GB2306749A

GB2306749A - Desk-mat with keyboard instrument

Info

Publication number: GB2306749A
Application number: GB9621166A
Authority: GB
Inventors: Shogo Tanaka
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-16
Filing date: 1996-10-10
Publication date: 1997-05-07
Anticipated expiration: 2016-10-10
Also published as: KR970022952A; CN1152158A; DE19643449A1; TW311215B; GB9621166D0; JPH09109593A; GB2306749B

Description

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2306749 p- -: an;J with their own f ami 1v.

p- - - - - -- - IBAD ORIGINAL 2 as the electric power is easily exhausted in a short time because of a flat and small battery, it is difficult to perform music in a long time and it is very troublesome to get the battery changed frequently. Further because of the small battery, it prevents the size of the keyboard itself from being any larger and the small keyboard is not proper for any auditory training.

Accordingly, an object of this invention is to provide a desk-mat with a keyboard instrument most suitable for proper music training having a long useful life and a good sound volume as proper keyboard instrument and desk pad for a proper writing purpose for schoolchildren.

According to the present invention there is provided therefore, a deskmat with a keyboard instrument comprising a rectangular mat member and a container box-body member fixed on a side of said mat member, said mat member being composed of a cushion sheet made of resilient materials and disposed as bottom ply, an insulator sheet disposed immediately on said cushion sheet, a conductor sheet having conductors joined thereon and laid immediately on said insulator sheet, a keyboard printed sheet on which the keyboard is printed and laminated on said conductor sheet, and a transparent sheet through which the keyboard of said keyboard printed sheet can be seen, said container box-body being provided with an IC member connected to the conductors of said conductor sheet and with a speaker connected to said IC member, further said container 3 box-body being also provided to the side portion of said container box- body with a jack for inserting the plug of DC adapter connected to a domestic AC power source, and to the surface of said box-body with a switch fixed between the jack and the IC member.

An embodiment of the present invention will now be described by way of example only, with reference to the accompanying drawings in which:- Fig. 1 shows a perspective view of a desk-mat with a keyboard instrument according to this invention laid on the top plate of a writing desk; Fig. 2 shows a plan view of the desk-mat itself; Fig. 3 shows a longitudinal sectional view along a line A-A of Fig. 2; Fig. 4 shows a longitudinal sectional view along a line 3-B of Fig. 2; and Fig. 5 shows a plan view of the conductor sheet.

A desk-mat with a keyboard instrument according to this invention is composed of a mat member 3 in a rectangular form and a container box-body 2 mounted in a side of said mat member 3 as shown in Fig. 1 and 2. The mat member 3 is provided with a 2ushic as bottom ply. The insulatcr sheet 13 and conductors of small immediately on the i 13 and =he ccnduezzr the cushion shees 11 n sheet 12 made of re cushion sheet is covered with an 2ndu27:r diameter j21ned thereen is laminated nsulater shee 1 havin cnnectei to th d a speaker 7 xed on the side Gf is= 1- of a Z e conductor connected to the con apzer 1 ety the C at of said 11C ai jesk-ma-- sivith keyboard instrument may be c=nected to the the power source and a switch 5 for on and of L' the pcwe7 source is mounted on he sur'ace of the container -ox-bodv 2. Further, the container box-'--cd,; 2 is provided with, a container saucer 16 for pencJ-1s,/-a7-'-,-pcint pens, etc., in the other portion of the surface z'-lereo.LP.

1 Reference n,,-imera'i'.

-nd-c-tes a desk for on which the desk-mat w---'n key'z)cari according to this invention is laid. The keyboard ins-rumen- ac.-crd-nc to this is laid as shlown in Fic. 1 on the too clate of t-he AeSk for schoolchildren can te --:)nducted cr, the - -,z - ' ' W the keyboard ---n -sert in which conditions the writing work.

In the case of for example, the of DC adapter 18 into 2n the side the container bcx body 2 f---r -he power source via operating switch 5 on the Z.1 1 W thereby electricity turned on, then -he keyboard member 9 cwn from the top of the can rake the IC member and also make -:'.-e 7 produce a volum.e of scund to be used for music- 7 tre jesk-mat with Ikeybeard instrument of this the can no' only make writing 4-cz'K--ats, tu- make Practical r EJAZ) 6 Further, a large sized keyboard and a can new be provided in the mat member box-body respectively, then it can be instrument properly for a long period c used as keybcard f time and most suitably for the musical training as well. On the other hand, a cushion sheez bottom ply and an insulator sheet ilient materials is used as smaller in area than that of We mat member, thereby the total length of conductors can be much shorter for connection to the K member which is now very economical.

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Claims

CLAIMS:

1. A desk-mat with a keyboard instrument comprising a mat member and a container boxbody fixed substantially vertically on a side of said mat member, wherein; said mat member is composed of a cushion sheet made of resilient material, an insulator sheet, a conductor sheet to which conductors are jointed thereon, a keyboard printed sheet including a keyboard portion, and a transparent sheet; said conductors of the conductor sheet are connected to the keyboard member of the keyboard printed sheet; said container box-body is provided with an IC member to which said conductors of the conductor sheet are connected and comprises a speaker which is connected to said IC member; and said container box-body is further provided with a jack on a side thereof to which a plug of DC adaptor is inserted and comprises a switch for switching on and off power circuit on the surface thereof.

2. A desk-mat with a keyboard instrument according to Claim 1, wherein said container box-body is provided on its surface with a container saucer for accommodating writing instruments and stationery.

3. A desk-mat with a keyboard instrument according to Claim 1 or 2 and arranged to be laid on a top plate of the desk for schoolchildren.

4. A desk-mat with a keyboard instrument 8 substantially as hereinbefore described with reference to the accompanying drawings.

5. The features herein described or their equivalents, in any patentably novel selection.