs close to each other.
The tripod adapter for a squeeze device according to claim 3, wherein the cylinder is rotated against the biasing force, and the tightening member is retracted from the inner peripheral surface of the first cylinder. 5. A coil spring arranged in a concentric space formed between a first cylinder and a second cylinder that are fitted to each other, the urging means for rotationally urging the second cylinder. The tripod adapter for the marking-out device according to claim 3.