Tokyu 7700 series

The Tokyu 7700 series (東急7700系, Tōkyū 7700-kei) was an electric multiple unit (EMU) train type operated by the private railway operator Tokyu Corporation on the Tokyu Ikegami and Tokyu Tamagawa lines in Japan from 1987 to 2018.[1]

Tokyu 7700 series
7700 series set 7910 on the Tokyu Ikegami Line in February 2007
In serviceAugust 1987 – November 2018
ManufacturerTokyu Car Corporation
Constructed1962–1965 (as Tokyu 7000 series)
Entered service1 August 1987
Refurbished1987–1990 (conversions from Tokyu 7000 series)
Scrapped2000–
Number built56 vehicles
Number in serviceNone
Number preserved1 vehicle (cab end only)
Formation3 cars per trainset
Fleet numbers7901-7915
Operator(s)Tokyu Corporation
Line(s) servedTokyu Ikegami Line
Tokyu Tamagawa Line
Specifications
Car body constructionStainless steel
Car length18,000 mm (59 ft 5⁄8 in)
Doors3 pairs per side
Maximum speed85 km/h (55 mph)
Traction systemVariable frequency (GTO)
(sets 7901-7914)
Variable frequency (IGBT)
(set 7915)
Electric system(s)1,500 V DC Overhead wire
Current collection methodPantograph
Track gauge1,067 mm (3 ft 6 in)

Design

The 7700 series trains were formed between 1987 and 1990 using the bodies of former Tokyu 7000 series trains dating from the 1960s, which were modernized with air-conditioning and mated with new bogies and VVVF drive.[1] Cars are 18 metres (59 ft 1 in) long and have three pairs of doors per side.[1]

Operations

The trains are formed as three-car sets and used on the Tokyu Ikegami Line and Tokyu Tamagawa Line.[1]

Formations

As of 1 April 2016, the fleet consists of six three-car sets, formed as follows, with two motored ("M") cars and one non-powered trailer ("T") car, and car 1 at the Gotanda/Tamagawa end.[2]

Car No.123
Designation TcMMc
Numbering 79xx78xx77xx

Cars 2 and 3 are each fitted with one lozenge-type pantograph.[2]

Interior

Passenger accommodation consists of longitudinal seating throughout, with a mixture of brown and orange seat moquette.[1]

  • The interior of intermediate car 7810 in February 2007

History

The 7700 series trains sets were initially formed as two- and four-car sets, however the fleet was subsequently reformed into three-car sets.[1] Set 7915 was formed in 1996 from three former intermediate cars, and had newly-added cab ends of the same design as the Tokyu 1000 series and Tokyu 9000 series trains.[1] This set was withdrawn in 2010.[1]

  • Set 7915 in November 2006

Livery variations
  • Set 7910 in original unpainted livery in May 2012
  • Set 7901 in February 2007
  • Set 7914 in October 2006 in the "Kabuki" livery applied to driver-only operation sets

Withdrawal and resale
Towada Kanko 7700 series EMU set 7902 in September 2009

Withdrawals commenced in 2000, with six end cars being resold to the Towada Kankō Electric Railway in Aomori Prefecture.[1] While these three two-car sets retained the "7700 series" classification, they were renumbered 7701+7901 to 7703+7903, irrespective of their original car numbers.[3] The 7700 series sets were completely retired on 24 November 2018.[4]

Preserved examples
The cab end of former car 7702 preserved inside the Maruzen Ikebukuro bookshop in Tokyo in August 2017

The cab end of former car DeHa 7702 is preserved inside the Maruzen Ikebukuro bookshop in Toshima, Tokyo. Built in March 1966 as 7000 series car DeHa 7046, it was withdrawn in December 2015, and moved to the ground floor of the Maruzen Ikebukuro bookshop building in March 2017, while still under construction.[5]

References
  1. 私鉄車両年鑑2015 [Japan Private Railways Annual 2015] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. 20 June 2015. p. 187. ISBN 978-4-8022-0003-5.
  2. 私鉄車両編成表 2016 [Private Railway Rolling Stock Formations - 2016] (in Japanese). Japan: Kotsu Shimbunsha. 25 July 2016. p. 62. ISBN 978-4-330-70116-5.
  3. 私鉄車両編成表 2011 [Private Railway Rolling Stock Formations - 2011] (in Japanese). Japan: Kotsu Shimbunsha. July 2011. ISBN 978-4-330-22711-5.
  4. "東急で『7700系さよならイベント』開催" ["7700 series goodbye event" held at Tokyu] (in Japanese). Japan: Japan Railfan Magazine. 27 February 2019. Retrieved 27 February 2019.
  5. Goto, Fumio (October 2017). 東京・池袋　ビルに入った3台の電車 [The three trains inside a building in Ikebukuro, Tokyo]. Japan Railfan Magazine (in Japanese). Vol. 57 no. 678. Japan: Koyusha Co., Ltd. p. 78–81.
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