Patents Assigned to Tachikawa Corporation
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Patent number: 11168518Abstract: Provided is a braking device configured to release a cord in a non-bent state so that the operation force required to pull cords is reduced and the behavior of slats is stabilized during an automatic fall, and a sunlight shielding device using the braking device. A braking device for braking movement of a cord includes a movement converter configured to convert movement of a cord into movement of another member. The movement converter includes sandwiching object configured to allow the cord to be sandwiched. The sandwiching object is configured to change a sandwiched state so that the cord is sandwiched by the sandwiching object when the cord and the sandwiching object move relatively in one direction and the cord is released in a non-bent state when the cord and the sandwiching object move relatively in another direction.Type: GrantFiled: May 19, 2016Date of Patent: November 9, 2021Assignee: TACHIKAWA CORPORATIONInventors: Kazuto Yamagishi, Takatoshi Uematsu, Takenobu Ebato, Nobutoshi Orita, Daisuke Takahashi
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Patent number: 10294719Abstract: A shielding device for opening and closing a shielding member by rotation of a winding shaft, the shielding device including a speed controller configured to control an automatic movement speed of the shielding member, wherein the speed controller includes: a housing containing a viscous fluid; and a moving member contained in the housing and configured to move by rotation of the winding shaft, and the speed controller is configured so that resistance the moving member receives from the viscous fluid varies with movement of the moving member, is provided.Type: GrantFiled: July 6, 2015Date of Patent: May 21, 2019Assignee: TACHIKAWA CORPORATIONInventors: Kazuto Yamagishi, Masaya Yamaguchi, Tsubasa Asaka, Takenobu Ebato
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Patent number: 10190364Abstract: A weft of each rung of a ladder cord is formed of two weft threads, an intersecting portion is formed in the weft threads, a slat is inserted between the intersecting portion and one of warp threads of the ladder cord, and a lifting and lowering cord is inserted between the weft threads at a location between the intersecting portion and another of the warp threads.Type: GrantFiled: March 28, 2013Date of Patent: January 29, 2019Assignee: TACHIKAWA CORPORATIONInventors: Koi Tachikawa, Kazuto Yamagishi, Yoshiyuki Hadano, Tadashi Okamura, Takenobu Ebato
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Publication number: 20180171706Abstract: Provided is a braking device configured to release a cord in a non-bent state so that the operation force required to pull cords is reduced and the behavior of slats is stabilized during an automatic fall, and a sunlight shielding device using the braking device. A braking device for braking movement of a cord includes a movement converter configured to convert movement of a cord into movement of another member. The movement converter includes sandwiching object configured to allow the cord to be sandwiched. The sandwiching object is configured to change a sandwiched state so that the cord is sandwiched by the sandwiching object when the cord and the sandwiching object move relatively in one direction and the cord is released in a non-bent state when the cord and the sandwiching object move relatively in another direction.Type: ApplicationFiled: May 19, 2016Publication date: June 21, 2018Applicant: TACHIKAWA CORPORATIONInventors: Kazuto YAMAGISHI, Takatoshi UEMATSU, Takenobu EBATO, Nobutoshi ORITA, Daisuke TAKAHASHI
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Patent number: 9820601Abstract: A solar shading device includes a head rail that slidably supports leading runners having fabric curtains attached thereto, a carrying mechanism that includes a carrying pulley coupled to the leading runners through a belt and carries the leading runners along the head rail on the basis of the rotation of the carrying pulley, a manual drive unit that includes a first shaft coupled to the carrying pulley and serving as a drive shaft, and a suspension part having the manual drive unit suspended therefrom with the carrying pulley and the first shaft coupled together. Further, with the manual drive unit detached from the suspension part, the suspension part allows an electric drive unit to be suspended therefrom with the carrying pulley and a second shaft coupled together, the electric drive unit including the second shaft as a drive shaft for driving the carrying pulley.Type: GrantFiled: September 9, 2014Date of Patent: November 21, 2017Assignee: TACHIKAWA CORPORATIONInventor: Tatsuya Egami
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Publication number: 20170298691Abstract: A shielding device for opening and closing a shielding member by rotation of a winding shaft, the shielding device including a speed controller configured to control an automatic movement speed of the shielding member, wherein the speed controller includes: a housing containing a viscous fluid; and a moving member contained in the housing and configured to move by rotation of the winding shaft, and the speed controller is configured so that resistance the moving member receives from the viscous fluid varies with movement of the moving member, is provided.Type: ApplicationFiled: July 6, 2015Publication date: October 19, 2017Applicant: TACHIKAWA CORPORATIONInventors: Kazuto YAMAGISHI, Masaya YAMAGUCHI, Tsubasa ASAKA, Takenobu EBATO
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Publication number: 20160270578Abstract: To improve the safety of a curtain accessory for bunching a curtain. A curtain accessory for bunching a curtain includes at least one of members consisting of a tassel, a tassel hook, and a tassel auxiliary part for ensuring safety when attaching the tassel to the tassel hook. A coupling mechanism is disposed on the at least one member or between the adjacent members. The coupling mechanism is configured in such a manner that, when a load applied to the tassel exceeds a predetermined value, the coupling mechanism is decoupled, as well as can be recoupled after decoupled.Type: ApplicationFiled: July 16, 2014Publication date: September 22, 2016Applicant: TACHIKAWA CORPORATIONInventors: Koui TACHIKAWA, Kazuto YAMAGISHI, Sigeharu MATSUO, Masaya YAMAGUCHI, Tatsuya EGAMI, Takenobu EBATO, Yoshihiro TAKAYAMA, Tadashi OKAMURA
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Publication number: 20160220055Abstract: A solar shading device includes a head rail that slidably supports leading runners having fabric curtains attached thereto, a carrying mechanism that includes a carrying pulley coupled to the leading runners through a belt and carries the leading runners along the head rail on the basis of the rotation of the carrying pulley, a manual drive unit that includes a first shaft coupled to the carrying pulley and serving as a drive shaft, and a suspension part having the manual drive unit suspended therefrom with the carrying pulley and the first shaft coupled together. Further, with the manual drive unit detached from the suspension part, the suspension part allows an electric drive unit to be suspended therefrom with the carrying pulley and a second shaft coupled together, the electric drive unit including the second shaft as a drive shaft for driving the carrying pulley.Type: ApplicationFiled: September 9, 2014Publication date: August 4, 2016Applicant: TACHIKAWA CORPORATIONInventor: Tatsuya EGAMI
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Patent number: 9151109Abstract: An operation apparatus of a sunlight shielding apparatus is provided which is equipped with a fail-safe function so as not to hinder behavior of a dweller or the like, and, in usual operation, unnecessary activation of the fail-safe function is prevented, so that enhanced operability can be realized.Type: GrantFiled: April 12, 2011Date of Patent: October 6, 2015Assignee: Tachikawa CorporationInventors: Eiji Kawai, Hajime Nakamura, Yoshiyuki Hadano, Tadashi Okamura
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Publication number: 20150075728Abstract: A weft of each rung of a ladder cord is formed of two weft threads, an intersecting portion is formed in the weft threads, a slat is inserted between the intersecting portion and one of warp threads of the ladder cord, and a lifting and lowering cord is inserted between the weft threads at a location between the intersecting portion and another of the warp threads.Type: ApplicationFiled: March 28, 2013Publication date: March 19, 2015Applicant: TACHIKAWA CORPORATIONInventors: Koi Tachikawa, Kazuto Yamagishi, Yoshiyuki Hadano, Tadashi Okamura, Takenobu Ebato
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Patent number: 8898871Abstract: Provided is an endless operation cord that is easy to replace. The present invention provides an operation cord including: a main cord having one and the other ends; a first coupling part disposed at the one end; and a second coupling part disposed at the other end. The first and second coupling parts can be coupled together directly or via a coupling member and can be coupled or uncoupled by means of a relative rotation between the adjacent coupling parts or between the adjacent coupling parts and coupling member or a relative movement in a direction other than a length direction of the main cord between the adjacent coupling parts or between the adjacent coupling parts and coupling member.Type: GrantFiled: April 27, 2011Date of Patent: December 2, 2014Assignee: Tachikawa CorporationInventors: Hajime Nakamura, Seiya Abo, Eiji Kawai, Masaya Yamaguchi, Shojiro Uehara
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Patent number: 8720523Abstract: A shielding apparatus is provided in which operations of raising and lowering a middle rail and operations of raising and lowering a bottom rail can be performed independently from each other by means of a common operation cord. In a shielding apparatus equipped with an elevation apparatus configured to raise and lower a middle rail 3 and a bottom rail 5, whereby a shielding member 2, 4 can be pulled out in the vertical direction or folded in, the elevation apparatus comprises an operation cord 16 of an endless type hanging down from a head box 1, and selective operation means 13 configured to raise or lower the middle rail 3 through an operation of the operation cord 16 in one direction, and to raise or lower the bottom rail 5 through an operation in the other direction, wherein the selective operation means 13 is configured to push up the middle rail 3 by the bottom rail 5 so that the bottom rail 5 and the middle rail 3 can be raised together.Type: GrantFiled: November 1, 2010Date of Patent: May 13, 2014Assignee: Tachikawa CorporationInventor: Hajime Nakamura
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Publication number: 20140096921Abstract: By operating an endless operation cord so that the operation cord moves around in a rail, a sunlight shielding material is transferred along the rail. The operation cord includes a pair of cord portions extending in parallel with each other along the rail, a first endless edge hanging from one end of the rail, and a second endless edge supported in the rail through a cord support unit. A cord support unit includes positioning release means configured to, when a tensile force is applied to both the cord portions at the second endless edge, release positioning of the second endless edge with respect to the rail and a guide member configured to, when the positioning of the second endless edge is released, allow the second endless edge to move at least until the first endless edge reaches the floor.Type: ApplicationFiled: May 23, 2012Publication date: April 10, 2014Applicant: TACHIKAWA CORPORATIONInventor: Eiji Kawai
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Publication number: 20130056164Abstract: An operation apparatus of a sunlight shielding apparatus is provided which is equipped with a fail-safe function so as not to hinder behavior of a dweller or the like, and, in usual operation, unnecessary activation of the fail-safe function is prevented, so that enhanced operability can be realized.Type: ApplicationFiled: April 12, 2011Publication date: March 7, 2013Applicant: TACHIKAWA CORPORATIONInventors: Eiji Kawai, Hajime Nakamura, Yoshiyuki Hadano, Tadashi Okamura
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Publication number: 20130037226Abstract: Provided is an endless operation cord that is easy to replace. The present invention provides an operation cord including: a main cord having one and the other ends; a first coupling part disposed at the one end; and a second coupling part disposed at the other end. The first and second coupling parts can be coupled together directly or via a coupling member and can be coupled or uncoupled by means of a relative rotation between the adjacent coupling parts or between the adjacent coupling parts and coupling member or a relative movement in a direction other than a length direction of the main cord between the adjacent coupling parts or between the adjacent coupling parts and coupling member.Type: ApplicationFiled: April 27, 2011Publication date: February 14, 2013Applicant: TACHIKAWA CORPORATIONInventors: Hajime Nakamura, Seiya Abo, Eiji Kawai, Masaya Yamaguchi, Shojiro Uehara
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Publication number: 20120216968Abstract: A shielding apparatus is provided in which operations of raising and lowering a middle rail and operations of raising and lowering a bottom rail can be performed independently from each other by means of a common operation cord. In a shielding apparatus equipped with an elevation apparatus configured to raise and lower a middle rail 3 and a bottom rail 5, whereby a shielding member 2, 4 can be pulled out in the vertical direction or folded in, the elevation apparatus comprises an operation cord 16 of an endless type hanging down from a head box 1, and selective operation means 13 configured to raise or lower the middle rail 3 through an operation of the operation cord 16 in one direction, and to raise or lower the bottom rail 5 through an operation in the other direction, wherein the selective operation means 13 is configured to push up the middle rail 3 by the bottom rail 5 so that the bottom rail 5 and the middle rail 3 can be raised together.Type: ApplicationFiled: November 1, 2010Publication date: August 30, 2012Applicant: Tachikawa CorporationInventor: Hajime Nakamura
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Patent number: 7654300Abstract: An obstacle detection stopping device of a solar radiation shielding apparatus capable of suppressing the wear of a lifting cord due to the contact of a slat with the lifting cord. The obstacle detection stopping device (10) comprises a support member (11), a rotary drum (13), a cam clutch (12), and a winding pulley (9). A drive shaft (8) is passed through the inside of the device. A rotating force in the unwinding direction is transmitted to the drive shaft (8) by a tension applied to the winding pulley (9). The rotary drum (13) is integrally fitted to the drive shaft (8), and the cam clutch (12) is fitted to the outer edge thereof so as to be rotated relative to each other. Based on the relative rotation of the cam clutch (12) to the rotary drum (13), the cam clutch (12) is moved along its axial direction to change the state of its engagement with a braking projected part (11g). The cam clutch (12) is installed so as to be non-rotated relative to the winding pulley (9).Type: GrantFiled: December 17, 2004Date of Patent: February 2, 2010Assignee: Tachikawa CorporationInventor: Tomomichi Chigusa
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Patent number: D759399Type: GrantFiled: October 25, 2013Date of Patent: June 21, 2016Assignee: Tachikawa CorporationInventors: Koui Tachikawa, Yoshihiro Takayama
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Patent number: D780482Type: GrantFiled: September 24, 2015Date of Patent: March 7, 2017Assignee: Tachikawa CorporationInventor: Takatoshi Uematsu
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Patent number: D802333Type: GrantFiled: July 16, 2015Date of Patent: November 14, 2017Assignee: Tachikawa CorporationInventors: Shuichi Kuroiwa, Yoshihiro Takayama