JPH0624729Y2 - Plumber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to plumb bob, and particularly to at least a pair of fixed needles having different lengths, a ceiling fixing screw means, and a magnet for inserting and supporting a needle tip portion. The present invention relates to a plumb bob having a hook portion for supporting a plate and a magnet plate and capable of easily forming a vertical line at various places.

<Prior Art> FIG. 9 is a perspective view showing a conventional plumb bob.

In FIG. 9, a conventional plumb bob is a main body case 11 basically provided with a hollow housing, and is rotatably provided inside the hollow main body case 11 by using an elastic member. A bobbin (not shown) provided with a winding mechanism, and a lower thread 12 having one end connected to the bobbin
And a weight (not shown) connected to the other end of the lower thread 12,
Fixed needle 1 for temporarily fixing the body case 11 to the lower swing position
3 and the pressing portion 14 that pushes the fixed needle 13 into, for example, wood or the like by projecting the fixed needle 13 from the main body case 11 and pressing the fixed needle 13 to the lower swing position.

In this conventional plumb bob, the fixed needle 13 can be delivered to the main body case 11 or can be projected from the main body case 11 with one touch, and the lower thread 12 having a weight connected to the other end can be wound up with a button. Since it was possible to wind and store it inside the main body case 11 simply by pressing (not shown), it was compact and lightweight and very convenient.

<Problems to be Solved by the Invention> However, the conventional plumb bob shown in FIG. 9 has a complicated structure, but is compact, but is easily broken, and is expensive.

Further, since the thread winder provided with the automatic winding mechanism using the elastic member is provided inside the main body case 11, the main body case 11 is basically a hollow housing, which is lightweight and easily fixed to wood or the like. For this reason, it is usually made of a lightweight plastic material. Therefore, if the product is accidentally dropped or thrown on the ground, the main body case 11 may be easily damaged.

The lower thread 12 is delivered to the main body case 11 and a threading hole (not shown) opened at a predetermined position of the main body case 11.
Since it goes in and out, the thickness is limited to a certain thickness or less and it is easy to cut, and if cutting occurs, if the down thread 12 is tied at the cutting point, the knot will be caught in the threading hole and can be used. It caused the inconvenience of disappearing.

Therefore, the weight is inevitably light in order to prevent the lowering thread 12 from being easily cut, and it is easily affected by wind and the like, and the main case 1 has only one fixed needle 13.
I couldn't get an accurate vertical line because 1 itself was shaking easily.

Further, when there is no suitable fixing place, the main body case 11 can only be supported by one hand, but the main body case 11 is difficult to hold with one hand and an accurate vertical line cannot be obtained.

This invention was made against the background of the above circumstances, it is not easily broken, the manufacturing cost is low, it can be fixed at various places and vertical lines can be easily formed, and at the same time the use of relatively heavy weights is used. It is an object of the present invention to provide a swing-down device which is capable of performing an accurate vertical line and which can be easily supported by one hand.

<Means for Solving the Problems> In order to solve the above problems and achieve a desired object, the present invention proposes a main body, a thread winding shaft rotatably arranged on the main body, and one end fixed to the thread winding shaft. Then, the entire length of the lowering thread that can be wound around the thread winding shaft and the other end of the lowering thread are connected,
In a plumb bob including a weight that forms a vertical line in the vertical direction by rolling down the bobbin, the main body is
It is basically solid and has a screw means for fixing the ceiling at a predetermined position, and is provided with a screw cap for the screw means so that the lower end side of the lower thread can be temporarily fixed. Both ends were exposed from the main body, and the needle tip provided on one end side was projected from the main body in parallel and with different lengths in the same direction, and the entire length excluding both ends was integrally fixed to the main body At least a pair of fixed needles,
A striking portion that covers the needle tip portion of the fixed needle and has a grasping portion, and the other end of the fixed needle opposite to the needle tip portion, respectively, and has a protruding column tube as the grip portion. When,
A desirable effect can be obtained by including a bolt penetrating the inside of the thread winding shaft and a nut combined with the bolt, and a thread winding fixing means for temporarily stopping the rotation of the thread winding shaft by tightening the bolt and the nut. To be

When a magnet plate for inserting and supporting the needle tip portion is attached to the main body, or a hook portion for supporting the magnet plate is attached, the swing-down device can be attached to a place where the swing-down device cannot be conventionally fixed. Can be fixed, which is convenient.

<Operation> The operation of the present invention will be briefly described with reference to FIG. 1 and FIG. 2. The swing-down device according to the present invention has a pair of fixed needles 4 inside the main body 1 which is solid. 5 is integrally fixed to the entire length excluding both ends, and the needle tip portion 4 provided at one end side
It is a sturdy structure in which a and 5a are projected from the main body 1 in parallel and in different directions in different lengths, and the other ends are projected as hitting parts 4b and 5b, respectively. Hitting the hitting parts 4b and 5b with a hammer or the like. Thus, the main body 1 can be quickly and stably fixed by the pair of fixed needles 4 and 5 (FIG. 4). Further, when removing the swing-down device, the short needle tip 5a can be pulled out from the fixing place, and then the main body 1 can be pulled out while rotating, so that it can be easily removed from the fixing place. And, since a screw means 7 (Fig. 5) for fixing the ceiling is provided at a predetermined position of the main body 1 which is basically solid, it is easily fixed to the upright wood and the ceiling, and is vertically fixed by the lowering thread. You can get the line.

Further, when the swing-down device is not used, the weight 6 is removed, the joint 3a side of the lowering thread 3 is sandwiched between the main body 1 and the lower end of the screw cap 7a, and the stop nut 22 is tightened, so that it is easy and reliable. Can be organized into (Fig. 7).

Further, the screw cap 7a for the screw means 7 and the grasping portion 1 provided between the needle tip cover 1A and the striking portions 4b, 5b.
f. Since the main body can be stably supported by one hand with the grip 1g (FIG. 8), an accurate vertical line can be obtained even in a place where the main body 1 cannot be fixed.

<Embodiment> A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of an exploded view of essential parts of an embodiment according to the present invention, FIG. 2 is an exploded perspective view mainly showing its main body, and FIG. 3 is an exploded perspective view showing its accessories. is there.

In FIG. 1, the swing-down device of this embodiment is basically a solid main body 1 of the swing-down device that is injection-molded or die-cast with a plastic material or an aluminum alloy, and the main body 1 is rotatable in the approximate center of the figure. Yarn winding shaft 2 placed in
, One end of which is connected to a predetermined position of the thread winding shaft 2 (see FIG. 2) and the entire length of which is wound around the thread winding shaft 2, and the entire length excluding both ends is solid. By connecting at least two pairs of fixed needles 4 and 5 that are integrally fixed to the main body 1 and have both ends exposed from the main body 1 and the other end of the lowering thread 3 and rolling out the lowering thread 3 vertically, A weight 6 for forming a vertical line in the direction, a screw means 7 for fixing the main body 1 by projecting to the upper surface of the main body 1 in the drawing and mainly screwed into a ceiling or the like, a magnet plate 8 for fixing the main body 1, and this magnet. A hook member 9 for fitting and fixing the plate 8 is provided.

As shown in FIG. 2, the main body 1 is provided with a needle tip cover 1A on the needle tip portions 4a, 5a side of the fixed needles 4, 5, and a notch 1a formed in the main body 1 and a projection formed on the needle tip cover 1A. 1b
, And temporarily fix it, but on the needle tip cover 1A,
Needle tip holes 1c and 1d into which the needle tip portions 4a and 5a are inserted are provided, and an L-shaped grasping portion 1f is formed on the right end surface in the figure.

Further, at the left end of the main body 1 in the figure, the other ends of the fixed needles 4 and 5 are provided with striking portions 4b and 5b which are exposed to the outside and the fixed needles 4 and 5 are fixed with a hammer or the like (not shown). A grip portion 1g is formed between the striking portions 4b and 5b which can be hit and which are projected in parallel from the main body 1.

Since the hanging hole 1h is provided between the notch 1a and the thread winding shaft 2, when the plumb bob is displayed for sale or is tied up in a warehouse or the like, a hook or the like (not shown) is shown. No)
Can be hung on.

The thread winding shaft 2 is formed by a disc-shaped spool plate 20 and the spool plate 20 integrally with the spool plate 20.
Shaft 21 for rotatably supporting the main body 1 and the rotary shaft 2
And a stop nut 22 that presses 1 onto the main body 1 to stop the rotation.

Referring again to FIG. 1, the lowering thread 3 is provided with a joint 3a at the lower end thereof to which the weight 6 can be detachably connected, and the screw means 7 has a wood screw or the like fixed to the main body 1 and a screw cap 7a. It is formed so as to cover the screw means 7 when it is not used.

In FIGS. 1 and 3, the magnet plate 8 as an accessory is formed by a ferrite magnet or the like, and needle tip holes 8a and 8b are formed near the upper and lower ends of the drawing, and a screw through hole 8c is formed in the center of the drawing. Similarly, the hook member 9 as an accessory includes a fixing hole 9a into which the magnet plate 8 is fitted, an aluminum sash A, etc.
(See the figure), a hook groove 9b which hooks the hook member 9 to the aluminum sash A, etc., and a screw through hole 8c of the magnet plate 8 fitted in the fixing hole 9a. It is provided with a fixing screw 9d that is screwed into a screw fixing hole 1e (see FIG. 1) provided in the center of the surface to integrally fix the main body 1, the magnet plate 8 and the hook member 9.

Referring again to FIG. 2, the thread winder shaft 2 connects one end of the lower thread to the thread stop pin 20a (or a thread stop groove 21c described later) provided on the inner side surface of the thread winder board 20 and also the thread winder board 20. The inside of the rotary shaft 21 integrally molded with is made hollow to communicate with the shaft hole 21a, and the enlarged diameter portion 21b is provided near the main body 1 of the rotary shaft 21.

The thread winding fixing means for the thread winding shaft 2 includes the stop nut 22, a square hole 23 penetrating substantially the center of the main body 1, and a square hole 23 near the rotary shaft 21 of the square hole 23.
It is composed of a circular bearing hole 24 formed in a larger recess and a fixing bolt 25 inserted into the rectangular hole 23 from the rear side of the body 1 in the drawing.

Therefore, the square portion 25a of the fixing bolt 25 is not attached to the square hole 2
3, the circular portion 25b projects from the main body 1 so that the rotary shaft 21 can be rotatably attached through the shaft hole 21a, and the tip screw portion 25c of the fixing bolt 25 can be attached to the inner screw portion 22a of the stop nut 22. When they are engaged and tightened, the thread winding plate 20 is pushed toward the main body 1 side and presses the enlarged diameter portion 21b of the rotating shaft 21 into the circular bearing hole 24. Therefore, the thread winding shaft 2 may be temporarily disabled from rotation. You can

FIG. 4 is a front view showing a usage state of the needle tip portion.

In FIG. 4, the needle tip 4 is attached to the wall surface W of upright wood or the like.
The main body 1 can be easily fixed to the wall surface W by hitting a and 5a and hitting the striking portions 4b and 5b with a hammer or the like. After fixing the main body 1 and loosening the stop nut 22 of the thread winder shaft 2, the lowering thread 3 connecting the weight 6 to the other end naturally descends, so tighten the stop nut 22 with an appropriate length. Fix the sowing shaft 2 to obtain a vertical line. After obtaining the required vertical line, the main needle 1 is grasped and the short needle tip portion 5a is pulled out from the wall surface W, and then the long needle tip portion 4 is rotated while rotating the main body 1.
When a is removed, the main body 1 easily leaves the wall surface W.

FIG. 5 is a front view showing a usage state of the screw means.

In FIG. 5, after attaching the needle tip cover 1A to the main body 1,
By simply screwing the screw means 7 onto the ceiling surface B such as a ceiling plate or a beam, the ceiling position corresponding to the floor surface position P of the partition wall can be easily determined. If the tip 6a of the weight 6 is displaced from the floor surface position P by a distance L, an accurate ceiling position can be obtained by measuring the displaced distance L and shifting the screw means 7 to the right side in the figure by the distance L. It is possible to obtain a simpler and more accurate result than the conventional method in which the main body 1 held on a stepladder is displaced to the left and right and back and forth while searching for the ceiling position corresponding to the floor surface position P.

FIG. 6 is a front view showing a usage state of the accessory.

In FIG. 6, after the screw cap 7a is covered, the magnet plate 8 is attached to the right side of the main body 1 in the figure, and the hook member 9 is attached.
It is fixed integrally with and hooked on aluminum sash A etc.,
Conventionally, an accurate vertical line can be obtained even in a place where the plumb bob cannot be fixed. Further, in a place where a magnet is attracted, such as an iron plate or a steel frame, it is possible to use only the magnet plate 8 fixed to the main body 1.

FIG. 7 is a perspective view showing a state in which the plumb bob of the present invention is arranged.

In FIG. 7, first, the weight 6 is removed by the joint 3a to lighten the lowering thread 3, and then the stop nut 22 is loosened to wind the lowering thread 3 around the thread winding shaft 2 and the screw cap 7a is loosened a little, and the joint 3a After holding or winding the lower thread 3 on the side between the main body 1 and the lower end of the screw cap 7a, the screw cap 7a is tightened to complete the arrangement of the plumb bob. In the figure, the stopping nut 22 is drawn so as to largely project from the thread winding shaft 2, but actually it does not project as much as the figure.

FIG. 8 is a perspective view showing a state in which the plumb bob of the present invention is held by hand.

In FIG. 8, even if there is no place to fix the main body 1, the grip portion 1g formed between the striking portions 4b and 5b with the thumb is used.
The grasping portion 1f formed on the needle tip cover 1A with the little finger,
When the back side of the main body 1 is grasped by sandwiching the screw cap 7 with the index finger, the middle finger, and the ring finger, the main body 1 can be reliably supported even with one hand, so that a more accurate vertical line can be obtained than the conventional plumb bob. it can.

<Effects of Device> This device has at least the following effects due to the above configuration.

The plumb bob according to claim 1, wherein the main body is made of a solid material whose inside is filled with a lightweight material such as a plastic material or an aluminum alloy, and the fixed needle is wrapped to be integrally molded. Can be mass-produced with low manufacturing cost. In addition, since at least two pairs of needle tips having different lengths are provided and the other end side of the fixed needle is exposed to the outside of the main body as a striking portion, the main body can be quickly and reliably fixed at a required position. . In addition, since a screw means for fixing the ceiling is provided, it can be easily fixed to the ceiling, etc., and even when there is no place to fix it, the grasping part, the gripping part and the screw cap formed on the main body can secure it with one hand. It is possible to easily support a vertical line that is more accurate than before.

In the plumb bob according to the second aspect, since the magnet plate is attached to the main body as an accessory, it can be easily fixed to an iron plate or a steel frame which has been difficult to fix in the past.

In the plumb bob according to the third aspect, the hook member can be locked / fixed to an aluminum sash or the like as an accessory.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a front view of an exploded view of essential parts of an embodiment relating to the present invention, FIG. 2 is an exploded perspective view mainly showing its main body, and FIG. Is an exploded perspective view showing the accessory, FIG. 4 is a front view showing the usage state of the needle tip portion, FIG. 5 is a front view showing the usage state of the screw means, and FIG. 6 is a usage state of the accessory. Front view, FIG. 7 is a perspective view showing a state in which the plumb bob of the present invention is arranged, FIG. 8 is a perspective view showing a state in which the plumb bob of the present invention is held by hand, and FIG. It is a perspective view showing a shaker.

Claims (3)

[Scope of utility model registration request] 1. A main body, a thread winding shaft rotatably arranged on the main body, a lowering thread whose one end is fixed to the thread winding axis and whose entire length can be wound around the thread winding axis, and a lowering thread. In a plumb bob consisting of a weight that is connected to an end and forms a vertical line in the vertical direction by rolling down the bobbin, the main body is basically solid, and is used for fixing the ceiling at a predetermined position. It has a screw means and is provided with a screw cap for the screw means so that the lower end side of the lower thread can be temporarily fixed, and both ends are exposed from the main body, and the needle tip provided on the one end side. The parts project from the main body in parallel in the same direction with different lengths, and cover at least one pair of fixed needles integrally fixed to the main body over the entire length excluding both ends and the needle tip part of the fixed needle. And a needle tip cover that has a grasping part, Extend the other end of the constant needle opposite to the needle tip,
In addition, it is equipped with a striking part formed with the protruding column tube as a gripping part, a bolt penetrating the inside of the thread winding shaft and a nut combined with the bolt, and the thread winding shaft is temporarily stopped by tightening these bolts and nuts. And a bobbin swinging means. 2. The plumb bob according to claim 1, wherein the main body is provided with a magnet plate for inserting and supporting the needle tip portion thereof. 3. The plumb bob according to claim 2, wherein the main body is provided with a hook portion for supporting the magnet plate.