JPH0554711U - Concrete formwork clamp for adjusting misalignment of driving formwork - Google Patents

Abstract

(57) [Summary] [Purpose] It is necessary to correct the misalignment of the panel before placing concrete, but in reality, there is no simple correction method,
In particular, if it is found after the mold has been assembled, the correction is extremely difficult. The present invention seeks to solve such problems. [Construction] A nail anchor 1 is provided which is inserted into a through hole a formed in a panel A and is expanded and temporarily fixed by driving a pin 2 thereinto, and a concrete formwork clamp body 3 is detachably attached to the nail anchor. And a through hole a is formed in the misaligned portion of the panel A from the outside to make the nail anchor 1
Insert, insert a pin 2 into the inside of the nail anchor to temporarily expand and fix the nail anchor, connect a concrete formwork clamp tool body 3 to the nail anchor 1, and spread the material to the concrete formwork clamp tool body. Fitting washer 4 and standard flap material B
And the nut 5 is screwed and tightened, and the reaction force pulls the panel A to the outside and contacts the flap material B.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a concrete form clamp for adjusting misalignment of a driving form.

[0002]

[Prior Art]

 BACKGROUND ART Conventionally, in a driving formwork used for constructing an outer wall of a building or the like, when assembling it, a panel is sometimes misaligned to impair the appearance of the building. This misalignment is usually caused by the inward entry of a panel, the outer surface of which should be pressed with flap.

[0003]

[Problems to be solved by the device]

 The misalignment of this panel needs to be corrected before placing the concrete, but in reality there is no simple correction method, and it is extremely difficult to correct it, especially when it is found after the formwork is assembled. is there. The present invention is intended to solve such a problem, and is intended to enable easy and accurate adjustment.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a nail anchor 1 which is inserted into a through hole a formed in a panel A and is internally expanded and temporarily fixed by driving a pin 2 therein, and the nail anchor 1 is provided with a concrete form clamp. The accessory body 3 is detachably connected.

[0005]

[Action]

 Due to the above configuration, at a position where a misalignment occurs in panel A, a horizontal core, that is, an intermediate portion of horizontal B composed of two parallel single tubes, is appropriately drilled to panel A. The nail anchor 1 is inserted into the through hole from the outside, and the pin 2 is driven into the inside of the nail anchor from the outside to appropriately expand and temporarily fix the nail anchor to the panel A. Then, the concrete form clamp fastener main body 3 is connected to the nail anchor 1, the flap washer 4 is fitted to the concrete form clamp fastener main body and brought into contact with the flap B, and By screwing the nut 5 and tightening the washer 4 for the flap material, the panel A is pulled out by the reaction force and brought into contact with the flap material B. In this way, the uniform contact with the flapping material B eliminates the misalignment. After that, concrete is poured inside the panel A, and after the predetermined strength is exhibited, the flutter material and the like are dismantled and removed. At this time, the concrete form fastener main body 3 and the nail anchor 1 are also removed. To remove the nail anchor 1, the pin 2 may be pulled out, the expanded nail anchor may be closed, and the nail anchor may be pulled out toward you. After the extraction, the through hole a is filled with a filling material such as mortar.

[0006]

【Example】

 The drawings show embodiments of the invention. In the figure, 1 is a nail anchor that is inserted into a through hole a formed in the panel A and temporarily fixed, 2 is a pin that is driven into the nail anchor from the outside to expand the nail anchor, and 3 is a nail anchor. The concrete form clamp fastener main body which is detachably screwed to the 4 is a washer for flap material that is detachably fitted to the concrete form clamp fastener body, and 5 is the washer for flap material. A nut that is screwed onto the concrete formwork clamp body to tighten it. In the nail anchor 1, one half of the tubular body 11 in the material axis direction is the insertion portion 12 and the other half is the screw portion 13, and the tip end of the insertion portion is expanded by expanding the pin 2 into the tubular body. We are taking steps. The expanding means inserts several split grooves 14 in the axial direction of the material into the tip portion of the insertion portion, forms the inner diameter of the tip portion into a small diameter, and the pin 2 is driven into the small diameter portion 15. The inner diameter is pushed open and the outer circumference is expanded. Further, a nut 16 is screwed into the screw portion 13, the insertion portion 12 is inserted into a through hole a formed in the panel A, and the tip portion is widened by driving the pin 2. By tightening the nut 16, it is temporarily fixed to the panel A. With the nail anchor 1 thus attached, when the predetermined strength is exhibited in the concrete cast inside the panel A, the pin 2 is pulled out to reduce the expanded tip end portion, and the nail anchor 1 is pulled out to the outside. A rubber cap 6 is fitted to the expanding tip portion of the nail anchor 1. This is to facilitate the extraction of the nail anchor by cutting the edge with the poured concrete. The pin 2 is formed in a nail shape, and its diameter is adapted to the large inner diameter portion of the cylindrical body 11 and at the same time, the length thereof is made slightly longer than that of the cylindrical body 11 so that the vicinity of the head portion 21 is swollen. Forming the stopper 22. This is to prevent over-entry and facilitate withdrawal. The concrete form fastener main body 3 is provided with a female screw portion 32 at one end of a screw rod 31, and the female screw portion is detachably screwed to the screw portion 13 of the nail anchor 1. Further, the other end of the screw rod 31 is crushed to prevent the nut 5 from coming off. The panel A constitutes a driving form, and by being driven and integrated into the surface of the driving concrete while also functioning as a surface material, surface ground work and finishing work are omitted, and removal work is eliminated. However, it aims to reduce the amount of waste wood as much as possible, reduce the amount of industrial waste that is a problem of waste disposal, and reduce the use of timber, which is a problem of deforestation worldwide. Thus, panel A is an extruded cement board having ridges, dovetail grooves, etc., which are driven and joined to the inner surface, and the materials are hydraulic inorganic binder and inorganic or organic fibers and other materials. A mixture of aggregate and water is used, which is fed into an extruder and extruded at high pressure. It is needless to say that the material is not limited to this, and other materials and forming means may be used.

[0007]

[Effect of the device]

 According to the present invention, before pouring concrete, a proper through hole a is formed in the panel A, the nail anchor 1 is inserted into the through hole from the outside, and the pin 2 is driven into the inside of the nail anchor from the outside. By doing so, the nail anchor is appropriately expanded and temporarily fixed to the panel A, so that the nail anchor 1 can be extremely easily attached to the misaligned portion of the panel A from the outside, and the concrete anchor for the nail anchor 1 can be attached to the nail anchor 1. The main body 3 is connected, and the washer material washer 4 is fitted to the main body of the concrete form fastener so as to abut against the material B 1, and the nut 5 is screwed to attach the washer material 4 to the material. Since the panel A is pulled out by the reaction force by tightening it, the misaligned portion of the panel A that has entered the inside can be pulled out very easily and lightly, and this is brought into contact with the flap material B. , Ba To be able to align the timber B to the reference, high can precision yet extremely easy adjustment, it is possible to accurately eliminate the tongue and groove, Ru can be beautiful appearance. Furthermore, after the concrete strength of the cast concrete is developed to a predetermined level, the concrete form clamp tool body 3 and the nail anchor 1 are also removed. To remove the nail anchor 1, pull out the pin 2 and pull it out toward you. The concrete form fitting main body 3 can be removed very easily.

[Brief description of drawings]

FIG. 1 is a side view of a concrete form tightening tool for adjusting misalignment of a driving form according to an embodiment of the present invention, in which the concrete form is clamped.

[Explanation of symbols]

 A panel a Through hole B Lateral 1 Nail anchor 2 Pins 3 Concrete formwork clamp body 4 Washer for flap material 5 Nut 6 Rubber cap 11 Cylindrical body 12 Insert part 13 Screw part 14 Split groove 15 Small diameter part 16 Nut 21 Head 22 Stopper 31 Screw rod 32 Female thread

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Soichi Kitani 21-21 Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Inventor Koichiro Taguchi 8-21, Ginza, Chuo-ku, Tokyo No. 1 Takenaka Corporation Tokyo Main Store (72) Inventor Yoshinori Kobikiyama 21-1-1 Ginza 8-21, Ginza Chuo-ku, Tokyo Shareholder Takenaka Corporation Tokyo Main Store (72) Inventor Yutaka Nakamura Chuo-ku, Tokyo Ginza 8-21-1 Takenaka Corporation Tokyo Main Store (72) Inventor Kouji Ukina Ginza 8-21-1 Ginza Ltd. Chuo-ku, Tokyo Stock Corporation Takenaka Corporation Tokyo Main Store (72) Inventor Umekuni Chapter 2-5-14, Minamisuna, Koto-ku, Tokyo Stock company Takenaka Corporation Technical Research Institute (72) Inventor Nobuyoshi Kamasaki 3-6-2, Nihonbashi, Chuo-ku, Tokyo Asahi Kikai Co., Ltd. (72) inventor Toru Kadono Takanawa, Minato-ku, Tokyo chome No. 24 No. 44 Mitsubishi cement building materials within Co., Ltd. (72) inventor of Iwao Mori Sumida-ku, Tokyo pushed 2-chome No. 8 No. 2 Okabe Co., the company

Claims (1)

[Scope of utility model registration request] 1. A nail anchor 1 for expanding and temporarily fixing by inserting a pin 2 into a through hole a formed in a panel A, and a concrete form fastener main body 3 is attached to the nail anchor. A concrete formwork clamp for adjusting the misalignment of the driving formwork, which is detachably connected.