JP7522653B2 - Biometric information recording device - Google Patents

Description

The present invention relates to a biometric information recording device that measures and records biometric information.

To understand the health condition of a living organism such as a human, there are known bioinformation recording devices that measure and record the bioinformation of the organism, such as a Holter electrocardiogram recording device (Patent Document 1). A Holter electrocardiogram recording device is a device that attaches electrodes to the skin of a subject and measures and records the subject's electrocardiogram waveform with the electrodes, and is capable of measuring and recording electrocardiogram waveforms for long periods of time (e.g., 24 hours).

JP 2007-151626 A

A bioinformation recording device such as the Holter ECG recording device described above houses a battery that serves as a driving power source and a memory card that records bioinformation inside its housing. Such a bioinformation recording device has openings and lids for opening and closing the openings to insert and remove the battery, memory card, etc., and has a sealing member such as a packing to prevent water and the like from entering the inside of the housing.

In order to properly seal the opening with the sealing member and the lid, the lid needs to be pressed accurately against the sealing member. For this reason, a metallic rotating shaft is used as the shaft member that rotatably supports the lid, and is inserted into a through hole formed at a precise position.

However, if an unexpected load is applied to the lid when it is opened, the through hole or the rotating shaft may be damaged. In this case, even if the lid is closed, it may not be possible to press the lid accurately against the sealing member, and the lid may lose its waterproofing. In some cases, it may also become difficult to maintain the lid in the closed (locked) state.

The objective of the present invention is to provide a biometric information recording device that is less likely to break even if a load is applied to the lid when it is opened.

The biometric information recording device according to the present invention comprises:
A biological information recording device for measuring and recording biological information,
a cover for opening and closing an opening of a housing of the biometric information recording device;
A support portion that supports the lid portion so as to be openable and closable by a rotation shaft of the lid portion;
Equipped with
The support portion is
A protruding portion protruding from an end of the opening;
an attachment portion that is detachably attached to the protruding portion and that, when attached to the protruding portion, surrounds the axis of the rotation shaft together with the protruding portion;
has.

According to the present invention, the lid is less likely to break even if a load is applied to it when it is opened.

FIG. 1 is a perspective view showing an example of a biometric information recording device according to an embodiment of the present invention, illustrating a state in which a cover is open. FIG. 2 is a perspective view showing the biometric information recording device shown in FIG. 1, illustrating a state in which a cover part is closed. 2 is a perspective view showing the biometric information recording device shown in FIG. 1, illustrating a locked state of a lid portion. FIG. 2 is a cross-sectional view of the support part of the biometric information recording device shown in FIG. 1 , showing a state in which the lid part is open. FIG. 2A and 2B are cross-sectional views of the support part of the biometric information recording device shown in FIG. 1, showing a closed state and a locked state of the lid part. 2 is a perspective view showing an attachment portion constituting a support portion of the biometric information recording device shown in FIG. 1 . FIG. 6 is a perspective view showing a modified example of the mounting portion shown in FIG. 5 . 6 is a perspective view showing another modified example of the mounting portion shown in FIG. 5 . 6C is a cross-sectional view of a support portion corresponding to the mounting portion shown in FIGS. 6A and 6B, showing a state in which the lid portion is in an open state. FIG.

The following describes in detail the embodiment of the present invention with reference to the drawings.

FIGS. 1 to 3 are perspective views showing the biometric information recording device 100 of this embodiment, with FIG. 1 showing the open state of the lid 20, FIG. 2 showing the closed state of the lid 20, and FIG. 3 showing the locked state of the lid 20. In FIGS. 1 to 3, the direction parallel to the opening surfaces of the openings 12 and 13 described below is defined as a first direction D1, and the direction perpendicular to the opening surfaces of the openings 12 and 13 is defined as a second direction D2.

The bioinformation recording device 100 is a device that measures and records bioinformation, such as a Holter electrocardiogram recording device. The bioinformation recording device 100 includes a main body 10 that houses an electronic device (not shown), a battery 120, a recording medium 130, etc., a lid 20 that opens and closes the openings 12, 13 of the housing 11 of the main body 10, and a support 30 that supports the lid 20 so that it can be opened and closed with a rotating shaft 22a described later.

The housing 11 is formed in a box shape with openings 12 and 13. Although not shown, the housing 11 is provided with a display device that displays biometric information, operation switches, and the like. The electronic device is a control device that receives input from the operation switches, measures and records the biometric information, and displays the information on the display device.

The housing 11 is also provided with a connector portion for connecting a measurement probe (not shown). When the bioinformation recording device 100 is a Holter ECG recording device, the probe is an electrode that measures the ECG waveform.

In this embodiment, the opening 12 is an entrance/exit for the battery 120 in the housing 11, and the battery 120 is inserted into the housing 11 and housed therein, or the battery 120 housed in the housing 11 is removed through the opening 12. Similarly, the opening 13 is an entrance/exit for the recording medium 130 in the housing 11, and the recording medium 130 is inserted into the housing 11 and housed therein, or the recording medium 130 housed in the housing 11 is removed through the opening 13. The battery 120 is, for example, a dry cell or a rechargeable battery. The recording medium 130 is, for example, a memory card such as a flash memory.

Some bioinformation recording devices 100 are configured to be able to store electronic components such as batteries and recording media inside. Such bioinformation recording devices 100 are provided with a lid 20 for closing the openings 12 and 13 when closed, and a support 30 for supporting the lid 20 so that it can be opened and closed.

The housing 11 is provided with locking portions 14 and 15 for locking the locking portions 24a and 24b of the lid portion 20 (described later) to the housing 11, and a pressing portion 16 that is pressed against the packing 23 of the lid portion 20 (described later).

The interlocking portion 14 is provided on one side surface 11a of the housing 11 at an end opposite the end where the support portion 30 is provided (the right end of the side surface 11a in FIG. 1), and is formed in a concave shape recessed toward the support portion 30. The interlocking portion 14 thus formed interlocks with the interlocking portion 24a described below.

The interlocking portions 15 are provided on the side surface 11a between the support portion 30 and the interlocking portion 14, at both ends of the short side of the side surface 11a, and are formed in a convex shape that protrudes toward the second direction D2. In addition, the tip of the interlocking portion 15 is bent toward the outside of the housing 11. The interlocking portion 15 thus formed is interlocked with the interlocking portion 24b described below.

The pressing portion 16 is provided so as to protrude in the second direction D2 so as to surround the periphery of the openings 12 and 13. The pressing portion 16 thus formed is pressed against the packing 23 described below, and the lid portion 20 closes the openings 12 and 13 in a watertight state when locked.

The lid portion 20 has a lid portion main body 21, a supported portion 22, a gasket 23, and a movable cover portion 24.

The lid body 21 is the main body of the lid 20, to which the supported part 22 and the gasket 23 are fixed and to which the movable cover part 24 is movably attached.

The supported part 22 extends from the lid body 21 toward a pair of protruding parts 31 of the support part 30 described below, and is disposed between the pair of protruding parts 31. As shown in Figures 4A and 4B described below, the supported part 22 has a rotating shaft 22a extending from the supported part 22 toward the pair of protruding parts 31 on both sides, and the rotating shaft 22a is rotatably supported by the support part 30.

The packing 23 is provided on the surface of the lid body 21 facing the side surface 11a. When the lid 20 is locked, the pressing portion 16 is pressed against the packing 23. Any material may be used as the packing 23 as long as it can create a watertight state between the packing 23 and the lid 20.

The movable cover part 24 is provided on the surface of the lid body 21 opposite the side surface 11a, and is supported on the lid body 21 so as to be movable toward or away from the support part 30.

The movable cover part 24 is provided with locking parts 24a and 24b. The locking part 24a is provided at the end of the lid part 20 opposite the supported part 22 in the longitudinal direction (the left end of the lid part 20 in FIG. 1), and is formed in a convex shape that protrudes toward the supported part 22. When the movable cover part 24 is moved toward the support part 30 while the lid part 20 is closed, the locking part 24a thus formed is locked to the locked part 14 (locked state).

The locking portions 24b are provided between the supported portion 22 and the locking portion 24b at both ends of the lid portion 20 in the short direction, and are formed in a convex shape that protrudes inward from the outer edge of the moving cover portion 24. When the moving cover portion 24 is moved toward the support portion 30 while the lid portion 20 is closed, the locking portions 24b thus formed are locked to the locked portion 15 (locked state). An opening 25 is formed between the packing 23 and the moving cover portion 24. When the locked portion 15 is inserted into the opening 25 and the moving cover portion 24 is moved toward the support portion 30 while the lid portion 20 is closed, the locked portion 15 is locked to the locking portion 24b.

The movable cover part 24 is further provided with a fitting part 24c that is fitted into the fitting groove 31a described below. Here, a pair of fitting parts 24c is provided, and the pair of fitting parts 24c is the end part on the supported part 22 side in the longitudinal direction of the lid part 20, provided on the inner surface of the movable cover part 24, and formed in a convex shape that protrudes from the inner surface of the movable cover part 24 toward its inside. When the movable cover part 24 is moved toward the support part 30 while the lid part 20 is closed, the fitting part 24c thus formed moves toward the fitting groove 31a and is fitted into the fitting groove 31a (locked state).

The support section 30 will be described with reference to Figs. 1 to 3 as well as Figs. 4A, 4B, and 5. Figs. 4A and 4B are cross-sectional views of the support section 30, with Fig. 4A showing the open state of the lid section 20 and Fig. 4B showing the closed and locked states of the lid section 20. Fig. 5 is a perspective view showing the attachment section 32 that constitutes the support section 30. In Figs. 4 and 5, the direction parallel to the opening planes of the openings 12 and 13 is defined as a first direction D1, and the direction perpendicular to the opening planes of the openings 12 and 13 is defined as a second direction D2.

The support portion 30 has a protruding portion 31 protruding from the side surface 11a at the end of the side surface 11a having the openings 12, 13 in the first direction D1. Here, a pair of protruding portions 31 is provided, and the pair of protruding portions 31 are arranged at the end of the side surface 11a in the first direction D1, spaced apart in the axial direction of the rotation shaft 22a so as to sandwich the supported portion 22 at the end of the lid portion 20. In other words, the pair of protruding portions 31 protrude opposite each other, sandwiching the supported portion 22, with the second direction D2 as the protruding direction.

Each protrusion 31 is provided with a groove 31a into which the insertion portion 24c of the lid 20 is inserted when the movable cover portion 24 is moved toward the support portion 30 while the lid 20 is closed. Therefore, when the movable cover portion 24 is moved toward the support portion 30 while the lid 20 is closed, the above-mentioned locking portion 24a locks with the locking portion 14, the locking portion 24b locks with the locking portion 15, and the insertion portion 24c is inserted into the groove 31a, thereby locking the lid 20.

In addition, each protrusion 31 is provided with a first recess 31b that opens toward the first direction D1, and the rotating shaft 22a is disposed in this first recess 31b. This rotating shaft 22a is rotatably supported by the first recess 31b and a second recess 32a (recess in the present invention) described below.

In addition, each protrusion 31 is provided with a hook receiving portion 31c, which is a through hole that passes through the protrusion 31, and the hook receiving portion 31c is hooked to the hook receiving portion 31c of the mounting portion 32, which will be described later.

In addition, each protrusion 31 is provided with a protrusion locking portion 31d that protrudes along the first direction D1. Here, a pair of protrusion locking portions 31d is provided, and the pair of protrusion locking portions 31d are arranged spaced apart from each other in the second direction D2. The pair of protrusion locking portions 31d lock each of a pair of protrusions 32b (described later) so that they cannot move in the second direction D2.

The mounting portion 32 is inserted between the pair of protrusions 31 and is removably attached to the pair of protrusions 31. The direction in which the mounting portion 32 is attached to and detached from the protrusions 31 is the opposite direction to the first direction D1 and the first direction D1.

The mounting portion 32 is provided with a second recess 32a that opens in the opposite direction to the first direction D1 and in which the rotating shaft 22a is disposed between the first recess 31b when the mounting portion 32 is attached to the protruding portion 31. Here, a pair of second recesses 32a is provided, and the ends of the pair of second recesses 32a on the first direction D1 side are formed in an arc shape along the outer diameter of the rotating shaft 22a. Therefore, the rotating shaft 22a is supported rotatably by being sandwiched between the end of the linear first recess 31b and the end of the arc-shaped second recess 32a. In this way, when the mounting portion 32 is attached to the protruding portion 31, it surrounds the axis of the rotating shaft 22a together with the protruding portion 31. Note that the shape of these ends may be any shape as long as the rotating shaft 22a can be surrounded between the first recess 31b and the second recess 32a.

Each second recess 32a is formed from a pair of protrusions 32b that protrude in the direction opposite to the first direction D1. The pair of protrusions 32b are spaced apart from each other in the second direction D2, and sandwich the rotating shaft 22a in the second direction D2 when the mounting portion 32 is attached to the protruding portion 31.

The mounting portion 32 is provided with a hook portion 32c whose tip is formed to protrude outward in the axial direction of the rotating shaft 22a at the portion inserted between the pair of protrusions 31. Here, the hook portion 32c is provided at the tip of the protrusion 32b on the side surface 11a. When the mounting portion 32 is inserted between the pair of protrusions 31 and pushed in in the opposite direction to the first direction D1, the hook portion 32c hooks onto the hook receiving portion 31c, and the mounting portion 32 is attached to the protrusions 31.

The size of the through hole of the hook receiving portion 31c is made larger than the size of the portion to which the hook receiving portion 32c is hooked. When a load is applied to the lid portion 20, the hook receiving portion 32c moves within the range of the size of the hook receiving portion 31c, and the mounting portion 32 moves, preventing a large load from being applied to the rotating shaft 22a.

If an even greater load is applied to the lid portion 20, the mounting portion 32 may be configured to come off the protruding portion 31. A modified example having such a configuration will be described later with reference to Figures 6A, 6B, and 7.

The mounting portion 32 is also provided with a connecting portion 32d that connects the pair of hook portions 32c. This connecting portion 32d is disposed closer to the side surface 11a of the housing 11 than the second recess 32a. This allows the rotation angle of the lid portion 20 to be increased. Increasing the rotation angle of the lid portion 20 makes it easier to insert and remove the battery 120 and recording medium 130, and prevents load from being applied to the rotating shaft 22a until the lid portion 20 is fully opened.

Here, we will explain with reference to Figures 6A, 6B, and 7 how the mounting portion 32 comes off the protruding portion 31 when an even greater load is applied to the lid portion 20.

Figure 6A is a perspective view showing a modified example of the mounting portion 32 shown in Figure 5. Also, Figure 6B is a perspective view showing another modified example of the mounting portion 32 shown in Figure 5. In Figures 6A and 6B, the same reference numerals are used for components equivalent to those shown in Figures 1 to 5, and duplicated explanations will be omitted below.

In the mounting portion 32 shown in FIG. 5, the hook portion 32c is formed so as to protrude outward (outward in the axial direction of the rotation shaft 22a of the lid portion 20) from the tip of the protrusion 32b. In the hook portion 32c, the hook surface 32ca, which is the surface on the side in the direction in which the mounting portion 32 is removed, is formed perpendicular or approximately perpendicular to the outer surface of the protrusion 32b, that is, perpendicular or approximately perpendicular to the first direction D1. In addition, the inner surface of the hook receiving portion 31c, which is a through hole, is also formed perpendicular or approximately perpendicular to the first direction D1 (see FIG. 4A, etc.). The hook surface 32ca is hooked to the inner surface facing the inner surface of the hook receiving portion 31c formed in this way, so that the mounting portion 32 is attached to the protrusion portion 31.

By hooking the hook portion 32c to the hook receiving portion 31c, the mounting portion 32 is attached to the protruding portion 31 and is difficult to come off, but if a larger load is applied to the lid portion 20, the mounting portion 32 may be configured to come off from the protruding portion 31.

In such a case, by changing the hook portion 32c shown in FIG. 5 to the hook portion 32e shown in FIG. 6A, the mounting portion 32 can be configured to come off the protrusion 31 when an even greater load is applied to the lid portion 20. Note that the mounting portion 32 shown in FIG. 6A has the same configuration as the mounting portion 32 shown in FIG. 5, except for the hook portion 32e.

Unlike the hook surface 32ca of the hook portion 32c shown in FIG. 5, the hook surface 32ea of the hook portion 32e is not formed perpendicular or nearly perpendicular to the outer surface of the protrusion 32b, but is formed as an inclined surface that forms an obtuse angle with respect to the outer surface of the protrusion 32b. Therefore, when no large load is applied to the lid portion 20, the hook surface 32ea is hooked to the inner surface facing the inner surface of the hook receiving portion 31c, and the mounting portion 32 is attached to the protrusion 31.

On the other hand, when a larger load is applied to the lid 20, the inclined hook surface 32ea slides on the inner surface facing the inner surface of the hook receiving portion 31c, causing the hook portion 32e to disengage from the hook receiving portion 31c, and the mounting portion 32 comes off from the protruding portion 31. In this way, the mounting portion 32 comes off from the protruding portion 31, so that a large load is not applied to the rotating shaft 22a and the lid 20 is not damaged.

In addition, by changing the hook portion 32c shown in FIG. 5 to the hook portion 32f shown in FIG. 6B, the mounting portion 32 may be configured to come off the protruding portion 31 when an even greater load is applied to the lid portion 20. Note that the mounting portion 32 shown in FIG. 6B has the same configuration as the mounting portion 32 shown in FIG. 5, except for the hook portion 32f.

Unlike the hook surface 32ca of the hook portion 32c shown in FIG. 5, the hook surface 32fa of the hook portion 32f is not formed perpendicular or nearly perpendicular to the outer surface of the protrusion 32b, but is formed as a curved surface that forms an obtuse angle with respect to the outer surface of the protrusion 32b. Therefore, when no large load is applied to the lid portion 20, the hook surface 32fa is hooked onto the inner surface facing the inner surface of the hook receiving portion 31c, and the mounting portion 32 is attached to the protrusion 31.

On the other hand, when a larger load is applied to the lid 20, the curved hook surface 32fa slides on the inner surface facing the inner surface of the hook receiving portion 31c, causing the hook portion 32f to disengage from the hook receiving portion 31c, and the mounting portion 32 comes off from the protruding portion 31. In this way, the mounting portion 32 comes off from the protruding portion 31, so that a large load is not applied to the rotating shaft 22a and the lid 20 is not damaged.

When using the hook portion 32e shown in FIG. 6A or the hook portion 32f shown in FIG. 6B as the hook portion that hooks onto the hook receiving portion 31c in the mounting portion 32, it is advisable to also partially change the shape of the supported portion 22 of the lid portion 20.

Figure 7 is a cross-sectional view of the support part 30 corresponding to the mounting part 32 shown in Figures 6A and 6B, showing the open state of the lid part 20. In Figure 7, the same reference numerals are used for the same components as those shown in Figures 1 to 5, and duplicated explanations will be omitted below.

In the hook portions 32e and 32f shown in Figures 6A and 6B, when a larger load is applied to the cover portion 20, the hook surfaces 32ea and 32fa slide on the opposing inner surface of the hook receiving portion 31c. At this time, it is desirable for the protrusion portion 32b to be able to deform inward (the side where the supported portion 22 is located), but referring to Figure 4A, there is a possibility that the tip portion of the supported portion 22 may hinder the deformation of the protrusion portion 32b.

Therefore, in the side view shown in Figure 7, the shape of the supported part 22-1 has been changed so that the supported part 22-1 and the hook receiving part 31c do not overlap when the lid part 20 is in the open state. Specifically, when the lid part 20 is in the open state, the part of the supported part 22-1 that is located on the hook receiving part 31c side of the rotation shaft 22a is eliminated or made as small as possible.

By changing the shape of the supported portion 22-1 to the above-mentioned shape, there is no obstacle to the deformation of the protrusion 32b, so the protrusion 32b deforms without any obstacle, the hook portions 32e and 32f are released from the hook receiving portion 31c, and the mounting portion 32 comes off from the protruding portion 31.

As described above, in the bioinformation recording device 100 of this embodiment, the support portion 30 that supports the lid portion 20 so that it can be opened and closed has the protrusion portion 31 and the attachment portion 32 configured as described above, so that the lid portion 20 is less likely to be damaged even if a load is applied to it when it is opened.

In addition, in the bioinformation recording device 100 of this embodiment, there is no need to provide a through hole or insert a rotating shaft into the through hole to make the cover rotatable, as in conventional Holter ECG recording devices. Therefore, the shaft member that has been used in the past is no longer necessary, and processing and assembly precision of the shaft member is not required, making the processing and assembly processes easier.

In addition, in the bioinformation recording device 100 of this embodiment, the locking portion 24a is locked to the locked portion 14, the locking portion 24b is locked to the locked portion 15, and the fitting portion 24c is fitted into the fitting groove 31a to lock the lid portion 20. In other words, the rotating shaft 22a is not a member related to the locked state of the lid portion 20. Therefore, when the lid portion 20 rotates, the rotating shaft 22a is not required to have high rotational accuracy. This allows the rotating shaft 22a to be loosely inserted between the first recess 31b and the second recess 32a, which contributes to reducing the load on the rotating shaft 22a and also contributes to facilitating the processing and assembly processes.

The above embodiments are merely examples of how the present invention can be implemented, and the technical scope of the present invention should not be interpreted in a limiting manner based on these embodiments. In other words, the present invention can be implemented in various forms without departing from its gist or main characteristics.

For example, in this embodiment, a Holter ECG recording device is exemplified as the bioinformation recording device 100, but the present invention can also be applied to devices other than a Holter ECG recording device.

10 Main body part 11 Housing 11a Side surface 12, 13 Opening part 14, 15 Locked part 16 Pressing part 20 Lid part 21 Lid part main body 22 Supported part 22a Rotating shaft 23 Packing 24 Movable cover part 24a, 24b Locking part 24c Fitting part 25 Opening part 30 Supporting part 31 Projecting part 31a Fitting groove 31b First recessed part 31c Latch receiving part 31d Projection locking part 32 Mounting part 32a Second recessed part 32b Projection part 32c Latching part 32d Connecting part 100 Biological information recording device 120 Battery 130 Recording medium

Claims (5)

A biological information recording device for measuring and recording biological information,
a cover for opening and closing an opening of a housing of the biometric information recording device;
A support portion that supports the lid portion so as to be openable and closable by a rotation shaft of the lid portion;
Equipped with
The support portion is
A protruding portion protruding from an end of the opening;
an attachment portion that is detachably attached to the protruding portion and that, when attached to the protruding portion, surrounds the axis of the rotation shaft together with the protruding portion;
having
Biometric information recording device. the protruding portions are a pair of protruding portions that are arranged at the end of the opening to be spaced apart from each other in the axial direction of the rotation shaft so as to sandwich the lid portion therebetween,
the mounting portion has a pair of hook portions each having a tip end that protrudes outward in the axial direction of the rotating shaft and is inserted between the pair of protruding portions,
The pair of protruding portions each have a hook receiving portion that hooks the hook portion.
The biological information recording device according to claim 1 . the mounting portion has a recess in which the rotation shaft is disposed when the mounting portion is attached to the protruding portion, and a connecting portion that connects the pair of hook portions,
The connecting portion is disposed on the opening side of the recess.
The biological information recording device according to claim 2 . A fitting portion is provided at an end of the lid portion and is movable relative to the lid portion;
a groove provided on the protruding portion, into which the fitting portion is fitted when the lid portion is locked;
Equipped with
The biological information recording device according to claim 1 . a direction in which the attachment portion is attached and detached is a first direction parallel to an opening surface of the opening portion,
a protruding direction of the protruding portion is a second direction perpendicular to the opening surface,
the mounting portion has a pair of protruding portions that sandwich the rotation shaft in the second direction when the mounting portion is attached to the protruding portion,
The protruding portion has a pair of protrusion locking portions that lock the pair of protrusions so as not to move in the second direction,
The biological information recording device according to claim 1 .

Images