Magic hand

Abstract

To provide a magic hand capable of securing a large expansion length and capable of holding an object to be held in a desired expansion length.SOLUTION: This clamping device is provided with a telescopic mechanism part 2 having a tip side 3 and a base side 4, a clamping part 5 provided on the tip side 3 of the telescopic mechanism part 2 for clamping an object to be clamped, and an operation part 6 provided on the base side 4 of the telescopic mechanism part 2 for operating the clamping part 5, and the clamping part 5 is provided with a first clamping member 13 and a second clamping member 14 relatively separable from each other, and a driving part 15 for driving the first clamping member 13 and the second clamping member 14 to separate from each other.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an extendable magic hand. [Background technology]

[0002] Various types of magic hands of this type have been proposed in the past.

[0003] For example, Patent Document 1 discloses a magic hand that includes a cylindrical rod portion, an article gripping portion having a pair of gripping members rotatably attached to the tip of the rod portion, and a handle portion that is provided at the rear end of the rod portion and has a movable grip member that can move in the axial direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2017-202534 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the rod portion of this magic hand consists of two pipes, one with an outer diameter slightly smaller than the inner diameter of the other, and is configured as an extendable rod by fitting one pipe (inner tube) into the other pipe (outer tube).This means that not only is the extension length limited by the length of the two pipes, but there is also the problem that it can only grip objects in an extended state.

[0006] The present invention has been made based on the above circumstances, and its object is to provide a magic hand that can secure a large extension length and can hold an object at a desired extension length. [Means for solving the problem]

[0007] In order to solve the above problems, the magic hand of the present invention comprises an extendable and retractable mechanism having a tip side and a handle side, a clamping part provided on the tip side of the extendable mechanism for clamping an object to be clamped, and an operating part provided on the handle side of the extendable mechanism for operating the clamping part, wherein the clamping part comprises a first clamping member and a second clamping member that can be moved toward and away from each other, and a drive part that drives the first clamping member and the second clamping member toward and away from each other. [Effects of the Invention]

[0008] According to the magic hand of the present invention, a large extension length can be ensured, and an object can be clamped at a desired extension length. [Brief explanation of the drawings]

[0009] The drawings illustrate specific embodiments of the invention according to the present disclosure, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] 1 is a perspective view showing a folded state of a magic hand according to a first embodiment of the present invention. FIG. [Figure 2] FIG. [Figure 3] FIG. 4 is a plan view showing the magic hand in a folded state. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 10 is a perspective view showing a folded state of a magic hand according to a second embodiment of the present invention. [Figure 8] FIG. [Figure 9] FIG. 4 is a plan view showing the magic hand in a folded state. [Figure 10] FIG. [Figure 11] FIG. [Figure 12] FIG. 10 is a perspective view showing a folded state of a magic hand according to a third embodiment of the present invention. [Figure 13] FIG. [Figure 14] FIG. 4 is a plan view showing the magic hand in a folded state. [Figure 15] FIG. [Figure 16] FIG. [Figure 17] FIG. 10 is a perspective view showing a folded state of a magic hand according to a fourth embodiment of the present invention. [Figure 18] FIG. [Figure 19] FIG. 4 is a plan view showing the magic hand in a folded state. [Figure 20] FIG. [Figure 21] FIG. [Figure 22] FIG. 11 is a perspective view showing a folded state of a magic hand according to a fifth embodiment of the present invention. [Figure 23] FIG. [Figure 24] FIG. 4 is a plan view showing the folded and contracted state of the magic hand. [Figure 25] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] First Embodiment A first embodiment of the present invention will be described below with reference to the drawings.

[0011] In FIG. 1, reference numeral 1 denotes a magic hand according to a first embodiment of the present invention.

[0012] As shown in Figures 2 to 4, this magic hand 1 has a freely expandable and contractible extension mechanism 2 formed in a pantograph-type (diamond-shaped) structure that can be freely unfolded and folded, and this extension mechanism 2 has a tip side 3 and a handle side 4 in the extension and contraction direction.

[0013] A clamping section 5 for clamping an object such as an article is provided on the tip side 3 of the extension mechanism section 2, and an operating section 6 for operating the clamping section 5 is provided on the proximal side 4.

[0014] The clamping unit 5 opens and closes in a direction along the extension / contraction surface (folding / unfolding surface) of the extension / contraction mechanism unit 2, and the operating unit 6 is configured to be operated in a direction along the extension / contraction surface (folding / unfolding surface) of the extension / contraction mechanism unit 2.

[0015] That is, the telescopic mechanism 2 has a pair of tip side links 7 on the tip side 3, a pair of hand side links 8 on the hand side 4, and multiple pairs of intermediate links 9 arranged between these tip side links 7 and hand side links 8.

[0016] The distal link 7 is formed to have a length approximately half that of the intermediate link 9, and the proximal link 8 is formed to be longer than the intermediate link 9.

[0017] Further, a handle 10 is formed on each of the pair of proximal links 8.

[0018] Furthermore, a support 11 is pivotally supported on each of the pair of tip side links 7 so as to be rotatable.

[0019] As shown in FIG. 5, the support 11 has a clamping portion 5 attached thereto.

[0020] That is, the clamping unit 5 includes a first clamping member 13 and a second clamping member 14 that can move toward and away from each other, and a drive unit 15 that drives the first clamping member 13 and the second clamping member 14 toward and away from each other.

[0021] The first clamping member 13 has a proximal side 4 fixed to the support 11 and a distal side 3 extending forward in the extension / contraction direction of the extension / contraction mechanism part 2.

[0022] The second clamping member 14 has a proximal side 4 pivotally supported on the support 11 so as to be rotatable, and a distal side 3 which can approach and separate from the first clamping member 13 .

[0023] Furthermore, elastic members 12 are attached to the opposing sides of first clamping member 13 and second clamping member 14, respectively.

[0024] The support body 11 is attached to the tip side link 7 so that the first clamping member 13 and the second clamping member 14 move toward and away from each other in a direction along the extension and contraction surface of the extension and contraction mechanism part 2, thereby configuring the operating direction of the handle 10 and the direction in which the first clamping member 13 and the second clamping member 14 move toward and away from each other to be the same.

[0025] The drive unit 15 also includes a separation spring member 16 that biases the second clamping member 14 in a direction that moves it away from the first clamping member 13, and an approach motor 17 that drives the second clamping member 14 in a direction that moves it closer to the first clamping member 13 against the separation spring member 16. The approach motor 17 is attached to the support body 11, and its driving force is transmitted to the second clamping member 14 via a gear train 18.

[0026] The gear train 18 is composed of a gear 72 attached to the rotating shaft 71 of the approach motor 17, a gear 73 meshed with this gear 72, a gear 74 that rotates integrally with this gear 73, and a gear 75 that meshes with this gear 74 and rotates integrally with the second clamping member 14.

[0027] Furthermore, the operating unit 6 is provided with an approach power supply 19 and an approach switch 20 for driving the approach motor 17, and when the approach switch 20 is turned on, the approach motor 17 is driven to rotate the second clamping member 14 in a direction approaching the first clamping member 13, and when the approach switch 20 is turned off, the spring force of the separation spring member 16 causes the second clamping member 14 to rotate in a direction away from the first clamping member 13.

[0028] Further, the approach motor 17 of the clamping unit 5 and the approach switch 20 of the operating unit 6 are electrically connected by a wire 21 .

[0029] The wiring 21 is hooked to a plurality of hooks 22 provided on the extension / retraction mechanism 2, and is configured to be able to unfold / fold as the extension / retraction mechanism 2 extends or retracts.

[0030] That is, the distal link 7, proximal link 8, and intermediate link 9 of the telescopic mechanism 2 are connected by a plurality of pivots 23 in a rhombus shape so as to be rotatable.

[0031] The plurality of pivot portions 23 are arranged in a central row and in rows on both sides thereof, and the hook portions 22 are rotatably attached to the pivot portions 23 in the central row and one of the outer rows.

[0032] As shown in FIG. 6, the hook portion 22 is provided with insertion holes 24 through which the wires 21 are inserted.

[0033] According to the above configuration, the drive unit 15 of the clamping unit 5 is provided on the tip side 3 of the pantograph-type extension mechanism unit 2, so not only can a large extension length be ensured, but work can also be easily performed at the desired extension length. In addition, the wiring 21 is hung on a hook part 22 attached to the pivot part 23 of the pantograph type telescopic mechanism part 2, and is designed to unfold / fold in accordance with the unfolding / folding of the telescopic mechanism part 2, so that bending of the wiring 21 can be prevented.

[0034] Second Embodiment Next, a second embodiment of the present invention will be described.

[0035] In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and will not be described.

[0036] In the second embodiment, as shown in FIGS. 7 to 10, the clamping unit 5 is configured to move toward and away from the extension / contraction mechanism unit 2 so as to be perpendicular to the extension / contraction surface.

[0037] That is, the clamping unit 5 includes a pair of first clamping member 31 and second clamping member 32 that are pivotally supported on the support body 11, and is driven by a drive unit 33 to move toward and away from each other.

[0038] In addition, the support body 11 is attached to the tip side link 7 so that the first clamping member 31 and the second clamping member 32 move toward and away from each other in a direction perpendicular to the extension and contraction surface of the extension and contraction mechanism part 2, thereby configuring the operating direction of the handle 10 and the direction in which the first clamping member 31 and the second clamping member 32 move toward and away from each other to be perpendicular to each other.

[0039] As also shown in Figure 11, the drive unit 33 includes a gear train 34 that rotates the first clamping member 31 and the second clamping member 32 in opposite directions, a separation motor 35 that drives the first clamping member 31 and the second clamping member 32 in a direction separating them via the gear train 34, and an approach motor 36 that drives the first clamping member 31 and the second clamping member 32 in a direction bringing them closer together via the gear train 34.

[0040] The gear train 34 is composed of a gear 82 attached to the rotating shaft 81 of the separating motor 35, a gear 83 meshing with this gear 82, a gear 84 rotating integrally with this gear 83, a gear 85 meshing with this gear 84 and rotating integrally with the first clamping member 31, a gear 87 attached to the rotating shaft 86 of the approaching motor 36, a gear 88 meshing with this gear 87, a gear 89 rotating integrally with this gear 88, and a gear 90 meshing with this gear 89 and rotating integrally with the second clamping member 32, and further, gear 85 and gear 90 mesh with each other, which causes the first clamping member 31 and the second clamping member 32 to rotate in opposite directions.

[0041] Furthermore, the operating unit 6 is provided with a separation power supply 37 and a changeover switch 38 for driving the separation motor 35 and the approach motor 36, and when the changeover switch 38 is set to the drive side of the separation motor 35, the first clamping member 31 and the second clamping member 32 are rotated in the direction of separation via the gear train 34 by the drive of the separation motor 35, and when the changeover switch 38 is set to the drive side of the approach motor 36, the first clamping member 31 and the second clamping member 32 are rotated in the direction of approach via the gear train 34 by the drive of the approach motor 36.

[0042] Even with this configuration, the same effect as in the first embodiment described above can be achieved, and furthermore, the clamping section 5 is configured to move in and out of contact perpendicular to the extension and contraction surface of the extension and contraction mechanism section 2. Therefore, by using the extension and contraction surface of the extension and contraction mechanism section 2 in the vertical direction, the object to be clamped can be clamped without breaking even when the extension and contraction mechanism section 2 is extended.

[0043] <Third embodiment> Next, a third embodiment of the present invention will be described.

[0044] In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and will not be described.

[0045] In this third embodiment, as shown in Figures 12 to 15, the support body 11 is attached to the tip side link 7 so that the second clamping member 14 moves toward and away from the first clamping member 13 in a direction perpendicular to the extension and contraction surface of the extension and contraction mechanism part 2, thereby configuring the operating direction of the handle 10 and the direction in which the second clamping member 14 moves toward and away from each other perpendicular to each other.

[0046] 16, a drive unit 41 is attached to the support 11 to drive the second clamping member 14 toward and away from the support 11. As shown in FIG.

[0047] This drive unit 41 is equipped with a separation motor 42 that drives the second clamping member 14 in a direction to move it away from the first clamping member 13, and an approach motor 43 that drives the second clamping member 14 in a direction to move it closer to the first clamping member 13, and the driving forces of these separation motor 42 and approach motor 43 are transmitted to the second clamping member 14 via a gear train 44.

[0048] The gear train 44 is composed of a gear 92 attached to the rotating shaft 91 of the separating motor 42, a gear 93 meshed with this gear 92, a gear 94 that rotates integrally with this gear 93, a gear 95 that meshes with this gear 94 and rotates integrally with the second clamping member 14, a gear 97 attached to the rotating shaft 96 of the approaching motor 43, a gear 98 that meshes with this gear 97, a gear 99 that rotates integrally with this gear 98, and a gear 100 that meshes with this gear 99 and gear 95.

[0049] Furthermore, the operating unit 6 is provided with a separation power supply 45 and a separation switch 46 for driving the separation motor 42, and an approach power supply 47 and an approach switch 48 for driving the approach motor 43. When the separation switch 46 is turned on, the separation motor 42 is driven to rotate the second clamping member 14 in a direction away from the first clamping member 13, and when the approach switch 48 is turned on, the approach motor 43 is driven to rotate the second clamping member 14 in a direction approaching the first clamping member 13.

[0050] Even with this configuration, the same effects as in the first embodiment can be achieved.

[0051] <Fourth embodiment> Next, a fourth embodiment of the present invention will be described.

[0052] In the fourth embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof will be omitted.

[0053] In the fourth embodiment, as shown in FIGS. 17 to 21, the clamping unit 5 includes a chain saw 51 and a presser member 52. As shown in FIGS.

[0054] The chain saw 51 has a handle side 4 fixed to a support 11 and a tip side 3 extending forward in the extension and retraction direction of the extension mechanism part 2.

[0055] In addition, the pressing member 52 is pivotally supported on the support body 11 at the proximal side 4 and is configured so that the distal side 3 can be moved toward and away from the chain saw 51, allowing objects to be clamped, such as tall branches, to be pressed against the chain saw 51.

[0056] Further, a drive unit 53 for driving the pressing member 52 to open and close is attached to the support member 11 .

[0057] The drive unit 53 includes a reversible motor 54 for contact and separation, and the driving force of the motor 54 is transmitted to the pressing member 52 via a gear train 55 . The gear train 55 is composed of a gear 102 attached to the rotating shaft 101 of the approach / separation motor 54, a gear 103 meshed with this gear 102, a gear 104 that rotates integrally with this gear 103, and a gear 105 that meshes with this gear 104 and rotates integrally with the second clamping member 14.

[0058] Furthermore, the operating unit 6 is provided with a separation / compartment power supply 56 and a separation / compartment switch 57 for driving the separation / compartment motor 54, and when the separation / compartment switch 57 is operated to rotate the separation / compartment motor 54 forward, the pressure member 52 is rotated in a direction to move closer to the chainsaw 51, and when the separation / compartment motor 54 is rotated in a reverse direction, the pressure member 52 is rotated in a direction to move away from the chainsaw 51. The operating unit 6 is also provided with a power supply 58 for the chainsaw 51 .

[0059] This configuration not only provides the same effects as the first embodiment, but also makes it easier to cut objects to be clamped, such as tall branches.

[0060] Fifth Embodiment Next, a fifth embodiment of the present invention will be described.

[0061] In the fifth embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and will not be described.

[0062] In the fifth embodiment, as shown in FIGS. 22 to 25, a rod 61 extending in the extension / contraction direction of the extension / contraction mechanism 2 is fixed to the support 11.

[0063] The intermediate link 9 is provided with an engaging portion 62 that slidably engages with the rod 61 .

[0064] This allows the orientation of the clamping portion 5 to be regulated so that it always faces the extension / contraction direction as the extension / contraction mechanism portion 2 extends or contracts.

[0065] With this configuration, it is possible to reliably prevent the clamping portion 5 from wobbling.

[0066] It goes without saying that the fifth embodiment may be applied to the first to fourth embodiments.

[0067] The disclosure of the present invention described above can be summarized at least as follows.

[0068] In other words, the magic hand of the present invention comprises an extendable and retractable mechanism having a tip side and a handle side, a clamping section provided on the tip side of the extendable mechanism for clamping an object to be clamped, and an operating section provided on the handle side of the extendable mechanism for operating the clamping section, and the clamping section is characterized by comprising a first clamping member and a second clamping member that can be moved toward and away from each other, and a drive section that drives the first clamping member and the second clamping member toward and away from each other.

[0069] The above invention may include at least the following embodiments, which may be adopted separately or in combination with each other.

[0070] (1) It is preferable that the telescopic mechanism have a pantograph-type structure that can be freely deployed and folded.

[0071] (2) It is preferable that the first clamping member is fixed to the extension mechanism, and the second clamping member is pivotally supported on the extension mechanism so as to be rotatable.

[0072] (3) The first clamping member and the second clamping member may be pivotally supported on the extension mechanism.

[0073] (4) The drive unit may include a separating spring member that biases the first clamping member and the second clamping member in a direction that separates them, and an approach motor that brings the first clamping member and the second clamping member closer together against the biasing force of the separating spring member, and the operating unit may include an approach power source and an approach switch for driving the approach motor.

[0074] (5) The drive unit may include a separating motor that drives the first clamping member and the second clamping member in a direction that moves them apart, and an approaching motor that drives the first clamping member and the second clamping member in a direction that moves them closer together.

[0075] (6) The operating unit may include a separation power supply for driving the separation motor and the approach motor, and a changeover switch for switching between driving the separation motor and driving the approach motor.

[0076] (7) The operating unit may include a separation power supply and a separation switch for driving the separation motor, and an approach power supply and an approach switch for driving the approach motor.

[0077] (8) The first clamping member may be a chain saw for cutting the clamped member, and the second clamping member may be configured to hold down the clamped member.

[0078] (9) The first clamping member and the second clamping member may be configured to move toward and away from each other in a direction along the extension and contraction surface of the extension and contraction mechanism.

[0079] (11) The first clamping member and the second clamping member may be configured to move toward and away from each other in a direction perpendicular to the extension / contraction surface of the extension / contraction mechanism.

[0080] (12) Furthermore, the device may be provided with wiring that electrically connects the drive unit and the operating unit, and the telescopic mechanism may be provided with a hooking portion that hooks the wiring so that it can be unfolded / folded as the telescopic mechanism extends or contracts. [Explanation of symbols]

[0081] 1 Magic Hand 2 Telescopic mechanism section 3 Tip side 4 Hand side 5 Clamping part 6 Control section 13 First clamping member 14 Second clamping member 15 Drive unit 16 Spring member for separation 17 Approach motor 19 Access power supply 20 Approach switch 21 Wiring 22 Latch part 31 First clamping member 32 second clamping member 33 Drive unit 35 Detachment motor 36 Approach motor 37 Power supply for contact / separation 38 Changeover switch 41 Drive unit 45 Power supply for separation 46 Detachment switch 47 Access power supply 48 Approach switch 51 Chainsaw

Claims

1. a telescopic mechanism having a distal end side and a proximal end; a clamping portion provided at the tip side of the extension mechanism portion for clamping an object to be clamped; an operating unit that is provided on the hand side of the extension / contraction mechanism unit and operates the clamping unit; Equipped with The clamping unit includes a first clamping member and a second clamping member that are relatively movable toward and away from each other, and a drive unit that drives the first clamping member and the second clamping member toward and away from each other. A magic hand characterized by

2. 2. The magic hand according to claim 1, wherein the telescopic mechanism has a pantograph structure that can be freely unfolded and folded.

3. 2. The magic hand according to claim 1, wherein the first clamping member is fixed to the extension mechanism, and the second clamping member is pivotally supported on the extension mechanism so as to be rotatable.

4. 2. The magic hand according to claim 1, wherein the first clamping member and the second clamping member are rotatably supported on the extension mechanism.

5. the drive unit includes a separating spring member that biases the first clamping member and the second clamping member in a direction to separate them, and an approaching motor that moves the first clamping member and the second clamping member closer to each other against the biasing force of the separating spring member, the operating unit includes an approach power supply and an approach switch for driving the approach motor, The magic hand according to claim 1 .

6. 2. The magic hand according to claim 1, wherein the drive unit includes a separating motor that drives the first clamping member and the second clamping member in a direction that moves them apart, and an approaching motor that drives the first clamping member and the second clamping member in a direction that moves them closer together.

7. 7. The magic hand according to claim 6, wherein the operation unit includes a contact / separation power supply for driving the separation motor and the approach motor, and a changeover switch for switching between driving the separation motor and driving the approach motor.

8. 7. The magic hand according to claim 6, wherein the operation unit includes a separation power supply and a separation switch for driving the separation motor, and an approach power supply and an approach switch for driving the approach motor.

9. 2. The magic hand according to claim 1, wherein the first clamping member is a chain saw for cutting the object to be clamped, and the second clamping member is configured to hold the object to be clamped.

10. 2. The magic hand according to claim 1, wherein the first clamping member and the second clamping member are configured to move toward and away from each other in a direction along the extension and contraction surface of the extension and contraction mechanism.

11. 2. The magic hand according to claim 1, wherein the first clamping member and the second clamping member are configured to move toward and away from each other in a direction perpendicular to the extension and contraction surface of the extension and contraction mechanism.

12. further comprising wiring electrically connecting the drive unit and the operation unit; The telescopic mechanism includes a hook portion that hooks the wiring so that the wiring can be unfolded / folded in accordance with the telescopic mechanism's extension and contraction. The magic hand according to claim 2 .

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