CN1645031B - Catcher - Google Patents
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- CN1645031B CN1645031B CN2004100704542A CN200410070454A CN1645031B CN 1645031 B CN1645031 B CN 1645031B CN 2004100704542 A CN2004100704542 A CN 2004100704542A CN 200410070454 A CN200410070454 A CN 200410070454A CN 1645031 B CN1645031 B CN 1645031B
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- steel fork
- headtree
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B15/00—Weapons not otherwise provided for, e.g. nunchakus, throwing knives
- F41B15/02—Batons; Truncheons; Sticks; Shillelaghs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Burglar Alarm Systems (AREA)
- Fluid-Damping Devices (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention provides a steel yoke capable of eliminating dangers of being stabed by a knife tool during overmastering a culprit using the knife tool. A steel yoke body (2) is mounted at a front end of a handle portion (1). The steel yoke body (2) includes two rods (21); movable opening/closing rods (23), (23) provided with base ends supported at front end portions of two branching rods (22) of the two rods (21), and only capable of being freely rotated towards an inner side direction of the two rods while being limited to move towards an outer side direction of the two rods; a resetting device (24) by which the two opening/closing rods (23) are rotated and back to original positions by effect of springs and the like; a restricting cord (26) with an end connected with a front end of an opening/closing rod (23) and the other end connected with a front end of the other opening/closing rod (23), and forming a hoop (44) having a proper size at an inner side portion of the two rods. The front ends of the two rods are opened/closed by rotating the two opening/closing rods.
Description
Technical field
The present invention relates generally to a kind of police and waits employed steel fork when compacting convict, ruffian or other person of being pressed.
Background technology
As existing steel fork, for example as shown in figure 12, to be that to be installed in the steel fork that the front end of the shank 101 that is made of expansion link 102 etc. forms be known (for example referring to Patent Document 1～4) for steel fork body 103 that two strands of bars 104 of (being shown as semicircle among the figure) such as semicircle, U font or V fonts constitute by bifurcated, for this existing steel fork, hand-held shank 101 such as police, push down convict's health and suppress with described two strands of bars 104, can restrict the convict thus.
But there is following problems in existing steel fork.(1) because pushing down convict's health, passing through of being configured of existing steel fork suppress the convict, when obstacles such as the wall that does not have building and enclosure wall or fence, can not use effectively, (2), can not prevent convict's etc. motion, when escorting a criminal because in the position of leaving obstacle, worry that the convict runs away, (3) owing to push down health with two strands of bars, though can restrict the motion of health, convict's hand or pin can freely-movables.Thereby, just put on handcuffss in follow-up action, bothersome when when escort operation.When (4) for example holding the convict of cutters such as pocket knife,, putting on handcuffss to the convict, when escorting a criminal, having the danger of being stabbed with cutter by the convict because described convict's wrist portion can be free movable at uniform.
The inventor is in order to address the above problem exploitation steel fork (existing example) hereinafter described.The steel fork that should have example now is the steel fork that the steel fork body has been installed at the front end of shank, the steel fork body comprises two strands of bars, link to each other with two headtree front ends of this bar and in prescribed limit along the movable opening that is oppositely arranged near the free rough ground of departure direction mutually, the restraint device that moves, the end that freely limit above-mentioned two opening when two opening rise and fall predetermined angular link to each other the restriction rope with suitable length that the front end of the other end and other opening conjointly is provided with removing with the leading section of an above-mentioned opening.By above-mentioned two opening are risen and fallen, open and close the front end of two strands of bars, when two opening rise and fall, form hoop (referring to Patent Document 5) by above-mentioned rope.
Should have example now if adopt, under the state of closed two opening, in case the steel fork body is pressed on the target site (for example convict's wrist portion), owing to apply power at the front end of opening by above-mentioned rope, the lodging of two opening forms locking by two strands of bar front ends of described two bars closure the time.And, in case the lodging of above-mentioned two opening forms circumferential band by above-mentioned rope.At this moment, when uniform is held the convict of cutter, in case with the front end pressure holding of steel fork body the wrist portion of cutter is arranged, the lodging of two opening, simultaneously above-mentioned wrist portion enter by in the formed hoop of described rope by locking.Thereby, because the wrist portion of controlling cutter is limited its activity by the formed hoop restriction of rope, can eliminate the danger of being stabbed by cutter, escort a criminal easily.In case with steel fork compacting convict's ankle, by action same as described above, it is interior by locking that ankle enters the formed hoop of described rope, restrained.Thus,, can make revolution about convict etc. simply by operations such as tractive shanks, same as described above, can escort a criminal easily.
But,, still have the leeway of following improved even in this existing example.Just, in existing example, when using, need make the operation of movable opening involution initial position at every turn.And, for example because the complex structure of locking means etc. is required great effort the production cost height during manufacturing.
Patent documentation 1 spy opens flat 7-103695 communique
No. 3089372 communique of patent documentation 2 utility models
No. 3041513 communique of patent documentation 3 utility models
No. 3083227 communique of patent documentation 4 utility models
Patent documentation 5 spies open the 2001-289593 communique
Summary of the invention
In view of the above problems, the purpose of this invention is to provide a kind of steel fork, when effectively using existing example advantage, improve, constitute simply, and, make omission resembles existing example in the operation that opening resets, the convict who holds cutter at uniform can eliminate the danger of being stabbed by cutter when waiting, and can retrain ground, the criminal of escort easily.
To achieve these goals, an invention of the present invention (the 1st invention) is a kind of by shank be arranged on the steel fork that the steel fork body on the described shank forward end is formed, above-mentioned steel fork body comprises two strands of bars with a pair of headtree that is branched into two strands of shapes, a pair of movable opening, resetting means and limit the restraint device that above-mentioned two opening are rotated to the lateral direction of above-mentioned two strands of bars, the base end part of described opening is installed in the leading section of above-mentioned headtree respectively with propping up by axle, and with above-mentioned branch is that fulcrum is oppositely arranged described opening with respect to above-mentioned headtree along heave direction with rotating freely, described resetting means can make above-mentioned two opening along the direction rotation that can stand up with respect to above-mentioned headtree, by the rotation of above-mentioned two opening, open and close the front end of above-mentioned two strands of bars with above-mentioned two opening.
If adopt the 1st invention, by the front end of the closed two strands of bars of two opening.Thereby, two opening limit its motion to two bursts of bar lateral direction (rotation) by restraint device, when bearing the pushing force of side direction in two strands of bars, with described branch is that fulcrum is along the direction rotation of leaving mutually, by the cancellation pushing force, by the effect of resetting means, two opening are returned initial position.Thereby, in case during with the front end neutralizing target position of steel fork body (for example convict's pin or leg), the effect of two opening antagonism resetting means is along the direction rotation of leaving mutually, open the front end (between the front end of two opening) of two strands of bars, target site (pin or leg) is side directed to the inside one of two strands of bars.Thereby after target site passed through between the two opening front ends, two opening were by the effect involution initial position of resetting means, between the front end by the closed two strands of bars of two opening.Thus, target site becomes the state that enters in two strands of bars.
Thus in compacting during the convict, in case with steel fork body compacting convict's leg etc., two opening are along the direction rotation of leaving mutually, and the front end of two strands of bars of unlatching is side directed to the inside one of two strands of bars with leg etc.Thereby by after between the two opening front ends, two opening are resetted by the effect of resetting means at leg etc., and the front end of closed two strands of bars, leg etc. become the state that enters in two strands of bars.Thereby, because convict's leg etc. are restrained, limiting its activity, can escort a criminal easily.And, entering under two strands of states in the bar at leg as described above, the operation by traction shank etc. can make and turn round about the convict, and thus, it is easy that convict's escort becomes.
Other invention of the present invention (the 2nd invention) is a kind of by shank be arranged on the steel fork that the steel fork body on the described shank forward end is formed, above-mentioned steel fork body comprises two strands of bars with a pair of headtree that is branched into two strands of shapes, a pair of movable opening, resetting means, limit the restraint device that above-mentioned two opening are rotated to the lateral direction of above-mentioned two strands of bars, restrictions such as the steel wire rope rope that the other end linked to each other with the front end of another opening and has desired length when one end linked to each other with the front end of an above-mentioned opening, the base end part of described opening is installed in the leading section of above-mentioned headtree respectively with propping up by axle, and with above-mentioned branch is that fulcrum is oppositely arranged described opening with respect to above-mentioned headtree along heave direction with rotating freely, described resetting means makes above-mentioned two opening along the direction rotation that can stand up with respect to above-mentioned headtree, by the rotation of above-mentioned two opening, open and close the front end of above-mentioned two strands of bars with above-mentioned two opening.
If select the 2nd invention for use, the front end by the closed two strands of bars of two opening forms circumferential band in the inside portion of two strands of bars (between two headtrees) by above-mentioned rope.Thereby, two opening limit its motion to two bursts of bar lateral direction (rotation) by restraint device, when bearing the pushing force of side direction in two strands of bars, with described branch is that fulcrum is along the direction rotation of leaving mutually, by the cancellation pushing force, by the effect of resetting means, two opening are returned initial position.Thereby, in case during with the front end neutralizing target position of steel fork body (for example convict's wrist portion or ankle etc.), the effect of two opening antagonism resetting means is along the direction rotation of leaving mutually, open the front end (between the front end of two opening) of two strands of bars, target site (wrist portion or ankle) is side directed to the inside one of two strands of bars.Thereby after target site passed through between the two opening front ends, two opening were by the effect involution initial position of resetting means, between the front end by the closed two strands of bars of two opening.Thus, target site becomes the state that enters in two strands of bars.
When the convict who holds cutter in compacting waited thus, in case hold the wrist portion etc. of cutter with the compacting of steel fork body, two opening were along the direction rotation of leaving mutually, and the front end of two strands of bars of unlatching is side directed to the inside one of two strands of bars with described wrist portion.Thereby by after between the two opening front ends, two opening are resetted by the effect of resetting means in wrist portion etc., the front end of closed two strands of bars, and wrist portion becomes the state in the hoop that enters above-mentioned rope.Thereby, because the wrist portion of holding cutter is limited its activity by the constraint of the hoop of rope, having eliminated the danger of stabbing by cutter, can escort a criminal easily.And when suppressing convict's ankle with the front end of steel fork body, by above-mentioned identical action, the state two that ankle becomes in the hoop that enters rope is restrained, limits its activity.Thus, the operation by traction shank etc. can make and turn round about the convict, and same as described above thus, it is easy that convict's escort becomes.
In the present invention, if resetting means is to have possessed the device that makes the function of two opening involution initial positions when the pushing force of having eliminated above-mentioned two opening, and portion is confined to this structure, for example, can be to constitute with helical spring or traction elastic traction body with rubber manufacturing etc. by traction.In addition, resetting means also can be made of the leaf spring that pushes above-mentioned opening along the direction of standing up with respect to above-mentioned headtree.
In the present invention, possesses the function that restriction two opening rotatablely move to the lateral direction of above-mentioned two strands of bars as restraint device, but be not limited to this structure, for example also can constitute along the confinement plate that contacts with the regulation position of above-mentioned opening when direction rotates to assigned position that resets by the front end that is arranged on above-mentioned two headtrees regularly and in above-mentioned opening.In addition, in the present invention, above-mentioned shank also can be made of the multisection type expansion link.
Description of drawings
Fig. 1 is the integrally-built front view that shows an embodiment of steel fork of the present invention;
Fig. 2 is the view of amplification that shows the steel fork body part of same steel fork, and Fig. 2 A shows that two movable opening are in the front view of closure state, and Fig. 2 B shows that above-mentioned two opening are in the front view of opening;
Fig. 3 is the skiagraph after the part to same steel fork body front end is amplified;
Fig. 4 is the plane after the part to same steel fork body front end is amplified;
Fig. 5 is the schematic diagram after the part with same steel fork body front end is decomposed;
Fig. 6 is a front view that shows the constraint of same steel fork body with the part of rope;
Fig. 7 is the view that is used to show same opening and same rope bonding state;
Fig. 8 is the skiagraph that shows the key component of other embodiment of steel fork of the present invention;
Fig. 9 is the view that shows the key component of other embodiment of steel fork of the present invention, and Fig. 9 A is a skiagraph, and Fig. 9 B is a plane;
Figure 10 is the integrally-built front view that shows other embodiment of steel fork of the present invention;
Figure 11 is the view that shows after the steel fork body part amplification of steel fork shown in Figure 10, and Figure 11 A shows that two movable opening are in the front view of closure state, and Figure 11 B is the front view that above-mentioned two opening are in opening;
Figure 12 is the front view that shows existing steel fork.
Symbol description: 1 shank; 2 steel fork bodies; 21 two strands of bars; 22 headtrees; 23 movable opening; 24 resetting means; 25 restraint devices; 26 constraint ropes; 44 hoops.
The specific embodiment
Hereinafter introduce an example of embodiment of the present invention.
Fig. 1 is the front view that schematically shows an embodiment of steel fork of the present invention, Fig. 2 is the view of amplification that shows the steel fork body part of same steel fork, be respectively to show that two movable opening are in the front view (Fig. 2 A) of closure state and are in the front view (Fig. 2 B) of opening, Fig. 3 is the skiagraph after the part to same steel fork body front end is amplified, Fig. 4 is the plane of same steel fork, Fig. 5 is the schematic diagram after the part with same steel fork body front end is decomposed, Fig. 6 is a front view that shows the constraint of same steel fork body with the part of rope, and Fig. 7 is the view that is used to show identical opening and identical rope bonding state.
In Fig. 1～7, the steel fork of this embodiment (embodiment 1) is made up of shank 1 and the steel fork body 2 that is installed on described shank 1 front end.
Above-mentioned shank 1 is formed by any materials and is fit to diameter and length.The shank 1 of this embodiment 1 is the chimeric and multisection type expansion link 11 that constitutes of pipe 11a, 11b, the 11c of any number that will be made up of aluminum metal, plastics or other material.Though the expansion link 11 among the figure uses three pipe 11a ... 11c adopts the telescopic mode of syllogic to constitute aforementioned tube 11a ... the number of 11c can increase and decrease arbitrarily.
Aforementioned tube 11a ... 11c has at the regulation position and a little touches the button 12 and button combined hole (not shown), when expansion link 11 maximum elongations, above-mentioned button 12 is combined with above-mentioned combined hole, freely constitutes regularly in these position mounting or dismounting.Thereby, on bar 11 pipe 11a foremost, form installation portion 13, as mentioned below, adopt mode such as welding installation portion 13 to be fixedly mounted on the regulation position of two strands of bars 21 of steel fork body 2.Bottom cylindrical shell 14 is installed in the rear end of the maximum gauge pipe 11c of above-mentioned bar 11.And, also can not telescopically constitute shank 1 with a bar.In addition, two strands of bars 21 of shank 1 and steel fork body 2 can be integrally formed.
Above-mentioned steel fork body 2 comprise have the semicircle of being branched into, two strands of bars 21 of a pair of headtree 22,22 of two strands of bars (showing semicircle among the figure) of U font, V font or other shape near the U font; Described two headtrees, 22 leading sections along prescribed direction can rotate freely a pair of movable opening 23,23 that be oppositely arranged; The resetting means 24 that two opening 23 are resetted along the prescribed direction rotation; Limit the restraint device 25 of two opening 23 to the motion (rotation) of prescribed direction; One end link to each other with the front end of an opening 23 and constraint that the other end links to each other with the front end of another opening 23 with rope 26.
Above-mentioned two strands of bars 21 are made by the aluminum metal with suitable diameter and length, plastics or other material, in embodiment 1, are made of the square bar of aluminium.Utilize welding or other means the installation portion 13 of above-mentioned shank 1 to be fixedly mounted in the rear end central portion of two strands of bars 21.Thus, along two headtrees 22 and shank 1 parallel direction is fixedly mounted in steel fork body 2 on the front end of shank 1.
Above-mentioned two opening 23 are made by the aluminum metal with suitable diameter and length, plastics or other material, in embodiment 1, are made of the square bar of aluminium.The front end 23a of two opening 23 is nose circles.
Respectively the base end part of above-mentioned two opening 23 (from cardinal extremity 23b forward end direction side part a little) is installed on the parts of bearings as mentioned below of the leading section that is set at above-mentioned two headtrees 22 by 27 on an axle ground, with axle branch (axle 27) is fulcrum, along heave direction described opening is set with respect to above-mentioned two headtrees 22 with rotating freely.Thereby, by the rotation of two opening 23, open and close the front end of two strands of bars 21 by two opening 23.Just, two opening 23 are stood up, the front end 23a of two opening 23 is during near state (axis of two opening 23 roughly on same straight line time), the front end of closed two strands of bars 21, by two opening 23 from then on state rotate along the lodging directions with respect to headtree 22, two opening 23 are left, and the front end of two strands of bars 21 becomes opening.
By restraint device 25 restriction two opening 23 from the position of closing above-mentioned two strands of bar 21 front ends just the axis of two opening 23 roughly the attitude on same straight line rotatablely move to two bursts of bar 21 lateral direction.Thereby what two opening 23 were configured can only rotate freely (freely rising and falling with respect to headtree) in the position of same axis roughly to the interior side direction of two strands of bars 21 from the axis of two opening 23.
Embodiment 1 comprises a parts of bearings of Zhi Shangshu opening 23 28, parts of bearings 28 is fixedly mounted in installing component 29 on headtree 22 front ends.Show as Fig. 5 is detailed, above-mentioned parts of bearings 28 comprises pair of bearings plate 30,30 and the confinement plate 31 that is set up with the right angle, upper end of diaxon board 30 front with being connected, and described pair of bearings plate 30 has suitable size and to be provided with abreast each other with the corresponding interval of the diameter of headtree 22.The back quadrate part that has axis hole 32,32 on the above-mentioned diaxon board 30 and be arranged in described axis hole 32 simultaneously above-below direction have appropriate intervals and on diaxon board 30 array respect to one another (figure shows two groups) bolt-inserting hole 33,33, described axis hole 32 near the back quadrate part side upper end of described confinement plates 31 and on diaxon board 30 toward each other.
Above-mentioned installing component 29 comprises a pair of installing plate 34,34 and the connecting plate 35 that conjointly is provided with right angle, described two installing plate 34 rear ends, described a pair of installing plate 34 lateral surfaces that be set up and above-mentioned two shaft bearing plates 30 keep certain joint clearance, and have suitable width and length.Above-mentioned two installing plates 34 have bolt-inserting hole 36,36, and described bolt-inserting hole 36,36 is positioned at the leading section side of two installing plates 34 and is arranged on accordingly on two installing plates 34 with above-mentioned bolt-inserting hole 33,33 toward each other.
Above-mentioned two headtrees 22 have bolt-inserting hole 37,37, and described bolt-inserting hole 37,37 is positioned at the leading section of described bar 22 and runs through above-mentioned bar 22 accordingly with above-mentioned bolt-inserting hole 33,33.In addition, above-mentioned two opening 23 have axis hole 38, and described axis hole 38 is positioned at the base end part of described two opening 23 and runs through above-mentioned two opening 23.
Above-mentioned two parts of bearings 28, make above-mentioned confinement plate 31 that above-mentioned two shaft bearing plates 30 are combined with headtree 22 leading sections, while under the outer side state of two strands of bars 21, makes above-mentioned two installing components 29 combine with the lateral surface of diaxon board 30 at above-mentioned connecting plate 35.Thereby under this state, allow screw rod 39 run through above-mentioned each screw thread patchhole 36,33,37 on above-mentioned installing component 29, parts of bearings 28 and the headtree 22, with nut 40 screw-threaded engagement fix.Thus, above-mentioned two bearings parts 28 are arranged on the leading section of two headtrees 22 regularly.
Above-mentioned axis hole 38 is overlapped with the axis hole 32 of above-mentioned parts of bearings 28, the medial surface (lower side among Fig. 3) of the cardinal extremity 23b of two opening 23 is contacted with the front end face of headtree 22, the lateral surface (upper side among Fig. 3) of two opening 23 contacts with the medial surface of above-mentioned confinement plate 31 simultaneously, between the base end part insertion diaxon board 30 with above-mentioned two opening 23.Thereby under this state, making axle 27 run through the above-mentioned axis hole 32 and 38 of parts of bearings 28 and opening 23, above-mentioned opening 23 is fastening by nut element 41 free to rotately, and two opening 23 are installed on the parts of bearings 28.Thereby two opening 23 are by 27 on axle its base end parts, by restraint device 25 just the front end face of confinement plate 31 and headtree 22 limit two opening 23 and rotatablely move to the lateral direction of two strands of bars 21, it only can rotatablely move to the interior side direction of two strands of bars 21.
The restraint device 25 of embodiment 1 is made of the confinement plate 31 of above-mentioned parts of bearings 28 and the front end face of above-mentioned headtree 22.
Above-mentioned resetting means 24 is devices that two opening 23 are resetted along stand up the direction rotation with respect to headtree 22.Fig. 3 has shown the resetting means 24 of embodiment 1 in detail, is made of with helical spring 24a traction.Thereby the end of spring 24a is fastened on by screw 42 on the base end part of opening 23, and the other end is fastened on headtree 22 leading sections by screw 43 and is fit to give spring force to headtree 22 side-linings of cardinal extremity face of opening 23 on the lateral surface of position.Thereby, in case apply the pushing force of side direction in two strands of bars 21 with respect to two opening 23, two opening 23 along with the effect antagonism of spring 24a mutually away from the direction rotation, by removing described pushing force, by the effect of spring 24a, two opening, 23 involution initial positions.
Above-mentioned restriction forms the hoop 44 of suitable size with rope 26 in the inside portion of two strands of bars 21, an end of rope 26 ties up to the leading section of an opening 23, and the other end ties up to the leading section of another opening 23.As shown in Figure 6, the rope 26 of embodiment 1 is made up of the coated tube 46 of the manufacturings such as flexibility synthetic resin of the steel wire rope 45 of suitable length, chimeric described steel wire rope 45.Thereby, with the both ends of above-mentioned steel wire rope 45 pass through be inserted in be set on above-mentioned two opening, 23 leading sections and the through hole 47 vertical with above-mentioned axis hole 38 (as shown in Figure 7, on the outside portion in hole 47, form big footpath hole 47a) in, tightening members such as nut 48 are fixed on the two ends of steel wire rope 45, tightening member 48 is combined with the edge portion of the big footpath hole 47a in above-mentioned hole 47, the two ends of steel wire rope 45 are tied up on two opening 23.
Utilize said structure, when two opening 23 with respect to 22 of headtrees immediately, during just by the front end of two opening, 23 closed two strands of bars 21, form circumferential band 44 in the inside portion of two strands of bars 21 by above-mentioned rope 26.Convict's etc. target site (wrist or ankle etc.) is put into hoop 44 to be retrained.And, designed above-mentioned coated tube 46 at constraint convict time protection convict's etc. wrist or ankle etc.
Because the steel fork of embodiment 1 has said structure, hereinafter introduces the using method and the effect of steel fork.For example, when uniform is held the convict of cutter, in case clampingly the front end of steel fork body 2 is pushed the wrist portion 49 of holding cutter by two headtrees 22, shown in Fig. 2 B, two opening 23 along mutually away from direction rotate, the front end of opening two strands of bars 21 is directed to wrist portion 49 inside portion of two strands of bars 21.Thereby when wrist portion 49 was passed through between the leading section of two opening 23, by the spring action of resetting means 24, two opening 23 resetted, and the front end closure of two strands of bars 21, wrist portion 49 become the state in the hoop 44 that enters rope 26.Thereby the wrist portion 49 of controlling cutter is retrained by the hoop 44 of rope 26, limits its activity, has eliminated the danger of being stabbed by cutter, can easily escort a criminal.For convict's ankle, same as described above, in case the front end of steel fork body 2 is pushed described ankle, by action same as described above, it is restrained that ankle is entered in the hoop of rope 26, limits its activity.Thus, because the operation by traction shank etc. can make and turn round about the convict, same as described above, it is easy that convict's escort can become.
In addition, because the restraint device 25 of embodiment 1 is made of the confinement plate 31 and headtree 22 front end faces of parts of bearings 28, can limit the direction motion (rotation) laterally of two opening 23 reliably.And, can be construed as limiting device more firmly.
And in embodiment 1,, also can adopt parts of bearings 28 and installing component 29 by incorporate structure though show that parts of bearings 28 and installing component 29 are formed respectively.
Fig. 8 is the skiagraph that shows the key component of other embodiment of steel fork of the present invention (embodiment 2).Global facility of having introduced structure in the steel fork of this embodiment and the embodiment 1 etc. uses the same reference numerals to represent, and has omitted explanation.Embodiment 2 is characterised in that the structure of resetting means 24.
Just replace the above-mentioned helical spring 24a of the resetting means 24 of embodiment 1, the resetting means 24 of embodiment 2 is made of the elastic traction body 24b of tractions such as the rubber rope with suitable diameter and length, rubber strip or rubber strip with rubber system.The elastic traction body 24b of embodiment 2 comprises joint portion 24c, 24c at two ends.Thereby, a joint portion 24c is combined on the cardinal extremity face of opening 23 by screw 42, simultaneously another joint portion 24c is fit on the lateral surface of position by the leading section that screw 43 is combined in headtree 22, is applied on the cardinal extremity face of opening 23 to the elastic traction power of headtree 22 1 side-linings.Other structure is identical with embodiment 1.
The steel fork of embodiment 2 is constituted like that by above-mentioned, similarly uses with embodiment 1.Thereby, obtain the effect identical with embodiment 1.
Fig. 9 is the view that shows the key component of other embodiment of steel fork of the present invention (embodiment 3), and Fig. 9 A is a skiagraph, and Fig. 9 B is a plane.Global facility of having introduced structure in the steel fork of this embodiment and the embodiment 1 etc. uses the same reference numerals to represent, and has omitted explanation.Embodiment 3 is characterised in that and adopts leaf spring 50 as resetting means 24.
Embodiment 3 comprises the bearing installing component 51 of above-mentioned parts of bearings 28 of double as and mounting portion 29 integral structures.Installing component 51 comprises a pair of installing plate 52,52; Confinement plate 53 that conjointly is provided with right angle, the front of two installing plates 52 upper end and the connecting plate 54 that conjointly is provided with the right angle, rear end of two installing plates 52, described installing plate 52,52 is with the corresponding spaced and parallel setting of the diameter of above-mentioned headtree 22 and have suitable size.
At above-mentioned connecting plate 54 under the state of the outside portion of two strands of bars 21, above-mentioned two installing plates 52 are combined with the front end of headtree 22, utilize screw 39 and nut 40 to carry out fastening, attaching parts 51 are separately fixed on two headtrees 22, in addition, above-mentioned two opening 23 have axis hole 38 on the base end part of two opening 23.Thereby, the base end part side of above-mentioned two opening 23 is inserted between two installing plates 52 of installing component 51, utilize axle 27 and nut part 41 by above-mentioned axis hole 38, two opening 23 are installed in two opening 23 respectively on two installing plates 52 of above-mentioned installing component 51 by fastening freely to rotate.Thereby two opening 23 support its base end part by axle 27, by the rotational motion of just above-mentioned confinement plate 53 restrictions of restraint device to the lateral direction of two strands of bars 21, only can rotate (freely rising and falling with respect to headtree) to the interior side direction of two strands of bars 21.
The restraint device of embodiment 3 is made of the confinement plate 53 that is arranged on the above-mentioned installing component 51.
The resetting means 24 of embodiment 3 is made of the metal leaf spring 50 of proper width and length.The leaf spring 50 of embodiment 3 comprises roughly at formed a pair of spring leaf 50b, the 50c that is bent to the 50a of flexural spring portion of sub-circular, extends certain-length at the 50a of flexural spring portion of the central portion of spring sheet material.
The 50a of flexural spring portion is arranged between the upper surface of the base end part of above-mentioned opening 23 and above-mentioned headtree 22, spring leaf 50b contacts with the medial surface (downside among Fig. 9 A) of opening 23, and spring leaf 50c contacts with the medial surface of headtree 22.Utilize spring action, give the pushing force that above-mentioned two bars 22,23 leave each other.Thereby above-mentioned two opening 23 are born along the pushing force of the direction of standing up with respect to headtree 22.In Fig. 9, Reference numeral 55 expression is positioned at above-mentioned flexural spring portion 50a appropriate location, across the screw-nut between two installing plates 52 of above-mentioned installing component 51.Other structure is identical with embodiment 1.
Utilize said structure, in case apply the pushing force of side direction in two strands of bars 21 to two opening 23, the effect of two opening, 23 antagonism leaf springs 50 is along the direction rotation of leaving mutually, by removing pushing force, by the effect of leaf spring 50, two opening, 23 involution initial positions.
The steel fork of embodiment 3 has said structure, uses equally with embodiment 1.Thus, realize the effect identical with embodiment 1.
Figure 10 is the integrally-built front view that shows other embodiment of steel fork of the present invention (embodiment 4), Figure 11 is the view that shows after the steel fork body part amplification of steel fork shown in Figure 10, Figure 11 A shows that two movable opening are in the front view of closure state, and Figure 11 B is the front view that above-mentioned two opening are in opening.In this steel fork, use identical Reference numeral to represent the parts public, and omit introduction it with embodiment 1.
The feature of embodiment 4 is to have omitted above-mentioned restriction in the steel fork of embodiment 1 with rope 26.Just the steel fork of embodiment 4 adopts the restriction on the steel fork body 2 that will be arranged on steel fork in the embodiment 1 to pull down with rope 26.In Figure 11 B, Reference numeral 60 is represented target sites (pin or leg) such as convict, and other structure is identical with embodiment 1.
Because the steel fork of embodiment 4 has said structure, hereinafter introduce its using method and effect, for example, when the compacting convict waits, clampingly the front end of steel fork body 2 is pressed on the target sites such as convict (leg etc.) with two headtrees 22, two opening 23 are opened the front end of two strands of bars 21 along the direction rotation of leaving mutually, with leg etc. 60 to the guiding of the inside portion of two strands of bars 21.Thereby leg etc. 60 are by two opening front ends the time, and two opening are by the spring action involution of resetting means, and the front end of closed two strands of bars 21, leg etc. 60 become the state that enters in two strands of bars 21.Thereby convict's etc. leg restricted, limiting its activity, can easily escort a criminal.And enter under two bursts of bar internal states at leg as described above etc., by 1 operation such as grade of tractive shank, can make and turn round about the convict, thus, it is easy that convict's escort becomes.
And in embodiment 4, though resetting means 24 is made of helical spring, self-evident, resetting means 24 also can resemble and be made of with elastic traction body 24b such as rubber systems traction the embodiment 2, or resembles and be made of leaf spring 50 embodiment 3.
Claims (5)
1. steel fork, form by shank and the steel fork body that is arranged on the described shank forward end, above-mentioned steel fork body comprises two strands of bars with a pair of headtree that is branched into two strands of shapes, a pair of movable opening, resetting means, limit the restraint device that above-mentioned two opening are rotated to the lateral direction of above-mentioned two strands of bars, and the end restriction rope that the other end links to each other and has desired length with the front end of another opening when linking to each other with the front end of an above-mentioned opening, the base end part of described opening is installed in the leading section of above-mentioned headtree respectively with propping up by axle, and with above-mentioned branch is that fulcrum is oppositely arranged described opening with respect to above-mentioned headtree along heave direction with rotating freely, resetting means makes above-mentioned two opening along the direction rotation that can stand up with respect to above-mentioned headtree, and above-mentioned steel fork is characterised in that:
Front end fixed installation parts at above-mentioned headtree, rigid bearing parts on this installing component, the base end part rotation of above-mentioned opening is installed on the above-mentioned parts of bearings freely, the base end part side end face of above-mentioned opening is connected by above-mentioned resetting means with the front end of above-mentioned headtree, upper front end at above-mentioned installing component is provided with confinement plate
The base end part side bottom surface of above-mentioned opening and connecing above the front end of above-mentioned headtree from freely connects from freely with the bottom surface of above-mentioned confinement plate above the base end part side of above-mentioned opening,
When the axis of above-mentioned two opening is positioned on the roughly same straight line, the base end part side bottom surface of above-mentioned opening and butt respectively above the front end of above-mentioned headtree, above the base end part side of above-mentioned opening with the bottom surface of above-mentioned confinement plate butt respectively,
Above-mentioned restraint device is made of the front end face of above-mentioned confinement plate and above-mentioned headtree.
2. according to steel fork shown in the claim 1, it is characterized in that: above-mentioned resetting means is made of with helical spring traction.
3. according to steel fork shown in the claim 1, it is characterized in that: above-mentioned resetting means is made of with the elastic traction body traction.
4. according to steel fork shown in the claim 1, it is characterized in that: above-mentioned shank is made of the multisection type expansion link.
5. according to steel fork shown in the claim 1, it is characterized in that: above-mentioned parts of bearings and above-mentioned installing component are integrally formed.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003079099 | 2003-02-14 | ||
| JP200410156 | 2004-01-19 | ||
| JP2004010156A JP3984962B2 (en) | 2003-02-14 | 2004-01-19 | Piercing |
| JP2004-10156 | 2004-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1645031A CN1645031A (en) | 2005-07-27 |
| CN1645031B true CN1645031B (en) | 2010-04-28 |
Family
ID=33134276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100704542A Expired - Fee Related CN1645031B (en) | 2003-02-14 | 2004-08-02 | Catcher |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3984962B2 (en) |
| KR (1) | KR100815336B1 (en) |
| CN (1) | CN1645031B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4611812B2 (en) * | 2005-06-10 | 2011-01-12 | 三和コンベア株式会社 | Captive |
| US7246575B2 (en) * | 2005-06-30 | 2007-07-24 | Porta Industry Co., Ltd. | Thrust fork |
| TWI290337B (en) * | 2005-08-09 | 2007-11-21 | Princo Corp | Pad conditioner for conditioning a CMP pad and method of making the same |
| JP5000908B2 (en) * | 2006-03-28 | 2012-08-15 | 株式会社オーテックジャパン | Rotating slide sheet |
| CN101865634A (en) * | 2010-06-03 | 2010-10-20 | 徐庭中 | High-efficiency multifunctional safety grabber |
| CN101893409A (en) * | 2010-06-29 | 2010-11-24 | 陆宝兴 | Telescopic police steel fork |
| CN101922891B (en) * | 2010-08-12 | 2013-01-30 | 钟庆 | Portable arrest violence preventing device |
| CN107328298B (en) * | 2016-10-31 | 2019-01-11 | 杨钶榕 | One kind is anti-riot to arrest fork |
| CN114279265A (en) * | 2021-12-22 | 2022-04-05 | 陈志贤 | Anti-separation explosion-proof fork for campus security |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3085824U (en) * | 2001-11-05 | 2002-05-24 | 斉 斎藤 | Stab |
| CN2591551Y (en) * | 2002-11-28 | 2003-12-10 | 杨含澄 | Automatic capturing trouble makers electric spontoon |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103695A (en) * | 1993-10-01 | 1995-04-18 | Nobel Kogyo Kk | Forked stretchable control rod |
-
2004
- 2004-01-19 JP JP2004010156A patent/JP3984962B2/en not_active Expired - Lifetime
- 2004-08-02 CN CN2004100704542A patent/CN1645031B/en not_active Expired - Fee Related
- 2004-10-01 KR KR1020040078235A patent/KR100815336B1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3085824U (en) * | 2001-11-05 | 2002-05-24 | 斉 斎藤 | Stab |
| CN2591551Y (en) * | 2002-11-28 | 2003-12-10 | 杨含澄 | Automatic capturing trouble makers electric spontoon |
Non-Patent Citations (1)
| Title |
|---|
| JP昭41-8880Y 1966.04.27 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050076588A (en) | 2005-07-26 |
| CN1645031A (en) | 2005-07-27 |
| JP2004264014A (en) | 2004-09-24 |
| JP3984962B2 (en) | 2007-10-03 |
| KR100815336B1 (en) | 2008-03-19 |
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