Jumping-out prevention device of object to be fed

Abstract

To provide a jumping-out prevention device of an object to be fed capable of preventing the object to be fed which is fed in a hopper from jumping out of the hopper.SOLUTION: A jumping-out prevention device of an object to be fed is provided with: a body part 2 detachably mounted on a hopper 100; a guide part 3 on which a guide surface 31a is formed; and a rotation support part 4 rotatably supporting the guide part 3 with respect to the body part 2. The body part 2 makes an inner space 2a of the body part communicate with an inner space 101 of the hopper, in which the object 200 to be fed is fed from an upper opening 2b in a loaded state the body part is loaded on the hopper 100. When the guide part 3 is in a state of a closed position, the inner space 2a of the body part is cut off in a vertical direction. When the guide part 3 is in a state of an opened position, the inner space 2a of the body part is made to communicate in the vertical direction. The guide part 3 keeps the state of the closed position when the object 200 to be fed is not loaded on the guide surface 31a, and when a specific amount or more of the object 200 to be fed is loaded on the guide surface 31a, the state of the closed position is shifted to the state of the opened position.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a device for preventing an object from falling out. [Background technology]

[0002] In injection molding using synthetic resin materials, runners are generated when producing injection molded products. Runners are generated frequently in injection molding, but since they are made of synthetic resin material, they are usually reused. When reusing runners, a crusher is used to break them into fine synthetic resin pieces.

[0003] The crusher cuts the runner by rotating the crushing blade to generate fine synthetic resin pieces. The crusher has a hopper disposed above the crushing blade. The hopper has an inlet formed in the upper direction that connects the hopper internal space with the outside, and the runner, which is the object to be fed, is fed into the hopper. The runner inserted from the hopper internal space falls from the hopper internal space into the crushing blade and is cut by the crushing blade. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2015-123382 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the runners fed into the crusher may be thrown off when they come into contact with the crusher blades, which rotate at high speed. The direction in which the runners are thrown off may be multiple, but if they are thrown upward, they may pass through the internal space of the hopper and be thrown out of the crusher through the inlet. The crusher is often installed near the injection molding machine, and the runners thrown out of the crusher may get mixed in the injection molding machine or an adjacent injection molding machine, or may get mixed in a cardboard box for shipping the product and be shipped unnoticed, which may result in a major complaint.

[0006] The present invention has been made in consideration of the above, and aims to provide a device for preventing objects from flying out of a hopper, which can prevent objects fed into a hopper from flying out of the hopper. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the object, the device for preventing an object from jumping out in this embodiment includes a main body that is detachably placed on a hopper into which an object is thrown from an inlet that communicates with an internal space of the hopper in an upward direction and an outside, a guide part having a guide surface formed on the upward direction side and a part of the guide surface located in the internal space of the main body, and a rotation support part that rotatably supports the guide part relative to the main body around a support direction perpendicular to the up-down direction, and the main body has an internal space of the main body, an upper opening that communicates with the internal space of the main body in the upward direction and an outside, and a lower opening that communicates with the internal space of the main body in the downward direction, and when placed on the hopper, the internal space of the main body communicates with the internal space of the hopper, and the object is thrown from the upper opening, and the guide surface is made of metal. and has a tip portion which is the inner end portion of the main body portion and a rear end portion which is the outer end portion of the main body portion in the perpendicular direction, and when the guide portion is in the closed position, it is an inclined surface that slopes downward as it goes from the outside to the inside of the main body portion in an orthogonal direction perpendicular to the vertical direction and the support direction, and the rear end portion protrudes outward from the main body portion relative to the main body portion and blocks the internal space of the main body portion in the vertical direction, and when the guide portion is in the open position, the position of the tip portion in the vertical direction is located lower than its position in the closed position state and communicates with the internal space of the main body portion in the vertical direction, and the guide portion maintains the closed position state when the object to be inserted is not placed on the guide surface, and transitions from the closed position state to the open position state when a predetermined amount or more of the object to be inserted is placed on the guide surface. Effect of the Invention

[0008] The device for preventing objects from flying out of the hopper according to the present invention has the effect of preventing objects to be fed into the hopper from flying out of the hopper. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a device for preventing an object from falling out according to an embodiment. [Diagram 2] FIG. 2 is a front view of a main part of the device for preventing an object from falling out in the embodiment. [Diagram 3] FIG. 3 is an explanatory diagram of the operation of the device for preventing an object from falling out in the embodiment. [Figure 4] FIG. 4 is a perspective view of the device for preventing an object from falling out and an additional cover according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present invention will be described in detail below with reference to the drawings. Note that the present invention is not limited to the following embodiments. In addition, the components in the following embodiments include those that a person skilled in the art can easily imagine or that are substantially the same.

[0011] [Embodiment] Fig. 1 is a perspective view of a device for preventing an object from jumping out in an embodiment. Fig. 2 is a front view of a main part of the device for preventing an object from jumping out in an embodiment. Fig. 2 is an explanatory diagram of the operation of the device for preventing an object from jumping out in an embodiment. The X direction in each figure (including Fig. 4) is the depth direction of the device for preventing an object from jumping out and is the support direction, the Y direction in each figure is the width direction of the device for preventing an object from jumping out and is the perpendicular direction, and the Z direction in each figure is the up-down direction of the device for preventing an object from jumping out. X1 is the front direction, X2 is the back direction, Y1 is the left direction, Y2 is the right direction, Z1 is the up direction, and Z2 is the down direction.

[0012] As shown in Figs. 1 and 2, the device 1 for suppressing the jumping out of the input object (AS hopper) is attached to a crusher (not shown) that cuts the input object 200, which can be reused as a material by pulverizing it into runners or the like, by rotating a crushing blade (not shown). The crusher has a hopper 100 disposed above the crushing blade. The hopper 100 has an inlet 102 that communicates the hopper internal space 101 with the outside in the upward direction, and directly inputs the input object 200 when the device for suppressing the jumping out of the input object 1 is not attached. The input object 200 directly input into the hopper 100 falls from the hopper internal space 101 to the crushing blade and is cut by the crushing blade. The device 1 for suppressing the jumping out of the input object includes a main body 2, a guide 3, a rotation support 4, and a balance weight 5.

[0013] The main body 2 is detachably placed on the hopper 100. The main body 2 has a frame 21, hopper placement portions 22 and 23, and a window portion 24.

[0014] The frame 21 is formed in a rectangular shape when viewed from the top-bottom direction. The frame 21 is made of a stainless steel plate material. The frame 21 is formed smaller than the input port 102 when viewed from the top-bottom direction, and is formed so as to be insertable into the input port 102 in the top-bottom direction. An opening is formed in the top-bottom direction, and the internal space is the main body internal space 2a of the main body 2. Of the openings in the top-bottom direction of the frame 21, the opening on the upper side is the upper opening 2b of the main body 2, and the opening on the lower side is the lower opening 2c of the main body 2. The upper opening 2b communicates the main body internal space 2a with the outside, that is, the outside of the input object jump-out suppression device 1. The lower opening 2c communicates the main body internal space 2a with the outside, that is, the hopper internal space 101. The frame 21 has flanges 21a and 21b formed at the upper end. The flanges 21a and 21b are formed at the upper end of a pair of plates of the frame 21 facing each other in the depth direction, and are formed to protrude outward from the device 1 for preventing the insertion of objects from jumping out in the depth direction. The flanges 21a and 21b can be held by a user with both hands to easily carry the device 1 for preventing the insertion of objects from jumping out. The frame 21 has insertion holes 21c into which the rotation support parts 4 (the first rotation support part 4A and the second rotation support part 4B) are inserted at both ends in the width direction of the pair of plates facing each other in the depth direction. The two insertion holes 21c formed in one plate are formed opposite the two insertion holes 21c formed in the other plate in the depth direction. In the frame 21 of this embodiment, a peep hole 21d is formed in the plate on the front side in the depth direction. The peep hole 21d penetrates the plate in the depth direction.

[0015] The hopper placement parts 22, 23 restrict the main body part 2 from moving downward with respect to the hopper 100 when a part of the main body part 2 is inserted into the insertion port 102. The hopper placement parts 22, 23 in this embodiment are formed in the middle of a pair of plates of the frame body 21 facing each other in the depth direction in the up-down direction, respectively, and are formed to protrude outside the device 1 for suppressing the jumping out of the inserted object in the depth direction. The hopper placement part 22 is formed to extend in the width direction in an inverted L shape when viewed from the width direction, and is fixed to the frame body 21 by welding. The hopper placement part 23 is formed to extend in the width direction in an L shape when viewed from the width direction, and is fixed to the frame body 21 by welding.

[0016] The window 24 allows the interior space 2a of the main body to be viewed from the outside. The window 24 is made of a transparent material, such as polycarbonate. The window 24 is disposed facing the peephole 21d in the depth direction, and is fixed to the plate on the front side by, for example, riveting. By viewing the peephole 21d through the window 24, the user can check the status of the interior space 2a of the main body, i.e., the operating status of the device 1 for preventing the insertion object from jumping out.

[0017] The guide unit 3 guides the insertion target object 200 inserted into the main body internal space 2a downward. The guide unit 3 is supported by the rotation support unit 4 with respect to the main body 2 so that a part of a guide surface 31a (described later) is positioned in the main body internal space 2a. The guide unit 3 in this embodiment has a first guide unit 3A and a second guide unit 3B. The first guide unit 3A and the second guide unit 3B have a guide unit main body 31 and a counterweight 32.

[0018] The guide body 31 is made of a metal, being made of an aluminum plate material. The guide body 31 is formed by bending both ends of the flat plate material in the depth direction downward, and bending the inner end of the body 2 in the width direction downward, so that a guide surface 31a is formed on the upper side. The guide body 31 is formed with an insertion hole (not shown) into which the rotation support part 4 is inserted at both ends in the depth direction bent downward. The guide surface 31a has a tip end 31b which is the inner end of the body 2 and a rear end 31c which is the outer end of the body 2 in the perpendicular direction. The guide body 31 of the first guide part 3A and the guide body 31 of the second guide part 3B are arranged with respect to the body 2 so that the tip end 31b of the guide surface 31a of the first guide part 3A and the tip end 31b of the guide surface 31a of the second guide part 3B face each other on the inside of the body 2. The length in the extending direction of the guide surface 31a of the first guide portion 3A and the guide surface 31a of the second guide portion 3B are the same.

[0019] The counterweight 32 determines the attitude of the guide unit body 31 relative to the body 2 when the guide unit 2 is supported by the rotation support unit 4 relative to the body 2. The counterweight 32 is made of a plate material such as stainless steel or aluminum. The counterweight 32 faces the guide surface 31a when viewed from the top-bottom direction, is disposed on the rear end side of the rotation support unit 4 in the width direction, and is fixed to the guide unit body 31 by, for example, riveting. The counterweight 32 is formed by bending the outer end of the body 2 downward in the width direction. When the guide unit 2 rotates upward relative to the body 2, the counterweight 32 comes into contact with the frame 21, thereby restricting the rotation of the guide unit 2.

[0020] Here, the guide unit 3 has a closed position state and an open position state. In the closed position state, the object 200 to be inserted is not placed on the guide surface 31a, that is, the guide unit 3 is in a non-loaded state, and the guide surface 31a is an inclined surface that slopes downward in the width direction from the outside to the inside of the main body 2. In the closed position state, the rear end 31c of the guide surface 31a protrudes outward from the main body 2 relative to the main body 2, and the guide surface 31a blocks the main body internal space 2a in the vertical direction. In the closed position state, the first guide unit 3A and the second guide unit 3B in this embodiment block the main body internal space 2a in the vertical direction by the tip end 31b of the guide surface 31a contacting each other. The open position is a state in which a predetermined amount of objects 200 are placed on the guide surface 31a, i.e., the guide unit 3 is under load, and as shown in Fig. 3, the tip 31b is located lower in the vertical direction than the closed position. When the guide unit 3 is in the open position, it communicates with the main body internal space 2a in the vertical direction. In this embodiment, the first guide unit 3A and the second guide unit 3B communicate with the main body internal space 2a in the vertical direction when in the open position by separating the tip 31b of each guide surface 31a from each other.

[0021] The rotation support part 4 supports the guide part 3 rotatably around the depth direction relative to the main body part 2. The rotation support part 4 is a shaft, and is made of a bar material such as stainless steel or aluminum. The rotation support part 4 is inserted into the insertion hole 21c of the main body part 2 and the insertion hole of the guide part main body 31, and rotatably supports the guide part 3 between a pair of plates facing each other in the depth direction. The rotation support part 4 has insertion holes (not shown) formed at both ends in the depth direction, and a retaining pin (not shown) is inserted into each insertion hole, thereby restricting movement in the depth direction relative to the main body part 2. The rotation support part 4 in this embodiment has a first rotation support part 4A and a second rotation support part 4B. The first rotation support part 4A rotatably supports the first guide part 3A relative to the main body part 2. The second rotation support part 4B rotatably supports the second guide part 3B relative to the main body part 2.

[0022] The balance weight section 5 adjusts the timing at which the guide section 3 changes from the closed position to the open position, and adjusts a predetermined amount of the insertion target object 200 placed on the guide surface 31a in the open position. The balance weight section 5 corresponds to the guide section 3, and in this embodiment, the balance weight section 5 has a first balance weight section 5A corresponding to the first guide section 3A and a second balance weight section 5B corresponding to the second guide section 3B. The first balance weight section 5A and the second balance weight section 5B have a weight main body 51 and a weight fixing member 52.

[0023] The weight body 51 is fixed to the guide section 2. The weight body 51 is made of a plate material such as stainless steel or aluminum. The weight body 51 faces the guide section 3 when viewed from the depth direction, and is disposed on the rear end side of the rotation support section 4 in the width direction. The weight body 51 is formed such that the upper end is bent inward of the body section in the depth direction, that is, faces the guide surface 31a when viewed from the up-down direction. The weight body 51 has a long hole 51a formed in a portion facing the guide section 3 when viewed from the depth direction, the long hole 51a extending in the extension direction of the guide surface 31a, that is, in the direction from the tip end 31b toward the rear end 31c.

[0024] The weight fixing member 52 fixes the weight body 51 to the guide part 2. The weight fixing member 52 is a screw, and is screwed into a screw hole (not shown) formed in one end of the guide part body 31 in the depth direction bent downward. When viewed from the axial direction, the weight fixing member 52 is formed so that its top is larger than the long hole 51a, and when inserted into the long hole 51a, the weight body 51 is fixed to the guide part 3 by screwing into the screw hole of the guide part body 31.

[0025] Here, since the weight fixing member 52 is inserted into the long hole 51a, the balance weight section 5 can change the position of the weight body 51 relative to the guide section 3 in the extension direction of the guide section 3 (see the dashed line in FIG. 2). When the position of the weight body 51 relative to the guide section 3 moves away from the rotation support section 4, the balance weight section 5 can increase the predetermined amount of the input object 200 placed on the guide surface 31a necessary for the open position state, and when the position of the weight body 51 relative to the guide section 3 approaches the rotation support section 4, the predetermined amount of the input object 200 placed on the guide surface 31a necessary for the open position state can be decreased.

[0026] Next, a method (operation) of using the device for preventing an object from jumping out will be described below. When using the device for preventing an object from jumping out 1, a user first places the device 1 on the hopper 100. Here, the user holds the flanges 21a and 21b to lift the device 1 and align the lower opening 2c of the frame 21 with the inlet 102 of the hopper 100 in the vertical direction.

[0027] Next, the user moves the device 1 for preventing an object from jumping out downward relative to the hopper 100, inserts the lower end of the frame 21 into the input port 102, and places the device 1 on the hopper 100 by bringing the hopper placement parts 22, 23 into contact with the upper end of the hopper 100. At this time, the main body internal space 2a and the hopper internal space 101 communicate with each other. In this state, as shown in FIG. 1, since the object to be inserted 200 is not placed on the device 1 for preventing an object from jumping out, the guide part 3 maintains the closed position.

[0028] Next, the user inserts the object 200 into the device 1 for preventing the object from jumping out (arrow A in the figure). The object 200 is inserted from the upper opening 2b into the internal space 2a of the main body, moves downward along the guide surface 31a, and accumulates on the upper side of the leading ends 31b, 31b facing each other in the width direction, so that the object is placed on the guide surface 31a of the guide unit 3 in the closed position. When the amount of the object 200 placed is less than a predetermined amount, the guide unit 3 maintains the closed position, and when the amount is equal to or more than the predetermined amount, the guide unit 3 transitions from the closed position to the open position.

[0029] Next, when the guide part 3 transitions from the closed position to the open position, the tip part 31b is located lower than the position in the closed position in the vertical direction, so that a gap is formed between the tip parts 31b, and the main body internal space 2a is connected, as shown in Fig. 3. Therefore, the object 200 to be inserted that was present in the main body internal space 2a above the guide part 3 passes through the gap and falls into the main body internal space 2a below the guide part 3, and is inserted into the hopper internal space 101.

[0030] When the guide part 3 falls into the main body internal space 2a below the guide part 3, the amount of inserted object 200 placed thereon becomes less than a predetermined amount, so the guide part 3 transitions from the open position to the closed position, again blocking the main body internal space 2a.

[0031] As described above, in the device 1 for preventing the insertion object from jumping out in this embodiment, the guide unit 3 maintains the closed position state when the amount of the insertion object 200 loaded on the guide surface 31a is less than a predetermined amount, and when the amount is equal to or more than the predetermined amount, the guide unit 3 moves from the closed position state to the open position state, inserts the insertion object 200 into the hopper internal space, and automatically moves back to the closed position state. In the device 1 for preventing the insertion object from jumping out, when the insertion object 200 is inserted into the hopper internal space 101, the guide unit 3 blocks the main body internal space 2a. Therefore, when the insertion object 200 is cut by the crushing blade, the insertion object 200 is bounced upward by the cutting force of the crushing blade, passes through the hopper internal space 101, and enters the main body internal space 2a, but returns to the hopper internal space 101 by its own weight because it comes into contact with the guide unit 3. This makes it possible to prevent the insertion object 200 inserted into the hopper 100 from jumping out of the hopper 100.

[0032] In addition, in the device 1 for preventing the insertion object from jumping out in this embodiment, the guide section 3 has the first guide section 3A and the second guide section 3B that face each other in the width direction, so that when each guide section 3A, 3B transitions from the closed position state to the open position state, the gap through which the insertion object 200 passes can be made wider than when one guide section 3 transitions from the closed position state to the open position state. Therefore, when the insertion object 200 placed on the guide surface 31a transitions from the closed position state to the open position state, it can be quickly dropped into the hopper internal space 101, so that the period of the open position state can be shortened. This makes it possible to prevent the insertion object 200 that has passed through the hopper internal space 101 and entered the main body internal space 2a from passing through the gap and moving to the main body internal space 2a above the guide section 3 in the main body internal space 2a, so that it is possible to further prevent the insertion object 200 inserted into the hopper 100 from jumping out of the hopper 100.

[0033] The device 1 for preventing an inserted object from jumping out in this embodiment may expand the internal space 2a of the main body part 2a on the upper side of the guide part 3. FIG. 4 is a perspective view of the device for preventing an inserted object from jumping out and the additional cover part in the embodiment. As shown in FIG. 4, the device 1 for preventing an inserted object from jumping out may include an additional cover part 6 that is placed on the main body part 2 in a detachable manner. The additional cover part 6 has a frame body 61.

[0034] The frame body 61 is formed in a rectangular shape when viewed from the top-bottom direction. The frame body 61 is made of a stainless steel plate material. The frame body 61 is formed larger than the frame body 21 when viewed from the top-bottom direction. The frame body 61 has openings in the top-bottom direction, and an additional cover part internal space 6a is formed. Of the openings in the top-bottom direction of the frame body 61, the upper opening 6b communicates the additional cover part internal space 6a with the outside, i.e., the outside of the device 1 for preventing the insertion object from jumping out, and the lower opening 6c communicates the additional cover part internal space 6a with the outside, i.e., the main body part internal space 2a. The frame body 61 has cutouts 61a, 61b formed at the lower end of a pair of plates facing each other in the width direction. When the additional cover part 6 is placed on the main body part 2, the cutouts 61a, 61b are located at parts of the outside of the main body part 2 of the first guide part 3A and the second guide part 3B. The frame body 61 has main body placement parts 61c, 61d formed at the lower end of a pair of plates facing each other in the depth direction. The main body placement parts 61c, 61d are in contact with the flange parts 21a, 21b of the main body part 2 in the up-down direction, and the additional cover part 6 is placed on the upper side of the main body part 2 by the contact. The main body placement parts 61c, 61d are formed at the lower end of a pair of plates facing each other in the depth direction of the frame body 61, respectively, and are formed to protrude outside the additional cover part 6 in the depth direction. The frame body 61 has first movement restriction parts 61e, 61f formed therein. The first movement restriction parts 61e, 61f restrict the additional cover 6 from moving in the depth direction relative to the main body part 2 when the main body placement parts 61c, 61d are in contact with the flange parts 21a, 21b. The first movement restricting portion 61e is formed so as to protrude downward from the rear end of the main body mounting portion 61c. The first movement restricting portion 61f is formed so as to protrude downward from the rear end of the main body mounting portion 61d. The frame body 61 is formed with the second movement restricting portions 61g, 61h. The second movement restricting portions 61g, 61h restrict the additional cover 6 from moving in the width direction relative to the main body 2 when the main body mounting portions 61c, 61d are in contact with the flange portions 21a, 21b. The second movement restricting portions 61g are formed so as to protrude downward from both ends in the width direction of the main body mounting portion 61c.The second movement restricting portions 61h are formed so as to protrude downward from both widthwise ends of the main body placement portion 61d. The frame body 61 has a flange formed at its upper end. The flange is formed at each of the upper end portions of a pair of plates of the frame body 61 that face each other in the depth direction, and is formed so as to protrude outward from the additional cover portion 6 in the depth direction. The flange allows the user to easily carry the additional cover portion 6 by holding it with both hands.

[0035] Next, a method of using (operation of) the additional cover part will be described. When using the additional cover part 6, the user places the additional cover part 6 on the main body part. Here, the user grasps the additional cover part 6 to lift the additional cover part 6, and aligns the lower opening 6c of the frame body 61 with the upper opening 2b of the frame body 21 in the vertical direction.

[0036] Next, the user places the additional cover part 6 on the main body part 2 by moving the additional cover part 6 downward relative to the main body part 2 and bringing the main body part placement parts 61c, 61d into contact with the flange parts 21a, 21b, respectively. At this time, the additional cover part internal space 6a and the main body part internal space 2a communicate with each other. In this state, the lower side ends of a pair of plates of the frame body 61 facing each other in the width direction and the rear ends 31c of the guide surfaces 31a of each guide part 3 in the closed position face each other in the vertical direction, and when viewed from the vertical direction, the additional cover part internal space 6a faces each guide surface 31a without any gaps (including "with minimal gaps"). This makes it possible to reliably prevent the object 200 that moves from the hopper internal space 101 to the main body internal space 2a above the guide section 3, or the object 200 that is inserted into the device 1 for preventing the object from jumping out and bounces off when it comes into contact with each guide surface 31a, from scattering outside the device 1.

[0037] In this embodiment, the device 1 for preventing the insertion object from falling out is simply configured by placing the additional cover part 6 on the main body part 2, but this is not limited to this, and the additional cover part 6 may be fixed to the main body part 2 by a fastener fastening fitting or the like.

[0038] In addition, in this embodiment, the hopper mounting portions 22, 23 may be formed in the middle of the opposing walls of the frame body 21 that face each other in the width direction, in the vertical direction, or may be formed on all opposing walls of the frame body 21.

[0039] In addition, the peephole 21d in this embodiment may be formed in the plate on the rear side in the depth direction, or may be formed in each of a pair of plates facing each other in the depth direction, or may not be formed at all.

[0040] In the present embodiment, the guide surface 31a of the first guide portion 3A and the guide surface 31a of the second guide portion 3B have the same length in the extending direction, but this is not limited to this and may be different. In this case, when in the closed position, the first guide portion 3A and the second guide portion 3B contact each other with the tip portion 31b of one guide surface 31a positioned below the tip portion 31b of the other guide surface 31a, thereby blocking the main body internal space 2a in the vertical direction.

[0041] In addition, in this embodiment, the guide surface 31a is made of metal because the guide body 31 is made of metal, but this is not limited to this, and the guide surface 31a may be made of metal by fixing a metallic film or flat plate to the upward side of the guide body 31, which is not made of metal.

[0042] Further, the device 1 for preventing an object from falling out in this embodiment includes two guide parts 3, but is not limited to this and may include one guide part or three or more guide parts. [Explanation of symbols]

[0043] 1: Device for preventing thrown-in object from jumping out 2: Main body 2a: Internal space of main body 2b: Upper opening 2c: Lower opening 21: Frame 22, 23: Hopper placement section 24: Window section 3: Guide section 3A: First guide section 3B: Second guide section 31: Guide section main body 31a: Guide surface 31b: Front end section 31c: Rear end section 32: Counterweight 4: Rotation support section 4A: Rotation support section 4B: Rotation support section 5: Balance weight section 5A: First balance weight section 5B: Second balance weight section 51: Weight main body 52: Weight fixing section 6: Additional cover section 61: Fixing piece 100: Hopper 101: Hopper internal space 102: Entry port 200: Throw-in object

Claims

1. A main body is detachably placed on a hopper into which an object to be inserted is inserted through an insertion port that communicates with an internal space of the hopper and the outside in an upward direction; A guide portion having a guide surface formed on an upper side thereof, a part of the guide surface being positioned in an internal space of the main body portion; a rotation support portion that supports the guide portion relative to the main body portion so as to be rotatable about a support direction perpendicular to a vertical direction; Equipped with The main body portion is The main body internal space; An upper opening communicating an internal space of the main body with the outside in an upward direction; A lower opening communicating an internal space of the main body with the outside in a downward direction; In a state where the container is placed on the hopper, the container communicates with an internal space of the main body and an internal space of the hopper, and the object to be put in is put in through the upper opening. The guide surface is The stator is made of metal and has a leading end that is an inner end of the body portion and a trailing end that is an outer end of the body portion in an orthogonal direction; When the guide portion is in the closed position, the guide portion has an inclined surface that slopes downward from the outside to the inside of the main body portion in a direction perpendicular to the vertical direction and the support direction, and the rear end portion protrudes outward from the main body portion with respect to the main body portion and blocks the internal space of the main body portion in the vertical direction, When the guide portion is in the open position, the position of the tip portion in the up-down direction is located lower than the position of the tip portion in the closed position, and the internal space of the main body portion is communicated in the up-down direction, The guide section maintains the closed position when the object to be inserted is not placed on the guide surface, and transitions from the closed position to the open position when a predetermined amount or more of the object to be inserted is placed on the guide surface. A device for preventing objects from falling out, comprising:

2. The device for preventing an object from jumping out according to claim 1, the guide portion includes a first guide portion and a second guide portion opposed to each other in the perpendicular direction, a guide surface of the first guide portion and a guide surface of the second guide portion, the respective tip portions of which face each other on the inside of the main body portion when in the closed position state; Device to prevent objects from falling out.

3. The device for preventing an object from jumping out according to claim 1 or 2, A weight balance portion corresponding to the guide portion is further provided, The weight balance unit is A weight body fixed to the guide portion; a weight fixing member for fixing the weight body to the guide portion; Further equipped with The weight body is disposed on a rear end side of the rotation support portion when viewed from the up-down direction, and a long hole is formed in the weight body so as to extend in the extending direction of the guide surface. The weight fixing member fixes the weight body to the guide portion when inserted into the long hole. Device to prevent objects from falling out.

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