JP3038862U - Saw for hard plastic foam cutting - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To cut a hard plastic foam used for fixing roots of flower arrangements in an ikebana easily and cleanly without any danger, and with one-touch danger. Provided is a hard plastic foam cutting saw to which a cutting blade that is not attached can be attached. The end of the A bunch handle 2 to elastic chord member 1 having one end having an opening 1 ₁ of the shape of the fixed, predetermined co, a predetermined length,
The wire-like blade member 3 with a locking fitting 4 having a small hole formed of crimped terminals on both end portions of the rigid wire 3 _1, such as small diameter piano wire, the width of the opening 1 ₁ the reduced state, Elastic string 1
End 1 ₂ of the opening of the small hole of the elastic chord of the end portion 1 ₂ of the front end face 1 ₃ the hard line to the wire guide groove 7 which is recessed in the material 3 ₁ Each anchor fitting 4 with allowed to insert a Inserted into a small screw 6 that is a headed shaft material that is planted on the side opposite to 1 ₁ and a hook-shaped metal fitting 5 that is planted near the end of the handle 2, and wire-shaped in the opening 1 _1. The blade material 3 is stretched.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a saw blade for cutting a hard plastic foam, and more particularly to a saw blade for cutting a hard plastic foam used for fixing roots of cuttings in ikebana.

[0002]

[Prior art]

 Recently, it is possible to change to a sword mountain that fixes the roots and twigs of flowers with ikebana, cut some kind of rigid plastic foam into the required size, and insert the root of the flower etc. It is widely used because it is easy and has a wide range of use. This hard plastic foam for flower cutting (special type expanded polystyrene is used) has the advantages that the foamed part has water absorption and the flower can be easily inserted and cut. Then, knives such as knives are generally used for cutting the hard plastic foam for flower cutting.

[0003]

[Problems to be solved by the device]

 As mentioned above, cutting of hard plastic foam for cutting flowers has been done using knives such as knives, but there is a problem that it will not cut evenly with the cut edge, and it will not cut well, which is dangerous in handling the blade. It was inevitable to accompany. The present invention has been made in view of such circumstances, and when cutting a hard plastic foam for flower cutting, it is possible to cut very easily with a uniform cut cleanly and without danger. An object of the present invention is to provide a thread saw for cutting a hard plastic foam, which can be attached to a cutting blade that is not dangerous even with a one-touch operation.

[0004]

[Means for Solving the Problems]

To achieve the above object, Oite the hard plastic foam cutting jig saw of the present invention includes a bunch handle 2, the formed in shape of the bunch Pattern is fixed at one end to an end portion 2 ₁ and predetermined child co an elastic chord member 1 having elasticity in the width direction of the opening 1 ₁ of the shape and fixed to a pair of locking brackets 4, 4 having a diameter 4 ₁ at both ends of a predetermined length, small diameter hard wire 3 ₁ wire as having a Jo blade member 3, provided with a locking member 5 of the locking fitting 4 on the front of the bunch handle end 2 ₁ near the opening 1 ₁ side of the bunch handle end 2 ₁ and the the openings 1 ₁ in the end portion 1 ₂ of the elastic chord member 1 sandwiching the opening 1 ₁ and the locking member 6 of the locking clasp member 4 provided on the opposite side, the width of the opening 1 ₁ in collapsed state, brought through the hard wire 3 _1, the elastic chord member first end 1 ₂ of the wire guide groove 7 was allowed positioned in the opening 1 ₁ direction to the front Is characterized in that the locking brackets 4,4 of wire-like blade member 3 allowed inserted in the locking members 5, and the wire-like blade member 3 in the opening 1 ₁ as allowed to stretch position There is.

As a result, the elasticity of the elastic string 1 that tries to expand in the width direction of the opening 1 ₁ of the elastic string 1 is locked by the locking members 5 and 6, so that tension is applied between the openings 1 _1. took bridged the hard wire in the state 3 ₁ (e.g. wire diameter 0.2mmφ piano wire or steel wire縒線, such as nylon or polyester fishing line) used, the jig saw cut to be for example rectangular practitioners to By applying and pressing the hard wire 3 ₁ on the side surface of the tile-shaped hard plastic foam for flower cutting, the hard plastic foam 3 can be cut very easily by the hard wire 3 ₁ with a uniform cut surface. be able to. Moreover, instead of the spacing sandwiched by the jigsaw blade locks protruding between the openings of the chord body as in a conventional saw, efficiency is improved by using a hard wire 3 ₁ having a width approximately the entire opening 1 _1. Can be cut well. Also, the small hole 4 ₁ of a pair of locking brackets of both end portions of the rigid wire 3 ₁ 4,4 (good to use a commercially available crimp terminal), in a compressed state the opening interval of the elastic chord member 1, the wire The direction of the hard wire 3 ₁ can be regulated by the guide groove 7, and the locking members 5 and 6 can be satisfactorily locked with one touch.

[0006] predetermined from the Examples locking member 6 of the locking fitting 4 of the wire-like blade member 3 is provided on the end portion 1 ₂ of the elastic chord member 1, the end 1 ₂ of the front end surface 1 ₃ of the elastic chord member 1 using said at a distance the opening 1 ₁ opposite predetermined headed shaft member which is implanted in the surface of the (small screw or the like), the wire guide groove 7 for a hard wire 3 _1, the elastic string body to use first end 1 ₂ of the front end face 1 ₃ grooves having a predetermined center and recessed in the opening 1 ₁ direction of the elastic chord member 1 width is effective. In this case, as the predetermined headed shaft material used for the locking member 6, a small screw may be screwed in and used, a rivet may be press-fitted in, and a hook-shaped metal fitting or the like may be also implanted. Can be used.

[0007] As the engaging member 6 of the elastic chord member first end 1 ₂ wire-like blade member 3 of the locking fitting 4 provided in a predetermined shape that is fitted can be formed on the end portion 1 ₂ bottomed cylindrical member 8 with side predetermined headed shaft member such as that implanted in a predetermined position of the wire ya guide groove 7 of the hard wire 3 _1, the bottom of the bottomed cylindrical member 8 of A groove having a predetermined width is formed in the center of the end face 8 _{1 in the} direction of the headed shaft member 6 so that the bottomed tubular member 8 is fitted to the end part 1 ₁ of the elastic chord body 1 and used. It is good to

Furthermore, the locking member 5 of the anchor fitting 4 of the wire-like blade member 3 provided in the vicinity of the bunch handle end 2 ₁ is referred to as Heaton a predetermined hook bracket (L-shaped bracket and jargon hook-shaped It is better to use metal fittings). By using this hook-shaped metal fitting, it is possible to stably lock the metal fitting with a small hole.

[0009]

[Embodiment of the invention]

 The hard plastic foam cutting saw according to the present invention is a wire saw used as a blade, which is attached to a U-shaped chord having a predetermined opening width in a tensioned state and used. This form will be described with reference to the following two embodiments.

[0010]

【Example】

EXAMPLE 1 FIG. 1 is a side view of a rigid plastic foam cutting wire saws,挾the wire-like blade member 3, and 2 ₁ near bunch handle end, an opening 1 ₁ of the elastic chord member 1 of the U-shaped Nde Zhang skein tighten state is shown between the end 1 ₂ of the elastic chord body 2 ₁ facing該把handle end. Elastic chord member 1, which was to have a resilient by forming a steel having a predetermined diameter (for example 5 mm.phi) in shape of a predetermined co the width direction of the opening 1 ₁ of the U-shaped, on one end (the drawing insert the lower) to the hole formed in the end portion 2 ₁ of the folding and bunch handle 2 (not shown), it is rigidly secured to 2 bunch pattern in a state covered with a metal cap 2a to the end portion 2 ₁ ing. The elastic chord member 1 uses a round steel in the embodiment, of course cross section may be a rectangular steel main must be one having an elasticity in the width direction of the opening 1 _1.

[0011] Elastic sandwiching the bunch handle end 2 ₁ and the opening 1 ₁ of the chord member 1 to the end portion 1 ₂ facing the rigid wire 3 of the wire-like blade member 3 to be described later in the center of its front end face 1 ₃ A wire guide groove 7 for positioning _{1 so} as not to be displaced is provided with a predetermined width (for example, 0.8 mmφ width) in the opening ₁₁ direction (vertical direction in the drawing), and the front end face 1 ₃ at a predetermined distance (e.g. 15 mm), the opening 1 ₁ opposite to the surface a predetermined small screw is shaft member Headed as a locking member of the wire-like blade member 3 (upper face in the drawing) 6 ( For example, 1.2 mmφ) is screwed and planted so that the metal fitting 4 at the end of the wire-shaped blade material 3 is inserted and locked.

Meanwhile, a predetermined position of the front face of the bunch handle end 2 ₁ the opening 1 ₁ side in the vicinity of a predetermined hook-shaped bracket 5 referred to as heater tons parlance is threaded settlers set, wire-like blades also described below The metal fitting 4 at the end of the material 3 is inserted and locked.

The wire-shaped blade member 3 is a pair of locking metal fittings 4 and 4 having small holes 4 ₁ at both ends of a Piano wire 3 ₁ having a small diameter (for example, 0.2 mmφ) and a predetermined length, which is a hard wire member. Are fixed using commercially available crimp terminals (see Fig. 2). Or nylon in place of the piano wire can be used a hard wire 3 ₁ made of Tetron (a polyester). In this case, it is advantageous for rust prevention. Then, the width of the opening 1 ₁ of the elastic chord member 1 in a reduced state, said allowed through the piano wire 3 ₁ to the end portion 1 ₂ of the front end surface 1 ₃ of the wire guide groove 7 of the elastic chord member 1 wire allowed inserted each small hole 4 ₁ of Jo blade member 3 ends of the locking brackets 4,4 in the hook-shaped bracket 5 where the called machine screws 6 and Heaton a locking member, the wire blade member 3 in front Symbol opening in part 1 ₁ so that bridging in a state given tension (see FIG. 3).

[0014] Example 2 FIG. 4 is a side view of another type of rigid plastic foam cutting jig saw, hook-shaped bracket 5 called a wire-like blade member 3, and implanted into 2 near ₁ bunch handle end Heaton If, between the predetermined small screws 6 that is embedded in the end 1 ₂ cap-shaped bottomed tubular member 8 which is fitted to the elastic chord member 1, small diameter (the example 0.2 mm) - a predetermined length piano wire 3 _1, the state which made hank Zhang positioned rectifying so as not to shift the wire guide groove 7 of the bottomed cylindrical member 8 is shown.

[0015] In this example, Example 1 where A is different only in the structure of the locking part relative to the end 1 ₂ of the elastic chord member 1 of the locking fitting 4 of the wire-like blade member 3, the other The constituent parts are the same as in the first embodiment. That is, in the first embodiment, a predetermined small sleep Flip 6 directly end portion is an axial member with the head as a locking member 6 for locking fitting 4 of the wire-like blade member provided on the end portion 1 ₂ of the elastic chord member 1 while being threaded settlers set to 1 _2, while the wire guide groove 7 is recessed directly to the front end surface 1 ₃ of the end portion 1 _2, machine screws 6 to the end portion 1 ₂ in this embodiment The screw hole for screwing in and the wire guide groove 7 are not processed at all, and the bottomed tubular member 8 that caps the end ₁₂ is grouped together with those parts that require processing. to formed, a bottomed cylindrical member 8 to the end portion 1 ₂ in the direction of the wire guide groove 7 and the opening 1 ₁ direction by capping, example 1 and likewise wire-like blade member 3 the is obtained by allowing stretching the opening 1 _1.

The elastic string body first end 1 ₂ bottomed tubular member 8 to be fitted into the end portion 1 ₂ of the elastic chord member 1 on the tube axis is fitted possible bottomed hole 8 those of a predetermined length, a predetermined outer diameter with a _2, a predetermined machine screws 6 as a locking member of the locking fitting 4 is implanted in a predetermined position close to the opening end surface at a predetermined distance from the bottom end face 8 ₁ ing. Further, the bottom end surface ₈₁ groove 7 of a predetermined width at the center in the small screw 6 the direction of the bottomed cylindrical member 8 is recessed. The bottomed tubular member 8 is formed by metal casting, which is advantageous in production, and the machine screw 6 is cast at the same time. As a result, the bottomed tubular member 8 can be machined to make it cheaper in production than screwing the machine screw 6 in, and the position of the machine screw is stable (see FIG. 5).

The attachment of the wire-like blade member 3 is first brought fitted into the hook-shaped bracket 5 planted near bunch handle end 2 ₁ of the small holes 4 ₁ bunch handle 2 of the locking fitting 4 of one end and then, the width of the opening 1 ₁ of the elastic chord member 1 in a reduced state, a bottom which allowed fitted to the direction of the wire guide groove 7 in the end portion 2 ₁ of the pre-elastic chord member 1 in the opening 1 ₁ direction Similarly to the first embodiment, the piano wire 3 ₁ of the wire-shaped blade member 3 is inserted into the wire guide groove 7 of the end face 8 ₁ of the tubular member 8 and the small hole 4 of the locking fitting 4 of the wire-shaped blade member 3 is inserted. may be stretched the wire-like blade member 3 in the opening 1 ₁ allowed inserted _one into small screw 6 implanted in the bottomed cylindrical member 8, also the wire-like blade member 3 after allowed inserted in the same manner as above small hole 4 ₁ bunch handle end 2 ₁ prior Symbol hook-shaped bracket which is implanted in the vicinity of the anchor fitting 4 at one end, a wire guide groove 7 the piano wire 3 ₁ Insert into It allowed reducing the small hole 4 ₁ of a bottomed cylindrical shape to machine screws 6 that is embedded in member 8 fitted brought the state of the elastic chord member 1 of the opening 1 ₁ width of the locking bracket 4 Te, bottomed It may be a cylindrical member 8 so as to stretch the fitted allowed wire-like blade member 3 to the end 1 ₂ of the elastic chord member 1 in the opening 1 ₁ (see FIGS. 4 and 6). In the hard plastic cutting saw according to the second embodiment, the bottomed tubular member 8 with a small screw, which is a shaft member with a head, can be produced inexpensively by casting, and each product of the first embodiment can be machined. A product can be provided more advantageously than one that requires processing.

[0018]

[Effect of the invention]

 According to the hard saw for saw cutting of hard plastic foam of the first aspect of the present invention, the wire-shaped blade material for cutting hard plastic foam can be easily attached to the chord of the saw by one touch. The entire opening of the string can be used effectively, and the hard plastic foam can be cut very easily and neatly by simply pressing it down on the side of the hard plastic foam used for the flower insertion. , There is no danger of cutting and its usefulness is extremely high.

According to the invention of claim 2, a locking member for locking the locking metal fitting of the wire-shaped blade material, and a wire proposal for positioning a hard wire material such as a piano wire with respect to the opening of the chord body of the saw. The inner groove can be easily formed at the end of the elastic chord.

According to the third aspect of the present invention, a locking member for locking the metal fitting of the wire-shaped blade material, and a wire proposal for positioning a hard wire material such as a piano wire with respect to an opening of a chord body of a saw saw. The inner groove can be formed without the need for machining by one part made of a mold to be crown-mounted on the elastic chord end portion, and a product can be provided extremely advantageously during mass production.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment of a saw for cutting a hard plastic foam according to the present invention.

FIG. 2 is a plan view in which a part of a wire blade material is cut.

FIG. 3 is a perspective view of the first embodiment of the present invention.

FIG. 4 is a side view of a hard plastic foam cutting saw according to a second embodiment of the present invention.

FIG. 5 is an enlarged vertical cross-sectional side view of a bottomed tubular member showing an engaged state of a wire blade member with a wire locking metal fitting.

FIG. 6 is a perspective view showing a usage state of a bottomed tubular member for locking a wire.

[Explanation of symbols]

1 ... elastic string, 1 1 ₁ ... opening, 1 ₂ ... end of elastic string,
1 ₃ ... Front end surface of end of elastic chord, 2 ... Handle, 2 ₁ ... Handle end, 3 ... Wire blade, 3 ₁ ... Hard wire, 4 ... Locking metal, 4 ₁ ... Small hole, 5 ... Locking member (hook-shaped metal fitting),
6 ... Locking member (headed shaft material), 7 ... Wire guide groove, 8
... Bottomed tubular member.

Claims (4)

[Utility model registration claims] And 1. A bunch handle 2, an elastic chord member 1 having elasticity in the width direction of the opening 1 ₁ of該把handle end is fixed at one end to the 2 ₁ is formed in shape of a predetermined co U-shaped , A pair of locking metal fittings 4 having small holes 4 ₁ at both ends of a hard wire 3 ₁ having a predetermined length and a small diameter.
And a wire-like blade member 3 which is fixed to 4, wherein the bunch handle end 2 ₁
Provided with a locking member 5 of the locking bracket 4 in front of the opening 1 ₁ side in the vicinity of, the bunch handle end 2 ₁ and the opening 1 ₁
The locking member 6 of the locking bracket 4 on the opposite side of the opening 1 ₁ to the end portion 1 ₂ of the elastic chord member 1 provided sandwiching, the opening 1 ₁
A width in the reduced state, the wire-shaped blade material brought through the hard wire 3 ₁ to the elastic string body first end 1 ₂ of the wire guide groove 7 was allowed positioned in the opening 1 ₁ direction to the front The locking metal fittings 4 and 4 of 3 are inserted into the locking members 5 and 6, and the opening portion
Hard plastic foam cutting jigsaw, characterized in that the wire-like blade member 3 was set to allowed to stretch located 1 _1. 2. A locking member 6 of the locking fitting 4 of the wire-like blade member 3 is provided on the end portion 1 ₂ of the elastic chord member 1, the ends of the elastic chord member 1
A 1 ₂ predetermined headed shaft member from the front end face 1 ₃ and the opening 1 ₁ at a predetermined distance planted on the opposite side of said rigid wire 3 _first wire guide groove 7, the rigid plastic foam cutting according to claim 1, characterized in that a groove of a predetermined width which is recessed in the opening 1 ₁ direction of the elastic chord member 1 to the front end face 1 ₃ center of the end portion 1 ₂ of the elastic chord member 1 Yarn saw. Wherein the elastic engaging member 6 of the anchor fitting 4 of the chord member first end 1 ₂ wire-like blade member 3 provided on the bottom of a predetermined shape which is fitted can be formed on the end portion 1 ₂ a cylindrical member 8 predetermined headed shaft member which is implanted in a predetermined position of the side surface, the hard wire 3 _first wire guide groove 7, the bottom end surface ₈₁ the head in the center of the bottomed cylindrical member 8 a groove having a predetermined width which is recessed in the urging shaft member 6 direction, claims, characterized in that the bottomed cylindrical member 8 so as to fit localized at the end 1 ₁ of the elastic chord member 1 A saw for cutting hard plastic foam according to 1. 4. A bunch handle end 2 ₁ wire-like blade member 3 provided in the vicinity
4. The hard saw for saw cutting of hard plastic foam according to claim 1, 2 or 3, wherein the locking member 5 of the locking metal fitting 4 is a predetermined hook-shaped metal fitting.