JPS60168699A - Propelling pencil - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Technical Field> The present invention provides a method for writing with the tip of the tip using pen pressure or a slightly stronger force while holding the main body in the writing position when the lead wears out during writing. With regard to writing instruments that were designed to allow the lead to be fed out for a fixed length by releasing the force, there is a history of In addition, as the core retreats, the slider and F*-tsuku (when retracting together through the core, the slider retreats by 8 times more than the retreat of the BX-Tsuku mechanism; sea urchin, 4111)
When Ei-no is released, the writing tip is pulled away from the paper 1, and the slider and chi(・tsuku) return to the position at the servant's side. The return distance 1 of the set slider is the return distance 1i11 of the J11 Tsuta machine [,
J, Sushijinsaku (), Chit due to the expansion of Sunida
・Tsuku (This is a mechanical pencil that allows continuous writing, and is also used in the drawing head of automatic drafting machines, and the lead is pulled out from several chuck bodies for centering.)

<Drawing technique> The slider and the check mechanism are moved back a predetermined distance via the core, and both return to their original positions when the pressing force is released. At that time, the slider is temporarily engaged in the retreated position. Mechanical pencils that perform centering by stopping, returning the tilt mechanism during that time, and then returning the slider are generally called tip-knock type mechanical pencils, such as those disclosed in Japanese Unexamined Patent Publication No. 57-14099 by the applicant of the present application. has been disclosed. With this structure, it is necessary to stagger the timing of the slider's 1) forward and backward movement, and for this purpose an O-ring supported on the inner wall of the shaft cylinder is used as a temporary locking means for the slider. However, there was room for improvement in the reliability and durability of its operation.

The amount of retraction of the slider and the tilt mechanism should be equal, and the two should be carefully selected. Apart from later,
The slider is accommodated in the cylindrical middle frame equipped with the -f dock IjW Ire, and the slider is moved in the radial direction into the middle frame.
Hold the monkey ball at FIJ! J Shi, J to move the hall:
(The slider moves backward from λ4 to the middle frame and moves 11).
A part of the 1' T-bar was formed in Japanese Patent Application Laid-Open No. 57-1898.
! It was disclosed in the August 18 bulletin. However, this (
If it's a 14-year-old, I'm worried about the next slow operation E.

In other words, is the middle frame and slider in manual pressure release 11.1?
Centering is set to 11 by changing the return mother of -)-'
It's very difficult to do this with C1 and 1 in a small retreat...and it's up to you to get the timing right.
) 1g and 1'1 are dangerous and 1! -J' (while writing because the middle frame is pushed back a lot, I/J-etc.) It is difficult to make a smooth callout.

<Disclosure of the Invention> The purpose of the present invention is to eliminate the above-mentioned drawbacks of the conventional mechanical pencil, to reduce the play of related parts until the centering operation, to allow reliable protrusion of the lead, and to enable centering while writing. Provides an improved mechanical pencil that allows the user to maintain the writing posture while maintaining the writing position, and to center the pencil using pressure or rather strong pressure without making any special knocking motions. It is in.

Briefly, the mechanical pencil of the present invention has a slider that is equipped with a lead-carrying member and is elastically biased forward, and is arranged so as to be freely pushed into the barrel, and the lead is allowed to advance behind the slider. A hole chuck machine 114 equipped with a chuck body and a chuck actuating body is installed to prevent the retraction of the lead, and by applying a single pressing force to the writing tip, the slider and the ball f-dock can be combined. :t In a mechanical pencil that performs centering by moving the slider and ball chuck I!4M forward by releasing the pressing force,
It moves with the movement of the chuck actuating body and moves forward elastically.
In addition to providing an actuating body mantle which is energized, in front of the actuating body mantle, there is provided a Rib rudo J (to which the space is attached) which cooperates with the actuating body mantle.
(It is possible to move the slitter away by engaging with the goo, and one end is fixed in the -2 shaft 11).
In the body (^1.5 and then elasticity in J (= J force and 1.:
The oscillation of the slanted white l'' is configured so that the oscillator moves backward due to the reaction force of the writing pressure through the lead. or [i to move the slider to change the distance it moves.
There is one in which the centering is adjusted due to the difference in travel distance.

<BEST MODE FOR CARRYING OUT THE INVENTION> To the detailed description of the pencil according to the present invention,
I will now explain this with a lot of reference to Figure 1. Outer circle 1■17
i's advance payment 1. 'l is engaged with the front end of the front Ge1 part 11+, the core tank 3's: +iii is freely movable rearward 11J sill, and the second rear shaft 10 is 1.1. Joining section 21j 2' (hanging white (1)
Screw together 7 (with the pencil body <)
(r', i i ro formation 1 ~ τ. In the axis station, in addition to the centering pin 3, the tip 1 ('IJ, ri protruding I,
a slider retraction means 10 that engages the guide Tg 4 with l1i5λf, Nislike-5, and the slider and can retract the C slider as the 1I7-Cf Yak operating body retreats;
And turn the booyac body 6 and the jitoku actuating body 7 to the right and place the core 1.
) The forward movement is allowed by δ′ [but the backward movement is prevented.

First, a cylindrical slider 51 with 5q of 8 guide tubes 4 connected in series.
J, J3 is forced forward by a tip spring 20 whose rear end is fixed to a Ji8 mover holder 15, which will be described later, which is fixed within the space between the shafts 1, and the core is gripped by a moderate friction horn C. It has a core entraining member 11, and has a rear protrusion 5a with an outward protrusion 51) formed at its rear end, so that it can be engaged with the pivoting rocker 16 (C, rear). . The tip spring 20 is the bullet j6! 8 forces (1 member's core PF3 gripping force is 6)
It is formed into a small sea urchin.

The slider retraction means 10 is mainly configured to be retracted by the retraction of the fz/tsuku actuating body 7 (1'-), and is normally moved forward by a spring 30 corresponding to the lead pressure. The actuator mantle 12 is urged backward by the spring 13, and the oscillator pressing member 14 moves backward as the actuator mantle 12 retreats. J'-1 Urine J
Furthermore, it is held in this receptacle 15 so as to be able to swing freely.
Noshi, this tilting (JJ, after enlarging Listen r Ku 5') R
A four-part bow (horn 7-16C).

'' - The operating body 1 12 is arranged so that it can freely move back and forth on the outside of the tilting movement 7. Is it as described above? (push)” member 14
The front end surface 17 that comes into contact with the rear end, and the inner part 4 part 18 that engages with the protrusion 7a of the tilting operation stopper 7, and the step part 1≦) of the shaft 1t) 1. 1jj Shoulder 21, history ``iki Y
1λ → In front of the spring 30, the spring support surface 2
Press 2 and the f-dock will operate. When 7 moves backwards,
Note II compatible Ha 30 yen repelling force (J 1 that can be retreated against resistance,
Sea urchin 1-) r in front of 1゜1 part 1 moving body meeting 12,! j
j, j, what about 17? 13, 1, 1! 2: is the oscillating arm 1F section (14I), as shown in Figure 5, the oscillator IG is rocked backwards. Move 1'
:Then, when the suppression member 14 moves forward, it returns to its original position.
31, and the front cylinder part 24, in which the spring 13 is interposed between the rocker holder 15, are shown on the right.

Here, the elastic force of the spring 3o corresponding to the writing 11 is larger than the elastic force IJa of the spring 13 which is pushing the oscillator pressing member 14 backward, and the difference between the two is Cylinder part 1C
The force is set in the range of 150 to 350 g depending on the position of the lead, and this force is received by the lead from the paper surface when writing.
It corresponds to No.

A cylindrical rocker holder 15 in which the rocker pressing member 14 is movably movable back and forth communicates with a notch 32 that holds the rocker 16 so as to be tiltable, and is partially cut out. If the tip 33, which is 0-shaped, is turned to the right to prevent the rocker 1G from coming off backwards, the fulcrum at the time of tilting will be 41+5.

The rocker 16 tiltably held by the holder 15 is
The head portion 34 is longer than the width of the large portion 32 of the holding body 15, the neck portion 35 held by the cutout portion 32, and the inner surface shape of the rear cylindrical portion 23 of the suppressing member 14, and a slider.・A circular leg portion 36 having a circular shape of 1″ is formed so as to be able to engage with the rear end flange Fi l+ of 5.

At the rear of the slider 5, there is a step in the direction of the axis. -Similar small-le chuck structure (・ah-) [Well, trochanter 37 and (bottom 1)
By cooperating with the slope 38, the chuck (hollow and square A, the chuck actuating body 7, -f) is stretched between the rear end of the chuck body G and the chuck actuating body 7, and is attached to the Iζ spring 25. '', the above wedge ('I) is closed, and the core i-broiled jU is 1 aim 11 shi 1 (14j is 6, so if it is Conventionally known J, -ra type (・ah-) Illustrated 11 (in the row, Chitotsuku (small 4J, another 2 sen 1 Chitotsuku 11) 21], link 39 (j) ζ), f dock body 6t. The tool 40 has free play, and rear end knock-type centering can be performed by operating the knock 1 nib knob 41 that is integrally connected to the lead tank J3.The push tool 40 applies an appropriate frictional force In the case of a structure in which the actuating body 7 is not fitted with an outer body, the spring 29 stretched between the actuating body mantle 12 and the tilting actuating body 7 is unnecessary. ?3
No. 42 is a friction locking ring provided on the outer surface of the slider 5, which is used to hold the 8-guidance tube 4 in the barrel 1 when the pencil body is carried away in a place such as a person. It is.

Next, referring to FIGS. 1 to 4, the seat according to the present invention will be described.
Explain the operation of the pencil.

FIG. 1 shows a state in which the core protrudes from the 8-guidance tube 4 and is in a state where it can be written on. In this state, the slider 5 is biased forward by the elastic force of the tip spring 20. In addition, since the tilting body 6 is urged backward by the chuck spring 25 in the chuck maker JJ body 7, a wedge action is exerted between the chuck body 6 and the tilting body 7 via the trochanter 37, so that the tilting body 61 The core is in a state of being bitten, and a relationship has been established that allows the core to move forward but prevents it from retreating. At the same time, the chuck actuating body 7 is pushed against the inner shoulder 18 of the actuating body mantle 12 by the spring 29, and the actuating body mantle 12 is pushed by the elastic force Ia of the writing pressure corresponding spring 30 to the stepped part 19 of the shaft cylinder 1. This state (', 1s motion i G 1.L]: 11 motions have been pushed to 1 ho 15.
However, the oscillator 1G and the 1-movement pressing part 1/1. LU, the push I-[parts 4, 41 /I to the rear (the spring 3 corresponding to the writing pressure, which has a stronger force than the spring 13)
The oscillator 1G is in a freely suspended state on the oscillator holder 15 because it is pushed forward by Jζ to the rear width 1jji17 of the actuator mantle 12 through the oscillator holder 15.

Figure 2 shows the state of writing. From the state shown in Fig. 1 to the writing form shown in Fig.
- through °L Yak resting body 3, chuck operating body 7, operating body outer body 12 one more mouth. Activation 1 is the retreat of the mantle 12, that's it), (Action 1 is the +)i+ of the mantle 12
The end jii 17 was in contact with the j machine pusher 1L part (A1
1t) Due to the elastic force of the spring 13, the actuating body mantle 12 retreats and the head part 3 of the auxiliary rocker 1G moves.
4 (In FIG. 5, the tip 33 of the oscillator holder 15 is used for movement R111, so the rotational force is received by the ends of the slits J to 31 of the oscillator pressing portion 1414. In FIG. 2, Symbol Δ, B.

C1 is the fulcrum, point of force, and point of action when the oscillator 16 is not rotated. When the rocker 1G rotates, it pushes the rear end flange 5b of the slider 5 backward, and only the rotary valve moves the slider 5.
is overcome by the resiliency of the tip spring 20 and the frictional locking force of the core-carrying portion 11 with the core, and is moved backward. That is, the slider 5 moves by a distance Mβ or CJ due to the friction (after receiving a force stronger than the locking force from the rocker 16 from the rocker 16) against the core of the internal core-carrying portion 11. The amount of movement is the retraction distance of the actuator mantle 12 multiplied by AC/8B, and the centering length at this time is the retraction distance of the actuator mantle from the retraction distance t'vll of the slider. Ed minus 11, i.e. J2
1-β2.

FIG. 3 shows the state at the moment when the handwriting LL is released and the writing tip is separated from the paper surface P. In this figure, while the writing pressure is released and the core is separated from the paper surface, the actuating body mantle 12 moves forward and comes into contact with the stepped portion 19 of the barrel 1 and stops. At that time, the surface 17 of the actuating body jacket 12 presses the oscillating element pressing part 14 to return it to its original position, and the oscillator 16 moves to the oscillating arm (1 part H'14). Because it is released from the rotational force, it becomes in a freely suspended state. At this point, Suji Ida-5 (yo/'L ''l; I returns to the state of Rimaru due to the elastic force of I spring 20, and is hypnotized, but in this state or still C Chitotsukuiho 6. The force is 6' (1 C),
Bullet 1 of tip pan 20, force J, core 1 of rim core entrainment part shrine 11
φlxY 11 Since the force is large, the positional relationship shown will be maintained unless the writing pressure is completely released in 6〉.

I accept the state in which writing 1] has been completely canceled.'j5'l
113 in 1 (write A1 *νl; on paper 1) to complete 1.:・;1 distance away, the core gripping force of the zatonk body 0 disappears, 6 L, 1. What happens when the core 11 base is -'1? Same 1 (1 (, -1 ahead *;:
：Pa each 20 glue 'l'Ii';
8 grips 1° 1ka (, 21jrakku-) (Slider 5 is (
8 series 1) Part 4Δ11 (] Hold the core J:'IL, /,:
J,' J: 5! C moves forward until it touches the inner wall of L gold 121.
Ru.

I LL already lead ++A 'ij 'Lx'; When the lead protruding from 4 is worn out by writing, press it against the paper surface while maintaining the writing posture to apply pressure to the lead, and release the pressing L1 force of A. This operation is performed when centering is performed. Centering by normal knocking at the rear end, such as the first centering operation, is done using the above-mentioned fj Mikiaki! 17-14094], but will be briefly explained below.

The wick supplied from the wick tank 3, which is stopped on the inner surface of the closed tip body 6, is
ttl LJ falls freely at the lead-carrying member 112L of the slider 5, and after falling, the wear resistance of the lead-carrying part 11 is applied]
” must win and be sent to the center. For this purpose, you need a regular rear-end knock type Shit-1 pencil or a C-1 pencil.
As shown, all you have to do is press or press the knock cap 41 with a +6: Z mark on the rear end of the core tank 3 with your fingertip.

That is, the 11-it + resistance pusher 40 integrated with the core tank 3 has a relatively strong 1-stroke frictional resistance (the operating body 7
Or, during the forward movement of the pusher 40, the rear step 7b of the chuck actuator 7 causes a frictional resistance of 15 In this case, two springs are tensioned between the chuck actuator 171 and the actuator mantle 12. Since the outer actuating body is phantomly sliding white (I), it moves forward against the spring 30 in response to the pressure of the tank 3). Dock 1 Iku 1:! 9 shi moves forward, and its mop end comes into contact with the back surface of the front end surface 17 of the actuating body 9Y 12 (1'l 1 1), and the advance is stopped. When the wick tank 3 is moved forward at .-, the tip of the wick tank presses the 1 grilling surface of the 1 tokuiho 6 and compresses the spring 2!5 installed at 41η between f1 and Cf. Avoid moving forward only the dock.
The end of the chase to the enlarged part of B, the f-dock body 6
1-114t rubber ring 3t], the self-expanding force 11j will be applied.

Next, the pressing force applied to the knock gap 41 is divided by M, and the compression spring 300) has a restoring force of J and returns to its original state, but the chuck actuating body 7 is FJ! Friction 1 on the resistance pusher 40
Since they are connected by a sensing resistor, while listening to "1" of the ticking body 6, the tip A is pushed back until the protrusion 7a of the actuating body 7 hits the inner shoulder 18 of the actuating body mantle 12, and the return is completed. Then, you will have to grip the core firmly again. In this way, in front of the lead tank 3, in the forward direction, the lead carrying part 4111 of the slider b
Overcoming the resistance of
At 1 o'clock, the chuck body 6 is moved back C with its mouth open, and once it has finished moving back, the core will be held again, so the knocking operation of the knock cap 41 is repeated until the desired core is reached. It becomes possible to take out.

6 and 7 are slider ICs according to the present invention; IA
This is a modification of the means 10, in which the rigid-portrait rocker 1G which is +3 more than the embodiment shown in FIG. The elastic oscillator 11G, which has been given a self-resilient force, is mounted on the oscillating holder 115 and is brought into elastic contact with the tip 117 of the actuating body mantle 12. Due to the retreat of the actuating body mantle 12, the actuating body mantle 12 is moved backward, and the oscillator 11G, which had been in elastic pressure contact with the tip 117 of the actuating body mantle 12, resists the tip spring 20 by its own elastic force. The slider ;) is enlarged and moved to the later part).The other 114 components and operations are roughly the same as those in the embodiment shown in Figs.

In either embodiment, depending on the writing pressure, the chuck 1
11" J9 is 1 nej shakusu i), but in order to deal with the one-factor difference between people, as mentioned above, in the connecting part 2 (r7. ) and the rear cylinder part 1c, change the bullet IJI force of 30 and adjust the centering.

Di＼・-゛pencil+ of the present invention, J of L or above, U',
l: Minimum movement of IM formation (-), fI・Tsuku (Iku) 113 (To move the slider as much as possible, please refer to Section J.
Mo or each J, and applying a force of some magnitude 41 lJ (
It has the advantage of being able to perform centering operations extremely quickly and reliably, and can be used not only as a regular 21.-1 pencil, but also as a 1-inch drawing head for automatic drafting. Shino (there is)

[Brief explanation of drawings]

1 to 4 are longitudinal cross-sectional views of a mechanical pencil according to a first embodiment of the present invention, in which FIG. 1 shows the state before writing, and FIG. Figures 1 and 3 (J) show the state in which writing pressure is applied, and Figure 3 shows the state in which the lead leaves the paper surface for a moment after the writing is released, and Figure 4 shows the state in which the writing pressure is completely released. (The slider has returned and centering has been performed, and the Iζ state is shown.
Figures 6 and 7 are perspective views of the oscillator and related parts of the first embodiment, and Figures 6 and 7 are views of other embodiments of the present invention.4 ... Lead guide box, 5... Slider, 6... Chuck body, 7... F-Totsuta operating body, 9... Jitoku (tsuku), 11... Throat 1 entrainment part shrine, 12... ...Operating body mantle, 13... Spring, 14... Rocker pressing member, 1
5,115... Oscillator holder, 15,116... Oscillator, 20... Tip spring, 30... Spring corresponding to writing pressure.

Claims (1)

[Scope of Claims] 1. A slider having a lead-carrying part Δ and elastically biased by n1Ijj is disposed so as to be freely pushed into the shaft cylinder, and behind the slider there is a slider that allows the lead to move forward. A ball whose receptacle prevents the core from retreating and is equipped with a chuck body and a chuck actuating body.
By applying 1-Vtsuku (Press J to the tip of the writing instrument or lead), the slider 4114 is retracted, and -J is applied to release the pressing force.
- In a mechanical pencil that performs centering while avoiding the above-mentioned switcher and ballge I/tsuku mechanism,
If an actuating body mantle is provided which moves with the movement of the actuating body and is elastically biased in the 6r+ direction, then in front of the actuating body mantle there is a The slider can be moved backward by engaging with the slider, and a tiltable rocker is held by a rocker holder having one end fixed in the shaft cylinder and elastically biased rearward. When the chuck actuating body moves backward due to the reaction force of the writing pressure through the lead, the oscillator tilts and the moving distance of the slider is made to be larger than the moving distance of the tilting body. , centering is performed based on the difference in the moving distance. 2. When the oscillator is urged backward by a spring 8q stretched between the oscillator and the oscillator holder, 1 3. The seat pencil according to claim 1, wherein the rear end of the pressing part is elastically biased rearward by the swinging pressing part, the rear end of which is disposed opposite to the actuator mantle.3. The seat pencil according to claim 1, wherein the child has self-resilience) and is an elastic oscillator that is elastically pressed against the front end of the actuating body mantle.4. It has a front section and a rear cylinder part that are screwed together in an adjustable manner, and the relative position of the front cylinder part and the rear cylinder part is changed, and a spring biases the actuating body mantle forward. Claim No. 11J′i in which the repulsive force is changed to make it more like cypress!
Mechanical pencil as described.