Abstract: A mechanism that enables developer replenishment by a simpler structure and a mechanism that enables more user-friendly developer replenishment are provided. An attachment port to which a developer supply bottle containing a developer stored therein is detachably attachable is disposed in an interior of an image forming apparatus. The developer supply bottle can be attached when the cover is in an open state. According to this image forming apparatus, when the developer supply bottle is attached to the attachment port, the developer inside the developer supply bottle moves into a developer housing chamber by its own weight.

Abstract: A grommet-equipped connector includes a connector and a grommet. The connector includes a panel engagement portion configured to be engaged with an attachment hole of a panel and an annular flange configured to face an edge portion of the attachment hole. The grommet includes a panel contact portion configured to be fitted so as to cover the flange and intimately contact the edge portion. A flange fitting groove in which the flange is inserted over an entire perimeter is formed inside the panel contact portion. The flange has a flange protrusion portion protruding outward and guided by the flange fitting groove.

Abstract: A grommet-equipped connector includes a connector and a grommet. The connector includes a panel engagement portion configured to be engaged with an attachment hole of a panel and an annular flange configured to face an edge portion of the attachment hole. The grommet includes a panel contact portion configured to be fitted so as to cover the flange and intimately contact the edge portion. A flange fitting groove in which the flange is inserted over an entire perimeter is formed inside the panel contact portion. The flange has a flange protrusion portion protruding outward and guided by the flange fitting groove.

Abstract: A lever-type connector 10 includes female and male connector housings 41 and 11 which have respective connection terminals 50 and 51, and can be fitted together. A lock lever 17 is pivotally supported on the male connector housing 11, and engagement lock projections 46, formed on the female connector housing 41, are engaged with the lock lever 17, and in this condition the lock lever 17 is pivotally moved so as to fit the female and male connector housings 41 and 11 together. The lock lever 17 has at least one projection 27 serving as a contact point at which the lock lever contacts the male connector housing 11.

Abstract: A lever-type connector 10 includes female and male connector housings 41 and 11 which have respective connection terminals 50 and 51, and can be fitted together. A lock lever 17 is pivotally supported on the male connector housing 11, and engagement lock projections 46, formed on the female connector housing 41, are engaged with the lock lever 17, and in this condition the lock lever 17 is pivotally moved so as to fit the female and male connector housings 41 and 11 together. The lock lever 17 has at least one projection 27 serving as a contact point at which the lock lever contacts the male connector housing 11.

Abstract: A locking arm 27 is supported by a fulcrum 31 attached to a body 28 and a pair of coupling portions 33, 34. When an operation portion 30 is pressed down, an engaging portion 29 located between the fulcrum 31 and the coupling portions 33, 34 is shifted vertically to a direction of coupling a connector 10 with a complementary connector 38. The coupling portions 33, 34 are made in parallel to the direction of coupling the connector 10 with the complementary connector 38. The pair of coupling portions 33 and 34 are formed as a pair of legs. A sliding groove 35 is formed between the pair of legs 33 and 34 so as to correspond to an engaging portion 44 of the complementary connector 38. The engaging portion 44 will be slid into the sliding groove 35. In such a configuration, the locking mechanism can remove backlash between a female connector and a male connector to provide high coupling accuracy.

Abstract: A front projection 45 and a rear projection 46 are formed facing each other as locking members in one (female type) connector housing 39. A locking projection 29 of a locking arm 27 of the other (male type) connector housing 11 engages with a space between said projections 45 and 46. Both a front surface 29a of the locking projection 29 and the rear projection 46 are formed into taper shapes, and abut each other. Either a rear end surface 29b of the locking projection 29 or the front projection 45 abutting against the rear end surface 29b is formed into an inverse taper side. The locking arm 27 is supported in a middle fulcrum part 31 raised from the male type connector housing 11, and connecting parts 33 and 34 connected to the connector housing 11. The locking projection 29 is positioned in between the middle fulcrum part 31 and the connecting parts 33 and 34.

Abstract: A connector 1 has a resilient terminal locking arm 12 having a forward half 31 and a rear half 33, the forward half 31 partially defining a wall partition wall 11 for a terminal accommodating space 7 of a housing 2 of the connector, the rear half having a fore end to serve as a terminal stopping surface 32. The terminal stopping surface 32 is positioned at a middle of the terminal locking arm 12 in a longitudinal direction of the connector. A pair of the forward arm halves 31 are provided to be opposed to each other in a transverse direction of the connector, and the terminal stopping surface 32 extends across a width of the terminal accommodation space 7 between the pair of forward halves.

Abstract: A front projection 45 and a rear projection 46 are formed facing each other as locking members in one (female type) connector housing 39. A locking projection 29 of a locking arm 27 of the other (male type) connector housing 11 engages with a space between said projections 45 and 46. Both a front surface 29a of the locking projection 29 and the rear projection 46 are formed into taper shapes, and abut each other. Either a rear end surface 29b of the locking projection 29 or the front projection 45 abutting against the rear end surface 29b is formed into an inverse taper side. The locking arm 27 is supported in a middle fulcrum part 31 raised from the male type connector housing 11, and connecting parts 33 and 34 connected to the connector housing 11. The locking projection 29 is positioned in between the middle fulcrum part 31 and the connecting parts 33 and 34.

Abstract: A structure for locking two workpieces includes: a first workpiece 1 provided with a provisional locking arm 3 and a complete locking arm 4 which are in parallel; a second workpiece 2 provided with an arm receiving portion 5 having a provisional engaging area 15 and a complete engaging area 12 which are to be engaged with the provisional locking portion and the complete locking portion, respectively and a pair of arm guiding portions 6 and 7 on both sides of the arm receiving portion, the arm receiving portion being to advance in between the provisional locking arm and the complete locking arm. One of the arm guiding portions is provided with a slope 21 for slidably supporting a tip of the complete locking arm when the complete locking arm climbs over the complete engaging portion. In such a configuration, inadvertent complete-locking or release thereof of two workpieces can be prevented.

Abstract: In a connector fitting structure, a first retaining portion is formed on an inner surface in a slider receiving portion formed in a housing of the male connector a second retaining portion is formed at an distal end of a first engagement arm of a slider. Slanting surfaces are formed on those portions of the first and second retaining portions so that said second retaining portion smoothly engages with said first retaining portion by operating an operating portion, when the fitted condition of said male and female connectors is cancelled. Further, the slider includes first and second slide members and compression springs and is mounted in the slider receiving portion. Retaining projections are formed on opposite sides of the first slide member, and slider retaining portions are formed on side surfaces of the slider receiving portion. Therefore, the retaining projections are retained by the slider retaining portions.

Abstract: A locking arm 27 if supported by a fulcrum 31 attached to a body 28 and a pair of coupling portions 33, 34. When an operation portion 30 is pressed down, an engaging portion 29 located between the fulcrum 31 and the coupling portions 33, 34 is shifted vertically to a direction of coupling a connector 10 with a complementary connector 38. The coupling portions 33, 34 are made in parallel to the direction of coupling the connector 10 with the complementary connector 38. The pair of coupling portions 33 and 34 are formed as a pair of legs. A sliding groove 35 is formed between the pair of legs 33 and 34 so as to correspond to an engaging portion 44 of the complementary connector 38. The engaging portion 44 will be slid into the sliding groove 35. In such a configuration, the locking mechanism can remove backlash between a female connector and a male connector to provide high coupling accuracy.

Abstract: When a slider (4) is inserted into a slider receiving portion (11), a plurality of first engagement arms (16) are respectively engaged with first retaining portions (15), and also a plurality of third engagement arms (48) are engaged with a third retaining portion (18). Furthermore, when male and female connectors are fitted together, the engagement of the first engagement arms (16) with the first retaining portion (15), as well as the engagement of the third engagement arms (48) with the third retaining portion (18), is forcibly canceled by one of the connectors, and the fitting of the male and female connectors relative to each other is smoothly effected.

Abstract: A structure for locking two workpieces includes: a first workpiece 1 provided with a provisional locking arm 3 and a complete locking arm 4 which are in parallel; a second workpiece 2 provided with an arm receiving portion 5 having a provisional engaging area 15 and a complete engaging area 12 which are to be engaged with the provisional locking portion and the complete locking portion, respectively and a pair of arm guiding portions 6 and 7 on both sides of the arm receiving portion, the arm receiving portion being to advance in between the provisional locking arm and the complete locking arm. One of the arm guiding portions is provided with a slope 21 for slidably supporting a tip of the complete locking arm when the complete locking arm climbs over the complete engaging portion. In such a configuration, inadvertent complete-locking or release thereof of two workpieces can be prevented.

Abstract: A connector 1 has a resilient terminal locking arm 12 having a forward half 31 and a rear half 33, the forward half 31 partially defining a wall partition wall 11 for a terminal accommodating space 7 of a housing 2 of the connector, the rear half having a fore end to serve as a terminal stopping surface 32. The terminal stopping surface 32 is positioned at a middle of the terminal locking arm 12 in a longitudinal direction of the connector. A pair of the forward arm halves 31 are provided to be opposed to each other in a transverse direction of the connector, and the terminal stopping surface 32 extends across a width of the terminal accommodation space 7 between the pair of forward halves.

Abstract: In a connector fitting structure, one connector includes an inner housing, having lock arms, and an outer housing having a slider slidably mounted therein. The other connector includes a housing, and engagement projections for abutment against the slider and for respectively elastically deforming the lock arms are formed on this housing. Second retaining portions, which are engageable respectively with first retaining portions formed on the one connector, are formed respectively on engagement arms 16 provided at a second slide member of the slider. Stoppers, which prevent the cancellation of the engagement of the first retaining portions with the second retaining portions before starting the connector fitting operation, are formed on a first slide member of the slider.