JP3060257B2 - Opening / closing device for bag bottom in bag conveyor, locking mechanism used for the device, and device for preventing swinging of bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device for opening and closing a bottom of a bag for accommodating a large number of items in a bag conveyor, and a lock mechanism and an anti-sway device for the bag used in the device. The present invention relates to an opening / closing device for the bottom of a storage bag of a bag conveyor for carrying laundry in an automatic cleaning system for continuously washing a yukata, a macula cover, and the like, a lock mechanism used in the device, and a device for preventing the bag from swinging.

[0002]

2. Description of the Related Art For example, an automatic cleaning system for continuously washing a large number of towels, sheets, a yukata, a macula cover and the like is known. In this cleaning system,
A lot of laundry is stored, and the storage bag, which can be opened and closed, is hung down on a traveling roller placed on a conveyor rail of a bag conveyor, travels along the rail, stops at a fixed position, and Work such as supply into the storage bag or dropping from the storage bag.

[0003] The storage bag used in the previously known cleaning system is provided with an opening at the bottom, a string is wrapped around the opening at the bottom, and the string is squeezed to close the opening at the bottom. The squeezed string is loosened to open the bottom opening. In order to loosen the string and open the bottom of the storage bag, the weight of the laundry stored in the storage bag is approximately 80 kg, so it is automatically released simply by releasing the restraining force of the restrained string, In order to squeeze the string and keep the bottom closed, it is necessary to maintain the restrained state where the string is pulled. Conventionally, in order to maintain the restrained state of the string, a device configured to hold the string by the holding member, a locking member provided at the tip of the string, a locking member provided at the upper edge of the bag, and the stop of the bag 2. Description of the Related Art There has been known an apparatus in which a lock member is disengaged from a lock member by using a transfer device for a lock member which is arranged to face a position and moves up and down.

[0004]

In the conventional holding means using a holding member, since the same position of the string is always held, there is a problem that this portion is severely damaged and cannot be endured over time. In addition, there was also a problem that the closed state of the bag bottom could not be reliably obtained due to slippage of the string. In the means using the delivery device, the delivery of the locking member may not be performed smoothly, and there is a problem that the bag bottom cannot be opened and closed reliably. In addition, in any device, the string may be loosened, entangled, caught, or the like, and there is a serious problem that the opening / closing of the bag bottom cannot be reliably performed. Therefore, there has been a demand for a new opening / closing device that can restrain the string without pinching the string and can easily and reliably open and close the bottom of the storage bag.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and makes it easy and reliable to restrain and release the pulling position of a string without using a means for holding the string or a means for delivering a locking member. It is an object of the present invention to provide a novel storage bag bottom opening / closing device that ensures the opening / closing of the bottom and that can withstand long-term use. Another object of the present invention is to provide a novel lock mechanism used for the storage bag bottom opening / closing device. It is a further object of the present invention to provide a novel bag swing preventing device that prevents the bag from swinging when opening and closing the bottom of the storage bag.

[0006]

In order to achieve the above object, a bag bottom opening and closing device according to the present invention has upper and lower openings,
A bag conveyor in which a string is wrapped around the opening at the bottom, the string is squeezed to close the opening at the bottom, and the storage bag with the opening loosened by loosening the string is suspended on the transport rail and transported. In the extension portion of the cord, a lock pin also serving as a weight having an engagement groove is provided, and a lock mechanism having a hook member capable of receiving and locking the lock pin is provided on the outer side of the upper edge of the storage bag. An operation string having an upper end connected to the lock pin fixed to an upper end of the bag is provided, and the operation string and a string surrounding the bag bottom opening are united through a lock pin also serving as a weight, and the operation string is locked by the lock. The lock mechanism is disposed so as to penetrate the lock mechanism, and secures the closed state of the bag bottom by squeezing the string by engaging the hook member of the lock mechanism with the lock pin. Dropped, it is characterized in that so as to open the bag bottom by loosening.

A lock pin is received in the lock mechanism,
It has a lock maintaining cylinder and a lock release cylinder that engage and disengage the lock pin and the hook member by up and down movement in the lock mechanism, and the upper part of the lock release cylinder is projected and exposed on the lock mechanism. A stopper device for penetrating the connected operation cord through the lock maintaining cylinder and the lock release cylinder and fixing the tip thereof to the upper edge of the bag, while stopping and fixing the bag at the bag bottom opening / closing position of the bag conveyor, and A lock release cylinder that presses down on the top of the cylinder to release the engagement between the lock pin and the hook member;
It is preferable that a rodless cylinder provided with a push-down pulley that pushes down the operation cord and raises the lock pin is provided.

The lock mechanism according to the present invention further comprises a rectangular outer housing fixed to the outside of the upper edge of the storage bag and having a through-hole formed by leaving the engaging edge at the top and bottom; A rectangular unlocking cylinder having a cylindrical projecting portion which is protrudingly exposed, and which can be engaged with an engaging edge at an upper portion of the outer housing and which is housed so as to be vertically movable in the outer housing; A small-diameter cylindrical upper portion located in the protruding portion, a lower portion projecting downward from a through hole below the outer housing, and a lower portion having an engaging flange engaging with a lower engaging edge of the outer housing; A lock maintenance cylinder housed in the lock release cylinder so as to be vertically movable, and a string at the top and bottom,
A lock pin having a substantially conical head at the tip, having an engagement groove close to the head, and being receivable in the lock maintaining cylinder, is engaged with the engagement groove of the lock pin, A hook member for maintaining a hook state of the lock pin, wherein the lock release cylinder has a vertical slit for receiving and guiding a guide projection protruding from the lock maintenance cylinder, and communicating with the vertical slit, A lateral slit capable of receiving a member, the lock maintaining cylinder having a receiving slit capable of opposing the lateral slit of the unlocking cylinder and receiving a hook member, and located in the receiving slit. The lock member is maintained in the locked state by engaging the hook member and the engagement groove of the lock pin to be locked. Upward The lock maintenance tube is characterized in that are granted prestressing force downward.

Further, in the bag anti-sway device of the present invention, a cylinder is provided above the opening / closing position of the bag bottom of the bag conveyor at at least two opposing positions on the upper edge of the bag. Are characterized in that the two opposite positions are pressed to prevent the bag from shaking.

[Action]

In the bag bottom opening / closing device configured as described above, the lock pin is received in the lock mechanism, and the hook member in the lock mechanism is engaged in the engagement groove of the lock pin, and the lock pin is locked. The bag is locked in the mechanism, the string connected to the lock pin is squeezed, and the closed state of the bag is maintained. Further, the engagement between the hook member and the lock pin is released, the lock pin falls by its own weight, the string is loosened, and the bag bottom is opened. Furthermore, the string and the operation string are unified via the lock pin, and one end of the operation string is fixed to the upper edge of the bag and penetrates the lock mechanism, so that the operation string, the string and the lock pin are always fixed. Position and the lock pin doubles as a weight, so it will hang down reliably when the bag bottom is open.

In the lock mechanism configured as described above, the lock pin is inserted into the lock maintaining cylinder, the hook member is located in the receiving slit of the lock maintaining cylinder, and is engaged with the engaging groove of the lock pin. The lock pin is locked in the lock mechanism. When the unlocking cylinder is pushed down against the spring pressure in this state, the horizontal slit faces the hook member, and the weight of the lock pin pushes the hook member in the horizontal direction, and the hook member is moved in the horizontal slit. The lock pin is disengaged from the engagement groove of the lock pin, and the lock pin drops. Further, when the lock pin is lifted up from its dropped state, the head of the lock pin pushes up the hook member, which has been returned into the receiving slit of the lock maintaining cylinder, and the pushing force causes the lock maintaining cylinder to resist the expanding pressure of the spring. Then, the hook member is pushed into the lateral slit of the unlocking cylinder to be received and passed through the head of the lock pin, and when the lifting force of the lock pin is stopped, the lock maintaining cylinder descends with the hook member and the hook member Is engaged with the engagement groove of the roppin.

[0012] Further, in the bag anti-swing device constructed as described above, two opposing locations on the upper edge of the bag are pressed by the pressing action of the cylinder, and the bag is prevented from shaking.

[0013]

An embodiment will be described with reference to the drawings. In the drawing, reference numeral 1 denotes a cloth bag, the upper edge of which is attached to a cylindrical metal ring 2 and the upper portion is always open. This bag has an opening in the bottom, and as shown in FIG. 6, a string 3 is wrapped around the bottom, and the string is squeezed to close the opening in the bottom, and the string is loosened to open the opening in the bottom. I have to do it. This bag is adapted to be suspended on a conveyor rail 4 of the bag conveyor. The transfer rail 4 has an inverted T-shaped cross section as shown in FIGS. 4 and 7, and a suspension member 6 is suspended from running wheels 5 mounted and rolled on the rail in pairs. The ring 2 of the bag 1 is fixed to the suspension member. Therefore, the bag is suspended at the front and rear positions in the traveling direction of the transport rail 4. The movement of the bag 1 guided by the transport rail 4 may be performed by forcible driving. However, in the apparatus shown in the embodiment, the transport rail 4 is slightly inclined, and the bag 1 naturally travels due to the weight of the bag. To do.

In order to supply the goods to the bag 1 or to drop the goods from the bag 1 at a fixed position of the transfer rail, a stopper device for stopping and fixing the bag is required. FIGS. 2 and 3 show the stopper device 7. The stopper device 7 moves the traveling wheel 5 on the rail 4 in conjunction with the cylinder 8 and the operation of moving the cylinder 8 in and out.
And a stopper 9 which enters and exits the traveling area. The stopper device 7 is located in the forward direction in the running direction of the bag. When the stopper 9 stops the bag, the stopper device 7 is positioned at the rear end position of the bag to prevent the bag from going backward due to a recoil. A stopper 10 is provided. The stopper 10 is supported by a rail, and when the traveling wheel is traveling in the traveling direction, the stopper is pushed up by the traveling wheel by the inclined surface of the stopper, and escapes from the traveling area of the traveling wheel. When the vehicle passes, the vehicle rotates by its own weight and returns to prevent the traveling wheels from moving backward.

In the figure, reference numeral 11 denotes a lock mechanism, and the ring 2 to which the upper edge of the bag is fixed is attached to the suspension member 6 which hangs. This lock mechanism pulls up a lock pin 12 provided on a cord 3 that opens and closes the bottom of the bag 1, squeezes the cord wrapped around the bottom of the bag 1, and maintains the bag bottom in a closed state. 12 is a mechanism for locking.

The lock mechanism comprises a rectangular outer casing 13 fixedly provided on the suspension member 6, a rectangular unlocking cylinder 14 housed in the outer casing 13 so as to be vertically movable, and an unlocking mechanism. A lock maintenance cylinder 15 positioned inside the cylinder 14 and vertically movable within the outer casing 13, the lock pin 12, and a hook member 21 for locking the lock pin 12. I have.

As shown in FIG. 9 and FIGS. 11 to 13, the outer casing 13 is a rectangular hollow casing, and through holes 17, 18 are formed leaving the engaging edges 16 above and below. The rectangular lock release cylinder 14 has a cylindrical protrusion 19 at the upper part which projects upward from the upper through hole 17 of the outer casing 13 and can be engaged with the engaging edge 16 at the upper part of the outer casing 13. It has a shoulder portion 20 and is housed in the outer casing 13 so as to be vertically movable. Further, the lock maintaining cylinder 15 has a small-diameter cylindrical upper part 22 located in the cylindrical protruding part 19 of the unlocking cylinder 14 at the upper part, and projects the lower part downward from the lower through hole 18 of the outer casing 13 and the lower part. Engagement flange 2 engaging with engagement edge 16 at the lower part of outer casing 13
3 and is housed in the outer casing 13 and the unlocking cylinder 14 so as to be vertically movable.

The lock pin 12 has a substantially conical head 24 at the tip as shown in FIG.
The engagement groove 25 is formed close to the lock maintaining cylinder 15 so as to be inserted around the outer periphery of the pin. The upper and lower steps 26 constituting the engagement groove 25 are tapered. A string insertion hole 27 is formed at the center axis position of the lock pin 12, has a hollow portion 28 in the lower part, and one end of the string 3 inserted through the lower through hole 27 and the upper half through hole are inserted. An end of an operation cord to be described later is tied, and the tied portion is accommodated in the hollow portion 28. The hook member 21 has a cylindrical pin shape as shown in the figure.

The cylindrical projection 19 of the lock release cylinder 14
Is formed with a slit 29 as shown in FIG. The slit 29 guides an operation cord described later. In addition, on the side wall facing the rectangular body of the unlocking cylinder 14,
A vertical slit 31 is formed to receive and guide the guide projection 30 protruding from a position opposite to the side surface of the lock maintaining cylinder 15, and further communicates with the vertical slit to allow the hook member 21 to be received. A direction slit 32 is formed. The upper and lower cuts formed with the horizontal slits 32 are inclined so that the inside faces downward. The hook members 21 received in the horizontal slits 32 are easily dropped from the slits 32 by their own weight.

The lock maintaining cylinder 15 has a receiving slit 33 that can face the lateral slit 32 of the unlocking cylinder 14 and that receives the hook member 21. The member 21 and the engagement groove 25 of the lock pin 12 are engaged with each other to maintain the lock state of the lock pin 12 as shown in FIG. An expansion spring 34 is interposed between the lock release cylinder 14 and the lock maintenance cylinder 15 to apply an upward force to the lock release cylinder 14 and to accumulate energy downward to the lock maintenance cylinder 15. Power is given.

In the figure, reference numeral 35 denotes an operation cord connected to the tip of the lock pin 12, and the lock maintaining cylinder 15 and the lock release cylinder 1
4 and the cylindrical projection 19 of the unlocking cylinder 14
And the suspension member 6
The pulley 35 is guided through a pulley 35 provided at the upper end of the bag, and its tip is fixedly connected to a related fixing portion of the ring 2 on the upper edge of the bag, so that it can receive a pressing force of an operation string pressing pulley described later. It is.

Reference numeral 37 shown in FIGS. 1 to 3 denotes a fixed frame provided at a fixed position above the bag 1 stopped by the stopper device 7 on the transport rail 4 and fixed to an immovable member on the transport rail 4. is there. A pivot arm 38 is pivotally supported 39 at a position slightly shifted from the position immediately above the transport rail 4 of the fixed frame 37 in a direction orthogonal to the rail 4 when viewed in a plane, and is perpendicular to the tip thereof. The rail 40 is provided facing downward. This vertical rod 40 is located outside the transfer area of the bag 1. The rotating arm 38 is connected to a cylinder 41 mounted on the fixed frame 37, and is rotated by 90 degrees by operating the cylinder 41. At a position rotated by 90 degrees, a vertical rod 40 at the tip thereof is rotated. Are positioned so as to face the lock mechanism 11 fixed to the upper edge of the bag.

At the vertical position of the vertical rod 40, the support piece 42 is fixed between the rail 4 and the ring 2 at the upper edge of the bag, and protrudes in the direction of the lock mechanism 11.
The support piece 42 is provided with a lock release cylinder 43 for the lock pin 12. That is, when the rotation arm 38 is rotated in the rail direction, the lock release cylinder 43 is
Moves to a position directly above the lock mechanism 11, and by pushing down the lock mechanism 11, the cylindrical projection 19 of the lock release cylinder 14 is pushed down. Further, a rodless cylinder 44 which is long in the longitudinal direction is fixed to the vertical rod 40, and a pulley 45 for pushing down an operation string is attached to a vertically moving piston of the rodless cylinder, and the pulley 45 is positioned on the operation string. It is like that. And this pulley 45
The operation cord 35 is pushed down in a U-shape by the downward movement, and the lock pin 12 is pulled up.

Further, the fixed frame 37 is provided with an anti-swing cylinder 46 at at least two positions far from the opposite rails of the upper ring 2 of the bag 1 to be stopped. Is to be prevented.

In the above configuration, the bottom of the bag 1 is closed when the cord 3 is pulled up and the lock pin 12 is locked in the lock mechanism 11. This state is as shown in FIG. 11, in which the lock release cylinder 14 and the lock maintenance cylinder 15 are positioned at the upper end and the lower end, respectively, by the resilient pressure of the spring 34, and the hook member 21 is located in the receiving slit 33 of the lock maintenance cylinder 15. Accepted by
It is engaged with the engagement groove 25 of the lock pin 12.

In this state, when the bag moves along the rail 4 and reaches the stop position, the traveling wheel 5 on the traveling side is stopped by the stopper 9 of the stopper device 7, and the backward movement is prevented by the backward movement preventing stopper 10. It is stopped and stopped at the stop position. In this position, the anti-swing cylinder 46 operates to hold the ring 2 at the upper edge of the bag 1 and prevent the left and right sway of the bag 1.

In this position, the cylinder 41 is operated, and the rotating arm 38 is rotated counterclockwise in FIG. 3 about the shaft 39 as an axis, and the unlocking cylinder 43 is positioned immediately above the lock mechanism 11. Then, the lock release cylinder 43
Is operated to push down the cylindrical projection 19 of the unlocking cylinder 14. Then, the horizontal slit 32 of the lock release mechanism 14 faces the position of the hook member 21 as shown in FIG. Since the hook member 21 is given a lateral moving force by the weight of the lock pin 12, the hook member is received in the horizontal slit 32, and the engagement with the lock pin 12 is released. Therefore, the lock pin 12 naturally falls due to its weight, loosens the closed string around the bag bottom, opens the bottom, and drops the conveyed material in the bag.

In order to store the next conveyed product in the bag 1 and close the bottom of the bag, the rodless cylinder 4 is kept in the unlocked position of the unlocking cylinder 43.
When the operation cord 4 is actuated to push down the operation cord pushing down pulley 45 attached to the piston, the pulley 45 pushes down the operation cord 35 in a U-shape as shown by the imaginary line in FIG. When the lock pin 12 is pulled up, the head 24 pushes up the hook member 21 and at the same time pushes up the lock maintaining cylinder 15, so that the hook member 21 faces the lateral slit 32 of the lock release cylinder 14. Since the head 24 of the lock pin has a substantially conical shape, the hook member 21 is pushed laterally and pushed into the lateral slit 32. Therefore, the head 24 of the lock pin 12 passes between the hook members 21. Thereafter, the lock maintaining cylinder 15 descends and returns, the hook member also returns, and returns into the receiving slit 33 of the lock maintaining cylinder,
This will engage with the engagement groove 25 of the lock pin.

[0029]

As described above, according to the present invention, a lock member is used and a hook member is built in a lock mechanism, and the engagement between the lock pin and the hook member secures a pulling position of a string for closing the bag bottom. Therefore, the lock pin can be easily and reliably locked and released without damaging the string. In the present invention, in particular, the string surrounding the bag bottom and the operation string are unified by using a lock pin also serving as a weight, and the operation string is passed through the lock mechanism. Since it is fixed, the string is not shaken, entangled or caught, there is no risk of coming off, always secure a fixed position, it is possible to reliably open and close the bag,
This has an effect that automation can be easily performed.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire bag opening / closing device of the present invention.

FIG. 2 is a side view showing the whole bag opening / closing device of the present invention.

FIG. 3 is a plan view showing the entire bag opening / closing device of the present invention.

FIG. 4 is a front view of a lock mechanism position of the device of the present invention.

FIG. 5 is a side view of the same.

FIG. 6 is a side view showing the entire bag.

FIG. 7 is a front view showing a state in which the bag is suspended from rails.

FIG. 8 is a side view of the same.

FIG. 9 is a front view of the lock mechanism of the present invention, and shows the outer housing in cross section.

FIG. 10 is an exploded perspective view of a main part of the lock mechanism.

FIG. 11 is a sectional view of the lock mechanism in a locked state.

FIG. 12 is a sectional view of the lock mechanism in the unlocked state.

FIG. 13 is a sectional view showing a state immediately before locking of the lock mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag 3 String 4 Transport rail 7 Stopper device 11 Lock mechanism 12 Lock pin 13 Outer housing 14 Lock release cylinder 15 Lock maintenance cylinder 16 Engagement rim 17 Through hole 18 Through hole 19 Cylindrical protrusion 21 Hook member 22 Small diameter cylindrical shape Part 23 Engagement flange 24 Head 25 Engagement groove 30 Guide projection 31 Vertical slit 32 Horizontal slit 33 Receiving slit 34 Spring 35 Operation string 43 Lock release cylinder 44 Rodless cylinder 45 Operation string pushing down pulley 46 Sway prevention cylinder

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiroshi Kawabata 1-4-8 Tosabori, Nishi-ku, Osaka-shi Inside Inax Co., Ltd. (56) References Japanese Utility Model 1983-67087 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65G 47/38 B65G 47/61 B65G 17/20 B65D 88/00-90/66

Claims (4)

(57) [Claims] A storage bag having an opening at the top and bottom, a string wrapped around an opening at the bottom, squeezing the string to close the opening at the bottom, and loosening the string to open the opening. In the bag conveyor which is suspended and transported, a lock pin serving also as a weight having an engagement groove is provided in an extension of the string, and the lock pin is received on the outer side of the upper edge of the storage bag and can be disengaged. A lock mechanism having a hook member is provided, and an operation cord connected to the lock pin and having an upper end fixed to the upper edge of the bag is provided. The operation cord is arranged so as to penetrate through the lock mechanism, and the engagement of the hook member of the lock mechanism with the lock pin secures the closed state of the bag bottom by squeezing the cord. Member and lock pin A bag pin opening / closing device for a bag conveyor, wherein the lock pin is dropped by releasing engagement with the bag pin and loosened to open the bag bottom. 2. A lock release cylinder which receives a lock pin in the lock mechanism, and performs an operation of engaging and disengaging the lock pin and the hook member by moving up and down in the lock mechanism. The upper part of the lock is projected to the lock mechanism and the operation cord connected to the tip of the lock pin passes through the lock maintaining cylinder and the lock release cylinder, and the tip is fixed to the upper edge of the bag, and the bag conveyor is opened and closed with the bag bottom. A stopper device for stopping and fixing the bag at the position, a lock release cylinder for pressing the upper part of the lock release cylinder to release the engagement between the lock pin and the hook member, and a press for pulling down the operation cord and raising the lock pin The bag in the bag conveyor according to claim 1, further comprising a rodless cylinder provided with a pulley. Bottom switch. 3. A rectangular outer housing fixed to the outer side of the upper edge of the storage bag and formed with a through-hole leaving an engaging edge at the top and bottom, and a cylindrical protrusion projecting upward from the through-hole at the top of the outer housing. A rectangular unlocking cylinder having an upper portion of the outer housing and capable of being engaged with an engaging edge on the upper portion thereof and housed in the outer housing so as to be movable up and down, and a small diameter located at an upper portion within a cylindrical protrusion of the unlocking tube. It has a cylindrical upper portion, a lower portion protruding downward from a through hole below the outer housing, and a lower portion having an engaging flange for engaging with a lower engaging edge of the outer housing. A lock holding cylinder movably accommodated, a string at the top and bottom, a substantially conical head at the tip, an engagement groove near this head, and can be received in the lock holding cylinder. And a hook member that engages with the engagement groove of the lock pin and maintains the hook state of the lock pin. The lock release cylinder has a vertical slit that receives and guides a guide projection protruding from the lock maintenance cylinder, and a horizontal slit that communicates with the vertical slit and that can receive the hook member. The lock maintaining cylinder has a receiving slit which can be opposed to the lateral slit of the unlocking cylinder and receives the hook member. The hook member located in the receiving slit is engaged with the engaging groove of the lock pin. To maintain the locked state of the lock pin, and by interposing an expansion spring between the lock release cylinder and the lock maintenance cylinder, the accumulating force of the lock release cylinder upward and the lock maintenance cylinder downward. A lock mechanism used for a bag bottom opening / closing device, which is provided. 4. A bag conveyer is provided with a cylinder facing at least two opposing positions on the upper edge of the bag above the opening / closing position of the bag bottom of the bag conveyor, and pressing the opposing two positions of the storage bag by pressing the cylinder. An anti-sway device for a bag, which prevents the sway of the bag.