Discharge device

Abstract

To provide a discharge device which is easy to perform maintenance and reduces leakage of a resin material.SOLUTION: A discharge device 1 for discharging a resin material is provided with a cartridge 20 for storing the resin material inside and discharging the resin material by sliding a cartridge sliding part inside; and a discharge device body 10 for making the cartridge 20 detachable, wherein the discharge device body 10 includes a pressing member 13 for pressing the cartridge sliding part by handle operation; and a backflow prevention member 14 provided on the pressing member 13 and brought into close contact with a cartridge sliding part and a cartridge wall part positioned around the cartridge sliding part; and a one-part nozzle 30 detachable from the cartridge and an elastic tip 40 detachable from the one-part nozzle 30 are provided at a resin material discharge position of the cartridge 20.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to dispensing devices. [Background technology]

[0002] Conventionally, when repairing cracks in a structure, a construction method of injecting a resin material (repair material) into the cracked portion has been known. As an example, Patent Document 1 discloses a method of attaching an elastic attachment to the tip nozzle of a cartridge. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 4-24366 Summary of the Invention [Problem to be solved by the invention]

[0004] The elastic attachment described in Patent Document 1 is directly attached to the tip nozzle of the cartridge, so it has a structure that makes it difficult to perform maintenance and / or cleaning after cracks are repaired. Specifically, there is a risk that repair material will adhere to the tip nozzle and / or cartridge after cracks are repaired, and cleaning the repair material that has adhered to the cartridge is particularly troublesome when the tip nozzle is directly attached to the cartridge.

[0005] Moreover, the repair material injection cartridge described in Patent Document 1 has a nozzle portion for injecting the repair material at one end and a press-in portion such as a gun attachment portion at the other end. Furthermore, Patent Document 1 discloses that the repair material injection cartridge is attached to an air gun or a hand gun. When the repair material is discharged from the repair material injection cartridge attached to the air gun or the hand gun, depending on the magnitude of the pressure applied to the press-in portion, the repair material may leak from the press-in portion.

[0006] Therefore, an object of the present disclosure is to provide a discharge device that is easy to maintain and reduces leakage of resin material. [Means for solving the problem]

[0007] In order to solve the above problems, the discharge device of the present disclosure is: A discharge device for discharging a resin material, a cartridge that contains a resin material therein and discharges the resin material by a cartridge sliding part sliding within the cartridge; a discharge device body to which the cartridge is detachably attached, The ejection device body includes a pressing member that presses the cartridge sliding portion by operating a handle; a backflow prevention member provided on the pressing member and in close contact with the cartridge sliding portion and a cartridge wall portion located around the cartridge sliding portion, The cartridge is provided at a resin material discharge position with a one-part nozzle that is detachable from the cartridge, and a tip that is detachable from the one-part nozzle and has elasticity. Effect of the Invention

[0008] According to the present disclosure, it is possible to provide a discharge device that is easy to maintain and reduces leakage of resin material. More specifically, since a removable one-part nozzle is provided between the cartridge and the tip, the one-part nozzle can be removed from the cartridge for maintenance. Furthermore, in the discharge device of the present disclosure, since the backflow prevention member is in close contact with the cartridge sliding portion and the cartridge wall portion located around the cartridge sliding portion, it is possible to reduce leakage of resin material outside the backflow prevention member. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic front view of a first embodiment of a dispensing device of the present disclosure. [Diagram 2]FIG. 2 is a schematic cross-sectional view of the cartridge of the first embodiment. [Diagram 3] FIG. 3 is a schematic front view of the discharge device main body of the first embodiment. [Figure 4A] FIG. 4A is a schematic perspective view of the one-part nozzle of the first embodiment. [Figure 4B] FIG. 4B is a schematic cross-sectional view of the one-part nozzle of the first embodiment. [Figure 5A] FIG. 5A is a schematic perspective view of the chip of the first embodiment. [Figure 5B] FIG. 5B is a schematic cross-sectional view of the chip of the first embodiment. [Figure 6A] FIG. 6A is a partial schematic front view of a first embodiment of a dispensing device of the present disclosure. [Figure 6B] FIG. 6B is a schematic cross-sectional view for explaining a discharge mode of the discharge device of the present disclosure. [Figure 7] FIG. 7 is a partial schematic front view of a second embodiment of a dispensing device of the present disclosure. [Figure 8] FIG. 8 is a partial schematic front view of a third embodiment of a dispensing device of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The "ejection device" of the present disclosure will be described in detail below. Although the description will be made with reference to the drawings as necessary, the contents shown in the drawings are merely shown as schematic examples for the understanding of the present disclosure, and the appearance and dimensional ratios may differ from the actual product.

[0011] The "upper and lower directions" and "left and right directions" used directly or indirectly in this specification correspond to the upper and lower directions and left and right directions in the drawings, respectively. Unless otherwise specified, the same reference numerals or symbols indicate the same members or parts or the same meanings. In addition, the vertical downward direction (i.e., the direction in which gravity acts) can be considered to correspond to the "downward direction," and the opposite direction to the "upward direction."

[0012] The "ejection device" of the present disclosure is intended to mean a device capable of ejecting a material having fluidity. Note that the "material having fluidity" in this specification is intended to mean, for example, a liquid body, and may contain particulate or colloidal solid matter.

[0013] [Configuration of the Discharge Device of the First Embodiment] The discharge device 1 of the first embodiment of the present disclosure includes a cartridge 20, a discharge device body 10 to which the cartridge is detachably attached, a one-part nozzle 30 detachably attached to the cartridge 20, and an elastic tip 40 detachably attached to the one-part nozzle 30. Each component will be described in detail below with reference to the drawings.

[0014] -Cartridge (see Figure 2)- The cartridge 20 has a shape that is detachable from the discharge device main body 10. For example, it may have a cylindrical shape. The cartridge 20 may be a resin cartridge. The cartridge 20 contains a resin material R therein. For example, the resin material R may be a filler (caulking material or sealing material) used to repair cracks in structures.

[0015] The cartridge 20 has a discharge surface 21 that discharges the resin material R, and an opposing surface that faces the discharge surface 21. The discharge surface 21 has a discharge hole 22 that discharges the resin material R, and an attachment part 23 to which the one-part nozzle 30 is detachably attached. The attachment part 23 may be a screw groove, for example. The opposing surface acts as a cartridge sliding part 24. That is, it is slidable in the inner direction (X direction) of the cartridge 20. When the opposing surface (cartridge sliding part 24) slides in the inner direction (X direction) of the cartridge 20, the resin material R contained inside the cartridge is pushed out, and the resin material R is discharged from the discharge surface 21.

[0016] -Discharge device body (see Figure 3)- The discharge device body 10 makes it possible to press the cartridge sliding portion 24 (see FIG. 2) by operating the handle. In other words, the discharge device body 10 of the present disclosure does not require a compressor and a power source as a power source like an air gun. Therefore, the discharge device body 10 of the present disclosure includes a holder 11 to which the cartridge 20 is attached, a lever 12 for operating the handle, a piston rod (pressing member 13) that is displaced continuously or intermittently toward the cartridge 20 side (X direction) by gripping the lever 12, and a backflow prevention member 14.

[0017] The lever 12 is a member that applies a pressing force to the piston rod (pressing member 13), and may have a fulcrum P for rotating the lever and a point of action A for applying a pressing force to the piston rod. As shown in FIG. 3, if the distance from the fulcrum P to the position where the finger rests when the lever 12 is gripped is L1, and the vertical distance from the point of action A to the fulcrum P is L2, L1 may be 50 mm or more and 160 mm or less, and L2 may be 10 mm or more and 30 mm or less. If the force of gripping the lever 12 is F1 and the pressing force applied to the point of action A (pressing force applied to the piston rod) is F2, the pressing force calculated by F2=F1×L1 / L2 can be applied to the piston rod (pressing member 13). In other words, L1 / L2 may be designed to be 1.67 or more and 16 or less. With this configuration, the pressing force applied to the piston rod (pressing member 13) can be increased, and the discharge pressure of the resin material R discharged from the cartridge 20 can be increased.

[0018] The piston rod (pressing member 13) may be provided along the length direction (X direction) of the holder 11. Then, by a single gripping action of the lever 12, the piston rod can be displaced a predetermined distance toward the cartridge 20. This allows the resin material to be discharged from the discharge surface 21 of the cartridge 20.

[0019] A backflow prevention member 14 is provided at the tip of the piston rod (pressing member 13). In this specification, the "backflow prevention member" is a member for preventing the resin material R in the cartridge 20 from flowing back. More specifically, it is a member for preventing the resin material R from flowing back in the -X direction of FIG. 2. The backflow prevention member 14 is in close contact with the cartridge sliding part 24 and the cartridge wall part 25 located around the cartridge sliding part 24. Therefore, even if the cartridge sliding part 24 is pressed by the pressing member 13 and the resin material leaks from the cartridge sliding part 24, the backflow prevention member 14 is in close contact with the cartridge wall part 25 located around the cartridge sliding part 24, so that leakage of the resin material R from the discharge device 1 can be reduced.

[0020] The backflow prevention member 14 may be made of resin, taking into consideration the adhesion of the resin material R. As an example, the backflow prevention member 14 may be made of an olefin resin such as polyethylene or polypropylene. In particular, polypropylene is preferable. By making the backflow prevention member 14 out of resin, even if the resin material R adheres to the backflow prevention member 14, the adhered resin material can be easily peeled off during maintenance or the like. Note that the backflow prevention member 14 is not limited to being made of polypropylene, and other resins may be used as long as they are materials that can be easily peeled off from the resin material R.

[0021] In a preferred embodiment of the backflow prevention member 14, the area S1 of the attachment surface of the backflow prevention member 14 with the pressing member 13 is larger than the area S2 of the contact surface with the cartridge sliding portion 24 (see FIG. 3). As an example, the value calculated by dividing the area S1 of the attachment surface by the area S2 of the contact surface may be larger than 1 and not larger than 2. With this configuration, the area S1 of the attachment surface of the backflow prevention member 14 with the pressing member 13 is relatively large, so that when a pressing force is applied from the pressing member 13, the backflow prevention member 14 deforms in such a way that it swells, thereby further improving the sealing with the cartridge wall portion 25. This makes it possible to reduce leakage of the resin material R outside the backflow prevention member 14.

[0022] -One-part nozzle (see Fig. 4A and B)- The one-part nozzle 30 is detachably attached to the resin discharge position (attachment portion 23) of the cartridge 20. Specifically, the one-part nozzle 30 may be provided with a thread groove 31 that corresponds to the thread groove of the attachment portion 23.

[0023] As used herein, a "one-part nozzle" is, as the name suggests, made up of one or a single component. Therefore, compared to nozzles made up of multiple parts, it does not require disassembly for cleaning or other maintenance.

[0024] Furthermore, unlike the conventional technology, the discharge device 1 of the present disclosure has a one-part nozzle 30 interposed between the tip 40 and the cartridge 20. Therefore, compared to a case where the tip 40 is directly attached to the cartridge 20, it is possible to reduce adhesion of the resin material to the cartridge 20. Therefore, the discharge device 1 of the present disclosure is easier to maintain than the conventional technology.

[0025] As a preferred embodiment of the one-part nozzle 30, the one-part nozzle 30 may be made of resin. By making the one-part nozzle 30 from resin, the production cost can be reduced compared to a nozzle made of metal.

[0026] The one-part nozzle 30 may be made of an olefin resin such as polyethylene or polypropylene. In particular, by making the one-part nozzle 30 out of polypropylene, even if the resin material R adheres to the one-part nozzle 30, the resin material R can be easily peeled off. Therefore, maintenance is easy to perform.

[0027] Moreover, the one-part nozzle 30 may be made of a resin having a higher rigidity than the tip 40 described below. If the one-part nozzle 30 has a high rigidity, the tip 40 can be appropriately fixed to the cartridge 20 even when pressed by the pressing member 13.

[0028] The one-part nozzle 30 may have a tapered portion 32 that tapers toward the tip. By providing the tapered portion 32, it is possible to make it difficult for the resin material to adhere to the one-part nozzle 30, compared to a structure without a taper. Even if the resin material R adheres to the tapered portion 32, the taper angle is gentle, making maintenance easy.

[0029] The one-part nozzle 30 may include an engaging protrusion 33 for mounting a tip 40, which will be described later. The engaging protrusion 33 may act as a discharge flow path when discharging the resin material from the cartridge 20. By inserting the tip 40 into the engaging protrusion 33, the tip 40 can be easily attached to and detached from the one-part nozzle 30.

[0030] The engaging protrusion 33 may have a shape that does not protrude from the outer surface of the one-part nozzle 30. In other words, the engaging protrusion 33 may extend to a length that reaches the outer surface of the one-part nozzle 30. By making the length of the engaging protrusion 33 relatively long, the attachment of the tip 40 can be more reliably performed.

[0031] -Chip (see Fig. 5A and B)- The tip 40 has elasticity and is detachable from the one-part nozzle 30. The tip 40 of this embodiment has a cylindrical shape and may have an opening 41 at the center that engages with the engaging protrusion 33 of the one-part nozzle 30 and acts as a flow path for discharging the resin material from the cartridge 20.

[0032] The tip 40 may be more flexible than the one-part nozzle 30. By making the tip 40 flexible, even if the discharge device 1 is pressed against the cracked portion in order to inject the resin material to a deeper position in the cracked portion, the tip 40 can be deformed in response to the pressing, and the resin material R can be effectively supplied to the cracked portion.

[0033] According to the discharge device 1 configured as above, it is possible to provide a discharge device which is easy to maintain and reduces leakage of resin material.

[0034] [Operation of the Discharge Device of the First Embodiment] Next, the operation of the discharge device of this embodiment will be described with reference to Figures 6A and 6B. First, the virgin sheet of the cartridge 20 is broken, and the one-part nozzle 30 is attached to the attachment portion 23 of the cartridge 20. In addition, the tip 40 is attached to the engagement protrusion 33 of the one-part nozzle 30. Then, the cartridge 20 is attached to the holder 11 of the discharge device 1.

[0035] Next, the cracks in the structure are visually checked, and the discharge device 1 of the present embodiment is pressed against the cracks. By pressing the discharge device 1 against the cracks, it becomes possible to inject the resin material R to a deeper position in the cracks.

[0036] After pressing the discharging device 1 against the cracked area, the lever 12 of the discharging device 1 is gripped. By gripping the lever 12, the pressing member 13 moves a predetermined distance L3 toward the inside of the cartridge 20, as shown in Fig. 6B. Then, the resin material R is discharged from the tip 40.

[0037] Here, as shown in FIG. 6B, in the discharge device 1 of this embodiment, the backflow prevention member 14 is in close contact with the cartridge wall 25 located around the cartridge sliding part 24, so that leakage of the resin material R from the discharge device 1 can be reduced. In terms of leakage of the resin material R, since the one-part nozzle 30 is made of one part, leakage of the resin material R from the one-part nozzle 30 can be reduced compared to when it is made of a plurality of parts. In other words, the discharge device 1 of this embodiment has the effect of effectively reducing leakage of the resin material R from the cartridge 20 on both sides of the discharge surface 21 that discharges the resin material R and the opposing surface (cartridge sliding part 24) that faces the discharge surface 21.

[0038] Furthermore, the discharge device 1 of this embodiment is also useful for maintenance and / or cleaning after discharging the resin material R. Specifically, the discharge device 1 of the present disclosure is different from the conventional technology in that the one-part nozzle 30 is interposed between the tip 40 and the cartridge 20. Therefore, compared to a case where the tip 40 is directly attached to the cartridge 20, adhesion of the resin material to the cartridge 20 can be reduced.

[0039] Furthermore, the one-part nozzle 30 is detachable from the cartridge 20, and the tip 40 is detachable from the one-part nozzle. Since the one-part nozzle 30 is made of a single member, it does not need to be disassembled for maintenance and / or cleaning, and maintenance and / or cleaning can be easily performed.

[0040] As described above, according to the discharge device 1 of the present embodiment, a discharge device that is easy to maintain and reduces leakage of the resin material R can be provided.

[0041] [Configuration of the Discharge Device of the Second Embodiment] Next, a discharge device according to a second embodiment of the present disclosure will be described with reference to Fig. 7. The discharge device according to the second embodiment differs from the discharge device according to the first embodiment in the configuration of the tip 40, and other configurations are substantially similar to those of the discharge device according to the first embodiment. The following description will focus on the differences from the discharge device according to the first embodiment.

[0042] 7, the tip 40 of the second embodiment may be provided with a visor portion 42 that protrudes in the Y direction and / or Z direction from the one-part nozzle 30 on the tip discharge surface side. By providing the visor portion 42 on the tip 40, the visor portion 42 can be visually confirmed, and the discharge position of the resin material R can be inferred from the position of the visor portion 42. Therefore, the resin material R can be discharged to the desired position.

[0043] [Configuration of the Discharge Device of the Third Embodiment] Next, a discharge device according to a third embodiment of the present disclosure will be described with reference to Fig. 8. The discharge device according to the third embodiment differs from the discharge devices according to the above-mentioned embodiments (first and second embodiments) in the configuration of the tip 40, but other configurations are substantially similar to those of the discharge devices according to the above-mentioned embodiments. The following description will focus on the differences from the discharge devices according to the above-mentioned embodiments.

[0044] As shown in Fig. 8, the tip 40 of the third embodiment may have a ratio of tip diameter D to tip overall length T of 1 or more and 10 or less. In other words, the overall length of the tip 40 is set to be longer than that of the above-mentioned embodiments. With this configuration, the ejection position of the resin material R can be conveniently confirmed visually. Therefore, the resin material R can be ejected more conveniently to the desired position.

[0045] It should be noted that the embodiments disclosed herein are illustrative in all respects and are not intended to be limiting. Therefore, the technical scope of the present disclosure is not interpreted solely by the above-described embodiments, but is defined based on the claims. The technical scope of the present disclosure also includes all modifications within the scope and meaning equivalent to the claims.

[0046] The ejection device of the present disclosure includes the following aspects. <1> A discharge device for discharging a resin material, a cartridge that contains a resin material therein and discharges the resin material by a cartridge sliding part sliding within the cartridge; a discharge device body to which the cartridge is detachably attached, The ejection device body includes a pressing member that presses the cartridge sliding portion by operating a handle; a backflow prevention member provided on the pressing member and in close contact with the cartridge sliding portion and a cartridge wall portion located around the cartridge sliding portion, The ejection device includes a one-part nozzle detachably attached to the cartridge at a resin material ejection position of the cartridge, and a tip detachably attached to the one-part nozzle and having elasticity. <2> The one-part nozzle is made of resin, <1> 2. The discharge device according to claim 1 . <3> The one-part nozzle is made of polypropylene; <2> 2. The discharge device according to claim 1 . <4> The resin of the one-part nozzle is a resin having a higher rigidity than that of the tip. <2> or <3> 2. The discharge device according to claim 1 . <5> The one-part nozzle has a tapered portion that tapers toward a tip. <1> ~ <4> 13. The discharge device according to claim 12, <6> The one-part nozzle has an engagement protrusion for attaching the tip. <1> ~ <5> 13. The discharge device according to claim 12, <7> The engaging protrusion is shaped so as not to protrude from the outer surface of the one-part nozzle. <6> 2. The discharge device according to claim 1 . <8> The tip has a ratio of tip diameter to tip total length of 1 to 10. <1> ~ <7> 13. The discharge device according to claim 12, <9> The backflow prevention member is made of resin. <1> ~ <8> 13. The discharge device according to claim 12, <10> the backflow prevention member has an attachment surface area with respect to the pressing member that is larger than an area of ​​a contact surface area with the cartridge sliding portion; <1> ~ <9> 13. The discharge device according to claim 12, [Industrial Applicability]

[0047] The dispensing device of the present disclosure is easy to maintain and is used to reduce leakage of resin material. [Explanation of symbols]

[0048] 1 Dispensing device 10. Discharge device body 11 Holder 12 Lever 13 Pressing member 14 Backflow prevention member 20 Cartridge 21 Discharge surface 22 Discharge hole 23 Mounting part 24 Cartridge sliding part 25 Cartridge wall 30 One-part nozzle 31 Thread groove 32 Tapered section 33 Engagement protrusion 40 Chip 41 Aperture 42 Eaves R Resin material A Point of action P fulcrum L1: The distance from the fulcrum to the position where your fingers rest when you grip the lever L2 Vertical distance from the point of application to the fulcrum

Claims

1. A discharge device for discharging a resin material, a cartridge that contains a resin material therein and discharges the resin material by a cartridge sliding part sliding within the cartridge; a discharge device body to which the cartridge is detachably attached, The ejection device main body includes a pressing member that presses the cartridge sliding portion by operating a handle; a backflow prevention member provided on the pressing member and in close contact with the cartridge sliding portion and a cartridge wall portion located around the cartridge sliding portion, The ejection device includes a one-part nozzle detachably attached to the cartridge at a resin material ejection position of the cartridge, and a tip detachably attached to the one-part nozzle and having elasticity.

2. The dispensing device according to claim 1 , wherein the one-part nozzle is made of resin.

3. The dispensing device of claim 2 , wherein the one-part nozzle is made of polypropylene.

4. The dispensing device of claim 2 , wherein the resin of the one-part nozzle is a resin having a higher rigidity than that of the tip.

5. The discharge device according to claim 1 , wherein the one-part nozzle has a tapered portion that narrows toward a tip.

6. The dispensing device according to claim 1 , wherein the one-part nozzle comprises an engagement protrusion for attaching the tip.

7. The discharge device according to claim 6 , wherein the engaging protrusion is shaped so as not to protrude from an outer surface of the one-part nozzle.

8. The discharge device according to claim 1 , wherein the tip has a ratio of tip diameter to total tip length of 1 to 10.

9. The discharge device according to claim 1 , wherein the backflow prevention member is made of resin.

10. The discharge device according to claim 1 , wherein the backflow prevention member has a mounting surface area with respect to the pressing member that is larger than a contact surface area with the cartridge sliding portion.

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