JP4589839B2 - Article pick-up device - Google Patents

Description

  The present invention relates to an article pickup apparatus.

As an article pick-up device, like the golf ball collecting device described in Patent Document 1, a ball catching pin is implanted on the outer periphery of the ball collecting drum, and a plurality of balls scattered on the lawn surface by the rotation of the ball collecting drum. There are some which catch between the tip of the ball catching pin and scrape the caught ball from the ball catching pin with a scraping plate and collect it.
JP2002-129126

  The article pick-up device of Patent Document 1 captures a ball as a non-recovered article between the tip portions of a plurality of capture pins, and the collection certainty is poor. In addition, the non-recovered material needs to have a diameter that is considerably larger than the interval between the plurality of capture pins, and cannot collect the micro article.

  SUMMARY OF THE INVENTION An object of the present invention is to improve collection reliability in an article pickup device and to enable collection of articles of any size.

The invention according to claim 1 is an article in which the pressing roll is disposed on the article introduction side, the scraping roll is disposed on the opposite side of the article introduction side with respect to the pressing roll, and the diameter of the scraping roll is reduced with respect to the pressing roll. The pick-up device has a front wheel and a rear wheel that are in rolling contact with the pick-up surface, and the grounding wire is formed by a straight line connecting the grounding point of the front wheel and the grounding point of the rear wheel. The large diameter projecting to the side that enters the pickup surface, and the large diameter portion that protrudes from the grounding wire of the front and rear wheels at the contact portion between the press roll and scraping roll in contact with the pickup surface and elastically bends. Using a cushion roll as the press roll, the press roll and the scraping roll are rotated in opposite directions during pick-up to deform the press roll. The articles on the guided pickup surface rearward Te, and sandwiched between the scraped and the press roll roll, in which so as to trap led above the pick-up surface by the rotation of both rolls.

(a) A cushion roll is used as the presser roll, and both large and small articles with the maximum diameter of the cushion part of the presser roll are wrapped by deformation of the cushion part and guided to the side of the scraping roll, and the press roll and scrape Since it is sandwiched between the raising rolls, it can be reliably collected without receiving various items on the pickup surface.

  The cushion roll is a sponge roll, a flexible plastic roll, a rubber roll, a roll surface such as a roll made of a nonwoven fabric or a mesh body in which the roll surface is covered with a fiber entanglement layer, and the roll surface is connected in a planar shape over the entire circumference. You can adopt what you have.

(b) An article that has elastically deformed the roll surface of the cushion roll and digged into the surface is blown off from the surface by the elastic restoring force of the surface and collected, or scraped off from the elastically restored surface by a scraper. To be collected.

(c) The press roll and the scoop roll form a contact portion that bites into contact with each other, and the height from the lower end of the contact portion to the pickup surface is smaller than the size of the article to be captured. Accordingly, the article to be taken in is sandwiched between the contact portions of the pressing roll and the scraping roll, and an article having a certain size or more on the pickup surface can be reliably collected.

(d) By reducing the diameter of the scraping roll relative to the pressing roll, the gap between the scraping roll, the pressing roll, and the pickup surface is reduced, and the article on the pickup surface is sandwiched between the pressing roll and the scraping roll. Make it easier.

(e) Since the scraping roll and / or the cushion roll bite into the pickup surface by elastic deformation, the articles on the pickup surface are easily sandwiched between the pressing roll and the scraping roll.

(f) Since the adhesive roll is arranged above the pressing roll and the two rolls come into contact with each other and rotate in the opposite directions at the time of pickup, it can be driven by rotating the adhesive roll along with the rotation of the pressing roll. There is no need for an adhesive roll drive roll. An article collection space such as an article collection unit can be increased.

(g) The article that is sandwiched between the pressing roll and the scraping roll and flipped off can be collected in the article collecting section at the rear of the scraping roll.

(h) Only articles that are larger than the gap between the presser roll and the pick-up surface and between the presser roll and the pick-up roll are guided to the side of the pick-up roll by the presser roll, and are sandwiched between the presser roll and the pick-up roll. I can gather. Articles smaller than the gaps described above are not collected.

Example 1
The pickup device 10 collects articles on the pickup surface 1, for example, articles such as large-size and small-size parts, or articles such as wire rods and sheet materials. As shown in FIGS. A support arm 13 is coupled to the tip of 11 via a left / right swing shaft 12 so as to be swingable in the left / right direction intersecting the pickup direction, and a frame is connected to both side arm portions 13A of the support arm 13 via a front / rear swing shaft 14. 15 is swingably supported in the front-rear direction along the pickup direction.

  In the pickup device 10, hard left and right front wheels 21 and left and right rear wheels 22 (grounding portions) that are in rolling contact with the pickup surface 1 are rotatably provided on both front and rear sides of the frame 15. As shown in FIG. 3, the rotating shaft 21A of the front wheel 21 is supported by a long hole 15A provided along the front and rear in the pickup direction of the frame 15, and the front wheel 21 is moved to the rear side of the long hole 15A when moving forward and when moving backward. It is positioned on the front side of the long hole 15A. The pickup device 10 may be provided with a hard shoe that is in sliding contact with the pickup surface 1 as a grounding portion.

  In the pickup device 10, an elastic pressing roll 30 (pickup roll) and an elastic scraping roll 40 are arranged in parallel on the front and rear along the pickup direction of the frame 15, and both the rolls 30 and 40 are grounded to the front wheel 21 and the rear wheel 22. The diameter is larger than the line (the straight line connecting the grounding point of the front wheel 21 and the grounding point of the rear wheel 22) to the outside (the side entering the pickup surface 1).

  The press roll 30 is disposed on the article introduction side of the frame 15, and is in a range in which the press roll 30 is in contact with the pickup surface 1 over almost the entire region sandwiched between the left and right front wheels 21 and the rear wheel 22 in the lateral direction orthogonal to the pickup direction. Is supported by the rotating shaft 21A of the front wheel 21 supported by the roller and is in contact with the pickup surface 1. The pressing roll 30 is coaxially driven by the rotational force of the front wheel 21 and may be fixedly coupled to the rotating shaft 21A of the front wheel 21, but is rotated by rubbing with respect to the pickup surface 1 and the scraping roll 40. In order to prevent this, the rotary shaft 21A is driven in frictional contact. The pressing roll 30 is made of a material (elastic flexible material) that can elastically bend at least the surface in contact with the pickup surface 1. As the pressing roll 30, a cylindrical sponge roll, an air cushion roll (balloon shape), a flexible plastic roll, a rubber roll, or the like can be adopted, but a cushion roll such as a sponge roll is preferable.

  The scraping roll 40 is disposed on the opposite side to the article introduction side of the pressing roll 30 of the frame 15 and is supported on both sides of the frame 15 in a range aligned with the pressing roll 30 in the lateral direction perpendicular to the pickup direction. It is supported by the rotating shaft 41 </ b> A of the left and right transmission wheels 41 and is in rolling contact with the pickup surface 1. The left and right transmission wheels 41 are rotatably supported behind the left and right front wheels 21, and are driven by the front wheels 21 in contact with the front wheels 21 during forward movement (FIG. 2). The pressing roll 30 driven coaxially to the front wheel 21 and the scraping roll 40 driven to the front wheel 21 via the transmission wheel 41 rotate opposite to each other. As described above, the front wheel 21 at the time of reverse movement moves to the front side of the long hole 15A provided in the frame 15 and moves away from the transmission wheel 41, so that the transmission wheel 41 is not driven and driven (FIG. 3). . The scraping roll 40 is made of a material (elastic flexible material) capable of elastically bending at least the surface in contact with the pickup surface 1. As the scraping roll 40, a cylindrical sponge roll, a flexible plastic roll, a rubber roll, a brush roll, or the like can be adopted. However, a brush roll is preferable in combination with the sponge roll constituting the pressing roll 30.

  The pickup device 10 makes the sum of the radius of the pressing roll 30 and the radius of the scraping roll 40 larger than the distance between the axes of the both rolls 30 and 40 supported by the frame 15, and as a result, both the rolls 30 and 40 are moved. A contact portion is formed that bites into contact with each other by elastic deformation of the contact portion, and the height from the lower end of the contact portion to the pickup surface 1 is made smaller than the size of the article to be taken in by the pressing roll 30 (FIG. 1). ).

  The pick-up device 10 has a pressing roll 30 and a scraping roll 40 in contact with the pick-up surface 1 at the contact portion with the pick-up surface 1, as shown in FIG. The large outer diameter portion protruding from the grounding wire of the front wheel 21 and the rear wheel 22 is largely elastically deformed, and both the rolls 30 and 40 are rotated in opposite directions at substantially the same peripheral speed. Both rolls 30 and 40 bite into each other and are greatly elastically deformed and bitten with respect to the pickup surface 1, and the diameter of the scraping roll 40 is reduced with respect to the pressing roll 30, so that the meeting point A of the both rolls 30 and 40. The dead space (gap) having a triangular shape in side view is substantially eliminated between the pickup surface 1 and the pickup surface 1, and both rolls 30 and 40 meet on the pickup surface 1 with almost no gap.

  Accordingly, when picking up by the pickup device 10, the pressing roll 30 presses the article on the pickup surface 1 so as not to escape while rotating without being rubbed with respect to the pickup surface 1. An article on the pickup surface 1 guided rearward by deforming the pressing roll 30 is sandwiched between the pressing roll 30 and the scraping roll 40 and guided upward from the pickup surface 1 by the rotation of both rolls 30 and 40. When the pinching force is released, the scraping roll 40 is flipped off and collected. That is, the article on the pickup surface 1 pressed by the pressing roll 30 is sandwiched between the two rolls 30 and 40 at the meeting point A between the pressing roll 30 and the scraping roll 40 and picked up from the pickup surface 1. While being pushed out by the elastic restoring force of the pressing roll 30 at the separation point B of both the rolls 30, 40, it is blown off by the elastic restoring force of the scraping roll 40. This article is collected in the article collection unit 50 described later.

  As shown in FIG. 2, the pickup device 10 has a diameter of the pressing roll 30 of 40 mm (the diameter of the front wheel 21 is 34 mm), a diameter of the scraping roll 40 is 25 mm, and the pressing roll 30 and the scraping roll 40 as shown in FIG. The distance L between the shafts is 25 mm, the diameter of the transmission wheel 41 is 16 mm, and the distance H between the center axis of both the rolls 30 and 40 and the pickup surface 1 when the both rolls 30 and 40 are bitten into the pickup surface 1 is 8 to 10mm.

  When a cushion roll is used as the pressing roll 30, the pickup device 10 may be configured such that the thickness of the cushion portion on the surface of the pressing roll 30 is preferably 5 mm or more, and the entire portion excluding the shaft core of the pressing roll 30 is used as the cushion portion. .

  As shown in FIG. 1, the pickup device 10 arranges an article collecting unit 50 at the rear of the frame 15 in the pickup direction with respect to the scraping roll 40. The article collection unit 50 includes a box-shaped article receiving unit 51 that is integral with the frame 15. The lower article holding unit 52 is raised from the lower front part of the article receiving unit 51, and the upper article holding unit 53 is provided at the upper front part. . The lower article stopper 52 has an arc shape along the outer periphery of the scraping roll 40, and the upper article stopper 53 has an arc shape along the outer periphery of the adhesive roll holder 60, which will be described later, when rotating. The lower edge of the stopper 53 is close to the outer periphery of the pressing roll 30. An interval between the upper edge of the lower article stopper 52 and the lower edge of the upper article stopper 53 is an article feeding interval (article feeding port) 54. Articles flipped by the pressing roll 30 and the scraping roll 40 are collected in the article receiving portion 51 via the article feeding port 54.

  The article collecting unit 50 includes a rear lid 55 in the rear opening 51A of the article receiving unit 51 so as to be freely opened and closed. The rear lid 55 has a lower end supported on a support shaft 55 </ b> A provided at a lower rear portion of the article receiving portion 51, and a locking lever 56 provided on the upper end. The locking lever 56 is locked to a locking claw 57 provided on the rear upper part of the article receiving portion 51 by a spring force (not shown) (FIGS. 1 and 6), and is rotated by a manual operation to Is released (FIG. 8). When collecting articles in the article collecting section 50, the rear opening 55A of the article receiving section 51 is closed by the rear lid 55, and when discharging the articles, the rear section of the article receiving section 51 is opened by the rear lid 55 that is opened by the locking lever 56. The opening 51A is opened (FIGS. 7 and 9), and the article is discharged from the rear opening 51A. The article receiving part 51, the rear lid 55, etc. of the article collecting part 50 are preferably made of a transparent material that can visually recognize the collected state of the article.

  In the pickup device 10, an adhesive roll holder 60 is provided on the upper portion of the pressing roll 30 in the frame 15, and the adhesive roll 70 is placed on the pressing roll 30. The adhesive roll 70 is placed on the pressing roll 30 while being set on both roll support shafts 63 and 64 described later of the adhesive roll holder 60 with radial play, and is pressed against the outer periphery of the pressing roll 30 during pickup. Rotate around 30 turns. The pressure-sensitive adhesive roll 70 includes a structure of a winding roll of the pressure-sensitive adhesive sheet 71 or a structure in which the surface is made of a sticky elastomer, and the surface can be cleaned and reused. The pressure-sensitive adhesive roll 70 of this embodiment is constituted by a winding roll in which a pressure-sensitive adhesive sheet 71 is wound around a core 72 and the pressure-sensitive adhesive surface of the pressure-sensitive adhesive sheet 71 can be unwound and cut off. The adhesive roll 70 adheres and captures an article such as a wire or sheet wound around the surface of the pressing roll 30 while rotating with the rotation of the pressing roll 30.

  As shown in FIGS. 14 and 15, the adhesive roll holder 60 includes a window frame 61 having a substantially rectangular frame shape over a range aligned with the pressing roll 30 in the lateral direction perpendicular to the pickup direction on the front upper surface of the frame 15. The rotation cover 62 is rotatably provided on the inner surfaces of the left and right side portions of the window frame 61. The rotary cover 62 has a substantially halved cylindrical body made of a transparent material such as a semicircular arc-shaped cross section or a U-shaped cross section, and has both side walls. A fixed-side roll support shaft 63 is provided on one of the left and right side walls of the rotary cover 62, and a slide-side roll support shaft 64 is provided on the other left and right side walls. The core 72 of the adhesive roll 70 can be freely rotated on both roll support shafts 63, 64. To support.

  In the adhesive roll holder 60, the fixed-side roll support shaft 63 passes through one side wall of the rotation cover 62, and the fixing pin 65 inserted through the one side wall of the window frame 61 is screwed to the fixed-side roll support shaft 63. Then, the fixed roll support shaft 63 is fixed. The rotation cover 62 has a gap between the window frame 61 and the fixed-side roll support shaft 63 and can rotate lightly with respect to the fixed-side roll support shaft 63. The slide-side roll support shaft 64 passes through the other side wall of the window frame 61 and the other side wall of the rotary cover 62. After inserting the spacer 66, the coil spring 67, and the slide plate 68 into the through end, the fixing pin 69 is inserted. The slide side roll support shaft 64 is screwed to fix the slide side roll support shaft 64.

  The adhesive roll holder 60 constitutes an isolating unit that maintains the state in which the pressing roll 30 and the adhesive roll 70 are supported by the frame 15 and switches between the contact state and the non-contact state of both the rolls 30 and 70. Specifically, the adhesive roll holder 60 has a pin 65 and a support shaft 64 as rotation support shafts of the rotation cover 62 that are concentric with the roll support shafts 63 and 64, and the rotation cover 62 is rotated around those rotation support shafts. Open and close can be rotated.

  As shown in FIGS. 10 and 12, the rotary cover 62 is closed so that the front edge flange 62 </ b> A having a half-arc cross section or a U-shaped cross section of the rotary cover 62 abuts on the front upper edge of the window frame 61. In the state positioned, the window frame 61 is closed, the adhesive roll 70 supported by the two roll support shafts 63 and 64 is covered, and the two rolls 30 and 70 are brought into contact. On the other hand, as shown in FIGS. 11 and 13, the window frame 61 is opened and the rotation cover 62 is pressed while the front edge flange 62 </ b> A of the rotation cover 62 is positioned at the open position where it abuts against the upper rear edge of the window frame 61. It is interposed between the roll 30 and the adhesive roll 70 so that the adhesive roll 70 is exposed to the outside world, both the rolls 30 and 70 are brought into a non-contact state, and the core 72 of the old and new adhesive roll 70 is attached to and detached from both roll support shafts 63 and 64. Alternatively, the used pressure-sensitive adhesive sheet 71 of the pressure-sensitive adhesive roll 70 set on both roll support shafts 63 and 64 can be peeled and removed. That is, when the rotary cover 62 moves from the closed position to the open position, the rear edge portion opposite to the front edge flange 62A of the rotary cover 62 is sunk into the outer periphery of the upper portion of the pressing roll 30, thereby causing elastic deflection deformation. It is interposed between the upper outer periphery of the pressed presser roll 30 and the adhesive roll 70. That is, the rotation cover 62 deforms the pressing roll 30 to separate the surface of the pressing roll 30 and the surface of the adhesive roll 70 and switches both the rolls 30 and 70 between a contact state and a non-contact state. As a result, when the rotation cover 62 is opened and the used one turn of the pressure-sensitive adhesive sheet 71 of the pressure-sensitive adhesive roll 70 set on both roll spindles 63 and 64 is to be peeled and removed, the pressure-sensitive adhesive sheet 71 Can be smoothly peeled without sticking to the outer periphery of the pressing roll 30. When the pressure-sensitive adhesive sheet 71 is in a wrapping state for one turn, it can be peeled by one turn after the end of one use. When it is necessary to peel and cut, the peeled end of the pressure-sensitive adhesive sheet 71 can be cut using the front edge or the rear edge of the rotary cover 62.

  As shown in FIG. 14, the adhesive roll holder 60 presses the slide plate 68 against the flange side of the fixed pin 69 with the coil spring 67 in a state where the adhesive roll 70 is set on both roll support shafts 63 and 64. The distance from the one side wall of the window frame 61 opposite to this is reduced, and the axial displacement in which the adhesive roll 70 is detached from the fixing pin 69 is prevented. On the other hand, when the adhesive roll 70 is removed from both roll spindles 63 and 64, the coil spring 67 is compressed by pushing the adhesive roll 70 toward the slide plate 68 (P1) as shown in FIG. Is slid to the other side wall side of the window frame 61, the distance between the slide plate 68 and one side wall of the window frame 61 opposite to the slide plate 68 is increased, and one end of the adhesive roll 70 on the fixed side roll support shaft 63 side is By lifting (P2), the adhesive roll 70 is removed (the same applies to the case where the adhesive roll 70 is attached to both roll support shafts 63 and 64).

The pickup operation by the pickup device 10 is performed as follows.
(1) When the front wheel 21 and the rear wheel 22 are pressed against the pickup surface 1 by the pressing operation force applied to the handle 11 by the pickup device 10, the front wheel 21 moves to the rear side of the long hole 15A of the frame 15 and is transmitted. While firmly contacting the wheel 41, the pressing roll 30 is directly rotated by the rotational force of the front wheel 21, and the rotational force of the front wheel 21 is transmitted to the scraping roll 40 via the transmission wheel 41, and the scraping roll 40 is opposite to the pressing roll 30. Rotate in the direction.

  At this time, the two rolls 30 and 40 bite each other, and the outer diameter portions of the two rolls 30 and 40 contacting the pickup surface 1 are greatly elastically deformed, and in particular, the sponge that moves backward together with the rotating shaft 21A of the front wheel 21. The presser roll 30 is dragged rearward by contact with the pickup surface 1, so that there is almost no gap with the scraping roll 40.

  Thereby, the dead space having a triangular shape in a side view is substantially eliminated between the meeting point A of both rolls 30 and 40 and the pickup surface 1, and both rolls 30 and 40 meet on the pickup surface 1 with almost no gap.

  (2) According to the above (1), the pressing roll 30 presses the article on the pickup surface 1 so as not to escape while rotating without rubbing greatly against the pickup surface 1. The article on the pickup surface 1 pressed by the pressing roll 30 is sandwiched between the rolls 30 and 40 at the meeting point A between the pressing roll 30 and the scraping roll 40 and is picked up from the pickup surface 1 and pressed by the pressing roll. The object is bitten by the cushioning elastic deformation of the surface 30 following the shape of the article, and the article is pushed out by the elastic restoring force of the pressing roll 30 at the separation point B of both the rolls 30 and 40 and the elasticity of the scraping roll 40 It is flipped off by the restoring force and is collected by the article receiving part 51 of the article collecting part 50 via the article delivery port 54.

  Although the press roll 30 does not collect articles due to adhesiveness, the articles attached to the elastically restored surface are scraped off by the lower edge scraper near the outer periphery of the press roll 30. And collected by the article receiver 51.

At the same time, an article such as a wire or sheet wound around the surface of the pressing roll 30 is adhesively captured by the adhesive sheet 71 of the adhesive roll 70 on the pressing roll 30.
Thereby, articles, such as a micro article, a fine wire, and a thin sheet material, are also collected.

  (3) When the pickup device 10 is retracted, the pressing operation force from the pickup surface 1 is released, and the pressing roll 30 and the pick-up roll 40 cause the repulsive force against the pickup surface 1 to lift the front wheel 21 from the pickup surface 1, and The front wheel 21 moves to the front side of the long hole 15A of the frame 15 and moves away from the transmission wheel 41, so that the pressing roll 30 and the scraping roll 40 do not rotate in reverse. Accordingly, the articles taken into the article receiving section 51 of the article collecting section 50 are not discharged from the article receiving section 51 due to the reverse rotation of the pressing roll 30 and the scraping roll 40.

  (4) When it is visually confirmed that a large amount of articles has been collected in the article receiving section 51 of the article collecting section 50, the rear lid 55 is opened and the articles are discharged from the rear opening 51A of the article receiving section 51.

  (5) When it is visually confirmed that a large amount of articles have been captured by the adhesive sheet 71 of the adhesive roll 70, the rotation cover 62 of the adhesive roll holder 60 is opened, and the adhesive sheet 71 for one turn is peeled, cut and removed, and a new adhesive Expose the surface.

According to the present embodiment, the following operational effects can be obtained.
(a) A cushion roll is used as the press roll 30, and a large article and a small article having a maximum diameter of the cushion portion of the press roll 30 are encased by deformation of the cushion portion, guided to the side of the scraping roll 40, and pressed. Since it is sandwiched between the roll 30 and the scraping roll 40, it is possible to reliably collect various kinds of articles on the pickup surface 1 without receiving them.

  (b) The press roll 30 and the scoop roll 40 form a contact portion that bites into contact with each other, and the height from the lower end of the contact portion to the pickup surface 1 is smaller than the size of the article to be captured. Accordingly, the articles are always sandwiched between the contact portions of the pressing roll 30 and the scraping roll 40, and articles of a certain size or more on the pickup surface 1 can be reliably collected.

  (c) By reducing the diameter of the scraping roll 40 relative to the pressing roll 30, the gap between the scraping roll 40, the pressing roll 30, and the pickup surface 1 is reduced, and the article on the pickup surface 1 is pressed. 30 and the scraping roll 40 make it easy to sandwich.

  (d) Since the scraping roll 40 and / or the cushion roll bite into the pickup surface 1 by elastic deflection deformation, the articles on the pickup surface 1 are easily sandwiched between the pressing roll 30 and the scraping roll 40.

  (e) Since the adhesive roll 70 is arranged above the pressing roll 30 and both the rolls 30 and 70 are in contact with each other at the time of pickup and rotate together, the adhesive roll 70 is rotated along with the rotation of the pressing roll 30. Can be driven. The drive roll of the adhesive roll 70 is not particularly required. An article collection space such as the article collection unit 50 can be increased.

  (f) The articles sandwiched between the pressing roll 30 and the scraping roll 40 and flipped off can be collected in the article collecting section 50 at the rear of the scraping roll 40.

In addition, according to a present Example, there exist the following effects.
(a) An adhesive roll holder 60 (separating means) that switches between a contact state and a non-contact state of both rolls 30 and 70 while maintaining the state where the pressing roll 30 and the adhesive roll 70 are supported by the frame 15 is provided. Therefore, when exchanging the adhesive roll 70, the adhesive roll 70 can be removed from the press roll 30 by the adhesive roll holder 60 (isolation means), and then the adhesive roll 70 can be easily removed from the roll spindles 63 and 64. .

  (b) When the used pressure-sensitive adhesive sheet 71 of the pressure-sensitive adhesive roll 70 is peeled and removed while the pressure-sensitive adhesive roll 70 is supported on the pickup device 10, the pressure-sensitive adhesive roll 70 is not contacted from the pressing roll 30 by the pressure-sensitive roll holder 60 (separating means). Then, if the sheet end of the adhesive roll 70 is pulled, the adhesive roll 70 rotates with respect to the roll support shafts 63 and 64, and the used adhesive sheet 71 for one turn can be peeled and removed. At this time, since the adhesive roll 70 is isolated from the pressing roll 30 and can be smoothly rotated, the peelable removal property of the used adhesive sheet 71 is good.

  (c) The adhesive roll holder 60 (separating means) can easily switch between a contact state and a non-contact state between the press roll 30 and the adhesive roll 70 by deforming the press roll 30.

  (d) Since the pressing roll 30 and the scraping roll 40 bite each other and are greatly bent and deformed with respect to the pickup surface 1, a triangular shape is formed between the meeting point A of the both rolls 30 and 40 and the pickup surface 1. The dead space is substantially eliminated, and both rolls 30 and 40 can be assembled on the pickup surface 1 with almost no gap. For this reason, the articles on the pickup surface 1 pressed by the pressing roll 30 are transferred to the meeting point A with the scraping roll 40 without being left over, and are sandwiched between the rolls 30 and 40 at the meeting point A. Articles pushed out by the pressing roll 30 at the separation point B of the rolls 30 and 40 can be collected by being flipped off by the scraping roll 40.

  (e) When an article such as a thin paper sheet that passes under the pressing roll 30 is pushed back by the scraping roll 40 that is rotating in the opposite direction, the pushed-back portion is immediately pressed at the meeting point A of the both rolls 30 and 40. It picks between 30 and 40, is pushed out to the press roll 30 by the separation point B of these both rolls 30 and 40, is flipped off by the scraping roll 40, and is collected.

  (f) A pressing roll 30 made of a cylindrical sponge is softly deformed so as to follow the entire uneven surface of the pickup surface 1 without a gap and presses the article into the uneven pickup surface 1 or a large article on the pickup surface 1 In contrast, the large articles can be pressed softly so as to wrap them, and these articles can be reliably transferred to the side of the meeting point A with the scraping roll 40.

  (g) Articles such as a wire rod and a sheet material are entangled on the surface of the pressing roll 30 made of a cylindrical sponge, and can be collected by adhering to an adhesive roll 70 in contact therewith. When the pressing roll 30 is made of a brush, the wire or the like is entangled with the core of the brush, making it difficult to remove.

  (h) The pressing roll 30 made of a cylindrical sponge can support the adhesive roll 70 and reliably rotate it. When the pressing roll 30 is made of a brush, the brush buckles due to the weight of the adhesive roll 70, and the adhesive roll 70 cannot be rotated.

  In the pickup device 10, the article receiving part 51 of the article collecting part 50 is in close contact with the lower article stopping part 52 rising up along the outer periphery of the scraping roll 40 and the outer periphery of the pressing roll 30. Since the upper article stopper 53 for completely blocking the roll 70 side is provided and the entire area of the article receiving space extending from the article delivery port 54 to the rear lid 55 side is closed, the pressing roll 30 and the scraping roll 40 are Good collection of the items to be flipped.

  Further, the pickup device 10 is not limited to the one in which the pressing roll 30 is directly coupled to the rotating shaft 21 </ b> A of the front wheel 21, but may be one that has a speed increasing gear between the front wheel 21 and the pressing roll 30. Further, the pressing roll 30 is not limited to the one using the rotational force of the front wheel 21 as a drive source, and may be one rotated by another drive source.

(Example 2)
The pickup device 100 collects a golf ball 102 on a pickup surface 101 such as a lawn surface. The left and right front wheels 111 and the left and right rear wheels 112 that are in rolling contact with the pickup surface 101 are placed outside the both sides of the front and rear of the frame 113. Provide. The pickup device 100 can move on the pickup surface 101 by driving the front wheel 111 manually or electrically.

  In the pickup device 100, a pressing roll 120 and a scraping roll 130 are arranged in parallel on the front and rear of the frame 113.

  The holding roll 120 is disposed on the ball introduction side of the frame 113 and is rotatably supported by the axle 111 </ b> A of the front wheel 111 that is penetrated and supported by the left and right sides of the frame 113 between the left and right sides of the frame 113. The pressing roll 120 is a cushion roll such as a sponge roll, and is set between the pickup surface 101 and a gap (a gap smaller than the diameter of the ball 102 and larger than the pebbles 103) according to the size of the object to be collected. Through.

  The scraping roll 130 is disposed at a position on the opposite side of the ball introduction side with respect to the pressing roll 120 in the middle part before and after the frame 113, and the rotary shaft 131 is penetrated and supported by the left and right side parts of the frame 113. The scraping roll 130 is composed of a rubber roller, and a gap (a gap smaller than the diameter of the ball 102 and larger than the pebbles 103) is set between the pickup surface 101 and the pressing roll 120 according to the size of the object to be collected. ) The scraping roll 130 may be in contact with the pressing roll 120, but can pass through a gap smaller than the ball 102. It is preferable that the scraping roll 130 has a smaller diameter than the pressing roll 120. A transmission wheel 132 is fixed to both ends of the rotating shaft 131 that protrudes outside the both sides of the frame 113, and the transmission wheel 132 contacts the front wheel 111.

  The pickup device 100 rotates the pressing roll 120 through the frictional force between the axle 111 </ b> A and the pressing roll 120 by the rotation of the front wheel 111 during pickup. Further, the transmission wheel 132 is rotated by the frictional force between the front wheel 111 and the transmission wheel 132, and the scraping roll 130 connected to the transmission wheel 132 is rotated in the opposite direction to the pressing roll 120. The ball 102 on the pickup surface 101 is pressed against the pressing roll 120 and guided backward while elastically deforming the pressing roll 120, and is sandwiched between the pressing roll 120 and the scraping roll 130, and then both rolls 120. , 130 is guided upward from the pickup surface 101 by the rotation of 130, the pinching force is released, and the pick-up roll 130 blows it off. The scraping roll 130 opens the gap with the pickup surface 101 as described above, and does not take in small dust such as pebbles 103 on the pickup surface 101.

  In the pickup device 100, a ball collecting unit 140 is disposed at the rear part of the pressing roll 120 in the frame 113. The ball collecting unit 140 includes a box-shaped ball receiving unit 141 that is integral with the frame 113, the lower ball holding unit 142 is raised from the lower front portion of the ball receiving unit 141, and the upper ball holding unit 143 is provided at the upper front portion. . The lower ball stopper 142 has an arc shape along the rear outer periphery of the scraping roll 130, and the upper ball stopper 143 is close to the upper outer periphery of the pressing roll 120, and the upper edge of the lower ball stopper 142 and the upper ball stopper 143 A space between the lower edges is a ball feeding port 144. The ball 102 flipped off by the pressing roll 120 and the scraping roll 130 is collected by the ball receiving portion 141 through the ball feeding port 144. Note that the frame 113 continuing in front of the upper ball stopper 143 covers substantially the upper half circumference of the pressing roll 120.

  The ball collecting unit 140 includes a rear lid 145 that can be opened and closed at a rear opening 141A of the ball receiving unit 141. When collecting the ball in the ball collecting section 140, the rear opening 141A of the ball receiving section 141 is closed by the rear cover 145, and when discharging the ball, the rear opening 141A is opened by the rear cover 145 that is manually opened and discharged. To do. The ball collecting unit 140 is preferably made of a transparent material that can visually recognize the ball collecting state.

According to the present embodiment, the following operational effects can be obtained.
(a) A cushion roll is used as the presser roll 120, and the ball 102 having the maximum diameter of the cushion part of the presser roll 120 is wrapped by deformation of the cushion part, guided to the side of the scraping roll 130, and the presser roll 120 and Since it is pinched by the scraping roll 130, the ball 102 on the pickup surface 101 can be reliably collected.

  (b) The ball 102 sandwiched between the press roll 120 and the scooping roll 130 and thrown away can be collected in the ball collecting section 140 at the rear of the scooping roll 130.

  (c) Only the articles larger than the gap between the pressing roll 120 and the pickup surface 101 and the gap between the pressing roll 120 and the pick-up roll 130 are guided to the side of the pick-up roll 130 by the pressing roll 120, and the pressing roll 120 Can be caught and collected by the scraping roll 130. Articles smaller than the gaps described above are not collected.

FIG. 1 is a cross-sectional view showing a pickup device. FIG. 2 is a side view showing a forward movement state of the pickup device. FIG. 3 is a side view showing the retracted state of the pickup device. FIG. 4 is a front view showing the pickup device. FIG. 5 is a cross-sectional view taken along line V-V in FIG. FIG. 6 is a perspective view showing a closed state of the rear lid of the article collecting unit. FIG. 7 is a perspective view showing a rear cover open state of the article collecting portion. FIG. 8 is a cross-sectional view showing a state where the rear lid locking is released from the article collecting portion. FIG. 9 is a cross-sectional view showing the rear cover open state of the article collecting part. FIG. 10 is a perspective view showing a cover closed state of the adhesive roll holder. FIG. 11 is a perspective view showing a cover open state of the adhesive roll holder. FIG. 12 is a cross-sectional view showing a cover closed state of the adhesive roll holder. FIG. 13 is a cross-sectional view showing a cover open state of the adhesive roll holder. FIG. 14 is a cross-sectional view showing a set state of the adhesive roll. FIG. 15 is a cross-sectional view showing a state where the adhesive roll is attached and detached. FIG. 16 is a cross-sectional view showing the pickup device.

Explanation of symbols

10 Pickup device
21 Front wheel
22 Rear wheel 30 Presser roll (cushion roll)
40 Scraping roll 50 Article collecting unit 70 Adhesive roll 100 Pickup device 120 Pressing roll (cushion roll)
130 scraping roll 140 ball collecting part

Claims (10)

An apparatus for picking up an article in which a press roll is arranged on the article introduction side, a scraping roll is arranged on the side opposite to the article introduction side with respect to the press roll, and the diameter of the scraping roll is reduced with respect to the press roll ,
The pickup device has a front wheel and a rear wheel that are in rolling contact with the pickup surface,
The scraping roll and presser roll have a large diameter that protrudes toward the pickup surface rather than a ground line consisting of a straight line connecting the ground point of the front wheel and the ground point of the rear wheel,
The press roll and scraping roll in contact with the pickup surface are elastically bent and deformed at the contact portion with the pickup surface, with the large diameter portion protruding from the grounding wire of the front and rear wheels,
Use a cushion roll as a holding roll,
When picking up, rotate the press roll and scraping roll opposite each other,
An article pick-up device for picking up an article on a pickup surface, which is guided rearward by deforming a holding roll, between the holding roll and a scraping roll and guiding the article upward from the pickup surface by the rotation of both rolls.   The article pick-up device according to claim 1, wherein the cushion roll causes the article to bite by elastic deformation of the surface following the shape of the article to be collected and allows the article to be discharged by elastic restoration of the surface. An apparatus for picking up an article in which a press roll is arranged on the article introduction side, a scraping roll is arranged on the side opposite to the article introduction side with respect to the press roll, and the diameter of the scraping roll is reduced with respect to the press roll ,
The pickup device has a front wheel and a rear wheel that are in rolling contact with the pickup surface,
The scraping roll and presser roll have a large diameter that protrudes toward the pickup surface rather than a ground line consisting of a straight line connecting the ground point of the front wheel and the ground point of the rear wheel,
The press roll and scraping roll in contact with the pickup surface are elastically bent and deformed at the contact portion with the pickup surface, with the large diameter portion protruding from the grounding wire of the front and rear wheels,
At the time of pick-up, the press roll and the scraping roll are rotated in opposite directions to each other, and the two rolls bite each other to form a contact portion. The height from the lower end of the contact portion to the pick-up surface tries to capture the press roll. A pickup device for articles smaller than the size of the article.   The pickup device according to any one of claims 1 to 3, wherein a sum of a radius of the pressing roll and a radius of the scraping roll is made larger than an inter-axis distance between both rolls.   The pickup device according to any one of claims 1 to 4, wherein the pressing roll is supported by a rotation shaft of the front wheel and has a diameter larger than that of the front wheel.   The rotating shaft of the front wheel is supported by a long hole provided along the front and rear in the pickup direction of the frame constituting the pickup device, and the front wheel is on the rear side of the long hole when the pickup device moves forward, and on the front side of the long hole when moving backward The pickup device according to claim 1, which is positioned at The pickup device for an article according to any one of claims 1 to 6 , wherein the scraping roll and / or the cushion roll bite into a pickup surface by elastic deflection deformation. Pickup apparatus of an article according to any one of claims 1 to 7 arranged adhesive roll above the pressing roll, rotating in opposite directions in contact with both rolls during the pickup. The apparatus for picking up an article according to any one of claims 1 to 8 , further comprising an article collecting unit that collects the article and the like that are picked up by the scraping roll. The article pickup device according to any one of claims 1 to 9 , wherein a gap between the pressing roll and the pickup surface and a gap between the pressing roll and the pick-up roll are set according to the size of the article to be collected.

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