Backpack type dust collector

Abstract

To smoothly attach / detach batteries.SOLUTION: A knapsack type dust collector includes: a suction port; a dust collection chamber connected to the suction port and storing a dust collection pack; a motor chamber connected to the dust collection chamber and storing a fan and a motor; and an exhaust port for exhausting gas from the motor chamber. The housing has battery openings and battery storage parts. At least parts of the battery openings are respectively arranged on a left side surface and a right side surface of the housing.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a backpack type dust collector. [Background technology]

[0002] The backpack dust collector includes a fan and a motor that generates power to rotate the fan. As the fan rotates, air is sucked in through the suction port of the backpack dust collector together with dust. The air sucked in through the suction port flows through the interior space of the backpack dust collector and is then exhausted through the exhaust port. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-018567 A Summary of the Invention [Problem to be solved by the invention]

[0004] When a battery mounting section for mounting a battery is provided on a backpack type dust collector, it is desirable that the battery can be attached and detached smoothly.

[0005] An aspect of the present invention aims to smoothly attach and detach a battery. [Means for solving the problem]

[0006] According to one aspect of the present invention, there is provided a backpack type dust collector comprising a housing having a suction port, a dust collection chamber connected to the suction port and housing a dust collection pack, a motor chamber connected to the dust collection chamber and housing a fan and a motor, and an exhaust port through which gas is discharged from the motor chamber, wherein the housing has a battery opening and a battery storage section, and at least a portion of the battery opening is provided on each of the left and right sides of the housing. Effect of the Invention

[0007] According to the aspects of the present invention, the battery can be smoothly attached and detached. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a side view showing a backpack type dust collector according to a first embodiment. [Diagram 2] FIG. 2 is a side view showing the backpack type dust collector according to the first embodiment. [Diagram 3] FIG. 3 is a cross-sectional view showing the backpack type dust collector according to the first embodiment. [Figure 4] FIG. 4 is a front view showing the backpack type dust collector according to the first embodiment. [Diagram 5] FIG. 5 is a perspective view showing the backpack type dust collector according to the first embodiment. [Figure 6] FIG. 6 is a cross-sectional view showing the vicinity of the drive unit according to the first embodiment. [Figure 7] FIG. 7 is a diagram showing the vicinity of the exhaust port according to the first embodiment. [Figure 8] FIG. 8 is a view of the exhaust port according to the first embodiment as viewed from below. [Figure 9] FIG. 9 is a cross-sectional view showing the dust collection bag according to the first embodiment. [Figure 10] FIG. 10 is a diagram for explaining the operation of the vibration device according to the first embodiment. [Figure 11] FIG. 11 is a diagram for explaining the operation of the operating member according to the first embodiment. [Figure 12] FIG. 12 is a top view showing a schematic operation when the battery according to the first embodiment is mounted in the battery mounting section. [Figure 13] FIG. 13 is a diagram showing a schematic state in which the battery according to the first embodiment is mounted in the battery mounting section. [Figure 14] FIG. 14 is a top view showing a schematic view of the operation when the battery according to the second embodiment is attached. [Figure 15]FIG. 15 is a top view showing a schematic view of the operation when the battery according to the third embodiment is attached. [Figure 16] FIG. 16 is a top view showing a schematic view of the operation when the battery according to the third embodiment is attached. [Figure 17] FIG. 17 is a diagram illustrating a battery and a battery mounting section according to the fourth embodiment. [Figure 18] FIG. 18 is a diagram illustrating a battery and a battery mounting section according to the fourth embodiment. [Figure 19] FIG. 19 is a diagram illustrating a movement mechanism according to the fifth embodiment. [Figure 20] FIG. 20 is a diagram illustrating a battery and a battery mounting section according to the sixth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. The components according to each embodiment can be appropriately combined. Some components can be omitted.

[0010] In the following description, the positional relationship of each part will be described using the terms "left", "right", "front", "rear", "upper", and "lower". These terms indicate relative positions or directions based on the operator WM.

[0011] [First embodiment] Fig. 1 is a side view showing a backpack type dust collector 1 according to this embodiment. As shown in Fig. 1, the backpack type dust collector 1 is used in a state where it is carried on the back of an operator WM. The backpack type dust collector 1 includes a housing 2, a hose 4 connected to a suction port 3 of the housing 2, a pipe 5 connected to the hose 4, a nozzle 6 connected to the pipe 5, a battery mounting section 8 to which a general-purpose battery 7 is attached, and an operating device 9.

[0012] The general-purpose battery 7 can be used as a power source for various electrical devices. The general-purpose battery 7 can be used as a power source for power tools. The general-purpose battery 7 can be used as a power source for electrical devices other than power tools. The general-purpose battery 7 can be used as a power source for dust collectors other than the backpack type dust collector 1 according to this embodiment. In the following description, the general-purpose battery 7 will be referred to as battery 7 as appropriate.

[0013] The housing 2 is carried on the back of the worker WM. The housing 2 is attached to the back of the worker WM by a shoulder belt 10A and a waist belt 10B. The shoulder belt 10A is attached to the shoulder of the worker WM. The waist belt 10B is attached to the waist of the worker WM.

[0014] The housing 2 has an internal space. The housing 2 has a front surface 2A facing forward, a rear surface 2B facing backward, an upper surface 2C facing upward, a lower surface 2D facing downward, a left side surface 2E facing left, and a right side surface 2F facing right. When the housing 2 is carried on the back of the worker WM, the front surface 2A of the housing 2 faces the back of the worker WM.

[0015] The suction port 3 is provided at the top of the housing 2. The hose 4 is flexible. One end of the hose 4 is connected to the suction port 3. The other end of the hose 4 is connected to one end of a pipe 5. The other end of the pipe 5 is connected to a nozzle 6. The nozzle 6 has a suction port.

[0016] The housing 2 has a battery opening 11 through which the battery 7 can pass and a battery accommodating section 12 connected to the battery opening 11. The battery 7 is accommodated in the battery accommodating section 12. The battery opening 11 is provided in a lower portion of the housing 2. The battery attachment section 8 is disposed in the battery accommodating section 12.

[0017] The operating device 9 is operated by an operator WM. The operating device 9 includes, for example, a switch for starting the backpack type dust collector 1. The operating device 9 can be attached to a waist belt 10B.

[0018] Fig. 2 is a side view showing the backpack type dust collector 1 according to the present embodiment. Fig. 3 is a cross-sectional view showing the backpack type dust collector 1 according to the present embodiment, and corresponds to the cross-sectional view taken along line AA in Fig. 2. Fig. 4 is a front view showing the backpack type dust collector 1 according to the present embodiment. Fig. 5 is a perspective view showing the backpack type dust collector 1 according to the present embodiment.

[0019] The housing 2 includes a base housing 20 having an internal space, and a plate 23 connected to the base housing 20. The base housing 20 includes a front housing 21 and a rear housing 22. The front housing 21 and the rear housing 22 are connected to each other. The plate 23 is connected to the front housing 21. The plate 23 is fixed to the front housing 21 by a plurality of screw bosses 25. Note that in Figs. 4 and 5, the plate 23 is shown by phantom lines.

[0020] The front housing 21 includes a portion of the upper surface 2C, a portion of the lower surface 2D, a portion of the left side surface 2E, and a portion of the right side surface 2F. The rear housing 22 includes a rear surface 2B, a portion of the upper surface 2C, a portion of the lower surface 2D, a portion of the left side surface 2E, and a portion of the right side surface 2F. The internal space of the base housing 20 is defined by connecting the rear end of the front housing 21 and the front end of the rear housing 22.

[0021] A recess 24 is provided in the front housing 21. The recess 24 is recessed rearward in a lower portion of the front housing 21. The plate 23 is disposed so as to cover an opening of the recess 24. The plate 23 includes a front surface 2A. When the housing 2 is carried on the back of the operator WM, the plate 23 faces the back of the operator WM.

[0022] The housing 2 has a suction port 3, a dust collection chamber 13 connected to the suction port 3, a motor chamber 15 connected to the dust collection chamber 13 via a flow path 14, and an exhaust port 17 connected to the motor chamber 15 via a flow path 16.

[0023] The dust collection chamber 13, the flow path 14, the motor chamber 15, and a portion of the flow path 16 are defined in the internal space of the base housing 20. A portion of the flow path 16 is defined between a recess 24 of the front housing 21 and the plate 23.

[0024] The dust collection chamber 13 is provided in an upper portion of the internal space of the base housing 20. The dust collection chamber 13 is defined by a partition wall 13W disposed around at least a portion of the periphery of the dust collection chamber 13. The dust collection chamber 13 houses a dust collection pack 18. The dust collection pack 18 is connected to the suction port 3. The dust collection pack 18 is, for example, a paper pack. The dust collection pack 18 collects dust.

[0025] The motor chamber 15 is provided below the dust collection chamber 13 in the internal space of the base housing 20. The motor chamber 15 is defined by a partition wall 15W disposed around at least a portion of the periphery of the motor chamber 15. The motor chamber 15 houses a drive unit 30 including a fan 31 and a motor 32.

[0026] The flow path 14 is provided in the right part of the internal space of the base housing 20. The flow path 14 is defined by a partition wall 14W disposed around at least a part of the periphery of the flow path 14. The flow path 14 extends in the vertical direction. The flow path 14 connects the right part of the dust collection chamber 13 and the right part of the motor chamber 15.

[0027] A filter 19 is disposed at the boundary between the dust collection chamber 13 and the flow path 14. The filter 19 is, for example, a HEPA (High Efficiency Particulate Air Filter). The filter 19 is disposed on the side of the dust collection chamber 13. In this embodiment, the filter 19 is disposed to the right of the dust collection chamber 13. The filter 19 extends in the up-down direction. The filter 19 is disposed so as to face the dust collection chamber 13.

[0028] The flow path 16 connects the motor chamber 15 and the exhaust port 17. The air from the motor chamber 15 is exhausted from the exhaust port 17 to the external space of the housing 2.

[0029] Fig. 6 is a cross-sectional view showing the vicinity of the drive unit 30 according to this embodiment. As shown in Fig. 6, the drive unit 30 includes a fan 31, a motor 32 that generates power to rotate the fan 31, a fan cover 33 that houses the fan 31, a motor case 34 that supports the motor 32, a damper 36 arranged around the motor case 34, a motor support 37 that supports the motor case 34, and a support ring 38 arranged around the fan cover 33. The drive unit 30 is housed in the motor chamber 15.

[0030] The fan 31 is rotatable about a rotation axis AX. The fan 31 is disposed in the motor chamber 15 below the dust collection chamber 13 so that the rotation axis AX is perpendicular to the up-down direction. The rotation axis AX of the fan 31 extends in the left-right direction. An output shaft 32S of the motor 32 is connected to the fan 31. The rotation axis of the motor 32 and the rotation axis AX of the fan 31 coincide with each other. When the motor 32 is driven, the fan 31 rotates about the rotation axis AX.

[0031] The motor case 34 is disposed around the motor 32. The damper 36 absorbs the sound generated by the motor 32. That is, the damper 36 has a sound absorbing function. The damper 36 includes, for example, a sponge.

[0032] The motor support 37 and the support ring are each made of an elastic member such as rubber. The motor case is fixed to the housing 2 via the motor support 37 and the support ring .

[0033] The backpack type dust collector 1 includes a control board 35 disposed in the motor chamber 15. In this embodiment, the control board 35 functions as a partition wall that defines the motor chamber 15. The control board 35 is disposed to the left of the motor 32. The control board 35 is disposed downstream of the motor 32 such that a surface of the control board 35 and the rotation axis AX of the fan 31 are perpendicular to each other.

[0034] Fig. 7 is a diagram showing the vicinity of exhaust port 17 according to this embodiment. Fig. 8 is a diagram showing exhaust port 17 according to this embodiment as viewed from below. In Fig. 7, plate 23 is shown by virtual lines.

[0035] Knapsack type dust collector 1 is disposed in flow path 16 between motor chamber 15 and exhaust port 17, and is provided with slit section 40 having slit-shaped ventilation opening 41 through which air from motor chamber 15 passes.

[0036] The slit portion 40 is provided in at least a part of the housing 2. In this embodiment, the slit portion 40 is provided in the front housing 21. That is, the ventilation hole 41 is provided in a part of the front housing 21.

[0037] The ventilation opening 41 is elongated in the left-right direction. The longer side of the ventilation opening 41 is the left-right direction, and the shorter side of the ventilation opening 41 is the up-down direction. A plurality of ventilation openings 41 are arranged in the up-down direction. A rib 43 is provided between adjacent ventilation openings 41.

[0038] The slit portion 40 is disposed in the flow path 16 between the motor chamber 15 and the exhaust port 17. The rib 43 of the slit portion 40 divides the flow path 16 into a flow path 16A close to the motor chamber 15 and a flow path 16B close to the exhaust port 17. The flow path 16A between the motor chamber 15 and the slit portion 40 is defined in the internal space of the base housing 20. As shown in Figs. 3 and 6, the flow path 16A is defined by a partition wall 16W disposed around at least a portion of the flow path 16A. The flow path 16B between the slit portion 40 and the exhaust port 17 is defined between the recess 24 of the front housing 21 and the plate 23.

[0039] The dimension in the short side direction of the ventilation hole 41 is small. Because the dimension in the short side direction of the ventilation hole 41 is small, foreign matter in the external space of the housing 2 is prevented from entering the internal space of the housing 2 (flow path 16A).

[0040] The flow passage 16B extends in the vertical direction. The flow passage 16B is defined between an inner surface 24A of the recess 24 of the front housing 21 and a rear surface 23B of the plate 23. The exhaust port 17 is defined at a lower end of the flow passage 16B. That is, the exhaust port 17 is defined by a lower end of the inner surface 24A of the recess 24 and a lower end of the rear surface 23B of the plate 23.

[0041] When the housing 2 is carried by the worker WM, the ventilation opening 41 faces to the side. In this embodiment, the ventilation opening 41 faces to the right. When the housing 2 is carried by the worker WM, the exhaust opening 17 faces downward.

[0042] The backpack type dust collector (1) includes a sound absorbing member (42) disposed in at least a part of the flow path (16B) between the ventilation opening (41) and the exhaust opening (17).

[0043] 7 and 8, the sound absorbing member 42 is disposed so as to face the ventilation opening 41. The sound absorbing member 42 faces each of the multiple ventilation openings 41. At least a part of the sound absorbing member 42 is fixed to the inner surface 24A of the recess 24. At least a part of the sound absorbing member 42 is fixed to the rear surface 23B of the plate 23.

[0044] The sound absorbing member 42 includes a porous member. The sound absorbing member 42 absorbs sound propagating through the air to suppress the generation of noise. Examples of noise generated by the backpack type dust collector 1 include wind noise generated by air flowing through the ventilation opening 41 and NZ noise generated by the rotation of the fan 31.

[0045] The sound absorbing member 42 is an open-cell porous member. The sound absorbing member 42 has many minute bubbles. Open cells refer to a plurality of bubbles that are interconnected. Examples of the open-cell porous member include at least one of soft urethane sponge, grouseal, rock wool, and felt.

[0046] The open cells have a sound absorbing function. Sound enters the cells on the surface of the sound absorbing member 42. The sound that enters the cells on the surface of the sound absorbing member 42 propagates to adjacent cells. The sound hits the inner surface of the cells. Multiple cells are connected. The sound propagates through multiple cells while being reflected by the inner surface of the cells. The sound energy is attenuated by hitting the inner surface of the cells multiple times. This reduces noise.

[0047] 7, a distance D1 between the ventilation opening 41 and the sound absorbing member 42 is shorter than a distance D2 between the ventilation opening 41 and the exhaust opening 17. The distance D2 is at least twice the distance D1. The distance D1 is the distance between the center of the ventilation opening 41 and the sound absorbing member 42 in the longitudinal direction of the ventilation opening 41.

[0048] The fan 31 rotates about the rotation axis AX to generate a suction force at the suction port 3. When the suction force is generated at the suction port 3, air is sucked in together with dust from the suction port of the nozzle 6, and flows through the pipe 5 and the hose 4.

[0049] As shown by the arrows in FIG. 3, FIG. 6, and FIG. 7, the air that has flowed through the pipe 5 and the hose 4 flows into the dust collection chamber 13 through the suction port 3. The dust collection bag 18 is connected to the suction port 3. Dust contained in the air is collected by the dust collection bag 18. The air passes through the dust collection bag 18. The air that has passed through the dust collection bag 18 passes through the filter 19. The filter 19 collects minute dust that has not been collected by the dust collection bag 18. The air that has passed through the filter 19 flows through the flow path 14 and then flows into the motor chamber 15. The air that has flowed into the motor chamber 15 passes through the fan 31 and the motor 32, comes into contact with the control board 35, and then flows into the flow path 16A. The air that has flowed through the flow path 16A passes through the ventilation port 41 and flows into the flow path 16B. The air that has flowed through the flow path 16B is discharged from the exhaust port 17.

[0050] The slit-shaped ventilation hole 41 prevents foreign matter from entering the flow path 16A. There is a possibility that noise such as wind noise will be generated by the air flowing through the ventilation hole 41. In this embodiment, a sound absorbing member 42 is disposed downstream of the ventilation hole 41. The sound absorbing member 42 prevents noise from being generated.

[0051] FIG. 9 is a cross-sectional view showing the dust collection pack 18 according to this embodiment. As shown in FIG. 9, when dust accumulates in the dust collection pack 18, a load is applied from the dust collection pack 18 to the bottom surface of the dust collection chamber 13 due to the weight of the dust. In this embodiment, the filter 19 is disposed so as to face the dust collection chamber 13 at the side of the dust collection chamber 13 when the housing 2 is carried on the back of the operator WM. In this embodiment, the filter 19 is disposed to the right of the dust collection chamber 13. This prevents the filter 19 from being blocked by the dust collection pack 18 even if dust accumulates in the dust collection pack 18. Since the blockage of the filter 19 is suppressed, a decrease in the suction power of the backpack-type dust collector 1 is suppressed.

[0052] The backpack type dust collector 1 includes a vibration device 50 that vibrates the dust collection pack 18. As shown in FIG. 9, at least a portion of dust may adhere to the upper part of the inner surface of the dust collection pack 18. If dust adheres to the upper part of the inner surface of the dust collection pack 18, the flow rate of air passing through the dust collection pack 18 may decrease, and the suction power of the backpack type dust collector 1 may decrease. By vibrating the dust collection pack 18 by the vibration device 50, the dust that has adhered to the upper part of the inner surface of the dust collection pack 18 is shaken off and accumulates at the lower part of the dust collection pack 18. This suppresses a decrease in the suction power of the backpack type dust collector 1.

[0053] In this embodiment, the vibration device 50 has a support surface 51S that can come into contact with the dust bag 18, and includes a support member 51 supported by an elastic member 52.

[0054] 9, the support member 51 is disposed below the dust pack 18 in the dust collection chamber 13. The support surface 51S includes an upper surface of the support member 51 that can come into contact with the lower part of the dust pack 18.

[0055] The elastic member 52 is, for example, a coil spring. The elastic member 52 supports the lower surface of the support member 51. In this embodiment, the elastic member 52 is supported by the partition walls 15W and 16W arranged below the support member 51. The support member 51 is supported by the partition walls 15W and 16W via the elastic member 52. The elastic member 52 supports the support member 51 so that it can swing.

[0056] The backpack type dust collector 1 includes an operating member 53 for moving the support member 51. The operating member 53 is operated by the operator WM. An upper end of the operating member 53 is disposed so as to face the lower surface of the support member 51. A lower end of the operating member 53 is disposed outside the housing 2. An intermediate portion of the operating member 53 is connected to at least a part of the housing 2 via a hinge 54.

[0057] FIG. 10 is a diagram for explaining the operation of the vibration device 50 according to this embodiment. When the worker WM moves or walks while carrying the housing 2 on his / her back, the housing 2 also moves. When the housing 2 moves, the support member 51 supported by the elastic member 52 vibrates with an amplitude larger than that of the housing 2. When the housing 2 moves, the vibration of the housing 2 is amplified and transmitted to the support member 51 by the action of the elastic member 52. When the support member 51 vibrates strongly, the dust collection pack 18 supported by the support member 51 also vibrates strongly. When the dust collection pack 18 vibrates strongly, dust adhering to the upper part of the inner surface of the dust collection pack 18 is shaken off and accumulated at the lower part of the dust collection pack 18, as shown in FIG. 10. This suppresses a decrease in the suction power of the backpack-type dust collector 1.

[0058] FIG. 11 is a diagram for explaining the operation of the operating member 53 according to this embodiment. As shown in FIG. 11, the operator WM can operate the operating member 53 so that the operating member 53 rotates around the rotation axis of the hinge 54. When the operating member 53 is operated, the upper end of the operating member 53 moves in the vertical direction while in contact with the support member 51. This causes the support member 51 to vibrate greatly in the vertical direction. When the support member 51 vibrates greatly in the vertical direction, the dust collection pack 18 supported by the support member 51 also vibrates greatly. When the dust collection pack 18 vibrates greatly, dust attached to the upper part of the inner surface of the dust collection pack 18 is shaken off and accumulates in the lower part of the dust collection pack 18, as shown in FIG. 11. This suppresses a decrease in the suction power of the backpack type dust collector 1.

[0059] 2, 3, 5, and 6, the battery opening 11 is provided on each of the left side surface 2E and the right side surface 2F of the housing 2. The battery opening 11 and the battery receptacle 12 are provided in the lower part of the housing 2.

[0060] The battery mounting section 8 is disposed on the upper surface of the battery storage section 12. The battery mounting section 8 has a guide rail 81 that guides the battery 7, and a connection terminal 82 that is connected to the battery terminal 72 of the battery 7. The guide rail 81 extends in the left-right direction. The pair of guide rails 81 are disposed in the front-rear direction. The pair of guide rails 81 are disposed in parallel. The connection terminal 82 is disposed between the pair of guide rails 81.

[0061] The battery 7 is a general-purpose battery. The battery 7 may be a battery for a power tool. In this embodiment, the battery 7 can be used as a DC power source for the power tool. The battery 7 includes a plurality of lithium-ion battery cells. The battery 7 can be charged by a charger. The battery 7 is portable. The battery 7 supplies power to at least the motor 32.

[0062] The battery 7 has a pair of slide rails 71 guided by the guide rails 81, a battery terminal 72 connected to a connection terminal 82 of the battery mounting portion 8, and a release button 73.

[0063] The slide rails 71 are guided by guide rails 81 of the battery mounting section 8. The pair of slide rails 71 are arranged in parallel. The battery terminal 72 is arranged between the pair of slide rails 71. When the battery 7 is mounted in the battery mounting section 8, the battery terminal 72 and the connection terminal 82 are connected to each other.

[0064] The release button 73 is operated to release the fixation between the battery 7 and the battery mounting section 8. The release button 73 is provided on one end surface 7A of the battery 7. The battery 7 is mounted in the battery mounting section 8 so that the release button 73 faces outward with respect to the center of the housing 2 in the left-right direction. When the battery 7 is mounted in the battery mounting section 8, the release button 73 faces the battery opening 11.

[0065] In this embodiment, the battery mounting section 8 is inclined downward as it becomes farther away from the battery opening 11 in the battery housing section 12. That is, the battery mounting section 8 is inclined downward toward the back of the battery housing section 12. The guide rail 81 is inclined downward as it becomes farther away from the battery opening 11 in the battery housing section 12.

[0066] Each of the front housing 21 and the rear housing 22 has a bottom plate 26 that defines a bottom surface 2P of the battery accommodating section 12. The bottom surface 2P faces a part of the lower surface of the battery 7 attached to the battery attachment section 8. The bottom surface 2P slopes downward as it moves away from the battery opening 11 in the battery accommodating section 12. The bottom plate 26 of the front housing 21 is fixed to at least a part of the front housing 21 via a rib. The bottom plate 26 of the rear housing 22 is fixed to at least a part of the rear housing 22 via a rib. An opening 12K is provided in the lower part of the battery accommodating section 12. The opening 12K is provided between the bottom plate 26 of the front housing 21 and the bottom plate 26 of the rear housing 22.

[0067] Each of the front housing 21 and the rear housing 22 has an inner plate 27 that defines an inner side surface 2Q connected to the battery opening 11. The inner side surface 2Q faces a part of the side surface of the battery 7 that passes through the battery opening 11. The inner side surface 2Q of the front housing 21 inclines rearward as it moves away from the battery opening 11 in the battery accommodating section 12. The inner side surface 2Q of the rear housing 22 inclines forward as it moves away from the battery opening 11 in the battery accommodating section 12. In other words, the front-to-rear width of the passage through which the battery 7 passes in the battery accommodating section 12 decreases as it moves away from the battery opening 11 in the battery accommodating section 12.

[0068] 12 is a top view that typically illustrates the operation of mounting the battery 7 according to this embodiment to the battery mounting section 8. When mounting the battery 7 to the battery mounting section 8, the worker WM can mount the battery 7 in the battery mounting section 8 by inserting the battery 7 into the battery storage section 12 through the battery openings 11 provided on each of the left side surface 2E and the right side surface 2F.

[0069] When mounting the battery 7 in the left battery mounting section 8, the worker WM inserts the battery 7 into the battery opening 11 provided on the left side surface 2E. The worker WM slides the battery 7 to the right while guiding the slide rail 71 of the battery 7 along the guide rail 81 of the battery mounting section 8. By sliding the battery 7 to the right, the battery 7 and the battery mounting section 8 are fixed together, and the battery terminal 72 of the battery 7 and the connection terminal 82 of the battery mounting section 8 are connected together. This allows the battery 7 to be mounted in the battery mounting section 8.

[0070] When attaching the battery 7 to the right-side battery mounting section 8, the worker WM can attach the battery 7 to the battery mounting section 8 by inserting the battery 7 into the battery opening 11 provided on the right side surface 2F and then sliding it to the left.

[0071] As shown in FIG. 2 and FIG. 12, in this embodiment, the dimension W11 in the front-rear direction of the battery opening 11 is larger than the dimension W12 in the front-rear direction of the battery storage section 12 in which the guide rail 81 is arranged. The dimension W11 corresponds to the distance between the ends of the pair of inner sides 2Q closest to the battery opening 11. The dimension W12 corresponds to the distance between the ends of the pair of inner sides 2Q closest to the guide rail 81. Since the dimension W11 of the battery opening 11 is large, the worker WM can smoothly insert the battery 7 into the battery opening 11. For example, the worker WM can insert the battery 7 into the battery opening 11 while holding the side of the battery 7. Since the dimension W12 of the battery storage section 12 is small, the battery 7 can move in the battery storage section 12 while being guided by the inner side surface of the battery storage section 12 that is deeper than the inner plate 27 in the battery storage section 12 and the guide rail 81.

[0072] Furthermore, since the bottom plate 26 is provided, when the battery 7 is mounted in the battery mounting portion 8 or when the battery 7 is removed from the battery mounting portion 8, the battery 7 is prevented from falling out of the battery housing portion 12.

[0073] 3 and 6, the backpack type dust collector 1 is disposed in the battery storage section 12 and includes a moving mechanism 74 that generates a force to move the battery 7 to the battery opening 11. The moving mechanism 74 is disposed in a position where it can come into contact with the battery 7.

[0074] The moving mechanism 74 includes an elastic member 74E. An example of the elastic member 74E is a leaf spring. The elastic member 74E may include a coil spring.

[0075] The elastic member 74E is disposed so as to face the other end surface 7B of the battery 7 when the battery 7 is attached to the battery attachment portion 8. The elastic member 74E is provided on the facing surface 12A of the battery housing portion 12. When the battery 7 is attached to the battery attachment portion 8, the other end surface 7B of the battery 7 faces the facing surface 12A. When the battery 7 is attached to the battery attachment portion 8, the other end surface 7B of the battery 7 and the elastic member 74E come into contact with each other.

[0076] 13 is a diagram showing a schematic diagram of a state in which the battery 7 according to this embodiment is mounted in the battery mounting section 8. The guide rail 81 of the battery mounting section 8 inclines downward as it moves away from the battery opening 11 in the battery storage section 12. When the battery 7 is mounted in the battery mounting section 8, the other end surface 7B of the battery 7 comes into contact with the elastic member 74E. When the battery 7 is mounted in the battery mounting section 8, the elastic member 74E is elastically deformed by the battery 7. The elastically deformed elastic member 74E generates an elastic force that moves the battery 7 to the battery opening 11.

[0077] When removing the battery 7 from the battery mounting section 8, the worker WM operates the release button 73. By operating the release button 73, the battery 7 is released from the fixed state between the battery mounting section 8. By releasing the fixed state between the battery 7 and the battery mounting section 8, the battery 7 moves toward the battery opening 11 due to the elastic force generated by the elastic member 74E. Due to the elastic force generated by the elastic member 74E, at least a part of the battery 7 including the one end surface 7A protrudes from the battery opening 11 to the outside of the battery storage section 12. This allows the worker WM to hold the battery 7 smoothly. The worker WM can hold the battery 7 removed from the battery mounting section 8 and remove it from the battery storage section 12.

[0078] As described above, according to this embodiment, at least a portion of the battery opening 11 is provided on each of the left side surface 2E and the right side surface 2F of the housing 2. This allows the operator WM, while carrying the backpack type dust collector 1 on his / her back, to smoothly mount the battery 7 on the battery mounting portion 8 and remove the battery 7 from the battery mounting portion 8 by sliding the battery 7 in the left-right direction.

[0079] The battery opening 11 is disposed at the bottom of the housing 2. This allows the operator WM to smoothly mount the battery 7 to the battery mounting portion 8 and remove the battery 7 from the battery mounting portion 8 while carrying the backpack type dust collector 1 on his / her back.

[0080] A moving mechanism 74 is provided that generates a force for moving the battery 7 to the battery opening 11. As a result, by simply releasing the fixation between the battery 7 and the battery mounting section 8 with the release button 73, at least a part of the battery 7 can jump out to the outside of the battery opening 11 by the force generated by the moving mechanism 74. Therefore, the worker WM can smoothly perform the task of removing the battery 7 from the battery housing section 12.

[0081] [Second embodiment] In the following description, components that are the same as or equivalent to those in the above-described embodiment are given the same reference numerals, and descriptions thereof will be simplified or omitted.

[0082] Fig. 14 is a top view showing a schematic operation of mounting the battery 7 according to this embodiment. As shown in Fig. 14, the battery 7 may be mounted in the battery mounting section 8 so that the bottom surface 7C of the battery 7 faces forward.

[0083] [Third embodiment] 15 and 16 are top views each showing a schematic operation of mounting the battery 7 according to this embodiment. As shown in FIG. 15, a part of the battery opening 11 may be provided on the left side surface 2E, and a part of the battery opening 11 may be provided on the front surface 2A. Alternatively, a part of the battery opening 11 may be provided on the right side surface 2F, and a part of the battery opening 11 may be provided on the front surface 2A. The guide rail 81 of the battery mounting section 8 is inclined rearward as it is farther from the battery opening 11. The operator WM can easily mount the battery 7 in the battery mounting section 8 and remove it from the battery mounting section 8 while carrying the housing 2 on his / her back.

[0084] The guide rail 81 of the battery mounting section 8 may be inclined forward or backward as it moves away from the battery opening 11 in the battery housing section 12. As shown in Fig. 16, the inclination angle θ of the guide rail 81 with respect to the left-right axis LX is preferably not less than -45 degrees and not more than +45 degrees.

[0085] [Fourth embodiment] 17 and 18 are diagrams each showing a battery 7 and a battery mounting section 8 according to this embodiment. As shown in Fig. 17, a guide rail 81 of the battery mounting section 8 may be parallel to a horizontal plane. The guide rail 81 may be parallel to, for example, the lower surface 2D of the housing 2. As shown in Fig. 18, the guide rail 81 of the battery mounting section 8 may be inclined upward as it becomes farther away from the battery opening 11 in the battery storage section 12.

[0086] [Fifth embodiment] FIG. 19 is a diagram showing a schematic diagram of a moving mechanism 740 according to this embodiment. In the above-described embodiment, the elastic member 74E of the moving mechanism 74 is arranged so as to contact the battery 7. As shown in FIG. 19, the moving mechanism 740 may have an elastic member 74E that contacts the battery mounting section 8. The battery mounting section 8 is supported by at least a part of the housing 2 so as to be movable in the left-right direction. When the battery 7 is removed from the battery storage section 12, the battery mounting section 8 jumps out of the battery opening 11 together with the battery 7 due to an elastic force generated by the elastic member 74E.

[0087] [Sixth embodiment] Fig. 20 is a diagram showing a battery 7 and a battery mounting section 8 according to this embodiment. In the above-described embodiment, an opening 12K is provided in the lower part of the battery storage section 12. The lower part of the battery storage section 12 may be closed. As shown in Fig. 20, a closing plate 260 that defines the bottom surface of the battery storage section 12 may be provided in the housing 2. Also, the battery mounting section 8 may be disposed on the closing plate 260.

[0088] [Other embodiments] In the above-described embodiment, the moving mechanism 74 includes the elastic member 74E. The moving mechanism 74 may include an actuator that generates a driving force, such as an electric actuator or a hydraulic actuator. [Explanation of symbols]

[0089] 1... backpack type dust collector, 2... housing, 2A... front, 2B... rear, 2C... top, 2D... bottom, 2E... left side, 2F... right side, 2P... bottom, 2Q... inner surface, 3... suction port, 4... hose, 5... pipe, 6... nozzle, 7... battery (general-purpose battery), 7A... one end surface, 7B... other end surface, 8... battery mounting section, 9... operation device, 10A... shoulder belt, 10B... waist belt, 11... battery opening, 12... battery storage section, 12A... opposing surface, 13... dust collection chamber, 13W... partition wall, 14... flow path, 15... motor chamber, 15W... partition wall, 16... flow path, 16A... flow path, 16B... flow path, 16W... partition wall, 17... exhaust port, 18... dust collection pack, 19... filter, 20... base housing, 21... front housing, 22...rear housing, 23...plate, 23B...rear surface, 24...recess, 24A...inner surface, 25...screw boss, 26...bottom plate, 27...inner plate, 30...drive unit, 31...fan, 32...motor, 32S...output shaft, 33...fan cover, 34...motor case, 35...control board, 36...damper, 37...motor support, 38...support ring, 40...slit portion, 41...ventilation hole, 42...sound absorbing member, 43...rib, 50...vibration device, 51...support member, 51S...support surface, 52...elastic member, 53...operation member, 71...slide rail, 72...battery terminal, 73...release button, 74...movement mechanism, 74E...elastic member, 81...guide rail, 82...connection terminal, AX...rotating axis, WM...operator.

Claims

1. A suction port; a dust collection chamber connected to the suction port and accommodating a dust collection bag; a motor chamber connected to the dust collection chamber and accommodating a fan and a motor; A backpack-type dust collector having a housing having an exhaust port through which gas from the motor chamber is exhausted, The housing has a battery opening and a battery receiving portion. a battery mounting section disposed in the battery storage section, The housing includes a front housing, a rear housing connected to the front housing, and a plate connected to the front housing and facing a back of an operator, The front housing has a recess recessed rearward in a lower portion of the front housing, the plate is disposed so as to cover an opening of the recess; a portion of a flow passage connecting the motor chamber and the exhaust port is defined between the recess and the plate, At least a portion of the battery opening is provided on each of a left side surface and a right side surface of the housing, A backpack type dust collector, characterized in that the exhaust port is defined at a lower end of the flow path between an inner surface of the recess and a rear surface of the plate.

2. the battery mounting section has a guide rail for guiding a battery, 2. The backpack type dust collector according to claim 1, wherein the guide rail extends in the left-right direction.

3. A suction port; a dust collection chamber connected to the suction port and accommodating a dust collection bag; a motor chamber connected to the dust collection chamber and accommodating a fan and a motor; A backpack-type dust collector having a housing having an exhaust port through which gas from the motor chamber is exhausted, The housing has a battery opening and a battery receiving portion. a battery mounting section disposed in the battery storage section; a slit portion that is disposed in a flow path between the motor chamber and the exhaust port, the slit portion having a slit-shaped ventilation port through which gas from the motor chamber passes, and that divides the flow path into a first flow path close to the motor chamber and a second flow path close to the exhaust port, The housing includes a front housing, a rear housing connected to the front housing, and a plate connected to the front housing and facing a back of an operator, The front housing has a recess recessed rearward in a lower portion of the front housing, the plate is disposed so as to cover an opening of the recess; The first flow path is defined by a partition wall disposed around at least a portion of the periphery of the first flow path, and the second flow path is defined between the recess and the plate, the battery mounting section has a guide rail for guiding a battery, The guide rail is inclined forward or backward as it moves away from the battery opening, At least a portion of the battery opening is provided on each of a left side surface and a right side surface of the housing, and a dimension of the battery opening in a front-rear direction is larger than a dimension of the battery storage portion in which the guide rail is arranged in a front-rear direction, A backpack-type dust collector, characterized in that the exhaust port is a lower end of the second flow path and is provided on a lower surface of the housing below the battery storage section.

4. 4. The backpack type dust collector according to claim 3, wherein an inclination angle of the guide rail with respect to the left-right axis is between −45 degrees and +45 degrees.

5. A suction port; a dust collection chamber connected to the suction port and accommodating a dust collection bag; a motor chamber connected to the dust collection chamber and accommodating a fan and a motor; A backpack-type dust collector having a housing having an exhaust port through which gas from the motor chamber is exhausted, The housing has a battery opening and a battery receiving portion. a battery mounting section disposed in the battery storage section; a slit portion that is disposed in a flow path between the motor chamber and the exhaust port, the slit portion having a slit-shaped ventilation port through which gas from the motor chamber passes, and that divides the flow path into a first flow path close to the motor chamber and a second flow path close to the exhaust port, The housing includes a front housing, a rear housing connected to the front housing, and a plate connected to the front housing and facing a back of an operator, The front housing has a recess recessed rearward in a lower portion of the front housing, the plate is disposed so as to cover an opening of the recess; The first flow path is defined by a partition wall disposed around at least a portion of the periphery of the first flow path, and the second flow path is defined between the recess and the plate, the battery mounting section has a guide rail for guiding a battery, The guide rail is inclined upward or downward as it moves away from the battery opening, At least a portion of the battery opening is provided on each of a left side surface and a right side surface of the housing, and a dimension of the battery opening in a front-rear direction is larger than a dimension of the battery storage portion in which the guide rail is arranged in a front-rear direction, A backpack-type dust collector, characterized in that the exhaust port is a lower end of the second flow path and is provided on a lower surface of the housing below the battery storage section.

6. The backpack type dust collector according to any one of claims 1 to 5, wherein the battery opening is disposed in a lower portion of the housing.

7. 7. The backpack type dust collector according to claim 1, further comprising a moving mechanism disposed in the battery storage section and generating a force for moving the battery to the battery opening.

8. 8. The backpack type dust collector according to claim 7, wherein the moving mechanism is disposed at a position where it can come into contact with the battery.

9. 9. The backpack type dust collector according to claim 7 or 8, wherein the movement mechanism includes an elastic member.

10. 10. The backpack type dust collector according to claim 1, wherein the battery accommodated in the battery accommodating section is a battery for an electric tool.

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