Cleaner

Abstract

To provide a cleaner for facilitating exchange of a filter part.SOLUTION: A cleaner includes: a cleaner body which incorporates a suction source for generating suction force to suck dust and is equipped with a dust storage chamber to which air containing the dust is sucked by actuation of the suction source; a lid body for forming the dust storage chamber together with the cleaner body while being attached to the cleaner body; and a filter part arranged inside the dust storage chamber. The lid body is separable from the cleaner body. The filter part is attached to the lid body so as to allow the lid body to be exposed outward when detached from the cleaner body.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vacuum cleaner having a filter unit that traps dust. [Background technology]

[0002] Patent Document 1 discloses a vacuum cleaner 300 shown in Fig. 13. This vacuum cleaner 300 comprises a vacuum cleaner body 310 incorporating a suction source 311 that generates a suction force for sucking in dust, and a dust container 320 attached to the underside of the vacuum cleaner body 310. A connection pipe 324 protrudes forward from the front surface of the dust container 320, and the dust container 320 is connected to a suction pipe 330 via the connection pipe 324. A suction nozzle 340 is attached to the lower end of the suction pipe 330.

[0003] The suction nozzle 340 forms a suction space that opens downward to allow dust on the floor surface to be sucked up. The suction pipe 330 and the connection pipe 324 form a flow path that connects this suction space with the internal space of the dust storage container 320.

[0004] The suction pipe 330 has a base end pipe section 331 formed integrally with the vacuum cleaner body 310, and an extension pipe section 332 extending downward from the base end pipe section 331. The base end pipe section 331 is located in front of the dust storage container 320, and the connection pipe 324 is connected to the base end pipe section 331. The suction nozzle 340 is connected to the lower end of the extension pipe section 332.

[0005] When suction source 311 is activated, the suction force of suction source 311 acts on the suction space of suction nozzle 340 through dust container 320, connecting pipe 324, and suction pipe 330. As a result, dust on the floor surface is sucked up into the suction space of suction nozzle 340. Then, this dust flows into dust container 320 through suction pipe 330 and connecting pipe 324, and is stored in dust container 320.

[0006] In order to facilitate disposal of dust accumulated in the dust container 320, the dust container 320 is configured to be separable from the vacuum cleaner body 310 and the base end pipe portion 331. As shown in Fig. 14, the dust container 320 has a substantially rectangular box-shaped container body 322 that opens forward, and a lid 323 that closes the front opening of the container body 322. The lid 323 is connected to the top of the container body 322 and is rotatable up and down around the connection portion with the container body 322. The connection pipe 324 protrudes forward from the lid 323, and the base end of the connection pipe 324 forms a connection port 325 on the lid 323.

[0007] As shown in Fig. 14, a bag-shaped filter section 321 is housed in the dust storage container 320. The filter section 321 has a bag body 327 that captures dust contained in the air while allowing the air to pass through the filter section 321, and a fixed plate 328 in which an inlet 326 that allows the dust to flow from the connecting pipe 324 into the bag body 327 is formed. The inlet 326 opens toward the front. When the cover body 323 is rotated downward from the position shown in Fig. 14 to close the opening of the container body 322, the inlet 326 faces the connection port 325 in the front-rear direction.

[0008] Dust that has flowed into the connecting pipe 324 by the suction force of the suction source 311 flows into the bag body 327 through the connection port 325 and the inlet port 326. The bag body 327 allows the air that has flowed in together with the dust to pass through, but the dust is retained within the bag body 327. When the amount of dust that has accumulated in the bag body 327 increases, the suction force acting on the suction nozzle 340 decreases, so the user replaces the filter part 321 with a new filter part 321. At this time, the user separates the dust storage container 320 and the connecting pipe 324 from the vacuum cleaner body 310 and the suction pipe 330, and carries them near a dustbin. Then, the user opens the lid body 323 to expose the filter part 321 to the outside. In this state, the user can access the filter part 321 and can remove the filter part 321 from the dust storage container 320. After that, the user can attach the new filter part 321 to the dust storage container 320. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2023-55484 A Summary of the Invention [Problem to be solved by the invention]

[0010] Replacement of filter portion 321 is performed through the following steps, but it is desirable to be able to replace filter portion 321 with fewer steps. The dust container 320 is separated from the vacuum cleaner body 310 and the suction tube 330. The lid 323 of the dust container 320 is operated to open the inside of the dust container 320 . Remove the filter unit 321 from the dust container 320 and attach a new filter unit 321.

[0011] An object of the present disclosure is to provide a vacuum cleaner in which the filter portion can be easily replaced. [Means for solving the problem]

[0012] The vacuum cleaner of the present disclosure includes a vacuum cleaner body that includes a suction source that generates a suction force for sucking in dust and that forms a dust storage chamber into which air containing dust is sucked in by the operation of the suction source, a cover body that is attached to the vacuum cleaner body and forms the dust storage chamber together with the vacuum cleaner body, and a filter unit that is arranged in the dust storage chamber. The cover body is configured to be separable from the vacuum cleaner body. The filter unit is attached to the cover body so that the filter unit is exposed to the outside when the cover body is removed from the vacuum cleaner body. Effect of the Invention

[0013] The above described technique allows for easy replacement of the filter portion. [Brief description of the drawings]

[0014] [Figure 1]Perspective view of a vacuum cleaner in an upright position [Diagram 2] A perspective view of a vacuum cleaner in a backward tilted position [Diagram 3] FIG. 2 is a perspective view of a vacuum cleaner body forming a dust chamber of the vacuum cleaner; [Figure 4] Cross-section of the vacuum cleaner body [Diagram 5] A perspective view of a cover for closing a dust chamber of a vacuum cleaner. [Figure 6] Perspective view of the cover [Figure 7] FIG. 3 is a perspective view of a filter section accommodated in a dust storage chamber; [Figure 8] FIG. 13 is a perspective view of a fixing unit that fixes the filter unit to the lid body; [Figure 9] 1 is a cross-sectional view of a vacuum cleaner body when a suction source built into the vacuum cleaner body is stopped; [Figure 10] Cross-sectional view of the vacuum cleaner body when the suction source is operating [Figure 11] 1 is a cross-sectional view of a vacuum cleaner body with dust stored in the dust storage chamber; [Figure 12] Cross-section of the lid [Figure 13] A perspective view of a conventional vacuum cleaner [Figure 14] FIG. 1 is a perspective view of a vacuum cleaner body forming a dust storage chamber of a conventional vacuum cleaner; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of a vacuum cleaner will be described in detail with reference to the drawings. However, in order to facilitate understanding by those skilled in the art, for example, detailed description of already well-known matters or duplicate description of substantially the same configuration may be omitted. Note that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0016] Fig. 1 is a perspective view of a stick type vacuum cleaner 100. The vacuum cleaner 100 will be described with reference to Fig. 1.

[0017] (Overall structure of the vacuum cleaner) The vacuum cleaner 100 has a vacuum cleaner body 110 incorporating a suction source 111 that generates a suction force for sucking in dust, a suction tube 120 extending downward from the vacuum cleaner body 110, and a suction nozzle 130 attached to the lower end of the suction tube 120 and moving on the floor surface. The suction tube 120 and the vacuum cleaner body 110 shown in FIG. 1 are in an upright position relative to the suction nozzle 130.

[0018] A grip part 140 formed so as to be gripped by a user protrudes upward from the vacuum cleaner body 110, and an operating part 141 is provided on the outer surface of the grip part 140, which is operated by the user to activate or stop the suction source 111. When a user grips the grip part 140 and pulls it backward, the suction tube 120 and the vacuum cleaner body 110 tilt backward about the lower end of the suction tube 120 as an axis, and assume a backward tilted position relative to the suction nozzle 130 as shown in FIG.

[0019] As shown in Fig. 1, the suction source 111 is accommodated in the upper part of the vacuum cleaner body 110. A battery 112 that stores power for the suction source 111 is disposed behind the suction source 111. The suction source 111 and the battery 112 are arranged in the front-rear direction inside the vacuum cleaner body 110. When a user operates the operation unit 141 to activate the suction source 111, power is supplied from the battery 112 to the suction source 111, and the suction source 111 generates an upward suction force. The suction source 111 may be composed of a motor and a rotating blade configured to be rotationally driven by the motor to generate an upward airflow.

[0020] A dust storage chamber 113 into which dust-containing air is sucked by operation of the suction source 111 is formed below the suction source 111 and the battery 112. In detail, the front part of the dust storage chamber 113 is formed by the lower part of the vacuum cleaner body 110, and the rear part of the dust storage chamber 113 is formed by a lid body 114 attached to the lower part of the vacuum cleaner body 110 from the rear side. As shown in Fig. 2, the lid body 114 is configured to be removable from the vacuum cleaner body 110 in the rearward direction, and in this state, the front and rear parts of the dust storage chamber 113 are open to the outside.

[0021] As shown in FIG. 3, the front part of the dust chamber 113 on the side of the cleaner body 110 becomes gradually deeper toward the upper side. The front end of the dust chamber 113 is defined by the lower part of the front wall 115 of the cleaner body 110. The upper end of the dust chamber 113 is defined by a partition wall 116 protruding rearward from the front wall 115 so as to separate the dust chamber 113 from an upper space in which the suction source 111 and the battery 112 are housed. The left end of the dust chamber 113 is defined by a left partition wall 117 extending downward from the left end of the partition wall 116. The right end of the dust chamber 113 is defined by a right partition wall 118 extending downward from the right end of the partition wall 116. The lower end of the dust chamber 113 is defined by a lower wall 119 forming the lower end of the cleaner body 110.

[0022] The rear edges of the partition wall 116, the left partition wall 117, the right partition wall 118 and the lower wall 119 form an opening that opens rearward when the lid body 114 is removed from the vacuum cleaner body 110. A seal body 151 is attached to the rear edges of the partition wall 116, the left partition wall 117, the right partition wall 118 and the lower wall 119, and this seal body 151 is compressed by the lid body 114 when the lid body 114 is attached to the vacuum cleaner body 110. As a result, the vacuum cleaner body 110 and the lid body 114 are connected airtightly, and the inflow of air into the dust chamber 113 from the joint between the vacuum cleaner body 110 and the lid body 114 is suppressed.

[0023] Suction source 111 is disposed above the front portion of partition wall 116, and outlet 152 is formed in the front portion of partition wall 116 to allow air to flow from dust storage chamber 113 to suction source 111. As shown in FIG. 4, filter unit 155 is attached to outlet 152. Filter unit 155 is configured to capture dust contained in the air while allowing air to pass through. Therefore, dust flowing from dust storage chamber 113 to suction source 111 is reduced by filter unit 155.

[0024] A rear portion 153 of the partition wall 116 is inclined outward (upward), and the front portion of the dust chamber 113 formed by the vacuum cleaner body 110 becomes wider in the vertical direction toward the rear (i.e., toward the lid body 114).

[0025] 3, the left partition wall 117 and the right partition wall 118 protrude rearward from the front wall 115. The protruding height of the left partition wall 117 and the right partition wall 118 from the front wall 115 gradually decreases from the partition wall 116 toward the bottom wall 119. Therefore, on the cleaner body 110 side, the dust chamber 113 is deeper on the partition wall 116 side and shallower on the bottom wall 119 side.

[0026] An engagement claw 154 that engages with the lower end of lid body 114 protrudes from the lower surface of bottom wall 119. Lid body 114 is capable of tilting rearward about engagement claw 154 as an axis, as shown in Fig. 2. After tilting lid body 114 rearward, the user can remove lid body 114 from vacuum cleaner body 110 by pulling lid body 114 out of engagement claw 154.

[0027] 5, the cover 114 has an outer wall 160 having a concave cross section that opens forward (i.e., toward the cleaner body 110). The outer wall 160 has a rear wall 161 that forms the rear surface of the cleaner 100, a pair of clamping walls 162, 163 that protrude forward from the rear wall 161 with a gap between them in the left-right direction, and a bottom wall 164 that forms the bottom surface of the cover 114. The bottom wall 164 is provided with an engagement portion 165 that is configured to be able to engage with the engagement claw portion 154 of the cleaner body 110. Note that no wall is provided at the upper end of the outer wall 160, and the outer wall 160 opens not only forward but also upward.

[0028] The left-right interval between the sandwiching walls 162, 163 is set so as to allow the vacuum cleaner body 110 to be fitted between the sandwiching walls 162, 163 when the cover body 114 is attached to the vacuum cleaner body 110. In this state, the upper part of the left sandwiching wall 162 overlaps the left partition wall 117 of the vacuum cleaner body 110 from the outside, and the right sandwiching wall 163 overlaps the right partition wall 118 of the vacuum cleaner body 110 from the outside. In other words, the cover body 114 is attached to the vacuum cleaner body 110 in a state in which the vacuum cleaner body 110 is sandwiched between the sandwiching walls 162, 163 on the left and right. At this time, the sandwiching walls 162, 163 are in a state of being pressed against the left partition wall 117 and the right partition wall 118 with a certain amount of force, but this force does not have to be large enough to create an airtight seal structure between the sandwiching walls 162, 163, the left partition wall 117 and the right partition wall 118.

[0029] In order to prevent the user's hands from slipping on the outer surface of the lid body 114 when removing the lid body 114 from the vacuum cleaner body 110 and when attaching the lid body 114 to the vacuum cleaner body 110, anti-slip portions 166, 167 are formed on the outer surfaces of the clamping walls 162, 163. In this embodiment, the anti-slip portions 166, 167 are formed by ribs that protrude from the outer surfaces of the clamping walls 162, 163 and extend in the vertical direction.

[0030] In the space surrounded by the rear wall 161, the sandwiching walls 162, 163, and the lower wall 164, a sealing wall 171 and a tube holding portion 172 are provided, which protrude forward (i.e., toward the cleaner body 110) from the rear wall 161. The sealing wall 171 is provided to form the rear of the dust storage chamber 113 together with the rear wall 161. In detail, the sealing wall 171 is configured such that the front end of the sealing wall 171 compresses the sealing body 151 attached to the rear edges of the partition wall 116, the left partition wall 117, the right partition wall 118, and the lower wall 119 of the cleaner body 110 over the entire length. As a result, the cleaner body 110 and the lid body 114 are in airtight contact with each other, and the inflow of air into the dust storage chamber 113 from these joints is suppressed when the suction source 111 is operated.

[0031] Tube holding part 172 protrudes from rear wall 161 so as to separate the rear part of dust storage chamber 113, which is formed by sealing wall 171 and rear wall 161, into upper and lower parts. Tube holding part 172 is spaced leftward from the right part of sealing wall 171, and a fixing lever part 180 is disposed between the right part of sealing wall 171 and tube holding part 172 to fix filter part 173, which is configured to be able to store dust, to tube holding part 172.

[0032] Above pipe holding portion 172, the protruding height of sealing wall 171 from rear wall 161 is smaller than the protruding height of sandwiching walls 162, 163 from rear wall 161. In detail, the protruding height of sealing wall 171 gradually decreases going upward from pipe holding portion 172, and the protruding height of the upper end portion of sealing wall 171 is the smallest within sealing wall 171.

[0033] 6, filter portion 173 is housed in the space above tube holding portion 172. At this time, a part of filter portion 173 is surrounded in the circumferential direction by outer wall portion 160 of lid body 114 having a concave cross section. Therefore, after separating lid body 114 from vacuum cleaner body 110, if the user holds lid body 114 so that rear wall 161 faces downward, dust that has spilled down from filter portion 173 can remain on lid body 114.

[0034] The filter section 173 has a substantially rectangular fixed plate 174 disposed adjacent to the upper surface of the tube holding section 172, and a bag body 175 attached to the fixed plate 174. The bag body 175 is in a folded state in FIG. 6, but when dust flows into the bag body 175, it expands as shown in FIGS. 2 and 4. The bag body 175 is configured to allow air to pass through while capturing dust contained in the air. The dust is stored inside the bag body 175. For example, the bag body 175 can be formed from a fibrous material such as paper or nonwoven fabric.

[0035] Fixed plate 174 is made of a material having higher rigidity than bag body 175, and may be made of, for example, cardboard. Inlet 176 that allows dust to flow into bag body 175 is formed in approximately the center of fixed plate 174, as shown in Fig. 7. Inlet 176 opens downward when cover 114 is attached to vacuum cleaner body 110.

[0036] The fixed lever part 180 is attached to the cover body 114 in order to remove the filter part 173 from the cover body 114 after the cover body 114 is separated from the vacuum cleaner body 110. The fixed lever part 180 has an operating part 185 that the user presses leftward when removing the filter part 173 from the cover body 114, and the operating part 185 is rotatable leftward about a fixed shaft part 184 that fixes the fixed lever part 180 to the cover body 114. A fixed part 186 configured to hold the fixed plate 174 of the filter part 173 between the tube holding part 172 and the fixed part 186 is provided on the opposite side of the operating part 185 with respect to the fixed shaft part 184. The fixed part 186 is configured to separate from the tube holding part 172 when the user presses the operating part 185 leftward, thereby releasing the fixed plate 174 of the filter part 173 from between the tube holding part 172 and the fixed part 186.

[0037] 8, the fixed lever portion 180 further includes a front cylinder portion 181 to which the operating portion 185 is connected, a rear cylinder portion 182 arranged at a position spaced rearward from the front cylinder portion 181, and a torsion spring 183 arranged between the front cylinder portion 181 and the rear cylinder portion 182. The fixed shaft portion 184 shown in FIG. 5 is inserted through the front cylinder portion 181, the torsion spring 183, and the rear cylinder portion 182. The fixed shaft portion 184, the front cylinder portion 181, the torsion spring 183, and the rear cylinder portion 182 are arranged in the space below the tube holding portion 172.

[0038] As shown in Figs. 5 and 6, the front tube portion 181 is located forward of the front edge of the seal wall 171 forming the rear of the dust storage chamber 113 and the front edges of the sandwiching walls 162, 163 protruding from the outside of the seal wall 171. In other words, when the cover body 114 is removed from the vacuum cleaner body 110, the front tube portion 181 is in a position protruding from the space surrounded by the seal wall 171 and the space surrounded by the outer wall portion 160 of the cover body 114, and is exposed to the outside. At this time, the operating unit 185 connected to the front tube portion 181 is also in a position protruding from the space surrounded by the seal wall 171 and the space surrounded by the outer wall portion 160 of the cover body 114, and is exposed to the outside. Therefore, the user can operate the operating unit 185 without being hindered by the cover body 114.

[0039] The fixing part 186 has a connecting part 191 connected to the front cylinder part 181 and the rear cylinder part 182 and protruding into the space above the tube holding part 172, and a pressing part 187 bent leftward from the connecting part 191. The pressing part 187 is located above the fixing plate 174 of the tube holding part 172 and the filter part 173, and presses the right end part of the fixing plate 174 against the tube holding part 172 by the biasing force of the torsion spring 183. In other words, the right end part of the fixing plate 174 is sandwiched between the pressing part 187 and the tube holding part 172. The pressing part 187 is connected to the operating part 185 via the connecting part 191 and the front cylinder part 181, and can move integrally with the operating part 185. When the user presses the operating part 185 leftward, the pressing part 187 is displaced obliquely upward to the right. As a result, the fixing plate 174 is released from between the pressing portion 187 and the tube holding portion 172 .

[0040] As shown in Fig. 8, a push-out portion 188 protrudes from the outer circumferential surface of rear cylinder portion 182. Push-out portion 188 is provided to push out fixing plate 174 of filter portion 173 in a direction away from tube holding portion 172 when filter portion 173 is removed from lid body 114. To allow push-out portion 188 to protrude from rear cylinder portion 182 provided below tube holding portion 172 into the space above tube holding portion 172, an opening 189 is formed between tube holding portion 172 and rear wall 161 of lid body 114 as shown in Fig. 5.

[0041] Push-out part 188 is integrated with operating part 185 via rear cylinder part 182, connection part 191 of fixing part 186, and front cylinder part 181, and can move integrally with operating part 185. When the user pushes operating part 185 to the left, push-out part 188 protrudes into the space above tube holding part 172 through opening 189, and can push fixing plate 174 of filter part 173 upward and away from tube holding part 172.

[0042] A part of the suction tube 120 is accommodated in the space below the tube holding part 172, and the tube holding part 172 holds the base end 124 of the suction tube 120. When the filter part 173 is fixed to the tube holding part 172 by the fixing lever part 180, the base end 124 of the suction tube 120 faces the inlet 176 of the fixing plate 174 of the filter part 173. In this state, dust that has passed through the suction tube 120 is allowed to flow into the bag body 175 through the inlet 176 of the fixing plate 174 of the filter part 173.

[0043] The suction tube 120 forms a flow path extending from the base end 124 to the suction nozzle 130 shown in Fig. 1, and dust sucked in by the suction force of the suction source 111 flows through this flow path. In detail, the suction tube 120 has a base end tube section 121, an extension tube section 122 extending downward from the base end tube section 121, and a tip tube section 123 attached to the lower end of the extension tube section 122, as shown in Fig. 1.

[0044] As shown in Figures 4 and 5, the base end pipe section 121 has a second pipe section 126 that is fixed to the pipe holding section 172 and is housed in the space below the pipe holding section 172. The second pipe section 126 is formed of an elbow pipe. One end of the second pipe section 126 forms the base end 124 of the suction pipe 120, and the other end 128 of the second pipe section 126 opens to the vacuum cleaner body 110 side. A seal body 129 is attached to the end 128.

[0045] As shown in Figures 9 and 10, a check valve 190 is attached near the base end 124 of the second tube section 126. Figure 9 shows the check valve 190 when the suction source 111 is not operating, and this check valve 190 closes the flow path of the second tube section 126. On the other hand, Figure 10 shows the check valve 190 when the suction source 111 is operating, and this check valve 190 is curved upward by the upward suction force of the suction source 111 to open the flow path of the second tube section 126. At this time, a part of the check valve 190 enters the filter section 173 through the inlet 176 of the fixed plate 174.

[0046] As shown in Fig. 4, the base end pipe section 121 further has a first pipe section 125 formed integrally with the vacuum cleaner body 110. The lower end portion of the first pipe section 125 is formed so that the extension pipe section 122 shown in Fig. 1 can be inserted therein. As shown in Fig. 4, the upper end section 127 of the first pipe section 125 is bent toward the cover body 114, and the end face of the upper end section 127 is pressed against a seal body 129 attached to an end section 128 of the second pipe section 126. That is, the first pipe section 125 and the second pipe section 126 are connected to each other via the seal body 129, and the inflow of air from the joint between the first pipe section 125 and the second pipe section 126 is suppressed by the seal body 129.

[0047] The upper end of the extension tube 122 is removable from the first tube 125, and the tip tube 123 is removable from the lower end of the extension tube 122. The tip tube 123 is attached to the rear of the suction nozzle 130 so as to allow the suction tube 120 and the vacuum cleaner body 110 to move from the upright position shown in FIG. 1 to the backward tilted position shown in FIG. 2. Inside the suction nozzle 130, a suction space (not shown) communicating with the flow path of the suction tube 120 is formed, and this suction space opens downward to allow dust on the floor surface to flow in. The suction nozzle 130 has a width sufficient to keep the suction tube 120 and the vacuum cleaner body 110 in an upright position unless an external force is applied to the suction tube 120 and the vacuum cleaner body 110.

[0048] (Vacuum cleaner in action) The user grips the grip portion 140 and places the suction tube 120 and the vacuum cleaner body 110 in a backward tilted position as shown in FIG. 2. Then, the user operates the operating portion 141 to activate the suction source 111. This operation causes the suction source 111 to generate an upward suction force. The suction force of the suction source 111 acts on the check valve 190 through the bag body 175 of the filter portion 173, which is breathable. Then, the check valve 190 is curved upward as shown in FIG. 10. In this state, the internal space of the filter portion 173 communicates with the flow path of the suction tube 120. Since the flow path of the suction tube 120 communicates with the suction space of the suction nozzle 130, the internal space of the filter portion 173 also communicates with the suction space of the suction nozzle 130 through the flow path of the suction tube 120. Therefore, the suction force of the suction source 111 acts on the suction space of the suction nozzle 130 through the internal space of the filter portion 173 and the flow path of the suction tube 120.

[0049] The suction space of suction nozzle 130 opens downward. Therefore, when a user moves suction nozzle 130 forward on a floor surface, the opening of the suction space faces the floor surface, and dust on the floor surface is sucked up into the suction space of suction nozzle 130 by the upward suction force of suction source 111. This dust then flows through the flow path of suction tube 120 and into filter unit 173. Since bag body 175 of filter unit 173 is configured to be able to capture dust, this dust is stored in filter unit 173.

[0050] The internal pressure of dust chamber 113, which houses filter portion 173, becomes lower than the pressure around dust chamber 113 while suction source 111 is operating. Therefore, the air around dust chamber 113 tries to flow into dust chamber 113 through the joint between vacuum cleaner body 110 and lid body 114 which form dust chamber 113. However, since seal body 151 compressed by vacuum cleaner body 110 and lid body 114 is disposed at this joint, the inflow of air through this joint is suppressed.

[0051] Furthermore, the pressure inside the flow path of suction tube 120 also becomes lower than the pressure outside suction tube 120, and the air outside suction tube 120 tries to flow into the flow path of suction tube 120 through the joint between first tube section 125 and second tube section 126 of suction tube 120. However, since a seal body 129 compressed by first tube section 125 and second tube section 126 is disposed at this joint, the inflow of air through this joint is suppressed.

[0052] Since the inflow of air through the joint between the vacuum cleaner body 110 and the lid body 114 and the joint between the first tube part 125 and the second tube part 126 is suppressed, the decrease in suction force in the dust storage chamber 113 and the suction tube 120 is suppressed. Therefore, a suction force large enough to suck up dust on the floor surface can be applied to the suction space of the suction nozzle 130.

[0053] When the user finishes cleaning the desired floor area, he / she operates the operating unit 141 to stop the suction source 111. Then, the user places the suction tube 120 and the vacuum cleaner body 110 in an upright position as shown in FIG. 1. Since the width of the suction nozzle 130 is large, the vacuum cleaner 100 can be left on the floor with the suction tube 120 and the vacuum cleaner body 110 in an upright position. At this time, the inlet 176 of the filter unit 155 opens downward, but the base end 124 of the suction tube 120 facing the inlet 176 is closed by the check valve 190. Therefore, the check valve 190 prevents dust from falling from the filter unit 155.

[0054] When the user subsequently cleans another floor area, he or she tilts the suction tube 120 and the vacuum cleaner body 110 backward again. At this time, the corner formed by the rear wall 161 of the lid 114 and the tube holding part 172 is at the lowest position in the dust storage chamber 113. Therefore, dust in the filter part 173 accumulates on this corner as shown in FIG.

[0055] When the user operates the suction source 111 with the suction tube 120 and the vacuum cleaner body 110 in a backward tilted position, an airflow is generated in the dust storage chamber 113 from the base end 124 of the suction tube 120 toward the outlet 152, as shown by the arrow in FIG. 11. At this time, the dust accumulated in the corners is not affected by the airflow and is likely to remain accumulated in the corners. Therefore, the amount of dust flowing toward the outlet 152 on the airflow is reduced. As a result, the dust is prevented from being adsorbed on the inner surface of the bag body 175 of the filter part 173 so as to block the outlet 152. Therefore, the strength of the airflow from the base end 124 of the suction tube 120 toward the outlet 152 is likely to be maintained.

[0056] However, if a large amount of dust accumulates inside filter portion 173, the resistance caused by the dust increases, and the suction force acting on the suction space of suction nozzle 130 decreases. To solve this problem, filter portion 173 can be replaced with a new filter portion 173 as follows.

[0057] A user grasps the lid body 114 and pulls it backward in order to replace the filter portion 173. At this time, the anti-slip portions 166, 167 provided on the outer surface of the lid body 114 can prevent the user's hands from slipping on the lid body 114.

[0058] When the user pulls the lid body 114 rearward, the lid body 114 tilts rearward about the engagement portion 165 as shown in Fig. 2. As the lid body 114 tilts rearward, the second tube portion 126 on the lid body 114 side moves away from the first tube portion 125 on the vacuum cleaner body 110 side. Therefore, the user can tilt the lid body 114 rearward without being hindered by the suction tube 120.

[0059] At this time, end 128 of second tube 126 opens obliquely upward as lid 114 tilts backward. Therefore, even if dust remains inside second tube 126, the dust is unlikely to spill out from end 128. Even if dust does spill out from end 128, the dust can be received by bottom wall 164 or rear wall 161 of lid 114. Thereafter, the user can pull lid 114 obliquely upward and rearward to separate it from vacuum cleaner body 110.

[0060] In order to reduce the force required to pull the lid 114 backward from the vacuum cleaner body 110, the clamping walls 162, 163 of the lid 114 are configured not to clamp the vacuum cleaner body 110 with an excessively strong force. In this case, the clamping walls 162, 163 cannot come into airtight contact with the vacuum cleaner body 110. For this reason, a sealing wall 171 is provided between the clamping walls 162, 163, and the inflow of air into the dust chamber 113 from the joint between the vacuum cleaner body 110 and the lid 114 is suppressed by the sealing wall 171.

[0061] That is, if a seal structure is formed between the clamping walls 162, 163 and the vacuum cleaner body 110, the clamping walls 162, 163 are pressed against the vacuum cleaner body 110 with a force strong enough to prevent air from flowing in. In this case, the frictional force between the clamping walls 162, 163 and the vacuum cleaner body 110 may become excessively high, and the user must apply a strong force to the lid body 114 to remove the lid body 114 from the vacuum cleaner body 110.

[0062] On the other hand, if a seal structure is formed using a seal wall 171 provided separately from the clamping walls 162, 163 that clamp the vacuum cleaner body 110, the clamping walls 162, 163 do not need to be pressed against the vacuum cleaner body 110 with a strong force. Therefore, the clamping walls 162, 163 can be configured to lightly clamp the vacuum cleaner body 110, and the user can separate the lid body 114 from the vacuum cleaner body 110 with a small force.

[0063] When the cover 114 is separated from the vacuum cleaner body 110, the dust storage chamber 113 is opened to the outside, but the dust is retained within the bag 175 of the filter section 173. Therefore, scattering of dust when the cover 114 is separated from the vacuum cleaner body 110 is suppressed.

[0064] When the cover 114 is separated from the vacuum cleaner body 110, the upper end 127 of the first pipe portion 125 and the end 128 of the second pipe portion 126 are also opened to the outside as shown in Figs. 3 and 5. Therefore, the user can visually check whether dust is clogged in the first pipe portion 125 and the second pipe portion 126 through the upper end 127 of the first pipe portion 125 and the end 128 of the second pipe portion 126. If dust is clogged in the first pipe portion 125 and the second pipe portion 126, the user can remove the dust through the upper end 127 of the first pipe portion 125 and the end 128 of the second pipe portion 126.

[0065] Since the filter part 173 is fixed on the lid body 114 side by the fixed lever part 180 attached to the lid body 114, the filter part 173 and the fixed lever part 180 are removed from the vacuum cleaner body 110 together with the lid body 114. The user can then hold the lid body 114 so that the rear wall 161 of the lid body 114 faces downward and carry it to a trash can. At this time, the sealing wall 171 and the clamping walls 162, 163 of the lid body 114 are in a position in which they stand upward from the rear wall 161. Therefore, even if dust falls from the filter part 173, the dust can be retained on the lid body 114 by the sealing wall 171 and the clamping walls 162, 163.

[0066] The user can carry lid body 114 together with filter portion 173 close to the trash can, and then perform the task of separating filter portion 173 from lid body 114. In this task, the user operates operating portion 185 of fixed lever portion 180. At this time, since fixed lever portion 180 and filter portion 173 are separated from vacuum cleaner body 110, the task of removing filter portion 173 from lid body 114 is not hindered by vacuum cleaner body 110.

[0067] In addition, the cover 114 has a concave cross section and surrounds a part of the filter section 173 in the circumferential direction, but most of the filter section 173 is exposed to the outside when the cover 114 is separated from the vacuum cleaner body 110. In this state, the operation section 185 of the fixed lever section 180 is also exposed to the outside, so that the user can access the filter section 173 and the operation section 185 without being hindered by the cover 114.

[0068] When the user pushes operating portion 185 leftward against the biasing force of torsion spring 183, pressing portion 187 of fixed portion 186 of fixed lever portion 180 is displaced in a direction away from tube holding portion 172. As a result, the state in which fixed plate 174 of filter portion 173 is sandwiched between pressing portion 187 of fixed portion 186 and tube holding portion 172 is released.

[0069] In this state, when the user pulls bag body 175 of filter part 173 in a direction away from tube holding part 172, filter part 173 is removed from lid body 114. In this pulling direction, the amount of protrusion of seal wall 171 from rear wall 161 gradually decreases, and the amount of protrusion of seal wall 171 at a position facing tube holding part 172 is smallest. Therefore, the user can pull out filter part 173 in the direction away from tube holding part 172 without being hindered by seal wall 171. Furthermore, since outer wall part 160 of lid body 114 is open in this direction, the pulling out of filter part 173 is not hindered by outer wall part 160 either.

[0070] After the user pulls out filter portion 173 in this manner, check valve 190 closes base end 124 of second pipe portion 126. Therefore, even if dust remains in second pipe portion 126, check valve 190 prevents the dust from falling from base end 124 onto cover body 114 after filter portion 173 has been removed.

[0071] The filter part 173 can be easily pulled out not only in the direction away from the tube holding part 172, but also in the direction away from the rear wall 161 of the lid body 114. That is, when the user pushes the operating part 185 leftward, the pushing part 188 of the fixed lever part 180 pushes the fixed plate 174 of the filter part 173 through the opening 189 of the tube holding part 172, and the fixed plate 174 moves away from the tube holding part 172. At this time, in the pushing direction of the filter part 173 by the pushing part 188, the protruding amount of the sealing wall 171 from the rear wall 161 is small, so that the bag body 175 of the filter part 173 is easily run up onto the sealing wall 171. If the bag body 175 runs up onto the sealing wall 171, the bag body 175 is not compressed and deformed, and the fixed plate 174 is not pushed back by the restoring force of the bag body 175. That is, the gap between the fixed plate 174 and the tube holding part 172 is easily maintained.

[0072] A user can insert a fingertip into the gap between fixing plate 174 and tube holding part 172 to pinch fixing plate 174. Then, the user can move fixing plate 174 in a direction away from rear wall 161 of cover body 114, thereby separating filter part 173 from cover body 114. Note that the user may also pinch fixing plate 174 and pull filter part 173 out in a direction away from tube holding part 172.

[0073] If the user does not want to touch filter section 173, the user can hold cover 114 over the trash can with rear wall 161 of cover 114 facing upward while pressing operating section 185 to the left. In this case, filter section 173 falls into the trash can due to gravity.

[0074] When a user tries to discard the filter part 173 in this way, if the pushing part 188 does not push the fixing plate 174 of the filter part 173 in a direction away from the tube holding part 172, the following problem may occur. That is, when the suction source 111 generates a suction force, the check valve 190 enters the filter part 173 as shown in FIG. 10. Then, when the suction source 111 stops, the check valve 190 returns to the position shown in FIG. 9. As a result of the repeated change in position shown in FIG. 9 and FIG. 10, it is assumed that the check valve 190 is plastically deformed, and even when the suction source 111 stops, a part of the check valve 190 remains in the filter part 173. In this state, if the filter part 173 is displaced in a direction away from the rear wall 161 of the cover body 114 while sliding against the tube holding part 172, the fixing plate 174 of the filter part 173 may get caught by the check valve 190 and damage the check valve 190.

[0075] On the other hand, if the pushing portion 188 pushes out the fixed plate 174 in a direction away from the tube holding portion 172, the check valve 190, which has been plastically deformed as described above, can come out of the filter portion 173. In this state, the fixed plate 174 does not get caught on the check valve 190, and the filter portion 173 can fall out of the cover 114. Therefore, damage to the check valve 190 when the filter portion 173 is replaced is suppressed.

[0076] The protruding height of the sealing wall 171 from the rear wall 161 is set so that the filter portion 173 can easily fall from the lid body 114. That is, in the portion adjacent to the filter portion 173, the protruding height of the sealing wall 171 from the rear wall 161 is smaller than the protruding height of the sandwiching walls 162, 163 from the rear wall 161. Since the protruding height of the sealing wall 171 is relatively small, the contact area between the filter portion 173 and the sealing wall 171 is small. As a result, the frictional force resisting the fall of the filter portion 173 from the lid body 114 is not excessively large, and the filter portion 173 can easily fall from the lid body 114.

[0077] In order to further reduce the frictional force between the filter section 173 and the sealing wall 171, the sealing wall 171 may protrude from the rear wall 161 of the lid body 114 in an outwardly inclined position. In this case, when the lid body 114 is attached to the vacuum cleaner body 110, the rear part of the dust storage chamber 113 has a shape that expands in the vertical direction and / or the horizontal direction as it approaches the vacuum cleaner body 110. When a user separates the lid body 114 from the vacuum cleaner body 110 and holds the lid body 114 in a position in which the rear part of the dust storage chamber 113 opens downward, the rear part of the dust storage chamber 113 becomes wider as it approaches downward, and the filter section 173 may easily fall off the lid body 114. The sealing wall 171 may be inclined outward over its entire length, but for example, as shown in FIG. 12, only the upper end of the sealing wall 171 when the lid body 114 is attached to the vacuum cleaner body 110 may be inclined outward.

[0078] After separating the used filter unit 173 from the lid body 114, the user attaches a new filter unit 173 to the lid body 114. That is, the user pushes the operating unit 185 of the fixing lever part 180 leftward again to separate the fixing part 186 from the tube holding part 172. Then, the fixing plate 174 of the filter unit 173 is inserted into the gap between the fixing part 186 and the tube holding part 172. When the user releases the operating unit 185 in this state, the fixing part 186 approaches the tube holding part 172 due to the biasing force of the torsion spring 183, and the fixing plate 174 is sandwiched between the fixing part 186 and the tube holding part 172. As a result, the new filter unit 173 is fixed to the lid body 114.

[0079] Thereafter, the user tilts the lid body 114 backward, and engages the engagement portion 165 of the lid body 114 with the engagement claw portion 154 of the vacuum cleaner body 110. Then, when the user rotates the lid body 114 toward the vacuum cleaner body 110 around the engagement portion 165 as an axis, the vacuum cleaner body 110 fits between the clamping walls 162, 163 of the lid body 114.

[0080] The vacuum cleaner body 110 is configured to prevent the filter section 173 from getting caught on the vacuum cleaner body 110 during such an installation operation. That is, the rear section 153 of the partition wall 116 of the vacuum cleaner body 110 is inclined as shown in Figures 3 and 4, and the front section of the dust chamber 113 formed by the vacuum cleaner body 110 becomes wider as it approaches the lid body 114. This can prevent the filter section 173 from getting caught at the front entrance of the dust chamber 113.

[0081] In the above-described embodiment, the filter portion 173 has a bag shape. Alternatively, the filter portion 173 may be a plate-shaped filter component.

[0082] In the above-described embodiment, the lid body 114 is sandwiched between the vacuum cleaner body 110 by the sandwiching walls 162, 163, and the lid body 114 is prevented from unintentionally falling off the vacuum cleaner body 110 when the lid body 114 is attached to the vacuum cleaner body 110. Alternatively, the lid body 114 may be prevented from falling off the vacuum cleaner body 110 by other methods. For example, if the vacuum cleaner body 110 and the lid body 114 are configured to be magnetically attracted to each other, the lid body 114 is less likely to fall off the vacuum cleaner body 110 unintentionally. In this case, the lid body 114 may not have the sandwiching walls 162, 163. If the lid body 114 is not provided with the sandwiching walls 162, 163, the lid body 114 may have a flat plate shape.

[0083] In the above-described embodiment, the anti-slip portions 166, 167 are configured by ribs protruding from the outer wall portion 160 of the lid body 114. Alternatively, the anti-slip portions 166, 167 may have other shapes capable of preventing the user's hand from slipping on the lid body 114. For example, the anti-slip portions 166, 167 may be configured by a plurality of protrusions provided on the outer wall portion 160 of the lid body 114. Alternatively, the anti-slip portions 166, 167 may be rubber plates attached on the outer wall portion 160 of the lid body 114. Note that, when the outer surface of the lid body 114 itself has a high coefficient of friction with respect to the user's hand, the anti-slip portions 166, 167 may be omitted.

[0084] In the above-described embodiment, the front part of the dust chamber 113 formed by the vacuum cleaner body 110 becomes wider in the vertical direction as it approaches the lid body 114 attached to the vacuum cleaner body 110 due to the inclination of the partition wall 116. Alternatively, the vacuum cleaner body 110 may be configured such that the front part of the dust chamber 113 becomes wider in the horizontal direction as it approaches the lid body 114.

[0085] In the embodiment described above, the cover 114 is removed rearward from the cleaner body 110. Alternatively, the cleaner 100 may be configured such that the cover 114 is removed forwards, to the right or to the left from the cleaner body 110.

[0086] In the above embodiment, the vacuum cleaner 100 is a stick type. Alternatively, the vacuum cleaner 100 may be a self-propelled vacuum cleaner (a so-called robot vacuum cleaner), a canister type vacuum cleaner, or a handheld type vacuum cleaner.

[0087] (Effects, etc.) The vacuum cleaner 100 according to the above embodiment has the following characteristics and provides the following effects.

[0088] A vacuum cleaner according to one aspect of the above-described embodiment includes a vacuum cleaner body that includes a suction source that generates a suction force for sucking in dust and forms a dust storage chamber into which air containing dust is sucked in by the operation of the suction source, a cover body that is attached to the vacuum cleaner body and forms the dust storage chamber together with the vacuum cleaner body, and a filter unit that is arranged in the dust storage chamber. The cover body is configured to be separable from the vacuum cleaner body. The filter unit is attached to the cover body so that the filter unit is exposed to the outside when the cover body is removed from the vacuum cleaner body.

[0089] In the above-mentioned configuration, when the suction source is operated, dust flows into the dust storage chamber formed by the vacuum cleaner body and the lid. The filter unit captures the dust in the dust storage chamber, and the dust is stored in the dust storage chamber. When it becomes necessary to replace the filter unit, the user only needs to separate the lid from the vacuum cleaner body. That is, since the filter unit is attached to the lid, the filter unit can be removed from the vacuum cleaner body by the user separating the lid from the vacuum cleaner body. In this operation, the opening of the internal space of the dust storage chamber and the removal of the filter unit from the dust storage chamber are performed in one work process, so that the replacement of the filter unit is easy. In addition, when the lid is removed from the vacuum cleaner body, the filter unit is exposed to the outside. Therefore, the user can access the filter unit simply by separating the lid from the vacuum cleaner body. Therefore, the user can easily replace the filter unit with a new filter unit.

[0090] In the above-described configuration, the filter portion may include a bag formed so as to be capable of storing dust therein.

[0091] In the above-described configuration, the filter portion can retain dust within the filter portion, which prevents dust from scattering when the lid body is removed from the vacuum cleaner body.

[0092] In the above-mentioned configuration, the vacuum cleaner may further include an anti-slip portion provided on the outer surface of the lid body to prevent a hand from slipping on the lid body when removing the lid body from the vacuum cleaner body.

[0093] In the above-described configuration, the non-slip portion is provided on the outer surface of the lid, which prevents the user's hand from slipping on the lid when removing the lid from the vacuum cleaner body, allowing the user to easily remove the lid from the vacuum cleaner body.

[0094] In the above-mentioned configuration, the dust chamber may be formed so that, when the lid is attached to the vacuum cleaner body, it becomes wider in the vertical or horizontal direction as it approaches the lid from the vacuum cleaner body.

[0095] In the above-described configuration, the dust chamber becomes wider in the vertical or horizontal directions as it approaches the lid body from the vacuum cleaner body, so that when the user attaches the lid body to the vacuum cleaner body with the filter part attached to the lid body, the filter part is prevented from getting caught on the vacuum cleaner body.

[0096] In the above-mentioned configuration, the cover may circumferentially surround a portion of the filter portion and have a concave cross section that is open towards the vacuum cleaner body.

[0097] In the above-mentioned configuration, even after the lid body is removed from the vacuum cleaner body, the lid body surrounds a part of the filter unit in the circumferential direction. Therefore, if a user holds the lid body with the opening of the lid body facing upward, dust that has fallen from the filter unit can be collected on the lid body. The user can then discard the dust that has fallen onto the filter unit and the lid body, and attach a new filter unit to the lid body. The user can attach the lid body to the vacuum cleaner body with the opening of the lid body to which the new filter unit is attached facing the vacuum cleaner body, and store the new filter unit in the dust storage chamber while forming the dust storage chamber.

[0098] In the above-mentioned configuration, the cover may have a pair of clamping walls that are provided at positions spaced apart from each other and that clamp the cleaner body.

[0099] In the above-mentioned configuration, when attaching the lid body to the vacuum cleaner body, the user can fit the vacuum cleaner body between the pair of clamping walls. Since the vacuum cleaner body is sandwiched between the pair of clamping walls, the lid body can be prevented from falling off the vacuum cleaner body during the work of attaching the lid body to the vacuum cleaner body.

[0100] In the above-mentioned configuration, the vacuum cleaner may further include a suction pipe forming a flow path through which dust sucked by the suction force of the suction source flows into the dust chamber. The cover body may have a sealing wall protruding toward the vacuum cleaner body between the pair of clamping walls when attached to the vacuum cleaner body. The sealing wall may be configured to abut airtightly against the vacuum cleaner body when fitted between the pair of clamping walls, thereby suppressing air from flowing into the dust chamber through a joint between the vacuum cleaner body and the cover body.

[0101] When outside air flows into the dust chamber from a portion other than the suction tube, the suction force acting on the suction tube decreases. For this reason, it is preferable to form a seal structure to prevent such inflow of outside air. The inflow of outside air can be suppressed by pressing the clamping wall against the outer surface of the vacuum cleaner body with a strong force, but in this case, the frictional force between the clamping wall and the outer surface of the vacuum cleaner body when the vacuum cleaner body is fitted between the pair of clamping walls may become excessively high. In order to prevent such an excessive increase in frictional force, in the above-mentioned configuration, the lid body has a seal wall separate from the pair of clamping walls. This seal wall is configured to suppress the inflow of air into the dust chamber from the joint between the vacuum cleaner body and the lid body by abutting airtightly against the vacuum cleaner body in a state where it is fitted between the pair of clamping walls. In this case, the pair of clamping walls do not need to be pressed against the vacuum cleaner body with a force strong enough to prevent the inflow of air.

[0102] In the above-described configuration, the sealing wall may be formed so that a protruding height at a portion adjacent to the filter portion is smaller than a protruding height of the pair of sandwiching walls.

[0103] In the above-mentioned configuration, since the filter part is attached to the lid body, it can come into contact with the sealing wall of the lid body even after the lid body is removed from the vacuum cleaner body. Since the protruding height of the sealing wall at the portion adjacent to the filter part is relatively small, the contact area between the filter part and the sealing wall, and therefore the frictional force between them, is not excessively large. Therefore, the user can easily separate the filter part from the lid body.

[0104] In the above-described configuration, the portion of the dust chamber formed by the sealing wall may be wider in the vertical or horizontal directions as it approaches the vacuum cleaner body to which the lid is attached, by inclining the sealing wall.

[0105] In the above-mentioned configuration, the sealing wall forms a part of the dust storage chamber when the lid is attached to the vacuum cleaner body. When a user removes the lid from the vacuum cleaner body to discard the filter unit and holds the lid in a position in which the sealing wall protrudes downward, the space formed by the sealing wall (i.e., the part of the dust storage chamber) becomes wider toward the bottom. Therefore, the filter unit is less likely to get caught on the sealing wall when it falls from the lid. [Industrial Applicability]

[0106] The vacuum cleaner of the above-described embodiment is suitably used as a device for cleaning work. [Explanation of symbols]

[0107] 100·········vacuum cleaner 110 Vacuum cleaner body 111...Suction source 113························dust storage room 114 Lid body 120...Suction tube 127...Top end 128...End 130 Suction nozzle 152... Outlet 162,163...Pinching wall 166,167·······Slip-resistant part 171 Seal wall 173 Filter section 175...Bag body

Claims

1. a vacuum cleaner body incorporating a suction source that generates a suction force for sucking in dust and forming a dust storage chamber into which air containing dust is sucked by the operation of the suction source; a cover body attached to the vacuum cleaner body and forming the dust chamber together with the vacuum cleaner body; A filter unit disposed in the dust storage chamber, The cover is configured to be separable from the vacuum cleaner body, The filter portion is attached to the cover body so as to be exposed to the outside when the cover body is removed from the vacuum cleaner body.

2. The vacuum cleaner according to claim 1 , wherein the filter portion includes a bag body formed so as to be capable of storing dust therein.

3. 3. The vacuum cleaner according to claim 1, further comprising an anti-slip portion provided on an outer surface of the lid body to prevent a hand from slipping on the lid body when removing the lid body from the vacuum cleaner body.

4. 3. The vacuum cleaner according to claim 1, wherein the dust chamber is formed so as to become wider in the vertical or horizontal direction as it approaches the lid from the vacuum cleaner body when the lid is attached to the vacuum cleaner body.

5. The vacuum cleaner according to claim 1 or 2, wherein the cover circumferentially surrounds a portion of the filter portion and has a concave cross section that opens toward the vacuum cleaner body.

6. The vacuum cleaner according to claim 5 , wherein the cover body has a pair of clamping walls that are spaced apart from each other and that clamp the vacuum cleaner body.

7. The dust collector further includes a suction pipe that forms a flow path through which the dust sucked by the suction force of the suction source flows into the dust storage chamber, the cover body has a sealing wall protruding toward the vacuum cleaner body between the pair of clamping walls when attached to the vacuum cleaner body, The vacuum cleaner according to claim 6, wherein the sealing wall is configured to abut airtightly against the vacuum cleaner body when fitted between the pair of clamping walls, thereby preventing air from flowing into the dust chamber through a joint between the vacuum cleaner body and the lid body.

8. The vacuum cleaner according to claim 7 , wherein the sealing wall is formed so that a protruding height at a portion adjacent to the filter portion is smaller than a protruding height of the pair of sandwiching walls.

9. The vacuum cleaner according to claim 7, wherein the portion of the dust chamber formed by the sealing wall is wider in the vertical or horizontal direction as it approaches the vacuum cleaner body to which the lid body is attached, due to the sealing wall being inclined.

Images