Dust collector

Abstract

The vacuum cleaner according to the present disclosure comprises: a vacuum cleaner body having a built-in suction source for generating a suction force for sucking dust, and having a dust storage chamber formed therein for sucking air containing dust on the basis of the operation of the suction source; the cover body is arranged on the dust collector main body in a manner of opening and closing the dust storage chamber; a suction pipe in which a flow path through which the dust sucked by the suction force of the suction source flows to the dust storage chamber is formed; a bag-shaped filter unit disposed in the dust storage chamber so as to collect and store the dust that has passed through the suction pipe; a check valve for preventing dust from flowing back to the suction pipe from the filtering part; an operation part which is operated in order to detach the filter part in a state where the dust storage chamber is opened; and a pushing-out part which pushes out the filter part in the direction away from the check valve on the basis of the operation of the operation part. Therefore, the check valve can be prevented from being damaged by the filtering part when the filtering part is replaced.

Description

Technical Field

[0001] The present invention relates to a vacuum cleaner having a filter portion for collecting dust. Background Art

[0002] Patent document 1 (Japanese Patent Publication No. 2016-42898) discloses Fig.14 The vacuum cleaner 300 shown in FIG. 3 includes: a vacuum cleaner body 310; a suction pipe 320 extending forward from the vacuum cleaner body 310; and a suction nozzle 330 installed at the distal end of the suction pipe 320. The vacuum cleaner body 310 includes a frame 311 and a suction source 312 disposed at the rear of the internal space of the frame 311. Fig.15 As shown, a bag-shaped filter portion 313 is disposed on the front side of the suction source 312 , and an installation port 321 for inserting the base end portion of the suction tube 320 is formed on the front side of the filter portion 313 .

[0003] When the suction pipe 320 is inserted into the mounting opening 321, the flow passage of the suction pipe 320 is connected to the internal space of the filter 313, thereby allowing dust passing through the suction pipe 320 to flow into the filter 313. However, it is expected that part of the dust will flow to the outside of the filter 313. In order to suppress such dust flow, an annular seal 322 is installed at a position facing the filter 313 in the mounting opening 321.

[0004] In order to be able to replace the filter unit 313, as Fig.16 As shown in FIG. 1 , a take-out port 314 is formed at the front of the frame 311 . The take-out port 314 is opened and closed by a cover 315 installed at the upper portion of the frame 311 .

[0005] When replacing the filter 313, the user rotates the cover 315 upward to open the removal port 314. Then, the user grasps the filter 313 and pulls it upward. At this time, it is expected that the filter 313 will rub against the seal 322, and the filter 313 will damage the seal 322. In this case, the sealing function of the seal 322 may be reduced after the filter 313 is replaced.

[0006] Although the vacuum cleaner 300 has the seal 322, a check valve may be provided at the mounting port 321 to prevent dust from flowing back from the filter 313 to the suction pipe 320. In this case, it is also expected that the filter 313 may damage the check valve during the replacement operation of the filter 313. Summary of the invention

[0007] An object of the present disclosure is to provide a vacuum cleaner capable of preventing a filter from damaging a check valve or a seal during replacement of the filter.

[0008] The vacuum cleaner disclosed herein includes: a vacuum cleaner body, which has a suction source for generating a suction force for sucking in dust, and forms a dust storage chamber through which air containing dust is sucked in based on the operation of the suction source; a cover body, which is mounted on the vacuum cleaner body in a manner capable of opening and closing the dust storage chamber; a suction pipe, which forms a flow channel through which dust sucked in based on the suction force of the suction source flows to the dust storage chamber; a bag-shaped filter portion, which is arranged in the dust storage chamber in a manner to capture and store dust that has passed through the suction pipe; a check valve or a sealing member, the check valve preventing dust from flowing back from the filter portion to the suction pipe, and the sealing member preventing air and dust from flowing from the suction pipe to the outside of the filter portion; an operating portion, which is operated in order to remove the filter portion when the dust storage chamber is opened; and a pushing portion, which pushes the filter portion in a direction away from the check valve or the sealing member based on the operation of the operating portion.

[0009] The above-mentioned technology can prevent the filter from damaging the check valve or the seal during the replacement operation of the filter.

[0010] The objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of a vacuum cleaner in an upright position.

[0012] Figure 2 It is a perspective view of the vacuum cleaner in a backward-leaning posture.

[0013] Figure 3 It is a perspective view of a vacuum cleaner main body forming a dust storage chamber of the vacuum cleaner.

[0014] Figure 4 It is a cross-sectional view of the vacuum cleaner body.

[0015] Figure 5 It is a perspective view of a cover for closing a dust storage chamber of a vacuum cleaner.

[0016] Figure 6 It is a three-dimensional diagram of the cover.

[0017] Figure 7 This is a perspective view of the filter unit housed in the dust storage chamber.

[0018] Figure 8 This is a perspective view of a fixing unit that fixes the filter unit to the cover body.

[0019] Fig. 9 This is a cross-sectional view of the vacuum cleaner body when a suction source built in the vacuum cleaner body is stopped.

[0020] Fig.10 This is a cross-sectional view of the vacuum cleaner body when the suction source built into the vacuum cleaner body is operating.

[0021] Fig.11 It is a cross-sectional view of the vacuum cleaner body in a state where dust is stored in the dust storage chamber.

[0022] Fig.12 It is a cross-sectional view of the cover body.

[0023] Fig.13 It is a three-dimensional view of the cover body with the seal installed.

[0024] Fig.14 It is a perspective view of a conventional vacuum cleaner.

[0025] Fig.15 It is a cross-sectional view of a vacuum cleaner main body forming a dust storage chamber of a conventional vacuum cleaner.

[0026] Fig.16 It is a perspective view of a conventional vacuum cleaner main body with the dust storage chamber opened. DETAILED DESCRIPTION

[0027] Hereinafter, the embodiments of the vacuum cleaner will be described in detail with reference to the accompanying drawings. However, in order to facilitate the understanding of those skilled in the art, for example, the detailed description of already well-known matters or the repeated description of substantially the same structure may be omitted. In addition, 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.

[0028] Figure 1 1 is a perspective view of a stick vacuum cleaner 100. Figure 1 The vacuum cleaner 100 will be described.

[0029] (Overall structure of the vacuum cleaner)

[0030] The vacuum cleaner 100 comprises: a vacuum cleaner body 110 having a suction source 111 built therein for generating a suction force for sucking dust; a suction pipe 120 extending downward from the vacuum cleaner body 110; and a suction nozzle 130 mounted at the lower end of the suction pipe 120 and movable on the ground. Figure 1 The suction pipe 120 and the cleaner body 110 are shown in an upright position relative to the suction nozzle 130 .

[0031] The grip portion 140 is formed so that the user can hold it and protrudes upward from the vacuum cleaner body 110. An operation portion 141 operated by the user to start or stop the suction source 111 is provided on the outer side of the grip portion 140. When the user holds and pulls the grip portion 140 backward, the suction pipe 120 and the vacuum cleaner body 110 tilt backward with the lower end of the suction pipe 120 as the axis, so that Figure 2 As shown in the figure, it is in a backward-inclined posture with respect to the suction nozzle 130.

[0032] like Figure 1 As shown, the suction source 111 is accommodated in the upper part of the vacuum cleaner body 110. The battery 112 storing electricity for the suction source 111 is arranged on the rear side of the suction source 111. The suction source 111 and the battery 112 are arranged in the front-to-back direction in the vacuum cleaner body 110. When the user operates the operating part 141 in order to operate the suction source 111, electricity 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 can be composed of a motor and a rotating blade, and the rotating blade is configured to generate an upward airflow based on being driven to rotate by the motor.

[0033] The dust storage chamber 113 is formed below the suction source 111 and the battery 112, and the air containing dust is sucked into the dust storage chamber 113 based on the operation of the suction source 111. Specifically, the front portion of the dust storage chamber 113 is formed by the lower portion of the cleaner body 110, and the rear portion of the dust storage chamber 113 is formed by a cover 114 installed at the lower portion of the cleaner body 110 from the rear side. Figure 2 As shown, the cover 114 is configured to be removable from the cleaner body 110 toward the rear, and in this state, the front and rear portions of the dust storage chamber 113 are open to the outside.

[0034] like Figure 3 As shown, the front part of the dust storage chamber 113 on the side of the vacuum cleaner body 110 gradually becomes deeper as it goes to the upper side (that is, the length of the front part of the dust storage chamber 113 becomes longer). The front end of the dust storage chamber 113 is divided by the lower part of the front wall 115 of the vacuum cleaner body 110. The upper end of the dust storage chamber 113 is divided by a partition wall 116 protruding backward from the front wall 115 to separate the dust storage chamber 113 from the upper space where the suction source 111 and the battery 112 are accommodated. The left end of the dust storage chamber 113 is divided by a left partition wall 117 extending downward from the left end of the partition wall 116. The right end of the dust storage chamber 113 is divided by a right partition wall 118 extending downward from the right end of the partition wall 116. The lower end of the dust storage chamber 113 is divided by a lower wall 119 forming the lower end of the vacuum cleaner body 110.

[0035] 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, which opens to the rear when the cover 114 is removed from the cleaner body 110. A sealing body 151 is installed at the rear edges of the partition wall 116, the left partition wall 117, the right partition wall 118, and the lower wall 119, and the sealing body 151 is compressed by the cover 114 when the cover 114 is installed on the cleaner body 110. As a result, the cleaner body 110 and the cover 114 are airtightly connected, thereby preventing air from flowing into the dust storage chamber 113 from the joint between the cleaner body 110 and the cover 114.

[0036] like Figure 4As shown, the suction source 111 is arranged on the upper side of the front part of the partition wall 116, and an outlet 152 is formed at the front part of the partition wall 116 to allow air to flow out from the dust storage chamber 113 to the suction source 111. A filter 155 is installed at the outlet 152. The filter 155 is configured to allow air to pass through while capturing dust contained in the air. Therefore, the dust flowing from the dust storage chamber 113 to the suction source 111 is reduced based on the filter 155.

[0037] The rear portion 153 of the partition wall 116 is inclined outward (upward), and the front portion of the dust storage chamber 113 formed by the cleaner body 110 becomes wider in the vertical direction toward the rear (that is, toward the cover 114 ).

[0038] like Figure 3 As shown, the left partition wall 117 and the right partition wall 118 protrude backward from the front wall 115. The heights of the left partition wall 117 and the right partition wall 118 protruding from the front wall 115 (that is, the protruding heights of the left partition wall 117 and the right partition wall 118 from the front wall 115) gradually decrease as they go from the partition wall 116 to the lower wall 119. Therefore, the dust storage chamber 113 is deeper on the partition wall 116 side and shallower on the lower wall 119 side on the cleaner body 110 side.

[0039] The engaging claw portion 154 engaged with the lower end of the cover body 114 protrudes from the lower side surface of the lower wall 119. Figure 2 As shown, the cover 114 can be tilted backward with the engaging claw 154 as an axis. After tilting the cover 114 backward, the user can remove the cover 114 from the cleaner body 110 by pulling the cover 114 out from the engaging claw 154.

[0040] like Figure 5 As shown, the cover 114 has an outer wall portion 160, which has a concave cross-section that opens to the front (that is, the side of the vacuum cleaner body 110). The outer wall portion 160 has: a rear wall 161 that forms the rear side of the vacuum cleaner 100; a pair of clamping walls 162 and 163 that are spaced apart from each other in the left-right direction and protrude forward from the rear wall 161; and a lower wall 164 that forms the lower side of the cover 114. The lower wall 164 is provided with an engaging portion 165 that is configured to engage with the engaging claw portion 154 of the vacuum cleaner body 110. In addition, no wall portion is provided at the upper end of the outer wall portion 160, and the outer wall portion 160 is opened not only to the front but also to the upper side.

[0041] The left and right intervals of the clamping walls 162 and 163 are set to allow the vacuum cleaner body 110 to be inserted between the clamping walls 162 and 163 when the cover 114 is mounted on the vacuum cleaner body 110. In this state, the upper part of the clamping wall 162 on the left side overlaps the left partition wall 117 of the vacuum cleaner body 110 from the outside, and the clamping wall 163 on the right side overlaps the right partition wall 118 of the vacuum cleaner body 110 from the outside. In other words, the cover 114 is mounted on the vacuum cleaner body 110 in a state where the vacuum cleaner body 110 is clamped on the left and right by the clamping walls 162 and 163. At this time, the clamping walls 162 and 163 are in a state of being pressed against the left partition wall 117 and the right partition wall 118 with a certain degree of force, but the force does not need to be large enough to form an airtight sealing structure between the clamping walls 162 and 163, the left partition wall 117, and the right partition wall 118.

[0042] In order to prevent the user's hand from sliding on the outer side of the cover 114 when the cover 114 is removed from the cleaner body 110 and when the cover 114 is installed on the cleaner body 110, anti-slip parts 166 and 167 are formed on the outer side of the clamping walls 162 and 163. In this embodiment, the anti-slip parts 166 and 167 are composed of ribs that protrude from the outer side of the clamping walls 162 and 163 and extend in the up-down direction.

[0043] A sealing wall 171 and a filter mounting portion 172 are provided in a space surrounded by the rear wall 161, the clamping walls 162, 163 and the lower wall 164, which protrude from the rear wall 161 to the front (i.e., the side of the vacuum cleaner body 110). The sealing wall 171 is provided so as to form the rear portion 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 installed on the rear edge of the partition wall 116, the left partition wall 117, the right partition wall 118 and the lower wall 119 of the vacuum cleaner body 110 over the entire length. As a result, the vacuum cleaner body 110 and the cover body 114 are in airtight contact with each other, and when the suction source 111 is in operation, air is prevented from flowing into the dust storage chamber 113 from their joints.

[0044] The filter mounting portion 172 protrudes from the rear wall 161 in such a manner as to partition the rear portion of the dust storage chamber 113 formed by the sealing wall 171 and the rear wall 161 up and down. In addition, the filter mounting portion 172 is spaced apart to the left relative to the right side portion of the sealing wall 171. Between the right side portion of the sealing wall 171 and the filter mounting portion 172, a fixing rod portion 180 is arranged for fixing the filter portion 173 configured to store dust to the filter mounting portion 172.

[0045] On the upper side of the filter mounting portion 172, the protruding height of the sealing wall 171 from the rear wall 161 is smaller than the protruding height of the clamping walls 162 and 163 from the rear wall 161. In addition, the protruding height of the sealing wall 171 gradually decreases as it goes from the filter mounting portion 172 to the upper side, and the protruding height of the upper end portion of the sealing wall 171 is the smallest in the sealing wall 171.

[0046] like Figure 6 As shown, the filter 173 is mounted on the filter mounting portion 172 in a state of being accommodated in the space on the upper side of the filter mounting portion 172. At this time, a part of the filter 173 is surrounded in the circumferential direction based on the outer wall portion 160 of the cover body 114 having a concave cross-section. Therefore, after the cover body 114 is separated from the cleaner body 110, if the user holds the cover body 114 in a manner such that the rear wall 161 is located below, the dust spilled from the filter 173 can be retained on the cover body 114.

[0047] The filter unit 173 includes: a substantially rectangular fixing plate 174 disposed adjacent to the upper side of the filter mounting unit 172; and a bag body 175 mounted on the fixing plate 174. The bag body 175 is Figure 6 However, if dust flows into the bag body 175, Figure 2 and Figure 4 The bag 175 is configured to allow air to pass through while collecting dust contained in the air. The dust is stored inside the bag 175. The bag 175 can be formed of a fiber material such as paper or nonwoven fabric.

[0048] The fixing plate 174 is formed of a material having higher rigidity than the bag body 175, for example, it can be formed of thick paper. Figure 7 As shown, an inlet 176 for allowing dust to flow into the bag 175 is formed substantially at the center of the fixing plate 174. The inlet 176 opens downward when the cover 114 is attached to the cleaner body 110.

[0049] The fixing lever 180 is mounted on the cover 114 to remove the filter 173 from the cover 114 after the cover 114 is separated from the cleaner body 110. The fixing lever 180 has an operating portion 185 that can rotate to the left (i.e., inside the cover 114) around a fixing shaft 184 fixed to the cover 114.

[0050] A fixing portion 186 configured to sandwich the fixing plate 174 of the filter portion 173 with the filter attachment portion 172 is provided on the opposite side of the fixing shaft portion 184 from the operation portion 185 . Figure 6The fixing portion 186 is shown in a fixed position where the fixing plate 174 of the filter portion 173 is sandwiched between the fixing portion 186 and the filter mounting portion 172 .

[0051] If the user presses the operating portion 185 to the left (ie, the inner side of the cover 114), the fixing portion 186 moves from Figure 6 The fixed position shown in FIG. 1 is retracted away from the filter mounting portion 172 and moved to Figure 5 That is, the fixing lever 180 is configured to release the fixing plate 174 of the filter 173 from between the filter mounting portion 172 and the fixing portion 186 based on the operation of the operating portion 185 .

[0052] like Figure 8 As shown, the fixed rod 180 further comprises: a front tube 181 connected to the operating part 185; a rear tube 182 arranged at a position spaced apart from the front tube 181 to the rear; and a force applying part 183 arranged between the front tube 181 and the rear tube 182. In this embodiment, the force applying part 183 is composed of a torsion spring, which applies force to the fixed part 186 toward Figure 6 Forces in fixed positions shown.

[0053] Figure 5 The fixed shaft portion 184 shown is passed through the front tube portion 181, the force applying portion 183, and the rear tube portion 182. The fixed shaft portion 184, the front tube portion 181, the force applying portion 183, and the rear tube portion 182 are arranged in a space below the filter mounting portion 172.

[0054] like Figure 5 and Figure 6 As shown, the front cylinder 181 is located at the front side compared to the front edge of the sealing wall 171 forming the rear part of the dust storage chamber 113 and the front edges of the clamping walls 162 and 163 protruding outside the sealing wall 171. In other words, if the cover 114 is removed from the vacuum cleaner body 110, the front cylinder 181 is in a position protruding relative to the space surrounded by the sealing wall 171 and the space surrounded by the outer wall 160 of the cover 114, and is exposed to the outside. At this time, the operating part 185 connected to the front cylinder 181 is also in a position protruding relative to the space surrounded by the sealing wall 171 and the space surrounded by the outer wall 160 of the cover 114, and is also exposed to the outside. Therefore, the user can operate the operating part 185 without being hindered by the cover 114.

[0055] The fixing portion 186 includes: a connecting portion 192, which is connected to the front cylinder portion 181 and the rear cylinder portion 182 and protrudes to the space on the upper side of the filter mounting portion 172; and a pressing portion 187, which is bent to the left from the connecting portion 192. The pressing portion 187 is located on the upper side of the fixing plate 174 of the filter mounting portion 172 and the filter portion 173, and the right end portion of the fixing plate 174 is pressed against the filter mounting portion 172 based on the force of the force applying portion 183. In other words, the right end portion of the fixing plate 174 is clamped by the pressing portion 187 and the filter mounting portion 172. The pressing portion 187 is connected to the operating portion 185 through the connecting portion 192 and the front cylinder portion 181, and can move integrally with the operating portion 185. If the user presses the operating portion 185 to the left, the pressing portion 187 is displaced to the upper right. As a result, the fixing plate 174 is released from between the pressing portion 187 and the filter mounting portion 172 .

[0056] like Figure 8 As shown in FIG. 1 , the push-out portion 188 protrudes from the outer peripheral surface of the rear cylinder portion 182. The push-out portion 188 is configured to push the fixing plate 174 of the filter portion 173 away from the filter mounting portion 172 when the filter portion 173 is removed from the cover body 114. In order to allow the push-out portion 188 to protrude from the rear cylinder portion 182 disposed on the lower side of the filter mounting portion 172 to the space on the upper side of the filter mounting portion 172, as shown in FIG. Figure 5 As shown, an opening 189 is formed between the filter mounting portion 172 and the rear wall 161 of the cover body 114 .

[0057] The push-out portion 188 is integrated with the operating portion 185 through the rear cylinder portion 182, the connecting portion 192 of the fixing portion 186, and the front cylinder portion 181, and can move integrally with the operating portion 185. When the user presses the operating portion 185 to the left, the push-out portion 188 protrudes into the space above the filter mounting portion 172 through the opening 189, and pushes the fixing plate 174 of the filter portion 173 upward to separate it from the filter mounting portion 172.

[0058] A part of the suction pipe 120 is accommodated in the space below the filter mounting portion 172, and the filter mounting portion 172 holds the base end 124 of the suction pipe 120. When the filter portion 173 is fixed to the filter mounting portion 172 based on the fixing rod portion 180, the base end 124 of the suction pipe 120 faces the inlet 176 of the fixing plate 174 of the filter portion 173. In this state, dust passing through the suction pipe 120 is allowed to flow into the bag body 175 through the inlet 176 of the fixing plate 174 of the filter portion 173.

[0059] The suction tube 120 is formed to extend from the base end 124 to the Figure 1The flow path of the section from the suction nozzle 130 shown in FIG. 1 to FIG. 1 , in which the dust sucked in based on the suction force of the suction source 111 flows. Figure 1 As shown, the suction tube 120 includes: a base end tube portion 121 ; an extension tube portion 122 extending downward from the base end tube portion 121 ; and a distal end tube portion 123 attached to the lower end of the extension tube portion 122 .

[0060] like Figure 4 and Figure 5 As shown, the base end pipe part 121 has a second pipe part 126 fixed to the filter mounting part 172 and extending in the space below the filter mounting part 172. The second pipe part 126 is composed of a curved pipe. One end of the second pipe part 126 constitutes the base end 124 of the suction pipe 120, and the other end 128 of the second pipe part 126 opens to the cleaner body 110. A sealing body 129 is installed at the end 128.

[0061] like Fig. 9 and Fig.10 As shown, a check valve 190 is installed near the base end 124 of the second tube portion 126 . Fig. 9 The check valve 190 is shown when the suction source 111 is not working, and the check valve 190 closes the flow path of the second pipe part 126 at the lower side of the filter part 173. At this time, even if dust falls from the filter part 173 through the inlet 176, the dust will be blocked by the check valve 190 and will not flow back to the second pipe part 126.

[0062] on the other hand, Fig.10 The check valve 190 is shown when the suction source 111 is operating. The check valve 190 bends upward due to the upward suction force of the suction source 111, thereby opening the flow path of the second pipe portion 126. At this time, since the check valve 190 is located near the filter portion 173, a part of the check valve 190 enters the filter portion 173 through the inlet 176 of the fixing plate 174 of the filter portion 173.

[0063] like Figure 4 As shown, the base end pipe part 121 also has a first pipe part 125 formed integrally with the cleaner body 110, and is configured to be divisible into the first pipe part 125 and the second pipe part 126. The lower end portion of the first pipe part 125 is formed to allow Figure 1 The extension tube 122 shown is inserted. Figure 4As shown, the upper end portion 127 of the first tube portion 125 is bent toward the cover body 114, and the end surface of the upper end portion 127 faces the end portion 128 of the second tube portion 126. The end surface of the upper end portion 127 is pressed against a sealing body 129 mounted on the end portion 128 of the second tube portion 126, and the first tube portion 125 and the second tube portion 126 are connected to each other through the sealing body 129. Therefore, the inflow of air from the joint between the first tube portion 125 and the second tube portion 126 is suppressed by the sealing body 129.

[0064] The upper end of the extension tube 122 can be removed from the first tube 125, and the distal tube 123 can be removed from the lower end of the extension tube 122. The distal tube 123 allows the suction tube 120 and the cleaner body 110 to be removed from the first tube 125. Figure 1 The upright posture shown becomes Figure 2 The suction nozzle 130 is installed at the rear of the suction nozzle 130 in a backward tilted posture as shown. A suction space (not shown) connected to the flow path of the suction pipe 120 is formed inside the suction nozzle 130, and the suction space opens downward to allow dust on the ground to flow in. In addition, the suction nozzle 130 has a lateral width sufficient to maintain the suction pipe 120 and the vacuum cleaner body 110 in an upright posture as long as no external force is applied to the suction pipe 120 and the vacuum cleaner body 110.

[0065] (Vacuum cleaner action)

[0066] The user holds the grip 140 and places the suction pipe 120 and the cleaner body 110 Figure 2 The user then operates the operating unit 141 to operate the suction source 111. Based on this operation, the suction source 111 generates an upward suction force. Since the bag body 175 of the filter unit 173 is air-permeable, the suction force of the suction source 111 acts on the check valve 190 through the bag body 175. Therefore, based on the suction force of the suction source 111, the check valve 190 is Fig.10 In this state, the inner space of the filter 173 is connected to the flow path of the suction pipe 120. Since the flow path of the suction pipe 120 is connected to the suction space of the suction nozzle 130, the inner space of the filter 173 is also connected to the suction space of the suction nozzle 130 through the flow path of the suction pipe 120. Therefore, the suction force of the suction source 111 acts on the suction space of the suction nozzle 130 through the inner space of the filter 173 and the flow path of the suction pipe 120.

[0067] The suction space of the suction nozzle 130 opens downward. Therefore, when the user moves the suction nozzle 130 forward on the ground, the opening of the suction space faces the ground, and the dust on the ground is sucked into the suction space of the suction nozzle 130 based on the upward suction force of the suction source 111. Thereafter, the dust flows in the flow channel of the suction pipe 120 and flows into the bag body 175 of the filter part 173 through the inlet 176 of the fixing plate 174 of the filter part 173. Moreover, the dust is captured by the bag body 175 and stored in the bag body 175.

[0068] During the operation of the suction source 111, the internal pressure of the dust storage chamber 113 containing the filter 173 is lower than the pressure around the dust storage chamber 113. Therefore, the air around the dust storage chamber 113 is intended to flow into the dust storage chamber 113 through the joint between the cleaner body 110 and the cover 114 forming the dust storage chamber 113. However, since the sealing body 151 compressed by the cleaner body 110 and the cover 114 is arranged at the joint, the inflow of air through the joint is suppressed.

[0069] Furthermore, the pressure in the flow path of the suction pipe 120 is also lower than the pressure outside the suction pipe 120, and the air outside the suction pipe 120 tries to flow into the flow path of the suction pipe 120 through the joint between the first pipe portion 125 and the second pipe portion 126 of the suction pipe 120. However, since the sealing body 129 compressed by the first pipe portion 125 and the second pipe portion 126 is arranged at the joint, the inflow of air through the joint is suppressed.

[0070] Since the air inflow through the joint between the cleaner body 110 and the cover 114 and the joint between the first tube 125 and the second tube 126 is suppressed, the suction force in the dust storage chamber 113 and the suction pipe 120 is suppressed from decreasing. Thus, a suction force large enough to suck up dust on the ground can be applied to the suction space of the suction nozzle 130.

[0071] When the user finishes cleaning the desired floor area, he / she operates the operating unit 141 to stop the suction source 111. In addition, the user moves the suction pipe 120 and the cleaner body 110 as shown in FIG. Figure 1 As shown in the figure, the vacuum cleaner 100 is set in an upright position. Since the horizontal width of the suction nozzle 130 is large, the vacuum cleaner 100 can be placed on the ground with the suction pipe 120 and the vacuum cleaner body 110 maintained in an upright position. At this time, the inlet 176 of the filter 173 opens downward, but the base end 124 of the suction pipe 120 facing the inlet 176 is closed by the check valve 190. Therefore, the dust from the filter 173 is prevented from falling due to the check valve 190 (that is, the dust from the filter 173 to the suction pipe 120 flows back).

[0072] After that, when the user cleans other floor areas, the suction pipe 120 and the cleaner body 110 are again tilted backward. At this time, the corner formed by the rear wall 161 of the cover 114 and the filter mounting portion 172 is at the lowest position in the dust storage chamber 113. Therefore, the dust in the filter portion 173 is Fig.11 As shown, it becomes accumulated on the corner.

[0073] If the user operates the suction source 111 while the suction pipe 120 and the cleaner body 110 are in a backward tilted position, the dust storage chamber 113 is filled with dust. Fig.11 As shown by the arrow in FIG. 1 , an airflow is generated from the base end 124 of the suction tube 120 to the outlet 152. At this time, the dust accumulated in the corner is not affected by the airflow and tends to remain accumulated in the corner. Therefore, less dust flows toward the outlet 152 riding the airflow. As a result, the situation in which the dust is adsorbed on the inner side surface of the bag body 175 of the filter unit 173 and blocks the outlet 152 is suppressed. Therefore, it is easy to maintain the strength of the airflow from the base end 124 of the suction tube 120 to the outlet 152.

[0074] However, if a large amount of dust accumulates in the filter 173, the resistance caused by the dust increases, and the suction force acting on the suction space of the suction nozzle 130 decreases. In order to solve this problem, the filter 173 can be replaced with a new filter 173 as follows.

[0075] In order to replace the filter 173, the user grasps and pulls the cover 114 backward. At this time, the anti-slip parts 166 and 167 provided on the outer side of the cover 114 can prevent the user's hand from sliding on the cover 114.

[0076] If the user pulls the cover 114 backward, the cover 114 will Figure 2 As shown, the cover 114 tilts backward with the engaging portion 165 as the axis. As the cover 114 tilts backward, the second tube portion 126 on the cover 114 side leaves the first tube portion 125 on the cleaner body 110 side. Therefore, the user can tilt the cover 114 backward without being hindered by the suction pipe 120.

[0077] At this time, the end 128 of the second tube 126 opens obliquely upward as the cover 114 tilts backward. Therefore, even if dust remains in the second tube 126, it is difficult for the dust to spill out from the end 128. In addition, if dust spills from the end 128, the dust will be received by the lower wall 164 or the rear wall 161 of the cover 114. Thereafter, the user can pull the cover 114 backward and obliquely upward to separate it from the cleaner body 110.

[0078] In order to reduce the force required when pulling the cover 114 backward from the cleaner body 110, the clamping walls 162 and 163 of the cover 114 are configured not to clamp the cleaner body 110 with too strong a force. In this case, the clamping walls 162 and 163 cannot be in airtight contact with the cleaner body 110. For this purpose, a sealing wall 171 is provided between the clamping walls 162 and 163, and the sealing wall 171 is used to prevent air from flowing into the dust storage chamber 113 from the joint between the cleaner body 110 and the cover 114.

[0079] That is, if a sealing structure is formed between the clamping walls 162, 163 and the cleaner body 110, in this case, the clamping walls 162, 163 are pressed against the cleaner body 110 with a sufficiently strong force to prevent air from flowing in. In this case, the friction between the clamping walls 162, 163 and the cleaner body 110 may become too high, and the user must apply a strong force to the cover 114 in order to remove the cover 114 from the cleaner body 110.

[0080] On the other hand, if the sealing structure is formed by using the sealing wall 171 which is provided separately from the clamping walls 162 and 163 that clamp the vacuum cleaner body 110, the clamping walls 162 and 163 do not need to be pressed with a strong force. Therefore, the clamping walls 162 and 163 can be configured to clamp the vacuum cleaner body 110 lightly, and the user can separate the cover 114 from the vacuum cleaner body 110 with a small force.

[0081] When the cover 114 is separated from the cleaner body 110, the dust storage chamber 113 is opened to the outside, but the dust remains in the bag 175 of the filter 173. Therefore, the dust scattering when the cover 114 is separated from the cleaner body 110 is suppressed.

[0082] If the cover 114 is separated from the cleaner body 110, the upper end 127 of the first tube 125 and the end 128 of the second tube 126 are also Figure 3 and Figure 5 Therefore, the user can visually check whether the first tube 125 and the second tube 126 are blocked by dust through the upper end 127 of the first tube 125 and the end 128 of the second tube 126. Moreover, when the first tube 125 and the second tube 126 are blocked by dust, the user can remove the dust through the upper end 127 of the first tube 125 and the end 128 of the second tube 126.

[0083] Since the filter 173 is fixed to the side of the cover 114 based on the fixing rod 180 installed on the cover 114, the filter 173 and the fixing rod 180 are removed from the vacuum cleaner body 110 together with the cover 114. After that, the user can hold the cover 114 in a manner such that the rear wall 161 of the cover 114 is located below and carry it to a trash can. At this time, the sealing wall 171 and the clamping walls 162 and 163 of the cover 114 are in a posture of being erected upward from the rear wall 161. Therefore, if dust falls from the filter 173, the dust can also be retained on the cover 114 based on the sealing wall 171 and the clamping walls 162 and 163.

[0084] After the user carries the cover 114 together with the filter 173 to the vicinity of the trash can, the user can perform the operation of separating the filter 173 from the cover 114. In this operation, the user presses the operating portion 185 of the fixed rod 180 to the left against the force of the force applying portion 183. At this time, since the fixed rod 180 has been separated from the cleaner body 110, the user can operate the operating portion 185 without being hindered by the cleaner body 110. In addition, since the operating portion 185 is exposed from the cover 114, the operation of the operating portion 185 will not be hindered by the cover 114.

[0085] If the user presses the operating portion 185 to the left, the pressing portion 187 of the fixing portion 186 of the fixing rod 180 is displaced in a direction away from the filter mounting portion 172. Figure 5 The release position shown in the figure is released, thereby releasing the state where the fixing plate 174 of the filter 173 is clamped by the pressing portion 187 of the fixing portion 186 and the filter mounting portion 172. Thereafter, if the user presses the operating portion 185 to the left and holds the cover 114 on the trash can with the rear wall 161 of the cover 114 located above, the cover 114 is opened downward. As a result, the filter 173 falls into the trash can due to gravity.

[0086] When the user wants to discard the filter 173, if the pusher 188 does not push the fixing plate 174 of the filter 173 away from the filter mounting portion 172, the following problem may occur. That is, when the suction source 111 generates suction force, the check valve 190 may be Fig.10 As shown in the figure, the filter 173 is entered. Moreover, if the suction source 111 stops, the check valve 190 will return to Fig. 9 The posture shown. It can be expected that: Fig. 9 and Fig.10As a result of the repeated posture changes shown, the check valve 190 undergoes plastic deformation, and even if the suction source 111 stops, a portion of the check valve 190 is maintained in a state of entering the filter portion 173. In this state, if the filter portion 173 is displaced in a direction away from the rear wall 161 of the cover body 114 while sliding with the filter mounting portion 172, the fixing plate 174 of the filter portion 173 will be caught by the check valve 190, and the check valve 190 may be damaged.

[0087] On the other hand, if the push-out portion 188 pushes the fixing plate 174 away from the filter mounting portion 172, the check valve 190 that has been plastically deformed as described above can be separated from the filter portion 173. In this state, the fixing plate 174 is not caught by the check valve 190, and the filter portion 173 can fall from the cover 114. Therefore, damage to the check valve 190 when the filter portion 173 is replaced is suppressed.

[0088] The protruding height of the sealing wall 171 from the rear wall 161 is set so that the filter 173 can easily fall from the cover 114. That is, in the portion adjacent to the filter 173, the protruding height of the sealing wall 171 from the rear wall 161 is smaller than the protruding height of the clamping walls 162 and 163 from the rear wall 161. Since the protruding height of the sealing wall 171 is relatively small, the contact area between the filter 173 and the sealing wall 171 is small. As a result, the friction force resisting the filter 173 from falling from the cover 114 does not become too large, and the filter 173 can easily fall from the cover 114.

[0089] Furthermore, in order to further reduce the friction between the filter 173 and the sealing wall 171, the sealing wall 171 may protrude from the rear wall 161 of the cover body 114 in an outwardly inclined posture. In this case, when the cover body 114 is mounted on the vacuum cleaner body 110, the rear portion of the dust storage chamber 113 is shaped to expand in the up-down direction and / or in the left-right direction as it approaches the vacuum cleaner body 110. If the user separates the cover body 114 from the vacuum cleaner body 110 and holds the cover body 114 in a downwardly open rear portion of the dust storage chamber 113, the rear portion of the dust storage chamber 113 becomes wider as it goes downward, and the filter 173 can easily fall from the cover body 114. The sealing wall 171 may be inclined outward over its entire length, but may also be, for example, Fig.12 As shown in the figure, only the upper end of the sealing wall 171 is inclined outward when the cover 114 is attached to the cleaner body 110.

[0090] After the user separates the used filter 173 from the cover 114, the user installs a new filter 173 on the cover 114. That is, the user presses the operating portion 185 of the fixing rod 180 again to the left to move the fixing portion 186 away from the filter mounting portion 172. Furthermore, the fixing plate 174 of the filter 173 is inserted into the gap between the fixing portion 186 and the filter mounting portion 172. In this state, if the user releases his hand from the operating portion 185, the fixing portion 186 is displaced to the position due to the force of the force applying portion 183. Figure 6 In the fixed position shown, the fixing plate 174 is clamped by the fixing portion 186 and the filter mounting portion 172. As a result, the new filter portion 173 is fixed to the cover 114.

[0091] After that, the user sets the cover 114 to a backward tilted posture and engages the engaging portion 165 of the cover 114 with the engaging claw portion 154 of the cleaner body 110. Furthermore, if the user swings the cover 114 toward the cleaner body 110 with the engaging portion 165 as an axis, the cleaner body 110 is inserted between the clamping walls 162 and 163 of the cover 114.

[0092] The cleaner body 110 is configured to prevent the filter 173 from being caught by the cleaner body 110 during the above-mentioned installation operation. Figure 3 and Figure 4 As shown in the figure, the front part of the dust storage chamber 113 formed by the cleaner body 110 becomes wider in the vertical direction as it approaches the cover 114. Therefore, it is possible to prevent the filter 173 from being caught at the entrance of the front part of the dust storage chamber 113.

[0093] In the vacuum cleaner 100 of the above-mentioned embodiment, the suction pipe 120 and the filter 173 are mounted on the filter mounting portion 172. As an alternative, the suction pipe 120 may also be directly connected to the filter 173. In this case, if the filter 173 is pushed out based on the push-out portion 188 and separated from the suction pipe 120, the filter 173 can leave the check valve 190 mounted on the base end 124 of the suction pipe 120. In the case where the suction pipe 120 is directly connected to the filter 173, the filter mounting portion 172 may be omitted.

[0094] The vacuum cleaner 100 of the above-mentioned embodiment is provided with a check valve 190 to prevent dust from falling from the filter 173 to the suction pipe 120. Fig.13 As shown, a seal 191 is additionally provided on the cover body 114 . Fig.13The seal 191 shown is composed of an O-ring mounted on the base end 124 of the suction pipe 120 to prevent the air and dust passing through the suction pipe 120 from flowing to the outside of the bag-shaped filter part 173. That is, if the fixing plate 174 of the filter part 173 is clamped by the filter mounting part 172 and the pressing part 187 of the fixing part 186, the seal 191 is compressed by the fixing plate 174, so that the seal 191 is pressed against the fixing plate 174 in an airtight manner.

[0095] In the case where the vacuum cleaner 100 has the seal 191, assuming that the fixing plate 174 is not pushed out of the filter mounting portion 172 by the push-out portion 188, the seal 191 may be damaged as follows. That is, when the filter portion 173 is removed from the cover 114, the seal 191 may rub against the fixing plate 174 of the filter portion 173. As a result, the wear of the seal 191 may be accelerated.

[0096] On the other hand, if the pusher 188 pushes the fixing plate 174 of the filter 173 away from the filter mounting portion 172, the fixing plate 174 also leaves the seal 191. Therefore, the filter 173 can fall without the fixing plate 174 rubbing against the seal 191, thereby suppressing the wear of the seal 191.

[0097] Fig.13 In the vacuum cleaner 100, the check valve 190 and the seal 191 are installed on the suction pipe 120. As an alternative, they can also be installed on the filter installation part 172.

[0098] In the above-mentioned embodiment, the filter section 173 is arranged in the dust storage chamber 113 with the inlet 176 opening downward. In this case, a check valve 190 is required to prevent dust from the filter section 173 from falling. However, in the case where the filter section 173 is arranged in the dust storage chamber 113 with the inlet 176 opening horizontally or upward, it is difficult for dust from the filter section 173 to fall. Therefore, the check valve 190 may not be provided. Even in this case, in order to prevent dust from flowing to the outside of the filter section 173, the seal 191 may be arranged at the connection portion between the filter section 173 and the suction pipe 120. Even in such a structure, by allowing the push-out portion 188 to push out the fixing plate 174 of the filter section 173 away from the filter mounting portion 172, it is possible to suppress the wear of the seal 191.

[0099] In the above-mentioned embodiment, the cover 114 clamps the vacuum cleaner body 110 by the clamping walls 162 and 163 to prevent the cover 114 from accidentally falling off the vacuum cleaner body 110 when the cover 114 is installed on the vacuum cleaner body 110. As an alternative, other methods can be used to prevent the cover 114 from falling off the vacuum cleaner body 110. For example, if the vacuum cleaner body 110 and the cover 114 are configured to be magnetically adsorbed, it is difficult for the cover 114 to accidentally fall off the vacuum cleaner body 110. In this case, the cover 114 does not need to have the clamping walls 162 and 163. In the case where the clamping walls 162 and 163 are not provided on the cover 114, the cover 114 may also have a flat plate shape.

[0100] In the above-mentioned embodiment, the anti-slip parts 166 and 167 are formed by ribs protruding from the outer wall part 160 of the cover body 114. As an alternative, the anti-slip parts 166 and 167 may also have other shapes that can prevent the user's hand from sliding on the cover body 114. For example, the anti-slip parts 166 and 167 may be formed by a plurality of protrusions protruding from the outer wall part 160 of the cover body 114. Alternatively, the anti-slip parts 166 and 167 may also be rubber plates attached to the outer wall part 160 of the cover body 114. In addition, in the case where the outer side surface of the cover body 114 itself has a higher friction coefficient than the user's hand, the anti-slip parts 166 and 167 may also be omitted.

[0101] In the above-mentioned embodiment, the front part of the dust storage chamber 113 formed by the vacuum cleaner body 110 becomes wider in the vertical direction as it approaches the cover 114 installed on the vacuum cleaner body 110 based on the inclination of the partition wall 116. As an alternative, the vacuum cleaner body 110 can also be configured to become wider in the left-right direction as the front part of the dust storage chamber 113 approaches the cover 114.

[0102] In the above-mentioned embodiment, the fixing portion 186 and the pushing portion 188 are formed integrally with the operating portion 185 as a part of the fixing rod portion 180. As an alternative, the fixing portion 186 and the pushing portion 188 may be formed as a component different from the operating portion 185. In this case, the fixing portion 186 and the pushing portion 188 are configured to operate according to the operation of the operating portion 185. For example, in the case where the operating portion 185 is configured by a button, the fixing portion 186 and the pushing portion 188 may also be a piston member configured in such a manner that when the button is pressed, the filter portion 173 is electromagnetically driven to move in a direction away from the filter mounting portion 172.

[0103] In the above-mentioned embodiment, the second tube 126 can be separated from the first tube 125 as the cover 114 is separated from the cleaner body 110. Alternatively, the second tube 126 can also maintain the connection state with the first tube 125 when the cover 114 is separated from the cleaner body 110. For example, if the upper end 127 of the first tube 125 can be extended and retracted, the connection state of the first tube 125 and the second tube 126 can be maintained even if the cover 114 is tilted backward relative to the cleaner body 110. If the cover 114 is tilted backward relative to the cleaner body 110, the user can contact the connection portion of the first tube 125 and the second tube 126, so the user can release the connection between the first tube 125 and the second tube 126. Thereafter, the user can separate the second tube 126 from the first tube 125.

[0104] In the above-mentioned embodiment, the cover 114 is removed from the vacuum cleaner body 110 toward the rear. As an alternative, the vacuum cleaner 100 may be configured so that the cover 114 is removed from the vacuum cleaner body 110 toward the front, toward the right, or toward the left. Alternatively, if the filter 173 can be removed from the dust storage chamber 113, the cover 114 does not have to be separated from the vacuum cleaner body 110. For example, the cover 114 may be mounted on the vacuum cleaner body 110 in a manner that allows it to rotate around a designated rotation axis so that the dust storage chamber 113 can be opened by changing the posture while maintaining the connection with the vacuum cleaner body 110 via the rotation axis.

[0105] In the above-mentioned embodiment, when the cover 114 is removed from the cleaner body 110, the operating part 185 is exposed to the outside from the cover 114. Alternatively, if the user can operate the operating part 185 after removing the cover 114 from the cleaner body 110, the operating part 185 may also be arranged inside the cover 114.

[0106] In the above-mentioned embodiment, the filter part 173, the operation part 185, the push part 188, the check valve 190 and the seal 191 are mounted on the cover 114. Alternatively, they may be mounted on the cleaner body 110.

[0107] In the above-mentioned embodiment, the vacuum cleaner 100 is a stick type. As an alternative, the vacuum cleaner 100 may also be a self-propelled vacuum cleaner (so-called robot vacuum cleaner), a canister vacuum cleaner or a portable vacuum cleaner.

[0108] (Effects, etc.)

[0109] The vacuum cleaner 100 according to the above-described embodiment has the following features and has the following effects.

[0110] The vacuum cleaner involved in one aspect of the above-mentioned embodiment includes: a vacuum cleaner body, which has a suction source for generating a suction force for sucking in dust, and forms a dust storage chamber into which air containing dust is sucked based on the operation of the suction source; a cover body, which is mounted on the vacuum cleaner body in a manner that allows the dust storage chamber to be opened and closed; a suction pipe, which forms a flow channel for allowing the dust sucked in based on the suction force of the suction source to flow to the dust storage chamber; a bag-shaped filter portion, which is arranged in the dust storage chamber in a manner that captures and stores dust that has passed through the suction pipe; a check valve or a seal, the check valve preventing dust from flowing back from the filter portion to the suction pipe, and the seal preventing air and dust from flowing from the suction pipe to the outside of the filter portion; an operating portion, which is operated to remove the filter portion when the dust storage chamber is opened; and a pushing portion, which pushes the filter portion in a direction away from the check valve or the seal based on the operation of the operating portion.

[0111] According to the above structure, when the suction source is working, based on the suction force of the suction source, dust flows in the flow channel of the suction pipe and is stored in the bag-shaped filter part in the dust storage chamber. If there is a concern that dust flows from the suction pipe to the outside of the filter part during this period, a seal can be provided. If there is a concern that the dust stored in the filter part flows back to the suction pipe, a check valve can be provided. However, it is expected that when the filter part is replaced, the seal or the check valve will be damaged by the filter part as follows.

[0112] That is, when a certain amount of dust accumulates in the filter part, the user operates the cover to open the dust storage chamber. Thereafter, the user can remove the filter part from the dust storage chamber by operating the operating part. At this time, if the filter part contacts the seal or the check valve, the check valve or the seal may be damaged by the force from the filter part. In order to suppress such damage, in the above-mentioned structure, after the user operates the operating part, the push-out part pushes the filter part away from the seal or the check valve. As a result, the filter part is away from the check valve or the seal, thereby suppressing the contact between the filter part and the check valve or the contact between the filter part and the seal during the disassembly operation of the filter part. Therefore, the damage to the check valve or the seal can be suppressed by the push-out part.

[0113] In the above structure, the filter part may be opened downward. The check valve may be configured such that: when the suction source stops, the check valve is located at the lower side of the filter part, closes the suction pipe and blocks dust falling from the filter part; and when the suction source is working, the check valve is bent and deformed upward in a manner such that it enters the filter part and opens the suction pipe based on the suction force of the suction source.

[0114] According to the above structure, the filter part opens downward, so the dust in the filter part tends to fall through the opening of the filter part due to gravity. In order to prevent such dust from falling, the check valve is configured to close the suction pipe and block the dust falling from the filter when the suction source stops.

[0115] When the suction source is in operation, the check valve is bent and deformed upward by the suction force of the suction source. As a result, the opening of the filter unit is opened, and dust passing through the suction pipe can flow into the filter unit.

[0116] It can be expected that after the bending deformation of the check valve is repeated, the check valve will undergo plastic deformation, thereby maintaining the upward bending deformation of the check valve (that is, maintaining the state of the check valve entering the filter portion) even when the suction source stops. In this state, if the filter portion is not fully separated from the check valve and is taken out of the dust storage chamber, the check valve may get stuck on the filter portion and be damaged by the filter portion. In order to prevent such damage, in the above-mentioned structure, if the operating portion is operated, the pushing portion pushes the filter portion in a manner that causes the filter portion to separate from the check valve. As a result, the state of the check valve entering the filter portion is eliminated, and damage to the check valve can be prevented.

[0117] Furthermore, when the check valve is disposed in the suction pipe at a position away from the filter portion so as not to allow the check valve that is bent and deformed upward to enter the filter portion, although the check valve will not be damaged, a certain amount of dust will enter the suction pipe. On the other hand, if the check valve is disposed close to the filter portion so as to allow the check valve that is bent and deformed upward to enter the filter portion, the amount of dust that flows back into the suction pipe can be reduced.

[0118] In the above-mentioned structure, the seal is configured to prevent air and dust from flowing from the suction pipe to the outside of the filter unit by being pressed against the filter unit.

[0119] According to the above structure, in order to prevent air and dust from flowing from the suction pipe to the outside of the filter, the seal is pressed against the filter. At this time, if the filter is taken out of the dust storage chamber without leaving the seal, the filter and the seal will rub against each other, thereby damaging the seal. In order to prevent such damage to the seal, in the above structure, if the operating part is operated, the push-out part pushes the filter so that the filter is separated from the seal. As a result, the filter can be taken out of the dust storage chamber without rubbing against the seal, and damage to the seal can be suppressed.

[0120] In the above configuration, the cover may include a filter mounting portion to which the filter portion is mounted, and may be configured to be detachable from the cleaner body.

[0121] According to the above configuration, the filter is attached to the filter attachment portion provided on the cover. Therefore, when the cover is separated from the cleaner body, the filter can be taken out from the dust storage chamber while being attached to the cover.

[0122] In the above-mentioned structure, the filter attachment portion may be configured to hold the base end of the suction tube.

[0123] According to the above structure, the filter mounting part holds the base end of the suction pipe, so that the filter mounted on the filter mounting part can be located near the base end of the suction pipe. Therefore, dust can flow into the filter part just after passing through the base end of the suction pipe.

[0124] In the above structure, the check valve or the seal may be mounted on the base end of the suction pipe or the filter mounting portion. The push-out portion may be configured such that the filter portion is separated from the filter mounting portion when the operating portion is operated.

[0125] According to the above structure, the check valve or the seal is mounted on the filter mounting portion or the base end of the suction pipe held by the filter mounting portion, and is therefore arranged close to the filter portion mounted on the filter mounting portion. Furthermore, when the pusher moves the filter portion away from the filter mounting portion based on the operation of the operating portion, the filter portion can be separated from the check valve or the seal.

[0126] In the above structure, the vacuum cleaner may further include a fixing part for fixing the filter part to the filter mounting part. The fixing part may be configured in such a way that when the operation part is operated so that the pushing part pushes the filter part out, the fixing part releases the fixing of the filter part on the filter mounting part.

[0127] According to the above structure, the filter part is fixed to the filter mounting part based on the fixing part, thereby preventing it from moving in the dust storage chamber. Since the fixing of the filter part on the filter mounting part is released based on the user operating the operating part, the pushing part can make the filter part leave the filter mounting part without being hindered by the fixing part.

[0128] In the above structure, the fixing portion, the operating portion and the pushing portion may be provided on the cover body.

[0129] According to the above structure, not only the filter mounting portion but also the fixing portion, the operating portion and the pushing portion are provided on the cover body, so that when the cover body is separated from the vacuum cleaner body, the user can operate the operating portion without being hindered by the vacuum cleaner body. In other words, the user can perform the operation for removing the filter portion from the filter mounting portion without being hindered by the vacuum cleaner body.

[0130] In the above configuration, the operating portion may be attached to the cover body in such a manner that the operating portion is exposed to the outside when the cover body is separated from the cleaner body.

[0131] According to the above configuration, when the cover is separated from the cleaner body, the operation portion is exposed to the outside, and the user can operate the operation portion without being obstructed by the cleaner body or the cover.

[0132] In the above structure, the suction pipe may include: a first pipe portion fixed in the vacuum cleaner body; and a second pipe portion forming a base end of the suction pipe and extending from the filter mounting portion and connectable to the first pipe portion. The second pipe portion may be configured such that the second pipe portion is separated from the first pipe portion as the cover is removed from the vacuum cleaner body.

[0133] According to the above structure, if the cover is separated from the vacuum cleaner body, the second pipe part is separated from the first pipe part fixed in the vacuum cleaner body and can be taken out from the dust storage chamber together with the filter mounting part. Therefore, the user can separate the cover from the vacuum cleaner body without being hindered by the suction pipe.

[0134] In the above structure, the vacuum cleaner may further include: a sealing body provided at the joint between the first tube portion and the second tube portion. The sealing body may be configured to be compressed based on the first tube portion and the second tube portion when the cover is mounted on the vacuum cleaner body to inhibit air from flowing from the joint into the flow path of the suction tube.

[0135] If air flows in from the joint between the first tube and the second tube, the suction force acting on the first tube will decrease. In order to suppress such a decrease in suction force, in the above-mentioned structure, a sealing body is provided at the joint between the first tube and the second tube. If the cover is installed on the vacuum cleaner body, the sealing body is compressed based on the first tube and the second tube. As a result, the inflow of air from the joint between the first tube and the second tube is suppressed.

[0136] Industrial Applicability

[0137] The vacuum cleaner according to the above-described embodiment can be preferably used as a device for cleaning work.

Claims

1. A vacuum cleaner, characterized in that include: The vacuum cleaner body has a suction source for generating a suction force for sucking dust, and a dust storage chamber for sucking air containing dust based on the operation of the suction source; a cover body mounted on the vacuum cleaner body in a manner capable of opening and closing the dust storage chamber; A suction pipe is formed with a flow passage for allowing the dust sucked in based on the suction force of the suction source to flow to the dust storage chamber; A bag-shaped filter portion is arranged in the dust storage chamber in such a manner as to capture and store dust that has passed through the suction pipe; a check valve or a seal, wherein the check valve prevents dust from flowing back from the filter portion to the suction pipe, and the seal prevents air and dust from flowing from the suction pipe to the outside of the filter portion; an operating portion that is operated in order to remove the filter portion in a state where the dust storage chamber is opened; and The pushing portion pushes the filter portion in a direction away from the check valve or the sealing member based on the operation of the operating portion.

2. The vacuum cleaner according to claim 1, characterized in that: The filter portion opens downward, The check valve is constructed as follows: when the suction source stops, the check valve is located at the lower side of the filter portion, closes the suction pipe and blocks dust falling from the filter portion; and when the suction source is working, the check valve is bent and deformed upward in a manner such that it enters the filter portion and opens the suction pipe based on the suction force of the suction source.

3. The vacuum cleaner according to claim 1, characterized in that: The seal is configured to prevent air and dust from flowing from the suction pipe to the outside of the filter unit by being pressed against the filter unit.

4. The vacuum cleaner according to any one of claims 1 to 3, characterized in that: The cover has a filter mounting portion to which the filter portion is mounted, and is configured to be detachable from the cleaner body.

5. The vacuum cleaner according to claim 4, characterized in that: The filter mounting portion is configured to hold the base end of the suction tube.

6. The vacuum cleaner according to claim 5, characterized in that: The check valve or the seal is mounted on the base end of the suction pipe or the filter mounting portion. The push-out portion is configured to move the filter portion away from the filter mounting portion when the operating portion is operated.

7. The vacuum cleaner according to claim 6, characterized in that Also includes: A fixing part fixes the filter part to the filter mounting part; wherein, The fixing portion is configured so as to release the fixing of the filter portion to the filter mounting portion as the operation portion is operated so that the pushing portion pushes out the filter portion.

8. The vacuum cleaner according to claim 7, characterized in that: The fixing portion, the operating portion, and the pushing portion are disposed on the cover body.

9. The vacuum cleaner according to claim 4, characterized in that: The operation portion is attached to the cover body in such a manner that the operation portion is exposed to the outside when the cover body is separated from the cleaner body.

10. The vacuum cleaner according to claim 5, characterized in that: The suction pipe has: a first pipe portion fixed in the vacuum cleaner body; and The second pipe portion forms the base end of the suction pipe and is extended from the filter mounting portion and can be connected to the first pipe portion; wherein, The second pipe portion is configured to separate from the first pipe portion as the cover is removed from the cleaner body.

11. The vacuum cleaner according to claim 10, characterized in that Also includes: The sealing body is arranged at the joint between the first tube part and the second tube part; wherein, The sealing body is configured to be compressed by the first pipe portion and the second pipe portion when the cover is attached to the cleaner body, thereby suppressing air from flowing from the joint into the flow path of the suction pipe.

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