JP3613452B2 - Recorder loading mechanism for operation recorder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording paper mounting mechanism of an operation recorder that mounts a recording paper for recording vehicle travel information on a rotary table.
[0002]
[Prior art]
An operation recorder mounted on a vehicle such as a truck, a bus, or a taxi has a recording paper mounted on a rotating table that rotates over time, and the recording needle is brought into contact with the recording paper so that the recording needle is attached to the recording paper. By moving in the radial direction of the recording paper within a predetermined area, information such as the traveling speed and traveling distance of the vehicle is recorded. Here, in order to record accurate running information with a recording needle or the like, it is necessary to rotate the recording paper and the rotary table integrally with each other.
[0003]
The rotary table includes a flat recording paper holding surface on which the recording paper is placed, a locking protrusion formed so as to protrude from the recording holding surface, and the like. The locking projection is disposed at the approximate center of the recording paper holding surface, and its planar shape is formed in a substantially water drop shape. The locking projection is further provided with a rotating shaft, and is provided with a convex portion that is spaced from the rotating shaft. The rotating shaft is positioned at the approximate center of the recording sheet holding surface of the rotating table. A concave groove is formed in the outer peripheral surface along the circumferential direction.
[0004]
The recording paper includes a center hole and a travel information recording area in which information such as a travel speed and a travel distance of the vehicle is recorded by the recording needle. The center hole is provided in substantially the center of the recording paper, and the planar shape is formed in a substantially water droplet shape that can be engaged with the locking protrusion. The recording paper is attached by a mounting mechanism described below in order to rotate integrally with the rotary table.
[0005]
This mounting mechanism includes a pressing member separate from the rotating shaft and the recording paper. The presser member includes an inner cylinder part into which a rotating shaft is inserted when attaching the recording paper to the rotary table, an outer ring part that surrounds the outer periphery of the inner cylinder part and faces the outer edge of the rotary table, and the inner cylinder A connecting portion that connects the outer ring portion and the outer ring portion, and a plurality of locking pieces that are locked in the concave groove of the rotating shaft.
[0006]
Each of the locking pieces is formed from the inner cylinder portion toward the rotary table when the recording paper is attached to the rotary table. The locking pieces are arranged at equal intervals along the circumferential direction of the inner cylinder part. Each locking piece can be freely engaged and disengaged in the groove.
[0007]
The pressing member is attached to the rotating shaft with the locking piece locked in the concave groove. For this reason, the holding member is detachable with respect to the rotating shaft because the locking piece is detachably engageable with the concave groove.
[0008]
When the recording paper is attached to the rotary table, first, the rotary shaft and the convex portion are inserted into the center hole, fitted into the locking projection, and placed on the recording paper holding surface. Then, the locking piece of the pressing member is locked in the concave groove of the rotating shaft. Then, since the outer ring portion faces the outer edge portion of the rotary table, the recording paper is pressed against the recording paper holding surface. At this time, since the center hole formed in the water droplet shape and the locking projection are engaged with each other, the recording paper is integrated with the rotary table and rotates with time.
[0009]
[Problems to be solved by the invention]
However, in the recording paper loading mechanism having the above-described configuration, the connecting portion connects the inner tube portion and the outer ring portion that presses the recording paper to each other at a position where the outer ring portion of the pressing member faces the outer edge portion of the rotary table. Therefore, the connecting portion and the protruding portion interfere with each other in contact with the protruding portion.
[0010]
When the connecting portion and the convex portion come into contact with each other and interfere with each other, the locking piece located in the vicinity of the connecting portion cannot be locked in the concave groove, and the pressing member reliably presses the recording paper against the rotary table. It becomes difficult.
[0011]
As described above, when the recording member is not completely mounted on the rotary table by the presser member, the presser member is detached from the rotary shaft during the operation of the vehicle and the recording paper is detached from the rotary table. In some cases, vehicle travel information cannot be recorded or the recording paper does not rotate integrally with the rotation shaft, so that accurate vehicle travel information cannot be recorded on the recording paper.
[0012]
Accordingly, an object of the present invention is to provide a recording paper mounting mechanism for an operation recording meter that enables the recording paper to be securely mounted on a rotary table so that traveling information can be reliably and accurately recorded on the recording paper. Is to provide.
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and achieve the object, the recording paper mounting mechanism of the operation recorder according to the present invention comprises a rotating shaft erected from a rotary table in a central hole of the recording paper, and the rotating shaft. The recording paper is inserted into the rotating shaft by inserting a convex portion arranged at a distance from the first and second portions and, further, by a latching portion and a latch receiving portion which are detachable from each other. In the recording paper mounting mechanism of the operation recorder that presses the rotary table, the inner cylinder part provided on the presser member into which the rotary shaft is inserted and the outer periphery of the inner cylinder part are surrounded and attached to the rotary shaft. Then, the outer ring portion provided on the holding member facing the outer edge portion of the rotary table, the inner cylinder portion and the outer ring portion are connected to each other and the convex portion is pressed when the recording paper is pressed against the rotary table. Connection provided on the presser member that interferes with the part And a locking restricting portion for restricting the locking portion to the locking receiving portion at a position where the connecting portion and the convex portion interfere with each other, and the locking portion is the pressing member. Inner cylinder Part Provided, the locking receiving portion and the locking regulating portion ,in front Rotation On the axis It is characterized by being provided.
[0014]
According to a second aspect of the present invention, there is provided a recording paper mounting mechanism of the operation recorder according to the first aspect of the present invention, wherein the locking restricting portion includes the connecting portion and the convex portion. And a guide surface for guiding the locking portion at a position where they do not interfere with each other.
[0015]
The recording paper mounting mechanism of the operation recorder according to claim 3 of the present invention is the recording paper mounting mechanism of the operation recorder according to claim 2, wherein the guide surface is In the inner cylinder part of the presser member The pressing member and the rotary table are formed so as to be inclined with respect to a direction in which they come into contact with and separate from each other so that the locking restricting portion gradually tapers.
[0016]
According to the recording paper mounting mechanism of the operation recorder according to the first aspect of the present invention, when the locking restricting portion is located at a position where the convex portion of the rotary table and the connecting portion of the pressing member interfere with each other. , Presser member Inner tube part Of the locking part provided in Axis of rotation The locking is restricted to the locking receiving portion provided in.
[0017]
For this reason, when the locking portion and the locking receiving portion are locked to each other and the pressing member is attached to the rotating shaft, the restricting portion is positioned so that the convex portion and the connecting portion do not interfere with each other. The presser member and the rotating shaft are guided. And the said latching | locking part and the latching receiving part will latch reliably in the position which a convex part and a connection part do not contact mutually and do not interfere.
[0018]
According to the recording paper mounting mechanism of the operation recorder according to the second aspect of the present invention, the latch receiving portion is provided. Rotating axis The above-mentioned provided with a locking part Inner tube part of presser member And a guide surface that guides the locking portion at a position where the connecting portion and the convex portion do not interfere with each other.
[0019]
For this reason, when trying to mount the pressing member on the rotating shaft, the guide surface reliably guides the pressing member and the rotating shaft to a position where the convex portion and the connecting portion do not interfere with each other. And the said latching | locking part and a latching receiving part will latch each other more reliably in the position where a convex part and a connection part do not contact each other and do not interfere.
[0020]
According to the recording paper mounting mechanism of the operation recorder according to the third aspect of the present invention, the guide surface has the locking restricting portion toward one of the inner cylinder portion and the rotating shaft provided with the locking portion, It is formed so as to be tapered.
[0021]
For this reason, when it is going to attach a pressing member to a rotating shaft, the said guide surface will guide a latching | locking part more reliably to the position where the said convex part and a connection part do not mutually interfere. And the said latching | locking part and a latching receiving part latch each other more reliably in the position which a convex part and a connection part do not contact mutually and do not interfere.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
The recording paper mounting mechanism 50 of the operation recorder according to the present invention shown in FIG. 3 and the like is a mechanism used when the recording paper 10 is attached to the cartridge 17 of the operation recorder 1 shown in FIG.
[0023]
The recording paper 10 is held on a rotary table 22 described later. The recording paper 10 is formed in a circular shape. As shown in FIG. 2, the recording paper 10 includes a center hole 10a, a travel distance recording area 10c, a crew member replacement recording area 10d, and a traveling speed recording area 10e.
[0024]
The center hole 10 a is provided in the central portion of the recording paper 10, and the planar shape is formed in a substantially water droplet shape that can be engaged with a locking protrusion 24 described later of the rotary table 22. The travel distance recording area 10c, the crew member replacement recording area 10d, and the travel speed recording area 10e are provided on the outer peripheral side of the center hole 10a, and are arranged in order from the center hole 10a. The travel distance recording area 10c, the crew member replacement recording area 10d, and the travel speed recording area 10e are formed concentrically with each other.
[0025]
The travel distance recording area 10c, the crew member replacement recording area 10d, and the travel speed recording area 10e constitute a travel information recording area 10b for recording vehicle travel information. The travel speed recording area 10e has a scale 10h in increments of 10km / h from "0km / h".
[0026]
The recording paper 10 shown in FIG. 2 can record the running information E of the vehicle for one day. The recording paper 10 is placed on a recording paper holding surface 23a (to be described later) of the rotary table 22 in a state where the recording protrusion 10 is positioned by engaging the locking projection 24 with the center hole 10a.
[0027]
The operation recorder 1 includes a substantially box-shaped main body 6 in which recording needles 18A, 18B, and 18C for information recording are disposed, and a flat holding body that holds a recording paper 10 that is taken in and out of the main body 6. Cartridge 17 or the like.
[0028]
As shown in FIG. 1, the main body 6 includes a lower case 2, an upper case 5, a front panel 11 attached to the lower and front portions of the upper and lower cases 2, 5, an opening / closing lid 14 attached to the lower case 2, And mounting plates 16 attached to both sides of the lower and upper cases 2 and 5.
[0029]
The lower case 2 and the upper case 5 are connected to each other and formed in a box shape. The peripheral walls 2a and 5a of the lower case 2 and the upper case 5 are continuous with each other when the lower case 2 and the upper case 5 are connected to each other.
[0030]
The opening / closing lid 14 is pivotally supported by the front end portion of the lower case 2. The opening / closing lid 14 is attached to the lower case 2 so that a later-described cartridge insertion / extraction opening 13y formed on the front panel 11 can be opened and closed. The opening / closing lid 14 is biased by a spring (not shown) so as to close the cartridge insertion / extraction opening 13y.
[0031]
A clock 13a, a time adjustment button 13c, an open / close key 13d, and a pilot lamp 13x are arranged on the front panel 11 so as to be exposed on the front side, and a cartridge insertion / extraction that allows the inside and outside of the main body 6 to communicate with each other. A mouth 13y is formed.
[0032]
The timepiece 13 a is provided at the left end of the front panel 11. On the right side of the timepiece 13a, a cartridge insertion / extraction opening 13y is formed in the lower half, and a time setting button 13c, an open / close key 13d, and a pilot lamp 13x are provided above the cartridge insertion / extraction opening 13y.
[0033]
The time adjustment button 13c is configured to advance the time of the timepiece 13a by pressing the main body 6 in an assembled state. The open / close key 13d includes a cylinder 13f having a key hole 13g into which a key (not shown) is inserted. The open / close key 13 is arranged with the keyhole 13g exposed on the front side.
[0034]
The cylinder 13f extends between a normal position 13h in which the key hole 13g extends in the vertical direction and an open / close position 13i in which the key hole 13g extends while being inclined downward by the key inserted into the key hole 13g. It is provided to be rotatable along an arrow K in the middle. The cylinder 13f is urged from the open / close position 13i toward the normal position 13h by a coil spring or the like (not shown).
[0035]
The above-mentioned recording needles 18A, 18B, 18C are suspended from the upper side to the lower side so as to face the cartridge 17 accommodated in the main body 6 from the cartridge insertion / extraction opening 13y.
[0036]
The recording needles 18A, 18B, and 18C constitute recording means 18 that records the travel distance, travel speed, and the like as travel information E (shown in FIG. 2) on the recording paper 10. The recording needle 18A is for distance recording for recording travel distance information in the travel distance recording area 10c of the recording paper 10, and the recording needle 18B is a replacement recording for recording crew change information in the crew change recording area 10d of the recording paper 10. The recording needle 18C is for speed recording for recording traveling speed information in the traveling speed recording area 10e of the recording paper 10.
[0037]
These recording needles 18A, 18B, 18C are supported by first to third recording needle moving means 58, 59, 60 so as to be moved independently from each other along the radial direction of the recording paper 10. Yes.
[0038]
Further, the main body 6 accommodates a holder 51 for mounting the cartridge 17 and a transfer mechanism (not shown). The holder 51 is partly exposed from the cartridge insertion / extraction opening 13y by a transfer mechanism or the like, and the recording needles 18A, 18B, and 18C are attached to the loading / unloading portion where the cartridge 17 is mounted and the recording paper 10 held by the cartridge 17. It is moved over the recording location where the traveling information E is recorded. When the holder 51 is located at the loading / unloading location, the opening / closing lid 14 is pressed to open the cartridge insertion / extraction opening 13y.
[0039]
With the above-described configuration, the operation recorder 1 inserts a key into the key hole 13g of the opening / closing key 13d in a state where the empty holder 51 is positioned at the recording location and the opening / closing lid 14 closes the cartridge insertion / extraction opening 13y. With this key, the cylinder 13f is rotated from the normal position 13h to the open / close position 13i, and the holder 51 is transferred from the recording position toward the loading / unloading position.
[0040]
When the holder 51 is transferred toward the loading / unloading position, the opening / closing lid 14 starts to be pushed open against the biasing force of the coil spring. Eventually, the opening / closing lid 14 is completely opened, and the holder 51 stops at the loading / unloading location. The cartridge 17 to which the recording paper 10 is attached is mounted on the holder 51.
[0041]
After the cartridge 17 is completely mounted in the holder 51, the cartridge 17 is further temporarily pushed into the holder 51 until it cannot be pushed abnormally. Then, the holder 51 starts to be transferred from the loading / unloading location toward the recording location. As the holder 51 is transferred, the opening / closing lid 14 is gradually closed by the biasing force of the coil spring, and the opening / closing lid 14 is completely closed by the time the holder 51 is positioned at the recording location. When the holder 51 is positioned at the recording location, the recording paper 10 held by the cartridge 17 starts to rotate, and the travel information E such as the traveling speed of the vehicle is recorded on the recording paper 10 by the recording needles 18A, 18B, 18C. .
[0042]
When the travel information E is recorded on the recording paper 10 due to the end of the operation of the vehicle or the like, the cylinder 13f is moved from the normal position 13h to the open / close position 13i by the key inserted into the key hole 13g of the open / close key 13d. Rotate. Then, the holder 51 starts to be transferred from the recording location toward the loading / unloading location.
[0043]
When the holder 51 is transferred toward the loading / unloading position, the opening / closing lid 14 starts to be pushed open against the biasing force of the coil spring. Eventually, the opening / closing lid 14 is completely opened, and the holder 51 stops at the loading / unloading location. The cartridge 17 is completely pulled out from the holder 51 stopped at the loading / unloading position.
[0044]
When the cartridge 17 is completely pulled out and taken out from the holder 51 at the loading / unloading position, the cylinder 13f is rotated from the normal position 13h toward the opening / closing position 13i by the key inserted into the key hole 13g of the opening / closing key 13d. Then, the empty holder 51 starts to be transferred from the loading / unloading location to the recording location, and the opening / closing lid 14 is closed.
[0045]
The cartridge 17 includes a housing 19 and a recording paper storage unit 20. The housing 19 is formed in a thin box shape corresponding to the opening of the cartridge insertion / extraction opening 13 y and the depth of the main body 1. A power transmission gear group for transmitting power from a drive source such as a motor housed in the main body 1 to a rotary table 22 (to be described later) of the recording paper housing unit 20 is housed in the housing 19.
[0046]
A shutter 21 is provided on a side surface of the housing 19. The shutter 21 is provided so as to be slidable with respect to the side wall of the housing 1. The shutter 21 is slidable to open and close the inside and outside of the housing 19.
[0047]
The shutter 21 slides to open the inside of the housing 19 as the cartridge 17 is mounted on the holder 51 and transferred toward the recording location. When the shutter 21 is opened, the transmission of power between the power transmission gear group and the motor accommodated in the main body 1 is connected, and the rotary table 22 rotates with time.
[0048]
The recording paper storage unit 20 is formed on the upper surface side of the housing 19. The recording paper storage unit 20 includes a rotary table 22 that holds the recording paper 10. The turntable 22 is arranged at the approximate center of the bottom surface of the recording paper storage unit 20.
[0049]
The rotary table 22 is formed of a synthetic resin or the like, and is arranged on a table main body 23 formed in a disk shape and one surface 23a of the table main body 23 as shown in FIGS. The locking projection 24, the rotating shaft 25, the convex portion 26, and the gear portion 27 disposed on the other surface 23b of the table main body 23 are integrally provided.
[0050]
One surface 23a of the table main body 23 provided with the locking projections 24 and the rotating shaft 25 is formed flat and forms a recording paper holding surface described in this specification. The locking projection 24 is arranged at the approximate center of the table body 23, and the planar shape is formed in a substantially water drop shape. The locking projection 24 is formed so as to protrude from the recording paper holding surface 23a, and its upper surface is formed substantially parallel to the recording paper holding surface 23a.
[0051]
The rotating shaft 25 is erected from the upper surface of the locking projection 24. The rotary shaft 25 is disposed at the approximate center of the recording paper holding surface 23 a of the table body 23. The rotating shaft 25 has a substantially circular planar shape. The rotary shaft 25 is erected from the recording paper holding surface 23 a by being erected from the upper surface of the locking projection 24.
[0052]
As shown in FIGS. 5 and 6 and the like, a concave groove 28 is formed on the outer peripheral surface of the rotary shaft 25 as a latch receiving portion. The concave groove 28 is formed in a concave shape from the outer peripheral surface of the rotary shaft 25, and is formed over the entire circumference of the rotary shaft 25. Furthermore, a locking guide surface 29 is formed on the outer edge portion at the tip of the rotating shaft 25. The locking guide surface 29 is formed to be inclined with respect to the axis P of the rotary shaft 25 so that the outer diameter of the rotary shaft 25 is gradually reduced toward the tip of the rotary shaft 25.
[0053]
The convex portion 26 is provided at a distance from the rotary shaft 25 and is erected from the upper surface of the locking projection 24. In the illustrated example, the convex portion 26 is disposed at the distal end portion of the locking projection 24. The locking projection 24 and the convex portion 26 position the recording paper 10 so that the recording paper 10 with the center hole 10 a engaged with the locking projection 24 rotates together with the rotary table 22.
[0054]
The gear portion 27 is arranged substantially coaxially with the table body 23. When the rotary table 22 is attached to the recording paper storage unit 20, the gear unit 27 is located in the housing 19 and meshes with the power transmission gear group described above.
[0055]
With the above-described configuration, the rotary table 22 positions the recording paper 10 by inserting the rotary shaft 25 and the convex portion 26 into the center hole 10a and holds the recording paper 10 on the recording paper holding surface 23a. The recording paper 10 is fixed on the recording paper holding surface 23a in a state where the pressing member 30 (shown in FIG. 3 and the like) is mounted on the rotary shaft 25. The recording paper 10 rotates integrally with the rotary table 22. The rotary table 22 and the presser member 30 constitute a recording paper mounting mechanism 50 described in this specification.
[0056]
As shown in FIGS. 3 and 4, the pressing member 30 is formed of a synthetic resin or the like. As shown in FIGS. 3 and 4, the inner cylindrical portion 31, the outer ring portion 32 surrounding the outer periphery of the inner cylindrical portion 31, the inner cylindrical portion 31 and the outer cylindrical portion 31. A connecting portion 33 that connects the ring portion 32 to each other is integrally provided.
[0057]
The inner cylinder part 31 is formed in a substantially cylindrical shape, and the rotary shaft 25 is inserted inside thereof. The inner cylinder part 31 is formed with a locking piece 34 as a locking part. A plurality of the locking pieces 34 are arranged at substantially equal intervals along the circumferential direction of the inner cylinder portion 31. In the illustrated example, four locking pieces 34 are provided.
[0058]
Each locking piece 34 is provided on the inner peripheral side of the inner cylinder part 31, and one end part is connected to the edge part of the inner cylinder part 31, and the other end part is in the inner cylinder part 31. Is formed so as to extend toward the rotary table 22. As shown in FIG. 4, a hook portion 35 that can be engaged and disengaged in the concave groove 28 is provided at the tip of the other end portion of the locking piece 34. The hook portion 35 is formed in a hook shape in cross section. The locking piece 34 can be elastically deformed so that the catch portion 35 is displaced along the radial direction of the inner cylinder portion 31.
[0059]
When the rotary shaft 25 is inserted into the inner cylinder part 31 and the pressing member 30 is mounted on the rotary table 22, the hook part 35 comes into contact with the locking guide surface 29, and the hook part 35 becomes the inner cylinder part 31. The locking piece 34 is elastically deformed so as to be displaced in a direction in which the inner diameter of the rotating shaft 25 is enlarged, and the hooking portion 35 rides on the outer peripheral surface of the rotating shaft 25 and then locks in the concave groove 28.
[0060]
The outer ring portion 32 is formed in an annular shape so as to face the outer edge portion of the rotary table 22 when the locking piece 34 is locked in the concave groove 28 and the pressing member 30 is mounted on the rotary table 22. . The outer ring part 32 is arranged coaxially with the inner cylinder part 31. An end surface 32 a of the outer ring portion 32 facing the rotary table 22 forms a recording paper pressing surface that presses the recording paper 10 toward the rotary table 22.
[0061]
The connecting portion 33 is formed to extend in the radial direction from the inner cylinder portion 31 toward the outer ring portion 32. The connecting portion 33 is formed to extend from an end portion of the inner cylinder portion 31 located on the rotary table 22 side when the presser member 30 is mounted on the rotary table 22.
[0062]
A plurality of connecting portions 33 are arranged at substantially equal intervals along the circumferential direction of the inner cylinder portion 31 and the outer ring portion 32. When the pressing member 30 is mounted on the rotary table 22, the respective connecting portions 33 interfere with each other when they come into contact with the convex portion 26, and prevent the locking piece 3 from being locked in the concave groove 28. It is arranged. In the illustrated example, four connecting portions 33 are provided, and are arranged at positions corresponding to the respective locking pieces 34.
[0063]
The rotary shaft 25 of the rotary table 22 is formed with a locking restriction projection 36 as a locking restriction portion. As shown in FIGS. 3, 5, and 6, the locking restricting protrusion 36 is formed to protrude upward from the outer edge portion located at the upper end of the rotating shaft 26. As shown in FIG. 6, the locking restricting projection 36 is formed with a substantially constant thickness along the axis P of the rotating shaft 25 in the cross section of the rotating shaft 25, and the locking guide surface 29 described above is formed. Absent.
[0064]
Even if the latching restricting protrusion 36 abuts the latching piece 34, the latching guide surface 29 is not formed. Therefore, the latching protrusion 34 regulates the latching in the concave groove 28 without elastically deforming the latching piece 34. . The locking restricting protrusion 36 restricts the locking of the locking piece 34 to the concave groove 28 at a position where the connecting portion 33 and the convex portion 26 interfere with each other among the positions along the circumferential direction of the rotating shaft 25. Arranged in position.
[0065]
In the illustrated example, the locking restricting protrusion 36 is formed by connecting a line segment C1 that is formed opposite to each other with the center P1 of the rotation shaft 25 interposed therebetween, and the center P1 and the convex portion 26. The minute C2 is arranged at a position orthogonal to each other.
[0066]
Each of the locking restriction projections 36 includes a pair of inclined surfaces 37 and 37 (corresponding to guide surfaces) that gradually taper away from the recording paper holding surface 23 a of the rotary table 22.
[0067]
Each inclined surface 37, 37 is formed to be inclined with respect to the axis P so that the locking restricting protrusion 36 gradually tapers toward the pressing member 30. That is, the inclined surfaces 37 and 37 are formed so as to be inclined with respect to the direction in which the pressing member 30 and the rotary table 22 come into contact with and away from each other.
[0068]
As shown in FIG. 7 (A), the inclined surfaces 37, 37 are formed as shown in FIG. 7 (B) when the catching portion 35 of the locking piece 34 comes into contact with the locking regulating projection 36. The hooking portion 35 is guided along the inclination toward the position where the connecting portion 33 and the convex portion 26 do not contact each other.
[0069]
Then, as shown in FIG. 7C, the hooking portion 35 comes into contact with the locking guide surface 29, and the locking piece 34 is elastic so that the hooking portion 35 is displaced along the locking guide surface 29. The catching portion 35 is guided so as to be deformed. Then, as shown in FIG. 7D, the catching portion 35 is locked in the concave groove 28.
[0070]
With the above-described configuration, when the inclined surfaces 37, 37 of the locking restricting protrusion 36 come into contact with the hooking portion 35 of the locking piece 34, the hooking portion 35 is brought into a position where the connecting portion 33 and the convex portion 26 do not interfere with each other. Guide and lock in the groove 28.
[0071]
According to the recording paper mounting mechanism 50 of the operation recorder 1 of the present embodiment, when the convex portion 26 of the rotary table 22 and the connecting portion 33 of the pressing member 30 are located at a position where they interfere with each other, the locking restriction projection 36 is engaged. The locking of the stop piece 34 to the concave groove 28 is restricted. In addition, since the inclined surfaces 37 and 37 are formed to be inclined with respect to the axis P so that the locking regulation protrusion 36 is tapered, the hooking portion 35 of the locking piece 34 is connected to the convex portion 26 and the connecting portion 33. And guide to a position where they do not interfere with each other.
[0072]
For this reason, the catching portion 35 is locked to the concave groove 28 at a position where the convex portion 26 and the connecting portion 33 do not interfere with each other. Accordingly, the recording paper 10 can be held in the cartridge 17 in a state where the recording paper pressing surface 32a of the outer ring portion 32 of the pressing member 30 is pressed toward the recording paper holding surface 23a.
[0073]
Therefore, the recording paper 10 can be reliably mounted on the rotary table 22, the recording paper 10 can be reliably rotated integrally with the rotary table 22, and the recording paper 10 can be prevented from dropping off from the rotary table 22. The traveling information E can be accurately and reliably recorded on the recording paper 10.
[0074]
In the above-described embodiment, the locking piece 34 is provided on the inner cylinder portion 31 of the pressing member 30 and the locking regulating projection 36 is provided on the rotary shaft 25 of the rotary table 22. 25, and the locking restriction projection 36 may be provided on the inner cylinder portion 31.
[0075]
In this case, the concave groove 28 is formed on the inner peripheral surface of the inner cylindrical portion 31, the locking piece 34 is formed so as to lock the hook portion 35 in the outward direction and the locking restriction is formed. It is desirable to form the protrusion 36 so as to gradually taper toward the rotary table 22.
[0076]
Furthermore, in this embodiment, the cartridge type operation recorder 1 that takes in and out the cartridge 17 containing the recording paper 10 with respect to the main body 6 has been described as an example. However, the tray portion on which the recording paper is loaded is taken in and out of the main body. The present invention can be applied to a tray type operation recorder, and also to a round operation recorder in which a cylindrical main case and a lid case for holding recording paper are connected to each other by a hinge so as to be opened and closed.
[0077]
【The invention's effect】
As described above, according to the recording paper mounting mechanism of the operation recorder according to the first aspect of the present invention, when the locking restricting portion interferes with each other, the protruding portion and the connecting portion interfere with each other. Since the locking with the locking receiving portion is restricted, the pressing member and the rotating shaft are guided to a position where the convex portion and the connecting portion do not interfere with each other. And the said latching | locking part and the latching receiving part will latch reliably in the position which a convex part and a connection part do not contact mutually and do not interfere.
[0078]
Therefore, the recording paper can be reliably mounted on the rotary table, and the traveling information can be recorded reliably and accurately on the recording paper.
[0079]
According to the recording paper mounting mechanism of the operation recorder according to the second aspect of the present invention, when the guide surface of the locking restricting portion is mounted on the rotating shaft, the convex portion and the connecting portion are mutually connected. The locking portion is reliably guided to the position where it does not interfere and locked to the locking receiving portion. Therefore, the recording paper can be reliably loaded by the rotary table, and the travel information can be recorded accurately and more reliably on the recording paper.
[0080]
According to the recording paper mounting mechanism of the operation recorder according to the third aspect of the present invention, the guide surface is directed toward one of the inner cylinder portion and the rotation shaft in which the locking restriction portion includes the locking portion, Since it is inclined so as to be tapered, when the pressing member is mounted on the rotation shaft, the locking portion is more reliably guided to a position where the protruding portion and the connecting portion do not interfere with each other. Lock to the part. Therefore, the recording paper can be more reliably loaded on the rotary table, and the running information can be recorded on the recording paper accurately and more reliably.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a configuration of a cartridge type operation recorder according to an embodiment of the present invention.
FIG. 2 is a plan view showing a main part of a recording sheet held on a rotary table of the cartridge type operation recorder of the same embodiment.
FIG. 3 is a perspective view showing a recording paper mounting mechanism of the cartridge type operation recorder according to the embodiment.
4 is a cross-sectional view of the pressing member taken along line IV-IV in FIG. 3;
5 is a cross-sectional view of the rotary table along the line VV in FIG. 3. FIG.
6 is a cross-sectional view of the rotary table along the line VI-VI in FIG. 3;
FIG. 7 is an explanatory diagram showing a process in which the locking piece of the recording paper loading mechanism of the embodiment is locked in the groove.
[Explanation of symbols]
1 Operation Recorder
10 Recording paper
10a Center hole
22 Rotary table (recording paper loading mechanism)
23a Front surface (recording paper holding surface)
25 Rotating shaft
26 Convex
28 Groove (locking receiving part)
30 Presser member (Recording paper loading mechanism)
31 Inner tube
32 Outer ring
33 Connecting part
34 Locking piece (locking part)
36 Locking restriction protrusion (Locking restriction part)
37 Inclined surface (guide surface)
50 Recording paper loading mechanism
E Driving information

Claims (3)

Inserting a rotary shaft standing upright from the rotary table into the central hole of the recording paper and a convex portion arranged with a space from the rotary shaft, and further, a locking portion and a locking receiving portion that are detachable from each other In the recording paper mounting mechanism of the operation recorder that presses the recording paper to the rotary table by mounting the presser member on the rotary shaft by locking with,
An inner cylinder provided in the presser member into which the rotating shaft is inserted;
An outer ring portion provided on the presser member that surrounds the outer periphery of the inner cylinder portion and is attached to the rotary shaft and faces the outer edge portion of the rotary table;
A connecting portion provided on the pressing member that connects the inner cylindrical portion and the outer ring portion and interferes with the convex portion when pressing the recording paper against the rotary table;
A locking restricting portion for restricting locking of the locking portion to the locking receiving portion at a position where the connecting portion and the convex portion interfere with each other;
The locking portion is provided on the inner cylinder portion of the pressing member,
It said latch receiving portion and the locking regulating unit and is operated recorders of the recording sheet mounting mechanism, characterized in that provided in front Symbol rotation axis. 2. The operation sheet recording paper mounting according to claim 1, wherein the locking restricting portion includes a guide surface for guiding the locking portion at a position where the connecting portion and the convex portion do not interfere with each other. mechanism. The guide surface is formed to be inclined with respect to a direction in which the presser member and the rotary table come into contact with and separate from each other so that the locking restricting portion gradually tapers toward the inner cylinder portion of the presser member. The recording paper mounting mechanism of the operation recorder according to claim 2.

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