JPH0746945Y2 - Pendulum for teaching materials - Google Patents

Pendulum for teaching materials

Info

Publication number
JPH0746945Y2
JPH0746945Y2 JP2631992U JP2631992U JPH0746945Y2 JP H0746945 Y2 JPH0746945 Y2 JP H0746945Y2 JP 2631992 U JP2631992 U JP 2631992U JP 2631992 U JP2631992 U JP 2631992U JP H0746945 Y2 JPH0746945 Y2 JP H0746945Y2
Authority
JP
Japan
Prior art keywords
pipe
weight
bearing
shaft
fitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2631992U
Other languages
Japanese (ja)
Other versions
JPH0654066U (en
Inventor
幸男 和田
Original Assignee
株式会社大和科学教材研究所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社大和科学教材研究所 filed Critical 株式会社大和科学教材研究所
Priority to JP2631992U priority Critical patent/JPH0746945Y2/en
Publication of JPH0654066U publication Critical patent/JPH0654066U/en
Application granted granted Critical
Publication of JPH0746945Y2 publication Critical patent/JPH0746945Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】本考案は、小学校生徒用の理科教
材として使用される実験用振り子に関するものである。
FIELD OF THE INVENTION The present invention relates to an experimental pendulum used as a science teaching material for elementary school students.

【0002】[0002]

【従来の技術】振り子の実験は小学校の理科課程で取り
入れられ、振り子のおもり重量、振動半径、振幅と、単
振動の周期との関係が理解できる様に教材が選ばれてい
る。
2. Description of the Related Art Pendulum experiments are introduced in the science course of an elementary school, and the teaching materials are selected so that the relationship between the weight of the pendulum, the vibration radius, the amplitude, and the period of simple vibration can be understood.

【0003】従来の振り子の教材は、おもりを糸で吊
し、糸の上端を釘等の軸に掛止めて、糸の長さと振動の
周期の関係を測る簡単なものであった。
A conventional pendulum teaching material is a simple one in which a weight is hung with a thread and the upper end of the thread is hooked on a shaft such as a nail to measure the relationship between the thread length and the vibration cycle.

【0004】[0004]

【考案が解決しようとする課題】しかし単振動の周期T
=2π(g/l)×1/2は、おもりの重量、振幅とは関
係がないこと、糸の長さの平方根に反比例することを理
解させるには、おもりを大小に取り替えたり、糸の長さ
を変えて軸とおもりを結びなおさねばならないが、生徒
にとって糸を結ぶ操作に困難があり、本来の振動実験よ
りも糸の結びに手間を要していた。
[Problems to be solved by the invention] However, the period T of a simple vibration
= 2π (g / l) × 1/2 is not related to the weight and amplitude of the weight, and is to be understood that it is inversely proportional to the square root of the length of the thread. Although it was necessary to change the length and tie the shaft and the weight again, it was difficult for the students to tie the thread, and it took more time to tie the thread than the original vibration test.

【0005】[0005]

【問題点を解決するための手段】本考案は、支柱(3)の
上部に軸(7)を水平に突設して、該軸(7)の方向と直交
して突起(9)を有する軸受(10)を軸(7)に回転自由
に嵌め、該軸受(10)の突起(9)にパイプ(12)の上端
を挿入してパイプ(12)を軸受(10)へ着脱可能に固定
すると共に、パイプ(12)の下端には、おもり取付片
(15)及び上向きに延びた突起(14)を有する取付具
(13)の突起(14)を挿入して、取付具(13)をパイプ
(12)の下端に着脱可能に固定し、該取付具(13)の取
付片(15)へおもり(17)を取付けたものである。
According to the present invention, a shaft (7) is horizontally projected on an upper part of a column (3) and has a projection (9) orthogonal to the direction of the shaft (7). The bearing (10) is rotatably fitted on the shaft (7), and the upper end of the pipe (12) is inserted into the protrusion (9) of the bearing (10) to detachably fix the pipe (12) to the bearing (10). At the same time, insert the weight attachment piece (15) and the protrusion (14) of the fixture (13) having the protrusion (14) extending upward to the lower end of the pipe (12) to attach the fixture (13). The pipe (12) is detachably fixed to the lower end thereof, and the weight (17) is attached to the attachment piece (15) of the attachment (13).

【0006】[0006]

【作用】パイプ(12)は振動の半径を表わしている。パ
イプ(12)は軸受(10)の突起(9)及び取付具(13)の
突起(14)に挿入して着脱可能固定されただけであるか
ら、パイプ(12)を取り外して長さが異なるものと交換
し、又は適当な長さに切断して、再び突起(9)(14)に
挿入して取付けることは極めて容易である。
[Operation] The pipe (12) represents the radius of vibration. The pipe (12) is only inserted and fixed in the protrusion (9) of the bearing (10) and the protrusion (14) of the fixture (13) so that the pipe (12) can be removed to have a different length. It is extremely easy to replace it with another one or cut it to an appropriate length and insert it again into the protrusions (9) (14) to mount it.

【0007】又、おもり(17)は重量の異なるものを取
付具(13)に付け替え、又はおもり(17)と取付具(1
3)を一組にして、パイプ(12)に対して交換し、おも
り重量を変えることができる。
Further, the weight (17) having a different weight is replaced with the fixture (13), or the weight (17) and the fixture (1).
The weight can be changed by replacing 3) as a set and replacing it with the pipe (12).

【0008】[0008]

【実施例】台(1)に支柱取付具(2)が嵌められ、該支柱
取付具(2)に支柱(3)が着脱可能に嵌められている。
EXAMPLE A support pole fitting (2) is fitted on a stand (1), and a support pole (3) is detachably fitted on the support pole fitting (2).

【0009】支柱(3)上に、表面に角度目盛、背面に支
柱を嵌める取付輪(4)を突設した角度測定板(5)が垂直
面内に取付けられる。該角度測定板(5)には、その角度
目盛の中心及びその両側に、軸(7)を立てる筒(6)が
突出しており、中央の筒(6)に軸(7)を立て、支柱(3)
から水平に突出させる。
On the pillar (3), an angle measuring plate (5) having an angle scale on the surface and a mounting ring (4) for fitting the pillar on the back is provided in a vertical plane. On the angle measuring plate (5), a cylinder (6) for standing the shaft (7) is projected at the center of the angle scale and both sides thereof, and the shaft (7) is set up on the central cylinder (6) to support the column. (3)
To project horizontally.

【0010】軸(7)には、管体(8)に突起(9)を直角に
突設した軸受(10)が回転自由に嵌まっている。必要に
応じてスペーサ(11)を介して、同様な第2軸受(10
a)を嵌め、キャップ(12)を軸(7)先端に挿して抜け
止めする。
The shaft (7) is rotatably fitted with a bearing (10) in which a projection (9) is formed on the tubular body (8) at a right angle. If necessary, the same second bearing (10
Fit a) and insert the cap (12) into the tip of the shaft (7) to prevent it from coming off.

【0011】ビニール等の軟質樹脂製パイプ(12)の上
端を軸受(10)の突起(9)へ挿入して、パイプの弾力に
よって着脱可能に、軸受(10)へ固定している。
The upper end of the soft resin pipe (12) such as vinyl is inserted into the protrusion (9) of the bearing (10) and is detachably fixed to the bearing (10) by the elasticity of the pipe.

【0012】パイプ(12)の下端には、おもり取付具
(13)から突出している突起(14)を挿して、パイプの
弾力によって着脱可能に取付具(13)を固定する。
At the lower end of the pipe (12), a protrusion (14) protruding from the weight attachment (13) is inserted, and the attachment (13) is detachably fixed by the elasticity of the pipe.

【0013】該取付具(13)は、弾性板を円弧状に曲げ
た取付片(15)を有しており、取付片(15)の先端に掛
り部(16)を内向きに張り出して、該取付片(15)にお
もり(17)を着脱可能に止めている。
The fitting (13) has a mounting piece (15) in which an elastic plate is bent in an arc shape, and a hanging portion (16) is projected inward at the tip of the mounting piece (15), A weight (17) is detachably attached to the attachment piece (15).

【0014】[0014]

【使用例】軸(7)を支点にしてパイプ(12)を角度測定
板(5)の角度目盛の所定高さまで引き上げて手離せ
ば、軸受(10)、パイプ(12)、取付具(13)、おもり
(17)は、軸(7)を支点にして単振動し、周期を測れ
ば、最初の引上げ高さとは無関係に周期一定であること
が実験できる。
[Example of use] If the pipe (12) is raised up to a predetermined height on the angle scale of the angle measuring plate (5) with the shaft (7) as a fulcrum and is released, the bearing (10), the pipe (12) and the fitting (13) ), The weight (17) oscillates with the shaft (7) as a fulcrum, and if the period is measured, it can be tested that the period is constant regardless of the initial pulling height.

【0015】パイプ(12)の上端を突起(9)から強く引
いて抜き出し、パイプ(12)を切断して短かくし、これ
を再び突起(9)に挿して同様に周期測定の実験をすれ
ば、パイプ(12)の長さが短かくなる程、周期は短かい
ことを知ることが出来る。
If the upper end of the pipe (12) is strongly pulled out from the protrusion (9) and pulled out, the pipe (12) is cut into a short length, and this is inserted into the protrusion (9) again, and a similar period measurement experiment is conducted. It can be seen that the shorter the length of the pipe (12), the shorter the cycle.

【0016】取付具(13)のおもり(17)を、重量の異
なるものと付け替え、又は取付具(13)をパイプ下端か
ら抜き出して、別の重量のおもりを具えた取付具(13)
と挿し替えて、周期を測ると、おもりの重量とは無関係
に周期一定を実験できる。
The weight (17) of the fixture (13) is replaced with a different weight, or the fixture (13) is pulled out from the lower end of the pipe and the weight (17) having a different weight is attached.
Replacing with, and measuring the cycle, you can experiment with a constant cycle regardless of the weight of the weight.

【0017】角度測定板(5)に突設した他の筒(6a)に
軸を立て、前述したとおり、軸受(10)、パイプ(12)
をセットして、同質量のおもり(17)を取付けて垂下さ
せ、一方のパイプ(12)を引上げて手離すと、振動の下
端で2つのおもり(17)(17)は衝突するが、運動量を
交換するだけであるから、周期は変らずに単振動を続け
ることが実験できる。
An axis is set up on another cylinder (6a) projecting from the angle measuring plate (5), and as described above, the bearing (10) and the pipe (12).
Set, attach a weight (17) of the same mass and hang it down, and if one pipe (12) is pulled up and released, the two weights (17) (17) collide at the lower end of the vibration, but the momentum Therefore, it is possible to carry out an experiment to continue simple oscillation without changing the period.

【0018】筒体の1本の軸(7)に2つの軸受(10)
(10a)をスペーサ(11)を介して取り付けた場合は、
一方の軸受(10)には長いパイプ(12)、他方の軸受
(10a)には短かいパイプを嵌めて同時に振動させる
と、振動半径の違いによる周期及び振動数の違いが比較
され実感できる。
Two bearings (10) on one shaft (7) of the cylinder
When (10a) is attached via the spacer (11),
If one bearing (10) is fitted with a long pipe (12) and the other bearing (10a) is fitted with a short pipe and vibrated at the same time, the difference in cycle and frequency due to the difference in vibration radius can be compared and felt.

【0019】上記実施例の説明は、本考案を説明するた
めのものであって、実用新案登録請求の範囲に記載の考
案を限定し、或は範囲を減縮する様に解すべきではな
い。又、本考案の各部構成は上記実施例に限らず、実用
新案登録請求の範囲に記載の技術的範囲内で種々の変形
が可能であることは勿論である。
The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the scope of claims for utility model or reducing the scope. Further, the configuration of each part of the present invention is not limited to the above embodiment, and it is needless to say that various modifications can be made within the technical scope described in the scope of claims for utility model registration.

【0020】本考案はおもりの取り付けに糸を用いない
から、糸結びの手間が掛らず、生徒は実験に専念でき
る。又、パイプ(12)は2つの突起(9)(14)に着脱可
能に挿入して固定したから、パイプの交換、パイプ長さ
の変更は容易であり、教材用として優れている。
Since the present invention does not use a thread for attaching the weight, a thread knot is not required and the student can concentrate on the experiment. Further, since the pipe (12) is removably inserted and fixed to the two protrusions (9) and (14), it is easy to replace the pipe and change the pipe length, which is excellent as a teaching material.

【0021】[0021]

【図面の簡単な説明】[Brief description of drawings]

【図1】正面図である。FIG. 1 is a front view.

【図2】側面図である。FIG. 2 is a side view.

【図3】軸受、パイプ、取付具の取付状況を示す斜面図
である。
FIG. 3 is a perspective view showing a mounting state of a bearing, a pipe, and a fitting.

【符号の説明】[Explanation of symbols]

(3) 支柱 (5) 角度測定板 (7) 軸 (9) 突起 (10) 軸受 (12) パイプ (13) 取付具 (14) 突起 (15) 取付片 (17) おもり (3) Post (5) Angle measuring plate (7) Shaft (9) Protrusion (10) Bearing (12) Pipe (13) Fixture (14) Protrusion (15) Mounting piece (17) Weight

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 台(1)に支柱(3)を直立し、支柱(3)の
上部に軸(7)を水平に突設して、該軸(7)の方向と直交
して突起(9)を有する軸受(10)を軸(7)に回転自由
に嵌め、該軸受(10)の突起(9)にパイプ(12)の上端
を挿入してパイプ(12)を軸受(10)へ着脱可能に固定
すると共に、パイプ(12)の下端には、おもり取付片
(15)及び上向きに延びた突起(14)を有する取付具
(13)の突起(14)を挿入して、取付具(13)をパイプ
(12)の下端に着脱可能に固定し、該取付具(13)の取
付片(15)へおもり(17)を取付けた教材用振り子。
1. A stanchion (3) is erected on a stand (1), a shaft (7) is horizontally projected on the upper part of the stanchion (3), and a projection ( The bearing (10) having 9) is rotatably fitted on the shaft (7), the upper end of the pipe (12) is inserted into the protrusion (9) of the bearing (10), and the pipe (12) is inserted into the bearing (10). The fitting (13) is detachably fixed, and the projection (14) of the fitting (13) having the weight fitting piece (15) and the projection (14) extending upward is inserted into the lower end of the pipe (12) to mount the fitting. A pendulum for teaching material in which (13) is detachably fixed to the lower end of a pipe (12), and a weight (17) is attached to a mounting piece (15) of the mounting tool (13).
JP2631992U 1992-04-23 1992-04-23 Pendulum for teaching materials Expired - Lifetime JPH0746945Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2631992U JPH0746945Y2 (en) 1992-04-23 1992-04-23 Pendulum for teaching materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2631992U JPH0746945Y2 (en) 1992-04-23 1992-04-23 Pendulum for teaching materials

Publications (2)

Publication Number Publication Date
JPH0654066U JPH0654066U (en) 1994-07-22
JPH0746945Y2 true JPH0746945Y2 (en) 1995-10-25

Family

ID=12190076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2631992U Expired - Lifetime JPH0746945Y2 (en) 1992-04-23 1992-04-23 Pendulum for teaching materials

Country Status (1)

Country Link
JP (1) JPH0746945Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200468386Y1 (en) * 2013-05-31 2013-08-14 김현서 Pendulum experiment device

Also Published As

Publication number Publication date
JPH0654066U (en) 1994-07-22

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Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 19960423