Dust collector filter mounting structure and dust collector

Abstract

To provide a dust collector filter mounting structure and dust collector that facilitate attachment and detachment, particularly removal. [Solution] A gripping device 57 is attached to the annular fixing member 51, the opening 41 end of the dust collector filter 15 is inserted into the annular fixing member and folded outwards, and in this state the opening end of the dust collector filter is inserted into the dust collector drum 9 and fixed by the annular fixing member, so that when removing the dust collector filter from the drum, it can be removed with a single touch by pulling the dust collector filter together with the annular fixing member via the gripping device.

Description

Technical Field

[0001] The present invention relates to an attachment structure of a filter for a dust collector and a dust collector, and particularly to an improvement in the detachment, particularly the removal operation, of the filter from a drum.

Background Art

[0002] A conventional dust collector has a configuration as described in, for example, Patent Document 1. Note that Patent Document 1 is by the applicant of the present utility model registration application. First, there is a frame body, and a drum is attached to this frame body. For example, a nylon filter is attached on the drum, and a bag body is attached under the drum.

[0003] The filter is in a bag shape, and a ring-shaped fixing band is sewn to the opening end thereof. When attaching the filter to the drum, the opening end of the filter is inserted into the drum with the fixing band bent. By elastically restoring the bent fixing band into a ring shape, the opening end of the filter is pressed against the inner side of the drum and fixed.

[0004] A fan is attached to the frame body. The fan is composed of a casing, an impeller installed inside the casing, and a drive motor attached outside the casing for rotating the impeller.

[0005] The casing is provided with an air inlet and a discharge pipe is connected thereto. The discharge pipe is connected to the drum.

[0006] In the above configuration, starting the drive motor causes the impeller to rotate, thereby drawing in outside air through the intake port and discharging it into the drum through the discharge pipe. The air discharged into the drum flows upward, trapping dust particles in the air with the filter, which then fall downward. The fallen dust particles are collected inside the bag. Meanwhile, the purified air passes through the filter and is released into the outside air.

[0007] The above-mentioned filter is replaced with a new one periodically, and the bag itself is also removed periodically to dispose of the dust accumulated inside. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Utility Model Registration No. 3217790 Gazette [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] The conventional configuration described above presented a problem: attaching and detaching the filter from the drum, particularly the removal process, was cumbersome. Specifically, the filter's opening end is inserted into the inside of the drum and secured by a ring-shaped fixing band. In this state, removing the filter requires feeling around to grasp the fixing band, bending it, and then pulling the filter out of the drum.

[0010] This invention was made based on these points, and its purpose is to provide a dust collector filter mounting structure and dust collector that can be attached and detached, in particular, removed. [Means for solving the problem]

[0011] To solve the above problems, the mounting structure for a dust collector filter according to claim 1 of the present invention is characterized in that a gripping device is attached to an annular fixing member, the opening end of the dust collector filter is inserted into the annular fixing member and folded outwards, the opening end of the dust collector filter is inserted into the drum of the dust collector and fixed by the annular fixing member, and when the dust collector filter is to be removed from the drum, it can be removed with a single touch by pulling the dust collector filter together with the annular fixing member via the gripping device. Furthermore, the mounting structure for a dust collector filter according to claim 2 is characterized in that, in the mounting structure for a dust collector filter according to claim 1, the annular fixing member is composed of a resin annular fixing member body and a metal band attached to the annular fixing member body. Furthermore, the mounting structure for the dust collector filter according to claim 3 is characterized in that, in the mounting structure for the dust collector filter according to claim 2, the annular fixing member is configured to be sized so that the dust collector filter can be pressed and fixed to the inside of the drum while elastically returning to a perfectly circular shape. Furthermore, the mounting structure for a dust collector filter according to claim 4 is characterized in that, in the mounting structure for a dust collector filter according to claim 1, the gripping device is annular in shape and is movably passed through the annular fixing member. Furthermore, the dust collector according to claim 5 is characterized by having a mounting structure for a dust collector filter as described in any one of claims 1 to 4. [Effects of the Invention]

[0012] As described above, according to the dust collector filter of claim 1 of the present invention, a gripping device is attached to the annular fixing member, the opening end of the dust collector filter is inserted into the annular fixing member and folded outwards, and in that state the opening end of the dust collector filter is inserted into the drum of the dust collector and fixed by the annular fixing member, and when removing the dust collector filter from the drum, the dust collector filter can be removed with a single touch by pulling the annular fixing member together with the gripping device, thereby making it easier to attach and detach the filter from the drum, especially the removal work. Furthermore, according to the mounting structure for a dust collector filter according to claim 2, in the mounting structure for a dust collector filter according to claim 1, the annular fixing member is composed of a resin annular fixing member body and a metal band attached to the annular fixing member body, which makes it possible to attach and detach it from the drum, in particular, to remove it. Furthermore, according to the mounting structure for the dust collector filter of claim 3, in the mounting structure for the dust collector filter of claim 2, the annular fixing member is configured to be sized so that it can press and fix the dust collector filter to the inside of the drum while elastically returning to a perfect circular shape, thereby facilitating attachment and detachment to the drum, particularly removal. Furthermore, the mounting structure for the dust collector filter according to claim 4 is the mounting structure for the dust collector filter according to claim 1, wherein the gripping device is annular and is passed through the annular fixing member in a movable manner, thereby facilitating attachment and detachment to the drum, especially removal, and allowing the position of the gripping device to be freely adjusted. Furthermore, the dust collector according to claim 5 is equipped with a mounting structure for the dust collector filter described in any of claims 1 to 4, which makes it possible to attach and detach the filter from the drum, in particular, to remove it. [Brief explanation of the drawing]

[0013] [Figure 1] This figure shows one embodiment of the present invention and is a perspective view of a dust collector. [Figure 2]A diagram showing an embodiment of the present invention. Fig. 2(a) is a front view of the filter for the dust collector, Fig. 2(b) is a plan view of the filter for the dust collector, Fig. 2(c) is a bottom view of the filter for the dust collector, and Fig. 2(d) is a side view of the filter for the dust collector. [Figure 3] A diagram showing an embodiment of the present invention. Fig. 3(a) is a perspective view of the annular fixing member and the gripping tool, Fig. 3(b) is a plan view of the annular fixing member and the gripping tool, and Fig. 3(c) is a cross-sectional view taken along the line c-c of Fig. 3(b). [Figure 4] A diagram showing an embodiment of the present invention. It is a perspective view showing the state of setting the annular fixing member and the gripping tool on the filter for the dust collector. [Figure 5] A diagram showing an embodiment of the present invention. It is a perspective view showing the state of attaching the filter for the dust collector to the drum. [Figure 6] A diagram showing an embodiment of the present invention. It is a perspective view showing the state of removing the filter for the dust collector from the drum.

Mode for Carrying Out the Invention

[0014] Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 6. Fig. 1 is a perspective view showing the configuration of the dust collector 1 according to the present embodiment. First, there is a base 3. A plurality of casters 5 are attached to the base 3.

[0015] A pair of frames 7, 7 are erected on the base 3, and a drum 9 is attached between the upper ends of the pair of frames 7, 7. The upper edge portion of the drum 9 is a filter mounting portion 11 for the dust collector, and the lower edge portion is a bag mounting portion 13.

[0016] A dust collector filter 15 is detachably attached to the dust collector filter mounting portion 11 of the drum 9. A bag body 17 is detachably attached to the bag body mounting portion 13 of the drum 9.

[0017] A fan 21 is installed on the base 3. The fan 21 includes a casing 23, and an impeller (not shown) is rotatably installed inside the casing 23. A drive motor 25 is installed outside the casing 23, and the drive motor 25 rotationally drives the impeller.

[0018] An air inlet 27 is installed on the casing 23 and a discharge pipe 29 is attached thereto. The discharge pipe 29 is extended and connected to the drum 9.

[0019] Moreover, an operation panel 31 is attached to the base 3.

[0020] As shown in FIG. 2, the dust collector filter 15 is in a bag shape having an opening 41 at one side (the lower end in FIG. 4(a)). The dust collector filter 15 is made of, for example, polypropylene, and is composed of, for example, a spunbond nonwoven fabric with a basis weight of 70 g / m 2 Moreover, the dust collector filter 15 is formed by overlapping two spunbond nonwoven fabrics and ultrasonically welding three sides thereof. The remaining one side is the opening 41. In FIG. 2(a), the welded portions are indicated by reference numerals 43, 45, and 47. In the present embodiment, the dust collector filter 15 is used as a disposable type.

[0021] The dust collector filter 15 is detachably attached to the inside of the filter attachment portion 11 of the drum 9 via a flexible annular fixing member 51. As shown in FIG. 3(c), the annular fixing member 51 has a configuration in which an iron band 55 is partially exposed inside an annular fixing member main body 53 made of polyvinyl chloride.

[0022] A gripping tool 57 is attached to the annular fixing member 51. The gripping tool 57 is formed in an annular shape and is passed through the annular fixing member 51 in a movable state. The gripping tool 57 is made of, for example, polypropylene. Furthermore, the method for passing the annular gripping device 51 through the annular fixing member 51 can be, for example, by preparing a strip-shaped member of a predetermined length, passing it through the inside of the annular fixing member 51, and connecting both ends on the outside.

[0023] The annular fixing member 51 is configured to be sized so that it can press and fix the dust collector filter 15 against the inside of the drum 9 while elastically returning to a perfectly circular shape.

[0024] When attaching the dust collector filter 15 to the drum 9, first attach the gripping device 57 to the annular fixing member 51, and then set the dust collector filter 15 thereon. That is, as shown in Figure 4, first, the gripping device 57 is passed through the annular fixing member 51. Next, the opening 41 side of the dust collector filter 15 is inserted inside the annular fixing member 51, and the end of the opening is folded outwards.

[0025] In that state, as shown in Figure 5, the annular fixing member 51 is bent so that the opening 41 side of the dust collector filter 15 is inserted into the inside of the filter mounting portion 11 of the drum 9. Then, the bent annular fixing member 51 is returned to a circular shape by its own elastic restorative force. Figure 1 shows the installed state. In the state shown in Figure 1, the annular fixing member has elastically returned to a circular shape, and the dust collector filter 15 is pressed against the inner circumferential surface of the filter mounting portion 11 of the drum 9 and fixed in place.

[0026] To remove the dust collector filter 15 attached to the filter mounting section 11 of the drum 9, as shown in Figure 6, the gripping tool 53 is grasped by the hand 61 and the dust collector filter 15 is pulled up along with the annular fixing member 51. This allows the dust collector filter 15 to be removed from the filter mounting section 11 of the drum 9 with a single touch.

[0027] Based on the above structure, we will explain its function. First, let's explain the basic operation of the dust collector 1. By starting the drive motor 25, the impeller rotates, which draws in outside air through the intake port 27, pressurizes it, and then discharges it into the drum 9 through the discharge pipe 29. The air discharged into the drum 9 flows upward, trapping dust in the air with the filter 15 and causing it to fall downward. The fallen dust is collected in the bag 17. Meanwhile, the purified air passes through the filter 15 and is released into the outside air.

[0028] Next, we will explain how to attach and detach the dust collector filter 15. First, when attaching the dust collector filter 15 to the filter mounting portion 11 of the drum 9, the gripping tool 57 is attached to the annular fixing member 51, and the dust collector filter 15 is then set there. That is, as shown in Figure 4, first the gripping tool 57 is passed through the annular fixing member 51. Next, the opening 41 side of the dust collector filter 15 is inserted into the inside of the annular fixing member 51, and the end of the opening is folded outwards.

[0029] In that state, as shown in Figure 5, the annular fixing member 51 is bent so that the opening 41 side of the dust collector filter 15 is inserted into the inside of the filter mounting portion 11 of the drum 9. Then, the bent annular fixing member 51 is returned to a circular shape by its own elastic restorative force. Figure 1 shows the installed state. In the state shown in Figure 1, the annular fixing member has elastically returned to a circular shape, and the dust collector filter 15 is pressed against the inner circumferential surface of the filter mounting portion 11 of the drum 9 and fixed in place.

[0030] Next, to remove the dust collector filter 15 attached to the filter mounting section 11 of the drum 9, as shown in Figure 6, the gripping tool 53 is grasped and the dust collector filter 15 is pulled up together with the annular fixing member 51. This allows the dust collector filter 15 to be removed from the filter mounting section 11 of the drum 9 with a single touch, together with the annular fixing member 51.

[0031] After removing the dust collector filter 15, install the new dust collector filter 15 into the filter mounting section 11 of the drum 9 using the procedure described above.

[0032] As described above, this embodiment can achieve the following effects. First, the process of attaching and detaching the dust collector filter 15 to the filter mounting section 11 of the drum 9 can be made easier. In particular, removing the dust collector filter 15 from the filter mounting section 11 of the drum 9 can be done simply by gripping the gripping tool 53 and pulling up the dust collector filter 15 together with the annular fixing member 51, allowing the dust collector filter 15 to be easily removed with a single touch. This allows for effective use of disposable dust collector filters 15, as the number of times the filters need to be attached and detached is expected to increase when using disposable dust collector filters 15. Furthermore, since the gripping device 53 is attached by passing through the annular fixing member 51 with a ring member, its position can be freely changed, and the gripping device 53 can be positioned at a desired location.

[0033] Furthermore, this invention is not limited to the above-described embodiment. In the above embodiment, the gripping device was a ring member, but it is not limited to that; it could be a simple string, and various other configurations are possible. Furthermore, the diagrammed configuration is merely an example. [Industrial applicability]

[0034] This invention relates to a mounting structure for a dust collector filter and to a dust collector, and in particular to a design that facilitates attachment and detachment to the drum, especially removal, and is particularly suitable for dust collectors where the dust collector filter is disposable. [Explanation of symbols]

[0035] 1. Dust collector 9 Drums 15. Dust collector filters 51 Annular fixing member 53 Annular fixing member body 55 Iron band 57 Gripping tool

Claims

1. A gripping device is attached to the annular fixing member, Insert the opening end of the dust collector filter into the annular fixing member and fold it back outwards. In that state, the opening end of the dust collector filter is inserted into the drum of the dust collector and secured by the annular fixing member. The mounting structure for a dust collector filter is characterized in that, when removing the dust collector filter from the drum, the filter can be removed with a single touch by pulling the filter together with the annular fixing member via the gripping device.

2. In the mounting structure for a dust collector filter according to claim 1, The above-mentioned annular fixing member is characterized by comprising a resin annular fixing member body and a metal band attached to the annular fixing member body, thereby providing a mounting structure for a dust collector filter.

3. In the mounting structure for a dust collector filter according to claim 2, The mounting structure for a dust collector filter is characterized in that the above-mentioned annular fixing member is configured to be such that it can press and fix the dust collector filter against the inside of the drum while elastically returning to a perfectly circular shape.

4. In the mounting structure for a dust collector filter according to claim 1, The mounting structure for a dust collector filter is characterized in that the gripping device is annular in shape and is passed through the annular fixing member in a movable manner.

5. A dust collector characterized by having a dust collector filter mounting structure according to any one of claims 1 to 4.

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