JPH08456U - Formwork - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a formwork that allows one-touch assembly of upper and lower formwork without using bolts. [Structure] Each upper and lower peripheral brim formed in the upper and lower metal frames is provided with a fastening hook portion which forms a tightening margin for the upper metal frame, while on the other hand, it is vertically rotatable just below the upper peripheral brim of the lower metal frame. Then, a frame tightening arm having a frame tightening structure is attached to the top portion, and the frame tightening is struck by hitting on the tightening and engaging part so that both upper and lower molds can be tightened and assembled.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a mold used for manufacturing concrete products using upper and lower molds such as concrete retaining stones concrete retaining walls concrete artificial stone blocks.

[0002]

[Prior art]

 In this type of mold, both upper and lower molds must be securely fixed when the upper and lower molds are piled up at the time of manufacturing the product. The means to do is adopted.

[0003]

[Problems to be solved by the device]

 The above-mentioned conventional technique requires a very laborious and time-consuming work of bolting multiple places to fix the upper and lower molds, and naturally, only a pair of molds (upper and lower molds) are used. Since it is not the industry in which the product is manufactured, but it is usually mass-produced by using at least a dozen or more pairs of multiple molds, the work of assembling the molds is also a time-consuming task. In addition, the amount of bolts and screws required to attach the mold framework is large, and it requires a large cost to procure them. In addition, many of these parts in the industry are lost and become consumable items. There is a drawback in that there is a large loss in terms of both work efficiency and economy, such as the need for this expense. Needless to say, the mold manufacturer also has a heavy work load to open the bolt holes, and the unit price of the mold becomes large accordingly. Next, if the concrete poured into the mold is cured, there is work to remove the mold, but this also requires removing all the tightening bolts, which is a major problem such as the work time and cost being large. There is a point. The present invention has been devised and provided for the purpose of reducing the time and economical burden of assembling and disassembling the upper and lower molds and the burden of material cost.

[0004]

[Means for Solving the Problems]

 According to the present invention, in the upper and lower molds, one end of a frame tightening arm having an appropriate length is vertically removably and detachably mounted at an appropriate position on the side surface of the lower mold, and the other end of the frame tightening arm is attached. At the top, the frame clamp is constructed integrally with the arm, and the length of the frame clamp arm is either a fixed steel rod or a free length that conforms to the overall shape and configuration of the mold. On the other hand, the upper frame is provided with a tightening hook portion for tightening the frame at an appropriate position on the upper peripheral brim of the upper mold, and when the frame tighten is hooked on the hook portion. Assembling the upper and lower molds A tightening margin is formed to strengthen the tightening, and the frame tightening arm is rotated upward to tighten the frame tightening formed on the top by hammering. The above-mentioned problems were solved by making it possible to hang on the hooking portion and assemble the upper and lower molds integrally so that they can be tightened.

[0005]

【Example】

 1 and 2 are an explanatory sectional view and a perspective explanatory view of an embodiment of the mold of the present invention. This mold is composed of upper and lower metal frames and a product mold (17) formed therein. Next, the configuration will be described in detail. The upper metal frame (1) and the lower metal frame (2) are provided with peripheral flanges (3) (3 ') (4) (4') having an appropriate width on the upper and lower peripheral edges, respectively. ) The lower edge flange (3 ') and the upper edge flange (4) of the lower metal frame (2) are superposed and used as a pair of metal frames. A product mold is integrally formed with the metal frames (1) and (2) on the inner surface of both metal frames (1) and (2). Therefore, a concrete product having the same shape as this product mold (17) is formed. It is manufactured. On the upper edge flange (3) of the upper metal frame (1), two fastening engaging portions (5) of an appropriate width are provided facing each other, and the tightening engaging portion (5) has a tightening margin (5). 11) is formed so as to incline inward. Immediately below both ends of the tightening hook portion (5), two flanged pillar plates (7) and (7) are provided between the upper edge flange (3) and the lower edge flange (3 '). ), And is arranged in parallel with the upper metal frame (1) at substantially the same interval. Next, regarding the lower metal frame (2), an upper peripheral flange (4) is formed on the upper edge of the lower metal frame (2) and a lower peripheral flange (4 ') is formed on the lower edge. Between the peripheral flanges (4) and (4 '), when the upper metal frame and the lower metal frame are superposed as a pair of molds, the rim support plates (7) and (7) provided in the upper metal frame (1) are symmetrical to each other. At the position, the collar post plates (7 '), (7') are arranged in parallel with the lower metal frame (2) on the outer peripheral surface of the lower metal frame (2). Next, there is a frame fastening arm (6) for fastening both the upper and lower metal frames (1) and (2). The arm (6) is an arm rod (6 ') and its sheath rod (6). ″) And a frame fastening (9) integrally provided in the shape of a letter on the top of the arm rod (6 ′), the arm rod (6 ′) can be expanded and contracted to the sheath rod (6 ″). (20) is the adjusting screw. Further, the sheath rod (6 ″) is located above the brim post plates (7 ′) (7 ′) and is pivoted up and down on both the brim post plates (7 ′) (7 ′) at a position close to the upper peripheral flange (4). (8) is its rotating shaft, which is detachably attached to the collar strut plates (7 '), (7'). The frame tightening arm (6) is not always a sheath rod ( It is not necessary to extend and contract via 6 ″), and the lower end is used as an arm rod whose length is specified so as to match the configuration of the upper and lower metal frames, and the lower end is attached to the collar support plate (7 ′) (7 ′). You may wear it. Next, regarding the structure of the fastening portion (5), as described above, in the present embodiment, the width of the upper peripheral edge collar (3) is slightly wider than the appropriate width, that is, the length of the frame fastening (9). Two places are provided at symmetrical positions, but it is sufficient if the upper and lower frames (1) and (2) can be stably tightened according to the size of the metal frames (1) and (2), and there are two or more places. Of course it is okay. The tightening margin (11) is formed in the portion (5) as described above, but the angle (α) may be appropriately set according to the size of the metal frames (1) and (2). Further, the tightening hooking portion (5) is provided with a fitting notch (10) for the arm rod (6 ') at the center thereof, and the tightening hooking portion (3') (4) is formed. A fitting notch (12) for the sheath rod (6 ″) is provided at a symmetrical position of the fitting portion (5).

[0006]

【Example】

 FIG. 4 is a side view of the frame fastening arm 13 according to the second embodiment of the present invention. In this embodiment, the structure of the upper and lower metal frames (1) and (2) is exactly the same as that of the first embodiment, and the difference is the structure of the frame fastening arm. The frame fastening arm (13) in this embodiment is a frame having a U-shape on the top of the arm rod (6 '), the sheath rod (6 ") and the arm rod (6'). The U-shaped opening width (R) that is composed of the tightening (14) is formed to have substantially the same width as the thickness (H) of the fastening portion (5), and the U-shaped frame tightening (14) A circular arc (16) is formed at the lower end of the upper protruding piece (15). Also, the lower part of the sheath rod (6 ″) can be pivoted up and down and detachably attached to the collar strut plates (7 ′) and (7 ′). It is similar to that of the first embodiment in that it is axially attached. The margins (3) (3 ') (4) (4') formed on the upper and lower metal frames (1) and (2) have the same width.

[0007]

[Function of the invention]

 Since the present invention has the above-mentioned structure, in the first embodiment, the rear lower metal frame (1) and (2) in which the product mold (17) is made of, for example, synthetic resin are formed. 2) The lower peripheral brim (3 ') of the upper metal frame (1) is superposed on the upper peripheral brim (4), and the sheath rod (6 "is provided at two places on the peripheral brim (3') (4). If the fitting notches (10) of () are overlapped, both metal frames (1) and (2) completely overlap each other, so that the metal frames (1) and (2) are vertically and parallelly provided as one unit on the outer peripheral surfaces of the upper and lower metal frames (1) and (2). The collar pillar plates (7) (7) and the collar pillar plates (7 ') (7') have a two-row parallel line shape. The tightening arm (6) is rotated upward and the frame tightening (9) is tapped from the end of the tightening hooking part (5) with a hammer in the direction of the arrow (G) to form the tightening margin (). On the upper surface of 11) By the way, the tightening part (5) tightens inwardly, and the wall thickness of the part increases from the end part toward the inner part. Frame tightening (9) Forcefully pushes down the upper peripheral rim (3), and the pressing force is applied to the lower peripheral rim (3 ') and the upper peripheral rim (4) through the rim strut plates (7) (7), and then the rim strut plate. (7 ') (7'), while the lower peripheral brim (4 ') is mainly the reaction force from the mold placing table (18) placed on the ground or the ground, and the brim support plate (7). ′) (7 ′) and the rotary shaft (8), it is added to the upper peripheral flange (4) and the lower peripheral flange (3 ′). Therefore, the peripheral flanges (3 ′) of the upper and lower frames (1) and (2) are included. ) (4) is strongly pressed from above and below to be tightened.This tightening force is stronger as the frame tightening (9) is hit with a hammer and pushed deeper into the tightening margin (11). Consisting Note is In this framework with work previously A -. It assumed to be adjusted via the Saya桿 (6 ") by arm rods (6 ') of the length of the adjusting screw (20). When the frame tightening arm (6) is rotated upward, the arm rod (6) is in the fitting notch (10) and the sheath rod (6 ″) is in the fitting notch (12). -It is fitted into the sleeve and the frame clamp (9) is easily pushed forward to the inclined upper surface of the tightening engagement part (5) by striking as described above. When the assembly is completed, the product materials such as concrete are put into the mold.When the curing of the materials such as concrete is completed, the frame is removed, but the frame is closed (9). If you hit with a hammer in the direction of the arrow (G ') on the outside of the frame, it will disengage from the fastening part (5) and the upper and lower metal frames (1) and (2) will be disassembled, and the form (A) ( The product can be taken out from inside B) Next, when assembling the upper and lower metal frames (1) and (2) with the frame tightening arm (13) of the second embodiment, the arm rod is used. After adjusting the length of 6 ') with the adjusting screw (20) and the sheath rod (6 "), rotate the frame tightening arm (13) upwards to make the U-shaped frame tighten (14) or hit. By striking the portion (19) with a hammer, the fastening engagement portion (5) is fitted into the opening width (R). In that case, since the tightening margin (11) is formed in the tightening hook (5), a strong pressing force is applied downward to the tightening hook (5). Hereinafter, the action of the force applied to each of the peripheral flanges (3) (3 ') (4) (4') and the flange post plates (7) (7) (7 ') (7') is similar to that of the first embodiment. .

[0008]

[Effect of device]

 The present invention has the above-described structure and action, but when the upper and lower metal frames (1) and (2) are assembled and tightened, the upper surface of the tightening hooking part (5) having the tightening margin (11) is attached. The frame tightening (9) or the frame tightening (14) is pushed up (raised) by the impact force of the hammer, and the frame tightening (9) (14) strongly presses the upper peripheral flange (3) downward. Then, the pressing force is applied to the peripheral flanges (3 ′) (4) via the collar strut plates (7) and (7), and then the formwork mounting table (18 ), And a reaction force against the pressing force is applied to the upper peripheral edge flange (4) through the flange pillar plates (7 ′) (7 ′), so that the lower peripheral edge flange (3) and the upper peripheral edge flange (4) are applied. And are strongly pressed. Therefore, the upper and lower metal frames (1) and (2) are completely assembled and tightened. In order to obtain this strong pressure contact force, in other words, assembling force, as described above, in the first embodiment, the frame tightening (9) of the round steel rod is formed in the shape of a letter at the top of the arm rod (6 '). The position of the lowest edge of the circumference (the lower end of the perpendicular to the diameter of the circle) that is integrally provided is the same as the front edge of the upper surface of the fastening hook (5) by adjusting the length of the arm rod (6 '). The upper end of the upper projecting piece (15) is formed so that it is located at a position or slightly below the center, and in the U-shaped frame tightening (14) of the second embodiment, the lower end of the tip of the U-shaped projecting piece is formed in an arc shape. By adjusting the length of the arm rod (6 '), the position is located at the same position as the front edge of the upper surface of the fastening part (5) or slightly below the center, so both frame tightening (9) ( When hammering is applied to 14) in the direction of the arrow (G), the frame fastening (9) has a circular cross section, and the frame fastening (14) The arc (16) is formed, and the upper and lower surfaces of the flanges (3 ') (4) on both peripheral edges are not precise smooth surfaces but are rough surfaces having irregularities or corrugations, which are usually the plates. Since the thickness is usually not completely constant, and the brim is an iron material, which causes some distortion or bending when a pressing force is applied to its surface, these various elements Therefore, the frame tightening (9) or the frame tightening (14) is easily moved up (pushed up) to the upper surface of the tightening hooking part (5) by the hit. However, since the tightening part (5) has the tightening margin (11), the more the frame tightening (9) (14) is pushed up by hitting, the more the tightening force increases. There is an advantage that the assembly by tightening the upper and lower metal frames (1) and (2) can be extremely simple and strong with one touch. In addition, at the time of unraveling, if a hammer is applied to the frame tightening (9) and (14) in the direction (G ') opposite to that at the time of tightening, the tightening can be easily released and the frame can be unraveled. Therefore, it is very efficient and economical because it eliminates the trouble of bolting and unbolting one by one as in the past, and the frame tightening arm is a metal frame for other products. The (form) also has the advantage that it can be diverted together with its rotating shaft (8).

[Brief description of drawings]

FIG. 1 is an explanatory vertical cross-sectional view of the assembling of upper and lower molds in the first embodiment of the present invention.

FIG. 2 is a perspective explanatory view showing an assembled state of the upper and lower molds in the first embodiment of the present invention.

FIG. 3 is an explanatory cross-sectional view showing a tightening and fastening state of the frame tightening arm in the first embodiment.

FIG. 4 is a side view for explaining a frame fastening arm of the second embodiment.

FIG. 5 is a perspective explanatory view of a fastening engagement portion and a fitting cutout portion.

[Explanation of symbols]

 1 Upper metal frame 2 Lower metal frame 3 Upper peripheral rim (for upper metal frame) 3'Lower peripheral rim (for upper metal frame) 4 Upper peripheral rim (for lower metal frame) 4'Lower peripheral rim (for lower metal frame) 5 Tightening part 6 Frame tightening arm 6'Arm rod 6 "Sheath rod 7 Collar support plate (provided on the upper metal frame) 7'Collar support plate (provided on the lower metal frame) 8 Rotating shaft 9 Frame tightening 10 Fitting notch (provided in tightening hooking part (5)) 11 Tightening margin 12 Fitting notch (for fitting of sheath rod) 13 Frame tightening arm (of the second embodiment) ) 14 frame tightening (of the second embodiment) 15 upper projecting piece (of U-shaped frame tightening) 16 arc (ar) (provided on the upper projecting piece) 17 product type 18 mold placing table 19 striking part 20 adjustment Screw A Upper mold form B Lower mold form α Angle of tightening margin H Thickness of tightening hook end R Opening for U-shaped frame tightening G Clamping impact direction G'Unframe impact direction

Claims (4)

[Scope of utility model registration request] 1. A mold consisting of upper and lower frames, wherein a frame tightening arm having a frame clamp at the top is removably mounted on one of the upper and lower molds in a vertically rotatable and detachable manner, while the other mold is attached. The frame is provided with a fastening engaging portion for fastening the frame integrally with the peripheral brim or the outer peripheral surface of the frame body, and a tightening margin is formed in the engaging portion, the upper and lower frames are overlapped, and the frame fastening arm is rotated. A formwork characterized in that the upper and lower frames are assembled and tightened by tightening a frame on the tightening and engaging part. 2. The formwork according to claim 1, wherein the frame tightening is formed of a round steel rod having an appropriate diameter and length, and is integrally provided in the shape of a letter at the top of the frame tightening arm. 3. The mold according to claim 1, wherein the frame is clamped in a U-shape so that the tightening / engaging portion is sandwiched so as to be assembled and tightened. 4. The formwork according to claim 1, 2 or 3, wherein the frame fastening arm is configured to be expandable and contractible.