JPS6217445B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tensioning device used along a wall surface such as a temporary concrete frame.

For example, in concrete construction, mounting bodies for electrical wiring such as outlet boxes and conduit pipes are attached to the wall surface of a temporary concrete frame before concrete is poured. Because the mounting positions of these mounting bodies are far away and out of reach of people, and because the temporary concrete frames are placed side by side at such narrow intervals that it is impossible for people to enter and work on them, it is common practice to With this method, the installation work becomes extremely troublesome. Therefore, in the past, it was unavoidable to install the concrete temporary frame by drilling a hole from the surface side and damaging it, which was extremely troublesome and uneconomical work. equipment was requested. As a result of intensive research, the present inventor has recently discovered, in order to simplify the above-mentioned work, a staple driving structure described later in which the staple for attaching the mounting body is driven into a location far away or a location that cannot be directly reached by human hands. Developed the device. The present invention was made primarily as a result of the development of such a staple driving device.

The object of the present invention is to press an object to be stapled, such as such a staple driving device, against a wall surface.
A further object of the present invention is to reduce the width of the device so that it can be easily inserted into a narrow space such as a space formed by a wall of a temporary concrete frame or the like.

FIGS. 1 and 4 show embodiments in which the tensioning device according to the present invention is specifically applied, and the present invention will be explained based on these embodiments. Reference numeral 21 denotes a pushable operation rod. This operation rod 21 is provided with a protrusion 2, for example, as a locking means for holding it in the pushed state.
It is desirable to have a value of 7. In the case of the example shown in the drawings, the operating rod 21 has a handle 20 at the upper end,
A protrusion 28 is provided below the protrusion 27, and is inserted into the vertically elongated frame 18 along its longitudinal direction.

In FIG. 4, 23 is a curved storage part, which is continuous with the insertion space 23a into which the pushed operating rod 21 is inserted and moved, and is oriented in a direction that is continuous with the insertion space 23a and intersects with the pushing direction. It has a discharge space 23b. In the case of the example shown in the drawings, the insertion space 23a has a stepped portion as shown in FIG. 4, but this may be omitted, and the insertion space 23a
It is curved into a substantially inverted L shape at an angle of about 90 degrees with the center line M of the discharge space 23b and the center line N of the discharge space 23b. Of course, this angle is not limited to 90 degrees, and can be changed in various ways as long as the flexible tension member 19 can be bent and moved inside the storage portion 23 as described later. It is. Moreover, the insertion space 23a and the discharge space 2
Similarly, the size of the radius R of the curved portion with 3b can be changed in various ways as long as the above effect is achieved.
If the straight line portion 23e at the R end shown in FIG. 4 is made longer, it becomes easier to specify the direction in which the tension member projects.

19 is a flexible tension member, which is attached to the storage section 2.
3, and one end 19a is the operating rod 21.
is connected to. The flexible tensioning member 19 moves inside the storage portion 23 while being bent along the push-in of the operating rod 21 . As a result of such movement, the other end 19b side protrudes outward from the discharge space 23b of the storage portion 23, as shown in FIG. Therefore, the flexible tension member 19 according to the present invention
It is necessary to have flexibility so that it can move while being curved along the storage portion 23, and a property that the protruding portion does not sag much when it protrudes outward from the discharge space 23b. From this point of view, it is desirable to use a tightly wound tension coil spring as the flexible tension member 19. However, other members may be used as long as they have the above two properties; for example, a rubber member may be used. In the case of the example shown in the drawings, the flexible tension member 19 has a diameter that is approximately the same as the inner diameter of the storage portion 23;
Further, a contact plate 25 is provided at the other end 19b.

Note that 22 is an insertion hole provided on the upper surface of the frame 18, and as shown in FIG. 3, it consists of a circular hole 22a and a rectangular hole 22b continuous with the circular hole 22a.

When not in use, the protrusion 28 is removed as shown in Figure 1.
is placed against the periphery of the insertion hole 22 and fixed, and the flexible tension member 19 is housed so that it does not protrude outward from the discharge space 23b. When in use, operate the operating rod 2 as shown in Figure 2.
1 into the rectangular hole 22b of the insertion hole 22.
The operating rod 21 is pushed into the frame 18 by passing it through the inside. Along with such pushing, the flexible tension member 1
9 moves inside the storage part 23 while being curved, and the other end 19b side of the flexible tension member 19 projects outward from the discharge space 23b, and the projection 27 is attached to the lower surface of the periphery of the insertion hole 22. By bringing them into contact with each other, the wall surface 29 is pressed in the direction of the arrow X. In addition, protrusion 2
By providing a plurality of tension members 7 at predetermined intervals, the tension distance l of the tension member can be variably fixed. As shown in FIG. 2, if a stretched object O is provided in addition to the tensioning device according to the present invention within the wall surfaces 29 and 29' that face each other, the stretched object O can be placed on the wall surface 29'. The object to be stretched O can be temporarily fixed by pressing.

Therefore, it is convenient to temporarily fix the tensile object O in the space of the temporary concrete frames that are arranged side by side. In other words, the concrete temporary frames used in concrete construction are placed side by side with very narrow intervals that prevent people from entering and working on them, and the position where the object O is temporarily fixed is quite deep. Although it is difficult to temporarily fix the object O to be struck with fingers or the like, in the present invention, the object O can be easily temporarily fixed.

By the way, the main feature of the present invention is that the tension member 19 is made flexible. In other words, if a non-flexible tension member is simply bent into an arc shape, if you try to increase the protrusion amount l (see Figure 2), it will be difficult to store it because it is not flexible. The space increases and the width of the device increases. Conversely, if the width dimension of the device is made smaller, the amount of protrusion l will naturally become smaller. Therefore, it is impossible to satisfy the requirements for device width dimension and protrusion amount l at the same time. In this regard, in the present invention, since the tension member 19 is made flexible as described above, when not in use, the tension member 19 can be moved along the vertically elongated frame 18 as shown in FIG. Therefore, the width dimension T of the device can be made as small as possible, and when in use, the flexible tension member 19 can be bent by its own flexibility as shown in FIG. The quantity l can be increased. In other words, according to the present invention, the contradictory requirements of the width dimension of the device and the protrusion amount l of the flexible tension member can be solved all at once. As described above, in the present invention, since the width dimension T of the device can be reduced, it is suitable for use within the space of temporary concrete frames that are arranged side by side at fairly narrow intervals.

Now, FIGS. 5 and 6 show a staple driving device as an object O to be pressed by the tensioning device according to the present invention, and one of them is a frame body having an insertion hole 2. 4 is a staple held by a staple holding portion 8, which is used to attach a mounting body such as an outlet box or a conduit to a wall surface of a temporary concrete frame or the like. Stepple 4
As shown in FIG. 7, there is a sharp staple tip 4a that is split into two, a T-shaped staple base 4b, and two rectangular sections provided between the staple tip 4a and the staple base 4b. It is composed of a shaped insertion notch 4c. 9 is a wedge-shaped driving part having an inclined surface 10, which is slidable on the frame 1; 13 is an operating rod connected to the wedge-shaped driving part 9 for operating the wedge-shaped driving part 9; This has a spring 15 for automatic return between the grip 14 and the frame 1. and grip 1
4 by vertically moving the wedge-shaped driving part 9.
A blow is applied to the staple 4 with the sloped surface 10 of the wall, thereby driving the staple 4 into the wall surface. The apparatus shown in FIGS. 8 to 10, and the device shown in FIG. 11
The device shown in FIGS. 1 to 13 is a tensioning device that integrally incorporates the staple driving device described above.

FIG. 14 shows a state in which a staple driving device and a separate tensioning device are inserted into the space between the temporary concrete frames serving as the wall surface 29, and in this state, tensioning is performed. Operate the handle 20 of the device and push in the operating rod 21 to release the flexible tension member 19.
is projected and the contact plate 25 is brought into contact with the temporary concrete frame serving as the wall surface 29, thereby pressing the frame 1 of the staple driving device against the temporary concrete frame serving as the wall surface 29'. Incidentally, instead of the contact plate 25, a claw may be provided and the claw may bite into it. FIG. 15 shows a state in which the tension device incorporating the above-mentioned staple driving device is inserted into the space between the temporary concrete frames serving as the wall surface 29, and in this case also, FIG. It has the same effect as the case shown in .

Once the staple 4 has been driven into the temporary concrete frame serving as the wall surface 29 using the tensioning device as described above, it is next time to insert the anchor 41 attached to the conduit 46 into the staple as shown in FIG. 4, or, as shown in FIG. 17, a locking tool 42 attached to an outlet box 47 can be hooked and locked on the staple 4.

In short, the gist of the present invention is as set forth in claim 1, and with this, it is possible to press an object to be stapled, such as a staple driving device, against a wall surface, and furthermore, it is possible to By providing the elastic tension member, the width of the device can be reduced so that it can be inserted into narrow spaces.

[Brief explanation of the drawing]

1 and 2 are longitudinal sectional side views of the tensioning device when not in use and when in use, FIG. 3 is a plan view of the insertion hole portion, and FIG. 4 is a longitudinal sectional side view of the frame. 5 and 6 are longitudinal sectional side views of the staple driving device when not in use and when in use, and FIG. 7 is a perspective view of the staple. 8 to 10 and 11 to 13 are perspective views of a tensioning device in which a staple driving device is integrally incorporated. 14th
15 and 15 are side views showing how to use the tensioning device, respectively, and FIGS. 16 and 17 are side views showing a state in which the locking tool is locked to the staple. In the figure, 19 is a flexible tension member, 21 is an operating rod,
23 is a storage section, 23a is an insertion space, 23b is a discharge space, and 27 and 28 are protrusions serving as locking means.

Claims (1)

[Scope of Claims] 1. (a) An operating rod that is provided so as to be pushable; (b) an insertion space into which the pushed operating rod is inserted; and a discharge space that is continuous with the insertion space and is oriented in a direction that intersects with the pushing direction. and (c) a storage part that is stored in the storage part and has one end connected to an operating rod, and is curved along the inside of the storage part as the operating rod is pushed. A tensioning device that is used along a wall surface and includes a flexible tensioning member that moves and has the other end protruding outward from a discharge space of a storage section. 2. A tensioning device used along a wall surface according to claim 1, wherein the flexible tensioning member is a coil spring. 3. Claim 1, characterized in that the operation rod has a locking means for holding the operation rod in a pushed-in state.
A tensioning device used along the wall surface according to item 1 or 2.